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7628381 Method for replacing seals in recreational vehicles gate valves without removing valve housing from plumbing  
The present invention provides a method for replacing seals in recreational vehicles gate valves without removing valve housing from plumbing. The method for replacing blade seals in a gate valve...
7611122 Closure device for the vacuum-tight closing of an opening in a wall  
A closure device for closing an opening in a wall in a vacuum-tight manner comprises a closure plate, a carrying unit which carries the closure plate and which has at least one longitudinal...
7600739 Compartmentalized electric/manual gate valve  
The present invention provides a gate valve for controlling the flow of a medium through suitable plumbing, featuring a valve housing for coupling the gate valve to the suitable plumbing; a...
7584939 Surge flushing device for wastewater channels and the like  
A surge flushing device for wastewater systems and the like includes a wastewater channel having an arc-shaped wall portion, as well as a flushing blade element having a marginal portion thereof...
7523916 Fail-safe gate valve  
A gate valve has a body with a gate chamber intersected by a flow passage and a stem chamber extending from the gate chamber. A gate is carried in the gate chamber. A stem, when rotated, causes...
7500649 Vacuum valve drive  
A vacuum valve drive for linear displacement of a valve closure along an adjustment axis between an opened and closed position, and a vacuum valve comprising the vacuum valve drive, are provided....
7481339 Hygienic dispensing package  
A hygienic dispensing package includes a container having a top panel with a dispensing aperture selectively covered by a slide closure. The closure rides within a flat channel of the top panel and...
7464913 Orifice valve for bulk solids  
An orifice valve having a moveable gate to control the flow of solids in a closed conveying system. The invention encompasses a valve housing with two complementary valve sections, each of a...
7458559 Bi-directional knife gate valve apparatus and method  
An improved method and apparatus for a valve assembly features a valve body, a first seat ring mounted in the valve body, a second seat ring mounted in the valve body, and a retractable blade gate...
7455076 Apparatus and method for controlling exhaust pressure in semiconductor manufacturing  
An apparatus and method for controlling exhaust produced by a reactive chamber is provided. The apparatus for controlling exhaust may include, for example, a valve body having an exhaust hole for...
7445018 Recycling furnace flow management sliding gate valve for low melting temperature metals  
A sliding gate valve for use within a bath of molten aluminum. The sliding gate valve includes a pair of opposed ceramic cleaner plates that sandwich a reciprocable gate body. The cleaner plates...
7441747 Vacuum gate  
The improved vacuum gate of the present invention is capable of airtight isolation or interconnecting between two vacuum chambers. The improved vacuum gate is based on mechanical mechanism which...
7422653 Single-sided inflatable vertical slit valve  
A vacuum chamber having a gate valve including a chamber housing defining an internal vacuum region and first and second openings through the chamber housing and a gate valve secured to the chamber...
7413163 Rack and pinion wheel drive for an industrial sliding blade damper  
This invention discloses improvements to a damper of the type used in industrial applications to open and close ducts carrying noxious or corrosive materials, such as combustion by-products. The...
7357371 Isolation valve seal  
Methods and apparatus for sealing an aperture that provides fluid communication between a second and first chamber of a dual chamber orifice fitting. A sealing assembly comprises a closure member...
7332040 Semiconductor manufacturing system having a vaporizer which efficiently vaporizes a liquid material  
A vaporizer can efficiently vaporize a liquid material under a depressurized atmosphere. The liquid material is temporarily stored in a liquid storing chamber, and is supplied to a vaporizing...
7306200 Controlled rate feeder systems for fine particle solids and methods thereof  
A controlled rate feeder system for fine particle solids and a method thereof includes a seat-and-backseat structure, a seat plate assembly, a backseat plate assembly, at least one biasing device,...
7284296 Car wash blower control  
A valve plate ( 54 ) is slidably moved on a frame ( 52 ) by an actuator ( 62 ) between open and closed positions to control the supply of air sucked into the inlet ( 44 ) of a blower system ( 40 )...
7255328 Low friction coatings for dynamically engaging load bearing surfaces  
A gate valve has a body, the body having a cavity and a flow passage intersecting the cavity. A seat ring is mounted to the body at the intersection of the flow passage and the cavity, the seat...
7249750 Pressure balanced fluid control device  
The present invention is directed to a pressure balanced fluid control device. In one illustrative embodiment, the device comprises a body, a bonnet coupled to the body, a valve stem operatively...
7237567 Vacuum valve  
A vacuum valve is disclosed. The vacuum valve comprises a body and a cylinder, mounted at the upper end of the body having a cavity including a piston, the center of the piston provided a piston...
7204394 Liquid container having gate valve  
A container for storing and dispensing liquids such as gasoline has a gate valve wherein the gate valve comprises a thin, substantially flat slide member optionally angled at a portion thereof. The...
7134642 Vacuum gate valve  
The invention provides a vacuum gate valve for closing off an opening. The vacuum gate valve can have a valve plate that can be turned so that the alignment of the valve plate will adapt to a valve...
7131451 Apparatus for controlling and metering fluid flow  
A device for metering and controlling fluid flow includes a variable orifice and is configured to use a pressure sensor. The device includes a fluid flow conduit having at least one planar inner...
7063107 Dual chamber orifice fitting body  
A dual chamber orifice fitting, including a body with a lower chamber in fluid communication with a pipeline and a top with an upper chamber in fluid communication with the lower chamber. A valve...
7044149 Pipe fitting  
A pipe fitting with a body adapted for connection at a first end thereof to a supply pipe and at a second end thereof to a distribution pipe so as to permit fluid communication between the supply...
7040337 Valve override system  
A valve override system for allowing a user to restore flow through a gate valve that has failed in the closed position. The valve override system includes an engagement assembly being designed for...
7017886 Sliding gate valve  
A sliding gate valve, a sealing gasket for the valve, and a method of assembling the valve that may be used to govern the flow of a fluid such as a liquid or a gas. The sealing gasket may be...
7014164 Device for protection against explosions in pipe-line  
A shut-off device ( 1 ) for protection against explosions in a pipe-line is fitted with a slide valve plate ( 10 ) movable transversely to the direction of flow (A). The slide valve plate is...
6942192 Gate valve with flow-through gate  
A gate valve for controlling the flow of fluid through a component having a fluid flow passage that includes at least a first branch and a second branch, the gate valve comprising a gate cavity...
6932111 Gate valve apparatus  
A gate valve apparatus minimizes the chance that radicals and plasma in exhaust gas will contact a main valve seal, thereby preventing deterioration of the main valve seal. Slats of a flow control...
6896239 Method and apparatus for locking a valve  
An apparatus for locking a valve having a valve member movable between an open position and a closed position. The apparatus includes an actuator assembly, a locking base, a locking shaft, and a...
6893001 Gate valve apparatus  
A gate valve apparatus comprising an elastic seal member inserted into a pipe, a pressure member for elastically deforming the elastic seal member under pressure, a drive shaft for moving the...
6840282 Mechanisms to set a hollow device into and to retrieve said hollow device from a flow pipe  
A method to set a hollow device into an undersea flow pipe uses a flexible pig driven by a flow flowing into said flow pipe to displace a hollow device to a point where a stop means halts a...
6810903 Conduit flow controller  
The invention is an improved conduit flow controller for selectively controlling the flow of fluid through an elongated conduit. The conduit has an aperture defined by a continuous peripheral edge...
6786234 Drainage tile flow regulator  
The title flow regulator disclosed is used for regulating the level of water in the fields of an agricultural operation according to seasonal needs by a mechanism for adjusting the outflow of water...
6719272 Valve and vacuum processing device with the valve  
The valve 10 includes a valve main body 11 having an opening 11 A and forming a space which creates a part of a gas flow path, a first valve member 12 , provided in the valve main body, for...
6682047 Ceramic valve  
The electrically operable ceramic valve of a beverage machine comprises at least one inlet ( 2 ), at least one outlet ( 4 ), and at least one liquid flow channel ( 8 ) extending between the inlet...
6681790 Ported slide gate valve with gate motion to break scale build up  
A ported slide gate valve having a gate for regulating the flow of a fluid through the valve, a seat located in the valve interior, and a means for causing the gate to move in such a manner that...
6679472 Pressure balanced choke and kill connector  
A choke or kill line connector for a subsea blowout preventer stack which is slide member operated to provide pressure balanced design to eliminate the potentially high forces associated with...
6663079 Resilient seat gate valve  
A valve arrangement includes a valve housing that defines a product passageway and a valve seat within the product passageway. A valve wedge is disposed within the housing passageway, and moves...
6655413 Method and apparatus for pressure testing pipe lines  
A method and device for pressure testing a pipe line is provided wherein a fitting is inserted into the pipeline by inserting male ends of the pipeline into female ends of the fitting to define a...
6588728 Modified isbester (MI) flow control gate valve  
A gate valve unit is provided for controlling the flow of a fluid through a conduit. The gate valve unit includes a valve body including a conduit connector member or flange. A valve face block...
6575426 Valve system and method  
A valve system and method is disclosed that includes, in one preferred embodiment, a compact valve system that may be configured in many different ways so as to be especially suitable for...
6508387 Gravity flow sludge load-out metering gate  
A gravity flow sludge load-out metering gate comprising a frame having longitudinal and horizontal frame rails and a transverse rail member which defines a gate front portion and a smaller gate...
6464203 Swing-door gate valve  
A gate 3 for opening and closing an opening 2 of a chamber 1 is fixed to a top end of an arm 7 swung between a position facing the opening and a retreating position on the side thereof. A...
6439539 Electrically controllable valve  
An electrically controllable valve comprising at least one input port ( 13 ) and one or more output ports ( 12, 14 ), at least one sealing means ( 17, 18 ) being arranged to control the flow of a...
6398184 Lock device and lock method for knife gate valves  
The present invention provides a device and method for locking a knife gate valve in a position, such as an open and/or closed position. The locking device has a pair of first posts disposed...
6357721 Valve arrangement  
Valve arrangement, in particular as pulse width modulated expansion valve of a refrigeration system, comprising the following elements: a valve body ( 1 ) with a passage opening ( 5 ), an armature...
6354568 Sliding plate valve  
A plate valve which includes two sliding plates and which carries seal portions with an elongated slot. A valve body of the plate valve includes a second elongated slot with further seal portions...
Matches 1 - 50 out of 299 1 2 3 4 5 6 >