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:
Jun. 04, 1985
Filed:
Feb. 10, 1983
Carl J Steigerwald, Wauconda, IL (US);
The Kendall Company, Boston, MA (US);
Abstract
A liquid drainage system comprising, a receptacle having a chamber to receive liquid, and a depending annular wall in an upper portion of the receptacle. The system has a valve comprising a cup-shaped member of elastic material having a lower wall extending across the cup-shaped member, an upper annular wall extending from the lower wall, with an upper portion of the valve annular wall being snugly received on a lower portion of the receptacle wall, and a hinge member extending outwardly from the cup-shaped member at one side of the lower wall. The cup-shaped member has a slit extending through the cup-shaped member to the hinge member at a location slightly above the lower wall. The slit defines a valve seat above the lower wall with the lower wall serving as a valve element which may sealingly engage against the seat, with the hinge member connecting the lower wall and valve annular wall.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile