Hanger with bolt closures

摘要

A pipe hanger method and apparatus wherein a bolt is threaded upwardly through a first opening within a lower arm portion of a saddle, then, in one form, through an opening in a liner, then through a larger opening in the upper arm portion of the saddle. The opening is non-cylindrical in shape. A nut is then installed on the bolt. The nut has a tapered end portion which interoperates with the shape of the opening in the upper arm of the saddle. The nut is hand-tightened and then is aligned with the opening so that the small end portion would drop into the opening. A wrench is then used on the head of the bolt to rotate the bolt for the purpose of drawing the nut and bolt together and applying a clamping force on a pipe positioned within the saddle. The liner extends along the inside of the bolt and then extends about the pipe, between it and the bight of the saddle, and then in one form extends along the inside of the upper arm portion.

主权项

1. An improved pipe receiving saddle assembly comprising a first arm portion a second arm portion the improvement comprising:
a) a bolt comprising a rod body, an enlarged head at the first end of said rod body and a threaded end portion at the second end of said rod body; b) an improved nut comprising a central opening that is at least partially threaded with female threads which complement the male threads on the bolt, said nut including a tapered small end portion having a cross-sectional shape that is other than circular, and a flange portion substantially larger in diameter than the tapered small end portion; c) a surface defining a first arm opening in said first arm portion, wherein the first arm opening is smaller in size than the head of the bolt and is larger in size than the rod body of the bolt; d) a surface defining a non-circular opening in said second arm portion, said non-circular opening being substantially larger in size than the rod body of the bolt, and smaller in size than the flange portion of the nut, e) the non-circular opening having the same non-circular cross sectional shape as the tapered small end portion of the nut to receive the tapered small end portion of the nut, and hold said nut against rotation; f) wherein the non-circular surface of the tapered small end of the improved nut is angularly tapered from a radially smaller distal portion radially outward to a radially larger proximal portion adjacent the flange portion wherein the larger proximal portion of the non-circular surface of the improved nut removably engages the surface defining the non-circular opening; g) whereby the larger proximal portion of the tapered end of the nut centered within the surface defining the non-circular opening holds the nut against rotation while the bolt is being rotated; h) a locking insert provided within the central opening of the nut; i) wherein the tapered small end portion of the nut is positioned within the non-circular opening in the second arm portion; j) the flange portion is in contact with the second arm surface; and k) wherein the locking insert is longitudinally opposite the small tapered end portion of the nut.