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:
Jul. 25, 2000
Filed:
Jul. 07, 1997
Staeubli AG, Pfaeffikon, CH;
Abstract
For removing and transporting several spaced, parallel wafers stored in a container, a gripping device is provided. The gripping device has a holding rake and several gripping heads which can be rotated with respect to the holding rake. In one swivel position, the gripping heads are moved through between the wafers and then swivelled into another swivel position. In this latter position, the gripping heads are brought to a stop against the edges of the wafers movement of the gripping device, and then the opposite edges of the wafer disks are brought to stop against the counterholder by displacement of the counterholder. All wafers contained in the container are thus simultaneously securely held and can be displaced out of the container. In order to then swivel the wafers, the holding rake which has slots for receiving the wafer edges is also stopped at the wafer edges, and the counterholder is then pushed back. The wafers are therefore securely swivelled. In the swivelled position, the vertically standing wafers are supplied to a processing carrier.