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:
Jul. 03, 2001
Filed:
Nov. 04, 1999
Thomas Dean Nelson, Maplewood, MN (US);
Douglas Grinnell Anderson, St. Paul, MN (US);
Ross Austin Mackert, St. Louis Park, MN (US);
Ecolab Inc., St. Paul, MN (US);
Abstract
A housing has a first, dispensing end and a second, opposite end. A lever is squeezed against the housing to move a plunger toward the dispensing end. When fully squeezed, the lever extends parallel to the plunger and the longitudinal axis of the housing. The extent to which the plunger advances may be adjusted by relocating the pivot axis defined between the lever and the housing. A resilient washer is mounted on the shaft of the plunger and disposed behind a shoulder on the housing. The resilient washer deflects and/or stretches forward when the plunger advances, and urges the plunger rearward upon release of the lever.