Percussion or hammer drill

Details Percussion or hammer drill Percussion or hammer drill

2008-01-01

2008-01-01

Tsay, Frank (Department: 3672)

Boring or penetrating the earth

Bit or bit element

Impact or percussion type

C408S230000

Reexamination Certificate

active

10498408

ABSTRACT:
A percussion or hammer drill is provided including a drill plate arranged in the head end of a drill shaft, extending completely across the diameter of the drill shaft and comprising an open front face. Wedge-shaped cutting edges and flanks form two main cutters on the front face, whereby a plane running through the drill axis forms a mid-plane-of both main cutters. The main cutters form a tip angle in the range of approximately 140° to 180° and are separated by a central point.

REFERENCES:
patent: 5482124 (1996-01-01), Haussmann et al.
patent: 5779403 (1998-07-01), Kleine et al.
patent: 5836410 (1998-11-01), Kleine
patent: 5957631 (1999-09-01), Hecht
patent: 6550555 (2003-04-01), Huber et al.
patent: 2001/0013431 (2001-08-01), Huber et al.
patent: 1 034 864 (2000-09-01), None
patent: WO 00/25967 (2000-05-01), None
International Search Report; PCT/EP02/14329; Mar. 17, 2003.

Affiliated with

Also associated with

Rating

Percussion or hammer drill does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Percussion or hammer drill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Percussion or hammer drill will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3952619