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:
Apr. 16, 1991
Filed:
Sep. 18, 1989
Burkart Schulte, Minden, DE;
Hakan Sterner, Hanover, DE;
Gerhard Wetzka, Veitshochheim, DE;
Norbert Hardt, Hanover, DE;
Abstract
The invention is directed to a lock system for permitting objects to be ped from a contaminated chamber into a container which is disposed in a contamination-free chamber and docked to the lock system. The lock system of the invention includes a displaceable insert mounted on a partition wall separating the chambers. The insert is in the form of a round disc rotatable about its center point. The disc includes lock openings having different cross sections which are arranged on a circle concentric to the center of the disc. The lock system of the invention permits objects of different shape and size to be passed through the lock along only one removal path.