US3361905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Movable block vehicle speed control system
Assignee: Westinghouse Air Brake Co
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Filing: 1966-01-18
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Granted: 1968-01-02
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Expires: 1986-01-18
Abstract
No abstract record available.
Inventors
- 👤 George W Baughman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:49
CPC Classifications
B; B61; B61L; B61L3/00; B61L3/16; B61L3/22; B61L3/24; B61L3/243; B61L21/00; B61L21/10; B61L23/00; B61L23/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
337 words
A VEHICLE SPEED CONTROL SYSTEM FOR USE ALONG A WAY CHARACTERIZED BY THE PRESENCE OF A SERIES OF CONSECUTIVE VEHICLE SPEED CONTROL SECTIONS AND WHERE EACH OF THE VEHICLE OPERATING WITHIN THE SYSTEM HAS A VEHICLE SPEED COMMAND RECEIVER AND A VEHICLE SPEED RESPONSIVE TRANSMITTER WHICH HAS AN OUTPUT SIGNAL WHICH IS EFFECTIVE IN THE CONTROL OF FOLLOWING VEHICLE AND WHICH OUTPUT SIGNALIN IS ALWAYS INDICATIVE OF A MORE RESTRICTIVE VEHICLE SPEED COMMAND THAT ANY VEHICLE SPEED COMMOND RECEIVED BY SAID VEHICLE SPEED COMMAND RECEIVER, (A) SAID CONTROL SECTIONS BEING DIFINED BY A PLURALITY OF SPACED APART VEHICLE CONTROL MEANS, (B) EACH OF SAID VEHICLE CONTROL MEANS INCLUDING (1) A VEHICLES DISTANCE MEASURING MEANS HAVING AN OUTPUT WHICH IS INDICATIVE OF THE DISTANCE TO THE VEHICLE NEAREST THE VEHICLE CONTROL MEANS WHICH INCLUDES SAID VEHICLE DISTANCE MEASURING MEANS, (2) A VEHICLE DETECTION SIGNAL SOURCE WHICH VARIES IN CHARACTER FROM ANY ONE CONTROL MEANS TO THE NEXT ADJAENT CONTROL MEANS, (3) A WAYSIDE RECEIVER HAVING AN OUTPUT INDICATIVE OF SAID OUTPUT SIGNAL RECEIVED FROM SAID VEHICLE SPEED RESPONSIVE TRANSMITTER WHEN A VEHICLE HAS JUST PASSED ANY ONE OF SAID WAYSIDE RECEIVERS AND IS OCCUPYING THE ADJACENT CONTROL SECTION ENTERED, (4) A WAYSIDE VARIABLE SIGNAL TRANSMITTER WHICH HAS AN OUTPUT SIGNAL WHICH IS RECEIVED BY THE VEHICLE SPEED COMMAND RECEIVER AND CONTROLS SAID VEHICLE''S SPEED ENTERING THE PRECEDING VEHICLE CONTROL SECTION, (C) A PAIR OF VEHICLE DETECTION MEANS POSITIONED INTERMEDIATE THE ENDS OF EACH VEHICLE CONTROL SECTION, (1) ONE OF SAID PAIR VEHICLE DETECTORS ENERGIZED BY THE VEHICLE DETECTION SIGNAL SOURCE OF THE PRECEDING VEHICLE CONTROL MEANS AND THE OTHER OF WHICH IS ENERGIZED BY THE VEHICLE DETECTION SIGNAL SOURCE OF THE NEXT SUCCEEDING VEHICLE CONTROL MEANS, (2) SAID PAIR OF VEHICLE DETECTION MEANS, EACH HAVING AN OUTPUT WHICH IS CONTROLLED BY THE PASSAGE OF SAID VEHICLE THROUGH SAID CONTROL SECTION, (D) SAID WAYSIDE VARIABLE SIGNAL TRANSMITTER OUTPUT SIMULTANEOUSLY CONTROLLED BY SAID OUTPUTS FROM SAID VEHICLE DISTANCE MEASURING MEANS, SAID WAYSIDE RECEIVER AND SAID PAIR OF VEHICLE DETECTION MEANS.
Claim 2
Dependent Claim
337 words
A VEHICLE SPEED CONTROL SYSTEM FOR USE ALONG A WAY CHARACTERIZED BY THE PRESENCE OF A SERIES OF CONSECUTIVE VEHICLE SPEED CONTROL SECTIONS AND WHERE EACH OF THE VEHICLE OPERATING WITHIN THE SYSTEM HAS A VEHICLE SPEED COMMAND RECEIVER AND A VEHICLE SPEED RESPONSIVE TRANSMITTER WHICH HAS AN OUTPUT SIGNAL WHICH IS EFFECTIVE IN THE CONTROL OF FOLLOWING VEHICLE AND WHICH OUTPUT SIGNALIN IS ALWAYS INDICATIVE OF A MORE RESTRICTIVE VEHICLE SPEED COMMAND THAT ANY VEHICLE SPEED COMMOND RECEIVED BY SAID VEHICLE SPEED COMMAND RECEIVER, (A) SAID CONTROL SECTIONS BEING DIFINED BY A PLURALITY OF SPACED APART VEHICLE CONTROL MEANS, (B) EACH OF SAID VEHICLE CONTROL MEANS INCLUDING (1) A VEHICLES DISTANCE MEASURING MEANS HAVING AN OUTPUT WHICH IS INDICATIVE OF THE DISTANCE TO THE VEHICLE NEAREST THE VEHICLE CONTROL MEANS WHICH INCLUDES SAID VEHICLE DISTANCE MEASURING MEANS, (2) A VEHICLE DETECTION SIGNAL SOURCE WHICH VARIES IN CHARACTER FROM ANY ONE CONTROL MEANS TO THE NEXT ADJAENT CONTROL MEANS, (3) A WAYSIDE RECEIVER HAVING AN OUTPUT INDICATIVE OF SAID OUTPUT SIGNAL RECEIVED FROM SAID VEHICLE SPEED RESPONSIVE TRANSMITTER WHEN A VEHICLE HAS JUST PASSED ANY ONE OF SAID WAYSIDE RECEIVERS AND IS OCCUPYING THE ADJACENT CONTROL SECTION ENTERED, (4) A WAYSIDE VARIABLE SIGNAL TRANSMITTER WHICH HAS AN OUTPUT SIGNAL WHICH IS RECEIVED BY THE VEHICLE SPEED COMMAND RECEIVER AND CONTROLS SAID VEHICLE''S SPEED ENTERING THE PRECEDING VEHICLE CONTROL SECTION, (C) A PAIR OF VEHICLE DETECTION MEANS POSITIONED INTERMEDIATE THE ENDS OF EACH VEHICLE CONTROL SECTION, (1) ONE OF SAID PAIR VEHICLE DETECTORS ENERGIZED BY THE VEHICLE DETECTION SIGNAL SOURCE OF THE PRECEDING VEHICLE CONTROL MEANS AND THE OTHER OF WHICH IS ENERGIZED BY THE VEHICLE DETECTION SIGNAL SOURCE OF THE NEXT SUCCEEDING VEHICLE CONTROL MEANS, (2) SAID PAIR OF VEHICLE DETECTION MEANS, EACH HAVING AN OUTPUT WHICH IS CONTROLLED BY THE PASSAGE OF SAID VEHICLE THROUGH SAID CONTROL SECTION, (D) SAID WAYSIDE VARIABLE SIGNAL TRANSMITTER OUTPUT SIMULTANEOUSLY CONTROLLED BY SAID OUTPUTS FROM SAID VEHICLE DISTANCE MEASURING MEANS, SAID WAYSIDE RECEIVER AND SAID PAIR OF VEHICLE DETECTION 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) | 1971-01-01 | 1971-07-03 | 1972-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-01 | 1975-07-03 | 1976-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-01 | 1979-07-03 | 1980-01-02 | $7700.00 | Window Closed / Lapsed |