Patent US3164341A successfully refreshed from Google Patents.
US3164341A
Expired / Lapsed
US
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Broken wheel detector for railway cars
Assignee: Individual
•
Filing: 1961-10-17
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Granted: 1965-01-05
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Expires: 1981-10-17
Abstract
No abstract record available.
Inventors
- 👤 Victor H Phillips
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:22
CPC Classifications
B; B61; B61L; B61L1/00; B61L1/02; B61L1/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A SYSTEM FOR INDICATING A BROKEN RAILWAY WHEEL FLANGE, WHICH SYSTEM IS ADAPTED TO BE SECURED TO THE RAILS THAT SUCH WHEELS TRAVERSE, COMPRISING A PLURALITY OF DETECTORS, EACH OF SAID DETECTORS HAVING A NORMALLY CLOSED SWITCH, EACH OF SAID DETECTORS INCLUDING MEANS FOR OPENING ITS RESPECTIVE SWITCH IN RESPONSE TO THE PASSAGE OF EVERY OTHER UNBROKEN WHEEL FLANGE PASSING OVER A PREDETERMINED SECTION OF AT LEAST ONE OF SAID RAILS AND FOR CLOSING SAID SWITCH IN RESPONSE TO THE PASSAGE OF EVERY OTHER UNBROKEN WHEEL FLANGE PASSING OVER SAID SECTION, A VOLTAGE SOURCE AND AN INDICATOR CIRCUIT IN SERIES CIRCUIT WITH EACH OF SAID SWITCHES, SAID INDICATOR CIRCUIT INCLUDING INDICATING MEANS ACTIVATED IN RESPONSE TO OPENING OF ANY OF SAID SWITCHES FOR A PREDETERMINED TIME PERIOD, SAID INDICATOR MEANS INDICATING THE PRESENCE OF A BROKEN WHEEL FLANGE, SAID TIME PERIOD BEING GREATER THAN THE TIME IT NORMALLY TAKES ADJACENT WHEELS ON THE SAME TRUCK TO PASS OVER EACH OF SAID SECTIONS.
Claim 2
Independent Claim
162 words
A SYSTEM FOR INDICATING A BROKEN RAILWAY WHEEL FLANGE, WHICH SYSTEM IS ADAPTED TO BE SECURED TO THE RAILS THAT SUCH WHEELS TRAVERSE, COMPRISING A PLURALITY OF DETECTORS, EACH OF SAID DETECTORS HAVING A NORMALLY CLOSED SWITCH, EACH OF SAID DETECTORS INCLUDING MEANS FOR OPENING ITS RESPECTIVE SWITCH IN RESPONSE TO THE PASSAGE OF EVERY OTHER UNBROKEN WHEEL FLANGE PASSING OVER A PREDETERMINED SECTION OF AT LEAST ONE OF SAID RAILS AND FOR CLOSING SAID SWITCH IN RESPONSE TO THE PASSAGE OF EVERY OTHER UNBROKEN WHEEL FLANGE PASSING OVER SAID SECTION, A VOLTAGE SOURCE AND AN INDICATOR CIRCUIT IN SERIES CIRCUIT WITH EACH OF SAID SWITCHES, SAID INDICATOR CIRCUIT INCLUDING INDICATING MEANS ACTIVATED IN RESPONSE TO OPENING OF ANY OF SAID SWITCHES FOR A PREDETERMINED TIME PERIOD, SAID INDICATOR MEANS INDICATING THE PRESENCE OF A BROKEN WHEEL FLANGE, SAID TIME PERIOD BEING GREATER THAN THE TIME IT NORMALLY TAKES ADJACENT WHEELS ON THE SAME TRUCK TO PASS OVER EACH OF SAID SECTIONS.
References Cited (Backward Citations)
US2831965A
Cited
US3021423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-01-05 | 1968-07-06 | 1969-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-05 | 1972-07-06 | 1973-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-05 | 1976-07-06 | 1977-01-05 | $7700.00 | Window Closed / Lapsed |