Provided is a seal for sealing the interface between abutting first and second members, the seal comprising a main body; a channel lobe extending outward from the main body, the channel lobe shaped for nesting in a channel of the first member; a primary sealing lobe extending outward from the side of the main body facing the second member, the primary sealing lobe extending into and contacting an inner surface of the second member; and a secondary sealing lobe extending downward from the main body toward an exterior of the interface, a first face of a distal end of the secondary sealing lobe contacting a front face of the first member, and a second face of the distal end of the secondary sealing member contacting a front face of the second member. The disclosed seal maintains a gas-tight seal and minimizes resisting force when closing the door.

A seal including a first portion having a first width that extends in a radial direction of the seal, a second portion that is joined with the first portion and having a second width that is smaller than the first width, and a first recess that is located in the first portion to reduce a width expansion of the first portion when the seal is compressed in an axial direction of the seal.

A sheet member includes a pair of main surfaces opposing each other. A maximum thickness that is a maximum interval between the pair of main surfaces is 40 μm or more and 450 μm or less. The sheet member has a region in which a plurality of coherent pattern lines appear when viewed from a direction facing the pair of main surfaces, the plurality of coherent pattern lines being arranged at intervals in a direction in which one edge portion and another edge portion opposing the one edge portion oppose each other, and a pair in the plurality of coherent pattern lines adjacent to each other do not intersect.

A seal includes an annular body defining a radial direction, an axial direction, and a circumferential direction; and further defines a cross-sectional area including a perimeter. The perimeter may comprise a first axial extremity, a second axial extremity, an outer radial extremity, and an inner radial extremity. The perimeter may include a first axial extremity defining surface and a second axial extremity defining surface, a first concave arcuate surface interposed between the inner radial extremity and the second axial extremity, and a second concave arcuate surface interposed between the outer radial extremity and the second axial extremity.

Briefly, the present invention relates, in one embodiment, to a gasket for sealing a filter housing to a filter mount. The gasket may have an upper body and a lower body which seals between the filter housing and filter head. The gasket may include chamfered surfaces to allow for properly sealing against manufacturing tolerances, and may include an annular groove which receives the filter housing and stabilizes the gasket during installation.

A gasket-mounting structure includes a mounting member and a gasket. The mounting member includes a first base, an outer sleeve protruding from the first base, an inner sleeve protruding from the first base in the same direction of the outer sleeve radially inside the outer sleeve, and a groove surrounded by the first base, the outer sleeve, and the inner sleeve. The gasket includes an annular second base, an annular outer protrusion extending from the second base to be pressed in the groove, and an annular inner protrusion extending from the second base to be axially pressed on the inner sleeve radially inside the outer protrusion such that the inner sleeve is radially placed between the outer protrusion and the inner protrusion.

A pipeline including at least first and second portions, each comprising outer and inner pipes, at least one coupling system connecting the first and second portions and including at least a downstream flange ring connected to at least one of the outer and inner pipes of the first portion, at least an upstream flange ring connected to at least one of the outer and inner pipes of the second portion, connecting elements connecting the upstream and downstream flange rings, first and second annular seals interposed between the upstream and downstream flange rings and configured to delimit, with the upstream and downstream flange rings, a buffer space containing an atmosphere, the pipeline comprising at least one leak detection system configured to determine at least one characteristic of the atmosphere of the buffer space.

A seal is disclosed having a pair of side walls, a base extending between the side walls, a first concave surface extending inwardly from one of the side walls, a second concave surface extending inwardly from the other side wall, and a convex surface extending between the first concave and second concave surface to form a rounded peak having an apex. The seal has a seal width defined between the seal side walls, and a seal height defined between the apex of the rounded peak and the base. The width is at least twice the height of the seal. The seal is located in a channel recess of a first component opposite a second component to seal between the first component and the second component, the channel recess having a floor and a height defined between the floor and a surface of the first component in which the channel recess is formed.

A conduit coupling assembly having first and second sleeve members configured to be tightened to a fluid conduit, an arcuate radial split gasket configured to be positioned between the first and second sleeve members and the fluid conduit, the first sleeve member having an inwardly-facing arcuate radial surface with first and second arcuate portions and a third arcuate portion between the first and second arcuate portions that has a radius from the longitudinal axis of the pipe that is less than the radius of the first and second arcuate portions, and the second sleeve member having an inwardly-facing arcuate radial surface with first and second arcuate portions and a third arcuate portion between the first and second arcuate portions that has a radius from the longitudinal axis of the pipe that is less than the radius of the first and second arcuate portions.

A pipe coupling comprising a housing with a receiving space for a pipe section, with fixing members for releasably fixing the pipe section in the housing, and a sealing element which is arranged in the receiving space and is designed to surround the free end of the pipe section received in the receiving space on the outer circumferential side and thereby seal the interface between the housing and the pipe section in a fluid-tight manner. The pipe coupling is characterized in that the sealing element is designed in the form of a sleeve with a first and a second free end, in that a bulge is provided at the first free end, and in that a tubular section protrudes from the bulge and forms the second free end on the edge side.