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:
Mar. 14, 1995
Filed:
Sep. 28, 1993
Applicant:
Inventor:
Brian R Law, Leicester, GB;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B67D / ;
U.S. Cl.
CPC ...
222383 ;
Abstract
A dispenser pump has a base incorporating an intake tube, an axially-upright cylindrical pump body fixed on top of the base by a screw-threaded engagement, and a cap plunger having a piston which sweeps the interior of the body. A discharge spout opens from a discharge opening adjacent the base. Both the outlet and inlet openings are valved by a one-piece valve body in the form of a free-standing sleeve resting on the base, with a peripheral lip forming the outlet valve at one end of the sleeve and a radially-inward projection forming the inlet valve as a flexible flap. The body and base are separable to release the valve body for easy cleaning.