Patent US4727907A successfully refreshed from Google Patents.
US3552518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle anti-theft device utilizing the parking brake
Assignee: Individual
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Filing: 1967-11-20
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Granted: 1971-01-05
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Expires: 1987-11-20
Abstract
Abstract This invention relates to an antitheft device for use with an automobile of the type including a vacuum release parking brake mechanism. In the present invention a valve is included in the vacuum line which controls the release of the parking brake and a lock is coupled to the valve so as to control the operation of the valve. Specifically, the valve is controlled so that the vacuum does not release the parking brake when the lock is in the locked position. In a particular embodiment of the invention, the lock is a combination lock so that the operator of the automobile does not have to carry any additional keys.
Inventors
- 👤 Sam Aidner
- 👤 Anthony J Russo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:17
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/002; B60R25/003; B60R25/007; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5611; Y10T70/5615; Y10T70/5619; Y10T70/5633; Y10T70/5889
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
103 words
An antitheft device for use with an automobile having a vacuum line connected to a vacuum release parking brake assembly and with the automobile having an ignition lock, including: a lock mechanism separate from the ignition lock having open and locked positions; a valve assembly coupled to the lock mechanism and with the valve assembly having open and closed positions and with the position of the valve assembly controlled by the position of the lock mechanism; and means interconnecting the valve assembly with the vacuum line to prevent the release of the parking brake when the lock mechanism is in the locked position.
Claim 2
Dependent Claim
103 words
An antitheft device for use with an automobile having a vacuum line connected to a vacuum release parking brake assembly and with the automobile having an ignition lock, including: a lock mechanism separate from the ignition lock having open and locked positions; a valve assembly coupled to the lock mechanism and with the valve assembly having open and closed positions and with the position of the valve assembly controlled by the position of the lock mechanism; and means interconnecting the valve assembly with the vacuum line to prevent the release of the parking brake when the lock mechanism is in the locked position.
Claim 3
Dependent Claim
43 words
The antitheft device of claim 1 wherein the valve assembly is in the open position when the lock mechanism is in the open position and wherein the vAlve assembly is in the closed position when the lock mechanism is in the locked position.
Claim 4
Dependent Claim
27 words
The antitheft device of claim 1 wherein the antitheft device is operative when the parking brake is set and the lock mechanism is in the locked position.
Claim 5
Dependent Claim
109 words
An antitheft device for use with an automobile having a vacuum line connected to a vacuum release parking brake assembly and with the automobile having an ignition lock, including: a valve coupled in the vacuum line connected to the vacuum release parking brake assembly and with the valve having open and closed positions to control the operation of the vacuum release parking brake assembly; and a lock separate from the ignition lock having open and locked positions and with the lock including means for controlling the valve so as to control the vacuum release parking brake assembly to prevent the release when the lock is in the locked position.
Claim 6
Dependent Claim
109 words
An antitheft device for use with an automobile having a vacuum line connected to a vacuum release parking brake assembly and with the automobile having an ignition lock, including: a valve coupled in the vacuum line connected to the vacuum release parking brake assembly and with the valve having open and closed positions to control the operation of the vacuum release parking brake assembly; and a lock separate from the ignition lock having open and locked positions and with the lock including means for controlling the valve so as to control the vacuum release parking brake assembly to prevent the release when the lock is in the locked position.
Claim 7
Dependent Claim
138 words
An antitheft device for an automobile including an ignition lock, including: a vacuum line operatively interconnected within the automobile and with a vacuum within the vacuum line when the engine of the automobile is running and with no vacuum within the vacuum line when the automobile is not running; a parking brake assembly coupled to the vacuum line and with the parking brake assembly normally controlled to release when there is a vacuum within the vacuum line; a valve having open and closed positions coupled to the vacuum line for controlling the application of the vacuum to the parking brake assembly; and a lock separate from the ignition lock having open and locked positions connected to the valve to control the valve to prevent the release of the parking brake when the lock is in the locked position.
Claim 8
Dependent Claim
138 words
An antitheft device for an automobile including an ignition lock, including: a vacuum line operatively interconnected within the automobile and with a vacuum within the vacuum line when the engine of the automobile is running and with no vacuum within the vacuum line when the automobile is not running; a parking brake assembly coupled to the vacuum line and with the parking brake assembly normally controlled to release when there is a vacuum within the vacuum line; a valve having open and closed positions coupled to the vacuum line for controlling the application of the vacuum to the parking brake assembly; and a lock separate from the ignition lock having open and locked positions connected to the valve to control the valve to prevent the release of the parking brake when the lock is in the locked position.
Claim 9
Dependent Claim
94 words
An antitheft device for use with an automobile having a vacuum line connected to a vacuum release parking brake assembly, including: a combination lock mechanism having open and locked positions; a valve assembly coupled to the combination lock mechanism and with the valve assembly having open and closed positions and with the position of the valve assembly controlled by the position of the combination lock mechanism; and means interconnecting the valve assembly with the vacuum line to prevent the release of the parking brake when the combination lock mechanism is in the locked position.
Claim 10
Dependent Claim
94 words
An antitheft device for use with an automobile having a vacuum line connected to a vacuum release parking brake assembly, including: a combination lock mechanism having open and locked positions; a valve assembly coupled to the combination lock mechanism and with the valve assembly having open and closed positions and with the position of the valve assembly controlled by the position of the combination lock mechanism; and means interconnecting the valve assembly with the vacuum line to prevent the release of the parking brake when the combination lock mechanism is in the locked position.
Claim 11
Dependent Claim
99 words
An antitheft device for use with an automobile having a vacuum line connected to a vacuum release parking brake assembly, including: a valve coupled in the vacuum line connected to the vacuum release parking brake assembly and with the valve having open and closed positions to control the operation of the vacuum release parking brake assembly; and a combination lock having open and locked positions and with the combination lock including means for controlling the valve so as to control the vacuum release parking brake assembly to prevent the release when the combination lock is in the locked positions.
Claim 12
Dependent Claim
99 words
An antitheft device for use with an automobile having a vacuum line connected to a vacuum release parking brake assembly, including: a valve coupled in the vacuum line connected to the vacuum release parking brake assembly and with the valve having open and closed positions to control the operation of the vacuum release parking brake assembly; and a combination lock having open and locked positions and with the combination lock including means for controlling the valve so as to control the vacuum release parking brake assembly to prevent the release when the combination lock is in the locked positions.
Claim 13
Dependent Claim
131 words
An antitheft device for an automobile, including: a vacuum line operatively interconnected within the automobile and with a vacuum within the vacuum line when the engine of the automobile is running and with no vacuum within the vacuum line when the automobile is not running; a parking brake assembly coupled to the vacuum line and with the parking brake assembly normally controlled to release when there is a vacuum within the vacuum line; a valve having open and closed positions coupled to the vacuum line for controlling the application of the vacuum to the parking brake assembly; and a combination lock having open and locked positions connected to the valve to control the valve to prevent the release of the parking brake when the combination lock is in the locked position.
Claim 14
Dependent Claim
131 words
An antitheft device for an automobile, including: a vacuum line operatively interconnected within the automobile and with a vacuum within the vacuum line when the engine of the automobile is running and with no vacuum within the vacuum line when the automobile is not running; a parking brake assembly coupled to the vacuum line and with the parking brake assembly normally controlled to release when there is a vacuum within the vacuum line; a valve having open and closed positions coupled to the vacuum line for controlling the application of the vacuum to the parking brake assembly; and a combination lock having open and locked positions connected to the valve to control the valve to prevent the release of the parking brake when the combination lock is in the locked position.
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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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |