Daniel J Drake

US Patent:

45249857, Jun 25, 1985

Filed:

Apr 12, 1983

Appl. No.:

6/484219

Inventors:

Daniel Drake - Berkeley CA

International Classification:

B62B 3900

US Classification:

280 3399C

Abstract:

An arrest device for a wheeled cart, such as a supermarket shopping cart. The device includes a hook and structure mounting the hook on the cart for swinging thereon in a front-to-back direction. The region where such swinging occurs is shiftable between lowered and raised positions to permit the hook to "walk" over surface irregularities by a compound swinging/shifting movement. In one embodiment, the mounting structure includes a leg pivotably attached at one end to the cart and at its other end to the hook. In another embodiment, the hook and connecting structure are formed as a unitary member having a slot which accomodates both swinging and vertical shifting of the hook with respect to the cart. In still another embodiment, the connecting structure takes the form of a spring which is continuously flexible in a front-to-back direction with respect to the cart.