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:
Jul. 02, 2024
Filed:
Apr. 30, 2021
Applicant:
Yamashin-filter Corp., Kanagawa, JP;
Inventors:
Assignee:
YAMASHIN-FILTER CORP., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01L 9/14 (2006.01); G01L 9/00 (2006.01);
U.S. Cl.
CPC ...
G01L 9/14 (2013.01); G01L 9/0089 (2013.01);
Abstract
A differential pressure measurement range is widened and differential pressure can be measured particularly during low differential pressure. A first spool facing a space in a high pressure side is lighter than a second spool facing a space in a low pressure side in a state where a magnet is provided. Urging force of a first elastic member that urges the first spool toward the space in the high pressure side is smaller than urging force of a second elastic member that urges the second spool toward the space in the high pressure side, and the first elastic member and the second elastic member are disposed in series.