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US 10,226,783 B2Granted
Pump device and methods for making the same
AssigneeSilgan Dispensing Systems R&D Netherlands B.V.
InventorsEelco Han de Man, Stefan Koster
Life of this patent
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Abstract
Bellow actuated pump devices for dispensing a product from a container may include a bellow and a base or a bellow, a base, and a valve having two or more valves wherein actuation of the bellow opens a discharge portion of the valve and dispenses a product and the de-actuation of the bellow opens an intake portion of the valve and refills the pump for the next actuation.
Claims5
A pump device, comprising:
- a base having an inlet opening and an outlet opening;
- an attachment adapter fitted to the inlet opening of the base;
- an elastomeric molded valve fitted within an interior chamber of the base between the attachment adapter and the outlet opening, wherein the valve comprises;
- a valve stem;
- an outlet valve on one end of the valve stem, said outlet valve being seated with and sealed against the outlet opening in the base when the pump device is at rest;
- a flexible valve disc on an end of the valve stem opposite the outlet valve;
- at least one valve rim positioned on the valve disc on a side opposite the outlet valve being seated with and sealed against the attachment adapter when the pump device is at rest;
- and
- a domed bellow in communication with at least a portion of the interior chamber of the base.
6 more elements
Dependencies are inferred from the claim text.