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.

Date of Patent:
Mar. 10, 2020

Filed:

Apr. 22, 2016
Applicant:

Hilti Aktiengesellschaft, Schaan, LI;

Inventors:

Tobias Drexl, Weil, DE;

Andreas Hartig, Augsburg, DE;

Thomas Schmalholz, Kaufbeuren, DE;

Bernhard Link, Schwabbruck, DE;

Goran Golubovic, Buchloe, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 44/02 (2006.01); B28D 1/04 (2006.01); B28D 7/00 (2006.01); B23B 51/04 (2006.01); B23B 49/00 (2006.01);
U.S. Cl.
CPC ...
B28D 1/041 (2013.01); B23B 49/00 (2013.01); B23B 51/042 (2013.01); B28D 7/005 (2013.01); B23B 2226/75 (2013.01); B23B 2260/128 (2013.01); B23B 2270/32 (2013.01); B23B 2270/54 (2013.01);
Abstract

A control method for a core drill and a feed device for driving the core drill along a machine holding device, including the method steps: moving the core drill in a first direction; detecting the surface position of a material based on reaching a threshold value for at least one feed device parameter as a first reference value; moving the core drill in a second direction; operating the core drill in a tapping mode; moving the core drill in the first direction; detecting the surface position of a material based on reaching a threshold value for at least one corresponding drilling parameter as a second reference value; activating a water supply; and activating a regulating and control unit for adapting at least one drilling parameter as a function of at least one parameter of the feed device. A feed device for driving a core drill along a machine holding device for the use of the method, a core drill for the use of the method, as well as a core drilling system including a core drill and a feed device for driving the core drill along a machine holding device for the use of the method.


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