1
Joseph R Woolslayer, Cecil Jenkins, John C Brittain: Automated pipe racking apparatus. Lee C Moore Corporation, Alan T McCollom, February 16, 1988: US04725179 (120 worldwide citation)

Apparatus for use to facilitate threading and unthreading substantially vertical lengths of pipe on a drilling rig by moving the pipe between the well bore center line and a racking assembly. An arm having a gripping head mounted thereon is extendable and retractable relative to a carriage mounted o ...


2
John C Brittain, Cecil Jenkins, William P Adelman, Joseph R Woolslayer: Pipe moving apparatus and method. Lee C Moore Corporation, Laney Dougherty Hessin & Beavers, May 30, 1989: US04834604 (66 worldwide citation)

Machine for moving casing or pipe from a horizontal position adjacent a well to a vertical position over the well bore. The machine includes a boom movable between a lowered position and a raised position by a hydraulic ram. A strongback grips the pipe and holds the same until the pipe is vertically ...


3
Woolslayer Homer J, Woolslayer Joseph R, Jenkins Cecil, Campbell Erwin A: Apparatus for moving drill pipe into and out of an oil well derrick. Lee C Moore Corporation, January 11, 1972: US3633771 (49 worldwide citation)

A boom has an inner end pivotally supported in front of the bottom of an oil well drilling derrick to enable the boom to be swung in a vertical plane toward and away from the derrick. A boom extension is hinged to the outer end of the boom on a horizontal axis and extends upwardly from the boom when ...


4
Homer J Woolslayer, Cecil Jenkins: Pipe handling apparatus for oil well drilling derrick. Lee C Moore Corporation, Brown Murray Flick & Peckham, October 19, 1976: US03986619 (42 worldwide citation)

The inner end of a boom is pivotally supported on a horizontal axis in front of a well, over which there is an oil well drilling derrick. Pivotally connected to the outer end of the boom on an axis parallel to the axis just mentioned, is clamping means for gripping drill pipe connected at one end to ...


5
Cecil Jenkins: Floor level pipe handling apparatus. Lee C Moore Corporation, Brown Flick & Peckham, October 30, 1979: US04172684 (40 worldwide citation)

Mounted on the floor of an oil well derrick substructure is a support that is rockable on an axis perpendicular to the centerline of a well being drilled beneath the substructure. One end of an arm is pivotally mounted on the support on an axis transverse to the first mentioned axis, while the oppos ...


6
Jenkins Cecil, Donnally Robert B: Oil well drilling apparatus. Lee C Moore Corporation, Brown Murray Flick & Peckham, April 30, 1974: US3807109 (31 worldwide citation)

Parallel reclining front and back links have their front ends pivotally connected to a base and their rear ends pivotally connected to an elevatable floor support member on which a gin pole is mounted. Pivotally connected to the base in front of the links is a reclining setback support member extend ...


7
Homer J Woolslayer, Robert D Woods, Cecil Jenkins: Safety support for safety belts. Lee C Moore Corporation, Brown Flick & Peckham, October 16, 1979: US04171032 (25 worldwide citation)

A vertical sleeve secured to a side of a structure on which a man is working receives and supports the lower end portion of a pole that has a much longer inclined upper portion so that its upper end will be directly above a point spaced laterally from the sleeve. A safety line suspended from the upp ...


8
Homer J Woolslayer, Cecil Jenkins, Dewayne G Vogt: Method and apparatus for raising and lowering a telescoping mast. Lee C Moore Corporation, Laney Dougherty Hessin Claro & Beavers, July 8, 1986: US04598509 (21 worldwide citation)

Method and apparatus for raising and lowering a telescoping mast. A telescoping mast having an upper section slidably received within a lower section is pivotally connected to a base in a horizontal position. A line is connected to the lower end of the upper section and is placed over a pulley mount ...


9
Cecil Jenkins, Joseph R Woolslayer: Oil well drilling rig mover. Lee C Moore Corporation, Brown Flick & Peckham, March 8, 1983: US04375892 (20 worldwide citation)

An oil well drilling rig mover is formed from a pair of laterally spaced dollies detachably connected by braces between them. Each of the dollies includes a beam for resting on a support, and a pair of laterally spaced wheels at each end of the beam. An arm extends outwardly from the outer end of a ...


10
Donnally Robert B: Folding pole for high floor mast. Lee C Moore Corporation, Brown Murray Flick & Peckham, April 16, 1974: US3803780 (17 worldwide citation)

An oil well derrick gin pole has the upper ends of its front legs connected to its rear legs, and sheaves supported by the upper ends of the rear legs to aid in raising a mast hinged to the base supporting the gin pole. The rear legs of the gin pole have upper portions that extend above their connec ...



Click the thumbnails below to visualize the patent trend.