US4072207A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive speed control device
Assignee: Bosch Corp
•
Filing: 1976-12-27
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Granted: 1978-02-07
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Expires: 1996-12-27
Abstract
Abstract In an automotive speed control device in which an accelerator pedal is held in a decelerating position by a force produced by an operating fluid pressure which is proportional to a predetermined speed setting, a relief means in the form of a spiral spring or a pressure relief valve is provided to absorb or relieve a strong depressing force exerted by a vehicle operator to the accelerator pedal. The speed control device further comprises a release means by which the operating fluid pressure is released in accordance with a release signal.
Inventors
- 👤 Toshihiro Kokubo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:14
CPC Classifications
B; B60; B60K; B60K31/00; B60K31/18
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
198 words
A speed control device for an automotive vehicle having an accelerator member selectively movable by a vehicle operator between an accelerating position and a decelerating position, comprising in combination: speed responsive means having a fluid pressure converter responsive to a vehicle speed to produce an operating fluid pressure when the vehicle speed exceeds a predetermined level; pressure responsive means operatively connected between the speed responsive means and the accelerator member and responsive to the operating fluid pressure to apply a force of the operating fluid pressure to the acceleration member to hold the same at the decelerating position providing a speed lower than the predetermined level; relief means operatively connected to the accelerator member to relieve a force applied to the accelerator member by the vehicle operator against the force of the operation fluid pressure applied to the same; release signal producing means cooperated with an alarm provided in the vehicle to produce a release signal when the alarm is actuated; and, pressure release means provided between the speed responsive means and the pressure responsive means and responsive to the release signal to release the operating fluid pressure whereby the accelerator member is movable to the accelerating position.
Claim 2
Dependent Claim
198 words
A speed control device for an automotive vehicle having an accelerator member selectively movable by a vehicle operator between an accelerating position and a decelerating position, comprising in combination: speed responsive means having a fluid pressure converter responsive to a vehicle speed to produce an operating fluid pressure when the vehicle speed exceeds a predetermined level; pressure responsive means operatively connected between the speed responsive means and the accelerator member and responsive to the operating fluid pressure to apply a force of the operating fluid pressure to the acceleration member to hold the same at the decelerating position providing a speed lower than the predetermined level; relief means operatively connected to the accelerator member to relieve a force applied to the accelerator member by the vehicle operator against the force of the operation fluid pressure applied to the same; release signal producing means cooperated with an alarm provided in the vehicle to produce a release signal when the alarm is actuated; and, pressure release means provided between the speed responsive means and the pressure responsive means and responsive to the release signal to release the operating fluid pressure whereby the accelerator member is movable to the accelerating position.
Claim 3
Dependent Claim
45 words
A speed control device according to claim 1 in which the relief means comprises a spiral spring connected between the pressure responsive means and the accelerator member to absorb at least a part of the force applied to the accelerator member by the vehicle operator.
Claim 4
Dependent Claim
47 words
A speed control device according to claim 1 in which the relief means comprises a pressure relief valve provided between the speed responsive means and the pressure responsive means to relieve the fluid pressure in the pressure responsive means when the fluid pressure exceeds a predetermined value.
Claim 5
Dependent Claim
58 words
A speed control device according to claim 3 in which the pressure relief valve comprises a valve casing having an opening communicating with an atmosphere and a valve opening communicating with the pressure responsive means, a valve member closing the valve opening in the valve casing and a spiral spring urging the valve member to the valve opening.
Claim 6
Dependent Claim
24 words
A speed control device according to claim 4 in which the pressure relief valve further comprises a spring adjusting screw for the spiral spring.
Claim 7
Dependent Claim
16 words
A speed control device according to claim 4 in which the valve member is a ball.
Claim 8
Dependent Claim
35 words
The speed control device according to claim 1 in which the release signal producing means comprises an emergency switch which is connected to a power source and cooperated with a power switch of the alarm.
Claim 9
Dependent Claim
16 words
A speed control device according to claim 1 in which the alarm is a warning siren.
Claim 10
Dependent Claim
16 words
A speed control device according to claim 1 in which the alarm is a traffic indicator.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-02-06 | 1981-08-08 | 1982-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-06 | 1985-08-08 | 1986-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-06 | 1989-08-08 | 1990-02-07 | $7700.00 | Window Closed / Lapsed |