Miller Pipeline Corporation

Insertec Systems, Inc.

Jesse W Cotherman

Richard L Smith

Luther W Martin

John B Mefford

Bob G Scott

A pipe slitter comprises a base for fixing the slitter to a pipe to be slit thereby. The base includes a pair of end plates for mounting transversely of the pipe and a carriage guide for coupling the end plates to each other. The carriage guide extends longitudinally of the pipe. The carriage guide movably supports a first carriage. A second carriage movably supports a slitter blade. The second carriage is movably supported on the first carriage for movement of the slitter blade longitudinally and transversely of the pipe.

Window cutter for gas service tie overs and tie-over method

An apparatus is provided for handling a pipe to be used in a pipeline replacement operation or the like. The apparatus includes upper and lower semicircular pipe-gripping sections slidably received on a base and drive pistons connected to the lower pipe-gripping section for moving the pipe-gripping sections from a pipe-releasing position to a pipe-gripping position and then to extended positions in which the gripped pipe has been moved axially with respect to the base. The apparatus also includes a collar affixed to the base for receiving a pipe from the pipe-gripping sections. The collar includes offset cams movable between a first position allowing axial movement of the pipe in an axially forward direction and an axially rearward direction and a second position allowing movement only in the axially forward direction.

Growing community of inventors

Camby, IN, United States of America

Jesse W Cotherman