Wear resistant sub assembly

Details Wear resistant sub assembly Wear resistant sub assembly

2008-03-19

2010-02-02

Gay, Jennifer H (Department: 3672)

Boring or penetrating the earth

With tool shaft detail

Shaft carried guide or protector

C166S241600

Reexamination Certificate

active

07654345

ABSTRACT:
A wear resistant sub assembly with a sleeve with a sleeve outer diameter larger than the body outer diameter, a plurality of offset indentations formed on the outer side of the sleeve formed in rows of four to eight offset indentations along a diagonal orientation to a sleeve axis; a plurality of a metal carbide inserts providing an interference fit into each offset indentation thereby forming a wear resistant sleeve; a sealing means disposed between the sleeve and the body and at least two spring locking apparatus engaging locking indentations on the body.

REFERENCES:
patent: 3054647 (1962-09-01), Von Rosenberg
patent: 3480094 (1969-11-01), Morris
patent: 3667817 (1972-06-01), Kellner
patent: 4296973 (1981-10-01), Hartwell
patent: 5261498 (1993-11-01), Steinkamp et al.
patent: 5833018 (1998-11-01), von Gynz-Rekowski
patent: 7520344 (2009-04-01), Keck

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