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:
Sep. 09, 2003
Filed:
Jul. 12, 2001
Applicant:
Inventors:
Marinus Franciscus Johannes Evers, Geldrop, NL;
Michael Adrianus Theodorus Hompus, Helmond, NL;
Assignee:
O.T.B. Group B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E06B 3/00 ;
U.S. Cl.
CPC ...
E06B 3/00 ;
Abstract
Lock for a vacuum chamber which lock has a passage comprising an outer sealing element and an inner sealing element which outer sealing element can be maintained in the closed position under the influence of the pressure difference caused by the vacuum in the vacuum chamber, and can be opened against the force caused by the pressure difference, which inner sealing element under pretension can be maintained in the opened position and comprises closing element for closing the inner sealing element against the pretension, the closing element comprise at least one electromagnet.