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:
Jan. 31, 2012
Filed:
Oct. 28, 2008
Fredy Zünd, Widnau, CH;
Marco Mayer, Schaan, LI;
Siegfried Krassnitzer, Feldkirch, AT;
Jürgen Gwehenberger, Wangs, CH;
Fredy Zünd, Widnau, CH;
Marco Mayer, Schaan, LI;
Siegfried Krassnitzer, Feldkirch, AT;
Jürgen Gwehenberger, Wangs, CH;
Oerlikon Trading AG, Trubbach, Trubbach, CH;
Abstract
The present invention relates to a vacuum chamber and to its production. According to the invention, the vacuum chamber comprises a frame into which insert plates are placed. The insert plates form together with the frame a closed space in which a vacuum can be created. Preferably, the shell of the frame is extracted from an integrally formed metal piece, with a large portion of material being removed, leading to openings for the insert plates to be created. This has among others the advantage that no welding seams are necessary where the individual plates are inserted.