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Security device for shopping carts and the like

  • US 5,881,846 A
  • Filed: 04/17/1997
  • Issued: 03/16/1999
  • Est. Priority Date: 04/17/1997
  • Status: Expired due to Term
First Claim
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1. A security apparatus for a shopping cart having a plurality of wheels, comprising:

  • a braking member for rotatably mounting on a wheel axle for movement between a raised position spaced above the ground surface and an operative position contacting the ground surface, the braking member having a portion projecting radially outwardly from the outer peripheral rim of the wheel at least in said operative position so as to lift the wheel from the ground and impede movement of a shopping cart;

    a locking device for releasably locking the braking member in the raised position; and

    a trigger device for releasing the locking device in response to a signal from an electrical signal system extending around an area in which carts are to be retained, whereby the braking member can rotate into the operative position.

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  • 6 Assignments
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