| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 277390000 | Particular secondary mounting seal or driving connection | 19 |
| 20080237995 | Mechanical Seal with Superior Thermal Performance - A stationary mating ring for a mechanical seal is provided, comprising an annular body having a central axis and a sealing face; a first circumferential groove formed into the body behind the sealing face; and a first annular fin extending radially from the central axis. The mating ring further may include a second circumferential groove formed in the body adjacent to the first circumferential groove, wherein the second circumferential groove defines a second annular fin extending radially from the central axis. Optionally, the first or second annular fins each include a plurality of subdivided fins extending radially from the central axis, and such fins are symmetrically spaced around the central axis. Also provided is a complete mechanical seal, comprising a rotating ring having a sliding interface against a mating ring constructed in accordance with the aforementioned features. | 10-02-2008 |
| 20090267305 | LUBRICATION BLOCKING SEAL - A lubrication blocking seal includes a hollow body that has upper and lower planar surfaces, a surrounding wall, a reservoir area and an open top. The body has upper and lower seal-receiving recesses located in the upper and lower planar surfaces, and a lower central aperture sized and shaped to fit closely about a rotating shaft. A cover is sized and shaped to seal to the hollow body and has an upper central aperture sized and shaped to fit closely about the rotating shaft and means for mounting a bearing about the shaft and to the cover. A lower seal is sized and shaped to fit closely about the rotating shaft and into the lower seal-receiving recess. An upper seal is sized and shaped to fit closely about the rotating shaft and into the upper seal-receiving recess. A quantity of lubricating material sufficient to fill the reservoir area is provided. | 10-29-2009 |
| 20100264600 | Pneumatic mechanical seal - A mechanical seal device that creates a positive seal between a shaft and machine while allowing a cylinder to move its full motion and at the same time allowing movement in additional directions to maintain a seal due to operational movement or wear of the machine. The subject seal secures a housing/shaft area of a low or non-pressurized unit containing solid media where the shaft penetrates the machine housing and does not rotate but moves in multiple directions during normal operation. | 10-21-2010 |
| 20120161399 | SEAL ASSEMBLY - A seal assembly for sealing between a first member and a second member of a joint, the first member being able to pivot about an axis of the joint relative to the second member, is disclosed. The seal assembly includes a first ring, a load ring, a first seal ring, and a resilient second seal ring. The first ring is for a first seal cavity of the first member. The load ring is for a second seal cavity of the second member. The first seal ring may be of a metal having a sealing surface extending in a radial direction. The resilient second seal ring may have an annular seal lip. The first seal ring is held stationary by the first ring in the first seal cavity of the first member, and the second seal ring is forced axially by the load ring into axial sealing engagement with the first seal ring. A track joint may include such a seal assembly and a vehicle may include such a seal assembly. The first seal ring may be integral with a thrust ring. | 06-28-2012 |
| 20120248705 | MECHANICAL SEAL DEVICE - The object of the present invention is to provide a divisional type mechanical seal of outside type which joins the seal face in flat and strongly even in a seal ring having a different thickness in the radial direction, and to exhibit an appropriate sealing ability. In the mechanical seal device of the present invention, the circumference grooves | 10-04-2012 |
| 20140265143 | MECHANICAL SEAL SUPPORT SYSTEM - A mechanical seal support system includes a pre-pressurized bladder accumulator containing a barrier fluid and a gas under pressure. A cooling circuit includes a mechanical seal for feeding the barrier fluid from the accumulator to the cooling circuit with a pressure regulating device located between the accumulator and the cooling device. A device, responsive to the pressure in the cooling circuit, for indicating when an actual pressure is below a predetermined pressure level is included. | 09-18-2014 |
| 20150123349 | HYGIENIC SEAL SYSTEM - A modular mechanical seal assembly for use in hygienic and aseptic application having few, if any, cavities in which bacteria and pathogens could grow, includes a longitudinally floating first seal face member, a longitudinally static second seal face member, a biasing device for urging the first seal face member to contact with the second seal face member, a longitudinally static shaft location member, a first sealing member and a second sealing member. The second sealing member is formed as an elastomeric member positioned between the static seal face and the equipment housing and the first sealing member is formed as an elastomeric member and positioned between an item of rotating equipment and the shaft location member, in which the elastomeric members substantially seal off at least one cavity of the seal assembly. | 05-07-2015 |
| 20160116070 | MECHANICAL SEAL HAVING A PRECISELY POSITIONED BANDAGE - The invention relates to a mechanical seal arrangement comprising a rotating slide ring (2) and a stationary slide ring (3) which define a sealing gap (4) between them and a bandage (15) which is arranged on the outer surface of at least one of the slide rings, the slide ring (2) on which the bandage (15) is arranged comprising a step (25), which extends completely on the outer circumferential face in the circumferential direction and has a contact face (26), and an end face (17) of the bandage (15) lying against the contact face (26) of the step (25). | 04-28-2016 |
| 277391000 | Flexible sleeve, boot, or diaphragm | 6 |
| 20090058012 | SEAL FOR A ROTATING LASER TRANSMITTER - A laser transmitter, includes a transmitter case defining an opening therein, and a laser generating unit extending from said opening in said transmitter case. The laser generating unit has a non-rotatable portion and a rotatable laser head. The rotatable laser head is rotatable around a rotation axis. A flexible bellows seal surrounds the laser generating unit in said opening. The flexible bellows seal extending from the edge of the opening to the non-rotatable portion of the laser generating unit and defines a plurality of annular pleats. The pleats are spaced generally in the direction of the rotation axis of said rotatable laser head. This transmitter seals out dirt and water and eliminates the opportunity for dirt and water to collect on the seal. | 03-05-2009 |
| 20090085300 | Mechanical Seal Device - A mechanical seal having a seal cover capable of being installed on the outer surface around the circumferential surface of a hole of a seal housing and having an inner circumferential surface surrounding a shaft; a bellows having a first installation portion and a second installation portion, the first installation portion being formed by sealingly fitting the inner circumferential surface of the seal cover to one end circumferential surface of the bellows, the seconds installation portion being at the other end circumferential surface of the bellows, the first installation portion and the second installation portion forming a tubular portion between the portions, the tubular portion being formed as an elastic means surrounding the shaft; a stationary sealing ring sealingly installed on the circumferential surface of the second installation/portion and having an annular sealing surface pressed by the elastic means of the bellows; a rotating sealing ring having an annular relative sealing surface facing the sealing surface of the stationary sealing ring and slidably in intimate contact with the sealing surface of the stationary sealing ring, and a seal collar sealingly fitted and joined in the rotating sealing ring and also sealingly fitted on the shaft. | 04-02-2009 |
| 20120013076 | BELLOWS TYPE MECHANICAL SEAL - A bellows type mechanical seal is provided that is capable of reducing adverse effects on the bellows. The bellows type mechanical seal includes a first annular member fixed on a rotary shaft, a second annular member resiliently supported by the bellows in a housing axially to the outside of the first annular member, a seal ring having a first end seal face contacting the first annular member and a second end seal face contacting the second annular member, both seal faces being perpendicular to the shaft. A centering member is arranged contacting the inner surface of the seal ring and the inner surface of the second annular member within an annular space formed between both of the inner surfaces and the shaft to keep the sealing ring and the second annular member in alignment with each other. | 01-19-2012 |
| 20120013077 | BELLOWS TYPE MECHANICAL SEAL - A bellows type mechanical seal including a sealing ring and a mating ring, wherein either one of the sealing ring or the mating ring is retained in a housing and the other one is mounted on a shaft and wherein the sealing ring is supported by a bellows and the bellows has a retainer welded thereto on one of the sides for retaining the sealing ring and a collar welded on the other side to form a bellows assembly, is characterized in that the entire surface of the bellows assembly is covered by an erosion-resistant film formed by the physical vapor deposition, such as ion-plating. | 01-19-2012 |
| 277392000 | Between sealing face member and shaft or part relating to shaft | 2 |
| 20090289419 | BOOT FOR A CONSTANT VELOCITY JOINT - A constant velocity joint assembly includes an outer joint member and an inner joint member. A first shaft is coupled to the inner joint member for articulated movement with the inner joint member relative to the outer joint member. A boot is coupled to the first shaft and the outer joint member to seal the constant velocity joint assembly. An insert is secured to and supported within the boot adjacent to and in abutting engagement with an axial end of the outer joint member. The insert limits movement of the first shaft to within a pre-determined range of articulation to prevent disengagement and/or disassembly of the inner joint member relative to the outer joint member. | 11-26-2009 |
| 20100123289 | TRIPOD SEAL FEATURE - An adapter for sealing an outer joint portion of a joint assembly is provided. The adapter includes a main body having an aperture for receiving an outer joint portion, the aperture including an inner sealing surface. The inner sealing surface has a plurality of track portions and a plurality and root portions, where each root portion includes a root midpoint and two track connecting points. The track connecting points connect the root portion to the track portion. The root portion includes a first root radius and an offset root radius, where the first root radius is measured from a first center, and the offset root radius is measured from an offset center. The offset center is located closer to the center axis of the adapter than the first center. Each root portion includes the first root radius at the track connecting point, and gradually transitions to the offset root radius. | 05-20-2010 |
| 277394000 | Peripheral radially sealing flexible projection (e.g., lip seal, etc.) | 3 |
| 20100072709 | SEAL WITH PYRAMID SHAPED FORMATION - A seal assembly having a seal bumper wall with a series of pyramid shaped formations lying on the bumper wall. The formations cause their apex portion to wear down rapidly in use, while the remainder of the pyramids remain and act as slingers and/or produce a convection effect to reduce temperature along the sealed area. In another embodiment, there are two each pyramid shaped formations located on each of several thrust bumpers, which are held in position by a retainer. | 03-25-2010 |
| 20140239598 | ROTATING PUMPING APPARATUS WITH SEAL MECHANISM - A rotating pumping apparatus is provided which may be employed in an automotive brake system. The rotating pumping apparatus includes a sealing member and an oil seal which are disposed around a pump drive shaft, and lubricating grease disposed between the oil seal and the pump drive shaft. The sealing member is made up of a resinous ring and a rubber cup. The sealing member has formed therein a labyrinthine flow path which extends from the resinous ring to the rubber cup. The labyrinthine flow path is designed to permit fluid to flow therethrough and create the resistance to flow of the lubricating grease to avoid leakage of the grease outside the sealing member. | 08-28-2014 |
| 277395000 | U- or V-shaped cross-sectional profile | 1 |
| 20110272892 | Low breakout friction energized gasket - A mechanical seal typically includes gaskets as secondary seals therein. An improved gasket is provided which has a U cup design wherein the gasket is formed with a first spring-energized groove which opens radially and has a deflectable sealing wall which is deflectable axially, and includes a second spring-energized groove which is canted at an angle relative to the axial and radial directions wherein the groove defines a sealing leg which is deflectable at an angle relative to the axial and radial directions. A support ring supports the canted sealing leg along the major extent thereof wherein an end portion of the canted sealing leg is disposed for sealing contact with an axially-extending component surface. | 11-10-2011 |
| 277396000 | Axially compressed packing | 2 |
| 20150130142 | ROTARY MACHINE SECONDARY SEALING ASSEMBLY AND METHOD OF ASSEMBLING THE SAME - A seal ring assembly for use with a rotary machine that includes an axis of rotation includes a seal housing comprising a secondary sealing surface and a secondary seal assembly coupled to the seal housing. The secondary seal assembly includes a seal ring coupled to the seal housing, wherein the seal ring is configured to form a secondary seal with the secondary sealing surface. The secondary seal assembly also includes at least one protection ring positioned upstream from the seal ring. The secondary seal assembly is configured to be biased along the axis such that biasing the at least one protection ring facilitates removing debris from at least a portion of the secondary sealing surface over which the seal ring travels during biasing. | 05-14-2015 |
| 20150369369 | MECHANICAL SEAL ARRANGEMENT HAVING AN IMPROVED SECONDARY SEAL - The invention refers to a mechanical seal arrangement, comprising: a rotatable seal ring ( | 12-24-2015 |
