Replaceable wear sleeve for percussion drill

Details Replaceable wear sleeve for percussion drill Replaceable wear sleeve for percussion drill

1990-11-30

1992-02-25

Dang, Hoang C.

Boring or penetrating the earth

With tool shaft detail

175409, 175414, 175415, E21B 1036, E21B 1046, E21B 1710

Patent

active

050905007

ABSTRACT:
A percussion drill includes a reciprocating piston surrounded by a cylindrical casing. Disposed at opposite ends of the cylindrical casing are replaceable hollow cylindrical wear sleeves. The wear sleeves are mounted within recesses formed in the outer surface of the casing. Each wear sleeve has a thickness equal to the depth of its respective recess. A longitudinal inner end of each wear sleeve is spaced longitudinally from an end surface of the recess, and a flexible seal is situated between those opposing ends. The wear sleeves can be replaced after being worn by the abrasive environment encountered in the hole being drilled. The wear sleeves may be formed of a more wear resistant material than the casing.

REFERENCES:
patent: 3072843 (1963-01-01), Clements et al.
patent: 3322216 (1967-05-01), Kurt
patent: 3612191 (1971-10-01), Martini
patent: 3991834 (1976-11-01), Curington
patent: 4043611 (1977-08-01), Wallace
patent: 4350348 (1982-09-01), Cox
patent: 4706764 (1987-11-01), Hughes
patent: 4836306 (1989-06-01), Barrows

Affiliated with

Also associated with

Rating

Replaceable wear sleeve for percussion 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 Replaceable wear sleeve for percussion drill, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Replaceable wear sleeve for percussion drill will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1887113