EXHIBIT 3.22

                               HFI HOLDINGS, INC.

                                     BY-LAWS

                              Adopted: MAY 6, 1994


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                                    BY - LAWS

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                                    ARTICLE I

                                     OFFICES

      Section 1. The principal office shall be in the City of Wilmington, County
of New Castle, State of Delaware.

      Section 2. The corporation may also have offices at such other places both
within and without the state of incorporation as the Board of Directors may from
time to time determine or the business of the corporation may require.

                                   ARTICLE II

                            MEETINGS OF STOCKHOLDERS

      Section 1. All meetings of the stockholders for the election of directors
shall be held in the City of Houston, State of Texas, at such place as may be
fixed from time to time by the

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Board of Directors. Meetings of stockholders for any other purpose may be held
at such time and place, within or without the state of incorporation, as shall
be stated in the notice of the meeting or in a duly executed waiver of notice
thereof.

      Section 2. Annual meetings of stockholders, shall be held on such date and
at such times as may be fixed by the Board for the purpose of electing a Board
of Directors and for the transaction of other business as may properly be
brought before the meeting.

      Section 3. Written notice of the Annual Meeting shall be given to each
stockholder entitled to vote thereat not less than ten nor more than fifty days
before the date of the meeting.

      Section 4. The officer who has charge of the stock ledger of the
corporation shall prepare and make, at least ten days before every election of
directors, a complete list of the stockholders entitled to vote at said
election, arranged in alphabetical order, showing the address of and the number
of shares registered in the name of each stockholder. Such list shall be open to
the examination of any stockholder, during ordinary business hours, for a period
of at least ten days prior to the election, either at a place within the city,
town or village where the election is to be held and which place shall be

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specified in the notice of the meeting, or, if not specified, at the place where
said meeting is to be held, and the list shall be produced and kept at the time
and place of election during the whole time thereof, and subject to the
inspection of any stockholder who may be present.

      Section 5. Special meetings of the stockholders, for any purpose or
purposes, unless otherwise prescribed by statute or by the certificate of
incorporation, may be called by the president and shall be called by the
president or secretary at the request in writing of a majority of the Board of
Directors, or at the request in writing of stockholders owning a majority in
amount of the entire capital stock of the corporation issued and outstanding and
entitled to vote. Such request shall state the purpose or purposes of the
proposed meeting.

      Section 6. Written notice of a special meeting of stockholders, stating
the time, place and object thereof, shall be given to each stockholder entitled
to vote thereat, not less than ten nor more than fifty days before the date
fixed for the meeting.

      Section 7. Business transacted at any special meeting of stockholders
shall be limited to the purposes stated in the notice.

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      Section 8. The holders of a majority of the stock issued and outstanding
and entitled to vote thereat, present in person or represented by proxy, shall
constitute a quorum at all meetings of the stockholders for the transaction of
business except as otherwise provided by statute or by the certificate of
incorporation. If, however, such quorum shall not be present or represented at
any meeting of the stockholders, the stockholders entitled to vote thereat,
present in person or represented by proxy, shall have power to adjourn the
meeting from time to time, without notice other than announcement at the
meeting, until a quorum shall be present or represented. At such adjourned
meeting at which a quorum shall be present or represented any business may be
transacted which might have been transacted at the meeting as originally
notified.

      Section 9. When a quorum is present at any meeting, the vote of the
holders of a majority of the stock having voting power present in person or
represented by proxy shall decide any question brought before such meeting,
unless the question is one upon which by express provision of the statutes or of
the certificate of incorporation, a different vote is required in which case
such express provision shall govern and control the decision of such question.

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      Section 10. Each stockholder shall at every meeting of the stockholders be
entitled to one vote in person or by proxy for each share of the capital stock
having voting power held by such stockholder, but no proxy shall be voted on
after eleven months from its date, unless the proxy provides for a longer
period, and, except where the transfer books of the corporation have been closed
or a date has been fixed as a record date for the determination of its
stockholders entitled to vote.

      Section 11. Whenever the vote of stockholders at a meeting thereof is
required or permitted to be taken in connection with any corporate action by any
provisions of the statutes or of the certificate of incorporation, the notice of
meeting, the meeting and vote of stockholders may be dispensed with, if the
holders of outstanding stock having not less than the minimum number of votes
that would be necessary to authorize or take such action at a meeting at which
all shares entitled to vote thereon were present and voted shall sign a consent
in writing, setting forth the action so taken. Prompt notice of such action by
written consent shall be given to those stockholders who have not consented in
writing to such corporate action.

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                                   ARTICLE III

                                    DIRECTORS

      Section 1. The number of directors which shall constitute the whole board
shall be not less than one nor more than nine. Within the limits above
specified, the term "whole Board" as used in these By-Laws shall mean the number
of directors elected and holding office at any time. The directors shall be
elected at the annual meeting of the stockholders, except as provided in Section
2 of this Article, and each director elected shall hold office until his
successor is elected and qualified. Directors need not be stockholders.

      Section 2. Vacancies and newly created directorships resulting from any
increase in the authorized number of directors may be filled by a majority of
the directors then in office, though less than a quorum, and the directors so
chosen shall hold office until the next annual election and until their
successors are duly elected and shall qualify, unless sooner displaced.

      Section 3. The business of the corporation shall be managed by its Board
of Directors which may exercise all such powers of the corporation and do all
such lawful acts and things as are not by statute or by the certificate of
incorporation or

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by these by-laws directed or required to be exercised or done by the
stockholders.

                       MEETINGS OF THE BOARD OF DIRECTORS

      Section 4. The Board of Directors of the corporation may hold meetings,
both regular and special, either within or without the state of incorporation.

      Section 5. The first meeting of each newly elected Board of Directors
shall be held at such time and place as shall be fixed by the vote of the
stockholders at the annual meeting and no notice of such meeting shall be
necessary to the newly elected directors in order legally to constitute the
meeting, provided a quorum shall be present. In the event of the failure of the
stockholders to fix the time or place of such first meeting of the newly elected
Board of Directors, or in the event such meeting is not held at the time and
place so fixed by the stockholders, the meeting may be held at such time and
place as shall be specified in a notice given as hereinafter provided for
special meetings of the Board of Directors, or as shall be specified in a
written waiver signed by all of the Directors.

      Section 6. Regular meetings of the Board of Directors may be held without
notice at such time and at such place as shall from time to time be determined
by the Board.

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      Section 7. The Secretary shall give notice of any special meeting by
mailing the same at least three days, or by telegraphing, telexing, telecopying,
telephoning or personally delivering the same at least one day, before the
meeting to each director; but such notice may be waived by any director. When
notice is given to a director by telephone, it shall be effective in accordance
with Article IV, Section 1 of these By-Laws.

      Section 8. The number of Directors that shall constitute a quorum shall be
not less than one-third of the whole Board of Directors nor less than two
Directors and the act of a majority of the directors present at any meeting at
which there is a quorum shall be the act of the Board of Directors, except as
may be otherwise specifically provided by statute or by the certificate of
incorporation; provided, however, that when the whole Board is comprised of only
one director, then one director shall constitute a quorum and the vote of such
director shall constitute the act of the Board of Directors. If a quorum shall
not be present at any meeting of the Board of Directors, the Directors present
thereat may adjourn the meeting from time to time, without notice other than
announcement at the meeting, until a quorum shall be present.

      Section 9. Unless otherwise restricted by the certificate of incorporation
or these by-laws, any action required or

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permitted to be taken at any meeting of the Board of Directors or of any
committee thereof may be taken without a meeting, if a written consent thereto
is signed by all members of the Board or of such committee as the case may be,
and such written consent is filed with the Minutes of proceeding of the Board or
Committee.

                             COMMITTEES OF DIRECTORS

      Section 10. The Board of Directors may, by resolution passed by a majority
of the whole Board, designate one or more committees, each committee to consist
of two or more of the directors of the corporation, which, to the extent
provided in the resolution, shall have and may exercise the powers of the Board
of Directors in the management of the business and affairs of the corporation
and may authorize the seal of the corporation to be affixed to all papers which
may require it. Such committee or committees shall have such name or names as
may be determined from time to time by resolution adopted by the Board of
Directors.

      Section 11. Each committee shall keep regular minutes of its meetings and
report the same to the Board of Directors when required.

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                            COMPENSATION OF DIRECTORS

      Section 12. The directors may be paid their expenses, if any, of
attendance at each meeting of the Board of Directors and may be paid a fixed sum
for attendance at each meeting of the Board of Directors or a stated salary as
director. No such payment shall preclude any director from serving the
corporation in any other capacity and receiving compensation therefor. Members
of special or standing committees may be allowed like compensation for attending
committee meetings.

                                   ARTICLE IV

                                     NOTICES

      Section 1. Notices to directors and stockholders shall be in writing and
delivered personally or mailed to the directors or stockholders at their
addresses appearing on the books of the corporation. Notice by mail shall be
deemed to be given at the time when the same shall be mailed. Notice to
directors may also be given by telegram, telex, telecopy or telephone; provided,
that when telephone notice is given, such notice shall be effective
substantially concurrently with one other method of giving notice.

      Section 2. Whenever any notice is required to be given under the
provisions of the statutes or of the certificate of incorporation or of these
by-laws, a waiver thereof in writing,

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signed by the person or persons entitled to said notice, whether before or after
the time stated therein, shall be deemed equivalent thereto.

                                    ARTICLE V

                                    OFFICERS

      Section 1. The corporate officers of the Company may consist of a Chairman
of the Board, and may include a Vice Chairman of the Board (both the Chairman
and the Vice Chairman shall be chosen from the Board of Directors), a President,
one or more Vice Presidents, a Secretary, one or more Assistant Secretaries, a
Treasurer, one or more Assistant Treasurers, a Controller, and such other
officers as the Board of Directors may from time to time appoint (none of whom
need be a member of the Board). In so far as permitted by law, any two offices
may be held by the same person. The foregoing officers shall be elected by the
Board of Directors at the first meeting after the stockholders' Annual Meeting
in each year.

      Notwithstanding any of the provisions of this Article V, the holders of a
majority of the outstanding shares of capital stock of the corporation entitled
to vote for the election of Directors, may (i) by written consent at any time,
or (ii) by vote at any special or annual meeting of stockholders, elect,
replace, remove (or consent to such election, replacement or removal) of any one
or more officers of the corporation.

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      Any officer elected or appointed by the Board of Directors may be removed
at any time by the affirmative vote of a majority of the whole Board of
Directors.

      Section 2. The Board of Directors may appoint such other officers and
agents as it shall deem necessary who shall hold their offices for such terms
and shall exercise such powers and perform such duties as shall be determined
from time to time by the Board.

      Section 3. The salaries of all officers and agents of the corporation
shall be fixed by the Board of Directors.

      Section 4. The officers of the corporation shall hold office until their
successors are chosen and qualify. Any officer elected or appointed by the Board
of Directors may be removed at any time by the affirmative vote of a majority of
the Board of Directors. Any vacancy occurring in any office of the corporation
shall be filled by the Board of Directors.

                              CHAIRMAN OF THE BOARD

      Section 5. The Chairman of the Board may be elected by the Board of
Directors at the first meeting after the Annual Meeting of Stockholders in each
year. The Chairman of the Board shall preside at all meetings of stockholders
and of the Board of

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Directors, shall be ex-officio a member of all standing committees, and shall
perform such other duties as may from time to time be requested of him by the
Board of Directors.

                           VICE CHAIRMAN OF THE BOARD

      Section 5a. The Vice Chairman of the Board shall preside at meetings of
the Board of Directors in the absence of the Chairman of the Board, and shall
perform such other duties as may from time to time be requested of him by the
Board of Directors.

                                  THE PRESIDENT

      Section 6. The president shall have the powers and perform the duties
usually incidental to the office of the president. He shall have the general and
actual management of the business of the corporation under the Chairman of the
Board, and shall see that all orders and resolutions of the Board of Directors
are carried into effect.

      Section 7. He shall execute bonds, mortgages and other contracts requiring
a seal, under the seal of the corporation, except where required or permitted by
law to be otherwise signed and executed and except where the signing and
execution thereof shall be expressly delegated by the Board of Directors to some
other officer or agent of the corporation.

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                               THE VICE PRESIDENTS

      Section 8. The vice president, or if there shall be more than one, the
vice presidents in the order determined by the Board of Directors, shall, in the
absence or disability of the president, perform the duties and exercise the
powers of the president and shall perform such other duties and have such other
powers as the Board of Directors may from time to time prescribe.

                     THE SECRETARY AND ASSISTANT SECRETARIES

      Section 9. The secretary shall attend all meetings of the Board of
Directors and all meetings of the stockholders and record all the proceedings of
the meetings of the corporation and of the Board of Directors in a book to be
kept for that purpose and shall perform like duties for the standing committees
when required. He shall give, or cause to be given, notice of all meetings of
the stockholders and special meetings of the Board of Directors, and shall
perform such other duties as may be prescribed by the Board of Directors or
President, under whose supervision he shall be. He shall keep in safe custody
the seal of the corporation and, when authorized by the Board of Directors,
affix the same to any instrument requiring it and, when so affixed, it shall be
attested by his signature or by the signature of an assistant secretary.

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      Section 10. The assistant secretary, or if there be more than one, the
assistant secretaries in the order determined by the Board of Directors, shall
in the absence or disability of the secretary, perform the duties and exercise
the powers of the secretary and shall perform such other duties and have such
other powers as the Board of Directors may from time to time prescribe.

                     THE TREASURER AND ASSISTANT TREASURERS

      Section 11. The treasurer shall have the custody of the corporate funds
and securities and shall keep full and accurate accounts of receipts and
disbursements in books belonging to the corporation in such depositories as may
be designated by the Board of Directors.

      Section 12. He shall disburse the funds of the corporation as may be
ordered by the Board of Directors, taking proper vouchers for such
disbursements, and shall render to the President and the Board of Directors, at
its regular meetings, or when the Board of Directors so requires, an account of
all his transactions as treasurer and of the financial condition of the
corporation.

      Section 13. If required by the Board of Directors, he shall give the
corporation a bond (which shall be renewed every six years) in such sum and with
such surety or sureties as shall be

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satisfactory to the Board of Directors for the faithful performance of the
duties of his office and for the restoration to the corporation, in case of his
death, resignation, retirement or removal from office, of all books, papers,
vouchers, money and other property of whatever kind in his possession or under
his control belonging to the corporation.

      Section 14. The assistant treasurer, or if there shall be more than one,
the assistant treasurers in the order determined by the Board of Directors,
shall, in the absence or disability of the treasurer, perform the duties and
exercise the powers of the treasurer and shall perform such other duties and
have such other powers as the Board of Directors may from time to time
prescribe.

                                 THE CONTROLLER

      Section 15. The controller, following his appointment shall maintain
adequate records of all assets, liabilities and transactions of the corporation
and see that audits thereof are currently and regularly made; and he shall
perform such other duties as may be required by the Board of Directors, the
President or designated Vice President.

                    INDEMNIFICATION OF DIRECTORS AND OFFICERS

      Section 16. Each person who is or was a director or officer of the
corporation, or who serves or may have served at the

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request of the corporation as a director or officer of another corporation,
partnership, joint venture, trust or other enterprise (including the heirs,
executors, administrators or estate of such person) and who was or is a party or
is threatened to be made a party to any threatened, pending or completed claim,
action, suit or proceeding, whether criminal, civil, administrative or
investigative, including appeals, shall be indemnified by the corporation as a
matter of right to the full extent permitted or authorized by the Corporation
Law of the state of incorporation of the corporation, as it may from time to
time be amended, against any expenses (including attorneys' fees), judgments,
fines and amounts paid in settlement, actually and reasonably incurred by him in
his capacity as a director or officer, or arising out of his status as a
director or officer. Each person who is or was an employee or agent of the
corporation, or who serves or may have served at the request of the corporation
as an employee or agent of another corporation, partnership, joint venture,
trust or other enterprise (including the heirs, executors, administrators or
estate of such person) may, at the discretion of the Board, be indemnified by
the corporation to the same extent as provided herein with respect to directors
and officers of the corporation.

      The corporation may, but shall not be obligated to, maintain insurance at
its expense, to protect itself and any person who is

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or was a director, officer, employee or agent of the corporation, or is or was
serving as a director, officer, employee or agent of another corporation,
partnership, joint venture, trust or other enterprise against any liability
asserted against him and incurred by him in any such capacity, or arising out of
his status as such. The corporation may, but shall not be obligated to, pay
expenses incurred in defending a civil or criminal action, suit or proceeding in
advance of the final disposition of such action, suit or proceeding.

      The indemnification provided by this Section 16 shall not be exclusive of
any other rights to which those seeking indemnification may be entitled as a
matter of law or under any agreement, vote of stockholders or disinterested
directors or otherwise.

                                   ARTICLE VI

                              CERTIFICATES OF STOCK

      Section 1. Every holder of stock in the corporation shall be entitled to
have a certificate, signed by, or in the name of the corporation by, the
president or a vice president and the treasurer or an assistant treasurer, or
the secretary or an assistant secretary of the corporation, certifying the
number of shares owned by him in the corporation.

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      Section 2. Where a certificate is signed (1) by a transfer agent or an
assistant transfer agent or (2) by a transfer clerk acting on behalf of the
corporation and a registrar, the signature of any such president, vice
president, treasurer, assistant treasurer, secretary or assistant secretary may
be facsimile. In case any officer or officers who have signed, or whose
facsimile signature or signatures have been used on, any such certificate or
certificates shall cease to be such officer or officers of the corporation,
whether because of death, resignation or otherwise, before such certificate or
certificates have been delivered by the corporation, such certificate or
certificates may nevertheless be adopted by the corporation and be issued and
delivered as though the person or persons who signed such certificate or
certificates or whose facsimile signature or signatures have been used thereon
had not ceased to be such officer or officers of the corporation.

                                LOST CERTIFICATES

      Section 3. The Board of Directors may direct a new certificate or
certificates to be issued in place of any certificate or certificates
theretofore issued by the corporation alleged to have been lost or destroyed,
upon the making of an affidavit of that fact by the person claiming the
certificate of stock to be lost or destroyed. When authorizing such issue of a
new certificate or certificates, the Board of Directors may, in

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its discretion and as a condition precedent to the issuance thereof, require the
owner of such lost or destroyed certificate or certificates, or his legal
representative, to advertise the same in such manner as it shall require and/or
give the corporation a bond in such sum as it may direct as indemnity against
any claim that may be made against the corporation with respect to the
certificate alleged to have been lost or destroyed.

                               TRANSFERS OF STOCK

      Section 4. Upon surrender to the corporation or the transfer agent of the
corporation of a certificate for shares duly endorsed or accompanied by proper
evidence of succession, assignment or authority to transfer, it shall be the
duty of the corporation to cancel the old certificate and record the transaction
upon its books.

                      FIXING THE DATE FOR DETERMINATION OF
                             STOCKHOLDERS OF RECORD

      Section 5. The Board of Directors may close the stock transfer books of
the corporation for a period not more than forty nor less than ten days
preceding the date of any meeting of stockholders, nor more than forty days
prior to the date of any other action, such as the date for payment of any
dividend or the date for the allotment of rights or the date when any change or
conversion or exchange of capital stock shall go into effect or for a period of
not exceeding forty days in connection with

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obtaining the consent of stockholders for any purpose. In lieu of closing the
stock transfer books as aforesaid, the Board of Directors may fix in advance a
date, not more than forty nor less than ten days preceding the date of any
meeting of stockholders, nor more than forty days prior to the date of any other
action, such as the date for the payment of any dividend, or the date for the
allotment of rights, or the date when any change or conversion or exchange of
capital stock shall go into effect, or a date in connection with obtaining such
consent, as a record date for the determination of the stockholders entitled to
notice of, and to vote at, any such meeting, and any adjournment thereof, or
entitled to receive payment of any such dividend, or to any such allotment of
rights, or to exercise the rights in respect of any such change, conversion or
exchange of capital stock, or to give such consent and in such case such
stockholders and only such stockholders as shall be stockholders of record on
the date so fixed shall be entitled to such notice of, and to vote at, such
meeting and any adjournment thereof, or to receive payment of such dividend, or
to receive such allotment of rights, or to exercise such rights, or to give such
consent, as the case may be notwithstanding any transfer of any stock on the
books of the corporation after any such record date fixed as aforesaid.

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                             REGISTERED STOCKHOLDERS

      Section 6. The corporation shall be entitled to recognize the exclusive
right of a person registered on its books as the owner of shares to receive
dividends, and to vote as such owner, and to hold liable for calls and
assessments a person registered on its books as the owner of shares and shall
not be bound to recognize any equitable or other claim to or interest in such
share or shares on the part of any other person, whether or not it shall have
express or other notice thereof, except as otherwise provided by the laws of the
state of incorporation.

                                   ARTICLE VII

                               GENERAL PROVISIONS

                                    DIVIDENDS

      Section 1. Dividends upon the capital stock of the corporation, subject to
the provisions of the certificate of incorporation, if any, may be declared by
the Board of Directors at any regular or special meeting, pursuant to law.
Dividends may be paid in cash, in property, or in shares of the capital stock
subject to the provisions of the certificate of incorporation.

      Section 2. Before payment of any dividend, there may be set aside out of
any funds of the corporation available for dividends such sum or sums as the
directors from time to time, in

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their absolute discretion, think proper as a reserve or reserves to meet
contingencies, or for equalizing dividends, or for repairing or maintaining any
property of the corporation, or for such other purpose as the directors shall
think conducive to the interest of the corporation, and the directors may modify
or abolish any such reserve in the manner in which it was created.

                                ANNUAL STATEMENT

      Section 3. The Board of Directors shall present at each annual meeting,
and at any special meeting of stockholders when called for by vote of the
stockholders, a full and clear statement of the business and condition of the
corporation.

                                     CHECKS

      Section 4. All checks or demands for money and notes of the corporation
shall be signed by such officer or officers or such other person or persons as
the Board of Directors may from time to time designate.

                                   FISCAL YEAR

      Section 5. The fiscal year of the corporation shall be fixed by resolution
of the Board of Directors.

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                                      SEAL

      Section 6. The corporate seal shall have inscribed thereon the name of the
corporation, the year of its organization and the words "Corporate Seal" and the
state of incorporation. The seal may be used by causing it or a facsimile
thereof to be impressed or affixed or reproduced or otherwise.

                                  ARTICLE VIII

                                   AMENDMENTS

      Section 1. These by-laws may be altered or repealed at any meeting of the
stockholders or of the Board of Directors if notice of such alteration or repeal
be contained in the notice of such meeting. No change of the time or place of
the meeting for the election of directors shall be made within sixty days next
before the day on which such meeting is to be held, and in case of any change of
such time or place, notice thereof shall be given to each stockholder in person
or by letter mailed to his last known post office address at least twenty days
before the meeting is held.

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