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:
Sep. 15, 1992
Filed:
Dec. 13, 1991
Takamichi Okada, Hanno, JP;
Abstract
An electromagnetic rotation sensor for detecting a rotational speed of a rotating member includes a sensor portion and a connector portion which are molded of a resin to provide a resin-molded structure. The resin-molded structure is received in a cover, with the connector portion extending outwardly from the cover through a sensor portion-positioning hole formed through a wall of the cover. In order to prevent a positional displacement of the sensor portion with respect to a detection gear, connected to the rotating member, when fixedly mounting the cover on the resin-molded structure, a primary molded portion is molded to provide the sensor portion, and then the primary molded portion is inserted into the cover, and then a secondary molded portion is molded to form the connector portion on the primary molded portion in such a manner that a peripheral edge portion of the sensor portion-positioning hole is fixedly held between the primary molded portion and the secondary molded portion. With this arrangement, the cover can be fixed to the sensor portion and the connector portion without the need for compressive deformation or the like of the cover.