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. 04, 1997
Filed:
Sep. 01, 1993
Applicant:
Inventors:
Wieland Neumann, Mochengladbach, DE;
Helmut Mehl, Weilburg, DE;
Assignee:
Forsheda AB, Forsheda, SE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16J / ;
U.S. Cl.
CPC ...
277199 ; 2772 / ; 277226 ;
Abstract
A seal for concrete pipes wherein the sealing function can be controlled by varying the relative change of length under compression, the hardness of the elastomeric material or a combination of the two. The elastomeric body is of wedge-shaped cross section wherein the wedge-shaped end is positioned at the front in the direction of introduction of the pipe end. The elastomeric body further includes a base end having an introduction opening to a reception space. An attachment portion is anchored in the reception space of the elastomeric body and is adapted to control the degree of compression of the elastomeric body.