초록 ▼

A seal assembly which cooperates between relatively rotatable members for creating a sealing relationship between areas of high and low pressures. The assembly includes a face seal arrangement nonrotatably associated with one of the relatively rotatable members, which face seal arrangement defines t

A seal assembly which cooperates between relatively rotatable members for creating a sealing relationship between areas of high and low pressures. The assembly includes a face seal arrangement nonrotatably associated with one of the relatively rotatable members, which face seal arrangement defines thereon a pair of annular sealing faces, and an annular brush having a plurality of bristles disposed in an annular array. The brush bristles are mounted on the holder such that free ends thereof are in sealing contact with the other member to form a first seal between the areas of high and low pressures, whereby the brush is rotatable along with the other member to minimize wear thereto. The brush defines thereon a pair of annular sealing faces which are disposed in axially adjacent and opposed face-to-face relation with the respective sealing faces of the face seal arrangement to form a second seal between the areas of high and low pressures.

대표청구항 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [23.]23. A seal assembly in combination with first and second relatively rotatable members for creating a sealing relationship between areas of high and low pressures, said assembly com

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [23.]23. A seal assembly in combination with first and second relatively rotatable members for creating a sealing relationship between areas of high and low pressures, said assembly comprising:a face seal structure nonrotatably associated with one of the first and second members and defining thereon a first annular sealing face which extends transversely with respect to a longitudinal axis of the one member;an annular brush including a plurality of bristles disposed in an annular array, said bristles having free ends in sealing contact with the other member to form a first seal between the areas of high and low pressures and to cause rotation of said brush along with the other member; andsaid brush including thereon a second annular sealing face which extends transversely with respect to the axis, said first and second annular sealing faces being disposed in axially adjacent and opposed face-to-face relation with one another to form a non-contacting second seal between the areas of high and low pressures.