US3728674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Burglar and personal protection alarm system for vehicles
Assignee: Fedtro Inc
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Filing: 1971-05-03
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Granted: 1973-04-17
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Expires: 1991-05-03
Abstract
Abstract An alarm system includes a signaling device and means for actuation thereof by any one of three methods: firstly, activation by means of removing a plunger switch, which, when removed, closes a normally open circuit; secondly, by means of a push switch which closes a circuit when depressed and opens a circuit when released, and thirdly, by means of an alarm switch. The system is intended for use in an automobile or the like wherein the plunger and push switches are located to be accessible to the driver of the automobile and the alarm switch is located, for instance, to be activated upon undesired opening of a door. Relay means are included in the circuits such that, particularly in the circuit associated with the alarm switch, the signaling device will continue to sound even after the door is closed.
Inventors
- 👤 R Kahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:41
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/10; B60R25/104; B60R25/1003; G; G08; G08B; G08B13/00; G08B13/02; G08B13/08
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
127 words
An alarm system for use with a source of power and a signalling device and for use in a vehicle comprising a signal initiation plunger mechanism, circuit means connecting said plunger mechanism to said signalling device, said plunger mechanism including a plunger switch movable between a first position and a second position, a push switch connected to said plunger mechanism, said plunger switch being operable in said first position to actuate said signalling device and supply a continuous alarm signal and said plunger switch being operable in said second position to circuit connect said push switch to said signalling device so that said push switch is operable to actuate said signalling device, and an alarm switch for actuating said signalling device to supply a continuous alarm signal.
Claim 2
Dependent Claim
127 words
An alarm system for use with a source of power and a signalling device and for use in a vehicle comprising a signal initiation plunger mechanism, circuit means connecting said plunger mechanism to said signalling device, said plunger mechanism including a plunger switch movable between a first position and a second position, a push switch connected to said plunger mechanism, said plunger switch being operable in said first position to actuate said signalling device and supply a continuous alarm signal and said plunger switch being operable in said second position to circuit connect said push switch to said signalling device so that said push switch is operable to actuate said signalling device, and an alarm switch for actuating said signalling device to supply a continuous alarm signal.
Claim 3
Dependent Claim
45 words
The invention according to claim 1 wherein said alarm system includes a push switch housing for housing said push switch, said housing including a hanger member for facilitating mounting of said push switch in said vehicle in accessible reach to the operator of said vehicle.
Claim 4
Dependent Claim
60 words
The invention according to claim 1 wherein said alarm system further includes a switch housing for housing said plunger mechanism, said switch housing including first and second walls, eaCh defining mounting openings therein, an annular sleeve extending between said openings, said sleeve defining an elongated opening connecting said wall openings for facilitating mounting of said plunger mechanism on said vehicle.
Claim 5
Dependent Claim
64 words
The invention according to claim 1 wherein said circuit means includes a relay sub-circuit and said alarm switch is operable to assume a normal position and an actuation position, said alarm switch for initiating signalling by said signalling device, said relay sub-circuit providing, after said alarm switch has been reset to a normal position, continuation of said signalling after initiation by said alarm switch.
Claim 6
Dependent Claim
45 words
The invention according to claim 4 wherein said alarm system further includes a lock switch operable by a key between an open and a closed position connected to said circuit means such that said continuation of said signaling is interrupted by opening said lock switch.
Claim 7
Dependent Claim
23 words
The invention according to claim 1 wherein said circuit means further includes a relay sub-circuit in parallel circuit relationship with said signaling device.
References Cited (Backward Citations)
US3197734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |