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:
Jan. 09, 1990
Filed:
Apr. 11, 1988
Arthur H Yuan, Hudson, OH (US);
Michael S Joss, Chicago, IL (US);
Spalding & Evenflo Companies, Inc., Tampa, FL (US);
Abstract
An improved breast pump comprised of a manifold having a cavity and plurality of openings. A horn is positioned in one of the openings for coupling the mother's breast with the cavity. A first fixed cylinder is formed integrally with a second opening of the manifold with a second cylinder slidingly received over the first cylinder for effecting a pumping action therebetween to create a reduced pressure within the horn, cavity and cylinders. A third opening is for the coupling of a baby bottle therewith. A ball valve is located within the third opening whereby when the second cylinder is reciprocated with respect to the first cylinder and a vacuum created in the horn, cavity and cylinders, the ball valve will seal the third opening and the bottle from the cavity and suck milk from a mother's breast located in association with the horn.