Rotating head

Details Rotating head Rotating head

1975-07-03

1977-04-19

Marbert, James B.

Handling: hand and hoist-line implements

Grapple

Collar-engaging

24249DP, 24263D, 173167, 294102A, 29429, B66C 162

Patent

active

040184714

ABSTRACT:
A clamp is attached to a drill pipe beneath the rotating head when the pipe is pulled from the well. Not only does the clamp hold the rotating head in place, but, also, a ring-like handhold is provided on the clamp for handling the pipe with the drilling head thereon.

REFERENCES:
patent: 214001 (1879-05-01), Hinderliter
patent: 1485683 (1924-03-01), Lignoski
patent: 1552062 (1925-09-01), Krell
patent: 2122513 (1938-07-01), Conner
patent: 2237856 (1941-04-01), Wilson
patent: 2719025 (1955-09-01), Stone
patent: 3149391 (1964-09-01), Baster
patent: 3309130 (1967-03-01), Arrowood
patent: 3422524 (1969-01-01), Timmons
patent: 3458230 (1969-07-01), Jones et al.

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