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. 25, 1989
Filed:
Aug. 05, 1987
Siegfried Glang, Hamburg, DE;
Werner Grabe, Winsen, DE;
Phoenix Aktiengesellschaft, Hamburg, DE;
Abstract
There is provided a sealing profile formed of rubber or rubber-like material for tunnel segments having a recess therefor extending therearound, the profile having a base side facing the segment and a back side facing away from the segment, a plurality of longitudinally extending parallel flutes in the base side, lateral flanks extending angularly from the base side, a plurality of longitudinally extending parallel ducts, and at least one centrally disposed bridge through extending from the base side to the back side without impairment in its supporting effort by a longitudinal duct.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile