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. 24, 1998
Filed:
Jan. 23, 1997
Applicant:
Inventor:
Shahriar Nick Niakan, Woodland Hills, CA (US);
Assignee:
Emhart Inc., Newark, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05D / ;
U.S. Cl.
CPC ...
137 98 ; 92 99 ;
Abstract
A valve assembly 30 having a pressure balancer 38 disposed in a housing 32 in which is formed a chamber 48. A one-piece poppet unit 46 is mounted for movement in the chamber 48. The poppet unit 46 has a shaft 51 with a circular disc 106 to which is bonded a diaphragm 56 and a pair of poppets 52 and 54 formed at either end thereof. The diaphragm 56 divides the chamber to form a compartment on either side thereof in which there is zero leakage across the diaphragm 56 of the poppet unit 46 and eliminating any cross-flow leakage between the hot and cold water, respectively, in the chamber compartments.