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:
May. 01, 2007
Filed:
Jan. 30, 2004
Oliver Koslowski, Utting am Ammersee, DE;
Konrad Lieb, Landsberg, DE;
Oliver Koslowski, Utting am Ammersee, DE;
Konrad Lieb, Landsberg, DE;
Hilti Aktiengesellschaft, Schaan, LI;
Abstract
A process for controlling and a core drilling machine () having an electrical motor () for rotational drive of a core drill bit () having cutting edges () oriented axial to a work piece (), a feeding means () for generating the feed of the core drill bit () against the work piece () and having a controller () for controlling, relative to a first one-to-one control parameter, detected by a sensor (') for electrical power consumption (P) or torque (M). A force sensor (′) is connected to the controller () for detecting the contact pressing force (F) of the core drill bit () as the second control parameter.