Abstract: A lightweight very low-profile hose clamp formed from only three pieces: an elongated wire bent to form a pair of loops which are in spaced side-by-side arrangement and joined at the top by an integral nut section formed by one and one-half tight convolutions of the wire; a heavy gage steel actuating plate having three holes therein, the ends of the wire being bent rearwardly toward the nut section and passing through the end holes of the plate; and an actuating screw threadedly received in the nut section and having a pilot tip received in the central hole of the plate.

Abstract: A stamped and welded clamp for pipe or tube joints having a plurality of arcuate segments pivotally attached to each other and separable at one location so as to facilitate wrapping about the joint. Each segment forms a Vee shaped recess on its inside face and each is formed from similar pieces projection welded together and having top and lateral reinforcing flanges. A special T-bolt serves to secure and tighten the assembly and employ a T-shaped bolt and which fits slidably into a mating housing having a stepped end-face to serve to restrain the bolt from turning during tightening.

Abstract: A new open end pipe or tube clamp assembly having an exceptionally high strength-to-size ratio which utilizes a U-bolt and a novel saddle member. The saddle is formed by a progressive die of a single piece with no welding and has a top web surface which is severely formed to define a pair of spaced rounded ridges and a depressed central portion achieving high strength and the ridges also serve as nut seats and reduce galling. The side walls of the saddle are centrally depressed to provide narrow contact with the tubing. When the clamp is tightened about a pipe joint high tension stresses force the side members toward each other.

Abstract: A new saddle construction for a U-bolt pipe clamp assembly formed from a single blank of sheet steel without welding and including a tubular cross reinforcement rib of preferably triangular cross section spanning the top of the saddle completely between the two bolt receiving housings. The saddle is formed in a progressive die and is adapted in conjunction with its mating U-bolt to indent a circumferential bead in the pipe sections being joined.