Abstract: A multicolor writing instrument consists of two individual writing implements which respectively contain a ball point pen refill. The implements are identical in construction with each having an elongated grip portion and a shoulder extending laterally from the end opposite a writing stylus, the shoulders being provided with recesses for respectively and sealably receiving the writing stylus of the other implement when the two implements are connected together in a storage condition.
Abstract: An article is coated with alternate microscopically thin layers of titanium nitride and gold alloy using a cathodic sputtering process to provide a microlaminated coating having the color and brilliance of a much thicker coating of the gold alloy while being more resistant to corrosion and scratching.
Abstract: A two-part barrel sleeve includes an internal spring finger which rides in a spiral groove in the combined ink reservoir and barrel of a ball pen, the spiral groove having a detent at its rear end to provide a snap-action as the barrel sleeve is retracted to its rearmost position exposing the writing tip for normal use.
Abstract: A pocket clip is attached to the tubular barrel of a writing instrument and the rear open end of the barrel is closed by pressing a pocket clip part over the rear end of the barrel and pressing an integral plug portion of the pocket clip part into the opening at the rear end of the barrel.
Abstract: A ball-point pen, which is retractable to about half its size when not in use, includes a substantially cylindrical housing having a retractable, plastic writing cartridge body therein. A plurality of push-button actuated, spring biased gripping elements engage the plastic body to retain the body in a retracted or extended position.