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| Number | Title | Issue Date |
| 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 strip is then pressed into the guide by an angled ram such ... | 04/29/2003 |
| 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 valve stem, thereby preventing formation of leak paths. A ... | 12/03/2002 |
| 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 metallic liner positioned abutting the visco sleeve; a sleeve-... | 05/21/2002 |
| 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 which enables the drive shaft to be easily coupled to a varie... | 09/04/2001 |
| 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 valve stem, thereby preventing formation of leak paths. A ... | 06/26/2001 |
| 6247679 | 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 valve stem, thereby preventing formation of leak paths. A ... | 06/19/2001 |
| 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 secured to the retainer and defining at least one sealing lip ... | 09/28/1999 |
| 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 crystals with their {222} planes (by Miller indices) orie... | 04/02/1996 |
| 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 rings, as well as with a tubular spring compensator, one end o... | 09/17/1991 |
| 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 screws into engagement with a sealing collar fastened to the ... | 11/07/1989 |
| 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 operable element of a valve is secured to the shaft on the o... | 12/06/1983 |
| 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 temperatures that are produced within the casing. The pressure a... | 06/02/1981 |
| 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 longitudinal taper for receiving a seal to be snugly fitted ther... | 05/02/1978 |
