Dover Corporation

Bernard Welding Company

Bernard Welding Equipment Company

Valgene E Raloff

Glen A Jones

Christopher Haczynski

Frank J Britto, Jr

An apparatus for welding a workpiece comprises a body tube having a tapered portion defining a first angle, and an end fitting releasably connectable with the body tube and having a tapered portion defining a second angle. The tapered portion of the body tube is releasably connectable with the tapered portion of the end fitting. The first angle differs from the second angle by a distance sufficient for facilitating manual separation of the tapered portion of the body tube from the tapered portion of the end fitting. A liner has a first portion disposed within the end fitting and a second portion disposed within the body tube. A connection member operatively releasably connects the first portion of the liner with the second portion of the liner. A member is disposed on the body tube or the end fitting for releasably connecting the body tube to the end fitting. A positive stop member is formed the body tube or the end fitting for positively retaining the member on the body tube or the end fitting.

Electric arc welding gun

An electrical cable connector for releasably electrically connecting ends of an electrical cable comprises a female element coupled to one end of the electrical cable, and a male element coupled to another end of the electrical cable. The male element is releasably connectable with the female element. A locking groove is disposed on one of the female element and the male element. A screw is removably disposed on another one of the female element and the male element. A cam surface is located on the screw and is engagable with the locking groove such that the cam surface cams along the locking groove responsive to rotation of the female element relative to the male element to releasably connect the female element with the male element thereby electrically connecting the ends of the electrical cable. A slot is operatively associated with the locking groove. The slot is contractible responsive to camming of the cam surface along the locking groove to facilitate releasable connection of the female element with the male element. The slot is offset about 45 degrees counterclockwise from a latitudinal midline of the one of the female element and the male element.

Quick connect electrical cable connector

A gas metal arc welding gun includes a power cable in which the power conductors are asymmetrically distributed in a crescent between a gas conduit and a sheath in order to improve flexibility of the power cable. The welding gun includes a head assembly which includes a head that defines an internal annular ridge between a contact tip and a free end of an electrode liner. This annular ridge serves as a stop for the contact tip, as a centering guide for the electrode liner, and as a shield to protect the electrode from welding spatter. The welding gun includes a two-piece handle which includes a tongue and aperture guide at one end, and an interlocking flange guide at the other end. The two guides restrict movement between the two housing parts to axial movement, and a snap ring locks the two housing parts in a desired assembled position.

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Grant Park, IL, United States of America

Valgene E Raloff