|
The ornamental design for an air to air heat exchanger, as shown and described. |
FIG. 1 is a front and right side perspective view of an air to air heat exchanger showing our new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a front elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a left side elevational view;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a front and right side perspective view thereof on a reduced scale, shown in use, the broken line showing of environmental structure is for illustrative purposes only and forms no part of the claimed design.
Chagnot, Catherine J., Kinzelman, Craig J., Colah, Noshir D., Dewar, Harry
Patent | Priority | Assignee | Title |
8151568, | Oct 13 2008 | Qnergy Inc | Stirling engine systems, apparatus and methods |
8256497, | May 04 2006 | Thermal energy exchanger | |
8559197, | Oct 13 2008 | Qnergy Inc | Electrical control circuits for an energy converting apparatus |
8869529, | Oct 13 2008 | Qnergy Inc | Stirling engine systems, apparatus and methods |
D380533, | Jan 11 1996 | Electrolux Home Products, Inc | Integrated compact air conditioner |
D536773, | Mar 04 2005 | Housely Industries Limited | Panel heater |
D545420, | May 03 2005 | DKB HOUSEHOLD SWITZERLAND AG | Burner housing for gas heater |
D805627, | Dec 18 2015 | Montgomery Patent and Design, LP. | Vent cover |
D805628, | Dec 18 2015 | Vent cover | |
ER9866, |
Patent | Priority | Assignee | Title |
2807258, | |||
3768233, | |||
3819244, | |||
3838579, | |||
4093435, | Nov 23 1973 | Wing Industries Inc. | Total heat energy exchangers |
4188993, | Jun 09 1977 | Thermal Transfer Division of Kleinewefers | Heat recovery systems |
4426853, | Jan 26 1981 | Tokyo Shibaura Denki Kabushiki Kaisha | Air conditioning system |
4429735, | Nov 07 1978 | Mitsubishi Denki Kabushiki Kaisha | Simplified air conditioner |
4473108, | Feb 09 1981 | Flakt Aktiebolag | Heat exchangers |
4491171, | Jul 29 1980 | Firma Wilhelm Gebhardt GmbH | Regenerator with a rotating regenerative heat exchanger |
4497361, | Jun 15 1981 | Regenerative heat and humidity exchanging apparatus | |
4513807, | Apr 29 1983 | The United States of America as represented by the Secretary of the Army | Method for making a radial flow ceramic rotor for rotary type regenerator heat exchange apparatus: and attendant ceramic rotor constructions |
4542782, | Feb 28 1983 | Rotary-type heat exchanger | |
4594860, | Sep 24 1984 | ADVANCED THERMAL TECHNOLOGIES, INC | Open cycle desiccant air-conditioning system and components thereof |
4596284, | Oct 25 1983 | LTG Lufttechnische GmbH | Regenerative heat recapturing device |
4646817, | Dec 19 1985 | Del-Air Systems Ltd. | Air to air heat exchanger |
4688626, | Jun 28 1984 | Ventilator unit | |
4711293, | Aug 28 1986 | Kabushiki Kaisha Toshiba | Ventilator of the heat exchange type |
4727931, | Mar 08 1985 | Air exchanging apparatus and method | |
5070934, | May 30 1988 | SIEGENIA-FRANK KG, A LIMITED PARTNERSHIP OF GERMANY | Ventilation device with heat recovery |
173790, | |||
GB748311, |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Jul 12 1990 | CHAGNOT, CATHERINE J | STIRLING TECHNOLOGY, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 005405 | /0662 | |
Jul 12 1990 | KINZELMAN, CRAIG J | STIRLING TECHNOLOGY, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 005405 | /0662 | |
Jul 12 1990 | COLAH, NOSHIR D | STIRLING TECHNOLOGY, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 005405 | /0662 | |
Jul 17 1990 | DEWAR, HARRY | STIRLING TECHNOLOGY, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 005405 | /0662 | |
Jul 23 1990 | Stirling Technology, Inc. | (assignment on the face of the patent) | / |
Date | Maintenance Fee Events |
Date | Maintenance Schedule |