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:
Jan. 07, 2020
Filed:
Dec. 06, 2018
Applicant:
Vistadeltek, Llc, Yorba Linda, CA (US);
Inventor:
Kim Ngoc Vu, Yorba Linda, CA (US);
Assignee:
VistadelTek, LLC, Yorba Linda, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16K 7/14 (2006.01); F16K 41/10 (2006.01); F16K 27/02 (2006.01); F16K 1/36 (2006.01); F16K 41/12 (2006.01); F16K 1/46 (2006.01); F16K 25/00 (2006.01); B29C 37/00 (2006.01); B29C 70/80 (2006.01); F16K 27/10 (2006.01);
U.S. Cl.
CPC ...
F16K 1/36 (2013.01); B29C 37/0085 (2013.01); B29C 70/80 (2013.01); F16K 1/46 (2013.01); F16K 7/14 (2013.01); F16K 25/005 (2013.01); F16K 27/0236 (2013.01); F16K 41/103 (2013.01); F16K 41/12 (2013.01); F16K 27/102 (2013.01);
Abstract
A control plate for effecting superior shut-off in a proportional control valve comprises a moveable disk-shaped element that has a flat surface, generally perpendicular to the valve axis of symmetry when closed, and translates toward or away from an orifice surrounded by a narrow lip or orifice ridge. Enhanced leak tightness in the valve shut-off condition is achieved by selectively incorporating into the control plate materials that are softer than the material comprising the orifice ridge.