| Patent application number | Description | Published |
|---|
| 20090127792 | MECHANICAL SEAL - A mechanical seal includes an elastomeric member, a spring biasing device, a longitudinally floating first member, a longitudinally non-floating second member and a longitudinally floating seal face. The elastomeric member is in a sealing engagement with the seal face. The first and second members and the spring biasing device are longitudinally positioned between the seal face and the second member. The first member and the second member are longitudinally restrained and rotationally coupled by at least one substantially male radially protruding portion in one of the members engaging in at least one substantially female portion in the other member of the two members. The first and second members are arranged for a sealing engagement with the seal face in a single seal utilizing the elastomeric member, or with the seal face and an additional seal face in a double seal utilizing an additional elastomeric member. | 05-21-2009 |
| 20090140494 | Flow Inducing Ring For a Mechanical Seal - A flow inducing ring for a mechanical seal includes a body portion having a first edge face and a second edge face, and at least one first groove extending both axially and circumferentially in one direction across the body portion from the first edge face to the second edge face. At least one second groove extends both axially and circumferentially in an opposite direction across the body portion from the first edge face to the second edge face. Each of the first groove and the second groove includes an entry portion, configured to draw a barrier fluid into the groove from the first edge face, and an exit portion, that is configured to expel barrier fluid from the groove to the second edge face and to impede the drawing of barrier fluid into the groove from the second edge face. | 06-04-2009 |
| 20100123055 | SEAL SUPPORT SYSTEM - A seal support system for a device for sealing an item of rotating equipment, including a device for generating air movement, includes a vessel for holding fluid for supplying to the sealing device. The system further includes an adjustable stand on which the vessel is mounted and a device for deflecting air along a path into which the vessel can be positioned. | 05-20-2010 |
| 20100181730 | BEARING SEAL - A non-contacting sealing device for a bearing includes a labyrinth seal with a static shut-off device. The non-contacting sealing, or isolator, device includes stator, a rotor and the static shut-office device, which includes at least one deformable toroidal member adjacent to the stator surface and adjacent to the rotor surface. The deformable toroidal member engages both the stator surface and the rotor surface when the rotor is static and disengages at least one of the stator surface and the rotor surface when the rotor is operational. The seal may be an integral part of the bearing, or a substantially attachable member to a bearing. | 07-22-2010 |
| 20100187764 | SEAL CAVITY PROTECTION - A seal cavity throat bushing, for use with rotating fluid equipment having a seal cavity, is defined by a rotary shaft having an axis. The shaft housing surrounds at least a portion of the shaft and a sealing device engages the shaft and the housing at one end of the cavity. The bushing includes an annular element, which is adapted for a tight fit in a housing at the entrance to the cavity opposite the one end. The annular element has a radially outer cylindrical surface for contacting a cavity wall of the housing and a radially cylindrical surface having a diameter greater than that of the shaft to define a gap there-between. | 07-29-2010 |
| 20100193295 | BEARING LUBRICATION - A lubrication apparatus for lubricating a surface of at least one component of a piece of equipment, which includes a lubrication mist generating unit in which air and a lubricant are combined to form a lubricant mist. A device is included for directly connecting the lubrication mist generating unit to the equipment at a position adjacent the surface to be lubricated. | 08-05-2010 |
| 20100201075 | ISOLATOR SEALING DEVICE - An isolator sealing device includes a stator, which locates into a housing of a piece of rotating equipment, and a rotor which radially locates onto a rotary shaft of the piece of rotating equipment. The rotor and stator have one or more adjacent surfaces facing a labyrinth seal and a lip seal which sealingly engages the stator or the rotor when the equipment is idle and sealingly disengages the stator or the rotor when the equipment is operational. | 08-12-2010 |
| 20100219585 | ISOLATOR SEAL - An isolator seal includes a stator member for placement into the stator of rotating equipment and a rotor member for placement onto a rotary shaft of the rotating equipment. The stator member and the rotor member provide respective adjacent surfaces, while a static shut-off device engages both adjacent surfaces when the rotor member is static and disengages one or more of the surfaces when the rotor member is dynamic. In one embodiment of the invention at least one of the surfaces is inclined to the longitudinal axis at an angle greater or less than 90°. In a further embodiment, the static shut-off device includes a resilient annular sealing member and an auxiliary member, which can move between a first position, when the rotor member is static, at which the auxiliary member compresses the resilient annular member into engagement with both surfaces, and a second position at which the compression on the resilient member is reduced, so that the resilient annular member disengages one or more of the rotor and stator surfaces when the rotor is dynamic. | 09-02-2010 |
