EMPLOYMENT AGREEMENT

     AGREEMENT dated as of Jan. 14, 1992, between CNS Compressor Corporation, 
a Minnesota corporation (the "Company"), Suite 255, Southgate Office Plaza, 
5001 West 80th Street, Minneapolis, MN 55437, and Thomas C. Edwards, 1426 
Gleneagles Way, Rockledge, FL 32955 (the "Executive").

     WITNESSETH:

     The parties hereto agree as follows:

     1. EMPLOYMENT. The Company hereby employs the Executive and the Executive
hereby accepts employment upon the terms and conditions hereinafter set forth.

     2. TERM. This Agreement shall commence on the date hereof and shall
terminate as of the earlier of:

          (a)  Five (5) years from the date hereof (the "Initial Term") unless
the Company notifies the Executive that it elects to extend the term hereof for
an additional One (1) year (the "Renewal Period"), such notice to be given
within sixty (60) days before the end of the Initial Term hereof or within sixty
(60) days before the end of each successive Renewal Period;

          (b)  the death of the Executive;

          (c)  thirty (30) days after notice is given by the Company to the
Executive after a material breach hereof; or

          (d)  thirty (30) days after notice is given by the Executive to the
Company after a material breach hereof by the Company.

          (e)  in the event that all of the patents which relate to, and are
used by the Company in the manufacture, use, lease or sale of, the Licensed
Products included in Patent Rights and Foreign Patent Rights under that certain
Patent And Know-How License Agreement between the Company and the Executive have
become unenforceable due to a final adverse judgment by a court of competent
jurisdiction which cannot or has not been appealed, the Company at its sole
option may terminate this Agreement thirty (30) days after notice is given by
the Company to the Executive of its intention to do so.

          (f)  in the event the Executive shall for any reason whatever
terminate that certain Patent And Know-How License Agreement between the Company
and the Executive, the Company at its sole option may terminate this Agreement
thirty (30) days after notice is given by the Company to the Executive of its
intention to do so.

     The exercise of the Company's or the Executive's right to 



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terminate this Agreement pursuant to clause (c), (d), (e) or (f) hereof, as 
the case may be, shall not abrogate the rights and remedies of the 
terminating party in respect of the breach giving rise to such termination.

     The Company shall only be deemed to have materially breached this Agreement
and the terms of the Executive's employment if it fails to comply with Section 3
hereof.

     3. COMPENSATION. For all services rendered under this Agreement:

          (a)  (i) The Company shall pay the Executive a base salary of Seventy
Two Thousand ($72,000.00) Dollars per annum in equal bimonthly installments.
Such salary shall be annually adjusted at each anniversary date of this
Agreement for (1) any change from the preceding year in the cost-of-living index
for the appropriate State of Florida region compiled by the United States
Department of Labor and/or (2) any increase in the rate of base salary solely
approved by the Company board of directors by its decision.

               (ii) In the event the Company elects to extend the Initial Term
of this Agreement, such salary for any Renewal Period shall be adjusted at the
anniversary date of this Agreement as provided above.

               (iii) If the Executive has been disabled for a period of at least
ninety (90) consecutive days, the Company may elect, upon notice to the
Executive, to pay the Executive fifty (50%) percent of the compensation the
Executive would otherwise be entitled to pursuant to clause (i) or (ii) above
and shall thereupon have no further obligation under Section 3 hereof.
Disability shall mean the Executive's inability, due to sickness or injury, to
perform effectively his duties hereunder.

          (b)  During the term of his employment, the Executive shall be
entitled to participate in employee benefit plans or programs of the Company, if
any, to the extent that his position, tenure, salary, age, health and other
qualifications make him eligible to participate, subject to the rules and
regulations applicable thereto. Such benefits shall include, and subject to the
approval of the Board of Directors, twenty-one (21) days paid vacation and
qualified pension and profit sharing plans.

          (c)  The Executive shall be entitled to reimbursement of all direct
expenses incurred by him in the performance of his duties, subject to the
presenting of appropriate vouchers in accordance with the Company's policy.

     4. DUTIES. So long as the Company has not notified the Executive of his
disability pursuant to Section 3(a)(iii), the Executive is engaged with the
title and functions of Chief 



                                       2



Executive Officer and President of the Company and, subject to the direction 
of Company Board of Directors, shall perform and discharge well and 
faithfully the duties which may be assigned to him from time to time by the 
Company in connection with the conduct of its business. Nothing herein shall 
preclude the Board of Directors of the Company from changing the Executive's 
title and duties if such Board of Directors has concluded in its reasonable 
judgment that such change is in the Company's best interests; provided, 
however, that at all times during the term of this Agreement, the Executive 
shall be employed as a senior executive of the Company. If the Executive is 
elected or appointed a director of the Company or an officer or director of 
any subsidiary thereof during the term of this Agreement, the Executive will 
serve in such capacity without further compensation.

     5. EXTENT OF SERVICES.

          (a)  So long as the Company has not notified the Executive of his
disability pursuant to Section 3(a)(iii) hereof, the Executive shall devote his
entire time, attention and energies to the business of the Company and shall not
during the term of this Agreement be engaged (whether or not during normal
business hours) in any other business or professional activity, whether or not
such activity is pursued for gain, profit or other pecuniary advantage, unless
the Board of Directors of the Company approves of such activities prior to the
Executive's engaging in them; but this shall not be construed as preventing the
Executive from (1) investing his personal assets in businesses which do not
compete with the Company in such form or manner as will not require any services
on the part of the Executive in the operation or the affairs of the companies in
which such investments are made and in which his participation is solely that of
an investor, (2) purchasing securities in any corporation whose securities are
regularly traded provided that such purchase shall not result in his
collectively owning beneficially at any time one (1%) percent or more of the
equity securities of any corporation engaged in a business competitive to that
of the Company, and (3) participating in conferences, preparing or publishing
papers or books or teaching, so long as the Chief Executive Officer of the
Company approves of such activities prior to the Executive's engaging in them.

          (b)  Prior to commencing any activity described in subparagraph 3(a)
above, the Executive shall inform the Board of Directors of the Company in
writing of such activity.

     6. DISCLOSURE OF INFORMATION. (a) The Executive represents and warrants 
to the Company that Exhibit A hereto sets forth (i) all rights, in respect of 
the Executive's engaging in any business activity (whether or not for 
profit), of former employers, clients, principals, partners or others with 
whom or for whom the Executive has performed services since January 1, 1986, 
and (ii) all of the 



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business activities (whether or not for profit) of the Executive applicable 
to periods after the time such services were performed.

          (b)  The Executive recognizes and acknowledges that the Company's or
subsidiary trade secrets and proprietary information and processes, as they may
exist from time to time, are valuable, special unique assets of the Company's
business, access to and knowledge of which are essential to the performance of
the Executive's duties hereunder. The Executive will not, during or after the
term of his employment with the Company, in whole or in part, disclose such
secrets, information or processes to any person, firm, corporation, association
or other entity for any reason or purpose whatsoever, nor shall the Executive
make use of any such property for his own purposes or the benefit of any person,
firm, corporation, association or other entity (except the Company) under any
circumstances during the term of his employment, provided that after the term of
his employment these restrictions shall not apply to such secrets, information
and processes which are then in the public domain (provided that the Executive
was not responsible, directly or indirectly, for such secrets, information or
processes entering the public domain without the Company's consent). The
Executive agrees to hold as the Company's property, all memoranda, books,
papers, letters, formulas and other data, and all copies thereof and therefrom,
in any way relating to the Company's business and affairs, whether made by him
or otherwise coming into his possession, and on termination of his employment,
or on demand of the Company, at any time, to deliver the same to the Company.

     In addition to this Agreement, the Executive agrees to execute and deliver
to the Company a CNS Compressor Corporation Employee Confidential Information
and Inventions Agreement which agreement is incorporated herein by reference.

     7.   The Executive hereby sells, transfers and assigns to the Company or to
any person, or entity designated by the Company, all of the entire right, title
and interest of the Executive in and to all inventions, ideas, disclosures and
improvements, whether patented or unpatented, and copyrightable material, made
or conceived by the Executive, solely or jointly, or in whole or in part, during
or before the terms hereof (but after December 11, 1991) which (i) related to
methods, apparatus, designs, products, processes or devices sold, leased, used
or under construction or development by the Company or any subsidiary or (ii)
otherwise relate or pertain to the business, functions or operations of the
Company or any subsidiary. The Executive shall communicate promptly and disclose
to the Company, in such form as the Company requests, all information, details
and data pertaining to the aforementioned inventions, ideas, disclosures and
improvements; and, whether during the term hereof or thereafter, the Executive
shall execute and deliver to the Company such formal transfers and assignments
and such other papers and documents as may be required 



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of the Executive to permit the Company or any person or entity designated by 
the Company to file and prosecute the patent application and, as to 
copyrightable material, to obtain copyright thereon. Any invention by the 
Executive within three (3) years following the termination of this Agreement 
shall be deemed to fall within the provisions of this paragraph unless proved 
by the Executive to have been first conceived and made following such 
termination.

     8. COVENANT NOT TO COMPETE. (a) During the term hereof and, unless this
Agreement is terminated pursuant to Section 2(d) hereof, for a period of two (2)
years thereafter, the Executive shall not compete, directly or indirectly, with
the Company or any subsidiary, interfere with, disrupt or attempt to disrupt the
relationship, contractual or otherwise, between the Company and any customer,
client, supplier, consultant or employee of the Company, including, without
limitation, employing or being an investor (representing more than a one (1%)
percent equity interest) in, or an officer, director or consultant to, any
person or entity which employs any former key or technical employee whose
employment with the Company was terminated after the date which is one (1) year
prior to the date of termination of the Executive's employment therewith. An
activity competitive with an activity engaged in by the Company shall mean
performing services (whether as an employee, officer, consultant, director,
partner or sole proprietor) for any person or entity engaged in the business
then engaged in by the Company, which services involve (i) developing joint
selling alliances, and (ii) developing and implementing market plans involving
lead generation, responses to proposals, closing strategies, pricing strategies,
and promotions.

          (b)  It is the desire and intent of the parties that the provisions of
this Section 8 shall be enforced to the fullest extent permissible under the
laws and public policies applied in any jurisdiction in which enforcement is
sought. Accordingly, if any particular portion of this Section 8 shall be
adjudicated to be invalid or unenforceable, this Section 8 shall be deemed
amended to delete therefrom the portion thus adjudicated to be invalid or
unenforceable, such deletion to apply only with respect to the operation of this
Section in the particular jurisdiction in which such adjudication is made.

          (c)  Nothing in this Section 8 shall reduce or abrogate the
Executive's obligations during the term of this Agreement under Sections 4 and 5
hereof.

     9.   REMEDIES. If there is a breach or threatened breach of the provisions
of Section 5, 6(b), 7 or 8 of this Agreement, the Company shall be entitled to
an injunction restraining the Executive from such breach. Nothing herein shall
be construed as prohibiting the Company from pursuing any other remedies for
such breach or threatened breach.



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     10.  INSURANCE. The Company may, at its election and for its benefit,
insure the Executive against accidental loss or death and the Executive shall
submit to such physical examination and supply such information as may be
required in connection therewith.

     11.  ASSIGNMENT. This Agreement may not be assigned by any party hereto,
provided that the Company may assign this Agreement: (a) to an affiliate so long
as such affiliate assumes the Company's obligations hereunder provided that no
such assignment shall discharge the Company of its obligations herein, or (b) in
connection with a merger or consolidation involving the Company or a sale of
substantially all its assets to the surviving corporation or purchaser as the
case may be, so long as such assignee assumes the Company's obligations
hereunder.

     12.  NOTICES. Any notice required or permitted to be given under this
Agreement shall be sufficient if in writing and sent by registered mail to the
Executive at his residence at 1426 Gleneagles Way, Rockledge, FL 32955, or to
the Company at its address set forth above, Attention: Arnold J. Ryden, Board
Chairman.

     In the event the Executive or Company change their respective addresses for
the purpose of giving notice hereunder, they shall advise the other in writing.

     13.  WAIVER OF BREACH. A waiver by the Company or the Executive of a breach
of any provision of this Agreement by the other party shall not operate or be
construed as a waiver of any subsequent breach by the other party.

     14.  ENTIRE AGREEMENT. This instrument contains the entire agreement of the
parties. It may be changed only by an agreement in writing signed by the party
against whom enforcement of any waiver, change, modification, extension or
discharge is sought.

     IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of
the day and year first hereinabove written.


                                       CNS COMPRESSOR CORPORATION


                                       By
                                          --------------------------------
                                          A.J. Ryden
                                          Its Chairman


                                       By
                                         ---------------------------------
                                          Thomas C. Edwards





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                                    EXHIBIT A

     I represent that I have indicated on this Exhibit A (i) all rights, in
respect of my engaging in any business activity (whether or not for profit), of
former employers, clients, principals, partners or others with whom or for whom
I have performed services since January 1, 1986, and (ii) all of the business
activities (whether or not for profit) of mine applicable to periods after the
time such services were performed.

                         BRIEF DESCRIPTION OF ACTIVITIES

                                  - Corporate -

March 1985 - 19 January 1991: Member, Board of Directors, the Rovac Corporation.

March 1985 - 2 February 1990: Product Design Office Director, the Rovac Corp.;
Engineering applications involving the use of the Rovac roller-constrained vane
gas-handling machine.

3 February 1990 - Present: Chairman of the Board of Directors, INNOVATION
Technologies, Inc.

3 February 1990 - Present: CEO of INNOVATION Technologies, Inc.; Inventing,
patenting, designing, analyzing, building, and testing of advanced anti-friction
compressor/expander devices; ITI originally conceived as a platform for
technical consulting and business counseling.

                                 - Consulting -

February - March 1990: Prime Mfg. Co., Inc., Milwaukee WS; Technical consulting
regarding manufacturing design of Rovac roller-constrained refrigerant
compressor for roof-top locomotive air conditioning systems.

February - April 1990: Autocam Corp., Grand Rapids MI; Technical consulting
regarding manufacturing design of Rovac roller-constrained refrigerant
compressor for automotive air conditioners; bench test system design.

April 1990: DGI, Inc., Farmingdale NY; Technical consulting regarding
comparative energy performance of various air conditioning thermodynamic cycles;
conceptual system design.

 
                           BRIEF DESCRIPTION OF RIGHTS

March 1985 - 2 February 1990/The Rovac Corp.: No blanket rights were issued 
to Rovac*; however, specific rights were to be granted regarding a Rankine 
power system patent in return for converting/issuing Rovac common stock to 
Edwards. Transaction never completed by Rovac. Rights of Edwards in respect 
to Rovac activities are presumed to be inconsequential because rights 
generated during Rovac activities are not required by INNOVATION 
Technologies, Inc./CNS Compressor Corporation.






Rights to advanced CNS machine technology were generated after employment with
Rovac was terminated. Contents of first current Edwards patent application
generated more than a month after Rovac employment.

February - March 1990/Prime Mfg. Co., Inc.: Engineering activity confined to the
Rovac roller-constrained vane compressor; no rights were generated or solicited.

February - April 1990/Autocam Corp.: Engineering activity confined to the Rovac
roller-constrained vane compressor; no rights were generated or solicited.

April 1990/DGI, Inc.: content of engineering consulting services confined to
conventional analysis of well-known air conditioning thermodynamic cycles. No
rights generated or solicited.

















- -------------------------
*  On two occasions (1985 and 1988), formal employment contracts that would have
   involved issuing/transferring patent rights were submitted to Rovac's CEO. On
   both occasions, the Rovac CEO rejected negotiations for such rights.


Dated  Jan. 14, 1992.                     /s/ [ILLEGIBLE]
      ---------------                   ------------------------------
                                        Executive




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