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:
Jul. 02, 1991
Filed:
Sep. 15, 1989
Applicant:
Inventor:
Arno P Schmidt, Abstatt, DE;
Assignee:
Hilti Aktiengsellschaft, , US;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04H / ;
U.S. Cl.
CPC ...
5217 / ;
Abstract
A method of injecting a hardenable mass into cracks in a structure includes drilling a borehole into the structure traversing the cracks. Inserting a tubular member into the borehole with the tubular member having an outside diameter smaller than the diameter of the borehole. Filling the gap between the borehole surface and the tubular member with a hardenable mass forming a seal of the gap at the opening into the borehole. After the seal has hardened, injecting a hardenable mass into the tubular member so that it flows into the borehole and enters into the cracks in the structure.