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:
Dec. 16, 1986
Filed:
Oct. 09, 1985
Yokogawa Hokushin Electric Corporation, Tokyo, JP;
Abstract
A pressure sensor which detects delicate changes in pressure as small as 0.01 .mu.m water column by detecting displacement or torque in a movable plate. The sensor comprises a fixed plate in which slits are formed, a movable plate on which pressure to be measured is impressed, a supporting member which supports the movable plate at two points on a straight line passing through its center of gravity so as to enable the movable plate to rotate thereabout, and a detecting means for detecting displacement or torque in the movable plate. The different pressures act on the movable plate to cause the rotation thereof and the displacement or torque so that such displacement corresponds to the pressure difference.