Mueller Co.

William L Hauffe

Joseph L Daghe

Robert E Sands

Carl E Floren

Garrett D Terrill

A pipe clamp for use in encircling a pipe or main as either a pipe repair clamp or a service side outlet clamp. The pipe clamp comprises a flexible metal band made of sheet metal or the like having a gasket liner which seals with a section of the exterior of the pipe, the band being split and made of at least one section and having at least a pair of lugs attached to each of its opposed end portions. Bolts are used to draw the lugs together and cause the band to tightly encircle the pipe. An improved retention of the band ends in the lugs is provided, the lugs being of the type having ductile jaws initially cast in an open position, one of the jaws having a projection thereon and the other jaw having a recess for cooperating with the projection when the jaws are closed on the band end. The cooperating projection and recess are dimensioned to provide a space between the same when the jaws are closed, the space having a first portion of less thickness than the metal band whereby the band is reduced in thickness when the jaws are closed and another portion with a thickness at least as great as the thickness of the band to provide for ease in closing the jaws.

Pipe clamp with improved retaining lugs

A low profile pipe clamp for use as either a repair clamp or a service clamp with a side outlet. The pipe clamp comprises a flexible band, usually of sheet metal with a gasket material on the interior thereof, the flexible band having a pair of opposed looped ends which receive tubular trunnion loading bars. The trunnion loading bars receive at least a pair of T-bolt assemblies, each assembly including one T-bolt and a nut. The T-bolt assemblies are pre-assembled in one of the trunnion bars having apertures therethrough, this trunnion bar being made of a plurality of coaxial elements whereby the T-bolt may be independently pivoted into position during assembly. The other trunnion bar is provided with slots for receiving the head of the T-bolt and is temporarily held against rotation and axial movement in the loop prior to installation of the clamp.

Single and multiple section pipe repair or service clamps

A low profile pipe clamp for use in encircling a pipe such as a main or the like, the clamp being either a repair clamp or a service clamp with a side outlet. The pipe clamp comprises a flexible band, usually of sheet metal with a gasket material on the interior and having at least a pair of opposed looped ends which receive cylindrical trunnion loading bars. At least one bolt extending through the loading bars is arranged to move the trunnion loading bars toward each other to cause the looped ends of the band to draw the flexible band tightly around the pipe. The relationship of the trunnion loading bars to the bolt extending therethrough is such as to give the clamp a use for a wide range of varying outside diameters of a particular size of pipe. Means are provided for retaining the bolt in one of the loading bars prior to assembly of the clamp on a pipe, and also means are provided for frictionally holding the trunnion loading bars in a predetermined position in the looped ends of the flexible band prior to assembly of the clamp on a pipe but yet let the trunnion loading bars rotate relative the looped ends during assembly. The loading bars are capable of removal from the looped ends if it is desired to replace the same.

Single and multiple section pipe repair clamps

A tool for inserting a plastic pipe in a substantially axial direction into a stab-type coupling joint fitting or the like without damaging the exterior of the plastic pipe. The coupling joint fitting may be of the type having means therein for gripping the plastic pipe upon insertion of the same therein and also of the type wherein insertion of the plastic pipe activates closure means in the fitting to open the same and provide service. The means for attaching the tool to the fitting and to the plastic pipe are detachable from the tool whereby other means may be substituted therefor depending upon the sizes of the fitting and the plastic pipe upon which the tool is to be used. The actuating means for moving the attaching means for the pipe toward and away from the attachment means for the fitting is screw operated to provide ease of operation of the tool with a lever system providing a large mechanical advantage.

Growing community of inventors

Warrensburg, IL, United States of America

William L Hauffe