Abstract: The present invention defines a system (200) for dispensing disposable cleanroom wipers. The system provides a housing (202), within which a supply of cleanroom wipers (204) is stored. A loading assembly (206) is disposed on or within one wall of the housing, for loading the cleanroom wipers into the housing. An access portal (224) is disposed on or within one wall of the housing. A retrieval assembly (208) is also disposed on or within one wall of the housing. The retrieval assembly comprises an actuating member (210) and a retrieval member (212), and is configured such that as the actuating member is asserted, the retrieval member engages and grasps a single cleanroom wiper (220) from the supply of cleanroom wipers, and moves that single cleanroom wiper into immediate proximity with the access portal.

Abstract: When explosive fuels such as hydrocarbons are pumped into or out of a barge or tanker, a metallic conduit having an insulated flange therein is typically connected to the barge. The method of this invention involves connecting the barge to the earth through a barge-grounding cable, connecting the metallic conduit to the earth through a conduit-grounding cable, whereby a grounding test circuit is established with a current source connected between the earth and the grounding cables. A flange resistor is connected across the insulated flane to form a flange circuit. The currents flowing through the grounding cables are being continuously monitored in the grounding circuit to determine the presence of a broken connection or of an ineffective electric contact. A continuity test is also continuously being made of the flange insulation in the flange.