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. 05, 1988
Filed:
Sep. 02, 1986
Guy Leclerc, Charlesbourg, CA;
Other;
Abstract
A check valve for removably fitting the mouth of an invertible water bottle to be placed on a water dispenser, the bottle being made of synthetic resin and provided with an external circular rib at its mouth. The valve closes the mouth during water-bottle inversion until the check valve contacts an element of the water dispenser when the bottle is in inverted position and rests on a water dispenser. The check valve includes a cylindrical body adapted to be removably fitted over the water bottle mouth and having an outer closure wall provided with a central opening forming a tapered female valve seat. The check valve further includes a male valve member part having a disc-like head axially movable within the body between the mouth and the closure wall, a stem secured to the head and extending through the central opening of the closure wall, and a tapered male valve seat portion integral with the stem and adjacent the head. Upon water-bottle inversion, the water in the bottle acts upon the valve head to close the valve. An inward force exerted on the stem opens the valve.