US3588403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Time-lag pressure responsive switches
Assignee: Automobiles Peugeot SA
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Filing: 1969-01-06
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Granted: 1971-06-28
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Expires: 1989-01-06
Abstract
Abstract A TIMELAG PRESSURE RESPONSIVE SWITCH COMPRISING A PRESSURE CHAMBER CLOSED BY A FLEXIBLE DIAPHRAGM OF WHICH THE MOVABLE PORTION IS DISPLACEABLE AGAINST THE RESISTANCE OF AN ANTAGONISTIC SPRING FOR ACTUATING A ROD CONTROLLING A BACK CONTACT, CHARACTERIZED IN THAT IT COMPRISES A TIMELAG DEVICE FOR RETARDING THE OPENING OF SAID CONTACT AND ADJUSTING THE RATE OF DELIVERY OF THE FLUID UNDER PRESSURE TO SAID CHAMBER FOR ACTUATING SAID PRESSURE RESPONSIVE SWITCH, THE TIMELAG CHARACTERISTIC OF THIS DEVICE INCREASING WITH THE FLUID VISCOSITY WHILE PRESERVING THE FAST OPENING CONTACT CHARACTERISTIC.
Inventors
- 👤 Jean Piret
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:39
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |