Clamping jaw device for well servicing machine

Details Clamping jaw device for well servicing machine Clamping jaw device for well servicing machine

1984-01-18

1986-11-11

Novosad, Stephen J.

Wells

Above ground apparatus

Well caps or casing heads

24537, 279 1W, 403310, 166177, E21B 4325, F16B 700, F16D 108

Patent

active

046216880

ABSTRACT:
A clamping jaw device is used to couple sonic energy generated by an orbiting mass oscillator to a pipe string for transmission down the string to a downhole work area. The clamping jaw device includes a pair of similar clamping jaws, each forming a half section of a hollow cylinder. The jaw device has a head portion, a main body portion, a neck portion joining the head portion to the main body portion and indented from the head portion and a flange at the bottom end of the main body portion. The pipe string is retained between the jaws by means of a jaw lock member which comprises a flat ring slidably mounted on the main body portion and adjustably positionable therealong, the lock member being seated against the flange at the bottom end of the main body portion to hold the jaws in a closed clamping position against the pipe string. The clamping jaws may be firmly clamped to the pipe string so that sonic energy is delivered thereto throughout the vibration cycle of the oscillator by means of hold down screws.

REFERENCES:
patent: 2089230 (1937-08-01), Thowless
patent: 2179955 (1939-11-01), Rawnsley
patent: 3601429 (1971-08-01), Coski

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