The Pipe Line Development Company

John A Spisak

William B Smith

Edward B Smith

Elmer V Rogers Jr

A coupling assembly for mechanically coupling the plain end of a pipe, comprising a pair of standard forged flanges as basic components between which is disposed a wedge ring. One of the flanges is of the slip-on type and has associated with it a conical collet bore for receiving the wedge ring. When tension bolts assembled through the flanges are tightened the wedge ring is driven into the collet bore and tightly radially against the periphery of the pipe to thereby lock the coupling to the pipe.

Collet grip riser fitting

A safety cock for positively maintaining a coupled connection between a fluid delivery conduit and a chamber during fluid delivery to the chamber and for permitting the conduit to be uncoupled when fluid delivery is disestablished. The safety cock comprises a block having a valved passageway therethrough. A handle projects from the valve and prevents uncoupling of the fluid delivery conduit when the valve opens the passageway by blocking the conduit removal path, but permits uncoupling when the valve closes the passageway.

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Avon, OH, United States of America

John A Spisak