Systems and methods include providing a seal for an assembly. The seal includes a jacket having a base, an inner sealing leg, and an outer sealing leg, and further includes a spring disposed within the jacket between and in contact with the inner sealing leg and the outer sealing leg. The spring includes a metallic annular body comprising an inner diameter and an outer diameter, and a plurality of radially cut perforations disposed about at least one of the inner diameter and the outer diameter of the metallic annular body.

Systems and methods include providing a seal for an assembly. The seal includes a jacket having a base, an inner sealing leg, and an outer sealing leg, and further includes a spring disposed within the jacket between and in contact with the inner sealing leg and the outer sealing leg. The spring includes a metallic annular body comprising an inner diameter and an outer diameter, and a plurality of radially cut perforations disposed about at least one of the inner diameter and the outer diameter of the metallic annular body.

A seal including: annular jacket including a body including a heel, a first lip, and a second lip defining an annular recess, the first lip including an arcuate exterior portion, and having a thickness, W.sub.FL, and a length L.sub.FL; and an annular energizer disposed within the annular recess, adjacent to at least one of the first lip and the second lip, wherein the heel comprises a cutout portion, and wherein the ratio of L.sub.FL:W.sub.FL is greater than 2.

A seal structure may comprise a cavity defined at least partially by an axial surface and a radial surface. A brush seal may be disposed in the cavity. The brush seal may comprise a bristle pack and a backing plate coupled to the bristle pack. A first surface of the backing plate may contact the axial surface, and a second surface of the backing plate may contact the radial surface.

A seal structure may comprise a cavity defined at least partially by an axial surface and a radial surface. A brush seal may be disposed in the cavity. The brush seal may comprise a bristle pack and a backing plate coupled to the bristle pack. A first surface of the backing plate may contact the axial surface, and a second surface of the backing plate may contact the radial surface.

Sealing device including a first seal and a second seal each having an annular support formed in the manner of a sleeve and delimited by a first and second face which are situated opposite each other and a first and second annular sealing elements; wherein the first and second annular sealing elements are independent and separate from each other and are fixed integral with a first portion and a second portion of the annular support which are different from each other and are made of a first and second elastomer mix, the second elastomer mix being different from the first mix and having a greater hardness and higher elastic modulus; at least one annular sealing element being provided radially on the inside with at least one annular lip which extends radially and axially in cantilever fashion from a first end of the annular support.

Sealing device including a first seal and a second seal each having an annular support formed in the manner of a sleeve and delimited by a first and second face which are situated opposite each other and a first and second annular sealing elements; wherein the first and second annular sealing elements are independent and separate from each other and are fixed integral with a first portion and a second portion of the annular support which are different from each other and are made of a first and second elastomer mix, the second elastomer mix being different from the first mix and having a greater hardness and higher elastic modulus; at least one annular sealing element being provided radially on the inside with at least one annular lip which extends radially and axially in cantilever fashion from a first end of the annular support.

V-springs each with a plurality of V-bodies and wherein each V-body has two legs, one shorter than the other. Seal assemblies each with a sealing element having a spring cavity and having a V-spring located therein, the V-spring having a plurality of V-bodies and wherein each V-body each comprising two legs, a long leg that is longer in length than a short leg. The long leg, the short leg, or both long and short legs of the V-bodies can each have one or more bends or inflection points to change a projection of the long leg, the short leg, or both.

V-springs each with a plurality of V-bodies and wherein each V-body has two legs, one shorter than the other. Seal assemblies each with a sealing element having a spring cavity and having a V-spring located therein, the V-spring having a plurality of V-bodies and wherein each V-body each comprising two legs, a long leg that is longer in length than a short leg. The long leg, the short leg, or both long and short legs of the V-bodies can each have one or more bends or inflection points to change a projection of the long leg, the short leg, or both.

A seal including a jacket including an annular body defining a central axis and a recess extending into the annular body concentric to the central axis, where the jacket includes at least 30 wt% of a PTFE and at least 10 wt% of a filler material, and where the filler material includes a boron-containing material, a nitrogen-containing material, a titanium-containing material, a silicon-containing material, a carbon fiber, a glass fiber, or a combination thereof, where the jacket further includes a coating; and an energizing element disposed in the recess.