A bellows assembly for a downhole tool includes a first seal ring, a second seal ring, and a bellows positioned at least partially between the first and second seal rings. The first seal ring, the second seal ring, and the bellows are integral with one another such that the bellows assembly is monolithic. The bellows is configured to expand and retract. The bellows is annular and has a diameter that varies over a length of the bellows. A material composition of the bellows varies over the length of the bellows.

A sealing element, in particular for sealing a frame element with respect to a building component, having a sandwich structure, including: a metallic primary layer which is creped at least in certain regions to form an elongation reserve of the sealing element; a secondary layer; and a bitumen-including filling layer which is arranged between the primary layer and the secondary layer.

A sealing element, in particular for sealing a frame element with respect to a building component, having a sandwich structure, including: a metallic primary layer which is creped at least in certain regions to form an elongation reserve of the sealing element; a secondary layer; and a bitumen-including filling layer which is arranged between the primary layer and the secondary layer.

To provide a dust cover capable of maintaining a state in which a first flexible part and a second flexible part of a bellows are fitted onto a mounting member. A dust cover includes a bushing, a bellows, and a mounting member. The mounting member has a main body and a flange part.

To provide a dust cover capable of maintaining a state in which a first flexible part and a second flexible part of a bellows are fitted onto a mounting member. A dust cover includes a bushing, a bellows, and a mounting member. The mounting member has a main body and a flange part.

Embodiments of an actuator assembly for a power tailgate system are disclosed. The actuator assembly includes an actuator having a housing, a guide with a first end extending from the housing and a second end opposite the first end, and a slide coupled to the guide so as to be movable with respect to the guide second end. The actuator assembly also includes a bellows having a first end attached to the guide first end, a second end opposite the first end and attached to an end of the slide, and a body extending between the first and second ends. At least one hole is formed in the bellows proximate the bellows second end and enables fluid communication between an interior of the bellows and an exterior of the bellows. The bellows may expel moisture collected therein during operation of the actuator.

A sealing member according to the present invention includes a head plate having a through hole and attached to an opening end of a pump column, a lift shaft penetrating the through hole and raised and lowered between a raised position and a lowered position in raising and lowering the pump, and a bellows member extending and contracting corresponding to the raising and lowering of the lift shaft. The bellows member includes a bellows tube covering an outer peripheral surface of a protruding portion of the lift shaft protruding upward from the head plate, a first attaching member disposed contiguously to an upper end of the bellows tube and attached to an upper end surface of the lift shaft, and a second attaching member disposed contiguously to a lower end of the bellows tube and attached to an upper surface of the head plate.

A sealing member according to the present invention includes a head plate having a through hole and attached to an opening end of a pump column, a lift shaft penetrating the through hole and raised and lowered between a raised position and a lowered position in raising and lowering the pump, and a bellows member extending and contracting corresponding to the raising and lowering of the lift shaft. The bellows member includes a bellows tube covering an outer peripheral surface of a protruding portion of the lift shaft protruding upward from the head plate, a first attaching member disposed contiguously to an upper end of the bellows tube and attached to an upper end surface of the lift shaft, and a second attaching member disposed contiguously to a lower end of the bellows tube and attached to an upper surface of the head plate.

In a dust cover for a ball joint, one end of a ball stud is retained within a socket, the other end is fixed by fastening a knuckle having a notch portion, one end large-diameter and other end small-diameter opening portions are respectively retained to the socket and the shaft, and a plate member is retained between an inner peripheral surface of the knuckle and an outer peripheral surface of the shaft. The plate member is constructed by an annular plate member, an elastic annular seal portion integrally formed in an inner peripheral side of the annular plate member, and an elastic engagement projection in the annular plate member in the knuckle side, and engaging with the notch portion. The annular seal portion is retained in a compression manner between an annular step portion in an inner peripheral surface of the knuckle and an outer peripheral surface of the shaft.

In a dust cover for a ball joint, one end of a ball stud is retained within a socket, the other end is fixed by fastening a knuckle having a notch portion, one end large-diameter and other end small-diameter opening portions are respectively retained to the socket and the shaft, and a plate member is retained between an inner peripheral surface of the knuckle and an outer peripheral surface of the shaft. The plate member is constructed by an annular plate member, an elastic annular seal portion integrally formed in an inner peripheral side of the annular plate member, and an elastic engagement projection in the annular plate member in the knuckle side, and engaging with the notch portion. The annular seal portion is retained in a compression manner between an annular step portion in an inner peripheral surface of the knuckle and an outer peripheral surface of the shaft.