| Patent Number |
Title Of Patent |
Date Issued |
| RE34610 |
Mounting means for fluid pressure transmitters |
May 17, 1994 |
| A mounting plate (20) is positioned between a manifold (18) and a pair of fluid pressure transmitters including a differential pressure transmitter (22) and a gauge pressure transmitter (24). The fluid pressure from high and low pressure taps or lines (14, 16) placed on opposite sides of |
| D398375 |
Manifold |
September 15, 1998 |
|
| 5823228 |
Valve manifold |
October 20, 1998 |
| A valve manifold having a manifold body with a first face, an opposed, substantially planar second face, and a peripheral wall, a first inlet, a second inlet, a first drain port, and a second drain port being formed in the first face, a first outlet and a second outlet being formed in th |
| 5803123 |
Mounting system for pressure transmitters |
September 8, 1998 |
| A mounting plate is disclosed that is adapted to be positioned between a main flow line and at least two differential pressure transmitters, to place the two differential pressure transmitters in fluid communication with a pair of pipeline taps on opposite sides of a flow reducing orific |
| 5765815 |
Rotary valve with pressurized energized seal |
June 16, 1998 |
| A rotary valve is provided including a valve element mounted within the flow path of a valve body and rotatable about a stem axis. A peripheral seating surface on the valve body surrounds the flow path through the valve body and is spaced from the stem axis for sealing engagement with |
| 5579800 |
Rotary valve position indicator and method |
December 3, 1996 |
| An improved rotary valve indicator apparatus (10) and method is disclosed that includes an electronics switch housing (15), filled with epoxy or other generally elastomeric material (29) to hermetically seal, thus environmentally seal, the switch housing (15). A pair of hermetically |
| 5549131 |
Automatic recirculation valve |
August 27, 1996 |
| An automatic recirculation valve having a body portion, a central hub integral with said body portion and inlet, main outlet and recirculation outlets. A main valve element responsive to flow from said inlet to said main outlet includes a hollow stem forming a bypass valve member through |
| 5518028 |
Adjustable magnet carrier for a valve position indicator |
May 21, 1996 |
| An adjustable magnet carrier 100 for a rotary valve indicator apparatus 10 is disclosed. The adjustable magnet carrier 100 includes an extension member 117 having an extension member body 118, an extension member body top 119, and an extension body base 121. Upper and lower magnet carrie |
| 5494071 |
Mounting system for pressure transmitters |
February 27, 1996 |
| A mounting plate is disclosed that is adapted to be positioned between a main flow line and at least two differential pressure transmitters, to place the two differential pressure transmitters in fluid communication with a pair of pipeline taps on opposite sides of a flow reducing orific |
| 5469805 |
High visibility valve position indicator |
November 28, 1995 |
| A high visibility indicator 12 for fitting to the rotatable drive shaft 11 of a rotary actuator 10 is capable of being rotated from a first position to a second position to indicate corresponding first and second positions of the actuator 10. The indicator 12 has an inner cylindrical mem |
| 5439619 |
Steam conditioning butterfly valve |
August 8, 1995 |
| The present invention is a steam conditioning valve for use in simultaneously reducing temperature and pressure in a superheated steam line. The invention provides a butterfly-type valve with desuperheating water nozzles oriented on its downstream face. In the preferred embodiment il |
| 5427354 |
Valve assembly |
June 27, 1995 |
| A valve comprising a valve body having a through opening that forms a fluid passage and having a wall surrounding a portion of the fluid passage, the wall defining a radially inwardly facing surface, the valve further including a valve element rotatably mounted in the valve body. To reta |
| 5400819 |
Measuring and regulating valve |
March 28, 1995 |
| Measuring and regulating valve assembly which includes a butterfly valve and a measuring flange, the measuring flange being situated upstream of the butterfly valve, the distance between the valve and the measuring flange being at least 0.6.times. the nominal passageway diameter, the |
| 5388806 |
Valve assembly having improved valve seat |
February 14, 1995 |
| A valve comprising a valve body having a first end, a second end, and a through opening forming a fluid flow passage and a wall surrounding a portion of the fluid flow passage, the fluid flow passage defining an axis that is co-axial with the wall. A valve element is rotatably mounted in |
| 5385121 |
Steam desuperheater |
January 31, 1995 |
| A desuperheater is disclosed which employs an acceleration orifice within a steam conduit to increase the velocity of steam flowing therethrough, creating a region of low pressure steam. A nozzle having an enclosed elliptical discharge orifice sprays small droplets of cooling water in a |
| 5333638 |
Automatic recirculation valve |
August 2, 1994 |
| An automatic recirculation valve having an inlet, a main outlet, and a recirculation outlet. A main valve element responsive to the flow between the inlet and main outlet and a bypass element responsive to the main valve element regulates the fluid flow to the recirculation outlet. The |
| 5333635 |
Fluid pressure relief system for pressure vessels |
August 2, 1994 |
| 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) |
| 5313976 |
Top entry ball valve and method of assembly |
May 24, 1994 |
| A top entry floating ball valve (10) and method of assembly including a downstream metal seat (62) mounted within an annular recess about a downstream flow passage (22) and an upstream metal seat (80) urged by a Belleville spring (78) into engagement with ball closure member (24). Ball |
| 5307831 |
Safety relief valve for pressure vessels |
May 3, 1994 |
| A fluid pressure safety relief system for a pressure vessel (10) having a main valve member (46) seating on a nozzle ring (38) under a mechanical force of a predetermined amount resulting from a calibrated counterweight (54). An operating rod (55) is connected between the main valve memb |
| 5294091 |
Stop cock for a liquid container |
March 15, 1994 |
| A stop cock for a liquid container, comprising a substantially annular valve housing, a circular valve rotatably mounted in the valve housing, a handle mounted on an operational shaft for rotating the valve between a closed and open position, a seat mounted in the valve housing and c |
| 5292105 |
Knifegate valve |
March 8, 1994 |
| The present invention provides an improved knifegate valve 1, comprising a body 3, a knifegate 2, a gland box 4, an actuator 9, 10, 11 for inserting the knifegate 2 through the gland box 4 into the valve body 3 and retracting it therefrom, a support 5,6 for supporting the actuator 9, 10, |
| 5282491 |
Fluid pressure relief system for pressure vessels |
February 1, 1994 |
| 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) |
| 5261437 |
Method and apparatus for monitoring and analyzing recirculation control system performance |
November 16, 1993 |
| A method and apparatus for monitoring and analyzing the performance of a recirculation control system are disclosed. According to the invention, the pressure of the liquid passing through the control system is measured directly by pressure and differential pressure transducers at the mai |
| 5246034 |
Fluid pressure relief system for pressure vessels |
September 21, 1993 |
| 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) |
| 5244183 |
Fugitive emission sealing assembly |
September 14, 1993 |
| A sealing assembly, usable with a valve or the like, having a movable shaft within a main housing and controlling a product under a first pressure. A cartridge housing forms a continuation of the main housing. An extension of the shaft extends through the cartridge housing and forms an a |
| 5172716 |
Recirculation valve |
December 22, 1992 |
| A recirculation valve for cooling a centrifugal pump. The invention comprises a valve casing having a first chamber for connection to a centrifugal pump and a second chamber for connection to a fluid outlet, a recirculation port for redirecting fluid from the first chamber to the cen |
| 5139229 |
Ball valve and method of assembly |
August 18, 1992 |
| A ball valve (10) has a one-piece valve body (12) with a small diameter bore (16) and an opposed large diameter bore (18) in fluid communication with a valve chamber (14). An annular flange (40) projects within the large diameter bore (18) and a washer-type square spring (50) is inserted |
| 5125624 |
Apparatus for a disc-stem connection |
June 30, 1992 |
| Disc-stem connection for a butterfly valve using interfitted slots on the disc and stem for mechanical connection. An oversize slot on the disc creates channels between the disc and the stem which allows deep penetration of a weld bead. Centralization of the stems within the oversize |
| 5054374 |
Rotary actuator |
October 8, 1991 |
| A rotary actuator defining a first arcuate chamber and a second chamber, the housing having an inwardly projecting, peripherally extending rib which defines an aperture in open communication with the arcuate chamber, a peripherally extending groove being formed in the rib in surrounding |
| 5044257 |
Rotary actuator and method for forming a rotary piston |
September 3, 1991 |
| Improved techniques are provided for manufacturing a toroidal arc segment piston for use in a fluid pressure responsive rotary actuator, and for forming an actuator housing defining an arcuate chamber for receiving a rotary actuator piston. A moldable polymeric material is positioned wit |
| 5012841 |
Pressure reducing and conditioning valves |
May 7, 1991 |
| Pressure reduction and conditioning valve for simultaneously reducing the pressure and temperature of steam. The invention comprises a valve body divided into first and second chambers, the first chamber having an inlet port for the introduction of superheated steam under high pressure i |
| 5007330 |
Rotary actuator and seal assembly for use therein |
April 16, 1991 |
| A rotary actuator comprising a housing which defines an arcuate chamber, the housing including a first monolithic portion in which the arcuate chamber is completely contained, a piston disposed in the housing for reciprocable movement in the arcuate chamber, a shaft journaled in the |
| 5005605 |
Conditioning valve |
April 9, 1991 |
| A conditioning valve for simultaneously reducing the pressure and temperature of steam. The invention comprises a valve body divided into first and second chambers, the first chamber having an inlet port for the introduction of superheated steam under high pressure into said conditio |
| 5000851 |
Turbine filter with pressure seal bonnet |
March 19, 1991 |
| A strainer for preventing debris from entering a turbine. The strainer comprises a casing having an inlet conduit for introducing a flow medium into said strainer and an outlet conduit extending substantially perpendicular to said inlet conduit for expelling said flow medium, said ou |
| 4967783 |
Recirculation valve with pilot valve |
November 6, 1990 |
| A recirculation valve with pilot valve. The claimed invention comprises a housing containing an inlet chamber for receiving liquid from a pump, an outlet chamber for transporting liquid downstream of said valve and a recirculation port for recirculating liquid back to said pump; check va |
| 4967779 |
Method of installing a valve seat in a valve body |
November 6, 1990 |
| A method of installing a valve seat in a valve body wherein the valve body is provided with an annular, radially inwardly extending rib defining a circular opening through the valve body and the seat member is an annular member having an annular extending web, a first annular flange exte |
| 4953276 |
Apparatus for inserting valve seats in valve bodies |
September 4, 1990 |
| An apparatus for inserting a resilient valve seat into a valve body, the valve body being of a type having a radially inwardly projecting annular rib which defines a bore through the valve body, the valve seat being generally annular and having an annular web portion, a first annular |
| 4941502 |
Low pressure recirculation valve |
July 17, 1990 |
| A low pressure recirculation valve for cooling a centrifugal pump. The invention comprises a unitary valve casing divided into a first valve chamber and a second valve chamber, the casing having a first port for introducing fluids into said first chamber, and a second port for expell |
| 4899775 |
Corrosion-resistant overlay for the edge of butterfly valves |
February 13, 1990 |
| An overlay for a valve disk of a butterfly or similar valve is formed from a strip of corrosion-resistant material. The strip is preferably profiled to conform to the edge of the disk and has an overall length less than the circumference of the disk. Both ends of the overlay are welded t |
| 4779639 |
Automatic recirculation valve |
October 25, 1988 |
| An automatic recirculation valve is disclosed which utilizes three valve elements to accomplish particularly smooth and nondisruptive switching of fluid flow between main fluid flow and recirculation fluid flow. A unique back pressure control valve provides close control over changes in |
