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. 29, 1992
Filed:
Nov. 06, 1990
Applicant:
Inventors:
Klaus Wessiepe, Essen, DE;
Wilhelm Stewen, Oberhausen, DE;
Assignee:
Ruhrkohle AG, Essen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E06B / ;
U.S. Cl.
CPC ...
49477 ; 49481 ; 49485 ; 202248 ;
Abstract
The door has a separate seal element and a hollow profile frame. The hollow profile frame has a number of tappets exending therefrom to press the seal element against a door frame. These tappets are applied individually to the seal element by pressure from a pneumatic hose within the hollow profile frame which applies pressure to the tappets.