A sealing plug for sealing a hole in a plate to be sealed comprising: an operating part; a base body comprising a neck ring and a tapered ring, the neck ring comprises an annular sealing surface on an outer circumferential surface thereof, and the base body is configured to be movable towards or away from the operating part around a bottom part of the tapered ring; an upper support lip; and a lower support lip; the sealing plug is configured to seal the hole in the plate to be sealed through the annular sealing surface. The sealing plug forms a sealing structure by means of press fitting between a hole edge of the plate to be sealed and the annular sealing surface on the outer circumferential surface of the neck ring. The sealing structure of the sealing plug is irrelevant with the deformation of the upper support lip, and therefore does not affect an insertion force required to insert the sealing plug into the hole. The amount of interference between the hole edge of the plate to be sealed and the annular sealing surface of the sealing plug may be adjusted according to the requirement for a waterproof pressure.

Chemical flashings for track assemblies and mount assemblies employed in solar power installations are disclosed. In some embodiments, a track assembly having a base, a pair of rails, a sealant receiving cavity and a round groove extending into the base from the bottom of the base, and a compressible round seal disposed within the base extending past the bottom is disclosed. In some embodiments, a mount assembly having a vertical structure, a sealant receiving cavity and a round groove extending into the base from the bottom of the base, a compressible round seal disposed within the base extending past the bottom, and an excess sealant cavity is disclosed.

The subject disclosure relates to a water-tight sealed stud assembly for high current applications. The water-tight sealed stud assembly can include a stud, a sealing ring, a sleeve, and a body. The stud may have a stud base and a thickened portion having an annular groove. The sealing ring may be disposed in the annular groove. The sleeve may be disposed circumferentially around the stud and made of a conductive material. The body may be disposed circumferentially around the sleeve and made of a non-conductive material. Systems and methods are also provided.

A gasket, and more particularly, to a gasket including a sealing material with grooves in a surface thereof and a filler provided between the sealing material are proposed. With the gasket, it is possible to secure higher airtightness, stability and restorability than gaskets of the related art.

Embodiments of the present invention provide a pre-combustion chamber assembly, comprising (a) a body, having a cylindrical end portion having a step-wise increase in diameter forming a sealing surface for sealing to an engine; (b) a tip, with a hollow shaft in fluid communication with a combustion region of the tip, where the shaft has a first shaft diameter that allows the shaft to be slid over a portion of the body; (c) a gasket mounted about the body and resting against the sealing surface, wherein the gasket comprises a wire wound washer.

A seal for a vacuum chamber is formed from two outer insulation blocks, an intermediate insulation block, some interior insulation sheets and some exterior insulation sheets. A first outer insulation block seals between a first wall of the vacuum chamber and a first power transmission plate. A second outer insulation block seals between a second wall of the vacuum chamber and a second power transmission plate. The intermediate insulation block seals between the first and second power transmission plates. The interior insulation sheets are arranged in slots in a first side of the intermediate insulation block. The exterior insulation sheets are arranged in the slots in a second side of the intermediate insulation block.

A U-base clip component can include a pair of rib coupling barbs which can extend inwardly from two opposing clip side walls. A seal component can include two opposing aperture retention wings coupled to a central wall. A first and a second component annular seal can extend from opposite respective sides of the central wall. The U-base clip component and the seal component can define an interior rib receiving cavity between both the clip side walls and the aperture retention wings. A pair of rib coupling barbs can extend into the interior rib receiving cavity from the clip side walls and the two opposing aperture retention wings can extend exteriorly from the clip side walls. The rib coupling barbs of the U-base clip can be designed to couple fastener to the rib and the aperture retention wings can be designed to couple the dual component sealing fastener to the aperture.

There is proposed an annular seal for a pipe coupling, comprising, a lower portion beatable within an upwardly open annular groove in the pipe coupling, an upper portion having an upwardly facing abutment surface, a depending skirt and a stiffening ring. The depending skirt is configured for engagement over a circular upstand of the pipe coupling, which is located inwardly of the annular groove. The stiffening ring is located within the upper portion of the annular seal, and includes an annular portion that is generally parallel with and spaced apart from the abutment surface and at least one circumferential leg depending from the annular portion that provides reinforcement for the depending leg.

An expansion joint seal has a core of resiliently-compressible material, a sensor, and a sensor-signal receiving device to identify internal and/or environmental conditions.

A bulkhead fitting device configured to sealingly link a conduit and a wall traversed by the conduit. This bulkhead fitting device includes a first ring sealingly linked to the conduit, a second ring having a flat, ring-shaped sealing face configured to be pressed against a contact face of the wall or of an intermediate part linked to the wall, an elastically deformable intermediate annular portion sealingly linking the first and second rings, a holding system configured to press the sealing face against the contact face. This bulkhead fitting device guarantees an optimum seal while enabling the absorption of forces and slight relative movements between the conduit and the wall. The device also helps to limit the propagation of vibration.