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6488263 |
Valve stem and method of manufacture; improved stem packing
A valve stem has a thickness of hardfaced material on its outer diameter in the area contacting the stem packing where the seal is formed which prevents corrosion, erosion and/or scratching of the...
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6250604 |
Valve stem and method of manufacturing, improved stem packing
A valve stem has a thickness of hardfaced material on its outer diameter in the area contacting the stem packing where the seal is formed which prevents corrosion, erosion and/or scratching of the...
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5464035 |
Gate-type, side-ported, line blind valve
A walled body, has apertures formed in front and rear walls thereof in which resilient seats are set. The latter sealingly engage a plate-type gate, centrally apertured for alignment with the...
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5074526 |
In-line fluid flow control valve with apparatus for and method of installation in an existing fluid conduit
The present invention provides an in-line fluid flow control valve adapted and designed for installation in an existing fluid line carrying fluid under pressure, without the necessity of...
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4964432 |
Method and means for mounting valve member on valve stem
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...
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4836238 |
Unitary valve filter combustion
A easily manufactured unitary valve and filter assembly of compact design allows replacement of the installed particulate filter without requiring difficult dissasembly. A cylindrical mesh filter...
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4765361 |
Ported gate valve
A gate valve formed with spaced parallel housing plates having axially aligned apertures which constitute a housing therebetween. Elastomeric sleeves line the apertures of the housing plates to...
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4729400 |
Liquid control assembly
A liquid control assembly for controlling the flow of a liquid into a reservoir. A float means for shutting off the flow of liquid when the reservoir is full is provided. Also, a means for...
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4709901 |
Fluid power operated sliding gate valve system for tank trucks, pipelines, storage tanks and the like
A remotely controllable fluid pressure actuated mechanism for controlling the actuation of a sliding gate valve or the like, for use with tank trucks, pipelines, storage tanks or the like, for...
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4610430 |
Self cleaning valve for powdery, granular and pasty products
The technical field of the invention is that of guillotine type valves for powdery, granular or pasty products.The technical problem posed consists in improving the valve disclosed in U.S. Pat. No....
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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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4541453 |
High temperature slide valve
A slide valve for use in a high temperature gas line is described. The valve is constructed to allow field assembly and disassembly for ease of service, and has insulating means and gas purge means...
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4491145 |
Toggle gate valve
A toggle gate valve having a double block and bleed retractable sealing configuration which utilizes accurately positioned steel inserts as trim assembly guide plates to permit a significant...
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4456026 |
Control device particularly useful as manual slide valve
A manual slide valve comprises a housing having a valve slide slidable within the housing. The housing is constituted of two sections each including projections and recesses cooperable with each...
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4408627 |
Exhaust brake valve unit
The invention provides an automatic exhaust brake valve unit having a hollow body with an exhaust gas passage extending therethrough and a valve closure member movable in the hollow body between a...
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4316483 |
Valve having wear-prone parts removable through bonnet area
A valve is disclosed in which the wear-prone parts comprised of the valve, guides and valve seat are readily and easily removed through the bonnet area. The guides are maintained in position in the...
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3958592 |
Safety shut-off valve
Pressurized fluid is controlled by a reverse valve gate on a valve stem that extends through annular packing in a bore of a bonnet to a piston in an outer control chamber. Control fluid pressure...
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3906992 |
Sealed, easily cleanable gate valve
A gate valve including quickly, easily replaceable seals to prevent material from building up between the gate plate and its slideway and jamming the plate against movement. The seals are held...
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3249117 |
Gate valve
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3164163 |
Valve construction
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3111137 |
Gate valve
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3064674 |
Gate valve
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