US3855828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination fuel line and ignition lock for motor vehicles
Assignee: Individual
•
Filing: 1973-09-17
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Granted: 1974-12-24
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Expires: 1993-09-17
Abstract
Abstract A combination fuel lock and simultaneously operating ignition switch. The lock comprises a housing and a lock cylinder turnable in the housing. The cylinder is provided with a pair of spaced insulating elements and a through cross-bore. A pair of insulated contacts in the housing are connected in series with the vehicle''s ignition switch and are biased against the cylinder. The housing is provided with inlet and outlet passages alignable with the cylinder''s cross-bore.
Inventors
- 👤 J Verderber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:40
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/01; B60R25/04; B60R2025/041; Y; Y10; Y10T; Y10T137/00; Y10T137/7069; Y10T137/7131; Y10T70/00; Y10T70/50; Y10T70/5889; Y10T70/5912; Y10T70/5916
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
163 words
An anti-theft device for an internal combustion engine of a motor vehicle comprising, in combination, lock means for simultaneously switching off an ignition circuit and shutting off a fuel supply for an engine, said lock means comprising a nonconductive lock housing, a lock cylinder rotatably displaceable in said housing, said cylinder being provided with a pair of spaced non-conductive inserts on its periphery and a lower end portion provided with a through bore, a pair of non-conductive bushings secured in said housing radially of said lock cylinder and alignable with said non-conductive inserts, contacts mounted in said bushings, springs in said bushings biasing said contacts against said cylinder, wire means for electrically connecting these elements in series with an ignition circuit of a moTor vehicle; said housing having a pair of radially extending inlet and outlet passages alignable with said bore and tubing secured to said passages for connecting said inlet and outlet passages to a vehicle''s fuel tank and a carburetor respectively.
Claim 2
Dependent Claim
163 words
An anti-theft device for an internal combustion engine of a motor vehicle comprising, in combination, lock means for simultaneously switching off an ignition circuit and shutting off a fuel supply for an engine, said lock means comprising a nonconductive lock housing, a lock cylinder rotatably displaceable in said housing, said cylinder being provided with a pair of spaced non-conductive inserts on its periphery and a lower end portion provided with a through bore, a pair of non-conductive bushings secured in said housing radially of said lock cylinder and alignable with said non-conductive inserts, contacts mounted in said bushings, springs in said bushings biasing said contacts against said cylinder, wire means for electrically connecting these elements in series with an ignition circuit of a moTor vehicle; said housing having a pair of radially extending inlet and outlet passages alignable with said bore and tubing secured to said passages for connecting said inlet and outlet passages to a vehicle''s fuel tank and a carburetor respectively.
Claim 3
Dependent Claim
44 words
The device as claimed in claim 1, wherein said upper end of the housing is formed with a radial flange and an adjacent outer threaded portion, and a lock nut engageable with said outer threaded portion for securing said housing to a mounting surface.
Claim 4
Dependent Claim
50 words
The device as claimed in claim 1, further provided with control switch means connected in series with said contacts, said control switch means being operable to open the circuit when a key is inserted in said cylinder and to close the circuit when a key is removed from said cylinder.
Claim 5
Dependent Claim
30 words
The device as claimed in claim 1, wherein said lock cylinder has a key opening and a switchable cover for said key opening, for preventing entrance of foreign matter therein.
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) | 1977-12-23 | 1978-06-24 | 1978-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-23 | 1982-06-24 | 1982-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-23 | 1986-06-24 | 1986-12-24 | $7700.00 | Window Closed / Lapsed |