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:
Oct. 21, 2003
Filed:
Oct. 02, 2001
Naoki Tatsumi, Chofu, JP;
Kazuya Tamura, Chofu, JP;
Mitsumi Electric Co., Ltd., Tokyo, JP;
Abstract
A roller shaft ( ) is provided which includes a shaft portion ( ) of a substantially solid cylindrical shape and a flange portion ( ) of a disk-like shape. The shaft portion ( ) includes a hollow cylindrical portion ( ) having a substantially hollow cylindrical shape and formed at a lower end ( ) side. The hollow cylindrical portion has an inner peripheral surface with a female screw ( ) formed thereon. A D-shaped cut ( ) may be provided on an outer peripheral wall of the hollow cylindrical portion for positioning the roller shaft ( ) with respect to the chassis ( ) and for preventing the roller shaft from rotating around the chassis, or a D-shaped cut ( ) or a slot ( ) may be formed in the flange portion ( ).