US3698505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicular anti-theft brake locking device and method
Assignee: Individual
•
Filing: 1971-05-17
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Granted: 1972-10-17
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Expires: 1991-05-17
Abstract
Abstract The invention applies to vehicular brakes for a predetermined time period whenever the vehicular coil or starting motor circuitry is energized with the ignition in the OFF position. A logic circuit is readied when the vehicle ignition is turned to the OFF position and/or the key removed. Subsequently, if the wires are crossed or a jumper used to excite the coil, starting solenoid or motor, the logic system senses this tampering and energizes an electro-mechanical pump to actuate a piston in an auxilliary cylinder connected to the vehicular brake system to apply and lock the brakes on under control of a timer. An alarm controlled by the timer may be sounded at any selected moment during the lock-up time. The circuitry is automatically reset at the expiration of the predetermined time to again sense his tampering and lock up the brakes if detected. Access is provided to the timer alarm to release the pump and alarm, but use of the ignition key is required to open the auxilliary cylinder.
Inventors
- 👤 Houston F Webley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:50
CPC Classifications
B; B60; B60T; B60T7/00; B60T7/12; B60R; B60R25/00; B60R25/01; B60R25/08
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
97 words
A vehicular brake protective system for use with a vehicular key type ignition having an OFF contact, an ON contact supplying the ignition coil circuitry, and a START contact supplying the starter motor circuitry comprising in combination electrically actuable means for applying the vehicular brakes; logic means responsive to: the ignition in its OFF condition and at least one of the ignition coil and starter motor circuitry when energized to cause triggering of the logic circuit; and timer means responsive to triggering of the logic circuit to actuate the electrically actuable means to apply the vehicular brakes.
Claim 2
Dependent Claim
97 words
A vehicular brake protective system for use with a vehicular key type ignition having an OFF contact, an ON contact supplying the ignition coil circuitry, and a START contact supplying the starter motor circuitry comprising in combination electrically actuable means for applying the vehicular brakes; logic means responsive to: the ignition in its OFF condition and at least one of the ignition coil and starter motor circuitry when energized to cause triggering of the logic circuit; and timer means responsive to triggering of the logic circuit to actuate the electrically actuable means to apply the vehicular brakes.
Claim 3
Dependent Claim
24 words
The apparatus of claim 1 wherein said electrically actuable means comprises an auxiliary cylinder in fluid connection with the brake system of the vehicle.
Claim 4
Dependent Claim
41 words
The apparatus of claim 2 wherein said auxilliary cylinder comprises access means and locking means for securing the access means to the auxiliary cylinder; said locking means adapted to receive only the same key for unlocking as fits the ignition switch.
Claim 5
Dependent Claim
28 words
The apparatus of claim 2 wherein said Auxiliary cylinder includes therein the timing means and an electromechanical pump means for operating the brakes via the vehicular brake system.
Claim 6
Dependent Claim
44 words
The apparatus of claim 1 wherein said logic means comprises gate means for applying power to the electrically actuable means in response to energization of at least one of the vehicle coil circuitry and the vehicle starter motor circuitry when the ignition is OFF.
Claim 7
Dependent Claim
43 words
The apparatus of claim 5 wherein the gate means comprises OR gate means having a pair of input circuits; one of said input circuits extending to the ignition coil circuitry and the other of said input circuits extending to the starter motor circuitry.
Claim 8
Dependent Claim
41 words
The apparatus of claim 6 wherein the OR gate means comprises a first transistor adapted to be rendered conductive by either input circuit, and a second transistor adapted to be rendered conductive by the first transistor for energizing the timer means.
Claim 9
Dependent Claim
57 words
The apparatus of claim 7 including a B+ connection from the vehicular electrical system to the OFF connection of the ignition switch and from the OFF connection to the timer means and a further connection from the timer means to the electrical actuable means for extending B+ to the latter means when the timer means is actuated.
Claim 10
Dependent Claim
17 words
The apparatus of claim 8 wherein the timer means includes alarm means actuable during the timing period.
Claim 11
Independent Claim
82 words
The method of protecting a vehicle from theft through use of the vehicle electrical system having an ignition switch with an OFF contact position, and ON contact extending to the ignition coil circuitry, and a START contact extending to the starter motor circuitry comprising the steps of: sensing for energization of at least one of the ignition coil circuitry and starter motor circuitry when the ignition switch is OFF; and increasing the pressure in the vehicular braking system when energization is sensed.
Claim 12
Independent Claim
82 words
The method of protecting a vehicle from theft through use of the vehicle electrical system having an ignition switch with an OFF contact position, and ON contact extending to the ignition coil circuitry, and a START contact extending to the starter motor circuitry comprising the steps of: sensing for energization of at least one of the ignition coil circuitry and starter motor circuitry when the ignition switch is OFF; and increasing the pressure in the vehicular braking system when energization is sensed.
Claim 13
Dependent Claim
28 words
The method of claim 10 including the further step of deriving power from the OFF contact to operate the sensing step and to power the increasing pressure step.
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) | 1975-10-17 | 1976-04-17 | 1976-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-17 | 1980-04-17 | 1980-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-17 | 1984-04-17 | 1984-10-17 | $7700.00 | Window Closed / Lapsed |