John Fitzgerald Mcgee

US Patent:

42404550, Dec 23, 1980

Filed:

Oct 27, 1978

Appl. No.:

5/955230

Inventors:

John K. McGee - Houston TX

Assignee:

Combustion Engineering, Inc. - Windsor CT

International Classification:

F16K 1738
F16K 31143

US Classification:

137 77

Abstract:

A valve operator for a normally open valve is maintained in a cocked, ready to close mode by an arrangement which includes a radially contracted, self-expansible split retainer ring backed by a body of fusible material. Should the vicinity of the associated valve be subjected to the heat of a fire, the fusible body will melt out of blocking relation, permitting the split ring to expand free of the operator stem. A cocked spring recovers, axially moving the stem both to shut the valve and to engage a metal-to-metal back seat between the valve stem and valve bonnet. The latter event ensures against leakage even if the fire or wear has ruined the integrity of the usual valve stem packing. The valve operator is further provided with a manual override which permits the valve to be closed and opened, e. g. using a remotely actuated pneumatic operator even while the body of fusible material remains intact and in place.

US Patent:

40905659, May 23, 1978

Filed:

Sep 13, 1976

Appl. No.:

5/722753

Inventors:

John K. McGee - Houston TX

Assignee:

Gray Tool Company - Houston TX

International Classification:

E21B 2300

US Classification:

166315

Abstract:

A wellhead assembly is provided comprising an upper wellhead assembly, a lower wellhead assembly, a sleeve, and a seal between the sleeve and the lower wellhead assembly. The upper wellhead assembly includes a tubing string section, and a control line, and the control line mounted exterior of the tubing string section. The lower wellhead assembly includes a bore therethrough, through which the tubing string section and the control line pass into the well. The sleeve is operatively connected to the upper wellhead assembly and extends into the bore, surrounding the control line and the tubing string section, the seal being formed between the exterior of the sleeve and the lower wellhead assembly bore. A prefabricated article of manufacture is utilized in the wellhead assembly for facilitating the ease of assembly, the prefabricated article of manufacture including a tubing hanger mandrel, a tubing hanger body operatively connected to the tubing hanger mandrel, a control line receiving port in the tubing hanger body, the tubing string section, and the sleeve. During assembly of the wellhead assembly, a split coupling support assembly is utilized to space the tubing hanger body from the lower wellhead assembly until the entire upper wellhead assembly is connected together (including a tubing bonnet 10) at which time, the split coupling support assembly is removed and the upper wellhead assembly lowered into operative association with the lower wellhead assembly.

US Patent:

42456614, Jan 20, 1981

Filed:

Oct 27, 1978

Appl. No.:

5/955232

Inventors:

John K. McGee - Houston TX

Assignee:

Combustion Engineering, Inc. - Windsor CT

International Classification:

F16K 1738
F16K 4114

US Classification:

137 72

Abstract:

A valve operator that is provided with a back seat which comes into use when the normally non-rising stem operator and its bearing-enclosing bonnet gland are raised, e. g. so that stem packing can be replaced, is further provided with another way to actuate the back seat, one which will come into play should the valve be subjected to heat of sufficient intensity as to call the integrity of the stem packing or other critical parts into question. The further activation mode depends on the melting of fusible material which permits the operator and its bearings to rise relative to the bonnet.

US Patent:

47794658, Oct 25, 1988

Filed:

Feb 9, 1987

Appl. No.:

7/012187

Inventors:

Stanley D. Stearns - Houston TX
John K. McGee - Houston TX

Assignee:

Valco Instruments Company, Inc. - Hanis County TX

International Classification:

G01L 500
G10D 902

US Classification:

7386254

Abstract:

The present apparatus in the preferred and illustrated embodiment comprises first and second rings which are respectively affixed to the mouthpiece and mouth pipe. As force is increased by the musician in holding the mouthpiece against his lips, such force is measured by cooperative measuring means fixed to said first and second means. In the preferred embodiment, the force measuring means includes an aligned pin on one of said means positioned relative to a transducer coil to thereby provide an indication of force. The signal indicative of force is delivered to a time based recorder and is recorded as a function of time along with additional data including sound intensity levels and frequency of the music to provide correlation between force, intensity and frequency as a function of time. A method is also taught including the recording of such data to teach the musician to reduce the force applied against his lips.

US Patent:

40476979, Sep 13, 1977

Filed:

Mar 26, 1975

Appl. No.:

5/562182

Inventors:

John K. McGee - Houston TX

Assignee:

Gray Tool Company - Houston TX

International Classification:

F16K 300

US Classification:

251328

Abstract:

A valve seat - to - body connection, and an installation therefor. A resilient metallic ring having an inside diameter slightly smaller than the outside diameter of a valve body in which the seat member is to be installed, is placed around the section of the seat member. When the seat member is then inserted in the body, it provides initial sealing pressures, but is still readily detachable. Apparatus is provided for injecting a material of plastic consistency or the like into the area surrounding the metallic ring, which deforms the ring into fluid tight engagement with the seat member and the body. Additional seals may also be provided associated with the seat member.

US Patent:

42891990, Sep 15, 1981

Filed:

Sep 28, 1979

Appl. No.:

6/079954

Inventors:

John K. McGee - Houston TX

Assignee:

Combustion Engineering, Inc. - Windsor CT

International Classification:

E21B 3303

US Classification:

166 65R

Abstract:

The present invention provides a penetrator for a wellhead in order to get a communication line for a down hole device out of a well through the wellhead. In particular, the line is brought up into the hanger for less than the full axial extent of the hanger, then led laterally out through the side of the hanger and out through the sidewall of the head below the hanger-to-head annulus seal. The communication line may be an electrical cable with particularly placed connecting fittings in the hanger and head and is shown providing for side access for easy, horizontal plug-in installation.

US Patent:

43901867, Jun 28, 1983

Filed:

Feb 4, 1982

Appl. No.:

6/345797

Inventors:

John K. McGee - Houston TX
Harold L. Lafferty - Manvel TX
Charles D. Bridges - Houston TX
Archie L. Smith - Houston TX

Assignee:

Combustion Engineering, Inc. - Windsor CT

International Classification:

F16J 1508
E21B 3312

US Classification:

277236

Abstract:

In order to provide a metal-to-metal annular seal for use in a high pressure environment typical of a wellhead assembly that is provided on a high pressure, high temperature gas well, especially circumferentially between the outside surface of a tubular part and the inside surface of a relatively massive part, where these parts are to have a fixed longitudinal position relative to one another in use: the available strength for developing the seal are determined; like tapering surfaces are provided on the two parts such as would provide an allowable interference fit when the two parts are brought to the fixed longitudinal position; portions of the outside surface of the tubular part are machined-away to leave tapered land areas, e. g. in two axially closely spaced bands, so that when the two parts are forced to assume the fixed longitudinal position, the seal bands provide an elastic seal that avoids total plastic deformation yet provide the required unit loading. The invention is useful on many types of frusto-conical sealing annuli.

US Patent:

41380916, Feb 6, 1979

Filed:

May 25, 1977

Appl. No.:

5/800437

Inventors:

John K. McGee - Houston TX

Assignee:

Combustion Engineering, Inc. - Windsor CT

International Classification:

F16K 3150

US Classification:

251267

Abstract:

A gate valve gate is raised and lowered by a threaded stem. The stem threads into a separately formed nut that is secured to the gate.