1
Gary L Bailey, Leo D Hudson, Sherman R Warren, Ross S Woods: Method and apparatus for hanging tubulars in wells. Formlock, Lyon & Lyon, August 8, 2000: US06098717 (224 worldwide citation)

A well tubular is hung within a casing through placement of the tubular in overlapping relationship with the casing. A spacer may be located therebetween. The tubular is expanded which in turn expands the spacer when used. The tubular is expanded beyond the yield point such that it or an intervening ...


2
Robert M Campbell Jr: Apparatus and method for effecting surgical incision through use of a fluid jet. David G Henry, April 15, 1997: US05620414 (79 worldwide citation)

Applicant's invention is of apparatuses and associated methods in the use of high pressure, sterile water jets in effecting surgical incisions, including those of hard tissues such as bone. The combination of high pressure and sterility is achieved by enclosing a collapsible bag of sterile water wit ...


3
George W Swisher Jr, Don W Smith, Gary L Westphall: Material transfer mechanism. CMI Corporation, Dunlap Codding and McCarthy, December 14, 1976: US03997277 (74 worldwide citation)

An improved material transfer mechanism comprising a selectively variable speed hydraulic power assembly having an output connected to and powering a material conveyor. A double acting hydraulic ram positions a swash plate control lever that determines the rotational speed of the output shaft, and a ...


4
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 (67 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 ...


5
Jon E Kinzenbaw: Folding row marker. Kinze Manufacturing, Emrich & Dithmar, January 22, 1991: US04986367 (58 worldwide citation)

A folding row marker includes first, inner and second, intermediate sections pivotally coupled together, as well as a third, outer section pivotally coupled to a distal end of the second section. A marker disc is disposed on the distal end of the third section and a hydraulic ram pivotally displaces ...


6
Secil Boyd: Ocean wave power generator (a “modular power-producing network”). November 18, 2003: US06647716 (58 worldwide citation)

Disclosed herein is a compound device (a “modular power-producing network”, or “power net”) for the purpose of transducing the energy in ocean waves into electrical energy. The invention first pressurizes ocean water (or a suitable alternative hydraulic fluid) into at least one storage chamber with ...


7
Don E Rainey: Ocean tide energy converter. Bacon & Thomas, June 24, 1980: US04208878 (57 worldwide citation)

A tide motor energy source includes a tidal piston with a valved chamber. The piston drives a hydraulic ram to generate electrical power through a pressure accumulator and hydraulic motor. The ram can be locked hydraulically to enable the tidal piston to be held fixed at a desired elevation and the ...


8
Prgomet Leon Stephen: Weighing device.. Skeen June Caroline, Prgomet Leon Stephen, December 27, 1984: EP0129422-A2 (56 worldwide citation)

A combination to determine the weight of the contents of a bucket (15) of an excavator having an articulated arm (10), the weight of the contents can be calculated if the angle between the two arms (13, 14) of the articulated arm can be determined together with the pressure within the hydraulic ram ...


9
Carl Morgan, George L Scott III: Method and apparatus for lifting oilfield goods to a derrick floor. Browning Bushman, June 27, 2000: US06079925 (51 worldwide citation)

The lifting assembly 10. 110 is provided for lifting oilfield tubular members T onto the floor of a derrick D. The assembly includes a lower base 12 which is positioned at a selected location relative to the derrick, and an upper platform 14 pivotally connected at its rearward end to the base. The u ...


10
Errol F Andrews, Edward A Peterson, Jeffrey N Casbolt, Kevin E Holt, John M McMillan, Robert E Whiting: Coupling for earth moving tools etc.. Maroochy Shire Council, Schwartz Jeffery Schwaab Mack Blumenthal & Koch, November 6, 1984: US04480955 (49 worldwide citation)

A quick release and attachment coupling for operating tools for earthmoving or excavating machines having an attachment head pivotally mounted on the boom of the machine. A locating head is fixed to, or formed integrally with, an operating tool and has a pair of spaced side plates, and stop members ...



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