Tools – Wrench – screwdriver – or driver therefor – Machine
Patent
1992-09-22
1993-11-09
Smith, James G.
Tools
Wrench, screwdriver, or driver therefor
Machine
81 5734, B25B 1700
Patent
active
052592758
ABSTRACT:
WO 90/06418 discloses a dynamic torque transmitting arrangement which inhibits a power tong and a back-up tong tending to move out of axial alignment whilst coupling or uncoupling adjacent pipes. In the mechanical arrangement disclosed the minimum distance between the power tong and the back-up tong is limited by a strap. In the present invention flanges are mounted on opposite sides of the top of the power tong. Tension arms are pivotally mounted on the flanges and are connected by a hollow tube. Straps are pivotally mounted at one end to the tension arms and at the other end to hollow pillars on which the back-up tong is slideably mounted. When the power tong and the back-up tong are in close proximity the straps are disposed to either side of the power tong. The back-up tong is supported from the power tong by rods which are connected to plates on which the hollow pillars rest.
REFERENCES:
patent: 1386345 (1921-08-01), McGowan et al.
patent: 2668669 (1954-02-01), Cormany
patent: 2737839 (1956-03-01), Paget
patent: 2871743 (1959-02-01), Kelley
patent: 3288000 (1966-11-01), Foster
patent: 3380323 (1968-04-01), Campbell
patent: 3516308 (1970-06-01), Ham et al.
patent: 3722331 (1973-03-01), Radulescu
patent: 3760658 (1973-09-01), Guier
patent: 3838613 (1974-10-01), Wilms
patent: 4041000 (1983-08-01), Kinzbach
patent: 4061194 (1977-12-01), McCanse
patent: 4082017 (1978-04-01), Eckel
patent: 4170908 (1979-10-01), Peveto et al.
patent: 4246809 (1981-01-01), Keast et al.
patent: 4402239 (1983-09-01), Mooney
patent: 4423647 (1984-01-01), Toelke
patent: 4492134 (1985-01-01), Reinholdt
patent: 4494425 (1985-01-01), Shewmake, Sr.
patent: 4574664 (1986-03-01), Curry
patent: 4619159 (1986-10-01), Kurek
patent: 4972741 (1990-11-01), Sibille
patent: 5081888 (1992-01-01), Schulze-Beckinghausen
patent: 5099725 (1992-03-01), Bouligny et al.
"General Services And Products Catalog 1990-91" Weatherford, 1989, particularly pp. 13, 27.
"Integral Back Up Tongs," Weatherford, Feb. 1985.
"Well Completion Component Test Facilities," Ksepl, 1986, pp. 12, 13.
"Varco Oil Tools," Composite Catalog, 1982-83, pp. 8378-8382.
"Joy Petroleum Equipment Group," Composite Catalog, 1982-83 pp. 5082-5083.
"Eckel Tongs Back Up Units," Composite Catalog, 1982-83, p. 953.
"Hydraulic Back Up Tongs," Weatherford, prior to 1991.
"1988 Annual Report," Weatherford, 1988, p. 1.
"General Services And Products Catalog," Weatherford 1988-89, pp. 26-28.
"Model 5.5-15 Hydraulic Tubing Tong," Weatherford, 1990.
McClung Guy
Smith James G.
Weatherford / Lamb, Inc.
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