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:
Oct. 11, 2016
Filed:
Jun. 08, 2012
Applicant:
Walter Dennis Robertson, Iii, Harleysville, PA (US);
Inventor:
Walter Dennis Robertson, III, Harleysville, PA (US);
Assignee:
Brooks Instrument, LLC, Hatfield, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 31/06 (2006.01); G05D 7/06 (2006.01); F16K 39/02 (2006.01);
U.S. Cl.
CPC ...
F16K 31/0655 (2013.01); F16K 31/0693 (2013.01); F16K 39/022 (2013.01); G05D 7/0635 (2013.01);
Abstract
The disclosed embodiments include a pressure balance valve that solves one or more problems associated with existing designs. For example, in one embodiment, a pressure balancing valve assembly is disclosed that provides a low cost frictionless assembly that is constructed to not seal the leak path between an inlet port and an outlet port. Instead, this leak path is minimized with small angle tapered plunger and a precision bored annulus to provide a defined area for the pressure drop to occur and to limit the flow from the inlet to the outlet.