Cabinet with jam switch and alarm system专利检索-降压变压器变压器变压器和转换设备专利检索查询-专利查询网

Cabinet with jam switch and alarm system

阅读：333发布：2022-01-17

专利汇可以提供Cabinet with jam switch and alarm system专利检索，专利查询，专利分析的服务。并且An alarm system for use in protecting structures such as houses, apartments and the like, having movable access means such as doors and windows. A signal actuating means is movable between a preset position and a signal actuating position through a set position. The movement of the actuating means from the preset position to the set position and from the set position to the signal actuating position is timed through the action of a mechanical timer. A trigger means is provided for engaging and stopping the movement of the actuating means in the set position. A tripping means is connected to the trigger means and is associated with a detecting circuit. The opening of the access means controls the detecting circuit to actuate the tripping means whereby the trigger means is moved out of engagement with the actuating means to permit the actuating means to continue its cycle from the set position to the signal actuating position. A signaling means, such as a bell, is energized when the actuating means reaches the signal actuating position to energize a signal control circuit. In a preferred embodiment of the invention, a self-contained, portable, low voltage power supply is utilized to drive both the detecting circuit and signal control circuit. In a second preferred embodiment of the invention, a high voltage alternating current source is utilized in conjunction with a step-down transformer to energize the detecting circuit and signal control circuit.，下面是Cabinet with jam switch and alarm system专利的具体信息内容。

权利要求

1. In an alarm system for use in protecting window and door openings in a structure of the type employing jamb-responsive switches, a power supply, an alarm signal device and having no alarm de-energizing switch exterior of the structure, the combination of A. a cabinet including a channel member; B. a triggering assembly mounted within the cabinet and movable relative to the channel member, 1. said triggering assembly comprising a trigger bar which has a first end and a second end, a. said first end being pivotally connected to the said cabinet, b. said second end being slidingly restrained by the said channel member, c. said trigger bar being formed to provide an upstanding stop surface, d. said trigger bar being movable from a first position to a second position; C. a tripping means assembly associated with the triggering assembly, and including a solenoid, a coil spring and a connecting link, 1. said solenoid being movable from a first position to a second position in response to a function of a said jamb responsive switch, 2. said solenoid pulling the trigger bar about its said pivotal connection to its second second position when moved to its second position by function of a jamb operated switch, 3. said spring biasing between a portion of the cabinet and the trigger bar to continuously urge the trigger bar to its said first position; D. an actuating arm rotatably mounted upon the cabinet through a mechanical timer, 1. said actuating arm being rotatable from a pre-set position to a set position to an alarm actuating position through a timed cycle of operation, 2. said actuating arm being retained in the said set position by engagement against the said upstanding stop surface when the trigger bar is in its first position, 3. said actuating arm being rotated to its alarm actuating position when the solenoid pulls the trigger bar to its second position to disengage the actuating arm from the upstanding stop surface; and E. an alarm circuit including the power supply, the jamb responsive switches, the solenoid and the alarm signal device, 1. said alarm circuit including a normally open actuating switch, a. said actuating switch being closed by the actuating arm when the actuating arm is permitted to rotate to its alarm actuating position when the trigger bar is moved to its second position, b. said alarm signal device being powered to emit a warning sound when the actuating switch is closed.

2. said solenoid pulling the trigger bar about its said pivotal connection to its second second position when moved to its second position by function of a jamb operated switch,

2. said actuating arm being retained in the said set position by engagement against the said upstanding stop surface when the trigger bar is in its first position,

2. The invention of claim 1 wherein the first end of the trigger bar is pivotally connected to the cabinet by means of a cabinet mounted stationary pin interacting with an elongated slot provided in the said first end.

3. The invention of claim 2 wherein the trigger bar has both rotative movement and longitudinal movement relative to the said pin to positively insure disengagement of the trigger bar from the actuating arm when the solenoid functions to pull the trigger bar to its said second position.

3. said actuating arm being rotated to its alarm actuating position when the solenoid pulls the trigger bar to its second position to disengage the actuating arm from the upstanding stop surface; and E. an alarm circuit including the power supply, the jamb responsive switches, the solenoid and the alarm signal device,

3. said spring biasing between a portion of the cabinet and the trigger bar to continuously urge the trigger bar to its said first position; D. an actuating arm rotatably mounted upon the cabinet through a mechanical timer,

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Cabinet with jam switch and alarm system

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