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Kitchen appliance for storing perishable goods

  • US 4,278,114 A
  • Filed: 05/14/1979
  • Issued: 07/14/1981
  • Est. Priority Date: 05/19/1978
  • Status: Expired due to Term
First Claim
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1. A kitchen appliance comprisingat least one container for perishable goods,a container lid sealingly connected with said container and provided with a check valve only permitting air flow out of the container, anda manually operable suction piston pump sealingly engageable with said lid,wherein the lid has an annular sealing rib embracing said check valve and adapted to engage an elastic sealing ring at the pump, andwherein the pump is designed such that a suction stroke acting upon its piston enhances the engagement between said sealing ring and said lid rib, the pump having a suction chamber adjacent the piston and progressively increasing in size in response to the suction stroke to draw air from the container, and the pump having a check valve connected with the suction chamber and only permitting expulsion of air to the ambient from the suction chamber.

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