Door alarm
First Claim
1. A door alarm including:
- (a) a housing adapted to be mounted on a door adjacent the hinged edge of said door;
(b) audible alarm means contained within the housing;
(c) an actuator block adapted to be mounted on the door frame adjacent the alarm means housing;
(d) conductor means operatively connected to the alarm means and extending between the alarm means and actuator block;
(e) lever means mounted on the housing and connected to the alarm means and cooperatively engageable with the actuator block and conductor means, with said lever means being movable upon opening of the door to contact the conductor means at the actuator block and actuate the alarm means; and
(f) means provided on the actuator block to maintain contact between the lever means and conductor means once the alarm means is actuated to keep the alarm means actuated upon closing movement of the door.
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Accused Products
Abstract
An improved door alarm which is mounted on the inside of a door adjacent the hinged edge thereof sounds an audible alarm when the door is opened. A housing containing a buzzer and a battery is mounted on the door by a pressure-sensitive adhesive. An arming lever is pivotally mounted on the housing and together with a conductor extends outwardly therefrom and operatively engages an actuator block which is mounted on the door frame adjacent the alarm housing. The lever and conductor are operatively connected with the battery and buzzer to form an alarm circuit which will actuate the buzzer when brought into contact with each other at the actuator block. The actuator block has an insulated shelf with which a hooked end of the arming lever is engaged when the alarm is armed and an alarm actuating zone wherein the lever end disengages the shelf and engages an end of the conductor located therein to complete the alarm circuit and actuate the buzzer. The shelf has an undercut into which the hooked end of the lever moves if the door is closed after the buzzer has been actuated to maintain contact between the lever end and conductor to keep the buzzer sounding. The actuator block has an adjustable top wall on which the lever end can be placed when the occupant leaves the protected dwelling so that when the door closes, the lever end engages the shelf to arm the alarm for actuation when the door is next opened.
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Citations
17 Claims
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1. A door alarm including:
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(a) a housing adapted to be mounted on a door adjacent the hinged edge of said door; (b) audible alarm means contained within the housing; (c) an actuator block adapted to be mounted on the door frame adjacent the alarm means housing; (d) conductor means operatively connected to the alarm means and extending between the alarm means and actuator block; (e) lever means mounted on the housing and connected to the alarm means and cooperatively engageable with the actuator block and conductor means, with said lever means being movable upon opening of the door to contact the conductor means at the actuator block and actuate the alarm means; and (f) means provided on the actuator block to maintain contact between the lever means and conductor means once the alarm means is actuated to keep the alarm means actuated upon closing movement of the door. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. Door alarm construction including:
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(a) a housing adapted to be mounted on a door adjacent the hinged edge of the door; (b) battery-operated alarm means located within the housing; (c) a metallic lever pivotally mounted on the housing and operatively connected to the alarm means, said lever means being movable between armed and disarmed positions; (d) an actuator block adapted to be mounted on a door frame adjacent the housing; (e) a metallic coil spring connected at one end to the housing and alarm means and at other end to the actuator block; and (f) the lever having an extended end engageable with the actuator block when in armed position, whereupon opening movement of the door moves said extended end into engagement with the other end of the coil spring to actuate the alarm means. - View Dependent Claims (15, 16, 17)
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Specification