Alarm indicating dislocation of fire extinguisher
First Claim
1. An alarm for detection of dislocation of a portable fire extinguisher from a relatively stationary storage post comprising:
- a substantially enclosed alarm housing having an audible alarm and means for energizing said alarm enclosed therein, and said housing further including a tubular passageway open at one end to the exterior of the housing;
switch means for activating said energizing means comprising an elongated, flexible member, a first free end of said elongated member being slidably receivable in said tubular passageway, and a means fixedly positioned with respect to said tubular passageway responsive to the position of said first end for activating and deactivating said energizing means so that with said flexible member inserted in said tubular passage to a position merely adjacent to, but not in electrical contact with said responsive means, said switch means deactivates said energizing means and so that with said flexible member spaced apart from said responsive means, said switch means activates said energizing means; and
said alarm housing being fixed relative to one of said fire extinguisher or said relatively stationary post, and a second end of said elongated member being fixed to a structural element displaceable with respect to said one of said fire extinguisher or said stationary post.
1 Assignment
0 Petitions
Accused Products
Abstract
An alarm device for a fire extinguisher to detect when the fire extinguisher is removed from its storage post includes a flexible cable which is slidably insertable within a guide passage between the permanent magnet and a reed switch. One end of the cable is inserted into an alarm housing which contains the reed switch and magnet while the other end of the cable is fixedly secured to a fire extinguisher of the stationary support post. In the first instance, the alarm housing is secured to the stationary storage post while in the second case the alarm unit 16 is secured by a harness to the fire extinguisher itself. In either case, movement of the fire extinguisher causes the flexible cable to withdraw from the alarm housing and closed the reed switch to complete a circuit which produces an audible alarm signal.
85 Citations
10 Claims
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1. An alarm for detection of dislocation of a portable fire extinguisher from a relatively stationary storage post comprising:
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a substantially enclosed alarm housing having an audible alarm and means for energizing said alarm enclosed therein, and said housing further including a tubular passageway open at one end to the exterior of the housing; switch means for activating said energizing means comprising an elongated, flexible member, a first free end of said elongated member being slidably receivable in said tubular passageway, and a means fixedly positioned with respect to said tubular passageway responsive to the position of said first end for activating and deactivating said energizing means so that with said flexible member inserted in said tubular passage to a position merely adjacent to, but not in electrical contact with said responsive means, said switch means deactivates said energizing means and so that with said flexible member spaced apart from said responsive means, said switch means activates said energizing means; and said alarm housing being fixed relative to one of said fire extinguisher or said relatively stationary post, and a second end of said elongated member being fixed to a structural element displaceable with respect to said one of said fire extinguisher or said stationary post. - View Dependent Claims (2, 3, 4, 5, 6)
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7. An alarm for detection of dislocation of a portable fire extinguisher from a relatively stationary storage post comprising:
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a substantially enclosed alarm housing having an audible alarm and means for energizing said alarm enclosed therein, and said housing further including a curved tubular passageway open at one end to the exterior of the housing; switch means for activating said energizing means comprising an elongated, flexible member, a first end of said elongated member being slidably receivable in said tubular passageway, and a means fixedly positioned with respect to said tubular passageway responsive to the position of said first end for activating and deactivating said energizing means so that with said flexible member inserted in said tubular passage adjacent said responsive means, said switch means deactivates said energizing means and so that with said flexible member spaced apart from said responsive means, said switch means activates said energizing means; and said alarm housing being fixed relative to one of said fire extinguisher or said stationary post, and a second end of said elongated flexible member being fixed to a structural element displaceable with respect to said one of said fire extinguisher or stationary post.
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8. An alarm for detection of dislocation of a portable fire extinguisher from a relatively stationary storage post comprising:
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a substantially enclosed alarm housing having an audible alarm and means for energizing said alarm enclosed therein, and said housing further including a tubular passageway open at one end to the exterior of the housing; switch means for activating said energizing means comprising an elongated, flexible member, a first end of said elongated member being slidably receivable in said tubular passageway, and a means fixedly positioned with respect to said tubular passageway responsive to the position of said first end for activating and deactivating said energizing means so that with said flexible member inserted in said tubular passage adjacent said responsive means, said switch means deactivates said energizing means and so that with said flexible member spaced apart from said responsive means, said switch means activates said energizing means; said alarm housing being fixed relative to one of said fire extinguisher or said stationary post, and a second end of said elongated member being fixed to a structural element displaceable with respect to said one of said fire extinguisher or said stationary post; and wherein said fire extinguisher includes a handle, a spray head housing, means for pivotally securing said handle to said spray head housing and registering apertures in said handle and spray head housing adapted to receive a locking pin therethrough for locking the handle in its inoperative position on the spray head, and wherein said flexible member is slidably insertable within said registering apertures to form said locking pin.
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9. An alarm for detection of dislocation of a portable fire extinguisher from a relatively stationary storage post comprising:
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a substantially enclosed alarm housing having an audible alarm and means for energizing said alarm enclosed therein, and said housing further including a tubular passageway open at one end to the exterior of the housing; switch means for activating said energizing means comprising an elongated, flexible member, a first end of said elongated member being slidably receivable in said tubular passageway, and a means fixedly positioned with respect to said tubular passageway responsive to the position of said first end for activating and deactivating said energizing means so that with said flexible member inserted in said tubular passage adjacent said responsive means, said switch means deactivates said energizing means and so that with said flexible member spaced apart from said responsive means, said switch means activates said energizing means; and said alarm housing being fixed relative to one of said fire extinguisher or said stationary post, and a second end of said elongated member being fixed to a structural element displaceable with respect to said one of said fire extinguisher or said stationary post; and wherein said responsive means further comprises a reed switch disposed on one side of said tubular passageway and a permanent magnet disposed on the opposite side of said tubular passageway adjacent said reed switch, and wherein said flexible member is made of a material having a magnetic permeability greater than air. - View Dependent Claims (10)
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Specification