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:
Jun. 15, 1993
Filed:
Aug. 15, 1991
Chikazu Yokoi, Odawara, JP;
Masayuki Tamasaku, Kanazawa, JP;
Masaru Yokoyama, Higashimurayama, JP;
Shunji Fujimori, Kodaira, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A disc apparatus includes a surface having a slot used for inserting therethrough a disc and a guide mounted to the surface so as to be rotatable up to a position substantially perpendicular to the surface, the guide having a face on the substantial same level as that of an edge of the slot, the face having dimensions enough to cover the slot. A plurality of grooves or a brush extending longitudinally with respect to the slot may be provided on the guide. A projection is projected in a direction substantially perpendicular to both one edge of the slot and the surface of the apparatus. The projection serves to make the positioning when inserting the disc easy. A magnetic substance and a magnet are respectively mounted to positions of the guide and the surface of the apparatus corresponding to each other. The magnetic substance and the magnet serve to bring the guide into contact with the apparatus and thus are effective for preventing the dust from entering into the apparatus.