Patent US3264472A successfully refreshed from Google Patents.
US3264472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Track rail snow and ice melter
Assignee: Cleveland Technical Center Inc
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Filing: 1962-09-11
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Granted: 1966-08-02
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Expires: 1982-09-11
Abstract
No abstract record available.
Inventors
- 👤 Lawrence C Simmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:54
CPC Classifications
B; B61; B61L; B61L1/00; B61L1/20; E; E01; E01B; E01B7/00; E01B7/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
203 words
IN A RAILROAD SWITCH INSTALLATION HAVING AN ELONGATED STATIONARY STOCK RAIL AND AN ELONGATED SWITCH POINT MOVABLY MOUNTED SO THAT IT MAY BE MOVED TOWARD AND AWAY FROM SAID STOCK RAIL, THE COMBINATION OF AN ELONGATED SUPPORTING MEMBER EXTENDING LONGITUDINALLY OF AND IN SPACED RELATION TO THE SWITCH POINT ON THE SIDE THEREOF OPPOSITE THE STOCK RAIL, MEANS FOR SUPPORTING SAID ELONGATED SUPPORTING MEMBER FROM SAID SWITCH POINT FOR MOVEMENT THEREWITH, AN ELONGATED REFLECTOR HAVING A CONCAVE SURFACE CAPABLE OF REFLECTING INFRARED RADIATION AND TWO SPACED MARGINAL EDGES, SAID REFLECTOR BEING CARRIED BY SAID ELONGATED SUPPORTING MEMBER WITH ITS MARGINAL CAVE SURFACE FACING SAID SWITCH POINT AND ITS MARGINAL EDGES IN CLOSE PROXIMITY TO THE SIDE OF SAID SWITCH POINT OPPOSITE SAID STOCK RAIL, ELONGATED INFRARED RADIATION PRODUCING MEANS DISPOSED AT THE CONCAVE SIDE OF SAID REFLECTOR TO GENERATE RADIATION WHICH IS REFLECTED ONTO AND HEATS SAID SWITCH POINT, MEANS FOR SUPPLYING ENERGY TO THE SAID RADIATION SOURCE CARRIED BY SAID ELONGATED SUPPORTING MEMBER, AND MEANS PIVOTALLY MOUNTING SAID REFLECTOR ON SAID ELONGATED SUPPORTING MEMBER SO THAT IT MAY BE SWUNG UPWARDLY AWAY FROM SAID SWITCH POINT TO PERMIT ACCESS TO THE CONCAVE SIDE OF SAID REFLECTOR AND TO SAID RADIATION PRODUCING MEANS.
Claim 2
Dependent Claim
203 words
IN A RAILROAD SWITCH INSTALLATION HAVING AN ELONGATED STATIONARY STOCK RAIL AND AN ELONGATED SWITCH POINT MOVABLY MOUNTED SO THAT IT MAY BE MOVED TOWARD AND AWAY FROM SAID STOCK RAIL, THE COMBINATION OF AN ELONGATED SUPPORTING MEMBER EXTENDING LONGITUDINALLY OF AND IN SPACED RELATION TO THE SWITCH POINT ON THE SIDE THEREOF OPPOSITE THE STOCK RAIL, MEANS FOR SUPPORTING SAID ELONGATED SUPPORTING MEMBER FROM SAID SWITCH POINT FOR MOVEMENT THEREWITH, AN ELONGATED REFLECTOR HAVING A CONCAVE SURFACE CAPABLE OF REFLECTING INFRARED RADIATION AND TWO SPACED MARGINAL EDGES, SAID REFLECTOR BEING CARRIED BY SAID ELONGATED SUPPORTING MEMBER WITH ITS MARGINAL CAVE SURFACE FACING SAID SWITCH POINT AND ITS MARGINAL EDGES IN CLOSE PROXIMITY TO THE SIDE OF SAID SWITCH POINT OPPOSITE SAID STOCK RAIL, ELONGATED INFRARED RADIATION PRODUCING MEANS DISPOSED AT THE CONCAVE SIDE OF SAID REFLECTOR TO GENERATE RADIATION WHICH IS REFLECTED ONTO AND HEATS SAID SWITCH POINT, MEANS FOR SUPPLYING ENERGY TO THE SAID RADIATION SOURCE CARRIED BY SAID ELONGATED SUPPORTING MEMBER, AND MEANS PIVOTALLY MOUNTING SAID REFLECTOR ON SAID ELONGATED SUPPORTING MEMBER SO THAT IT MAY BE SWUNG UPWARDLY AWAY FROM SAID SWITCH POINT TO PERMIT ACCESS TO THE CONCAVE SIDE OF SAID REFLECTOR AND TO SAID RADIATION PRODUCING MEANS.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |