School bus alarm system
First Claim
1. An alarm system for a bus having a plurality of passenger seats and an ignition switch with on and off conditions, said system comprising:
- alarm means for generating an alarm signals, said alarm means having a disarmed state in which said alarm means is disabled to prevent generation of the alarm signal and an armed state in which said alarm means is enabled to generate the alarm signal when he ignition switch is placed in the off condition after having been in the on condition;
means for effecting the armed state of said alarm means; and
an alarm disable switch for interrupting the alarm signal, said disable switch being located to the rear of the seats and being operated manually.
3 Assignments
0 Petitions
Accused Products
Abstract
An alarm system for vehicles such as school buses which forces the driver to walk through the vehicle to silence the alarm at the end of each route so that he will detect the presence of passengers remaining on board. An ignition relay is energized whenever the ignition switch is on. An arming relay for the alarm is energized when the door switch of the bus is first activated. An override relay is also energized when the door switch is first activated. Alternative circuits for the arming relay include one set of the override relay contacts and a disable switch for the alarm located at the back of the bus. The alarm sounds when the ignition switch is turned off and can be deactivated only by depressing the disable switch at the rear of the bus.
48 Citations
13 Claims
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1. An alarm system for a bus having a plurality of passenger seats and an ignition switch with on and off conditions, said system comprising:
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alarm means for generating an alarm signals, said alarm means having a disarmed state in which said alarm means is disabled to prevent generation of the alarm signal and an armed state in which said alarm means is enabled to generate the alarm signal when he ignition switch is placed in the off condition after having been in the on condition; means for effecting the armed state of said alarm means; and an alarm disable switch for interrupting the alarm signal, said disable switch being located to the rear of the seats and being operated manually. - View Dependent Claims (2, 3, 4, 5)
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6. In a passenger vehicle having plural rows of passenger seats and an ignition switch with on and off conditions, an alarm system comprising:
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alarm means for generating an alarm signal when enabled; means for effecting an armed state of said alarm means; means for enabling said alarm means in response to the ignition switch being placed in the off condition while the alarm means is in the armed state; and an alarm disable switch for disabling said alarm means, said disable switch being manually operated and being situated in the vehicle at a location accessible only to an operator who passes the passenger seats, whereby a passenger remaining in one of the seats will be noticed by the operator. - View Dependent Claims (7, 8, 9)
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10. An alarm system for a bus having a plurality of seats, an ignition switch with on and off conditions and a safety system with a door switch activated by opening a door of the bus, said alarm system comprising:
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alarm means for generating an alarm signal when enabled; means for arming said alarm means when the door switch has been activated and thereafter maintaining the armed state of the alarm means when the door switch is deactivated, said alarm means being in a condition to be enabled when in the armed state; means for enabling said alarm means when the ignition switch is placed in the off condition while the alarm means is in the armed state; and an alarm disable switch for disabling said alarm means, said disable switch being located in the rear of the bus behind the seats and being operated manually. - View Dependent Claims (11, 12, 13)
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Specification