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:
Feb. 26, 2002
Filed:
Oct. 08, 1999
Kenji A. Kingsford, Devore, CA (US);
Peter Nguyen, Garden Grove, CA (US);
Tom J. Sievers, Upland, CA (US);
Saint-Gobain Performance Plastics, Wayne, NJ (US);
Abstract
A dispense head assembly comprise a housing, and a body having a fluid inlet and outlet attached to the housing. A piston is disposed within the body and housing and is attached at one end to an actuating handle. A poppet/diaphragm is attached to the opposite piston end and includes an imperforate head, a thin-walled sleeve that extends axially away from the head, and a tongue that defines a terminal edge of the sleeve and that forms a leak-tight interference seal with the body. The poppet/diaphragm sleeve is rolled between opposite piston and assembly wall surfaces to provide open- and closed-flow poppet/diaphragm movement. A dip tube adapter is releasibly attached to the housing and body. A tongue and groove seal arrangement is used to form a leak-tight interference seal therebetween. A dip tube is attached to the second adapter body end to provide fluid pick-up from a fluid container to the dispense head assembly. A retainer ring is attached to the adapter body, and a handle mount is pivotably attached to the ring. The handle mount registers with the dispense head body when it is attached to the adapter, thereby providing a pivot end to the handle to permit piston movement and related open- and closed-flow poppet/diaphragm assembly operation.