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. 21, 1999
Filed:
Sep. 09, 1997
Toshihide Masui, Kosai, JP;
Toshio Tsuboko, Anjo, JP;
Yoshinaka Nakamura, Kariya, JP;
Hiroaki Kodama, Chiryu, JP;
Fumihisa Ichioka, Obu, JP;
Takumi Miyaki, Obu, JP;
Ikuma Harada, Obu, JP;
Denso Corporation of Kariya, , JP;
Tokai Riki Mfg. Co. Ltd., Obu, JP;
Abstract
A female screw portion is formed around an axis of a rotor of a step motor to penetrate through the rotor in an axial direction of the rotor. A male screw portion is formed on an outer peripheral surface of a screw shaft so that the screw shaft is screwed into the female screw portion. The screw shaft is inserted in a ring rod, and a connection clip portion is connected to the ring rod. When the rotor rotates, the ring rod reciprocates linearly in the axial direction of the rotor, and vertical fins rock in the axial direction of the rotor.