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. 07, 2018
Filed:
Apr. 14, 2015
Applicants:
Ashia M. Pollen, Madison, WI (US);
Robert J. Harter, La Crosse, WI (US);
Inventors:
Ashia M. Pollen, Madison, WI (US);
Robert J. Harter, La Crosse, WI (US);
Assignee:
Other;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61M 1/06 (2006.01); A61M 1/00 (2006.01);
U.S. Cl.
CPC ...
A61M 1/06 (2013.01); A61M 1/0037 (2013.01); A61M 1/0049 (2013.01); A61M 1/064 (2014.02);
Abstract
A breast pump system includes a flexible vinyl suction tube that connects a milk collection device to a vacuum pump. If a milk droplet accidentally backflows into the suction tube, a supplementary opening injects tiny volumes of air sequentially into the vacuum pump or into the suction tube near the pump. As the vacuum pump operates in a cyclical manner, the injected air returns the droplet in sequential steps back to the milk collection device.