Combination power and backup tong support and method

Details Combination power and backup tong support and method Combination power and backup tong support and method

1995-06-23

1997-09-09

Bryant, David P.

Metal working

Method of mechanical manufacture

With testing or indicating

81 5734, 81 5735, 248581, 248603, B23Q 1700

Patent

active

056643101

ABSTRACT:
A support 10 is provided for supporting both a power tong PT and a backup tong BT during makeup of a threaded connection TC between a lower oilfield tubular LT and an upper oilfield tubular UT. The support 10 includes a plurality of legs 12 and 14 each extending upwardly from the backup tong BT, a support plate 18 affixed to an upper end of the plurality of legs for engagement with the upper oilfield tubular, and a compensation member 32, 44, 60 secured to the support plate 18 for supporting the power tong PT relative to the backup tong BT while allowing vertical movement of the power tong relative to the backup tong during makeup or break out of the threaded connection.

REFERENCES:
patent: 3838613 (1974-10-01), Wilms
patent: 4402239 (1983-09-01), Mooney
patent: 4574664 (1986-03-01), Curry
patent: 4649777 (1987-03-01), Buck
patent: 4727781 (1988-03-01), Yuehui et al.
patent: 5081888 (1992-01-01), Schulze-Beckinghausen
patent: 5099725 (1992-03-01), Bouligny, Jr. et al.
patent: 5390568 (1995-02-01), Pietras
patent: 5409192 (1995-04-01), Oliver

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