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:
Nov. 15, 1994
Filed:
Sep. 30, 1993
James W Richmond, Carmel, IN (US);
Emerson Electric Co., St. Louis, MO (US);
Abstract
A household appliance, solenoid controlled, pilot actuated inlet water valve has a diaphragm insert with a bleed valve that substantially closes when a main valve is open to reduce water and contaminate flow through the bleed passage. The pilot valve outlet extension has openings to reduce vacuum drawn from the outlet into an actuation chamber thereby further reducing water flow through the bleed passage. The bleed passage is internally and externally configured to reduce contamination impairment. An anti-hammer rib or lip is placed on the pilot valve outlet extension upstream of a guide tip which provides less close-fitting surface that may be impaired by contaminates while still dampening valve closing to reduce valve noise and pipe hammer.