| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 277553000 | Bias feature other than nominal garter spring | 26 |
| 20090108538 | Two-Component Seal With Integral Locking Feature To Prevent Relative Rotation - A rotary seal is provided. The rotary seal includes an annular seal element having a sealing surface. The seal element further includes a surface opposite of the sealing surface including a first coupling portion. The rotary seal also includes an annular energizer including a second coupling portion complementary to the first coupling portion. The first and second coupling portions engage so as to inhibit relative rotation between the seal element and the energizer. | 04-30-2009 |
| 20090108539 | Annular Sealing Assembly, in Particular for Wheel Hubs - A sealing assembly ( | 04-30-2009 |
| 20090166983 | SEAL DEVICE - [PROBLEMS] A seal device where a seal lip reliably maintains shaft sealing relative to high-pressure fluid that is to be scaled and where the equivalent Mises stress occurring in the seal lip is reduced to extend the durable term of the seal lip longer. | 07-02-2009 |
| 20090230630 | Lip type seal - To provide such a resin lip type seal ( | 09-17-2009 |
| 20100102517 | SEALING SYSTEM FOR MEDICAL/DENTAL HANDPIECES - A system for enhanced sealing against intrusion of moisture and other contaminants for medical/dental handpieces having rotating or other moving elements driven by a motor within the handpiece. The enhanced sealing includes tandem seals on stepped diameters to provide additional flow pathway impediments. The tandem seals preferably include spring seals that are positioned in opposite directions to provide enhanced sealing against pressures in two different directions that occur during the pressurization and vacuum cycles of an autoclaving process. Additional enhancements include the use of annular sealing rings with x-shaped cross sections. | 04-29-2010 |
| 20120187637 | SEALING RING AND ARRANGEMENT HAVING A SEALING RING - The invention relates to a sealing ring ( | 07-26-2012 |
| 20130307222 | Seal for Sealing Shafts - In a seal ( | 11-21-2013 |
| 20150054226 | Shaft Seal and Method for Producing a Shaft Seal - A shaft seal includes a radially outward flange area and a radially inward sealing lip connected to the flange area. An annular spring with a U-shaped or V-shaped cross section is arranged on a radial outer face of the sealing lip, wherein an outer limb bears on the flange area and an inner limb bears on the sealing lip, and wherein a surface of the spring exposed to an exterior of the shaft seal is coated with an elastomer. The invention also relates to a method for producing a shaft seal. | 02-26-2015 |
| 20150369371 | FLEXIBLE SEALS FOR PROCESS CONTROL VALVES - Flexible seals for process control valves are disclosed. An example disclosed seal includes a seal for use with a butterfly valve. The example seal includes a substantially flexible ring-shaped carrier configured to be moveably fixed within the butterfly valve and to surround a flow control aperture therein. The example seal includes a seal stiffener adjacent the substantially flexible ring-shaped carrier to increase the stiffness of the substantially flexible ring-shaped carrier in a first flow direction. The example seal includes a substantially rigid seal ring to engage an opposing surface. | 12-24-2015 |
| 20160123470 | SEAL ASSEMBLY - A seal assembly for sealing a space between a first component and a second component includes a seal base body disposed on the first component and having at least first and second seal lips configured to run on a running surface of the second component with the seal lips contacting the second component at first and second axially spaced locations, the seal base body including an annular channel having an opening facing in the axial direction, and at least one cylinder comprising a bimetallic shape-change element, the cylinder having a first end in the annular channel of the seal base body and a second end outside the annular channel, at least a portion of the cylinder being located axially between the first seal lip and the second seal lip and radially inward or outward from the second seal lip. | 05-05-2016 |
| 20160153561 | RADIAL SHAFT SEAL | 06-02-2016 |
| 277554000 | Embedded spring | 3 |
| 20100102518 | TEMPERATURE ADAPTIVE DYNAMIC SHAFT SEAL ASSEMBLY - A seal assembly configured for sealing a dynamic shaft includes an elastic seal member disposable in sealing communication with the dynamic shaft. The seal assembly further includes a coil spring and a shape memory alloy element. The coil spring is disposed in contact with the elastic seal member and configured for applying a compressive force to the elastic seal member. The shape memory alloy element is configured for applying pressure to the coil spring to thereby augment the compressive force. | 04-29-2010 |
| 20120235361 | Sealing Device - [Object] To provide a sealing device, which is capable of keeping a higher sealability even when a fluid pressure is not applied and even just after starting of application of the fluid pressure, and which is capable of reducing a sliding resistance while keeping a sealability during operation where the fluid pressure is always applied thereto. | 09-20-2012 |
| 20130043661 | RECIPROCATING SEAL FOR HIGH PULSATING PRESSURE - Device, system, and method are described directed to seal assemblies with support to reduce seal extrusion under high to very high pressure changes due to repeated piston reciprocating movement. In some examples, concave features are incorporated on the inner and outer edges of support and backup ring elements to support and hug the preceding element and constrain extrusion, as well as utilizing multiple contact points on certain elements in order to reduce friction against the dynamic surface. The seal assemblies described herein can also incorporate bearing surfaces to reduce damage to seal ID due to off-axis floating rod, such as incorporating one or more multi-point contacts to reduce friction. | 02-21-2013 |
| 277556000 | Material other than metal | 3 |
| 20080309024 | Sealing Element for a Shaft and Vehicle Component - A sealing element for a shaft, in particular a crank shaft of an internal combustion engine, with a sealing lip made of a polymer material, which in operation is arranged on said shaft to be funnel-shaped towards the sealed space, and which comprises, in a section in contact with said shaft, a conveying structure to return leaking medium back into the sealed space, wherein said sealing lip comprises, on the opposite side, at least one structure running substantially in the axial-radial direction which leads to the formation of a leakage channel in case said sealing lip is turned inside out towards the atmosphere side. | 12-18-2008 |
| 20100084824 | Oil seal for reciprocation motion - An oil seal for reciprocation motion including a seal main body, a resin backup ring, and a holding member. The seal main body includes a seal lip that can be in sliding contact with a reciprocating shaft. The backup ring is disposed such as to support the seal lip from the atmosphere side to ensure durability of the seal lip. In the backup ring, at least a single annular groove is provided on the inner peripheral surface opposing the reciprocating shaft. The annular groove can hold a lubricating material. The holding member holds the backup ring between the holding member and the seal main body in a sandwiched-state. The inner peripheral surface of the backup ring forms a taper that increases in diameter from a sealed side towards an atmosphere side in the axial direction. | 04-08-2010 |
| 20130193649 | Shaft Seal, Especially Radial Shaft Seal - A shaft seal that is preferably a radial shaft seal has a sealing element of polyfluorocarbon that is provided with a sealing lip. The sealing element contacts a surface to be sealed under a radial force action acting in a radial direction of the shaft seal. An elastomer element is provided that is acting on the sealing lip and loads the sealing lip in a direction toward the surface to be sealed. The elastomer element supports the sealing element. The sealing element is resting flat on a face of the elastomer element, wherein the face is facing away from a medium side of the shaft seal. | 08-01-2013 |
| 277558000 | Particular fluid pressure responsive bias | 9 |
| 20090302548 | Sequentially-Deployable Lip Seal Systems - Apparatus to enhance performance of sequentially-deployable lip seal assemblies. In certain embodiments, biasing members to ensure deployment of sequentially deployable lip seals include an o-ring mounted within a cartridge or housing of one or more yet-to-be-deployed lip seals, with the o-ring disposed immediately adjacent one of the lip seals. When a barrier member or deployment sleeve is interposed between the one or more yet-to-be-deployed lip seals and a shaft, such as a rotating and/or reciprocating shaft of a stuffing box, the o-ring biases the lip seal toward the outside diameter of the shaft. Upon movement of the barrier member or deployment sleeve to a position exposing the Hp seal to the shaft, the o-ring urges the lip seal into engagement with the outside diameter of the shaft. A pressurized fluid may be employed between the housing and the o-rings. Flush paths, multi-part housings, and baffle-type housings are also disclosed. | 12-10-2009 |
| 20100013167 | Sealing Arrangement - A sealing arrangement for the sealed leadthrough of rotating shafts ( | 01-21-2010 |
| 20100148450 | SEAL - The invention pertains to a seal with at least one sealing lip that can be pressed against a surface to be sealed of a machine element to be sealed in the radial direction by means of an annular power transmission element. The power transmission element has an effective diameter that can be varied on both sides in the radial direction with the aid of an adjusting mechanism. | 06-17-2010 |
| 20100156051 | DUST SEAL STRUCTURE OF INTERNAL MIXER - A dust seal structure of an internal mixer including a casing having a mixing chamber defined therein, and a rotor rotating in the mixing chamber for kneading a material, which is charged into the mixing chamber to be kneaded there, comprises a ring-shaped cylinder fitted to a rotor shaft of the rotor and mounted on a peripheral edge of an opening portion of the casing through which the rotor shaft passes, the cylinder being located at the peripheral edge of the opening portion of the casing, and being adapted to urge a ring-shaped sealing member fitted on the rotor shaft in a direction of the rotor shaft to inhibit leakage of the kneading material from the mixing chamber. | 06-24-2010 |
| 20120217707 | OIL SEAL - An oil seal ( | 08-30-2012 |
| 20120292858 | Rotary seal arrangement - A rotary seal arrangement has a rotatably mounted machine part and a machine part that forms a bearing for the rotatably mounted machine part. One of the machine parts forms a seal accommodating structure and the other one of the machine parts has a surface forming a sealing surface. At least one rotary seal is arranged in the seal accommodating structure. The rotary seal seals off a high-pressure area from a low-pressure area between the machine parts. | 11-22-2012 |
| 20120306160 | RADIAL SHAFT SEAL - A radial shaft seal is provided for sealing between high and low pressure sides in an annular space between a shaft and a static structural receiving part, wherein the shaft seal is rotationally symmetric and arranged coaxially to the shaft. A first sealing ring has an inner periphery bulging toward the low pressure side and forms a first sealing lip abutting the shaft. A spacer ring has first and second faces directed towards the high and low pressure sides, respectively. An elastic shaped part has an outer periphery abutting the second face of the spacer ring and an inner periphery bulging toward the high pressure side and abutting the first sealing lip. At least the spacer ring and elastic shaped part define a cavity subjected to the high pressure side or a control pressure which presses the first sealing lip against the shaft via the elastic shaped part. | 12-06-2012 |
| 20130334775 | Sealing Device - An annular sealing device for a shaft and housing that can maintain sealing properties under fluid pressure load when creep occurs in a cut portion due to thermal expansion and the perimeter is shortened. The sealing device includes a seal ring unit configured to fit within an annular groove in the shaft, and has, on the side thereof where the outer periphery is located, a sliding surface on which the seal ring unit slides on the housing; and a lip portion on the inner periphery of the seal ring. The lip portion of tip is disposed on the side of the annular groove where a groove bottom thereof is located, in such a way that the tip thereof is deformable in a direction in which the tip increases the distance between the seal ring unit and the groove bottom of the annular groove when under pressure. | 12-19-2013 |
| 20160123469 | HIGH PRESSURE SEAL ASSEMBLY FOR A MOVEABLE SHAFT - A high pressure seal assembly includes a seal element that moves in response to an increase in pressure. | 05-05-2016 |
