An adjustable automatic recirculation valve includes a valve body, a main valve disk, a bypass valve and a dynamic adjustment assembly. The main valve disk is positioned within the valve body and opens in response to fluid flow between a main inlet and a main outlet. The bypass valve controls the flow of fluid between the main inlet and the recirculating outlet. A dynamic adjustment assembly, housed within the valve body controls the operating lift associated with the maximum opening of the bypass valve to regulate fluid flow capacity to the recirculating outlet.
Michael D. McNeely - Katy TX, US Howell A. Smith - Houston TX, US
Assignee:
TYCO VALVES & CONTROLS, INC. - Houston TX
International Classification:
G05D 11/02
US Classification:
13711505
Abstract:
An adjustable automatic recirculation valve includes a valve body, a main valve disk, a bypass valve and a dynamic adjustment assembly. The main valve disk is positioned within the valve body and opens in response to fluid flow between a main inlet and a main outlet. The bypass valve controls the flow of fluid between the main inlet and the recirculating outlet. A dynamic adjustment assembly, housed within the valve body controls the operating lift associated with the maximum opening of the bypass valve to regulate fluid flow capacity to the recirculating outlet.
A check valve mechanism providing a valve body and valve seat assembly having noncircular eccentrically located hinge pin receptacles with independently controlled X-axis and Y-axis hinge pin locating surfaces. A simple cylindrical hinge pin is supported in the receptacles and supports a check valve disc in such manner that both opening and closing movements have components of rotary and linear disc movement relative to the hinge pin and valve seat of the valve mechanism.
Michael D. McNeely - Katy TX Walter W. Powell - Sugar Land TX
Assignee:
Anderson, Greenwood & Company - Houston TX
International Classification:
F16K 1710
US Classification:
1374846
Abstract:
A safety relief system for a valve in a vent or a main flowline. The safety relief system utilizes a main actuator (24) utilized primarily for a positive pressure condition and a vacuum actuator (96) in axial alignment with the main actuator (24) utilized exclusively for a negative pressure condition. The main valve member (18) has a stem (22) which extends within both actuators (24, 96) and diaphragms (26, 100) are connected to the stem (22) for movement of the valve member (18).
Michael D. McNeely - Katy TX Thomas F. Higgins - Houston TX
Assignee:
Tyco Flow Control, Inc. - Houston TX
International Classification:
F16K 1710
US Classification:
1374895
Abstract:
A pilot operated safety relief valve (14) in which a pilot valve (32) controls the opening and closing of the main valve member (26). The pilot valve (32) has a spindle valve member (70) between an intermediate dome fluid chamber (52) and an exhaust chamber (54) communicating with exhaust port (52) and exhaust line (38). Spindle valve member (70) has an annular sealing member or membrane (104) having a relatively thin body (105) with opposed beads (106, 108) along inner and outer peripheries of body (105) for sealing between spindle valve member (70) and the adjacent retainer sleeve (94). Any positive backpressure forces from exhaust line (38) are balanced against spindle valve member (70) by annular seal (80) and membrane (104). Membrane (104) is effective for sealing between spindle valve member (70) and retainer sleeve (94) without generation of frictional forces therebetween thereby to permit precise actuation of main valve member (70) within the tolerance of the relieving pressure specified for pilot valve (32).
Pilot Valve For Control Valves And Method Of Operation
A pilot valve (40) for a control valve (14) has a separate auxiliary source of high pressure fluid (106) for the operation of the pilot valve (40). The dome chamber (36) of the control valve (14), the inlet fluid chamber (72), and the intermediate fluid chamber (104) are exposed only to the auxiliary source of fluid (106). Thus, process fluid from the sensing line (62) does not contaminate the spool valve (76) or the dome chamber (36).
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).
A testing device (22) for a non-flowing pilot valve (20) controlling a main relief valve (13) and simulating the action of the relief valve (13). The testing device body (84) has a test fluid source (42) releasably connected thereto and includes a piston valve element (112) mounted in a valve chamber (106) for movement to an unseated vent position upon the test fluid pressure reaching a predetermined high which is usually similar to the set point operating fluid pressure at which the main relief valve (13) will actuate. For return of piston valve element (112) to a seated position after a reduction of the test fluid pressure by venting, a relatively large diameter end face (128) is exposed to fluid pressure from an intermediate fluid chamber (78) of the pilot valve (20) which is in fluid communication with the dome (14) of the pressure relief valve (13). A relatively small fluid pressure responsive area of piston (113) outwardly of small diameter O-ring (120) is exposed to test fluid pressure.
Law offices of Michael S McNeely Po Box 1096 1209 Decker Dr. Ste 213, Baytown, TX 77522 8326953471 (Office)
Licenses:
Texas - Eligible To Practice In Texas 1981
Education:
Thurgood Marshall School of Law Degree - Doctor of Jurisprudence/Juris Doctor (J.D.) Graduated - 1981 Thurgood Marshall School of Law Degree - Doctor of Jurisprudence/Juris Doctor (J.D.) Graduated - 1981
Specialties:
Criminal Defense - 25% Family - 25% Personal Injury - 25% Juvenile - 25%
Michael Mcneely - Lawyer
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Michael Mcneely
Education:
Georgia Southern University - Criminal Justice
About:
Georgia Native; Conservative; Public Safety Professional