Hammer stabilizer

Details Hammer stabilizer Hammer stabilizer

1975-01-22

1976-12-28

Purser, Ernest R.

Boring or penetrating the earth

With below-ground tool drive prime mover

175321, 175325, 308 4A, E21B 1710

Patent

active

039996182

ABSTRACT:
A sub is screwed to the top of a down hole percussor. A replaceable stabilizer sleeve is screwed to the sub and extends down around the percussor body spaced radially therefrom. A rubber shock ring inside the lower end of the sleeve centralizes the sleeve relative to the percussor body.

REFERENCES:
patent: R26120 (1966-12-01), Kellner
patent: 1620173 (1927-03-01), Taylor
patent: 1852844 (1932-04-01), Greve
patent: 2359717 (1944-10-01), Myers
patent: 2815930 (1957-12-01), Storm
patent: 2825534 (1958-03-01), Reid
patent: 3123159 (1964-03-01), Buck
patent: 3151690 (1964-10-01), Grable
patent: 3642079 (1972-02-01), Van Note
patent: 3674100 (1972-07-01), Becker
patent: 3820611 (1974-06-01), King

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