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. 10, 1992
Filed:
Apr. 19, 1991
Yukio Ohike, Shimada, JP;
Tomohiro Sugiyama, Shimada, JP;
Yazaki Corporation, Tokyo, JP;
Abstract
An indicating instrument having a cross coil comprising a pair of mutually perpendicular coils wound on a coil bobbin for passing therethrough current changing with changes in the quantity to be measured, a magnet rotor disposed inside the coil bobbin for rotating in the direction of a magnetic field which is the combination of the respective magnetic fields generated by the cross coil, and a pointer for indicating the measured quantity which is mounted on a rotary shaft rotatable together with the magnetic rotor. In order to prevent unneccessary vibration of the rotary shaft, the rotary shaft is acted on by a damping force of a viscous liquid. The viscous liquid is accommodated in a recess formed in the upper surface of the magnet rotor, and the damping action is performed in cooperation with a damping projection projecting downward from a part of the coil bobbin.