Abstract: An electrode for a plasma arc cutting torch which minimizes the deposition of high emissivity material on the nozzle, reduces electrode wear, and improves cut quality. The electrode has a body having a first end, a second end in a spaced relationship relative to the first end, and an outer surface extending from the first end to the second end. The body has an end face disposed at the second end. The electrode also includes at least one passage extending from a first opening in the body to a second opening in the end face. A controller can control the electrode gas flow through the passages as a function of a plasma arc torch parameter. Methods for operating the plasma arc cutting torch with the electrode are disclosed.

Abstract: A locking arrangement configured to secure portable equipment includes a tubular lock having a pair of locking arms projecting from a face of the lock body. Each locking arm has a shank portion and a wing portion, the wing portion extending from the end of the shank at a right angle thereto. Each wing has a substantially flat surface. The locking arms are disposed adjacent to one another, and in the unlocked configuration, the wings of both arms are in parallel opposition such that their flat surfaces substantially meet. In the locked configuration, the wings are parallel to each other but extend in opposite directions outside the envelope. This opposite orientation of the wing members prevents the lock from being withdrawn through the locking port. Moreover, if the two shanks are seated within a port whose dimensions closely match those defined by the shanks themselves, rotation of the lock will be substantially prevented.

Abstract: A wheeled upright luggage case having oversized wheels for improved rolling movement. The luggage case has a pair of wheels that are oversize in proportion to the body of the case. The oversize wheels are rotatably mounted in fender assemblies disposed on the outsides of the body of the case, so that the oversize wheels do not detract from the cargo capacity of the case. The wheels are mounted to protrude a specified relational distance from the bottom, or the back and the bottom, of the case to permit the case to be rolled while tilted at a wide variety of angles and to easily be pulled up stairs or curbs.