Abstract: An “L-shaped” bushing assembly having a retainer pin sleeve and axle sleeve. An “L-shaped” retainer pin is fitted to the retainer pin sleeve and provides a handle piece that projects through the walls of the bushing assembly and wheel that is maneuverable to retract and release the retainer pin and wheel from a grooved axle. The L-shaped retainer pin and bias spring are alternatively mounted in single and multi-channel slots to facilitate retainer pin mounting and/or containment of the retainer pin at a storage position. The retainer pin sleeve slots and/or a transverse open slot facilitate cooperation of a wheel removal tool with the retainer pin(s).

Abstract: An “L-shaped” bushing assembly having a retainer pin sleeve and axle sleeve. An “L-shaped” retainer pin is fitted to the retainer pin sleeve and provides a handle piece that projects through the walls of the bushing assembly and wheel that is maneuverable to retract and release the retainer pin and wheel from a grooved axle. The L-shaped retainer pin and bias spring are alternatively mounted in single and multi-channel slots to facilitate retainer pin mounting and/or containment of the retainer pin at a storage position. The retainer pin sleeve slots and/or a transverse open slot facilitate cooperation of a wheel removal tool with the retainer pin(s).

Abstract: A durable, single walled plastic traffic or work area delineator barrel. The single walled barrel is molded in a blow molding operation and handle and base rim flange regions of the barrel in one construction include compressed wall surfaces that define hollow, open-cavity pillars or struts that span between the walls. The pillars are constructed by depressing portions of the walls into contact and thermally bonding the materials together. In another construction corners of the base rim flange include recessed indentations and surface corrugations that are aligned to strengthen the rim flange.

Abstract: A durable, single walled plastic traffic or work area delineator barrel. The single walled barrel is molded in a blow molding operation and handle and base rim flange regions of the barrel in one construction include compressed wall surfaces that define hollow, open-cavity pillars or struts that span between the walls. The pillars are constructed by depressing portions of the walls into contact and thermally bonding the materials together. In another construction corners of the base rim flange include recessed indentations and surface corrugations that are aligned to strengthen the rim flange.