Abstract: A pipe coupling includes a coupling body 50 and swage ring 52 for urging over the coupling body 50 in order to secure pipes 108 together. The coupling body 50 includes a first main sealing tooth 50 and a second outboard sealing tooth 56. The swage ring 52 includes a kickdown device 101 which restores a loading force between the first main sealing tooth 50 and the pipe 108, which loading force may have been reduced due to sequential tooth engagement and pipe radial deformation.

Abstract: A hydraulic assembly tool (70) includes a fixed jaw (76) and a movable jaw (78). The movable jaw (78) includes load bearing surfaces (86,118) which provide for even wear and counter torsional forces in order to increase the useful life of the tool (70).

Abstract: A pipe fitting 20 adapted for joining pipe 28, 30 comprises a swage ring 22, 24, 52 with a locking mechanism area 42, 63 which can lockingly engage with either a coupling body 26 and/or a pipe 28, 30, 56 which has a locking mechanism 44, 64 in order to prevent relative motion between the swage ring 22, 24 and the coupling body 26 and/or the swage ring 52 and the pipe 56. Such an arrangement prevents the swage ring 22, 24 from backing off of the fitting 20 should the fitting 20 be subject to flexing due to bending forces.

Abstract: A pipe coupling (100) including a coupling body (104) and a swage ring (102) for urging over the coupling body (104) in order to secure the pipes (122) together. The coupling body (104) includes a main sealing tooth (105) with an outboard isolation tooth arrangement (106). The isolation tooth arrangement (106) includes a plurality of isolation gripping teeth (108) which allows for a reducing gradient of pipe deformation in a direction toward the edge 118 of the coupling body (104) of the pipe fitting (100).

Abstract: A pipe coupling including a coupling body and swage rings for urging over the coupling body in order to secure the pipes together. The coupling body includes a main sealing tooth with an outboard isolation tooth and an inboard tooth located on opposite sides of the main sealing tooth. First and second grooves are defined between the main sealing tooth and the outboard isolation tooth and the inboard tooth, which grooves are of sufficient length and depth so that pipe secured by the coupling is not substantially deformed adjacent the first and second grooves in order to enhance the ability of the main sealing tooth to bite into the pipe in order to provide a hermetic seal and also to increase the resistance of the coupling to tensile loads. The outboard isolation tooth and inboard tooth protect the seal created by the main sealing tooth from external forces caused by bending. The main sealing tooth can include a twin tooth having a parent tooth and one or more sealing teeth extending therefrom.