Abstract: A hand-operated cleaning system includes an ON/OFF control unit snap-on mountable onto a pressurized container having a valve stem for delivering cleaning liquid. This control unit includes an outer cap with resilient fingers adapted to snap-grip engage and mount the control unit onto a top rim of the container. An inner cap is mounted within the outer cap for ON/OFF helical turning movement so that turning the inner cap in the ON direction depresses the valve stem for releasing pressurized liquid from its container, and turning it in the OFF direction stops such release. A fluid passageway extends from the valve stem through the inner cap to a length of flexible tubing coupled to the inner cap and extending to a remotely-located, hand-held applicator wand. This applicator wand has a fluid passageway communicating with the flexible tubing for providing a path through the wand to its nozzle end. A valve is positioned in the wand for operation by a button actuator.

Abstract: A remote delivery nozzle assembly is adapted to be releasably connected to a pressurized container to permit delivery of the pressurized contents thereof to a location remote from the container. A cap assembly is connected through a flexible conduit to a wand for delivery of the pressurized contents of the container. Upon seating of the cap assembly on the container, the valve of the container is opened pressurizing the wand through the flexible conduit. The wand includes a flexible membrane which when depressed by finger pressure opens a valve between the pressurized inlet and an outlet passage to deliver the pressurized fluid.

Abstract: A remote delivery nozzle assembly is adapted to be releasably connected to a pressurized container to permit delivery of the pressurized contents thereof to a location remote from the container. A connector assembly flowably connects one end of a delivery conduit to the valve stem of the container while a manually operable valve and nozzle coupled with the other end of the delivery conduit provides remote control of the release of the pressurized contents. The connector assembly comprises a hollow cap which frictionally engages an upstanding, annular rim of the container and completely encloses the valve stem. A connector element extends through the aperture in the top of the cap in aligned relationship to the valve stem, and is secured to the cap by frictional engagement therewith. An O-ring interposed between the connector element and the top of the cap provides a gas tight seal therebetween.

Abstract: Optical components and highly-polished metal surfaces are cleaned with a first composition comprising 1,1,2-trichloro-1,2,2-trifluoroethane, isopropyl alcohol, dimethylformamide and 2-ethoxyethanol; then, while the surface is still wet with said first composition, a second composition, comprising at least about 85% 1,1,2-trichloro-1,2,2-trifluoroethane and containing less than 10 ppm of non-volatile residues, is applied to rinse the surface; and the surface is permitted to dry.