Crawford Fitting Co.

Emery J Zahuranec

James C Musil

A gripping and sealing or coupling device particularly useful for heavy-walled tubular members includes a body member having first and second counterbores cooperatively receiving first and second ferrules therein. Radial expansion of the first ferrule on makeup of the device is limited by a cylindrical radial flange on the end of the ferrule and by radially dimensioning the first counterbore so that it is substantially less than a minor diameter of the threads of an associated coupling nut or on the coupling body. The holding forces of the ferrules is enhanced by limiting radial deformation while disassembly and reassembly of a coupling arrangement is readily facilitated.

Coupling device for heavy-walled tubular members

Deburring tool for tubes or the like

A gripping and sealing or coupling device particularly useful for heavy-walled tubular members includes a body member having first and second counterbores cooperatively receiving first and second ferrules therein. Radial expansion of the first ferrule on makeup of the device is limited by radially dimensioning the first counterbore so that it is substantially less than a minor diameter of the threads of an associated coupling nut or on the coupling body. The holding forces of the ferrules is enhanced by limiting radial deformation while disassembly and reassembly of a coupling arrangement is readily facilitated.

A holder and saw guide device for an elongated tube or rod type workpiece includes V-shaped support areas accommodating various size workpieces in a first cavity. A gripping member extends into the first cavity for positioning in a gripping relation with the workpiece along a first concave surface of the gripping member. A second concave surface disposed on an opposite face of the gripping member presents a reversely-curved configuration. The second concave surface cooperates with a stem which is adapted for selective axial shifting movement. The gripping member is biased toward an open position facilitating installation and removal of the workpiece. A pair of parallel walls are disposed in generally normal relation to the longitudinal axis of the workpiece. These walls advantageously include hardened wear plates which line a guide structure for a cutting blade. A mounting member facilitates securing the device to an associated surface.

Workpiece holder and saw guide device

A deburring tool for reaming inner and outer diameter end portions of tube and pipe-like workpieces includes a cast housing having an integrally formed conical support member therein. The conical support member has a base portion disposed adjacent one end of the housing and an apex area spaced toward the other end of the housing. Radially disposed apertures having a predetermined width dimension divide the conical support member into a plurality of wedge portions. A blade assembly is comprised of a plurality of separate blades which are fixedly secured to each other in a pattern identical to the pattern of apertures in the support member. The blades have a thickness dimension which is greater than the width dimension of the apertures in order that the blade assembly will be retained in the conical support member by a press-fit relationship established between the blades and apertures. Each blade includes first and second cutting surfaces protruding axially from the support member and adapted for deburring engagement with the inner and/or outer diameter end portions of an associated workpiece.

Growing community of inventors

Novelty, OH, United States of America

Emery J Zahuranec