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. 16, 2001
Filed:
Dec. 06, 1999
Andreas Sauer, Hösbach, DE;
Manfred Schuhmacher, Alzenau/Michelbach, DE;
Johannes Kunz, Hasselroth, DE;
Gerhard Joos, Niedernberg, DE;
Beybold Systems GmbH, Hanau, DE;
Abstract
A gate valve (,) is constructed for the simultaneous blocking or clearing of two rectangular passage openings (,) of two chamber walls (,) that are provided between two vacuum chambers (,) and aligned with one another. To this end, it has two valve plates (,), which are a component of a slider (,), which is situated so that it can move with play from a position clearing the passage openings (,) to a position which closes the passage openings (,). To move the valve plates (,) to the closing setting against the passage openings (,) on the slider (,), at least one lifting element (,), which is acted on by pressure, is provided.