A drain system includes a drain body attachable to a subfloor and configured for attachment to a pipe member below the subfloor. A seal component is positionable between the drain body and the pipe member and is arranged to form a seal therebetween. The seal component has a body including open upper and lower ends defining an opening therethrough for receiving a portion of the pipe member. An outer surface of the body defines an interface between the seal component and the drain body arranged to permit a first angular movement between the seal component and the drain body. An inner surface defines an interface between the seal component and the pipe member and is arranged to seal and permit a second angular movement between the seal component and the pipe member, wherein the second angular movement is different than the first angular movement.

A device for gas-tight connection includes: a first connection point with a terminal surface; a second connection point with a stationary, predetermined reference surface of a pipe flange connection, which is arranged relative to the terminal surface by an offset angle which is compensated for by angular offset compensation means; and a flanged disc unit. The first connection point includes a central ball-and-socket joint arrangement as angular misalignment compensation means. The central ball-and-socket joint arrangement has a tube section with a convex distal end region configured to interact in an articulated manner with a concave annular region, corresponding thereto, of the flanged disc unit. A side surface region of the flanged disc unit includes at least one adjusting screw for adapting to the offset angle so as to adjust a local distance to a counter-disc fixedly fastened coaxially to a pipe section adjacent to the convex distal end region.

A device for gas-tight connection includes: a first connection point with a terminal surface; a second connection point with a stationary, predetermined reference surface of a pipe flange connection, which is arranged relative to the terminal surface by an offset angle which is compensated for by angular offset compensation means; and a flanged disc unit. The first connection point includes a central ball-and-socket joint arrangement as angular misalignment compensation means. The central ball-and-socket joint arrangement has a tube section with a convex distal end region configured to interact in an articulated manner with a concave annular region, corresponding thereto, of the flanged disc unit. A side surface region of the flanged disc unit includes at least one adjusting screw for adapting to the offset angle so as to adjust a local distance to a counter-disc fixedly fastened coaxially to a pipe section adjacent to the convex distal end region.

The pipe ball joint includes a casing having a socket portion with a substantially spherical interior surface and a first pipe segment extending from the socket portion. The socket portion has an annular groove disposed adjacent the partially spherical interior surface. A ball pipe section includes a ball segment received in the socket portion of the casing and a second pipe segment extending from the ball segment. A seal assembly is received in the annular groove of the casing and is disposed against the ball segment of the ball pipe section. The seal assembly includes a plurality of nested seal rings that each include a concave face and a convex face.

A gimbal apparatus is disclosed, including a tubular envelope with a variable length between first and second rim structures. A rigid ring structure inside the tubular envelope is connected to diametrically opposite first and second portions of the first rim structure, and is connected to diametrically opposite first and second portions of the second rim structure. A spoke bisects the ring structure.

A gimbal apparatus is disclosed, including a tubular envelope with a variable length between first and second rim structures. A rigid ring structure inside the tubular envelope is connected to diametrically opposite first and second portions of the first rim structure, and is connected to diametrically opposite first and second portions of the second rim structure. A spoke bisects the ring structure.

A pipe coupling universal joint has a first fitting portion and a second fitting portion. An edge circumference of the first or second fitting portion is separated from a reference plane by a length set to 21 to 23% of the maximum diameter length of the first or second fitting portion on the reference plane in a direction opposite to a side where a straight pipe portion is connected from the reference plane.

A pipe coupling universal joint has a first fitting portion and a second fitting portion. An edge circumference of the first or second fitting portion is separated from a reference plane by a length set to 21 to 23% of the maximum diameter length of the first or second fitting portion on the reference plane in a direction opposite to a side where a straight pipe portion is connected from the reference plane.

A ball joint having first and second coupling parts connected thereto in an articulated manner, which coupling parts have interconnected liquid ducts. second coupling part is held pivotably by a spherical front end region between a shape-adapted joint socket on the first coupling part and a joint head on a holding element provided in the inner cavity of the second coupling part. The holding element interconnects the liquid ducts of the first and second coupling parts, and the second coupling part has, on its inner wall delimiting the inner cavity, an annular groove in which a ring seal is provided. A first annular shoulder is provided on the inner wall of the second coupling part, an annular or sleeve-shaped insert part can be inserted into the inner cavity of the second coupling part, and the insert part is spaced apart from the first annular shoulder such a that the spacing between the first annular shoulder and the front edge of the insert part that faces the first annular shoulder forms the annular groove.

A ball joint having first and second coupling parts connected thereto in an articulated manner, which coupling parts have interconnected liquid ducts. second coupling part is held pivotably by a spherical front end region between a shape-adapted joint socket on the first coupling part and a joint head on a holding element provided in the inner cavity of the second coupling part. The holding element interconnects the liquid ducts of the first and second coupling parts, and the second coupling part has, on its inner wall delimiting the inner cavity, an annular groove in which a ring seal is provided. A first annular shoulder is provided on the inner wall of the second coupling part, an annular or sleeve-shaped insert part can be inserted into the inner cavity of the second coupling part, and the insert part is spaced apart from the first annular shoulder such a that the spacing between the first annular shoulder and the front edge of the insert part that faces the first annular shoulder forms the annular groove.