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Keith M Haney, Jerry K Lingafelter: Compact casing tongs for use on top head drive earth drilling machine. W N Apache Corporation, Willian Brinks Olds Hofer Gilson & Lione, September 19, 1989: US04867236 (110 worldwide citation)

Compact casing tongs include a tube which is secured to a connector, the connector in turn being supported and rotated by a quill of a top head drive assembly. The lower end of the tube regidly supports a set of cams which define multiple recesses. A jaw is mounted in each recess, and each of the ja ...


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Haney Keith Mallory, Lingafelter Jerry Kenneth: Compact casing tongs for use on top head drive earth drilling machine.. Apache, April 12, 1989: EP0311455-A1 (44 worldwide citation)

Compact casing tongs include a tube (12) which is secured to a connector (22), the connector in turn being supported and rotated by a quill of a top head drive assembly. The lower end of the tube rigidly supports a set of cams (44) which define multiple recesses (46). A jaw (50) is mounted in each r ...


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Haney Keith M, Lingafelter Jerry K: Languettes pour tubage compact utilise avec machine de forage a entrainement de tete, Compact casing tongs for use on top head drive earth drilling machine. Haney Keith M, Lingafelter Jerry K, W N Apache Corporation, CASSAN MACLEAN, June 2, 1992: CA1302391

ABSTRACT OF THE DISCLOSURE Compact casing tongs include a tube which issecured to a connector, the connector in turn beingsupported and rotated by a quill of a top head driveassembly. The lower end of the tube rigidly supports aset of cams which define multiple recesses. A jaw ismounted in each rece ...