Patent US3147802A successfully refreshed from Google Patents.
US3147802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat radiator
Assignee: Astro Dynamics Inc
•
Filing: 1961-08-04
•
Granted: 1964-09-08
•
Expires: 1981-08-04
Abstract
No abstract record available.
Inventors
- 👤 Katz Leonhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:11
CPC Classifications
F; F28; F28F; F28F1/00; F28F1/10; F28F1/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A HEAT RADIATOR CONSTITUED BY A SINGLE H-SHAPED PIECE OF HEAT-CONDUCTIVE MATERIAL INCLUDING A PAIR OF PARALLEL LEG PLATES HAVING CENTRAL PORTIONS CONNECTED BY A TRANSVERSE THERMAL BUS BAR, EACH OF SAID PLATES HAVING A PLURALITY OF PARALLEL FINS EXTENDING TRANSVERSELY THEREFROM AT OPPOSITE SIDES THEREOF, EACH OF SAID FINS HAVING ONLY ONE FLANGE, EACH FLANGE TERMINATING AND EXTENDING TRANSVERSELY FROM ITS FIN IN A PLANE PARALLEL TO THE ASSOCIATED PLATE, SAID BUS BAR HAVING MEANS FOR MOUNTING A HEAT GENERATING ELEMENT THEREON IN HEAT CONDUCTIVE CONTACT THEREWITH, WHEREBY OPTIMUM DISSIPATION OF HEAT FROM SAID ELEMENT IS AC-
Claim 2
Dependent Claim
98 words
A HEAT RADIATOR CONSTITUED BY A SINGLE H-SHAPED PIECE OF HEAT-CONDUCTIVE MATERIAL INCLUDING A PAIR OF PARALLEL LEG PLATES HAVING CENTRAL PORTIONS CONNECTED BY A TRANSVERSE THERMAL BUS BAR, EACH OF SAID PLATES HAVING A PLURALITY OF PARALLEL FINS EXTENDING TRANSVERSELY THEREFROM AT OPPOSITE SIDES THEREOF, EACH OF SAID FINS HAVING ONLY ONE FLANGE, EACH FLANGE TERMINATING AND EXTENDING TRANSVERSELY FROM ITS FIN IN A PLANE PARALLEL TO THE ASSOCIATED PLATE, SAID BUS BAR HAVING MEANS FOR MOUNTING A HEAT GENERATING ELEMENT THEREON IN HEAT CONDUCTIVE CONTACT THEREWITH, WHEREBY OPTIMUM DISSIPATION OF HEAT FROM SAID ELEMENT IS AC-
References Cited (Backward Citations)
US711446A
Cited
US755399A
Cited
US1909708A
Cited
GB436656A
Cited
US2388532A
Cited
US2343387A
Cited
US2681164A
Cited
US2799481A
Cited
GB768103A
Cited
US2806187A
Cited
US2935664A
Cited
US2984774A
Cited
US2947957A
Cited
US2984457A
Cited
US2965819A
Cited
US2992538A
Cited
US3081824A
Cited
US3058020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |