Pipe joints or couplings – End to side or plate – Saddle-type clamp
Patent
1979-07-19
1981-03-31
Callaghan, Thomas F.
Pipe joints or couplings
End to side or plate
Saddle-type clamp
137318, F16L 4104
Patent
active
042589410
ABSTRACT:
A service clamp for use as a fitting in tapping a hole in a main pipe and/or for supporting a branch pipe, the service clamp being particularly adapted for use when the main pipe is plastic such as polyethylene (PE) or polyvinyl chloride (PVC) although it may be used with pipe made from other material including metal pipe. The service clamp comprises two saddle parts for encircling the main pipe, one of the saddle parts carrying a branch pipe extension with a throughbore, and each saddle part carrying, prior to assembly of the service clamp, at least one of the screws or bolts used during assembling the clamp about the main pipe. Additionally, one of the saddle parts is provided with a slot communicating with an unthreaded aperture in one of the flange ends of the saddle part, the slot being large enough to receive the head of the bolt or the screw carried in the other part so that the first and second saddle parts can function as a hinge clamp when assembling about the main pipe and then both bolts or screws can be tightened to uniformly apply a load to the sealing means of the service clamp.
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Superior Utility Products, Inc., 1973, "Brass Tapping Saddle for Plastic Pipe by Superior, Style 34," 2 pages.
Callaghan Thomas F.
Mueller Co.
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