US3330261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection systems
Assignee: Petrol Injection Ltd
•
Filing: 1965-03-15
•
Granted: 1967-07-11
•
Expires: 1985-03-15
Abstract
No abstract record available.
Inventors
- 👤 Harold E Jackson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:19
CPC Classifications
F; F02; F02M; F02M69/00; F02M69/46; F02M69/52; F02M69/16; F02M69/18; F02M69/20; F02M69/44; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2579
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
127 words
A CONTROL DEVICE FOR A VALVE, INCLUDING A FIRST CHAMBER CONTAINING A VALVE OPERATING MEMBER MOVABLE IN RESPONSE TO CHANGES IN FLUID PRESSURE, A SECOND CHAMBER HAVING A RESILIENT DIAPHRAGM DEFINING VENTED AND NON-VENTED COMPARTMENTS THEREIN, THE VENTED COMPARTMENT HAVING AN INLET FOR CONNECTION TO A CONTROL VACUUM SOURCE AND DIRECTLY COMMUNICATING WITH THE FIRST CHAMBER FOR EXPOSING THE VALVE OPERATING MEMBER TO THE SAID SOURCE, THE VENTED AND NON-VENTED COMPARTMENTS OF THE SECOND CHAMBER COMMUNICATING VIA A FLOW RESTRICTION, THE DIAPHRAGM NORMALLY CO-OPERATING WITH A SEATING TO CLOSE THE SAID VENT AND ARRANGED TO BE UNSEATED BY RELATIVELY SUDDEN DECREASES IN VACUUM OF THE SAID SOURCE THEREBY TEMPORARILY EXPOSING THE VALVE OPERATING MEMBER TO ATMOSPHERIC PRESSURE AND INCREASING THE EFFECT OF THE SAID DECREASE IN VACUUM.
Claim 2
Dependent Claim
127 words
A CONTROL DEVICE FOR A VALVE, INCLUDING A FIRST CHAMBER CONTAINING A VALVE OPERATING MEMBER MOVABLE IN RESPONSE TO CHANGES IN FLUID PRESSURE, A SECOND CHAMBER HAVING A RESILIENT DIAPHRAGM DEFINING VENTED AND NON-VENTED COMPARTMENTS THEREIN, THE VENTED COMPARTMENT HAVING AN INLET FOR CONNECTION TO A CONTROL VACUUM SOURCE AND DIRECTLY COMMUNICATING WITH THE FIRST CHAMBER FOR EXPOSING THE VALVE OPERATING MEMBER TO THE SAID SOURCE, THE VENTED AND NON-VENTED COMPARTMENTS OF THE SECOND CHAMBER COMMUNICATING VIA A FLOW RESTRICTION, THE DIAPHRAGM NORMALLY CO-OPERATING WITH A SEATING TO CLOSE THE SAID VENT AND ARRANGED TO BE UNSEATED BY RELATIVELY SUDDEN DECREASES IN VACUUM OF THE SAID SOURCE THEREBY TEMPORARILY EXPOSING THE VALVE OPERATING MEMBER TO ATMOSPHERIC PRESSURE AND INCREASING THE EFFECT OF THE SAID DECREASE IN VACUUM.
References Cited (Backward Citations)
US2341257A
Cited
US3029800A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |