Eugene Satoshi Matsuda

47248661, Feb 16, 1988

Jul 31, 1986

6/891748

Howard J. Bates - Yorba Linda CA
Willard D. Childs - Encinitas CA
Eugene S. Matsuda - Laguna Hills CA
Douglas W. J. Nayler - Mission Viejo CA

NL Industries, Inc. - New York NY

F16K 1506

137498

A speed control valve is formed with a pair of cooperating inversely operating dashpots to control movement of a valve element in either direction so as to prevent sudden actuation upon change in fluid velocity or oscillation due to fluid flow changes. Bleeding of fluid into and out of the dashpots controls the speed of movement of the valve element.

44470371, May 8, 1984

Jan 4, 1982

6/336691

Wai J. Huey - Los Angeles CA
Fernando Murman - Rancho Palos Verdes CA
Eugene Matsuda - Laguna Hills CA

Hydril Company - Los Angeles CA

B65D 5300

251 1B

A well blowout preventer packer unit is characterized by long life, and induced back to front (radial) rubber feeding between metallic inserts to close on well pipe or on a well tool for producing a pressure gradient against the pipe or tool which is greatest at the bottom of the packer extent engaging the pipe, and lowest at the top of the packer extent engaging the pipe. The preventer piston has at least three, and typically four, frusto-conical surfaces to progressively and sequentially penetrate the packer rubber to effect controlled and enhanced rubber displacement for sealing against the pipe or tool.

44614489, Jul 24, 1984

Jun 25, 1981

6/277341

Wai Huey - Los Angeles CA
Fernando Murman - Rancho Palo Verdes CA
Eugene Matsuda - Laguna Hills CA

Hydril Company - Los Angeles CA

E21B 3306

251 1B

A well blowout preventer packer unit is characterized by long life, and induced back to front (radial) rubber feeding between metallic inserts to close on well pipe for producing a pressure gradient against the pipe which is greatest at the bottom of the packer extent engaging the pipe, and lowest at the top of the packer extent engaging the pipe.

44524218, Jun 5, 1984

Jan 4, 1982

6/337063

Wai J. Huey - Los Angeles CA
Fernando Murman - Rancho Palos Verdes CA
Eugene Matsuda - Laguna Hills CA

Hydril Company - Los Angeles CA

E21B 3306

251 1B

A well blowout preventer packer unit is characterized by long life, and induced back to front (radial) rubber feeding between metallic inserts to close on well pipe or on a well tool for producing a pressure gradient against the pipe or tool which is greatest at the bottom of the packer extent engaging the pipe, and lowest at the top of the packer extent engaging the pipe. The preventer piston has multiple interior frusto-conical surfaces to progressively and sequentially penetrate the packer rubber to effect controlled and enhanced rubber displacement for sealing against the pipe or tool; one of such surfaces is located relatively further from the piston axis than another such surface and has greater angularity relative to that axis than the other surface, and said one surface also has axial projection of greater radial dimension than that other surface.

46749209, Jun 23, 1987

Sep 20, 1985

6/778598

A. Michael Regan - Huntington Beach CA
Eugene S. Matsuda - Laguna Hills CA

Hughes Tool Company - Houston TX

E02B 1708

405227

A template levelling system includes a pile receptacle carried within the template receptacle mounted to the template. The pile receptacle has a lower flange that extends outwardly from and below the template receptacle. Slips are located in the pile receptacle for gripping the pile to prevent downward movement of the template. A hydraulic jack will grip the pile receptacle and pull the pile receptacle upwardly, causing the flange to contact the lower side of the template to lift the template. The pile receptacle is laterally movable in the template receptacle. A release sleeve can selectively release the slips to allow the pile receptacle to be lowered on the pile.