Patent ID: 6271755
Filing Date: 2001-08-07
Classification: B62B

Abstract:
An anti-theft system for a shopping cart, comprising:(a) a collapsible front suspension mounted between the front side members of a base frame of the shopping cart, said front suspension including a support, a first set of casters mounted to said support, retractable pin means carried by said support and engagable with said side members of said base frame for maintaining said front suspension in an operative mode in which said first set of casters engage a supporting surface, a sensor for detecting a first external signal, means functionally coupled to the sensor for transmitting an activation signal to said retractable pin means to cause retraction of said pin means and render said front suspension inoperative, and(b) a second set of casters, fixed to said base frame, for preventing said cart from moving in a linear direction, when said front suspension is rendered inoperative.