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. 09, 2021
Filed:
Feb. 22, 2019
Applicant:
Horiba Stec, Co., Ltd., Kyoto, JP;
Inventor:
Kim Ngoc Vu, Yorba Linda, CA (US);
Assignee:
HORIBA STEC, Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16K 1/42 (2006.01); F16K 27/02 (2006.01); F16K 11/04 (2006.01); F16K 1/12 (2006.01); F16K 31/06 (2006.01); F16K 1/36 (2006.01);
U.S. Cl.
CPC ...
F16K 1/42 (2013.01); F16K 1/12 (2013.01); F16K 11/04 (2013.01); F16K 27/02 (2013.01); F16K 31/0655 (2013.01); F16K 1/36 (2013.01); Y10T 137/0318 (2015.04); Y10T 137/86493 (2015.04);
Abstract
A high conductance valve for use in fluid delivery systems is comprised of a flat non-circular orifice ridge adjacent to which a control plate having a planar control surface is proximally positioned to adjust the valve effective opening area and thereby the conductance of the valve. The length of the non-circular orifice ridge periphery is substantially greater than the circumference of a similarly sized circular orifice and therefore the realized effective opening area is also substantially greater despite having a similar footprint.