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:
Aug. 01, 1978
Filed:
Jul. 18, 1977
Wilhelm Steinborn, Remscheid, DE;
Alois Mechenbier, Illingen, DE;
Diehl, Nuremberg, DE;
Tip-Top-Saar Gesellschaft fur industrielle Vulkanisierung m.b.H., Sulzbach-Altenwal d, DE;
Abstract
A plug or stopper for bores in rocks or the like, which bores, after the lling, are filled with a self-hardening synthetic material, such as commercially available epoxy resin mixtures, polyester resin mixtures, and cyanoacrylate adhesives. The plug is pressed or driven into the bore and consists essentially of an elastically deformable material, especially rubber or rubber-like synthetic resin. The outer diameter of the plug corresponds to the diameter of the rock bore. The plug tapers mainly toward the front and is provided on its outer circumference with grabbing elements. The inside of the plug is provided with an axial bore which becomes narrower toward the back. A closure member which serves as a valve body is axially displaceably arranged in the plug in such a way that it seals off the axial bore when pressure is directed toward the back.