Joint restraint

F - Mech Eng,Light,Heat,Weapons – 16 – L

Patent

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Details

F16L 25/08 (2006.01) F16L 19/08 (2006.01) F16L 21/08 (2006.01) F16L 23/04 (2006.01)

Patent

CA 2266030

A joint restraint (10) for securing a first pipe (12) to a second pipe. The joint restraint (10) includes an annular body (14) and a plurality of wedge housings (18) extending from the annular body (14) and characterized by open rear faces (38) to allow coreless casting. A bolt (32) is disposed within a hole (30) in each wedge housing (18) and a wedge (40) is disposed within each wedge housing (18). Each wedge (40) has a bolt-actuated tooth (52), a larger pressure--actuated tooth (54), a top surface (44) having a groove (48) adapted to slidably receive a bolt actuator (32), and a bottom surface (42) that is partially tapered to act as a bearing (76) limiting the extent of bolt-driven actuation.

Joint (10) de raccordement permettant de fixer un premier tuyau (12) à un deuxième tuyau. Le joint de raccordement comprend un corps annulaire (14) et une pluralité de logements (18) pour clavettes qui s'étendent depuis le corps annulaire (14) et se caractérisent par des faces arrières ouvertes (38) qui permettent d'effectuer un moulage sans noyau. Un boulon (32) est introduit dans un trou (30) prévu dans chaque logement (18) de clavette et une clavette (40) est placée dans chaque logement (18) associé. Chaque clavette (40) comporte une dent (52) actionnée par le boulon, une dent (54), plus grosse, actionnée par la pression, une surface supérieure (44) comprenant une encoche (48) prévue pour loger coulissant un actionneur (32) de boulon et une surface inférieure qui est partiellement réduite pour servir de palier (76) limitant l'ampleur de l'action du boulon.

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