Patent US3283520A successfully refreshed from Google Patents.
US3283520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric cooler for oxygen tents
Assignee: McGraw Edison Co
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Filing: 1965-03-30
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Granted: 1966-11-08
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Expires: 1985-03-30
Abstract
No abstract record available.
Inventors
- 👤 Walter A Donohue
- 👤 Norman A Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:57
CPC Classifications
F; F25; F25B; F25B21/00; F25B21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A THERMOELECTRIC COOLER FOR AN OXYGEN TENT COMPRISING A CABINET HAVING INLET AND OUTLET PORTS, A COOLING AIR DUCT IN SAID CABINET BETWEEN SAID PORTS, A HOT AIR DUCT IN SAID CABINET THERMALLY INSULATED FROM SAID COLLING AIR DUCT, A PLURALITY OF THERMOELECTRIC MODULES EACH COMPRISING AT LEAST ONE THERMOELECTRIC ELEMENT AND HEAT EXCHANGERS IN CLOSE THERMAL ASSOCIATION WITH THE HOT AND COLD JUNCTIONS OF SAID ELEMENT, SAID HEAT EXCHANGER AT THE COLD JUNCTION BEING THERMALLY ASSOCIATED WITH SAID COOLING AIR DUCT AND SAID HEAT EXCHANGER AT THE HOT JUNCTION BEING THERMALLY ASSOCIATED WITH SAID HOT AIR DUCT, SAID HEAT EXCHANGERS INCLUDING FINS EXTENDING THROUGH SAID HOT AND COOL AIR DUCTS, A BLOWER FOR CIRCULATING AIR FROM SAID OXYGEN TENT THROUGH SAID COOL AIR DUCT, A SEPARATE BLOWER FOR CIRCULATING ROOM AIR THROUGH SAID HOT AIR DUCT, THE THERMOELECTRIC ELEMENTS OF EACH OF SAID THERMOELECTRIC MODULES BEING CYLINDRICALLY SHAPED AND IN SPACED PARALLEL ARRANGEMENT HAVING OPPOSITE END FACES IN RESPECTIVE PARALLEL PLANES, CONDUCTOR STRAPS ELECTRICALLY CONNECTING THE END FACES OF
Claim 2
Dependent Claim
170 words
A THERMOELECTRIC COOLER FOR AN OXYGEN TENT COMPRISING A CABINET HAVING INLET AND OUTLET PORTS, A COOLING AIR DUCT IN SAID CABINET BETWEEN SAID PORTS, A HOT AIR DUCT IN SAID CABINET THERMALLY INSULATED FROM SAID COLLING AIR DUCT, A PLURALITY OF THERMOELECTRIC MODULES EACH COMPRISING AT LEAST ONE THERMOELECTRIC ELEMENT AND HEAT EXCHANGERS IN CLOSE THERMAL ASSOCIATION WITH THE HOT AND COLD JUNCTIONS OF SAID ELEMENT, SAID HEAT EXCHANGER AT THE COLD JUNCTION BEING THERMALLY ASSOCIATED WITH SAID COOLING AIR DUCT AND SAID HEAT EXCHANGER AT THE HOT JUNCTION BEING THERMALLY ASSOCIATED WITH SAID HOT AIR DUCT, SAID HEAT EXCHANGERS INCLUDING FINS EXTENDING THROUGH SAID HOT AND COOL AIR DUCTS, A BLOWER FOR CIRCULATING AIR FROM SAID OXYGEN TENT THROUGH SAID COOL AIR DUCT, A SEPARATE BLOWER FOR CIRCULATING ROOM AIR THROUGH SAID HOT AIR DUCT, THE THERMOELECTRIC ELEMENTS OF EACH OF SAID THERMOELECTRIC MODULES BEING CYLINDRICALLY SHAPED AND IN SPACED PARALLEL ARRANGEMENT HAVING OPPOSITE END FACES IN RESPECTIVE PARALLEL PLANES, CONDUCTOR STRAPS ELECTRICALLY CONNECTING THE END FACES OF
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |