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:
Aug. 30, 1994
Filed:
Jul. 14, 1993
Wilhelmus J Maas, Someren, NL;
Petrus L Hurkmans, Someren, NL;
AFA Products, Forest City, NC (US);
Abstract
The trigger operated pumping mechanism for a fluid dispensing device comprises a body extending rearwardly from a discharge end of the fluid dispensing device toward a hand gripping formation of the fluid dispensing device. The body has a hollow cylinder therein extending to a rear wall. A piston is received in the cylinder. A trigger is movably mounted to the body, has a front side and a back side, and is coupled to the piston. A biasing mechanism for biasing the trigger away from the body to bias the piston coupled to the trigger out of the cylinder is positioned between the body and the trigger. The biasing mechanism includes non-metal, non-coiled, elongate spring structure having opposite ends, extending rearwardly from the trigger toward the hand gripping formation, having one end positioned adjacent to and acting against the trigger and having another end positioned rearwardly of the trigger adjacent the body at a location which is closer to the rear wall of the cylinder than to the trigger.