Down-the-hole drilling machine

Details Down-the-hole drilling machine Down-the-hole drilling machine

1993-03-10

1994-01-18

Smith, Scott

Tool driving or impacting

Impacting devices

Impact transmitting anvil

173128, 92177, E21B 106

Patent

active

052793710

ABSTRACT:
Down-the-hole drilling machine comprising a housing in form of a tube (1), a hammer piston (6) being movable to-and-fro in the tube and intended for impacting a drill bit (5). The hammer piston is at its ends provided with end sections in form of polygons with rounded corners (51, 52). These end sections are turned relative to each other an angle which is half as large as the angle between two adjacent corners.

REFERENCES:
patent: 1069853 (1913-08-01), Carter
patent: 2013744 (1935-09-01), Curtis
patent: 3180236 (1965-04-01), Beckett
patent: 3270821 (1966-09-01), Bassett et al.
patent: 4821812 (1989-04-01), Ditzig
patent: 4831919 (1989-05-01), Bruni

Affiliated with

Also associated with

Rating

Down-the-hole drilling machine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Down-the-hole drilling machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Down-the-hole drilling machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1131608