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Patent Searching and Data


Matches 201 - 250 out of 3,137

Document Document Title
WO2007081702B1
A diaphragm valve including a valve body, a diaphragm assembly and an actuator assembly having a housing body that isolates the actuator from the ambient atmosphere. The diaphragm assembly is welded to the valve body to reduce and/or eli...  
WO/2007/142989A3
A control stop (16) for a flush valve (22) for a urinal or toilet fixture includes a housing (28) defining a flow chamber (38) divided by a valve seat (42) into inlet (44) and outlet (46) sections. A valve structure (54) is biased toward...  
WO/2008/007685A1
A shaft seal packing exhibiting high sealing ability in initial assembly and also exhibiting, even after the packing is retightened, excellent sealing ability by an increased seal surface pressure obtained through an effect of pressing a...  
WO/2007/081702A3
A diaphragm valve including a valve body, a diaphragm assembly and an actuator assembly having a housing body that isolates the actuator from the ambient atmosphere. The diaphragm assembly is welded to the valve body to reduce and/or eli...  
WO/2007/142989A2
A control stop (16) for a flush valve (22) for a urinal or toilet fixture includes a housing (28) defining a flow chamber (38) divided by a valve seat (42) into inlet (44) and outlet (46) sections. A valve structure (54) is biased toward...  
WO/2007/120836A1
The present invention is directed toward a contamination control arrangement for a valve having a valve housing, a land positioned in the valve housing, a valve member including a valve shaft and a valving portion operable for engaging a...  
WO/2007/085236A1
The invention relates to a slide bar cap for slide bars comprising a spindle that projects out through the slide bar cap, said spindle activating the actuator that blocks the passage of the slide bar. The aim of the invention is to provi...  
WO/2007/005860A3
According to some embodiments, a first sealing portion is provided on a valve shaft to seal a chamber. The first sealing portion may, for example, seal the chamber when the valve shaft is inserted a first distance into an opening of the ...  
WO/2007/023970A1
A fluid control apparatus is provided with a fluid control valve for controlling the pressure of a fluid by pressure operation of a fluid for control; a flow volume measuring apparatus for measuring the flow volume of the fluid, converti...  
WO/2007/022721A1
A stem seal using triangle-sectional sleeve as a cylinder seal or a stem seal using a coupling set of spherical wedge/socket as a shoulder seal could endure solely the bursting pressure test without leaking. The section of said sleeve is...  
WO/2007/023972A1
A fluid control apparatus is provided with a fluid control valve for controlling the flow volume of a fluid by changing an opening area of a flow channel; a flow volume measuring apparatus for measuring the flow volume of the fluid, conv...  
WO/2007/021619A1
A packing nut assembly for a control valve having a valve body and a valve stem includes a packing box (40) arranged for operative coupling to the valve body and having a primary bore (66) sized to receive the valve stem (38) and first a...  
WO/2006/085081A3
A dosing apparatus in a form-fill-seal packaging machine comprises a delivery nozzle (12), a valve closure member (34) co-axial with the nozzle (12) and reciprocable co-axially relative thereto and bounding with the nozzle (12) an annula...  
WO/2007/005860A2
According to some embodiments, a first sealing portion is provided on a valve shaft to seal a chamber. The first sealing portion may, for example, seal the chamber when the valve shaft is inserted a first distance into an opening of the ...  
WO/2006/118051A1
A seal structure sealing a fitted part between the guide surface of a bearing part and a shaft part to prevent a fluid from flowing in a direction from a high-pressure fluid side to a low-pressure fluid side. The seal structure comprises...  
WO/2006/113714A1
Precision metering valves include a body (12) having a fluid inlet port (14), a fluid outlet port (16), a fluid chamber (18) interposed therebetween, and an orifice (38) disposed within the fluid chamber. The orifice has an opening that ...  
WO/2006/101600A1
Split packing followers for use with valves are disclosed. A disclosed packing follower includes a first member having a first portion of a flange and a first portion of a curved wall extending substantially perpendicularly from the firs...  
WO/2006/072468A1
The invention relates to a stopcock for fluids, comprising a housing (2) with an inlet (3) and an outlet (4) access and a closure plug (1) in the housing, with a spindle nut (9) and a closure membrane (6) adhering thereto, controlling th...  
WO/2006/052237A1
The present invention is directed to a metal valve stem seal and sealing system comprising a valve body; a metal valve stem housed within the valve body; a bonnet member housed within the valve body; a U-shaped metal stem gasket position...  
WO2005106302A8
A backup stem seal for a gate valve retains pressure in the body when the valve is in the closed position. The backup seal is secondary to the main stem seal assembly (20) in the bonnet (12). It features metal-to-metal contact between su...  
WO/2006/042545A1
The invention provides a valve with a bellow (1, 4) and a method of making such a valve with a bellow. The bellow comprises a sidewall (1) and a bottom part (4) formed from a single plate of a sheet material. The bellow thus forms a comp...  
WO/2005/121619A1
A valve body capable of preventing a seat part from being deformed by a stress caused by nonuniform tightening and completely closing a valve in a closed state and the valve having the valve body. The body (12) of the valve (10) formed o...  
WO/2005/106302A1
A backup stem seal for a gate valve retains pressure in the body when the valve is in the closed position. The backup seal is secondary to the main stem seal assembly (20) in the bonnet (12). It features metal-to-metal contact between su...  
WO/2005/095833A1
An embodiment of the present invention relates to self-contained biasing assemblies for use with fluid flow devices or assemblies, such as valve and pressure regulator assemblies. A self-contained biasing assembly (16) of a fluid flow as...  
WO/2005/080844A1
A catering tap comprising: an operating handle (10) ; a body (1) containing an inlet (2), an outlet (3) and a valve ; the valve comprising a valve member (4) cooperating with a valve seat (5), the valve member (4) being moveable between ...  
WO/2005/075865A1
A valve has a drive section (2) with a piston (4) for axially driving a valve body (7), a valve main body (1) having at one end in the axial direction a valve chamber (17) for receiving the valve body (7), and a base seat (3). The drive ...  
WO/2005/054733A1
A method and apparatus for setting a desired load applied to a device such as a valve. A tool (40) is applied to the valve (10). Force applied to the tool is transmitted to the valve packing (12). A selected load force is applied to the ...  
WO2004113775A3
A low-leakage valve apparatus which reduces fugitive emissions from valves to the ambient atmosphere. A secondary packing chamber or gland is installed on an existing valve to intercept leakage past the valve's original primary packing g...  
WO2003106874A8
A method for producing multilayer seals and multilayer seals thereby obtained, wherein the pressure in the volume between the layers is brought to a preset value, at least one of the faces between the layers being provided with channels ...  
WO/2005/045288A1
A diaphragm valve (1) where an air-tight space is formed, by a diaphragm valve body (20), in an opening section in the upper surface of a body (10), an urging force of an urging member (33) presses the diaphragm valve body to a valve sea...  
WO/2005/040646A1
An apparatus for sealing an operating member of a sliding or rotating assembly includes a seal formed by a composition of materials. A plurality of abrasive particles are incorporated into the composition and thus positioned within the s...  
WO/2005/033564A1
A chemical liquid valve (1A) with stable sealing performance allowing a diaphragm (7) connected to a piston rod (10A) to come into contact with or apart from a valve seat (5) installed between an input port (3) and an output port (4). A ...  
WO2003102451A3
A rotary actuator for a valve includes a cam mechanism for transmitting opening force to a movable valve member to move the valve member off a valve seat, against the bias of a closing spring. The cam mechanism does not transmit spring f...  
WO/2005/022018A1
[PROBLEMS] A receiving opening of a joint for working fluid, the receiving opening having high breaking strength and excellent corrosion resistance, and a valve having the receiving opening are provided. [MEANS FOR SOLVING PROBLEMS] A fe...  
WO/2005/015004A1
A metering device for a pressurised fluid comprises a housing (1), a valve needle (2) and a bushing element. The device is formed by crimping the bushing element to the valve needle to avoid cracking of the needle. A further adhesive sea...  
WO2004081427A3
A sanitary diaphragm valve is provided that includes a generally dome shaped diaphragm (E) having a central boss (12) that can be connected to or driven by a valve actuator (C). The diaphragm (E) includes an outer peripheral edge (14) an...  
WO2002065003A3
A plurality of embodiments of a flexible, discrete valve seat according to the present invention are provided for use in a high-purity valve. In one embodiment, the valve seat is retained in contact with a sealing surface on the valve bo...  
WO/2005/010419A1
A low pressure backseat sealing apparatus having a flexible sealing lip which contacts the backseat prior to contact between a stem shoulder and the backseat, with the stem shoulder positioned above the flexible lip, thereby limiting ste...  
WO/2004/113775A2
A low-leakage valve apparatus which reduces fugitive emissions from valves to the ambient atmosphere. A secondary packing chamber or gland is installed on an existing valve to intercept leakage past the valve's original primary packing g...  
WO/2004/109170A1
The invention relates to a seal to be used as a valve stem seal in a valve for controlling flows containing solid material such as slurry flows with an actuator. The seal (4) is positioned outside of the valve body (10) so that the insid...  
WO/2004/104455A1
A dynamic sealing arrangement for preventing leakage of a fluid along a shaft includes multiple seals and pressurized barrier sealarit. According to one aspect, at least three seals are arranged along the shaft with pressurized barrier s...  
WO2004081428A3
An adjustable mechanism (60) for a valve or actuator is provided. The adjustable mechanism cooperates with one or more pistons (42), which in turn cooperates with a valve element (30) to limit the axial displacement of the valve element ...  
WO/2004/081427A2
A sanitary diaphragm valve is provided that includes a generally dome shaped diaphragm (E) having a central boss (12) that can be connected to or driven by a valve actuator (C). The diaphragm (E) includes an outer peripheral edge (14) an...  
WO/2004/081428A2
An adjustable mechanism (60) for a valve or actuator is provided. The adjustable mechanism cooperates with one or more pistons (42), which in turn cooperates with a valve element (30) to limit the axial displacement of the valve element ...  
WO/2004/072526A1
A fluid control valve, in which the usual metal stem guide bushings have been eliminated, includes a valve bonnet (30) and a packing nut (56) threadably engaging the valve bonnet (30). A valve stem (26) passes through the valve bonnet (3...  
WO/2004/065834A1
The present invention relates to a stuffing seal comprising a case (3a) provided with an axial hole (3a) for the passage of a stem (103) being mobile with respect to said case (3); a gasket or packing (5) arranged in a seat (3b) formed w...  
WO/2004/040109A1
A housing flange unit comprising a housing flange (1) wherein a butterfly valve shaft (2) is rotatably mounted in a perpendicular position in relation to the longitudinal axis of the housing flange (1) and comprises a butterfly valve (3)...  
WO/2004/027297A1
The invention relates to a device for locking and/or sealing a conduit used for conveying preferably hot media, particularly dust-laden gases, preferably for locking and/or sealing a conduit used of conveying hot gases that are optionall...  
WO/2004/025159A1
A control valve includes a valve body (14) defining a top opening. A bonnet (28) is provided for closing off the top opening of the valve body. A stem (40) housed in the bonnet and the valve housing slidably moves a valve plug (30) in th...  
WO2003038321A3
A diaphragm control valve provides substantially straight-through fluid flow, which enables a high-flow capacity with minimal pressure loss. The non-planar diaphragm (200) when standing in a non-stressed state, is substantially an annulu...  

Matches 201 - 250 out of 3,137