Abstract: A seal for a valve for use in a pharmaceutical dispensing device, which seal is formed from a thermoplastic elastomer including a propylene component with isotactic crystallinity.

Abstract: A seal for a valve for use in a pharmaceutical dispensing device, which seal is formed from a blend comprising: a thermoplastic elastomer including a propylene component with isotactic crystallinity; and a polymer selected from one or more of polypropylene, polyethylene and copolymers thereof.

Abstract: A seal for a valve for use in a pharmaceutical dispensing device, which seal is formed from a blend comprising: a thermoplastic elastomer including a propylene component with isotactic crystallinity; and a polymer selected from one or more of polypropylene, polyethylene and copolymers thereof.

Abstract: A seal for a valve for use in a pharmaceutical dispensing device, which seal is formed from a thermoplastic elastomer including a propylene component with isotactic crystallinity.

Abstract: A container or vial (1) for a fluid, the container (1) comprising a casing defining an interior for storage of the fluid and a closure member (2). The closure member (2) comprises a body and at least one resilient projection (7) to seal in a storage condition an outlet of the casing, wherein upon an increase in the pressure of the interior of the container (1) the at least one resilient projection (7) is deflected to accommodate outflow of fluid through the outlet. The pressure in the interior of the container (1) may be increased by displacing the closure member (2) into the container (1) or by displacing some other element such as a bung (61, 82) into the container (1). The container (1) and closure member (2) may be used in a dispenser (90) and the closure element may be used in a valve (110).

Abstract: A seal for a valve for use in a pharmaceutical dispensing device, which seal is formed from an elastomeric composition comprising: (a) an isobutylene polymer or co-polymer thereof; (b) a cross-linking agent for the isobutylene polymer or co-polymer thereof; and (c)) an accelerator for the cross-linking agent, wherein the accelerator includes a polysulphide compound derived from a substituted dithiocarbonic acid or derivative thereof.

Abstract: A ball joint 110 for a vehicle having a housing 120 partly enclosing a ball member 112 a cover member 150 provided by an annular, partially everted body of steel which at one end 158 surrounds the housing for attachment and at the other 156 is in-turned at 160 to approach the spherical surface 118 of the ball member radially and at about 45 degrees to the member housing axis. This other end 156 supports an elastomeric sealing ring 142 biased by the member 150 against the spherical surface to prevent contaminants being carried by the ball to the housing seat 126. To tailor the resilience, the cover member is provided with an array of slots 1681 . . . at the curved region 160 which are filled with plugs 1721 . . . of contaminant excluding elastomer and/or the ball sealing ring is biased against the housing adjacent the seat.

Abstract: A ball joint 110 for a vehicle having a housing 120 partly enclosing a ball member 112 a cover member 150 provided by an annular, partially everted body of steel which at one end 158 surrounds the housing for attachment and at the other 156 is in-turned at 160 to approach the spherical surface 118 of the ball member radially and at about 45 degrees to the member housing axis. This other end 156 supports an elastomeric sealing ring 142 biased by the member 150 against the spherical surface to prevent contaminants being carried by the ball to the housing seat 126. To tailor the resilience, the cover member is provided with an array of slots 1681, . . . at the curved region 160 which are filled with plugs 1721, . . . of contaminant excluding elastomer and/or the ball sealing ring is biased against the housing adjacent the seat.