Reversible casing for a down-the-hole percussive apparatus

Details Reversible casing for a down-the-hole percussive apparatus Reversible casing for a down-the-hole percussive apparatus

1993-02-05

1994-07-05

Britts, Ramon S.

Wells

Processes

Assembling well part

175320, 175293, 173 17, E21B 406, B23Q 5033

Patent

active

053259262

ABSTRACT:
A reversible casing for a down-the-hole drill has a predetermined snap ring groove length centered between the casing ends, based upon the casing bore, the snap ring groove depth and the snap ring body length, whereby a snap ring will be retained in the snap ring groove, while permitting lengthwise movement of the snap ring during reverse orientation of the casing.

REFERENCES:
patent: 3941196 (1976-03-01), Curington et al.
patent: 3958645 (1976-05-01), Curington
patent: 4084646 (1978-04-01), Kurt
patent: 4094364 (1978-06-01), Lundstrom et al.
patent: 4402370 (1983-09-01), Gein et al.
patent: 4530407 (1985-07-01), Rear
patent: 4790390 (1988-12-01), Sweeny
patent: 4821812 (1989-04-01), Ditzig
patent: 4921052 (1990-05-01), Rear
patent: 5131476 (1992-07-01), Harrington
patent: 5205363 (1993-04-01), Pascale

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