Patent US3945966A successfully refreshed from Google Patents.
Patent US4796583A successfully refreshed from Google Patents.
US4796583A
Expired / Lapsed
US
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Anti-overrunning device for an internal combustion engine
Assignee: Walbro Far East Inc
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Filing: 1987-09-29
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Granted: 1989-01-10
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Expires: 2007-09-29
Abstract
Abstract An anti-overrunning device for an internal combustion engine utilizing a carburetor with a throttle valve and a vibrating pump for generating pressure by vibrations of the engine. An actuator is provided for the throttle valve to move it to a closing position, and a control valve is used to control flow of pressure from the vibrating pump to the actuator. A generator driven by the engine provides electromotive force to actuate the control valve.
Inventors
- 👤 Kohji Nagasaka
- 👤 Takeshi Kobayashi
- 👤 Yoshimi Sejimo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:39
CPC Classifications
F; F02; F02D; F02D17/00; F02D17/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
An anti-overrunning device for an internal combustion engine comprising a vibrating pump for generating pneumatic pressure by vibrations of the engine, an actuator for actuating a throttle valve of a carburetor in a direction of closing the valve, and a control valve for controlling a flow of the pneumatic pressure from said vibrating pump to said actuator during overrunning of the engine, and said control valve being actuated by virtue of the electromotive force of a generator driven by the engine.
Claim 2
Dependent Claim
81 words
An anti-overrunning device for an internal combustion engine comprising a vibrating pump for generating pneumatic pressure by vibrations of the engine, an actuator for actuating a throttle valve of a carburetor in a direction of closing the valve, and a control valve for controlling a flow of the pneumatic pressure from said vibrating pump to said actuator during overrunning of the engine, and said control valve being actuated by virtue of the electromotive force of a generator driven by the engine.
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) | 1992-01-10 | 1992-07-11 | 1993-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-01-10 | 1996-07-11 | 1997-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-01-10 | 2000-07-11 | 2001-01-10 | $7700.00 | Window Closed / Lapsed |