US3750430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automotive locking system
Assignee: Individual
•
Filing: 1972-07-10
•
Granted: 1973-08-07
•
Expires: 1992-07-10
Abstract
Abstract An ancillary ignition cutout switch and a fuel line valve are carried in a housing secured beneath an automobile floorboard. The housing includes a cage rendering the switch and valve inaccessible to unauthorized manipulation. A cylinder lock, the key slot of which is accessible from the floorboard is key operable to rotate the valve stem and open or close the fuel line. A cam rides on the valve stem to actuate the switch which completes the ignition circuit only when the valve is in the open position.
Inventors
- 👤 A Crisa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:43
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/01; B60R25/04; B60R25/042; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6855; Y10T137/6881; Y10T137/6892; Y10T137/7069; Y10T137/7131; Y10T70/00; Y10T70/20; Y10T70/50; Y10T70/5889; Y10T70/5912; Y10T70/5916; Y10T70/80; Y10T70/8027; Y10T70/827; Y10T70/8432; Y10T70/8649
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
341 words
An automotive security system for use in a vehicle to prevent unauthorized operation of the vehicle, said system comprising a cylinder lock having a rotatable element and adapted to be affixed with the face thereof within the driving compartment of the vehicle for actuation from within said compartment, a housing adapted for positioning remote from said compartment and behind the face of said cylinder lock, the cylinder lock extending into the housing, a mortise sleeve, means interconnecting the mortise sleeve and the rotatable element (cylinder lock) for unitary rotation of the mortise sleeve and the rotatable element (cylinder lock element), a vehicle fuel line valve, said valve being positioned within the housing, an auxiliary ignition switch, said switch being positioned within the housing, the valve having a valve stem extending toward the lock, the valve stem inclUding means forming a non-circular tenon end, the mortise being drivingly coupled to the tenon end for unitary substantially coaxial rotation of the stem with the element from a first position wherein the valve is open to a second position wherein the valve blocks fuel flow therethrough, and means within the housing actuating the switch to complete the vehicle ignition circuit when the stem is in the first position, and to open the vehicle ignition circuit when the stem is in the second position, said housing including, means forming a lock cage, means securing the cylinder lock within said cage, the cage including a floor, the valve and the switch being positioned within the housing remotely from the cage, the means interconnecting the mortise sleeve and the element securing said mortise sleeve to the lock element such that unauthorized removal of the cylinder lock element disengages the mortise sleeve from the valve stem and effects a withdrawal of the mortise sleeve through the accessway, the accessway being sufficiently large for rotation of the mortise sleeve, yet sufficiently small to prevent rotation of the valve stem from inside the driving compartment through the utilization of conventional burglary implements, whereby unauthorized operation of the vehicle is prevented.
Claim 2
Dependent Claim
341 words
An automotive security system for use in a vehicle to prevent unauthorized operation of the vehicle, said system comprising a cylinder lock having a rotatable element and adapted to be affixed with the face thereof within the driving compartment of the vehicle for actuation from within said compartment, a housing adapted for positioning remote from said compartment and behind the face of said cylinder lock, the cylinder lock extending into the housing, a mortise sleeve, means interconnecting the mortise sleeve and the rotatable element (cylinder lock) for unitary rotation of the mortise sleeve and the rotatable element (cylinder lock element), a vehicle fuel line valve, said valve being positioned within the housing, an auxiliary ignition switch, said switch being positioned within the housing, the valve having a valve stem extending toward the lock, the valve stem inclUding means forming a non-circular tenon end, the mortise being drivingly coupled to the tenon end for unitary substantially coaxial rotation of the stem with the element from a first position wherein the valve is open to a second position wherein the valve blocks fuel flow therethrough, and means within the housing actuating the switch to complete the vehicle ignition circuit when the stem is in the first position, and to open the vehicle ignition circuit when the stem is in the second position, said housing including, means forming a lock cage, means securing the cylinder lock within said cage, the cage including a floor, the valve and the switch being positioned within the housing remotely from the cage, the means interconnecting the mortise sleeve and the element securing said mortise sleeve to the lock element such that unauthorized removal of the cylinder lock element disengages the mortise sleeve from the valve stem and effects a withdrawal of the mortise sleeve through the accessway, the accessway being sufficiently large for rotation of the mortise sleeve, yet sufficiently small to prevent rotation of the valve stem from inside the driving compartment through the utilization of conventional burglary implements, whereby unauthorized operation of the vehicle is prevented.
Claim 3
Dependent Claim
24 words
A system constructed in accordance with claim 1 wherein the cage includes gate means for blocking the accessway upon withdrawal of the mortise sleeve.
Claim 4
Dependent Claim
302 words
An automotive security system for use in a vehicle to prevent unauthorized operation of the vehicle, said system comprising a cylinder lock having a rotatable element and adapted to be affixed with the face thereof within the driving compartment of the vehicle for actuation from within said compartment, a housing adapted for positioning remote from said compartment and behind the face of said cylinder lock, the cylinder lock extending into the housing, a vehicle fuel line valve, said valve being positioned within the housing, an auxiliary ignition switch, said switch being positioned within the housing, the valve having a valve stem extending toward the lock, the valve stem including means forming a tenon end, means interconnecting the rotatable element of the cylinder lock for unitary rotation of the interconnecting means, the cylinder lock element and the tenon end, the interconnecting means and its operably linked elements rotatable from a first position wherein the valve is open to a second position wherein the valve blocks fuel flow therethrough, means within the housing actuating the switch to complete the vehicle ignition circuit when the stem is in the first position, and to open the vehicle ignition circuit when the stem is in the second position, and shielding means, said shielding means interposed between said valve means and said rotatable element and having an accessway therein, said interconnecting means secured to said lock such that unauthorized removal of said lock disengages said interconnecting means from the valve stem and effects a withdrawal of the interconnecting means through said accessway, the accessway being sufficiently large for rotation of said interconnecting means, yet sufficiently small to prevent rotation of the valve stem from inside the driving compartment upon removal of the lock through the utilization of conventional burglary implements, whereby unauthorized operation of the vehicle is prevented.
Claim 5
Dependent Claim
302 words
An automotive security system for use in a vehicle to prevent unauthorized operation of the vehicle, said system comprising a cylinder lock having a rotatable element and adapted to be affixed with the face thereof within the driving compartment of the vehicle for actuation from within said compartment, a housing adapted for positioning remote from said compartment and behind the face of said cylinder lock, the cylinder lock extending into the housing, a vehicle fuel line valve, said valve being positioned within the housing, an auxiliary ignition switch, said switch being positioned within the housing, the valve having a valve stem extending toward the lock, the valve stem including means forming a tenon end, means interconnecting the rotatable element of the cylinder lock for unitary rotation of the interconnecting means, the cylinder lock element and the tenon end, the interconnecting means and its operably linked elements rotatable from a first position wherein the valve is open to a second position wherein the valve blocks fuel flow therethrough, means within the housing actuating the switch to complete the vehicle ignition circuit when the stem is in the first position, and to open the vehicle ignition circuit when the stem is in the second position, and shielding means, said shielding means interposed between said valve means and said rotatable element and having an accessway therein, said interconnecting means secured to said lock such that unauthorized removal of said lock disengages said interconnecting means from the valve stem and effects a withdrawal of the interconnecting means through said accessway, the accessway being sufficiently large for rotation of said interconnecting means, yet sufficiently small to prevent rotation of the valve stem from inside the driving compartment upon removal of the lock through the utilization of conventional burglary implements, whereby unauthorized operation of the vehicle is prevented.
Claim 6
Dependent Claim
24 words
A system constructed in accordance with claim 3 wherein the means actuating the switch includes cam means engaging the valve stem and rotatable therewith.
Claim 7
Dependent Claim
25 words
A system constructed in accordance with claim 4 wherein the switch includes a plunger, the cam including a post for selective engagement with the plunger.
Claim 8
Dependent Claim
40 words
A system constructed in accordance with claim 3 wherein a guard plate is provided, means forming an aperture in the guard plate, the cylinder lock extending through the guard plate aperture and the housing being joined to the guard plate.
Claim 9
Dependent Claim
49 words
A security system constructed in accordance With claim 6 further including a cover plate, means hingedly securing the cover plate to the guard plate for selective movement from a position covering the face of the cylinder lock to a position wherein the face of the cylinder lock is accessible.
Claim 10
Dependent Claim
34 words
A system constructed in accordance with claim 3 further including an indicator lamp, circuit means interconnecting the indicator lamp with the switch for operation when the switch is engaged to complete the ignition circuit.
Claim 11
Dependent Claim
58 words
A security system constructed in accordance with claim 3 further including a vehicle having an engine, a fuel storage tank and a fuel line, the fuel line interconnecting the storage tank with the engine, the vehicle further including an ignition circuit, means interconnecting the valve with the fuel line, and means interconnecting the switch with the ignition circuit.
Claim 12
Dependent Claim
38 words
A system constructed in accordance with claim 9 wherein the cylinder lock is on the floor of the vehicle, the vehicle including a floor covering, means forming a flap in the floor covering for concealing the cylinder lock.
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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) | 1976-08-06 | 1977-02-05 | 1977-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-06 | 1981-02-05 | 1981-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-06 | 1985-02-05 | 1985-08-07 | $7700.00 | Window Closed / Lapsed |