The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 18, 2020
Filed:
Feb. 09, 2016
Medela Holding Ag, Baar, CH;
Mario Rigert, Buchrain, CH;
René Fischer, Zurich, CH;
MEDELA HOLDING AG, Baar, CH;
Abstract
A breast pump for pumping human breast milk has a flexible pumping membrane and a stiff cap, which can be fitted onto said pumping membrane, this resulting in the formation of a pumping chamber for generating a negative pressure. The cap can be, or is, connected to a breast-shield unit via a suction line. The pumping membrane has an encircling collar with a step and a laterally projecting protrusion. The cap has, on its inner side, an encircling abutment region and also at least one form-fitting element, which is spaced apart from the encircling abutment region and establishes a form fit with the protrusion of the pumping membrane. The cap is positioned with a snap fit on the pumping membrane. In the abutment region (), it establishes a joint frictional fit with a step of the pumping membrane and thus forms a seal. The snap-fit positioning of the cap on the pumping membrane is sufficient for the cap to be retained with sealing action on the pumping membrane.