US3119979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warning light and switch therefor
Assignee: Individual
•
Filing: 1962-04-04
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Granted: 1964-01-28
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Expires: 1982-04-04
Abstract
No abstract record available.
Inventors
- 👤 Martin Willard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:38
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
157 words
AN AUTOMATIC AUTOMOTIVE SAFETY LIGHT FOR WARNING FOLLOWING MOTORISTS OF DECELERATION PRIOR TO BRAKING BY THE OPERATOR OF A VEHICLE COMPRISING AN ELECTRIC SIGNAL LAMP MOUNTED ON SUCH VEHICLE AT THE REAR WINDOW LEVEL FOR VIEWING BY THE FOLLOWING MOTORISTS, AN EXHAUST GAS FLOW OPERATED SWITCH MOUNTED ON THE EXHAUST PIPE FROM SAID VEHICLE''S ENGINE INCLUDING A PAIR OF MAKE AND BREAK CONTACTS CONNECTED TO OPERATE SAID LIGHT, CONTACT OPERATING MEANS INCLUDING A GAS FLOW RESPONSIVE MEMBER CONNECTED TO ONE OF SAID CONTACTS AND RECEIVED IN THE EXHAUST PIPE OF SAID VEHICLE, MEANS MOUNTING SAID MEMBER FOR LIMITED MOVEMENT UPON THE IMPINGEMENT THEREON OF EXHAUST GASES IN A DIRECTION HOLDING SAID CONTACTS OPEN WHEN THE VEHICLE IS OPERATING UNDER POWER, AND BIAS MEANS ON SAID CONTACT OPERATING MEANS HAVING A FORCE ON SAID MEMBERS SUFFICIENT TO CLOSE SAID CONTACTS UPON DECREASE OF EXHAUST GAS FLOW WITH DECELERATION OF SAID VEHICLE FOR THE ILLUMINATION OF SAID SIGNAL LAMP.
Claim 2
Dependent Claim
157 words
AN AUTOMATIC AUTOMOTIVE SAFETY LIGHT FOR WARNING FOLLOWING MOTORISTS OF DECELERATION PRIOR TO BRAKING BY THE OPERATOR OF A VEHICLE COMPRISING AN ELECTRIC SIGNAL LAMP MOUNTED ON SUCH VEHICLE AT THE REAR WINDOW LEVEL FOR VIEWING BY THE FOLLOWING MOTORISTS, AN EXHAUST GAS FLOW OPERATED SWITCH MOUNTED ON THE EXHAUST PIPE FROM SAID VEHICLE''S ENGINE INCLUDING A PAIR OF MAKE AND BREAK CONTACTS CONNECTED TO OPERATE SAID LIGHT, CONTACT OPERATING MEANS INCLUDING A GAS FLOW RESPONSIVE MEMBER CONNECTED TO ONE OF SAID CONTACTS AND RECEIVED IN THE EXHAUST PIPE OF SAID VEHICLE, MEANS MOUNTING SAID MEMBER FOR LIMITED MOVEMENT UPON THE IMPINGEMENT THEREON OF EXHAUST GASES IN A DIRECTION HOLDING SAID CONTACTS OPEN WHEN THE VEHICLE IS OPERATING UNDER POWER, AND BIAS MEANS ON SAID CONTACT OPERATING MEANS HAVING A FORCE ON SAID MEMBERS SUFFICIENT TO CLOSE SAID CONTACTS UPON DECREASE OF EXHAUST GAS FLOW WITH DECELERATION OF SAID VEHICLE FOR THE ILLUMINATION OF SAID SIGNAL LAMP.
References Cited (Backward Citations)
US2776441A
Cited
US2750578A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |