The two- stage seal may be used in arrangements requiring both dynamic sealing and static sealing, such as in some process control valves.

The seal comprises sealing portions (36, 38) respectively capable of applying a dynamic sealing with one of the two elements (16) and a static sealing with the other element (14).

The seal comprises sealing portions (36, 38) respectively capable o f applying a dynamic sealing with one of the two elements (16) and a static sealing with the other element (14).

The annular adjustment member includes an elastomeric member (22) that creates a dynamic seal in a radial direction.

The seal assembly provides a dynamic fluid seal between a housing having a bore and a shaft having an outer running surface rotating within the bore.

A piston sliding ring (15) fits an inner-circumferential wall surface of a cylindrical channel in a dynamic seal manner.

A dynamic shaft seal assembly has inner and outer cases that are clamped together to secure a seal element therebetween for dynamic sealing about a rotatable shaft.

This process makes it possible to obtain a joint in which the fibres can be aligned parallel to the contact surface of this joint which ensures dynamic sealing.

The compression between two blocks (5, 6) establishing a dynamic seal (13) between a rotor (2) and a stator (1) is provided by an inflatable seal (7) housed in a groove.

In dynamic seal applications, a very important factor that influences the quality of the seal and gasket, is the force of friction.

A hydrodynamic seal for location in a seal groove of a structure, such as a housing and for dynamic sealing engagement with a relative rotatable surface.

The gasket (3) slidably seals the inside of a barrel (2) on which a Luer taper section (5) is formed and has a cavity section (10) in its inner periphery side.

Wear between the contacting surfaces is uniform at all points of contact between the sliding tractrix surface and the complementary tractrix surface, creating and maintaining a dynamic seal.

The at least one metering recess is formed in a face of the dosing member which is urged into contact against a similar mating face of the body at the lower end of the reservoir to form a dynamic seal.

In dynamic seal applications, friction and the consequent increase in temperature of the compound can speed up ageing and therefore the worsening of the Compression Set (increase of the percentage value).