US3585812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle air conditioning system
Assignee: LOUIS W PARKER TRUSTEE
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Filing: 1970-01-27
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Granted: 1971-06-22
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Expires: 1990-01-27
Abstract
Abstract An expansible enclosure, containing a freezable liquid, is disposed across the exterior metal top of a vehicle. Freon lines extend from a conventional air conditioning unit, located within the vehicle, through the freezable liquid for freezing the liquid within said container during operation of said unit. An automatic control system controls freon flow through the conventional air conditioning unit and through said freezable liquid, and also controls operation of a fan motor associated with the conventional unit and a blower unit associated with the freezable liquid portion of the system.
Inventors
- 👤 Louis W Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:11
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/32
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
162 words
An air conditioning system for use in a vehicle having a passenger compartment bounded in part by an extended structural surface comprising a portion of the body of said vehicle, said system including a liquidtight container having flexible walls, said container being fastened to and supported by the exterior side of said structural surface adjacent to said passenger compartment, the wall of said container which is in abutment with said exterior side conforming in shape to the shape of said structural surface, a freezable liquid in said container, tubing means within said container immersed in said freezable liquid and positionally spaced from the exterior side of said structural surface, means for circulating a refrigerant through said tubing means to cool said liquid toward its freezing point thereby to lower the temperature of said structural surface causing it to act as an extended cooling surface, and means for circulating air along the interior side of said structural surface and through said passenger compartment.
Claim 2
Dependent Claim
162 words
An air conditioning system for use in a vehicle having a passenger compartment bounded in part by an extended structural surface comprising a portion of the body of said vehicle, said system including a liquidtight container having flexible walls, said container being fastened to and supported by the exterior side of said structural surface adjacent to said passenger compartment, the wall of said container which is in abutment with said exterior side conforming in shape to the shape of said structural surface, a freezable liquid in said container, tubing means within said container immersed in said freezable liquid and positionally spaced from the exterior side of said structural surface, means for circulating a refrigerant through said tubing means to cool said liquid toward its freezing point thereby to lower the temperature of said structural surface causing it to act as an extended cooling surface, and means for circulating air along the interior side of said structural surface and through said passenger compartment.
Claim 3
Dependent Claim
20 words
The system of claim 1 wherein said structural surface comprises the metal top overlying the passenger compartment of said vehicle.
Claim 4
Dependent Claim
26 words
The system of claim 2 including fins extending from the interior side of said metal top for increasing the effective radiating area of said interior side.
Claim 5
Dependent Claim
43 words
The system of claim 2 including means defining an air duct directly below the interior side of said metal top, said means for circulating air including blower means for forcing air through said duct and past the interior side of said metal top.
Claim 6
Dependent Claim
36 words
The system of claim 4 including a surface of porous material below said duct forming the interior ceiling of said passenger compartment, said circulating means causing air from said duct to diffuse through said porous material.
Claim 7
Dependent Claim
18 words
The system of claim 1 wherein all the walls of said container are fabricated of a flexible material.
Claim 8
Dependent Claim
36 words
The system of claim 1 including a layer of insulating material overlying said container, said insulating layer extending into engagement with the exterior side of said structural surface and forming a rigid top covering said container.
Claim 9
Dependent Claim
66 words
The system of claim 1 including a refrigerant evaporator unit directly communicating with the passenger compartment of said vehicle, said circulating means including means for simultaneously circulating refrigerant through both said evaporator unit and through the tubing means in said container, and control means for interrupting the flow of refrigerant through said evaporator unit thereby to cause said refrigerant to circulate through said tubing means only.
Claim 10
Dependent Claim
41 words
The system of claim 8 wherein said control means includes thermostat means responsive to the temperature adjacent the interior side of said structural surface, and electrically operable valve means responsive to said thermostat means for controlling the flow of said refrigerant.
Claim 11
Dependent Claim
52 words
The system of claim 9 wherein said circulating means includes an electrically energizable blower, said evaporator unit including an electrically energizable fan, and circuit means coupled to said thermostat means for controlling the energization of said blower and fan in dependence upon the temperature adjacent the interior side of said structural surface.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-21 | 1974-12-21 | 1975-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-21 | 1978-12-21 | 1979-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-21 | 1982-12-21 | 1983-06-22 | $7700.00 | Window Closed / Lapsed |