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. 15, 1987
Filed:
Oct. 24, 1986
Yuichi Kamo, Tokyo, JP;
Nobuo Mikami, Tokyo, JP;
NEC Corporation, , JP;
Abstract
A bistable type of electromagnetic relay has a movable block including a pair of permanent magnet units. Each of the magnet units has a permanent magnet and a pair of generally U-shaped magnetic plates attached to its opposite poles. A rotation of the movable body actuates relay contact members. A yoke has opposite ends, each formed by a pair of opposing end pieces, the end of the magnetic plates being arranged in spaces defined by the opposing end pieces. A coil supporting a spool has a through-hole for receiving a core which is inserted therein. Flanges are formed at opposite ends and at a center portion of the spool, with a plurality of protrusions protruding outwardly on both sides of each flange. A pair of base members have grooves and recesses for receiving the protrusions on the flanges of the spool, for rotatably supporting the movable block.