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US4084657A Expired / Lapsed US ⏱️ 0.0 years remaining

Method and apparatus for preventing theft of idling vehicles

Assignee: Individual
•
Filing: 1974-02-28
•
Granted: 1978-04-18
•
Expires: 1994-02-28
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Abstract

Abstract A valve positioned in the fuel supply line of a vehicle has two positions selectable by means of a key-operated lock. In the first position, the valve permits full fuel flow allowing the vehicle to operate in its normal manner. In the second position, the valve only permits a greatly reduced fuel flow allowing the vehicle to operate at idle speed, and thereby preventing the vehicle from being operated in its normal manner by an unauthorized user.

Inventors

  • 👤 W. L. Bradley
  • 👤 Bennie W. Frye
  • 👤 Joseph W. Raines

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-02 23:37
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/01; B60R25/04; B60R25/042; Y; Y10; Y10T; Y10T137/00; Y10T137/7069; Y10T137/7131; Y10T70/00; Y10T70/50; Y10T70/5889; Y10T70/5912

Claims Analysis

Total Claims: 14
Claim 1
Independent Claim 164 words
Apparatus for preventing the theft of a vehicle having an engine utilizing first and second fuel components, said engine incorporating a fuel tank for storing the first fuel component and a carburetor for mixing the first and second fuel components, said carburetor having a fuel chamber for storing a small quantity of said first fuel; comprising: A. a valve interposed between the fuel tank and the fuel chamber of the carburetor having: (a) a first position permitting full flow of said first fuel component to said chamber; and (b) a second position permitting restricted flow of said first fuel component to said chamber; and B. a lock communicating with the valve for controlling the movement of the valve between its first and second positions; whereby the engine is fully operable when the valve is placed in its first, full flow position, and is restricted to continuous idling and short time duration full loading when the valve is placed in its second, restricted flow position.
Claim 2
Dependent Claim 164 words
Apparatus for preventing the theft of a vehicle having an engine utilizing first and second fuel components, said engine incorporating a fuel tank for storing the first fuel component and a carburetor for mixing the first and second fuel components, said carburetor having a fuel chamber for storing a small quantity of said first fuel; comprising: A. a valve interposed between the fuel tank and the fuel chamber of the carburetor having: (a) a first position permitting full flow of said first fuel component to said chamber; and (b) a second position permitting restricted flow of said first fuel component to said chamber; and B. a lock communicating with the valve for controlling the movement of the valve between its first and second positions; whereby the engine is fully operable when the valve is placed in its first, full flow position, and is restricted to continuous idling and short time duration full loading when the valve is placed in its second, restricted flow position.
Claim 3
Dependent Claim 31 words
Apparatus for preventing the theft of a motor vehicle as defined in claim 1, wherein the first fuel component is an oxidizable fluid and the second fuel component is an oxidant.
Claim 4
Dependent Claim 26 words
Apparatus for preventing the theft of a motor vehicle as defined in claim 2, wherein said first fuel is petroleum and said second fuel is air.
Claim 5
Dependent Claim 86 words
Apparatus for preventing the theft of a motor vehicle as defined in claim 1, wherein the lock further comprises: (a) a first position corresponding to the first position of the valve permitting a full flow of said first fuel to the carburetor fuel chamber of said engine; and, (b) a second position corresponding to the second position of the valve permitting restricted flow of said first fuel to the carburetor fuel chamber of said engine, the key being removable from the lock in its second position.
Claim 6
Dependent Claim 184 words
Apparatus for preventing the theft of a motor vehicle having an engine utilizing first and second fuel components, said engine incorporating a fuel tank for storing the first fuel component and a carburetor for mixing the first and second fuel components, said carburetor having a fuel chamber for storing a small quantity of said first fuel; comprising: A. a valve interposed between the fuel tank and the fuel chamber of the carburetor having: (a) a first position permitting full flow of said first fuel component to said chamber; and (b) a second position permitting restricted flow of said first fuel component to said chamber; B. a lock communicating with the valve for controlling the movement of the valve between its first and second positions; and C. a shielded cable connected between said valve and said lock for remotely positioning the valve from the lock; whereby the engine is fully operable when the valve is placed in its first, full flow position, and is restricted to continuous idling and short time duration full loading when the valve is placed in its second, restricted flow position.
Claim 7
Dependent Claim 184 words
Apparatus for preventing the theft of a motor vehicle having an engine utilizing first and second fuel components, said engine incorporating a fuel tank for storing the first fuel component and a carburetor for mixing the first and second fuel components, said carburetor having a fuel chamber for storing a small quantity of said first fuel; comprising: A. a valve interposed between the fuel tank and the fuel chamber of the carburetor having: (a) a first position permitting full flow of said first fuel component to said chamber; and (b) a second position permitting restricted flow of said first fuel component to said chamber; B. a lock communicating with the valve for controlling the movement of the valve between its first and second positions; and C. a shielded cable connected between said valve and said lock for remotely positioning the valve from the lock; whereby the engine is fully operable when the valve is placed in its first, full flow position, and is restricted to continuous idling and short time duration full loading when the valve is placed in its second, restricted flow position.
Claim 8
Dependent Claim 313 words
Apparatus for preventing the theft of a vehicle having an engine utilizing first and second fuel components, said engine incorporating a fuel tank for storing the first fuel component, a carburetor for mixing the first and second fuel components, said carburetor having a fuel chamber for storing a small quantity of said first fuel, and a fuel line incorporating a first portion connected at a first end to the fuel tank and a second portion connected at a first end to the carburetor; comprising: A. a cylindrical valve interposed between the fuel tank and the fuel chamber of the carburetor having: (a) a first position permitting full flow of said first fuel component to said chamber; and (b) a second position permitting restricted flow of said first fuel component to said chamber; wherein said valve has a bore therethrough alignable with the fuel line to provide a full flow of fuel to the engine in its first position, and having a peripheral reduced diameter portion intersecting the fuel line to provide a restricted flow of fuel to the engine in its second position; B. a lock communicating with the valve for controlling the movement of the valve between its first and second position; and C. a housing installed between the second ends of the first and second portions of said fuel line, incorporating: (a) an inlet port connected to the second end of the first portion of said fuel line, (b) an outlet port connected to the second end of the second portion of said fuel line, and (c) a cylindrical valve chamber conforming to said cylindrical valve to rotatably receive said valve; whereby the engine is fully operable when the valve is placed in its first, full flow position, and is restricted to continuous idling and short time duration full loading when the valve is placed in its second, restricted flow position.
Claim 9
Dependent Claim 313 words
Apparatus for preventing the theft of a vehicle having an engine utilizing first and second fuel components, said engine incorporating a fuel tank for storing the first fuel component, a carburetor for mixing the first and second fuel components, said carburetor having a fuel chamber for storing a small quantity of said first fuel, and a fuel line incorporating a first portion connected at a first end to the fuel tank and a second portion connected at a first end to the carburetor; comprising: A. a cylindrical valve interposed between the fuel tank and the fuel chamber of the carburetor having: (a) a first position permitting full flow of said first fuel component to said chamber; and (b) a second position permitting restricted flow of said first fuel component to said chamber; wherein said valve has a bore therethrough alignable with the fuel line to provide a full flow of fuel to the engine in its first position, and having a peripheral reduced diameter portion intersecting the fuel line to provide a restricted flow of fuel to the engine in its second position; B. a lock communicating with the valve for controlling the movement of the valve between its first and second position; and C. a housing installed between the second ends of the first and second portions of said fuel line, incorporating: (a) an inlet port connected to the second end of the first portion of said fuel line, (b) an outlet port connected to the second end of the second portion of said fuel line, and (c) a cylindrical valve chamber conforming to said cylindrical valve to rotatably receive said valve; whereby the engine is fully operable when the valve is placed in its first, full flow position, and is restricted to continuous idling and short time duration full loading when the valve is placed in its second, restricted flow position.
Claim 10
Dependent Claim 316 words
Apparatus for preventing the theft of a motor vehicle having an engine utilizing first and second fuel components, said engine incorporating a fuel tank for storing the first fuel component and a carburetor for mixing the first and second fuel components, said carburetor having a fuel chamber for storing a small quantity of said fuel and a fuel line incorporating a first portion connected at a first end to the fuel tank and a second portion connected at a first end to the carburetor; comprising: A. a cylindrical valve interposed between the fuel tank and the fuel chamber of the carburetor having: (a) a first position permitting full flow of said first fuel component to said chamber; and (b) a second position permitting restricted flow of said first fuel component to said chamber, said valve having a first bore therethrough alignable with the fuel line to provide a full flow of fuel to the engine in its first position and having a second smaller bore therethrough alignable with the fuel line to provide a restricted flow of fuel to the chamber in its second position; B. a lock communicating with the valve controlling the movement of the valve between its first and second positions; and C. a housing installed between the second ends of the first and second portions of said fuel line incorporating: (a) an inlet port connected to the second end of the first portion of said fuel line, (b) an outlet port connected to the second end of the second portion of said fuel line, and (c) a cylindrical valve chamber conforming to said cylindrical valve so as to rotatably receive said valve; whereby the engine is fully operable when the valve is placed in its first, full flow position, and is restricted to continuous idling and short time duration full loading when the valve is placed in its second, restricted flow position.
Claim 11
Dependent Claim 316 words
Apparatus for preventing the theft of a motor vehicle having an engine utilizing first and second fuel components, said engine incorporating a fuel tank for storing the first fuel component and a carburetor for mixing the first and second fuel components, said carburetor having a fuel chamber for storing a small quantity of said fuel and a fuel line incorporating a first portion connected at a first end to the fuel tank and a second portion connected at a first end to the carburetor; comprising: A. a cylindrical valve interposed between the fuel tank and the fuel chamber of the carburetor having: (a) a first position permitting full flow of said first fuel component to said chamber; and (b) a second position permitting restricted flow of said first fuel component to said chamber, said valve having a first bore therethrough alignable with the fuel line to provide a full flow of fuel to the engine in its first position and having a second smaller bore therethrough alignable with the fuel line to provide a restricted flow of fuel to the chamber in its second position; B. a lock communicating with the valve controlling the movement of the valve between its first and second positions; and C. a housing installed between the second ends of the first and second portions of said fuel line incorporating: (a) an inlet port connected to the second end of the first portion of said fuel line, (b) an outlet port connected to the second end of the second portion of said fuel line, and (c) a cylindrical valve chamber conforming to said cylindrical valve so as to rotatably receive said valve; whereby the engine is fully operable when the valve is placed in its first, full flow position, and is restricted to continuous idling and short time duration full loading when the valve is placed in its second, restricted flow position.
Claim 12
Dependent Claim 115 words
Apparatus for preventing the theft of a vehicle as defined in claim 1 wherein said vehicle further comprises a fuel line incorporating a first portion connected at a first end to the fuel tank and a second portion connected at a first end to the carburetor, further comprising: C. a housing installed between the second ends of the first and second portions of said fuel line, incorporating: 1. an inlet port connected to the second end of the first portion of said fuel line, 2. an outlet port connected to the second end of the second portion of said fuel line, and 3. a valve chamber within the housing dimensioned to rotatably receive said valve.
Claim 13
Dependent Claim 177 words
Apparatus for preventing the theft of a motor vehicle having an engine utilizing first and second fuel components, said engine incorporating a fuel tank for storing the first fuel component and a fuel supplier for mixing the first and second fuel components, said fuel supplier having a fuel chamber for storing a small quantity of said first fuel, comprising: A. means interposed between the fuel tank and the fuel chamber of the fuel supplier having: (a) a first position permitting full flow of said first fuel component to said chamber; and (b) a second position permitting restricted flow of said first fuel component to said chamber; thereby permitting small time intervals of increased engine speed; and B. a lock communicating with said means for controlling the movement of said means between its first and second positions; whereby the engine is fully operable when the means is placed in its first, full flow position, and is restricted to continuous idling and short time duration increased engine speed when the means is placed in its second, restricted flow position.
Claim 14
Dependent Claim 177 words
Apparatus for preventing the theft of a motor vehicle having an engine utilizing first and second fuel components, said engine incorporating a fuel tank for storing the first fuel component and a fuel supplier for mixing the first and second fuel components, said fuel supplier having a fuel chamber for storing a small quantity of said first fuel, comprising: A. means interposed between the fuel tank and the fuel chamber of the fuel supplier having: (a) a first position permitting full flow of said first fuel component to said chamber; and (b) a second position permitting restricted flow of said first fuel component to said chamber; thereby permitting small time intervals of increased engine speed; and B. a lock communicating with said means for controlling the movement of said means between its first and second positions; whereby the engine is fully operable when the means is placed in its first, full flow position, and is restricted to continuous idling and short time duration increased engine speed when the means is placed in its second, restricted flow position.

References Cited (Backward Citations)

US1426308A Cited
US1638152A Cited
US2129575A Cited
US2881789A Cited
US3386461A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1981-04-17 1981-10-17 1982-04-18 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1985-04-17 1985-10-17 1986-04-18 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1989-04-17 1989-10-17 1990-04-18 $7700.00 Window Closed / Lapsed

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