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7543797 |
Valve device
A valve device is provided. The valve device of the present invention includes a planetary component and two valve plates. The two valve plates are disposed on a hole portion of the planetary...
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7270311 |
Pendulum gate valve
A pendulum gate valve includes a housing defining a valve chamber, the valve housing having a vacuum-chamber opening in a front wall and an access opening in a rear wall aligned with the...
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7032882 |
Valve assembly having novel flow characteristics
A valve assembly including a housing having a flow channel and an annular surface surrounding the flow channel, a slide plate movable to a closed position, and a seal ring positioned between the...
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6974122 |
Gates for throttle valves
Gate for throttle valves composed of a central supporting portion constituted by a thermoplastic material and an edge portion constituted by a thermoplastic elastomeric material belonging to the...
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6966538 |
Gate valve
A gate valve has a valve rod equipped with a valve plate having a pair of valve plate surfaces, wherein the valve rod is tilted by an actuator to thereby effect highly reliable valve...
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6691981 |
Gate valve
A gate valve ( 2 ) comprising valve body ( 4, 6 ) and a gate element ( 8 ) movable to selectively interrupt a flow passage through the valve body ( 4, 6 ). The gate element ( 8 ) is supported for...
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6601824 |
Single shaft, dual cradle vacuum slot valve
A single slot valve shaft is in a vacuum body between adjacent vacuum chambers, such as a process module and a transport module. Separate valves are provided on the single shaft actuator for each...
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6325356 |
Long life rotary gate valve for aircraft vacuum toilet system
A light weight gate valve and method for a aircraft vacuum toilet system. The valve resists jamming due to scale buildup, thereby reducing maintenance costs associated with repair or cleaning. The...
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6260490 |
Burner isolation valve for pulverized fuel systems
A burner isolation valve or gate for use in the coal-delivery pipes of coal-fired power plants. Safety regulations often require that two valves be placed in the coal delivery line between a...
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6032921 |
Engine shutdown valve
An engine shutdown valve comprises a housing and a gate movable within a housing between a first position where the air flow through the shutdown valve is substantially unrestricted to a second...
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5899438 |
Gate valve having a swingable-slidable valve plate
A gate valve has a manual actuator that includes a crank having a direct pivotal connection with a slidable valve plate. The valve plate has a teardrop configuration that enables the valve plate to...
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5836336 |
Cut-off diaphragm gate valve
A cut-off diaphragm gate valve has two members (1) of the shape of a quadrangle located opposite to each other as in mirror reflection. Passage openings (4) are disposed in the four corners of each...
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5797423 |
Device for cutting off a flow in a conduit for fluide
A device for cutting off the flow in a conduit for fluids, consisting of a sluice (2), transversely arranged in a conventional conduit for fluids (1) between two flanges (3), one or two flanges (3)...
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5618027 |
Gate valve
A valve comprising a gate closure member which is actuated by a stem that is operatively connected with the valve operator handle at the upper end of the stem and the lower end of the stem...
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5464310 |
Conveyor conduit for bulk material to be pneumatically conveyed
In a conveyor conduit comprising at least one valve having a movable closure body, for loose material which is to be pneumatically conveyed, the closure body of the valve is permeable to the...
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5203536 |
Compact engine shutdown valve
An engine shutdown valve comprises a housing and a gate movable within a housing between a first position where the air flow through the shutdown valve is substantially unrestricted to a second...
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5088422 |
Rotary isolation door
A rotary isolation door for use in a conduit extending between an auger feeder and an incinerator which opens to allow the auger feeder to convey material to the incinerator and closes to prevent...
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4679768 |
Valve
A valve for connection in a pipeline or duct for the conveyance of a fluent medium includes a valve plate which is movable laterally relative to the duct between respective open and closed...
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4587989 |
Turn disc slide valve
A turn disc valve (10) includes a rigid, sealed, valve body having first and second, parallel, generally coextensive side-wall rigid plates (20 and 22) with a spacing wall (24) sealed between them...
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4585023 |
Packing-resistant valve
A packing resistant valve has a gate rotatably mounted within an angled valve body and an inlet face of the gate defines a concave recess for inducing eddy currents in fluid flow impinging thereon....
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4546954 |
Engine air cut-off valve
The valve comprises a two-piece housing consisting of a body and a flat cover. The body is milled out to define a working chamber. A port extends through the body wall to communicate with the...
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4543981 |
Sliding gate valves
In order to resist alteration of the spring forces utilized for applying seal pressure between the valve bodies in sliding gate valves for molten metal pouring, particularly those of the manually...
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4432387 |
Rotating disc gate valve
A rotating disc gate valve for controlling fluid flow in a flow line comprising a valve body having a flow passageway and a cavity transverse to the flow passageway to receive a flow control...
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4381100 |
Valve and valving apparatus
A gate valve having an expandable valve closure apparatus which is capable of expanding to seal two oppositely located parts in its valve housing. The expandable valve closure apparatus if...
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4328947 |
Pendulum gate valve
A pendulum gate valve with a pressure tight housing and inlet and outlet openings arranged on opposite sides of the housing. The drive rod for the pendulum frame is guided throughout its total path...
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4063556 |
Vacuum curettage device
A vacuum device for performing medical procedures such as a curettage, or the like. The device includes basically an evacuated vessel, a cannula or some other form of medical implement, and a valve...
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3924832 |
In-line control valve
An orifice control valve for interposition in end-to-end aligned pipe lines having a manually rotatable peripheral control ring positioned about two identical aligned connectors, with the control...
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3861473 |
TEMPERATURE RESPONSIVE ON-OFF FLUID CONTROL DEVICE AND A CONTROL ASSEMBLY AND FIRE PROTECTION SYSTEM INCORPORATING SAID DEVICE
An on-off fluid control device in which a body member has a passage extending therethrough between an inlet adapted for connection to a source of fluid under pressure and an outlet adapted to be...
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3842861 |
DOUBLE DISC SEAL VALVE
A double disc seal valve provided with two independently operable disc valves, a double bellows pressure sealing system sealing each disc valve protected from the erosive action of solids or...
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3837356 |
HIGH TEMPERATURE VALVE
There is provided in accordance with one embodiment of the invention a valve for use under high temperature conditions including a linearly slidable valve member made of silicon carbide and having...
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3802510 |
AUTOMATIC FIRE SPRINKLER HEAD
Disclosed is a temperature controlled valve assembly for use in automatic fire extinguishing systems. The valve automatically and repeatably opens in response to heat generated by a fire and closes...
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3788346 |
FLANGELESS VALVE
The application for patent discloses a quick opening valve which provides a seat under sealing pressure which is exerted by an elastic material disposed between the valve body and the seal. The...
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3659822 |
NON-SEIZING SLIDE VALVES
A non-seizing slide valve is disclosed including a valve body having first and second halves between which a lever actuated valve plate is pivoted for sliding between open and closed positions....
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3595524 |
SPRAY STRUCTURE
A two part spray structure or valve intended to be used in watering plants is disclosed. One of the parts of the valve includes a member of uniform cross-sectional configuration having a groove...
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3512751 |
SHEARING VALVE ASSEMBLY
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3424200 |
NON-CAVITATING DISC VALVE
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3325141 |
Full flow valve
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3286980 |
Fluid-flow control valves
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3279494 |
Magnetic gate valve
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3255772 |
Rotary slide gate valve
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3249117 |
Gate valve
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3232578 |
Pivoted disc valve having a particular mounting arrangement
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3203664 |
Pivoted gate valve
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3198482 |
Sliding gate valve sector-type storage tank closure
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3071340 |
Magnetic switch valve
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2986367 |
Valve
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2973180 |
Valve
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2965353 |
Pipe blind, more particularly for hydrocarbon pipelines
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2952437 |
Sealing gate valve
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2913220 |
Valve structure and method of installation
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