Aerating pumps for aquaria; Apparatus for aerating water; Parts for pneumatic blow guns, namely, inflator tips, inflator valves, valve adapters, nozzles, nipples, couplers, connectors and pivots; Pneumatically operated tire inflation machine; Pond and water garden aeration systems comprising water pumps, air compressors, air blowers and a finned wheel for pressurizing and aerating ponds and aquariums; Power-operated lawn aerators being machines; Shaft bearings for vacuum pumps; Shafts for pum...