Patent US3291648A successfully refreshed from Google Patents.
US3291648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multistage thermoelectric device
Assignee: FRIGISTOR LAB Ltd
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Filing: 1963-05-09
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Granted: 1966-12-13
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Expires: 1983-05-09
Abstract
No abstract record available.
Inventors
- 👤 Sheard Anthony Robert
- 👤 Gelbtuch Adam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:06
CPC Classifications
H; H10; H10N; H10N19/00; H10N19/101; F; F25; F25B; F25B21/00; F25B21/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A THERMOELECTRIC DEVICE COMPRISING A PLURALITY OF THERMOELECTRIC COOLING ELEMENTS ARRANGED IN FIRST AND SECOND LINKING CHAINS AND FIRST AND SECOND TERMINAL CHAINS, EACH SAID CHAIN COMPRISING THERMOELEMENTS OF ONE CONDUCTIVITY TYPE; THERMOELEMENTS OF THE OPPOSITE CONDUCTIVITY TYPE ALTERNATING WITH THE SAID THERMOELEMENT OF SAID ONE TYPE; THERMALLY AND ELECTRICALLY CONDUCTING BRIDGES CONNECTING ADJACENT THERMOELEMENTS SUCH THAT SAID BRIDGES ARE ON ALTERNATE SIDES OF SAID CHAIN WHEREBY TO PROVIDE A PLURALITY OF HOT JUNCTIONS ON ONE SIDE OF EACH SAID CHAIN AND A PLURALITY OF COLD JUNCTION BRIDGE CONNECTED TO AT THERMOSAID CHAIN, ONE COLD JUNCTION BRIDGE CONNECTED TO A THERMOELEMENT OF ONE CONDUCTIVITY TYPE OF SAID FIRST LINKING CHAIN AND A THERMOELEMENT OF THE OPPOSITE CONDUCTIVITY TYPE IN SAID SECOND LINKING CHAIN AND A THERMOELEMENT OF THE ONE CONDUCTIVITY TYPE OF SAID FIRST TERMINAL CHAIN, A SECOND COLD JUNCTION BRIDGE CONNECTED TO A THERMOELEMENT OF SAID OPPOSITE CONDUCTIVITY TYPE IN SAID FIRST LINKING CHAIN AND A THERMOELEMENT OF SAID ONE CONDUCTIVITY TYPE IN SAID SECOND LINKING CHAIN AND A THERMOELEMENT OF SAID OPPOSITE CONDUCTIVITY TYPE IN SAID SECOND TERMINAL CHAIN.
Claim 2
Dependent Claim
181 words
A THERMOELECTRIC DEVICE COMPRISING A PLURALITY OF THERMOELECTRIC COOLING ELEMENTS ARRANGED IN FIRST AND SECOND LINKING CHAINS AND FIRST AND SECOND TERMINAL CHAINS, EACH SAID CHAIN COMPRISING THERMOELEMENTS OF ONE CONDUCTIVITY TYPE; THERMOELEMENTS OF THE OPPOSITE CONDUCTIVITY TYPE ALTERNATING WITH THE SAID THERMOELEMENT OF SAID ONE TYPE; THERMALLY AND ELECTRICALLY CONDUCTING BRIDGES CONNECTING ADJACENT THERMOELEMENTS SUCH THAT SAID BRIDGES ARE ON ALTERNATE SIDES OF SAID CHAIN WHEREBY TO PROVIDE A PLURALITY OF HOT JUNCTIONS ON ONE SIDE OF EACH SAID CHAIN AND A PLURALITY OF COLD JUNCTION BRIDGE CONNECTED TO AT THERMOSAID CHAIN, ONE COLD JUNCTION BRIDGE CONNECTED TO A THERMOELEMENT OF ONE CONDUCTIVITY TYPE OF SAID FIRST LINKING CHAIN AND A THERMOELEMENT OF THE OPPOSITE CONDUCTIVITY TYPE IN SAID SECOND LINKING CHAIN AND A THERMOELEMENT OF THE ONE CONDUCTIVITY TYPE OF SAID FIRST TERMINAL CHAIN, A SECOND COLD JUNCTION BRIDGE CONNECTED TO A THERMOELEMENT OF SAID OPPOSITE CONDUCTIVITY TYPE IN SAID FIRST LINKING CHAIN AND A THERMOELEMENT OF SAID ONE CONDUCTIVITY TYPE IN SAID SECOND LINKING CHAIN AND A THERMOELEMENT OF SAID OPPOSITE CONDUCTIVITY TYPE IN SAID SECOND TERMINAL CHAIN.
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) | 1969-12-12 | 1970-06-13 | 1970-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-12 | 1974-06-13 | 1974-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-12 | 1978-06-13 | 1978-12-13 | $7700.00 | Window Closed / Lapsed |