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:
May. 21, 1991
Filed:
Dec. 21, 1988
Olympus Optical Co., Ltd., Tokyo, JP;
Abstract
A driving apparatus for moving reciprocally a rectangular optical card in a longitudinal direction thereof, including two sets of three edge guide rollers each arranged along respective side edges of the optical card and separated from each other by a distance substantially equal to half of the longitudinal distance of the optical card, two sets of three periphery guide rollers each arranged along respective upper peripheries of the optical card and separated from each other by a distance substantialy equal to half of the longitudinal distance of the optical card, and driving rollers each arranged underneath the respective middle periphery guide rollers. The driving rollers are resiliently urged against the lower surface of the optical card and a shaft to which the driving rollers are secured and a motor connected to the shaft via gears are arranged movably up and down in conjunction with each other.