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US 4,278,114 AGranted
Kitchen appliance for storing perishable goods
AssigneeZyliss Zysset AG
InventorRichardt E. Ruberg
Life of this patent
Estimating the term…
Abstract
A container with an air tight lip incorporating a check valve for only evacuating air from the container by a piston suction pump sealed against the lip and around the check valve; the pump being arranged to receive manual pressure to produce the suction stroke and to simultaneously enhance the seal between the lip and the pump.
Claims10
A kitchen appliance comprising
- at 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, and
- a 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, and
- wherein 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.
2 more elements
Dependencies are inferred from the claim text.