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. 11, 2005
Filed:
Dec. 13, 2001
Applicants:
Ulrich Speer, Eisingen, DE;
Stephan Leonhardt, Bretten, DE;
Inventors:
Ulrich Speer, Eisingen, DE;
Stephan Leonhardt, Bretten, DE;
Assignee:
Steag HamaTech AG, , DE;
Primary Examiner:
Int. Cl.
CPC ...
B29C065/00 ;
U.S. Cl.
CPC ...
Abstract
A method and apparatus for joining at least two substrates together, especially to form an optical data carrier, are provided. Substrates are disposed in a spaced-apart manner between two plates that are disposed opposite from, and are movable relative to, one another. At least one of the plates is connected to a flexible membrane. At least the plate to which the flexible membrane is connected is moved in such a way that a pressure difference is produced on opposite sides of the membrane.