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:
Apr. 13, 1993
Filed:
Aug. 23, 1991
Yoshimitsu Hisajima, Tokyo, JP;
Kabushiki Kaisha Shinkawa, Tokyo, JP;
Abstract
A covering mechanism for covering an area in which a movable table, etc. of, for example, semiconductor assembling machines using a flexible sheet cover that has elasticity. One end of the cover is fastened to a take-up shaft and the other end to a movable member that moves over the movable table, etc. in the direction perpendicular to the take-up shaft. The cover wrapped around the take-up shaft is stretched out when the movable member is moved away from the take-up shaft, thus covering the table. When the movable member is moved towards the take-up shaft, the cover, with the elasticity, is back to be wrapped around the take-up shaft. By arranging a plurality of take-up shafts at right angles, the covers can stretch in the directions perpendicular to each other, thus covering a wider area in which an X-Y table is moved around.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile