Patent US3765354A successfully refreshed from Google Patents.
US3765354A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Life support system with a hull heat exchanger
Assignee: United States Department of the Navy
•
Filing: 1972-10-24
•
Granted: 1973-10-16
•
Expires: 1992-10-24
Abstract
Abstract A life support system with a heat exchanger cooling system comprising a heat exchanger located below a false floor in the cabin of the life support system and a heat exchanger located in the crew compartment. The heat exchanger cooling system further comprises a cabin heat exchanger with a bypass hull heat exchanger. A circulation system is provided for the three heat exchangers. Heat for the vehicle is provided by the electrical components and a supplementary heater if required.
Inventors
- 👤 C Gronroos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 21:25
CPC Classifications
B; B63; B63G; B63G8/00; B63G8/36
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
126 words
In combination with a cooling component control device for a submersible vehicle life support system wherein said system includes a cabin hull and a false floor and first and second heat exchangers located in said cabin hull, the improvement comprises: a. a third heat exchanger located adjacent to the hull wall of said cabin; b. a means for directing air from said second heat exchanger to said hull wall; c. a means for insulating said cabin from said hull wall; d. said insulating material being separated from said hull wall to form an air path area therebetween; e. said directing means connected to said air path area whereby the air from said second heat exchanger is directed by said directing means into said air path area.
Claim 2
Dependent Claim
126 words
In combination with a cooling component control device for a submersible vehicle life support system wherein said system includes a cabin hull and a false floor and first and second heat exchangers located in said cabin hull, the improvement comprises: a. a third heat exchanger located adjacent to the hull wall of said cabin; b. a means for directing air from said second heat exchanger to said hull wall; c. a means for insulating said cabin from said hull wall; d. said insulating material being separated from said hull wall to form an air path area therebetween; e. said directing means connected to said air path area whereby the air from said second heat exchanger is directed by said directing means into said air path area.
Claim 3
Dependent Claim
23 words
The device recited in claim 1 wherein said insulated area is further divided by a plurality of continuous connected air directing flow channels.
Claim 4
Dependent Claim
18 words
The device recited in claim 2 wherein said insulated area extends over the lower portion of the cabin.
Claim 5
Dependent Claim
19 words
The device recited in claim 2 wherein said air path area is connected to an air flow exhaust port.
Claim 6
Dependent Claim
15 words
The device recited in claim 4 wherein said exhaust port is vented into the cabin.
Claim 7
Dependent Claim
49 words
The device recited in claim 1 wherein said means for directing air comprises a first air channel, a second air channel separated by a two position air directing gate, said first heat exchanger being located in said second channel and said hull being connected to said first air channel.
Claim 8
Dependent Claim
53 words
The device recited in claim 1 wherein said second channel has a bypass air channel connected to said first channel whereby the air is directed against said hull when said gate is in the first position and the air is directed to said second channel when said gate is in the second position.
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |