Locating device for percussion boring machines

Details Locating device for percussion boring machines Locating device for percussion boring machines

1995-10-25

1997-12-02

Dang, Hoang C.

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Tool position direction or inclination measuring or...

175 19, E21B 414, E21B 4709

Patent

active

056925760

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.

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patent: 4854398 (1989-08-01), Holloway
patent: 4875292 (1989-10-01), Gibson
patent: 4907658 (1990-03-01), Stangl et al.
patent: 5002137 (1991-03-01), Dickinson et al.
patent: 5248857 (1993-09-01), Ollivier
patent: 5322391 (1994-06-01), Fisk
patent: 5490569 (1996-02-01), Brotherton et al.

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