US 5,358,287 AGranted

Jointed pipe connection

AssigneeWitzenmann GmbH Metallschlauch-Fabrik Pforzheim

InventorWilfried Winzen

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Abstract

Jointed pipe connections are used for axial, angular and lateral oscillation decoupling of tubular pipe segments. A jointed pipe provided for connection with a first pipe segment has an annular fold, against which a pressed wire ring rests respectively on the right and left sides. The pressed wire rings are enclosed by an annular cuff which, by means of a pipe socket, forms a cuff pipe used for a connection with a second pipe segment. This prior art arrangement permits only a limited annular movement. The permitted pivot angle diminishes as pipe diameter increases. In accordance with the invention, a plurality of joint areas are provided. The jointed pipe (3) located on the inside has annular folds (4) at both ends. Annular pads (5) rest against these and are enclosed in pairs by annular cuffs (6). The cuffs (6) have pipe sockets (6a) by means of which they are connected with the pipe segments. The cuffs (6) are connected in a gas-tight manner by a sealing bellows (9, 29).

Claims13

Dependent claims

A jointed pipe connection for interconnecting a first pipe segment (2) and a second pipe segment (2') in a gas-tight manner, while permitting limited axial, angular, and lateral oscillations of the two pipe segments (2,2') with respect to each other,

comprising
a pipe link (3, 21) located axially between said pipe segments and having first and second ends located respectively adjacent said first and second pipe segments (2,2');
at least a first annular pad (5, 25) of elastic, heat-resistant material, mounted circumferentially around said first end of said pipe link (3,21);
a first cuff (6) secured to said first pipe segment extending axially over said first annular pad (5,25);
and
a sealing bellows (9, 29) radially outside and surrounding said pipe link (3, 21) and having a first end secured in a gas-tight manner (8) to said first cuff (6);
said pipe link first end, said first annular pad, and said sealing bellows first end collectively defining a first joint having a first pivot point (D1);
at least a second annular pad (5', 25') of elastic, heat-resistant material, mounted circumferentially around said second end of said pipe link (3, 21);
a second cuff (6') secured to said second pipe segment (2') and extending axially over said second annular pad (5', 25');
said sealing bellows (9, 29) having a second end secured in a gas-tight manner (8') to said second cuff (6');
said pipe link second end, said second annular said sealing bellows second end collectively defining a second joint having a second pivot point (D2).

8 more elements

Dependencies are inferred from the claim text.