Abstract: A sealing article includes a body and a coating layer disposed on at least one surface of the body. The body comprises a polymeric elastomer such as perfluoroelastomer or fluoroelastomer. The coating layer comprises at least one metal. The sealing article may be a seal, a gasket, an O-ring, a T-ring or any other suitable product. The sealing article is resistant to ultra-violet (UV) light and plasma, and may be used for sealing a semiconductor processing chamber.

Abstract: A method of making a sealing article that includes a body and a coating layer disposed on at least one surface of the body. The body comprises a polymeric elastomer such as perfluoroelastomer or fluoroelastomer. The coating layer comprises at least one metal. The sealing article may be a seal, a gasket, an O-ring, a T-ring or any other suitable product. The sealing article is resistant to ultra-violet (UV) light and plasma, and may be used for sealing a semiconductor processing chamber.

Abstract: A chain including a plurality of pairs of alternate inside links and outside links, rollers, pins, and a connector having two links, wherein each first end of the outside links and first ends of the links of the connector has a diameter the same as that of a second end of a corresponding inside link, and each second end of the outside links and second ends of the links of the connector has a diameter greater than that of a first end of a corresponding inside link.

Abstract: A chain connector includes a second chain plate being integrated with a chain pin in each lateral portion thereof, each chain pin having an annular groove adjacent to an end distal to the second chain plate to form a neck portion. A first chain plate has a biased hole in each lateral portion thereof corresponding to chain pins respectively, the biased hole having an inward flange along a lower portion of a periphery thereof to engage with the neck portion of the pin inserted through an end link of a chain to connect the chain.

Abstract: A chain comprises a plurality of pairs of outer and inner chain plates linked by rollers and pins, each chain plate being configured as a rectangle which has a protuberant arched portion on each transverse end thereof, and each chain plate having blade portions along longitudinal upper and lower edges thereof. Each inner chain plate has inward cylindrical flanges on an inner face thereof around a periphery of the countersunk through holes thereof. Each outer chain plate has a frustum-like projection surrounding the countersunk through holes on an inner face thereof, and an inward blade portion along an edge of each arched portion thereof.

Abstract: A chain is a combination of plural links. Each link comprises a first inner chain plate, a second inner chain plate, a first outer chain plate, and a second outer chain plate linked by rollers and pins. Each chain plate includes a straight waist portion disposed between two semi-circular end portions, an inner face formed with an incline extending along an edge thereof, and a blade portion merging with the incline at the straight waist portion. The first outer chain plate includes a transverse dimension greater than that of the second outer chain plate, while the first inner chain plate includes a transverse dimension greater than that of the second inner chain plate.

Abstract: A chain is a combination of a plurality of links, each link comprising a pair of outer and inner chain plates and rollers, each chain plate being dumbbell shaped and providing an inclined surface along an upper and lower edge of an inner surface thereof, from one lateral end to another. The inclined surface has a blade portion with a greater slope in a central straight portion of the chain plate, the inner chain plate further providing an inward projection on an innermost central portion thereof.

Abstract: A chain is a combination of a plurality of links, each link comprising a pair of outer and inner chain plates and rollers, each chain plate being dumb-bell-shaped and providing an inclined surface along an upper and lower edge of an inner surface thereof from one lateral end to another, the inclined surface having a blade portion with greater slope in a central straight portion of the chain plate.

Abstract: A chain has pairs of inner sheets and pairs of outer sheets. Each sheet has two rings. An annular flange is formed on each ring. An inner surface of an opposite end to a free edge of each annular flange is rounded so as to form a recess. Each annular flange of the outer sheet is received in the recess of one inner sheet. A pin is inserted through the annular flanges of a pair of inner sheets and a pair of outer sheets. A head of the pin is received in the recess of the outer sheet. The other end of the pin is deformed so as to be received in the recess of the other outer sheet.

Abstract: A chain has pairs of inner sheets and pairs of outer sheets. Each sheet has two rings. An annular flange is formed on each ring. An inner surface of an opposite end to a free edge of each annular flange is rounded so as to form a recess. Each annular flange of the outer sheet is received in the recess of one inner sheet. A pin is inserted through the annular flanges of a pair of inner sheets and a pair of outer sheets. Both ends of the pin are deformed so as to be received in the recesses of the outer sheets.