| Patent Number |
Title Of Patent |
Date Issued |
| 5979202 |
Method and apparatus for making pipe line steel grooved-end fittings |
November 9, 1999 |
| A method for making a grooved-end pipe fitting from standard pipe includes the steps of bending length of pipe on a press mandrel to form a curved pipe segment with an oval cross section and further working the curved pipe segment in a die to produce tangent end portions. The die cavity |
| 5149144 |
Pipe branch fitting and branch appliance therefor |
September 22, 1992 |
| An improved pipe branch fitting for use with a pipe having a pre-cut hole is disclosed. The branch fitting has a cylindrical body freely slidable along the pipe to a point where the hole is pre-cut. On one side, the cylindrical body carries an internally threaded boss into which a modifi |
| 5031755 |
Pipe line termination system |
July 16, 1991 |
| A novel terminal outlet fitting for use in sprinkler systems with a standard split-sleeve sealing coupling engaging the fitting and a standard grooved end pipe, in order to provide an oriented pressure outlet to which a sprinkler head may be fitted. The fitting provides a high efficiency |
| 4391458 |
Pipe coupling with gasket locating means |
July 5, 1983 |
| A side-outlet pipe coupling having a split housing surrounding split-ring gasket means is provided. Lugs formed at the free ends of the gasket means position said gasket means within the coupling housing such that abutting free ends of the gasket means are off-set from the plane of split |
| 4350350 |
Self-compensation gasket for grooved end pipe couplings |
September 21, 1982 |
| A self-compensation gasket for grooved end pipe couplings for use in sealing the joint between the pipe ends. An "immediate" seal at the pipe end gap serves as a barrier to possible entry of solids into the internal working section of the gasket. Compression pads on the outside diameter |
| 4073513 |
Pipe branch fitting |
February 14, 1978 |
| A pipe branch fitting has a cylindrical body freely slidable along the pipe to a point where a hole is pre-cut in the pipe. On one side, the cylinder carries a screw-threaded tubular insert on which the branch is to be connected. A gasket between the insert and the pipe gives a seal as t |
| 3999785 |
Mechanical pipe outlet |
December 28, 1976 |
| Branch pipes are secured to main pipes mechanically by means fitted about the main pipe at a hole in the pipe wall. Two sections of the outlet contact the main pipe around its entire circumference, and either or both sections can have a spigot for fitting within a hole through the pipe w |
