Michael S Mcneely

US Patent:

53336356, Aug 2, 1994

Filed:

Jun 7, 1993

Appl. No.:

8/072700

Inventors:

Thomas F. Higgins - Houston TX
Michael D. McNeely - Katy TX

Assignee:

Keystone International Holdings Corp. - Houston TX

International Classification:

F16K 1710

US Classification:

137 12

Abstract:

A fluid pressure relief system and method for a pressure vessel or tank (10) having a normal vent (16) with a first pilot operated safety valve (18) and an emergency vent (62) having a second pilot operated safety valve (25). A vapor recovery line (20) is connected to relief valve (18) and collected at a vapor storage container (21). A manway (22) on the pressure vessel (10) shown in FIG. 2 defines the emergency vent (62) and a main valve member (66) has a counterweight (74) thereon to urge main valve member (66) to a seated closed position on nozzle (60). The first pilot operated safety valve (18) for the normal vent (16) is shown in FIG. 7 and has a T-shaped body (142) with a main relief valve member (172) at one end of the body (142) mounted for movement in a generally horizontal direction and controlled by a diaphragm (176) at an opposite end of the body (142).

US Patent:

50111167, Apr 30, 1991

Filed:

Mar 30, 1990

Appl. No.:

7/502047

Inventors:

Jack B. Alberts - Houston TX
Michael D. McNeely - Houston TX

Assignee:

Keystone International Holdings Corp.

International Classification:

F16K 2500
F16K 31122
F16K 1704

US Classification:

251334

Abstract:

A flow control device illustrated as a pressure relief valve (10, 10A) has a reciprocable valve member (22, 22A) for seating on a face (20, 20A) of a fixed seat ring (18, 18A). The valve member (22, 22A) includes a hub (36, 36A), an outer seal ring (38, 38A), and a flexible connecting member (40, 40A) extending between and connecting the seal ring (38, 38A) and the hub (36, 36A). Upon seating or reseating of valve member (22, 22A) seal ring (38, 38A) contacts fixed seat ring (18, 18A) and flexible connecting member (40, 40A) flexes upon relative movement of the hub (36, 36A) after initial contact of the seal ring (38, 38A) with the fixed seat ring (20, 20A) to act as a shock absorber for absorbing impact forces.

US Patent:

57691134, Jun 23, 1998

Filed:

Nov 6, 1996

Appl. No.:

8/743724

Inventors:

Jack B. Alberts - Houston TX
Michael D. McNeely - Katy TX

Assignee:

Keystone International Holdings Corporation - Houston TX

International Classification:

F16K 31383

US Classification:

1374546

Abstract:

A manifold assembly 10 for operating a safety relief valve 12 includes a manifold block 60 having a block inlet port 230, a block dome pressure port 232, and a pair of control cavities 220 and 222 each adapted for receiving a pilot valve 70 or auxiliary control member 80. Inlet control valves 74, 84, dome pressure control valves 76, 86, and test control valves 78, 88 are each mounted on the manifold block. One of the pilot valves may be maintained on-line for controlling operation of the safety relief valve, while the other pilot valve may be isolated for service. A cartridge pilot valve assembly 70 includes a bushing 126 for facilitating installation and removal of the cartridge valve assembly from the valve block. An improved metal washer 122 is provided having inner and outer knife edges 330, 334 for sealing engagement between the valve body 110 and the block 60.

US Patent:

52824918, Feb 1, 1994

Filed:

Jan 11, 1993

Appl. No.:

8/002804

Inventors:

Thomas F. Higgins - Houston TX
Michael D. McNeely - Katy TX

Assignee:

Keystone International Holdings Corp. - Stafford TX

International Classification:

F16K 1710

US Classification:

137489

Abstract:

A fluid pressure relief system and method for a pressure vessel or tank (10) having a normal vent (16) with a first pilot operated safety valve (18) and an emergency vent (62) having a second pilot operated safety valve (25). A vapor recovery line (20) is connected to relief valve (18) and collected at a vapor storage container (21). A manway (22) on the pressure vessel (10) shown in FIG. 2 defines the emergency vent (62) and a main valve member (66) has a counterweight (74) thereon to urge main valve member (66) to a seated closed position on nozzle (60). The first pilot operated safety valve (18) for the normal vent (16) is shown in FIG. 7 and has a T-shaped body (142) with a main relief valve member (172) at one end of the body (142) mounted for movement in a generally horizontal direction and controlled by a diaphragm (176) at an opposite end of the body (142).

US Patent:

52460347, Sep 21, 1993

Filed:

Jan 11, 1993

Appl. No.:

8/002803

Inventors:

Thomas F. Higgins - Houston TX
Michael D. McNeely - Katy TX

Assignee:

Keystone International Holdings Corp. - Stafford TX

International Classification:

F24K 2400
F16K 2500

US Classification:

137589

Abstract:

A fluid pressure relief system and method for a pressure vessel or tank (10) having a normal vent (16) with a first pilot operated safety valve (18) and an emergency vent (62) having a second pilot operated safety valve (25). A vapor recovery line (20) is connected to relief valve (18) and collected at a vapor storage container (21). A manway (22) on the pressure vessel (10) shown in FIG. 2 defines the emergency vent (62) and a main valve member (66) has a counterweight (74) thereon to urge main valve member (66) to a seated closed position on nozzle (60). The first pilot operated safety valve (18) for the normal vent (16) is shown in FIG. 7 and has a T-shaped body (142) with a main relief valve member (172) at one end of the body (142) mounted for movement in a generally horizontal direction and controlled by a diaphragm (176) at an opposite end of the body (142).

US Patent:

50641697, Nov 12, 1991

Filed:

Jan 22, 1991

Appl. No.:

7/643485

Inventors:

Jack B. Alberts - Houston TX
Michael D. McNeely - Houston TX

Assignee:

Keystone International Holdings Corp.

International Classification:

F16K 2500
F16K 31102
F16K 1704

US Classification:

251334

Abstract:

A pressure relief valve (14, 14A) has a reciprocable valve member (34, 34A) for seating on an annular seat face (66,66A) of a nozzle assembly (38,38A). The nozzle assembly (38,38A) has an inner seat ring (40,40A), a radially outer anchor ring (42,42A), and a flexible connecting member (44,44A) extending in a generally radial direction between the outer peripheral surface (64) of the seat ring (40,40A) and the inner peripheral surface of the anchor ring (42,42A). Upon seating or reseating of the valve member, (34,34A), seal face (36,36A) contacts the seat face (66,66A) of seat ring (40,40A) and flexible connecting member (44,44A) flexes upon relative movement of the seat ring (40,40A) after initial contact of the valve member (34,34A) against the seating ring (40,40A) thereby to act as a shock absorber for absorbing impact forces.

US Patent:

52495930, Oct 5, 1993

Filed:

Jan 11, 1993

Appl. No.:

8/002805

Inventors:

Thomas F. Higgins - Houston TX
Michael D. McNeely - Katy TX

Assignee:

Keystone International Holdings Corp.

International Classification:

F16K 1710

US Classification:

137 12

Abstract:

A fluid pressure relief system and method for a pressure vessel or tank (10) having a normal vent (16) with a first pilot operated safety valve (18) and an emergency vent (62) having a second pilot operated safety valve (25). A vapor recovery line (20) is connected to relief valve (18) and collected at a vapor storage container (21). A manway (22) on the pressure vessel (10) shown in FIG. 2 defines the emergency vent (62) and a main valve member (66) has a counterweight (74) thereon to urge main valve member (66) to a seated closed position on nozzle (60). The first pilot operated safety valve (18) for the normal vent (16) is shown in FIG. 7 and has a T-shaped body (142) with a main relief valve member (172) at one end of the body (142) mounted for movement in a generally horizontal direction and controlled by a diaphragm (176) at an opposite end of the body (142).

US Patent:

46090088, Sep 2, 1986

Filed:

Sep 11, 1985

Appl. No.:

6/774809

Inventors:

William L. Anderson - Houston TX
Michael D. McNeely - Katy TX
Irvin B. Weise - late of Bellaire TX
by Stanley A. Weise - Dallas TX

Assignee:

Anderson-Greenwood USA, Inc. - Bellaire TX

International Classification:

G05D 1600

US Classification:

137488

Abstract:

A non-flowing pilot valve (16) for a control valve (C) in a main flow line (F) having a body (27) with an inlet fluid chamber (76), an outlet fluid chamber (106) and an intermediate fluid chamber (104) between the inlet fluid chamber (76) and the outlet fluid chamber (106). Diaphragm (34) in the fluid inlet chamber (76) is secured to a piston slidable body (40) extending within intermediate fluid chamber (104) and having a valve seat (88) thereon between inlet fluid chamber (76) and intermediate fluid chamber (104). A second fixed valve seat (64) is provided within the body (40) between the intermediate fluid chamber (104) and the outlet fluid chamber (106). A valve spool (92) has a pair of O-ring seals (94, 96) thereabout adapted to seal against the valve seats (88, 64). Unseating of the O-ring seals (94, 96) from the seats (88, 64) results from predetermined pressure changes in the sensed fluid pressure in fluid pressure chamber (76) and communicating such pressure changes through a fluid line (22) from the intermediate fluid chamber (104) to the control valve (C). An embodiment shown in FIG.