US3216205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low loss thermoelectric heat exchanger
Assignee: Tecumseh Products Co
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Filing: 1964-12-31
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Granted: 1965-11-09
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Expires: 1984-12-31
Abstract
No abstract record available.
Inventors
- 👤 Neal P Milligan
- 👤 James P Burgess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:05
CPC Classifications
F; F25; F25B; F25B21/00; F25B21/02; F25B2321/00; F25B2321/02; F25B2321/021; F25B2321/025; F25B2321/0252; F25D; F25D11/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
A COOLING APPARATUS COMPRISING A COOLING CHAMBER AND MEANS FOR TRANSFERRING HEAT FROM SAID COOLING CHAMBER TO AN AMBIENT ENVIRONMENT, SAID HEAT TRANSFERRING MEANS COMPRISING INTERMITTENTLY ENERGIZED THERMOELECTRIC MEANS AND SECONDARY HEAT TRANSFER MEANS, SAID SECONDARY HEAT TRANSFER MEANS REDUCING REVERSE HEAT FLOW IN A PATH THROUGH SAID THERMOELECTRIC MEANS FROM SAID AMBIENT ENVIRONMENT TO SAID COOLING CHAMBER WHEN SAID THERMOELECTRIC MEANS IS NOT ENERGIZED AS COMPARED TO FORWARD HEAT FLOW IN THE SAME PATH FROM SAID COOLING CHAMBER TO THE AMBIENT ENVIRONMENT WHEN SAID THERMOELECTRIC MEANS IS ENERGIZED, SAID SECONDARY HEAT TRANSFER MEANS COMPRISING A DUCT FOR CARRYING A FLUID, A FIRST PORTION OF SAID DUCT COMMUNICATING WITH SAID AMBIENT ENVIRONMENT AND SAID DUCT COMMUNICATING SAID DUCT COMMUNICATING WITH SAID THERMOELECTRIC MEANS, AND MEANS INTERMITTENTLY ENERGIZED CONCURRENTLY WITH ENERGIZATION OF SAID THERMOELECTRIC MEANS TO SELECTIVELY FORCE THE FLUID TO FLOW IN SAID DUCT WHEN SAID THERMOELECTRIC MEANS IS ENERGIZED.
Claim 2
Dependent Claim
150 words
A COOLING APPARATUS COMPRISING A COOLING CHAMBER AND MEANS FOR TRANSFERRING HEAT FROM SAID COOLING CHAMBER TO AN AMBIENT ENVIRONMENT, SAID HEAT TRANSFERRING MEANS COMPRISING INTERMITTENTLY ENERGIZED THERMOELECTRIC MEANS AND SECONDARY HEAT TRANSFER MEANS, SAID SECONDARY HEAT TRANSFER MEANS REDUCING REVERSE HEAT FLOW IN A PATH THROUGH SAID THERMOELECTRIC MEANS FROM SAID AMBIENT ENVIRONMENT TO SAID COOLING CHAMBER WHEN SAID THERMOELECTRIC MEANS IS NOT ENERGIZED AS COMPARED TO FORWARD HEAT FLOW IN THE SAME PATH FROM SAID COOLING CHAMBER TO THE AMBIENT ENVIRONMENT WHEN SAID THERMOELECTRIC MEANS IS ENERGIZED, SAID SECONDARY HEAT TRANSFER MEANS COMPRISING A DUCT FOR CARRYING A FLUID, A FIRST PORTION OF SAID DUCT COMMUNICATING WITH SAID AMBIENT ENVIRONMENT AND SAID DUCT COMMUNICATING SAID DUCT COMMUNICATING WITH SAID THERMOELECTRIC MEANS, AND MEANS INTERMITTENTLY ENERGIZED CONCURRENTLY WITH ENERGIZATION OF SAID THERMOELECTRIC MEANS TO SELECTIVELY FORCE THE FLUID TO FLOW IN SAID DUCT WHEN SAID THERMOELECTRIC MEANS IS ENERGIZED.
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) | 1968-11-08 | 1969-05-10 | 1969-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-08 | 1973-05-10 | 1973-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-08 | 1977-05-10 | 1977-11-09 | $7700.00 | Window Closed / Lapsed |