MR. DONALD TAYLOR, MD
Anesthesiologist Assistant at Main St, Corona, CA

RE31933, Jul 2, 1985

Apr 4, 1983

6/482323

Donald F. Taylor - Dallas TX
James H. Bostock - Denton TX

Otis Engineering Corporation - Dallas TX

E21B 33128, E21B 33129, F16J 1512, F16J 1514

166120

A well packer for use in geothermal wells or. [. stem. ]. . Iadd. steam. Iaddend. injection wells. The packer can be anchored to the inner wall of a casing string to resist differential pressure in either direction. The anchoring means includes a single set of slip elements which are hydraulically or mechanically set. The packer includes a sealing unit with packing elements especially adapted for high temperature wells. The packer can be simply released from the casing by upward tension on the tubing.

4429622, Feb 7, 1984

Sep 15, 1980

6/187425

Donald F. Taylor - Dallas TX

Sedco, Inc. - Dallas TX

F01B 1900

92 93

A valve for automatically dumping a load of solids entrained within a fluid transport medium in response to flow interruption is disclosed. The automatic dump valve is particularly well-suited for use in combination with a module transport riser in deep ocean mining operations. The automatic dump valve system is combined with a tubular conduit defining a longitudinally extending flow passage having a sidewall opening defining a dump port. The automatic dump valve assemby includes a movable dump port cover plate and a hydraulic actuator coupled to the cover plate The hydraulic actuator is operably responsive to pressure changes within the flow passage relative to the pressure exerted by a surrounding body of water to open and close the dump port. The hydraulic actuator is formed by the combination of a sidewall portion of the tubular conduit constricting the flow passage thereby defining a venturi flow region, and a pressure chamber housing enclosing the conduit section and defining an annular pressure chamber. The pressure chamber is divided by a movable piston into a first chamber which is connected in fluid communication with the venturi passage, and a second pressure chamber which is exposed to hydraulic pressure exerted by the surrounding body of water.

3961815, Jun 8, 1976

May 6, 1975

5/575119

Rene H. Coulboy - Sausset les Pins, FR
Donald F. Taylor - Dallas TX

Subsea Equipment Associates Limited - Hamilton

F16L 2706

285 93

A leak-tight connecting device for the connection of two pipes comprising a primary ball-and-socket joint traversed by a bore, a secondary connecting support for said ball-and-socket joint, said secondary support comprising first and second outer sealing joints and a common central sealing joint located between said first and second outer sealing joints, each said sealing joint being disposed between said ball and socket joint and said support to define with said support and said ball-and-socket joint two chambers, means for connecting said chambers to a source of an incompressible fluid under pressure, mechanical means externally connecting said ball-and-socket joint and said secondary support, said mechanical means being pivotally coupled to each said joint and said support and operable to transmit torque from one of said joint and support to the other for various relative angular dispositions of said joint and said support and means for biasing at least one of said outer sealing joints bounding said chambers against said ball-and-socket joint.

4134454, Jan 16, 1979

Sep 21, 1977

5/835058

Donald F. Taylor - Dallas TX

Otis Engineering Corporation - Dallas TX

E21B 4312

166320

Disclosed is an axially movable valve for admitting fluid to a fluid starved region. The admitted fluid feeds a pressure generating pump. Fluid pressure generated by the pump provides a force to further open the valve and to move a tool actuator. The valve opens with minimal sliding friction resistance. During the opening sequence, the flow area of the valve gradually increases. This abstract is neither intended to define the scope of the invention, which, of course, is measured by the claims, nor is it intended to limit the invention in any way.

4440221, Apr 3, 1984

Sep 15, 1980

6/186980

Donald F. Taylor - Dallas TX
William G. Boyle - Dallas TX

Otis Engineering Corporation - Dallas TX

E21B 4300

166106

A submergible pump installation for wells comprising a submergible pump assembly adapted to be landed in position within the well bore for pumping well fluids to the surface, together with a safety system for the well including a subsurface valve or valves for maintaining the well under control as the pump is run into and removed from the well. At least one subsurface valve of the system is hydraulically actuated by the discharge pressure of the pump with the pressure fluid being conducted to the valve by a conducting means located exteriorly of the pump housing. The invention also contemplates the use of a novel poppet-type subsurface valve which may be suitably pressure balanced so that it is capable of being actuated by relatively low hydraulic control pressure supplied by the pump.

4363359, Dec 14, 1982

Oct 20, 1980

6/199034

Donald F. Taylor - Dallas TX
William G. Boyle - Dallas TX

Otis Engineering Corporation - Dallas TX

E21B 2302

166214

A locking assembly for well devices, such as a cable suspended electric pump, for anchoring the device against both axial and rotative movement within a well flow conductor. The assembly includes locking keys engageable with locking recesses provided in the flow conductor to support the device within said conductor. An expander mandrel actuated by the torque forces developed by a rotating element of the well device coacts with said locking keys to urge said keys into tighter locking position and thereby prevent rotation of said assembly within the flow conductor. The assembly also includes an equalizing valve which equalizes pressures across the assembly and the well device prior to releasing the locking action of the locking keys.