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Matches 1 - 3 out of 3
Document
Document Title
7464797
Centrifugal brakes for wheels
A wheel assembly having a braking mechanism that is actuated by centrifugal force. The braking mechanism includes a rotating hub insert having a first pocket, a thread guard having a second pocket fixed relative to the frame of the wheel...
7420461
Caster-lock with dual receivers
A locking system for stopping a shopping cart includes a caster that can be selectively disabled when the cart encounters an electronic barrier. The caster includes a brake that is mounted on the frame of the caster. Also mounted on the ...
7406745
Wheel assembly
A wheel assembly has a swiveling shaft, a support member movably assembled with the swiveling shaft, an arresting member and wheels. The swiveling shaft includes a swiveling sleeve, a pressing element disposed on the swiveling sleeve, an...
Matches 1 - 3 out of 3
