Tamping tool removal system

Details Tamping tool removal system Tamping tool removal system

1991-02-25

1992-06-30

Watson, Robert C.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

E21B 1900

Patent

active

051251450

ABSTRACT:
A tamping tool removal system including a collar that houses a plurality of hydraulic fluid actuated pistons. The collar fits around the shank of the tamping tool with a channel groove in the collar receiving an annular ring on the shank. When hydraulic fluid extends the pistons against the retainer, the engagement between the ring and channel groove separates the tamping tool from the retainer. A retaining washer has a slot in its side for slidable mounting on a bolt without removal of the bolt from the shank. Tightening the bolt against the retaining washer presses the retaining washer against a surface of the tamping tool retainer to draw the shank tightly into a bore in the tamping tool retainer.

REFERENCES:
patent: 2035156 (1936-03-01), Hale
patent: 2967044 (1961-01-01), Corcreham et al.
patent: 3494592 (1970-02-01), Meschonat et al.
patent: 3638294 (1972-02-01), Durant
patent: 3801067 (1974-04-01), Shorter
patent: 4189817 (1980-02-01), Moebius
patent: 4646411 (1987-03-01), Hankins

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