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:
Dec. 02, 1997
Filed:
Oct. 25, 1995
Applicant:
Inventors:
Alfons Hesse, Lennestadt, DE;
Joachim Schmidt, Lennestadt, DE;
Assignee:
Tracto -Technik Paul Schmidt Spezialmaschinen KG, Lennestadt, DE;
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
175 45 ; 175 19 ;
Abstract
The invention relates to a device for locating percussion boring machines using a transmitter and a receiver which allows the radio transmitter to be connected to the percussion boring machine in a simple manner and preferably without breaking the connection between the compressed air line and the percussion boring machine; which does not hinder the manoeuvrability of the hammer drill; which is less susceptible to mechanical influences during the boring; and which can easily be disassembled. This is achieved by fastening a housing with a receptacle for the transmitter or the receiver on a fluid line.