US3680335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety device controlling vehicle locking
Assignee: Tokai Rika Co Ltd
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Filing: 1971-03-23
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Granted: 1972-08-01
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Expires: 1991-03-23
Abstract
Abstract An improvement in theft preventing devices having a rotor of lock of the cylinder type by means of which the ignition switch is settable to various positions and a locking bolt which is protrusible by the rotation of rotor to the locking position to block a vital part of vehicle such as a steering shaft, in which said improvement lies in that said locking bolt is not protrusible unless an electromagnetically operable means acting on the locking bolt to keep said bolt to its retracted position is actuated, whereby the accidental locking of the vital part of vehicle during the driving of the vehicle is positively prevented.
Inventors
- 👤 Takekazu Onishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:14
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/01; B60R25/02; B60R25/021; B60R25/0211; B60R25/02115; B60R25/02126; B60R25/02128; B60R25/02142; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5889; Y10T70/5956; Y10T70/70; Y10T70/7051; Y10T70/7062; Y10T70/7124
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
150 words
In a theft preventing device for motor vehicles of the kind in which a locking bolt of a lock of the cylinder type connected to an ignition switch which is operable to various positions with the rotation of rotor of the lock, is brought from its retracted position into its protruded position, with the rotation of rotor into its locking position, where the forward end of locking bolt comes into the locking engagement with a vital part of vehicles such as steering shaft; an improvement comprises means normally biased by spring means towards the locking bolt for holding said bolt at its retracted position by its engagement with the locking bolt, said engagement is releasable by energizing an electromagnetic device which overcomes the biasing force of spring means exerting upon the first-mentioned means when it is energized by closing a switch provided to a circuit connected to said electromagnetic device.
Claim 2
Dependent Claim
150 words
In a theft preventing device for motor vehicles of the kind in which a locking bolt of a lock of the cylinder type connected to an ignition switch which is operable to various positions with the rotation of rotor of the lock, is brought from its retracted position into its protruded position, with the rotation of rotor into its locking position, where the forward end of locking bolt comes into the locking engagement with a vital part of vehicles such as steering shaft; an improvement comprises means normally biased by spring means towards the locking bolt for holding said bolt at its retracted position by its engagement with the locking bolt, said engagement is releasable by energizing an electromagnetic device which overcomes the biasing force of spring means exerting upon the first-mentioned means when it is energized by closing a switch provided to a circuit connected to said electromagnetic device.
Claim 3
Dependent Claim
41 words
A theft preventing device as claimed in claim 1, in which said means is a pin engageable with a recess provided to a lateral side of the locking bolt, and said switch is made closed by the opening of a door.
Claim 4
Dependent Claim
53 words
A theft preventing device as claimed in claim 1, in which said means is a pin engageable with a recess provided to a lateral side of the locking bolt, said electromagnetic device is a solenoid accommodating a part of said pin, and said switch is closed by the opening operation of a door.
Claim 5
Dependent Claim
63 words
A theft preventing device as claimed in claim 1, in which said means is a pin selectively engageable with either one of recesses provided to the locking bolt, the engagement of said pin with one of said recesses keeping the locking bolt to its retracted position and the engagement of said pin with the other recess keeping the bolt to its protruded position.
References Cited (Backward Citations)
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Cited
US1805088A
Cited
US1653549A
Cited
US1675465A
Cited
US2475220A
Cited
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Cited
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Cited
US3380549A
Cited
US3610004A
Cited
US3613412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |