← Back to Patent Explorer
US4041450A Expired / Lapsed US ⏱️ 0.0 years remaining

Intrusion alarm-ignition control system for a motor vehicle

Assignee: Lawrence Peska Associates Inc
•
Filing: 1975-04-10
•
Granted: 1977-08-09
•
Expires: 1995-04-10
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract An intrusion alarm ignition control system for a motor vehicle comprises a plurality activation switches adapted to be received in the frames of the doors, engine hood and trunk hood of the motor vehicle. Stop members are rotatably mounted in each frame, wherein the stop members prevent closure of the door, engine hood or trunk hood. Each stop member is activated by an electromagnetic element wired in series to each activation switch. An electric key lock switch contained in the body of the motor vehicle is wired in series to a transmitter unit having an antenna contained within the motor vehicle. Each of the series consisting of one activation switch and one electromagnetic element is wired in parallel between the battery of the motor vehicle and the electric key lock switch. An electromagnetic member is wired in series between the transmitter and the battery. A lever type electric switch adapted to be received in the ignition wire of the motor vehicle is open and closed by the electromagnetic member. A receiver unit of a stationary or pocket type is remotely located from the motor vehicle, wherein a signal device is associated with the receiver unit.

Inventors

  • 👤 James Knight

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 22:52
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/10; B60R25/102

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 375 words
An intrusion alarm ignition control system for a motor vehicle having a body with a plurality of doors and their associated frame and opening, a hood of said motor vehicle and its associated frame and opening, an engine hood and its associated frame and opening, an ignition wire communicating between a battery and an ignition switch of said motor vehicle, and each said associated frame having an elongated aperture therein, which comprises: a. a transmitter for transmitting a signal having an associated antenna adapted to be received in said motor vehicle; b. an electric key lock receivably disposed in said body of said motor vehicle; c. a plurality of activation switches adapted to be received in said frame, each said activation switch being activated upon opening of one of said doors, said engine hood, and said trunk hood; d. means for preventing closure of said doors, said engine hood, or said trunk hood, said means including an elongated bar having a pair of ends with a transverse central pin member extending through said elongated bar, the ends of said pin adapted to be rotatably received in said frame with said bar adapted to be rotatably received in said elongated aperture of said frame, an electromagnet element wired in series to each said activation switch, each said activation switch received in said aperture below one said end of said bar, a coil spring adapted to be received in each said aperture below said other end of each said bar and affixed onto said other end of said bar, and parallel circuits of each said series circuit of said electromagnet element and said activation switch wired between said battery and said electric key lock switch; e. means for preventing flow of current through said ignition wire upon activation of said activation switch, said means including an electromagnet member wired in series between said transmitter and said battery, a lever type electric switch member adapted to be received in said ignition wire, said electromagnetic member opening and closing said lever type electric switch upon the opening and closing of one of said activation switches; f. a receiver unit located remotely from said radio transmitter for receiving said signal; and g. a signal device associated with said receiver unit.
Claim 2
Dependent Claim 375 words
An intrusion alarm ignition control system for a motor vehicle having a body with a plurality of doors and their associated frame and opening, a hood of said motor vehicle and its associated frame and opening, an engine hood and its associated frame and opening, an ignition wire communicating between a battery and an ignition switch of said motor vehicle, and each said associated frame having an elongated aperture therein, which comprises: a. a transmitter for transmitting a signal having an associated antenna adapted to be received in said motor vehicle; b. an electric key lock receivably disposed in said body of said motor vehicle; c. a plurality of activation switches adapted to be received in said frame, each said activation switch being activated upon opening of one of said doors, said engine hood, and said trunk hood; d. means for preventing closure of said doors, said engine hood, or said trunk hood, said means including an elongated bar having a pair of ends with a transverse central pin member extending through said elongated bar, the ends of said pin adapted to be rotatably received in said frame with said bar adapted to be rotatably received in said elongated aperture of said frame, an electromagnet element wired in series to each said activation switch, each said activation switch received in said aperture below one said end of said bar, a coil spring adapted to be received in each said aperture below said other end of each said bar and affixed onto said other end of said bar, and parallel circuits of each said series circuit of said electromagnet element and said activation switch wired between said battery and said electric key lock switch; e. means for preventing flow of current through said ignition wire upon activation of said activation switch, said means including an electromagnet member wired in series between said transmitter and said battery, a lever type electric switch member adapted to be received in said ignition wire, said electromagnetic member opening and closing said lever type electric switch upon the opening and closing of one of said activation switches; f. a receiver unit located remotely from said radio transmitter for receiving said signal; and g. a signal device associated with said receiver unit.
Claim 3
Dependent Claim 14 words
A system as recited in claim 1, wherein said receiver is a stationary type.
Claim 4
Dependent Claim 14 words
A system as recited in claim 2, wherein said signal device is an alarm.
Claim 5
Dependent Claim 14 words
A system as recited in claim 2, wherein said signal device is a bell.
Claim 6
Dependent Claim 14 words
A system as recited in claim 2, wherein said signal device is a siren.
Claim 7
Dependent Claim 14 words
A system as recited in claim 2, wherein said signal device is a light.
Claim 8
Dependent Claim 15 words
A system as recited in claim 1, wherein said receiver unit is a pocket type.
Claim 9
Dependent Claim 16 words
A system as recited in claim 1, wherein said signal device is a pocket type receiver.

References Cited (Backward Citations)

US3893069A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-08-08 1981-02-07 1981-08-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-08-08 1985-02-07 1985-08-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-08-08 1989-02-07 1989-08-09 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag