| Patent Number |
Title Of Patent |
Date Issued |
| RE32409 |
Valve assembly |
April 28, 1987 |
| A wafer-type valve for securing between two flange fittings comprises a valve body having a flowway therethrough, connection formations integrally adjoining the valve body and extending radially therefrom, a valve element mounted in the flowway, and adapter means adjoining the valve body |
| 5090658 |
Bellows sealed rotary valve and seal assembly |
February 25, 1992 |
| An improved rotary valve is provided with a bellows surrounding a bent shaft to create a hermetic seal and thereby prevent fluid loss from the interior of the valve body. The shaft is provided within a seal assembly housing, and has a lower end axis offset from the valve stem axis, and a |
| 5042151 |
Method for removing and inserting valve seats |
August 27, 1991 |
| A method for removing and inserting a tubular frusto-conical seat (26) from the seat cavity (22) of a valve chamber (20) in a valve body (12). The tool (46) for performing the method has a laterally extending protuberance (60) on its inner end adapted to be received within a port (38) of |
| 4982483 |
Valve seat tool for removing and inserting value seats |
January 8, 1991 |
| A valve seat tool (46) and method for removing and inserting a tubular frusto-conical seat (26) from the seat cavity (22) of a valve chamber (20) in a valve body (12). The tool (46) has a laterally extending protuberance (60) on its inner end adapted to be received within a port (38) of |
| 4964432 |
Method and means for mounting valve member on valve stem |
October 23, 1990 |
| A method and means for removably connecting a valve member (62, 62A) on a valve stem (46, 46A) for movement between open and closed positions relative to a valve seat (24, 24A). The removable connection includes a split frustoconical connector (76, 76A) forming two halves (78, 78A) which |
| 4898201 |
Portabl tool for cleaning valve bores and associated inlet passage |
February 6, 1990 |
| A portable cleaning tool (12) for cleaning the bore (38) of a valve (10) comprising a tool fitting or connector (52) with a reduced diameter inner end portion (82) having an O-ring (86) for sealing against an enlarged bore portion (40) of the valve body (18). The conenctor (52) is thread |
| 4870989 |
High temperature safety relief system |
October 3, 1989 |
| A high temperature safety relief system for a pressure vessel (10) including a pilot controlled main relief valve (16) and an associated non-flowing pilot valve (34) with high temperature metal or metal like seals for temperatures as high as around 1,000.degree. F. provided for both |
| 4865074 |
High temperature safety relief system |
September 12, 1989 |
| A high temperature safety relief system for a pressure vessel (10) including a pilot controlled main relief valve (16) and an associated non-flowing pilot valve (34) with high temperature metal or metal like seals for temperatures as high as around 1000.degree. F. provided for both t |
| 4862910 |
Check valve with disc centering device |
September 5, 1989 |
| The check valve includes a disc-shaped closure member mounted to the valve body for sealing engagement with an annular seat in the valve body. A stem is rotatably mounted to the valve body so that the closure member can swing into and out of engagement with the annular seat. The stem ext |
| 4848397 |
High temperature safety relief system |
July 18, 1989 |
| A high temperature safety relief system for a pressure vessel (10) including a pilot controlled main relief valve (16) and an associated non-flowing pilot valve (34) with high temperature metal or metal like seals for temperatures as high as around 1,000.degree. F. provided for both |
| 4846441 |
Methods and apparatus for adjusting a valve closure member |
July 11, 1989 |
| Improved techniques are provided for adjusting the axial position of a rotatable valve closure element carrying an elastomeric annular seal with respect to a metallic valve body. An adjustable nut is threaded to the valve body and includes a recess for receiving a lower stem of the valve |
| 4846225 |
Transmission assembly for use with double block and bleed system |
July 11, 1989 |
| A transmission assembly for operating a double block and bleed valve system having a first block valve with a first valve shaft, a second block valve with a second valve shaft and a bleed valve disposed between the first and second block valves, the transmission assembly comprising a cam |
| 4846212 |
Bleed valve assembly for double block and bleed system |
July 11, 1989 |
| A bleed valve assembly for use in a double block and bleed valve system having first and second block valves comprising a body which is disposed between the block valves which forms a chamber, a flowway having a generally smooth flowway surface defined by the body and partially defin |
| 4828221 |
Valve assembly |
May 9, 1989 |
| An improved rotary valve assembly having a valve body, a valve element rotatably disposed in the body and having a first bore which is coaxial with the axis of rotation of the valve element and a shaft member rotatably mounted in the valve body and extending into the first bore into |
| 4817213 |
Method for forming a torus and a piston made therefrom for use in a rotary actuator |
April 4, 1989 |
| A method of forming a finished torus of precise dimension which can be used to form piston segments for use in a rotary actuator in which a torus workpiece is rigidly mounted on a support in such a manner as to leave a first hemi-toroidal surface of the torus workpiece exposed, the suppo |
| 4773625 |
Corrosion-resistant overlay for the edge of butterfly valves |
September 27, 1988 |
| 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 |
| 4711427 |
Apparatus for connecting a valve element to a valve stem |
December 8, 1987 |
| A valve stem-valve element assembly wherein a valve element is provided with a valve stem bore, a valve stem being received in the valve stem bore, there being a bore transverse to the valve stem bore in the valve element which is in register with the hole in the valve stem, a threaded |
| 4701938 |
Data system |
October 20, 1987 |
| A data system for transmitting multi-state data streams between a data transmitting station (1,10) and a data receiving station (2), coupled together by a data transmission line (3). Associated with the data transmitting station (1,10) is an encoder (10) for encoding the data stream |
| 4685611 |
Butterfly valve construction having a composite seat |
August 11, 1987 |
| A butterfly valve having a composite, reinforced seat, the valve having a one piece body defining a radially inwardly extending annular rib, the valve seat being a U-shaped annular member of a generally resilient material and having a radially outwardly opening channel which engages the |
| 4682758 |
Disk/stem connection apparatus for butterfly valve |
July 28, 1987 |
| A means for adjusting the relative positioning of a valve closure element with respect to a valve seat is formed by a hub on the closure element having a valve stem receiving bore and at least two generally opposed threaded passages intersecting the bore. Threaded members are received in |
| 4659064 |
Apparatus for fixing the position of a valve element shaft in a bore |
April 21, 1987 |
| An apparatus for fixing the longitudinal position of a shaft, e.g., a valve stem, within the bore of a body, e.g., a valve body comprising a shaft having a plurality of peripherally extending, generally equally spaced, discrete grooves, the grooved portion of the shaft being received in |
| 4651763 |
Fire-safe ventilation valve |
March 24, 1987 |
| A means and method for assuring a tight sealing closure of a valve in a high temperature condition, such as fire, is provided by an expendable link on the downstream side of the valve stem and an intumescent material and piston on the upstream side of the valve stem so that, at an elevat |
| 4649949 |
Fireproof valve assembly and seal element for use therein |
March 17, 1987 |
| A valve assembly comprising a valve housing defining an internal valve cavity and a fluid flow passageway, a valve element rotatably received in the valve cavity to control flow through the passageway, one of the valve housing or the valve element defining a seating surface, the other |
| 4648418 |
Fireproof valve assembly and valve element for use therein |
March 10, 1987 |
| A valve assembly comprising a valve housing defining an internal valve cavity and a fluid flow passageway, a valve element rotatably received in the valve cavity to control flow through the passageway, one of the valve housing or the valve element defining a seating surface, the other |
| 4616803 |
Declutchable valve override |
October 14, 1986 |
| The invention comprises an improved override and an interrelated valve system. A main valve has an actuator, the actuator in turn having a control for communicating a control signal to the actuator for selectively causing the actuator to place the main valve in its open or closed pos |
| 4589281 |
Material level detector and control |
May 20, 1986 |
| Disclosed is a monitoring system and method for detecting the presence or absence of material at a location. The apparatus may generally be constructed to include a sensing unit, including an antenna probe for positioning at the location wherein material is to be detected, and a cont |
| 4570901 |
Positioning assembly for use with rotatable valves |
February 18, 1986 |
| A positioning assembly for a rotatable valve having a valve body, a rotatable valve element and a valve stem rotatable with the valve element, the assembly including a handle with an engagement portion for engaging the valve stem and a positioning or indexing member carried by the valve |
| 4541612 |
Rotatable shaft assembly |
September 17, 1985 |
| A rotatable shaft assembly comprising a body with a bore having a first end and a second end and an annular abutment formed intermediate the first and second ends of the bore and extending radially inwardly into the bore, a shaft or stem rotatably received in the bore, said shaft having |
| 4505290 |
Valve seat assembly and valve |
March 19, 1985 |
| A seating assembly for use in a rotary valve comprising a metallic seat ring having a radially inner metallic sealing section and a polymeric seat ring having a polymeric sealing section for sealing engagement with a valve element, each of said rings having a radially outer retaining |
| 4496135 |
Alignment maintaining apparatus for trunnion mounted valves |
January 29, 1985 |
| An apparatus for maintaining valve element/valve seat alignment in valve assemblies employing trunnion mounted valve elements, the apparatus including a shaft or trunnion attached to the valve element and provided with an axially extending bore which receives an expandable plug, axially |
| 4458706 |
Block and bleed valve system |
July 10, 1984 |
| This invention relates to a block and bleed valve system comprising a chamber 2 having first and second fluid passage openings 6,7 provided with first and second valves 10,11, and connected in use of the system to respective pipe sections 26,27 from which the chamber 2 is isolatable in |
| 4457490 |
High temperature valve and seat therefor |
July 3, 1984 |
| A valve seat for use in a fluid control valve employing a pivotable valve closure element to open and close the valve, the seat comprising an annular polymeric member provided with a seating surface which sealingly engages the valve element when the valve is in the closed position, the |
| 4413393 |
Method of manufacturing a valve assembly |
November 8, 1983 |
| A disc-type valve assembly and method of making same. The assembly includes a valve body having a flowway with a disc-like valve element therein. A shaft has an inner portion directly rigidly connected to the valve element by a pre-stressed self-connection and an outer portion rotatably |
| 4411438 |
Packing gland |
October 25, 1983 |
| A stuffing box assembly comprises a housing including a main body, a tubular neck extending outwardly from the main body, and a housing flange extending generally radially outwardly from the neck and longitudinally spaced from the main body. A bore extends longitudinally through the neck |
| 4410163 |
Valve seat |
October 18, 1983 |
| A seat ring for a rotary valve assembly comprising a radially inner seal section for sealing engagement with a valve element, a radially outer retaining section for mounting the seat ring in a valve body, and an intermediate spacer section interconnecting the sealing and retaining se |
| 4399833 |
Valve assembly |
August 23, 1983 |
| A wafer-type valve for securing between two flange fittings comprises a valve body having a flowway therethrough, connection formations integrally adjoining the valve body and extending radially therefrom, a valve element mounted in the flowway, and adapter means adjoining the valve body |
| 4280549 |
Apparatus and process for die-casting |
July 28, 1981 |
| Apparatus and method for producing a die cast article, such as a gear wheel having helical teeth, in which the die cavity is defined by fixed elements and a rotatable element. On completion of the casting the cast article can be ejected from the casting cavity on relative rotation betwee |
| 4275867 |
Valve assembly and method |
June 30, 1981 |
| A disc-type valve assembly and method of making same. The assembly includes a valve body having a flowway with a disc-like valve element therein. A shaft has an inner portion directly rigidly connected to the valve element by a pre-stressed self-connection and an outer portion rotatably |
| 4229907 |
Slide gate |
October 28, 1980 |
| Disclosed is a lost motion coupling for connecting a propulsion device with a load to be moved. The coupling permits the propulsion device to generate significant momentum before applying driving force to the load. In the embodiment described, a traveling nut is driven in translational m |
| 4226118 |
Level detector |
October 7, 1980 |
| Disclosed are apparatus and methods for detecting the extent to which material is present at a predetermined sensing area. An antenna probe is extended throughout the sensing area, and is loaded with a signal from an oscillator. A reference oscillator provides a constant-frequency signal |
| 4222267 |
Material level detector circuit |
September 16, 1980 |
| Disclosed are apparatus and methods for detecting the presence, or absence, of material at a predetermined location. An oscillator generates a constant-frequency, constant-amplitude signal which is fed through a load resistor to an antenna probe positioned at the sensing location. The |
| 4189950 |
Manual control apparatus |
February 26, 1980 |
| A manual override apparatus for use with normally, automatically, powered driving assemblies such as valve actuators, the override apparatus having a body with a bore therethrough, a housing secured to the body and having an axial bore which registers with the bore in the body, a rotatab |
| 4169543 |
Amplitude responsive detector |
October 2, 1979 |
| Disclosed are apparatus and method for detecting the presence, or absence, of material at a predetermined location. A crystal controlled oscillator generates a constant-frequency, constant-amplitude signal which is fed through a load resistor to an antenna sensor circuit, including an an |
| 4080844 |
Manual control apparatus |
March 28, 1978 |
| A manual override apparatus for use with normally, automatically, powered driving assemblies such as valve actuators, the override apparatus having a body with a bore therethrough, a housing secured to the body and having an axial bore which registers with the bore in the body, a rotatab |
| 4079746 |
Valve assembly having adapter means |
March 21, 1978 |
| A wafer valve assembly for securing between two flange fittings, each of the flange fittings having a flow passageway therethrough and comprising an annular flange extending radially from the flow passageway. The valve assembly comprises a valve body having a flowway therethrough and a v |
| 4065979 |
Traveling nut stop assembly |
January 3, 1978 |
| A stop assembly for limiting relative rotation comprising inner and outer coaxial members relatively rotatable but longitudinally fixed with respect to each other. The outer member at least partially surrounds the inner member and is at least partially radially spaced therefrom so that a |
| 4023432 |
Actuator having universal-type joint assembly |
May 17, 1977 |
| The present invention pertains to an actuator having a unique universal-type joint assembly incorporated therein. The actuator comprises a stationary member and a movable member mounted for movement with respect to the stationary member. The actuator further comprises a first drive m |
| 3985151 |
Valve actuator |
October 12, 1976 |
| A valve actuator for converting linear motion to rotary motion comprising: a housing; a force transmitting member disposed in the housing responsive to pressure applied to one side thereof for travel between first and second terminal positions; a rod member connected to the force tra |
| 3982725 |
Valve actuator |
September 28, 1976 |
| A low profile fluid powered actuator particularly for valves of the type in which the valve element is rotated to open and close the flow passageway through the valve body, the actuator having a novel internal porting system, means for direct attachment of the valve stem to the shaft of |
