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:
Feb. 13, 1990
Filed:
Aug. 30, 1988
Applicant:
Inventors:
Siegfried Glang, Hamburg, DE;
Werner Grabe, Winsen/Luhe, DE;
Assignee:
Phoenix Aktiengesellschaft, Hamburg, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; E21D / ;
U.S. Cl.
CPC ...
428131 ; 428137 ; 428156 ; 428167 ; 428134 ; 428172 ; 428178 ; 428179 ; 428192 ; 428492 ; 52396 ; 52403 ; 277205 ; 2772 / ; 277208 ; 404 37 ; 405135 ; 405152 ;
Abstract
A sealing profile formed of rubber or rubber-like material is provided for sealing tunnel segments which have circumferential recesses. There is a plurality of slotted grooves running parallel in the lengthwise direction on the base side of the profile and a plurality of channels running parallel in the lengthwise direction, the number of channels being no greater than the number of slotted grooves and at least one channel being in alignment with a corresponding groove.