Position sensitive alarm with magnetic latching pendulum switch

Claim 2

An alarm device comprising, a housing having a top portion, bottom portion, and front and back portions, a signal means in said housing, a battery means in said housing, a normally open switch means in said housing, said signal means, battery means and said switch means being electrically connected, said switch means adapted to close and energize said signal means when said housing means is disposed in a predetermined attitude, said switch means comprising, a stationary first switch element and a pendulum switch element pivotally mounted in said housing adapted to close upon said first switch element when said housing is disposed in said predetermined attitude, and a dial member rotatably mounted on said front portion which has a hub means extending therefrom inwardly into said housing, said dial member having means on its hub means for operative engagement with said pendulum switch element so that said pendulum can be selectively maintained in its open position with respect to said First switch element.

Claim 3

The device of claim 1 wherein said pendulum switch element has first and second end portions connected by an intermediate portion, said one end portion having a conductor means thereon for engagement with said first switch element, said pendulum switch element being pivotally connected to said housing between said first and second end portions, said means on said hub means of said dial member being selectively operatively engageable with said second end portion of said pendulum switch element to move said pendulum switch to said open position.

Claim 4

The device of claim 2 wherein said dial member is rotatably mounted and vertically movably mounted on said front portion of said housing and wherein a disc member is mounted on said hub means of said dial member in said housing, said disc member having a hub means extending therefrom which may be positioned so as to be in the pivotal path of said second end portion, said disc member having a first slot formed therein extending radially inwardly into the periphery thereof, and a second arcuate slot formed in said disc member inwardly of the periphery thereof having one end thereof communicating with said first slot, a pin means extending from said housing adapted to be received by said first slot when said dial member has been rotated to a predetermined position thereby permitting said dial member to be vertically moved to move said hub means of said disc member in the pivotal path of said pendulum switch element second end portion.

Claim 5

The device of claim 3 wherein the position of said pin means and said first slot is such that said dial member cannot be vertically moved unless said dial member is rotated to said predetermined position to cause said disc member hub means to engage said second end portion of said pendulum switch element to move said pendulum switch element to its open position.

Claim 6

An alarm device comprising, a housing having a top portion, bottom portion, and front and back portions, a signal means in said housing, a battery means in said housing, a normally open switch means in said housing, said signal means, battery means and said switch means being electrically connected, said switch means adapted to close and energize said signal means when said housing means is disposed in a predetermined attitude, said switch means comprising, a stationary first switch element and a pendulum switch element pivotally mounted in said housing adapted to close upon said first switch element when said housing is disposed in said predetermined attitude, said first switch element and said pendulum switch element having a magnet means thereon which causes said pendulum switch to close upon said first switch element when said housing is moved towards its said predetermined attitude and which yieldably maintains said pendulum switch element in said closed position, said first switch element comprising, first and second spaced apart terminal strips, said pendulum switch element having a conductor means thereon adapted to engage both of said terminal strips to close the switch means when said housing is moved to said predetermined attitude.

Claim 7

An alarm device comprising, a housing having a top portion, bottom portion, and front and back portions, a signal means in said housing, a battery means in said housing, a normally open switch means in said housing, said signal means, battery means and said switch means being electrically connected, said switch means adapted to close and energize said signal means when said housing means is disposed in a predetermined attitude, said switch means comprising, a stationary first switch element and a pendulum switch element pivotally mounted in said housing adapted to close upon said first switch element when said housing is disposed in said predetermined attitude, said first switch element and said pendulum switch element having a magnet means thereon which causes said pendulum switch to close upon said first switch element when said housing is moved towards its said predetermined attitude and which yieldably maintains said pendulum switch element in said closed position, said first switch element comprising, first and second spaced apart terminal strips, said pendulum switch element having a conductor means thereon adapted to engage both of said terminal strips to close the switch means when said housing is moved to said predetermined attitude.