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:
Feb. 14, 1995
Filed:
Apr. 15, 1993
Kiwamu Shibata, Kadoma, JP;
Yoichi Yokoyama, Kadoma, JP;
Manabu Yano, Kadoma, JP;
Nobuhiro Kitamura, Kadoma, JP;
Naoki Kanemoto, Kadoma, JP;
Tetsuyasu Kawamoto, Kadoma, JP;
Matsushita Electric Works, Ltd., Osaka, JP;
Abstract
A damper is provided by a plurality of chambers defined between stacked thin sheet members and containing a fluid for flowing therein through a communicating section, the chambers being made to be of a small height in the direction perpendicular to the plane of the sheet members and to form a buffer section with at least one of the chambers. With such damper employed in electromagnet assemblies and eventually relays including the assemblies, they can be sufficiently minimized in size, and their manufacture can be also made extremely easier.