Abstract: A circular annular seal ring made from a resin is adapted to be disposed between an outer member and an inner member that rotate relative to each other. The seal ring is disposed in a circumferential groove of the outer member or the inner member to isolate a liquid space from an external space. The seal ring is formed from an elongated and arcuate rod to define a circle by joining ends of the rod, and has a junction formed from the ends. The seal ring has a radial thickness gradually decreasing from two points that are apart from the junction toward the junction. The points are separated from the junction by an angle of not less than 60 degrees and not more than 150 degrees about a central axis of the circle.

Abstract: A small frangible device for repairing stripped or damaged holes for reinsertion of a screw or nail while reusing and maintaining the original properties of the fastener and capable of immediate use with minimal preparation. The device is characterized as having a generally elongated rounded exterior surface with a relatively narrow end and an opposite thicker end forming a tapering conical shape with a hollow interior and a textured outer surface further characterized by a plurality of non-contiguous, mis-aligned, raised, semi-spherical bumps.

Abstract: A vehicle includes an electric machine. The electric machine is configured to propel the vehicle. The electric machine has a stator, a rotor, and a labyrinth seal. The stator is secured to a housing. The rotor is secured to a shaft and is configured to transfer rotational power generated by the electric machine to at least one drive wheel via the shaft. The labyrinth seal is disposed between the shaft and the housing. The labyrinth seal comprises inner and outer rings secured to the shaft and housing, respectively. The inner and outer rings have interleaved protrusions defining a tortuous channel extending axially between first and second ends of the labyrinth seal. A conductive grease is disposed within the tortuous channel. The inner ring, outer ring, and conductive grease are configured to direct electrical currents induced in the shaft to the housing.

Abstract: The present disclosure relates to a seal, such as a gasket, for sealing a gap in a housing, said gap extending around an inner chamber of the housing, and thus for sealing the inner chamber from an exterior of the housing, comprising at least one sealing layer. The present disclosure further relates to a frame seal that provides sealing between at least two components of the housing, for example a bottom part and a top part of the housing, for example of a motor vehicle battery housing or motor vehicle battery box housing.

Abstract: Provided is sliding components capable of stably obtaining a low-friction effect even in a non-lubricated environment. Sliding components and have sliding surfaces and performing relative sliding. A carbon film in which a polymer structure is dispersed is formed on the sliding surface of the sliding component. The proportion of the polymer structure dispersed in the carbon film is such that an extinction coefficient of 0.2 or less and a refractive index of 1.5 to 2.0 are satisfied in a wavelength range of 550 nm of spectroscopic ellipsometry.

Abstract: Aircraft door seals, especially door seals for aircraft cargo doors, include individual door seal sections joined together by a lap joint assembly. The door seal sections may have abutted ends establishing a seal junction, and a lap joint junction seal assembly to sealingly join the abutted ends of the door seal sections, wherein the lap joint junction seal assembly includes (i) a lap joint member having a lap joint base and a lap joint shelf extending from the lap joint base and sealingly engaged with a lower surface of the door seal sections over the seal junction, and (ii) an interior support spigot inserted within the interior space of each of the door seal sections at the abutted ends thereof. Each of the door seal sections may be a hollow profiled door seal defining the interior space and formed of an elastomeric sealing material.

Abstract: A press-in-place reinforced seal for an interface between adjacent components, includes a cylindrical structure arranged along a longitudinal axis and characterized by a stepped-shape in a cross-sectional view. The seal is pressed into a first component and compressed by a second component when the seal is installed within the interface. The stepped-shape includes a compliant first section having a first width along the longitudinal axis and a first length orthogonal to the longitudinal axis. The first section is compressed by the second component and generates sealing pressure between the first and second components when the seal is installed. The stepped-shape also includes a rigid second section affixed to the first section along the first length for stabilizing the seal structure. The second section has a second width along the longitudinal axis and a second length orthogonal to the longitudinal axis and greater than the first length.

Abstract: A sealing gasket is shown which is used to seal the belled end opening of a female ductile iron pipe to a mating male pipe having an interior surface and an exterior surface. The sealing gasket has an annular gasket body made of a resilient elastomeric material which is bonded to a hard plastic reinforcing band. The annular gasket body is installed within a raceway provided in the mouth region of the female ductile iron pipe so that an outer circumferential region forms a seal with the female pipe mouth region and an inner circumferential region forms a sealing surface for the exterior surface of the mating male pipe. The reinforcing band has a circumferential body which is made of a synthetic polymer which has a greater hardness than the elastomeric material of the remainder of the gasket body.

Abstract: A pressure retained gasket seal provides enhanced resistance to hydraulic unloading by including a notch formed in a rear face of the gasket groove, thereby reducing intrusion of process fluid behind the gasket and improving hydraulic retention of the gasket seal. Embodiments increase the process fluid pressure limit of the gasket seal by a factor of two or three compared to gasket seals of the prior art. In embodiments, the gasket groove has a dovetail cross-section, thereby increasing resistance to process fluid pressure by requiring compression of the gasket before it can be dislodged from the groove. Embodiments form the gasket from flexible graphite, which can be initially shaped as an annulus and then forced by an applied load into the gasket groove in conformance with the notch. Embodiments include compressing the graphite to within 50% or even 70% of its maximum density during installation thereof.

Abstract: The present disclosure provides a sealing ring assembly having a first ring and a second ring, configured to seal a high-pressure region from a lower pressure region of a piston and cylinder device. Accordingly, the sealing ring assembly includes a high-pressure boundary and a low-pressure boundary. Each ring may be segmented, and the first and second rings interface along a surface. Along the surface at the interface, a groove open to the lower pressure region aids in pressure locking the sealing ring assembly. A pocket in the second ring allows for high pressure gas to aid in balancing radial forces on the sealing ring assembly. As the sealing ring wears, the first and second rings remain engaged with one another.

Abstract: A seal structure includes a first layer having at least one first upward projecting portion, and a second layer having at least one first upward projecting portion. At least part of the first upward projecting portion of the first layer is covered with the first upward projecting portion of the second layer, and a composition material of the first layer is harder than a composition material of the second layer.

Abstract: An assembly to provide a moisture proof or moisture resistant seal about a bundle of wires. The assembly includes a shrink boot, such as a cold shrink boot, and a tacky sealant, such as a polyurethane gel, that will deform and flow under the pressure of a collapsing tube of the shrink boot.

Abstract: In order to provide a seal arrangement, in particular for sealing a first fluid space from a second fluid space or a plurality of fluid spaces, which on the one hand can be produced in a simple and cost-effective manner and also allows reliable sealing of a first fluid space from a second fluid space, it is proposed that the seal arrangement comprises the following: A sealing element for arrangement between a first object and a second object, the sealing element comprising two or more sealing element components which can be or are connected directly or indirectly to one another and which each comprise a base body part and a resilient sealing body part arranged on the base body part, the base body parts of the sealing element components preferably forming a dimensionally stable base body of the sealing element, and the resilient sealing body parts of the sealing element components forming a resilient sealing body for providing a sealing function of the sealing element.

Abstract: A segmented sealing assembly includes a first sealing segment having a first resilient sealing element with a first primary sealing surface and a tongue having a secondary sealing surface, and a second sealing segment having a second resilient sealing element with a second primary sealing surface and a groove having another secondary sealing surface. The first and second sealing segments are movable into a contact engagement to form the sealing assembly. When the first and second sealing segments are moved into the contact engagement, the first and second primary sealing surfaces form a primary seal, and the tongue and the groove form a secondary seal.

Abstract: A non-collapsible flexible sealing membrane (or bellows) for incorporation in a mechanical seal assembly and use in rotary shaft equipment. The sealing membrane includes a substantially radially outward extending first flange portion, which can be urged into an axially shiftable ring by a biasing mechanism. The sealing membrane further includes a substantially axially outboard extending second coaxial portion, substantially radially inward of the balance diameter of the seal. The horizontal portion is advantageously held fixed to a stub sleeve by an annular band. The angle between the vertical portion and the horizontal portion of sealing membrane enables directional control of the forces acting on stub sleeve and primary ring.

Abstract: A sealing device has a sensor system for condition monitoring. The sealing device includes a sealing ring with a dynamic sealing section for dynamically sealing abutment at a sealing surface of a machine part and a pretensioning ring for pretensioning the sealing section against the sealing surface having a first section and a second section. The second section can be deflected in a spring-elastic manner in an axial or radial direction relative to the central axis of the sealing device from a first position relative to the first section. The sensor system includes at least one measuring element arranged in the intermediate space on the pretensioning ring, which responds indirectly or directly to a deflection movement of the first section of the pretensioning ring. A sealing arrangement may have such a sealing device.

Abstract: The sealing system (1) for a machine comprises: a sealing element (4) that is movable back and forth along a direction (D) and that comprises a first recess (41) with first and second surfaces (42, 43), a component (2) of an assembly of the machine that comprises a second recess (21) with first and second surfaces (22, 23), and an elastic element (5). The first and second recesses (41, 21) face each other. The elastic element (5) is partially housed inside the first recess (41) and partially housed inside the second recess (21) so to apply forces on the first and second surfaces (42, 22, 43, 23) depending on where the sealing element (4) is positioned with respect to the component (2).

Abstract: A piston ring includes a plurality of first ring pieces placed inside the ring groove in a stacking manner such that the first ring pieces adhere to each other in the axis direction. The first ring pieces include respective piston ring gap portions each having end surfaces separated from each other in the circumferential direction of the first ring pieces such that the end surfaces face each other via a ring gap having a predetermined dimension. The respective piston ring gap portions of the first ring pieces are displaced from each other in the circumferential direction. A closing member is provided to close the piston ring gap portions of the first ring pieces in the radial direction of the first ring pieces.

Abstract: A ring seal and a robot. The ring seal includes an outer circumferential wall and an annular portion. The outer circumferential wall extends in an axial direction of the ring seal. The annular portion extends from a side of the outer circumferential wall toward an interior of the outer circumferential wall in a radial direction of the ring seal. As viewed in a cross section taken along the radial direction, the annular portion and the outer circumferential wall form an L shape.

Abstract: An annular sealing device is configured to be mounted in an annular groove provided on the outer periphery of a shaft so as to seal an annular space between the shaft and a housing that rotate with respect to each other, and change the fluid pressure in the space, and maintains the fluid pressure in a target region to be sealed, and slidably contacts a sidewall surface on the low pressure side of the annular groove.