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6553639 |
Method of manufacturing seals
A method of manufacturing a leaf seal for use between rotating components comprises forming corrugations within a metallic strip and feeding the corrugated strip into a seal guide. The corrugated...
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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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6390666 |
Packing gland seal assembly as an upstream seal for mixer rotors
In the field of helical bladed rotors, and their sealing assemblies an improved upstream seal for mixer rotors is provided. It includes a bushing-like visco sleeve subassembly, a sleeve shaped...
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6283740 |
Rotary lobe pumps
A rotary lobe pump is provided with an improved sealing mechanism between the rotor and outside diameter of the shaft upon which the rotor is mounted. An adapter is provided for the drive shaft...
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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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5957461 |
Radial lip shaft seal
A unitary radial lip seal assembly to provide a fluid tight seal between a shaft and a housing bore through which the shaft extends includes an annular rigid retainer, a resilient body portion...
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5503942 |
Inorganic skin film
A slide surface construction which is an inorganic skin film formed of an aggregate of Fe crystals having a body-centered cubic structure. The aggregate includes a large number of {222} oriented Fe...
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5048847 |
Stuffing box for sealing large-scale deflection shafts
The invention relates to a stuffing box for the sealed passage of a shaft with undesirable deflection through connecting branch, provided with a casing, a stuffing box sland containing packing...
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4878677 |
Shut off seal about a shaft of a device having a side entry into a tank
A shut off seal in a device having a rotatable shaft extending through a nozzle side entry structure of a tank is provided by means of a slidable stuffing box housing which can be moved by jack...
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4419015 |
Agitator having detachable wear sleeve
An agitator has a shaft carrying a wear sleeve detachable secured thereon and extending through a fixed flange. A detachable stuffing box is secured to a first side of the flange, and an axially...
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4270762 |
Disperser seal and method
A seal for a shaft of a disperser crusher, that pulverizes hot coal particles, maintains a higher than atmospheric pressure within a casing for the crusher, and is able to withstand elevated...
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4087098 |
Seal for repair of a shaft or the like and a method for doing same
A seal device adapted to be disposed between two surfaces, usually a shaft surface and a mechanical seal and a method for repair of a shaft and the like, wherein the shaft is formed having a...
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3918724 |
Seal for repair of a shaft or the like
A seal formed of a fluoroethylene polymer or like sealing material which is adapted to be disposed between two surfaces, usually a shaft surface and a mechanical seal, for sealing therewith and...
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3608912 |
SEALING MEANS FOR VALVE STEMS
A seal is formed between a liner sleeve, which surrounds part of a valve stem, and a body through which the valve stem extends, the seal comprising a plurality of O-rings with annular spacers...
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3185437 |
Non-corrosive valve
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3062556 |
Sleeve and seal construction
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2881710 |
Shaft seal with replaceable sleeve
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2853321 |
Stuffing box seal with an auxiliary static seal
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