Window mounted automobile security alarm
First Claim
Patent Images
1. A portable automobile alarm apparatus removably hangable on the top edge of a side window of an automobile and comprising;
- a pair of first and second elongated coextensive housings, said first housing including an actuation compartment and said second housing including an alarm compartment formed in one side with a sound grille;
a pair of spaced apart resilient bumpers mounted on a wall of said first housing facing toward said second housing;
a tamper sensor in said first housing responsive to tampering with said actuation compartment to generate a tamper signal;
a dry cell battery in said first housing;
an electrical circuit in said first housing connected with said battery and said tamper sensor and responsive to said tamper signal to generate an alarm signal;
a power supply circuit in said first housing, coupled to said electrical circuit for coupling to a 12 volt battery source;
an alarm device in said second housing and including an acoustic driver operative in response to said alarm signal to generate an acoustic alarm to propagate through said grille;
a plurality of insulated electrical leads leading from said electrical circuit out of said first housing and into said second housing to connect with said alarm device for communicating said alarm signal; and
a pair of flat U-shaped hanger springs for hanging over said top edge and carrying on their respective opposite ends said first and second housings, said springs sandwiching therebetween said plurality of electrical leads and configured to enable said housings to be spread apart for receipt over said top edge to mount said alarm apparatus from said window and said power supply circuit either connected to said 12 volt battery source or to said dry cell battery for operating by either said dry cell battery or said 12 volt battery source.
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Accused Products
Abstract
A portable automobile alarm hung over the top of an automobile side window is secured in place by raising the window into its frame. The portion of the unit positioned on the interior side of the glass contains a sensor, a receiver, and associated electronic circuitry. The exterior unit houses an alarm siren. The unit is powered from an internal battery or from a cigarette lighter. The unit may be armed and disarmed by a remote transmitter.
46 Citations
17 Claims
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1. A portable automobile alarm apparatus removably hangable on the top edge of a side window of an automobile and comprising;
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a pair of first and second elongated coextensive housings, said first housing including an actuation compartment and said second housing including an alarm compartment formed in one side with a sound grille; a pair of spaced apart resilient bumpers mounted on a wall of said first housing facing toward said second housing; a tamper sensor in said first housing responsive to tampering with said actuation compartment to generate a tamper signal; a dry cell battery in said first housing; an electrical circuit in said first housing connected with said battery and said tamper sensor and responsive to said tamper signal to generate an alarm signal; a power supply circuit in said first housing, coupled to said electrical circuit for coupling to a 12 volt battery source; an alarm device in said second housing and including an acoustic driver operative in response to said alarm signal to generate an acoustic alarm to propagate through said grille; a plurality of insulated electrical leads leading from said electrical circuit out of said first housing and into said second housing to connect with said alarm device for communicating said alarm signal; and a pair of flat U-shaped hanger springs for hanging over said top edge and carrying on their respective opposite ends said first and second housings, said springs sandwiching therebetween said plurality of electrical leads and configured to enable said housings to be spread apart for receipt over said top edge to mount said alarm apparatus from said window and said power supply circuit either connected to said 12 volt battery source or to said dry cell battery for operating by either said dry cell battery or said 12 volt battery source. - View Dependent Claims (2, 3, 4)
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5. A portable automobile alarm apparatus removably hangable on the top edge of a side window of an automobile and comprising:
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a pair of first and second elongated coextensive housings, said first housing including an actuation compartment, said second housing including an alarm compartment formed in one side with a sound grille; a pair of spaced apart resilient bumpers mounted on the wall of said first housing adjacent said second housing; a tamper sensor in said first housing responsive to tampering with said actuation compartment to generate a tamper signal; an electrical circuit in said first housing including a dry cell battery supply circuit and responsive to said tamper signal to generate an alarm signal, and further responsive to a predetermined receiver signal to terminate said alarm signal; an alarm device in said second housing and including an acoustic driver for generating an audible alarm signal for propagation through said grille; a remote transmitter including a switch actuable to generate an RF transmitter signal; a receiver in said first housing connected with said electrical circuit and responsive to said RF transmitter signal to generate said predetermined receiver signal; a plurality of insulated electrical leads leading from said electrical circuit out of said first housing and into said second housing to connect with said alarm device for communication an alarm signal; and a pair of flat U-shaped hanger springs for hanging over said top edge and carrying on their respective opposite ends said first and second housings, said springs sandwiching therebetween said plurality of electrical leads and configured to enable said housings to be spread apart for receipt over said top edge. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12, 13)
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14. A portable automobile alarm apparatus removably hangable on the top edge of a side window of an automobile and comprising:
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a pair of first and second elongated coextensive housings, said first housing including an actuation compartment and said second housing including an alarm compartment formed in one side with a sound grille; a pair of spaced apart resilient bumpers mounted on the wall of said first housing adjacent said second housing; a tamper sensor in said first housing responsive to tampering with said actuation compartment to generate a tamper signal; a dry cell battery circuit in said first housing; an electrical circuit in said first housing connected with said dry cell battery circuit and tamper sensor and responsive to said tamper signal to generate an alarm signal; an oscillator circuit in said first housing, connected with said electrical circuit and responsive to said tamper signal to generate an oscillator signal, an amplifier circuit connected to said oscillator circuit and responsive to said oscillator signal to condition said oscillator signal into said alarm signal and a control switch mounted through said first housing; a control circuit connected with said switch and electrical circuit and responsive to actuation of said control switch to disable said oscillator signal; an alarm device in said second housing responsive to said alarm signal to generate a driver signal; an acoustic transducer in said second housing, connected to said alarm device and responsive to said driver signal to generate said acoustic alarm; a plurality of insulated electrical leads leading from said electrical circuit out of said first housing and into said second housing to connect with said alarm device for communication of said alarm signal; and a pair of flat U-shaped hanger springs for hanging over said top edge and carrying on their respective opposite ends said first and second housings. - View Dependent Claims (15, 16, 17)
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Specification