1
John J Vrolyk: Emission controller for indirect fired downhole steam generators. Rockwell International Corporation, H Fredrick Hamann, Harry B Field, February 12, 1985: US04498531 (150 worldwide citation)

The present invention provides an indirect downhole steam generator system comprising a downhole combustor, a well casing which provides a flue for the exhaust gases of the downhole combustor, and one or more aerosol nozzles situated within the exhaust flue of the well casing for injecting an aeroso ...


2
Sarkis Barkhoudarian: Nonintrusive flow sensing system. Rockwell International Corporation, H Frederick Hamann, Harry B Field, Steven E Kahm, August 20, 1991: US05040415 (120 worldwide citation)

A nonintrusive flow sensing system (10) and related method are provided for monitoring fluid flow within a conduit (14), particularly such as a liquid flow (12). The sensing system (10) includes an array of ultrasonic transducers (18, 20, 24, 26) mounted on the conduit (14) and adapted to send and r ...


3
Donald H Wykes: Adjustable pin for friction stir welding tool. Boeing North American, Harry B Field, Steven E Kahm, December 16, 1997: US05697544 (110 worldwide citation)

A stir friction welding tool with a variable length pin relative to the shank of the tool is disclosed. The pin is moveable from a totally retracted position relative to the shank such that the shank may engage a workpiece without the pin engaging the workpiece. The pin then may be slowly extended i ...


4
Alan Z Ullman, Jacob Silverman, Joseph Friedman: Hydropyrolysis process. Rockwell International Corporation, H Fredrick Hamann, Harry B Field, Clark E DeLarvin, July 1, 1986: US04597776 (93 worldwide citation)

An improved process for producing a methane-enriched gas wherein a hydrogen-deficient carbonaceous material is treated with a hydrogen-containing pyrolysis gas at an elevated temperature and pressure to produce a product gas mixture including methane, carbon monoxide and hydrogen. The improvement co ...


5
Donald D Clemens: Photovoltaic concentrator system. Rockwell International Corporation, Harry B Field, Steven E Kahm, August 26, 1997: US05660644 (92 worldwide citation)

A light weight photovoltaic concentrator having a foldable, easily deployed structure for concentrating solar rays on solar cells for generating electricity is disclosed. The photovoltaic concentrator features a concentrator which can be inflated, for ease of deployment, to a shape for reflecting su ...


6
Murray W Mahoney, Norman G Taylor, William H Bingel, Frederick E Long, Robert A Spurling, Gerald S Steele: Method to repair voids in aluminum alloys. The Boeing Company, Harry B Field, November 2, 1999: US05975406 (89 worldwide citation)

The present invention provides a method to repair a void in an aluminum alloy, particularly a void resulting from an exit hole left from friction stir welding (FSW). The method includes machining the void to provide a tapered bore (34) through a parent metal, i.e., the aluminum alloy (30), providing ...


7
Gordon W Culp: Walking expansion actuator. Rockwell International Corporation, H Fredrick Hamann, Harry B Field, Steven E Kahm, July 5, 1994: US05327038 (82 worldwide citation)

This invention is for an object moving actuator composed of a stack of independently controllable layers which convert thermal exobaric pulses into mechanical motion. Each layer can be a lifter for moving the stack normal to the object to be moved or a tangenter for moving the stack tangentially to ...


8
Charles D Rosen, Edward Litwinski, Juan M Valdez: Friction stir welding process to repair voids in aluminum alloys. The Boeing Company, Harry B Field, October 26, 1999: US05971252 (80 worldwide citation)

The present invention provides an in-process method to repair voids in an aluminum alloy, particularly a friction stir weld in an aluminum alloy. For repairing a circular void or an in-process exit hole in a weld, the method includes the steps of fabricating filler material of the same composition o ...


9
Elmo S Holt, Lawrence J Lang: Programmable friction stir welding process. Rockwell International Corporation, Harry B Field, Steven E Kahm, February 3, 1998: US05713507 (78 worldwide citation)

A variable pin length stir friction welding method wherein the stir friction welding pin penetrates the workpiece as the workpiece translates. The stir friction welding pin starting at a zero penetration and extending to the depth needed to repair a weld or to make a weld. Then withdrawing the pin t ...


10
Charles D Rosen: Friction stir welding total penetration technique. Rockwell International Corporation, Harry B Field, Steven E Kahm, March 18, 1997: US05611479 (77 worldwide citation)

A method for ensuring complete penetration of a friction stir weld using a rotating pin friction stir welding tool comprising chamfering the bottom of the plates to be welded along the faying edges. Placing the plates on a back up plate. Inserting the pin friction stir welding tool into the plates t ...