Self-contained alert device
First Claim
1. A self-contained alert device for selective insertion between two adjacent and relatively movable separable parts of a closure and automatically providing a signal when removed from between said parts of said closure, said self-contained alert device comprising:
- A. a card-like member having at least two hinged flaps, said flaps being selectively foldable onto each other from an open position to a closed position;
B. spring means connected to said flaps and adapted to bias said flaps to open from said closed position to said opened position;
C. power supply means and signal emitting means mounted on said member;
D. switch means mounted on said member and characterized by being actuated when said flaps are in said open position; and
E. circuit means including said power supply means and said switch means connected to said signal-emitting means whereby said signal emitting means is activated upon said flaps being opened to said open position.
1 Assignment
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Accused Products
Abstract
A self-contained alert device for selective insertion between two adjacent and relatively movable separable parts of a closure. The device is passive when constrained by the closure but, when removed from the closure and therefore unconstrained, the device automatically energizes integral means for activating integral signal emitting means either locally or remotely or both locally and remotely. The device comprises in part a card-like member having at least two hinged flaps selectively foldable from an open to a closed position; integral spring means biasing the flaps apart; and integral switching means, signal emitting means, and power supply means.
34 Citations
13 Claims
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1. A self-contained alert device for selective insertion between two adjacent and relatively movable separable parts of a closure and automatically providing a signal when removed from between said parts of said closure, said self-contained alert device comprising:
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A. a card-like member having at least two hinged flaps, said flaps being selectively foldable onto each other from an open position to a closed position;
B. spring means connected to said flaps and adapted to bias said flaps to open from said closed position to said opened position;
C. power supply means and signal emitting means mounted on said member;
D. switch means mounted on said member and characterized by being actuated when said flaps are in said open position; and
E. circuit means including said power supply means and said switch means connected to said signal-emitting means whereby said signal emitting means is activated upon said flaps being opened to said open position. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification