Fritz O Seger

US Patent:

RE330531, Sep 12, 1989

Filed:

May 16, 1988

Appl. No.:

7/194547

Inventors:

Fritz O. Seger - Mission Viejo CA

Assignee:

Cameron Iron Works USA Inc. - Houston TX

International Classification:

F16K 4704

US Classification:

251121

Abstract:

A low-noise valve has a body with a fluid inlet to receive pressurized fluid, an oulet and a fluid passageway extending between the inlet and outlet. Located in the passageway are a number of spaced throats. The valve also includes a movable stem with a number of plugs each adapted to be closely received by a corresponding throat. Each plug includes a plurality of circumferential alternating grooves and lands, the lands being closely spaced within the throats to create a plurality of flow restrictions each incrementally restricting fluid flow when the stem is at a minimum flow position. Movement of the stem toward a full open position sequentially removes the lands from the throat to reduce restriction of said fluid flow in stages.

US Patent:

44442203, Apr 24, 1984

Filed:

Dec 28, 1981

Appl. No.:

6/335250

Inventors:

Fritz O. Seger - Mission Viejo CA

Assignee:

Willis Division of Smith International, Inc. - Newport Beach CA

International Classification:

F16K 2402
F16K 4300

US Classification:

137312

Abstract:

An erosion resistant control valve or adjustable choke has a body with a side inlet, an end outlet and a conical valve seat in alignment with the outlet. Downstream from the valve seat are a converging passage having a smaller taper than the valve seat, a cylindrical passage and a diverging passage. A stem aligned with the seat assembly includes a plug having a tapered seal surface near its upstream end for engaging the valve seat and a converging control surface downstream therefrom with the same taper as the converging passage. The smaller end of the control surface is in the cylindrical passage when the valve is closed and in the converging passage is fully open for localizing erosion downstream from the valve seat. A bleed passage relieves pressure from within the valve before the valve bonnet can be removed. The valve can be locked in a selected control setting by a split ring engaging the stem.

US Patent:

40715868, Jan 31, 1978

Filed:

Oct 26, 1976

Appl. No.:

5/735279

Inventors:

Fritz O. Seger - Fairview PA

Assignee:

Copes-Vulcan, Inc. - Lake City PA

International Classification:

B01F 304

US Classification:

261 62

Abstract:

An automatically regulated variable orifice desuperheater valve is disclosed which includes improved constructional features providing for a more compact installation then heretofore, one which is more reliable in operation and which is at the same time more economical to construct. The desuperheater unit has a welded-closed housing, which includes a concentrically mounted valve guide structure. The lower portion of the desuperheater valve housing structure is arranged so that, after the unit is welded closed, with the valve guide structure contained therein, the valve element may be inserted into the housing from the bottom or inlet opening, followed by a shouldered sleeve which functions as the valve seat. The sleeve is seated against a facing shoulder in the inlet opening of the valve housing, and is secured against such shoulder by appropriate means such as welding. The housing surrounding the valve and valve guide is of minimum height, sufficient to accommodate the flow of steam and injected water around the valve and valve guide, and quickly converges the flow of materials back to the diameter of the main piping systems.

US Patent:

45497184, Oct 29, 1985

Filed:

May 7, 1984

Appl. No.:

6/607521

Inventors:

Fritz O. Seger - Mission Viejo CA

Assignee:

Smith International, Inc. - Newport Beach CA

International Classification:

F16K 4704

US Classification:

251121

Abstract:

A low-noise valve has a body with a fluid inlet to receive pressurized fluid, an outlet and a fluid passageway extending between the inlet and outlet. Located in the passageway are a number of spaced throats. The valve also includes a movable stem with a number of plugs each adapted to be closely received by a corresponding throat. Each plug includes a plurality of circumferential alternating grooves and lands, the lands being closely spaced within the throats to create a plurality of flow restrictions each incrementally restricting fluid flow when the stem is at a minimum flow position. Movement of the stem toward a full open position sequentially removes the lands from the throat to reduce restriction of such fluid flow in stages.

US Patent:

47323647, Mar 22, 1988

Filed:

Nov 12, 1985

Appl. No.:

6/797601

Inventors:

Fritz O. Seger - Mission Viejo CA
David R. Hall - Provo UT

Assignee:

Ameron Iron Works USA, Inc. - Houston TX

International Classification:

F16K 4700
E21B 1000

US Classification:

251368

Abstract:

An erosion resistant article is formed by cladding a substrate with tiles having a surface layer of polycrystalline material such as diamond or cubic boron nitride. The tiles may be entirely polycrystalline diamond or may have a backing of cemented tungsten carbide. Such an article can be trim for a high pressure valve wherein a sleeve is partly lined with polycrystalline diamond tiles and a plug is clad with polycrystalline diamond tiles.

US Patent:

42792746, Jul 21, 1981

Filed:

Nov 19, 1979

Appl. No.:

6/095618

Inventors:

Fritz O. Seger - Fairview PA

Assignee:

Copes-Vulcan, Inc. - Lake City PA

International Classification:

F15D 102

US Classification:

138 42

Abstract:

A fluid flow control device, particularly for use in connection with valves used in the control of fluids under high pressure, is disclosed. In the new structure, the valve trim includes a form of flow restrictor, which serves to limit flow velocity and which causes the fluid pressure to be reduced in a sufficient number of discrete stages to minimize noise and cavitation. The new flow restrictor comprises an axial stack of annular discs, each provided with a plurality of annular baffle ribs projecting from its opposite end faces. The annular baffle ribs on one side of the disc are slotted along a number of equally spaced radii, and the ribs on the opposite side of a disc are similarly slotted, but along radii offset from the first set of radii. When a series of these discs is assembled in a stack, downwardly facing ribs of one disc fit between upwardly facing ribs of a disc next below, providing a series of annular passages interconnected by radial slots. Each series of slots is offset and located between the next series and the preceding series, so that the fluid flow is continually divided and recombined for velocity reduction.

US Patent:

44035233, Sep 13, 1983

Filed:

Jun 23, 1981

Appl. No.:

6/276653

Inventors:

Fritz O. Seger - Mission Viejo CA

Assignee:

Smith International, Inc. - Newport Beach CA

International Classification:

F16H 2702

US Classification:

74128

Abstract:

A high torque reversible stepping actuator for valves can drive in small increments in response to fluid pressue pulses. The stepping actuator has oppositely facing ratchet wheels on a common shaft linked to the stepping actuator output. A pair of operator means can drive the ratchet wheels in opposite directions. Each operator means comprises a fluid pressure actuator connected to a drive pawl for driving one of the ratchet wheels in one direction. A pair of locking pawls normally engage the ratchet wheels preventing rotation in either direction. The fluid pressure actuator disengages one of the locking pawls sequentially before engaging the drive pawl with the ratchet wheel, thereby permitting advance of the ratchet wheel. The other locking pawl remains engaged and prevents back drive of the ratchet wheels and stepping actuator due to elastic deformation of the drive train connecting the ratchet wheel with the valve or other mechanism being driven.

US Patent:

42210372, Sep 9, 1980

Filed:

Sep 29, 1977

Appl. No.:

5/837871

Inventors:

Fritz O. Seger - Fairview PA

Assignee:

Copes-Vulcan, Inc. - Lake City PA

International Classification:

B23P 1500
F15D 100

US Classification:

291571R

Abstract:

The dislosure relates to fluid flow control devices, particularly for use in connection with valves used in the control of fluids under high pressure. In the new structure, the valve trim includes a novel and advantageous form of flow restrictor, which serves to limit flow velocity and which causes the fluid pressure to be reduced in a sufficient number of discrete stages to minimize noise and cavitation. The new flow restictor comprises an axial stack of annular discs, each provided with a plurality of annular baffle ribs projecting from its opposite end faces. The annular baffle ribs on one side of the disc are slotted along a number of equally spaced radii, and the ribs on the opposite side of a disc are similarly slotted, but along radii offset from the first set of radii. When a series of these discs is assembled in a stack, downwardly facing ribs of one disc fit between upwardly facing ribs of a disc next below, providing a series of annular passages interconnected by radial slots. Each series of slots is offset and located between the next series and the preceding series, so that the fluid flow is continually divided and recombined for velocity reduction.