US3893069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle alarm system
Assignee: Lee Raymond Organization Inc
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Filing: 1974-03-28
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Granted: 1975-07-01
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Expires: 1994-03-28
Abstract
Abstract A vehicle alarm system energizes a tone generator which produces a signal transmitted by a radio transmitter when any of the passenger compartment doors, trunk cover and engine cover are opened without authorization. The signal is picked up by a radio receiver.
Inventors
- 👤 Robert L Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:36
CPC Classifications
B; B60; B60R; B60R25/00; B60R25/10; B60R25/102
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
307 words
A vehicle alarm system for a vehicle having a battery, a passenger compartment having doors, a compartment lamp therein, a compartment circuit including the battery for electrically energizing the compartment lamp and a plurality of compartment switches, each at a corresponding one of the doors for closing the compartment circuit to energize the compartment lamp when a compartment door is opened, a trunk having a trunk cover, a trunk lamp therein, a trunk circuit including the battery for electrically energizing the trunk lamp, a trunk switch at the trunk cover for closing the trunk circuit to energize the trunk lamp when the trunk cover is opened, and an engine area for an engine, said engine area having an engine cover, an engine lamp therein, an engine circuit including the battery for electrically energizing the engine lamp and an engine switch at the engine cover for closing the engine circuit to energize the engine lamp when the engine cover is opened, said alarm system comprising radio transmitting means for transmitting signals; tone generating means connected to the transmitting means for producing signals and supplying the signals to the transmitting means for transmission; and energizing means coupling the tone generating means to the compartment, trunk and engine circuits for energizing the tone generating means to produce signals when a circuit is closed, the energizing means comprising power supply means connected to the battery for producing a voltage for energizing the tone generating means, a relay switch connected between the power supply means and the tone generating means for controlling the energization of the tone generating means and a relay winding connected in parallel with the compartment, trunk and engine lamps for controlling the operation of the relay switch for closing the relay switch to connect the tone generating means to the power supply means when a lamp is energized.
Claim 2
Dependent Claim
307 words
A vehicle alarm system for a vehicle having a battery, a passenger compartment having doors, a compartment lamp therein, a compartment circuit including the battery for electrically energizing the compartment lamp and a plurality of compartment switches, each at a corresponding one of the doors for closing the compartment circuit to energize the compartment lamp when a compartment door is opened, a trunk having a trunk cover, a trunk lamp therein, a trunk circuit including the battery for electrically energizing the trunk lamp, a trunk switch at the trunk cover for closing the trunk circuit to energize the trunk lamp when the trunk cover is opened, and an engine area for an engine, said engine area having an engine cover, an engine lamp therein, an engine circuit including the battery for electrically energizing the engine lamp and an engine switch at the engine cover for closing the engine circuit to energize the engine lamp when the engine cover is opened, said alarm system comprising radio transmitting means for transmitting signals; tone generating means connected to the transmitting means for producing signals and supplying the signals to the transmitting means for transmission; and energizing means coupling the tone generating means to the compartment, trunk and engine circuits for energizing the tone generating means to produce signals when a circuit is closed, the energizing means comprising power supply means connected to the battery for producing a voltage for energizing the tone generating means, a relay switch connected between the power supply means and the tone generating means for controlling the energization of the tone generating means and a relay winding connected in parallel with the compartment, trunk and engine lamps for controlling the operation of the relay switch for closing the relay switch to connect the tone generating means to the power supply means when a lamp is energized.
Claim 3
Dependent Claim
22 words
A vehicle alarm system as claimed in claim 1, further comprising radio receiving means for receiving signals transmitted by the transmitting means.
Claim 4
Dependent Claim
20 words
A vehicle alarm system as claimed in claim 2, wherein the radio transmitting and receiving means comprise a walkie-talkie set.
References Cited (Backward Citations)
US3703714A
Cited
US3786413A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-06-30 | 1978-12-30 | 1979-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-06-30 | 1982-12-30 | 1983-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-06-30 | 1986-12-30 | 1987-07-01 | $7700.00 | Window Closed / Lapsed |