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:
Dec. 24, 1991
Filed:
Aug. 17, 1990
Applicant:
Inventors:
Siegfried Glang, Hamburg, DE;
Werner Grabe, Winsen, DE;
Assignee:
Phoenix AG, Hamburg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21D / ;
U.S. Cl.
CPC ...
405152 ; 52396 ; 2772 / ;
Abstract
A profiled seal for use in tunnel segments and comprising cut out grooves along the bottom of the seal; channels along the upper part of the seal; lateral faces and spreading feet for the seal; plus a bridge system having an outer bridge and an inner bridge.