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:
Mar. 03, 1981
Filed:
Mar. 08, 1979
Applicant:
Inventors:
Assignee:
Philipp Holzmann Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E02D / ; E21D / ;
U.S. Cl.
CPC ...
405260 ; 405266 ; 405269 ;
Abstract
A method is disclosed of providing a grouted anchorage in a base formation. A tube having a drill member at its forward end is driven into the base formation through an opening in a wall. An anchor rod is introduced once the desired depth has been reached, liquid mortar is forced through the tube to the forward end of the tube and the tube is withdrawn from the hole. The forward end of the tube is continuously kept closed, sealed from penetration by water. During the initial withdrawal of the tube a corresponding amount of liquid mortar is forced therethrough, the anchor rod being pressed against the drill tip which remains in the base formation.