| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 277399000 |
Particular sealing face member configuration
| 52 |
| 277377000 |
Particular axial biasing feature
| 49 |
| 277361000 |
Multiple sealing faces (e.g., double seals, etc.)
| 35 |
| 277404000 |
Made of particular material
| 20 |
| 277370000 |
Installation, removal, assembly, disassembly, or repair feature
| 19 |
| 277390000 |
Particular secondary mounting seal or driving connection
| 19 |
| 277408000 |
Introduction, circulation, or removal of fluid
| 12 |
| 277359000 |
Temperature responsive feature | 5 |
| 20120248704 | FILM RIDING SEAL FOR TURBINES - An seal is described for a turbine with a first sealing surface mounted on a stationary part of a turbine and a second sealing surface mounted on a rotating part of the turbine, the surfaces being structured such that in operation the thin film of a fluid medium is generated between the two surfaces reducing contact and/or leakage with at least one of the first or second sealing surface mounted such that it is subject to a retracting force which opens the seal while stationary or at slow rotation speeds of the turbine and subject to a force counteracting the retracting force at operational rotation speeds of the turbine. The surface of the sealing face may incorporate patterns straight or helical in nature to help induce the fluid into the gap and maintain the fluid film. | 10-04-2012 |
| 20120326394 | Shaft-Seal Device for High-Temperature Fluid - A shaft-seal device for high-temperature fluid including a seal case ( | 12-27-2012 |
| 20150330512 | MECHANICAL SEALS - A mechanical seal has, at least a portion of, its outmost stationary components provided with a device for indicating the presence or change of the fluid composition, the temperature, or both, of the mechanical seal. | 11-19-2015 |
| 20150377359 | MECHANICAL SEAL CONTROL APPARATUS - A mechanical seal control apparatus includes a thermally responsive element for reducing or negating face contact pressure upon at least one seal face of a mechanical seal when heat is generated within the mechanical seal above a pre-determined temperature. The thermally responsive element preferably includes, or is, a shape-memory material sensitive to thermal changes to increase or decrease in size, or change in shape, when subjected to changes of temperature of the mechanical seal and is, preferably, a bimetal, such as, for example, nitinol. Upon cooling of the mechanical seal, the shape-memory material substantially, or entirety, reverts to its original size or original shape to increase the face contact pressure for retaining the integrity of the mechanical seal. | 12-31-2015 |
| 20180023559 | FLOATING RING TYPE MECHANICAL SEAL | 01-25-2018 |
| Entries |
| Document | Title | Date |
|---|
| 20080237994 | Sealed joint - A sealed joint for joining male and female parts which is tolerant of relative displacement of the parts. Either of the parts may carry a sealing member that sealingly contacts a sealing surface provided on the other part. Either of the parts may carry a support member that is in load communication with a support surface provided on the other part. The sealing member and support member are spaced apart in the direction of relative displacement such that over the range of relative displacement the sealing member remains in contact with the sealing surface and the support member remains in contact with the support surface. | 10-02-2008 |
| 20080303222 | FACE SEAL AND METHOD OF MAKING - A face seal is provided that includes an annular casing having an annular portion, an inner diameter portion extending axially from the annular portion, an outer diameter portion extending axially from the annular portion, and a generally circular opening defined by the contour of an outer surface of the inner diameter portion. The face seal further includes an inner seal member disposed along an inner surface of the inner diameter portion, and an outer seal member disposed along an inner surface of the outer diameter portion. | 12-11-2008 |
| 20090051118 | GASKET PART FOR A PUMP - The invention relates to a gasket part for a pump to be used in conjunction with a bearing part ( | 02-26-2009 |
| 20090166977 | Seal - A seal, comprising a sealing element and an L-shaped support body that has an annular element and a disc-shaped flange, wherein the flange has an end face on the side facing away from the element, and wherein the sealing element is located on the end face. | 07-02-2009 |
| 20100078896 | FACE SEAL BREAK-IN COMPOUND - The present disclosure provides a vehicle assembly, such as a metal face seal, that includes a break-in lubricant compound. The assembly lubricant compound may reduce friction and scoring between contacting surfaces of the assembly, especially during the initial break-in of the assembly. During the initial break-in period, the compound may permit the contacting surfaces of the assembly to seat, or establish a pattern of surface mating, with limited wear and with limited material transfer or scoring. | 04-01-2010 |
| 20100140878 | SLIDING RING - The object of the invention is a sliding ring used in mechanical non-contact face seals. A sliding ring according to the invention is provided with grooves ( | 06-10-2010 |
| 20100237564 | Mechanical Seal - The present invention provides a mechanical seal preventing the deformation of the cartilage and exhibiting a good sealing performance. In said mechanical seal, the deformation of the back portion | 09-23-2010 |
| 20100264597 | SPLIT MECHANICAL SEAL - Provided is a split mechanical seal split along the circumferential direction of the seal, wherein the accuracy of assembling the mechanical seal and the accuracy of the assembling at each split contact surface are enhanced, assembling workability in a site is drastically enhanced by providing each part of the seal with a temporary fitting function, and leakage is eliminated. A split mechanical seal has split ring fitting holes into which split rings having a rectangular cross-section are fitted. The split ring fitting holes are formed over the entire length in the circumferential direction of the seal between split sealing rings and split flanges. The split rings are mounted in the split ring fitting holes with the phases of the split sealing rings and the split flanges shifted from each other such that one end of each split ring projects from a split contact surface. | 10-21-2010 |
| 20100270748 | Retaining Ring for a Seal Ring of a Mechanical Seal Assembly - A retaining ring for a seal ring of a mechanical seal assembly comprises a recess ( | 10-28-2010 |
| 20110101616 | Mechanical Seal Sliding Member, and Mechanical Seal - The present invention provides a mechanical seal sliding member with high lubricating characteristics, in which the coefficient of friction and the temperature of sliding surfaces are lowered and stabilized without excessive leakage. In the mechanical seal sliding member of the present invention, on the sliding surface | 05-05-2011 |
| 20110175297 | MECHANICAL SEAL ASSEMBLY HAVING FILTER MEMBER - The invention relates to a slide ring seal arrangement comprising: a first stationary slide ring ( | 07-21-2011 |
| 20110180999 | CONTAMINANT-SEALING DEVICE - A contaminant-sealing device includes a rotating or reciprocatingly moving seal ring attached to one of two mutually opposed members and slidably placed in intimate contact with the other member. The seal ring has a cross-sectional shape that is quadrilateral and has a taper so that a surface of a sliding part is lower towards a high-pressure side and higher towards a low-pressure side, and is being disposed so that a fluid body on the high-pressure side acts on the tapered part. | 07-28-2011 |
| 20110204574 | SLIDE RING SEAL - A slide ring seal, particularly a running gear seal, comprising at least one slide ring having an angular cross-section, the radial limb of which has a running surface and the axial limb of which is provided to receive an elastomer spring element, wherein the slide ring can be introduced into an associated seal holder in the operating state and the spring element is provided with at least one constriction to form sealing and spring regions, said constriction extending at least over the lengths of the axial and radial limbs, and wherein the sealing and spring region of the spring element provided on the running surface side fits over at least part of the wall thickness of the radial limb. | 08-25-2011 |
| 20110210518 | Low and Reverse Pressure Application Hydrodynamic Pressurizing Seals - The present invention relates to circumferential seal ring segments positioned around a rotating shaft so as to prevent fluids from leaking from a lubricant sump during both low and high pressure conditions. The circumferential seal is comprised of a plurality of adjoining annular ring segments facing the rotating shaft. Each sealing ring segment includes a dead end circumferential groove on a shaft-side face of each sealing ring such that, when the segments are joined, the circumferential dead end groove of each segment extends arcuately in the direction of shaft rotation. Additional grooves are contained on the shaft-side face of each sealing ring segment. The additional grooves direct and create pressurized air within the dead end circumferential groove, either directly or indirectly maintaining a seal between the ring segments and the shaft. The additional grooves are comprised of a first and a second axial bore groove extending perpendicularly to a longitudinal axis of the seal ring segment in fluid communication with the dead end circumferential groove so as to direct fluid flow generated from a rotating shaft into the dead end circumferential groove wherein the first axial bore groove is spaced at one end of the seal segment and the second axial bore groove is approximately centered on the seal segment. A bleed hole may also be provided to create a seal between each sealing segment. | 09-01-2011 |
| 20110221139 | METHOD OF PRODUCING MECHANICAL FACE SEAL AND MECHANICAL FACE SEAL ARRANGEMENT - A mechanical face seal is provided that surrounds a shaft that is to be sealed, the mechanical face seal includes a stationary seal ring wherein the shaft is integral to the mechanical face seal, is configured in one piece, makes a transition to the stationary seal ring and includes the same material as the ring. | 09-15-2011 |
| 20120068417 | Seal And Procedure For Its Production - A seal comprising a sealing ring ( | 03-22-2012 |
| 20120080851 | WELDED BELLOWS SEAL ASSEMBLY - A welded bellows seal assembly is provided. In an embodiment, a welded bellows seal assembly includes a seal ring including a seal ring shell, an outer housing; and a bellows extending from a portion of the seal ring shell to a portion of the outer housing. The seal ring shell may include a bellows segment that extends longitudinally over the bellows. Moreover, in embodiments, the bellows may be connected to the seal ring at a lower inner diameter portion of the seal ring shell. Embodiments of the seal assembly may permit the tuning of the seal assembly to improve resistance physical effects, such as twisting, under anticipated operational conditions. | 04-05-2012 |
| 20120112416 | MECHANICAL SEAL WITH FRICTION MONITORING DEVICE - The invention refers to a mechanical seal, comprising at least one pair of interacting seal rings ( | 05-10-2012 |
| 20120133099 | MECHANICAL SEAL ASSEMBLY WITH COMPENSATION ELEMENT - The invention relates to a mechanical seal assembly for sealing between a high pressure region ( | 05-31-2012 |
| 20120267859 | Seal Assembly for Track Pin Joint Assembly of Undercarriage - A seal assembly can be incorporated into a track pin cartridge assembly of an undercarriage of a track-type machine. The seal assembly can include a pin defining a longitudinal axis and first and second members both coaxial with the pin about the longitudinal axis. The first member is pivotable about the longitudinal axis with respect to the second member and includes a load ring engagement surface defining a seal cavity disposed in proximal relationship to the second member. A seal assembly, including a seal ring and a load ring, is disposed in the seal cavity and sealingly engages the first and second members. A radial segment of a first member engagement surface of the load ring is radially offset, measured along a radial axis perpendicular to the longitudinal axis, from a radial segment of a seal ring engagement surface of the load ring. | 10-25-2012 |
| 20120267860 | PIPE CONNECTING MECHANISM FOR SEAL DEVICE AND MECHANICAL SEAL DEVICE - Disclosed is a completely nonmetallic pipe connection mechanism for a seal device. In the pipe connecting mechanism of the present invention, a metallic reinforcing pipe ( | 10-25-2012 |
| 20130038023 | MECHANICAL FACE SEAL WITH A ROTATING COUNTER RING AND PRECISELY DEFINED CLAMPING - A mechanical face seal includes a rotating counter ring having a sealing surface and two radial planes. Each of the radial planes is associated with a clamping cam. A stationary face seal ring has a sealing surface opposite from the sealing surface of the counter ring. The sealing surfaces. of the counter ring and the face seal ring bear against each other. | 02-14-2013 |
| 20130292909 | Seals - An elastomeric or polymeric seal assembly ( | 11-07-2013 |
| 20140062026 | FACE SEAL RETAINING ASSEMBLY FOR GAS TURBINE ENGINE - A face seal assembly for a gas turbine engine includes an engine static structure. A guide assembly supports a face seal for movement relative to the engine static structure in an axial direction. The guide assembly includes a guide pin having a first end that supports a washer that is retained by a circlip secured to the first end. The circlip is configured to limit movement of the face seal in the axial direction. | 03-06-2014 |
| 20140062027 | Seal - A mechanical face seal including a primary ring which is axially movably mounted, and a mating ring ( | 03-06-2014 |
| 20140091529 | CLAMSHELL SEAL - A seal for a duct having an upstream portion and a downstream portion, the duct upstream portion and the duct downstream portion separated by a first gap, includes a first portion having a length greater than a width of the first gap between the first portion and the second portion, the first portion having a first thickness, a first upstream end and a first downstream end; a second portion having a length greater than a width of the gap between the first portion and the second portion, the second portion having a second thickness, a second upstream end and a second downstream end; and an attachment between the first portion and the second portion such that the first portion and the second portion move relative to each other, wherein the first portion is inside the duct and the second portion is outside of the duct. | 04-03-2014 |
| 20140091530 | MECHANICAL SEAL - An inside-type mechanical seal is mounted between a rotating shaft and a housing, and adapted for preventing leakage of a sealed fluid from an outer circumference of a sliding surface in the direction of an inner circumference thereof, wherein provided are a rotary-side sealing ring mounted on a rotating shaft side, a stationary-side sealing ring mounted on a seal case side, an annular packing for pushing the stationary-side sealing ring toward the rotary-side sealing ring, a holding part on the outer circumferential side being fitted in the seal case, and a seal lip part on the inner circumferential side being in close contact with the stationary-side sealing ring, and wherein provided to the seal case is a ring-shaped projection abutting against a back surface of the packing during assembly of the mechanical seal, and adapted for pushing the packing toward the stationary-side sealing ring. | 04-03-2014 |
| 20140159314 | SLIDING PARTS - A sliding part assembly includes a plurality of circumferentially separated sealed-fluid-accommodating blocks formed on a sealing face of either the stationary ring or the rotating ring so as to communicate with a sealed-fluid-accommodating space. Pumping areas for generating a pumping action due to the stationary and rotating ring sliding in relative rotation are formed on the bottom of the plurality of sealed-fluid-accommodating blocks. The pumping areas formed on the bottom of the plurality of sealed-fluid-accommodating blocks are provided with intake pumping areas operating in a direction so as to draw in the sealed fluid and outflow pumping areas operating in a direction so as to expel the sealed fluid. A seal dam area on the sealing face on which said sealed-fluid-accommodating blocks are formed is formed from a high-lubricity sliding material, the seal dam area being on the opposite side of the sealing face relative to the sealed-fluid side. | 06-12-2014 |
| 20140175753 | SEAL RING WITH FRICTIONAL LOAD SURFACE - A seal ring is disclosed. The seal ring can have one or more exterior surfaces extending between a first outer axial end of the seal ring to a seal flange. The seal flange can be positioned adjacent to a second outer axial end of the seal ring and can extend radially outward to an outer diameter of the seal ring. An outer surface of the seal flange can form an annular sealing band. A seal ramp can extend outwardly from a first end proximate to the first outer axial end of the seal ring to a second end positioned adjacent to the seal flange. The seal ramp can include a first surface configured to form a frictional, sealing contact interface between the first surface and an elastomeric seal compressed into contact with the first surface when the elastomeric seal is in a loaded state. | 06-26-2014 |
| 20140265142 | CARBON SEAL ASSEMBLY - A carbon seal assembly comprises an annular seal runner adapted to be sealingly mounted to a shaft to rotate therewith. An annular member is secured to a structure, the annular member having an annular body and a projection extending from the body toward the seal runner in an axial direction relative to an axis of the runner. A axial gap is defined between the member and the seal runner when secured to the shaft and structure respectively, with the projecting extending into only a portion of the gap, such that the gap defines a first width portion and a second width portion, with the member and the seal runner being made of complementary materials for magnetic attraction therebetween. An annular carbon element is mounted to the seal runner to rotate therewith and positioned in the first width portion of the gap, the carbon element having an annular wear surface abutting against the annular member, a plane of the annular wear surface being axially offset from the second width portion of the gap. | 09-18-2014 |
| 20140339776 | MEDICAL GASKET - The present invention aims to provide a gasket which reduces the clamping force required to fit a plunger rod into the gasket, while maintaining a tight fit therebetween. The present invention relates to a medical gasket including a female screw portion to fit a plunger, on the side opposite to a drug contact surface, the female screw portion having roots or crests which gradually increase in diameter from the drug contact surface side toward the opposite plunger side. | 11-20-2014 |
| 20140353920 | Wireless Sensor for Rotating Elements - A system for measuring a physical characteristic of mechanical face seal includes a permanent magnet and a magnetic sensor. The permanent magnet is affixed to a structure proximate to a bearing surface of the mechanical face seal. The permanent magnet has a magnetic field that decreases as a function of temperature. The magnetic sensor is mounted on the mechanical face seal in a magnetic field sensing relationship with the permanent magnet. The magnetic sensor is configured to generate a voltage signal corresponding to a sensed magnetic field. | 12-04-2014 |
| 20150115538 | SEAL ASSEMBLY FOR PUMPS AND FLUID MIXERS - An improved front mechanical seal assembly for pumps and fluid mixers, has an empty body that houses a pair of front mechanical seal rings surrounded by an annular chamber ending with an inlet channel obtained in the empty body, one or more channels for introduction of a washing liquid obtained in the empty body and ending into the annular chamber, a flange fixed to the empty body, housed inside the inlet channel and shaped in such manner to determine an overflow that favors the stagnation of the washing liquid in said annular chamber. | 04-30-2015 |
| 20160032771 | FLUID-COOLED SEAL ARRANGEMENT FOR A GAS TURBINE ENGINE - A component for a gas turbine engine includes a compartment housing that redirects oil from at least one passage in a rotational component onto a backside of a seal land. | 02-04-2016 |
