3 patents
Utility
Corrugated Tube-in-tube Heat Exchangers
10 Jun 20
A heat exchanger has an outer tube and an inner tube extending through a lumen of the outer tube.
Michael A. Garrabrant
Filed: 6 Jul 17
Utility
Electronic Expansion Valves Having Multiple Orifice Plates
10 Jun 20
An electronic expansion valve (EEV) is operated by a motor controlling a variable restriction valve in which a liquid refrigerant enters at a high pressure and exits at a reduced pressure.
Michael A. Garrabrant, Roger E. Stout, Christopher M. Keinath, Matthew C. Blaylock, Paul E. Glanville
Filed: 6 Jul 17
Utility
Hybrid Fossil Fuel-electric Multi-function Heat Pump
20 Nov 19
A multi-function heating and cooling device, comprising components for an ambient air-coupled sorption heat pump cycle and vapor compression cooling cycle integrated together inside a single enclosure is proposed.
Michael A. Garrabrant
Filed: 3 Jan 18
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