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. 12, 2002
Filed:
Sep. 14, 1998
Applicant:
Inventors:
Tuan Van Le, Diamond Bar, CA (US);
Christopher A. Coppock, Laguna Niguel, CA (US);
Assignee:
Fluidmaster, Inc., San Juan Capistrano, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 4/702 ; F16K 3/134 ;
U.S. Cl.
CPC ...
F16K 4/702 ; F16K 3/134 ;
Abstract
A toilet fill valve includes a housing defining a water fill passage and a water inlet. A valve disposed in the passage divides the housing into a upstream portion and a downstream portion. A pressure regulator vertically oriented in the downstream portion of the housing has a spiral configuration providing a significant pressure drop in the water flow. Noise abatement is enhanced by pressure regulation which reduces the flow velocity, flow directors which inhibit turbulence, and energy drops provided in a downspout.