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US 4,846,493 AGranted
Portable cooler with retractable wheels
OwnerDonald W. Masoninventor
Life of this patent
Estimating the term…
Abstract
A portable cooler includes a pair of wheels which are retractable into a pair of recesses in the main body of the cooler. The wheels pivot on frames which are connected by a horizontally-oriented rod, the rod being lockable in hook members in a retracted position and in an operable position. An extendable handle is attached to the forward end of the cooler to pull the cooler along the ground on its wheels.
Claims6
A portable cooler, comprising:
- a hollow, main body having forward and rearward ends and an open top;
- a lid for selectively closing said open top;
- a recess in each corner of the lower rearward end of said cooler for receiving a wheel;
- a pair of wheels, each rotatably mounted on a frame connected to said body, each said frame pivotally connected to said body for pivoting said wheels means between a lower operable position and an upper retracted position;
- a horizontally-oriented rod connected between said frame means and vertically movable along the rearward end of said body so as to simultaneously pivot both said frame means between said operable and retracted positions;
- means for selectively locking said wheels in said operable position, including first rod-holding means mounted on the lower end of said rearward end of the main body for holding said rod and wheels in said operable position;
- means for selectively locking said wheels in said retracted position including second rod-holding means mounted above said first rod-holding means and adapted to hold said rod and wheels in said retracted position;
- means connected to said cooler for pulling the same when the wheels are in the operable position.
5 more elements
Dependencies are inferred from the claim text.