US3194960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Railroad track appliance
Assignee: Blanco Manufacturing Co Inc
•
Filing: 1961-10-30
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Granted: 1965-07-13
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Expires: 1981-10-30
Abstract
No abstract record available.
Inventors
- 👤 John C Tuttle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:49
CPC Classifications
E; E01; E01B; E01B7/00; E01B7/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A DEVICE FOR AUTOMATICALLY PREVENTING THE OCCURRENCE OF FROZEN MOISTURE ON A RAILROAD TRACK, COMPRISING: AN INFRARED GENERATOR; MEANS FOR SUPPORTING THE GENERATOR ABOVE THE TRACK SO AS TO CLEAR RAILROAD TRAINS; MEANS FOR DIRECTING INFRARED RADIATION FROM THE GENERATOR TO THE TRACK; MEANS FOR SENSING TEMPERATURES FAVORABLE TO THE FREEZING OF MOISTURE, AND FOR SIGNALING THE OCCURRENCE THEREOF; MEANS FOR SENSING THE PRESENCE OF MOISTURE AT THE TRACK AND SIGNALING SUCH PRESENCE; AND MEANS RESPONSIVE ONLY TO SIMULTANEOUS SIGNALS FROM BOTH SENSING MEANS FOR STARTING THE GENERATOR.
Claim 2
Independent Claim
88 words
A DEVICE FOR AUTOMATICALLY PREVENTING THE OCCURRENCE OF FROZEN MOISTURE ON A RAILROAD TRACK, COMPRISING: AN INFRARED GENERATOR; MEANS FOR SUPPORTING THE GENERATOR ABOVE THE TRACK SO AS TO CLEAR RAILROAD TRAINS; MEANS FOR DIRECTING INFRARED RADIATION FROM THE GENERATOR TO THE TRACK; MEANS FOR SENSING TEMPERATURES FAVORABLE TO THE FREEZING OF MOISTURE, AND FOR SIGNALING THE OCCURRENCE THEREOF; MEANS FOR SENSING THE PRESENCE OF MOISTURE AT THE TRACK AND SIGNALING SUCH PRESENCE; AND MEANS RESPONSIVE ONLY TO SIMULTANEOUS SIGNALS FROM BOTH SENSING MEANS FOR STARTING THE GENERATOR.
References Cited (Backward Citations)
US1298891A
Cited
US1238861A
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US2717957A
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US2787695A
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US2902669A
Cited
US2985137A
Cited
US3023296A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |