Single handle lid opening, closing and locking mechanism for...

Details Single handle lid opening, closing and locking mechanism for... Single handle lid opening, closing and locking mechanism for...

A - Human Necessities

47

J

65/22

A47J 47/00 (2006.01) A47J 27/08 (2006.01)

Patent

CA 2007065

ABSTRACT A single handle-actuated lid opening, closing, and locking mechanism for a large capacity pressure cooker having an open-top cooking vat and a counter-balanced lid shiftable vertically between a vat open and a vat closed position. The mechanism comprises a pair of slotted hook arms mounted to either side of the vat. A cam bar extends transversely of the vat lid and is provided with a forwardly extending arm near each of its ends. The forward ends of the arms are joined by a bar constituting a handle in parallel spaced relationship to the cam bar. The ends of the cam bar support rollers receivable within the slots of the hook arms. The cam bar is manually shiftable by the handle between a forward lid locking position and a rearward unlocking and lid engaging position. In its forward lid-locking position, the cam bar assumes an over-center orientation with its rollers bearing upwardly against the upper surfaces of the hook arm slots and the cam bar body bearing downwardly against the lid. In its rearward unlocked and lid engaging position, the cam bar is rigidly coupled to the lid so that upward and downward forces applied to the handle result in vertical upward and downward movement of the lid between its vat open and its vat closed positions. A cam bar lock precludes unlocking and opening of the lid when the vat is pressurized.

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