Barrier and alarm for blocking a passageway
First Claim
1. An alarm system to detect movement of a body through a narrow egress, such as a supermarket aisle and the like, comprising a removable barrier, shaped to occupy only a portion of said egress when positioned therein, and a motion-sensitive alarm supported on said barrier, said alarm adapted to be triggered on movement thereof.
1 Assignment
0 Petitions
Accused Products
Abstract
The apparatus described herein is a chain with a warning sign attached to it, that incorporates an audible alarm signal which is activated when a person moves the chain away from an egress that it is blocking, such as a supermarket check-out lane. The apparatus solves the problem of how to block a check-out lane so as to draw attention to any patron who is exiting the store by way of an unattended check-out lane, yet is a device that can be easily discarded from the egress, in the event of an emergency. The unique sign incorporates circuitry within. In the preferred embodiment, the sign is a sandwich with outer layers that have something appropriate printed on them, such as "ALARMED EXIT--For Emergency Use Only", and the inner, hidden portion contains an audible alarm, a battery, an arming switch and position sensitive contacts for detecting when an unauthorized person tampers with the barrier. The ON/OFF switch is available on the outside of the sign, but the switch is recessed and hard to locate if you don'"'"'t know that it is there.
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Citations
13 Claims
- 1. An alarm system to detect movement of a body through a narrow egress, such as a supermarket aisle and the like, comprising a removable barrier, shaped to occupy only a portion of said egress when positioned therein, and a motion-sensitive alarm supported on said barrier, said alarm adapted to be triggered on movement thereof.
- 7. An alarm system to detect movement of a body through a narrow egress, such as a supermarket aisle and the like, comprising a removable barrier including a flexible member having at least one end that is readily disengageable from a support, and a motion-sensitive alarm supported on said barrier, said alarm adapted to be triggered on movement thereof.
- 10. A method of preventing undetected egress from a supermarket aisle and the like through a normal egress such as a check-out aisle unmonitored by humans, comprising, extending a readily removable barrier across only a portion of said egress and attaching a motion-sensitive alarm to said barrier so that movement of said barrier triggers said alarm.
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13. An alarm system to detect movement of a body through an aisle defined by at least two spaced-apart walls, said alarm system comprising, a removable barrier, the barrier attached to said walls across the aisle, and a motion-sensitive alarm supported on said barrier,
said barrier shaped to occupy a portion of said aisle when positioned therein, said alarm adapted to be triggered on movement of the barrier.
Specification