Abstract: A wheel having a hub and a tire mounted on the hub in which the hub is molded with a central bearing surface for an axle and a circumferential rim for a tire, and the tire is molded with a circumferential tread having a side wall at one edge and a formed lip at the opposite edge. The hub rim is molded with notches on its opposite edges and is allowed to become dimensionally stable after molding while the tire is, after being molded, joined to the hub by passing the formed lip over the hub rim to engage one of the hub rim notches for securing the tire to the hub and allowing the tire to cool and become dimensionally stable while on the hub.

Abstract: A tamper evident closure for a container having a plastic base affixed to the container open end and a dispensing controlled rotor carried by the base and so constructed as to make it very evident that tampering may have occurred by the presence of visible damage done to the rotor through forcible tearing or breakage of the rotor.

Abstract: A connector for joining the ends of flexible hoses comprising a one-piece moldable plastic body of light weight construction with hose engaging barbs at each end and supporting ribs in the midspan between the end barbs for sustaining the wall of the body against internal pressure, the one-piece body being free of the requirement to seal or sonically weld parts in final assembly.