Abstract: The photoreceptor cleaning composition is provided which includes a lower alcohol, ultrapure water and a surfactant, 3,5-dimethyl-1-hexyn-3-ol. This cleaning solution is 100% volatile, water-clear, and is found to contain no solids or colloidal matter, in addition to being contaminant- and particulate-free, it is found to leave no detectable residue even if not fully wiped off in a cleaning operation. The most significant property of this photoreceptor cleaning solution is its ability to retard crystallization of the photoreceptor, which has been found to be a major problem with many known photoreceptor cleaning solutions.

Abstract: Method for cleaning liquid developer from upwardly moving support surfaces, such as reuable surfaces used for carrying latent electrostatic images. Surfaces are cleaned by a wiper blade and at least one scraper blade adapted to engage the support surface. The wiper blade acts upon the support surface upstream of the scraper blade.

Abstract: Buffing machine comprising rotary buffing element, internal combustion engine motor for driving the buffing element and fuel tank for liquefied gas with suitable connections to supply fuel to motor.

Abstract: An improved process particularly adapted for cleaning dry particulate matter of a catalyst filter bed without requiring the removal, screening and reinstating of such material forming the catalyst filter bed.

Abstract: Scale particles of vinyl polymer which accumulate on the inner surfaces of the polymerization reactor and are peeled therefrom are removed by placing a net into the reactor through an opening in the reactor and entrapping the particles within the strands of the net whereby the particles are removed from the reactor when the net is withdrawn.

Abstract: A cleaning blade is provided for cleaning residual toner particles and other contaminants from an electrostatic imaging surface comprising a surface having rigid spherical protuberances adapted to be pressed against the imaging surface to form a seal between the blade and imaging surface which retards flow of particles between the blade and imaging surface.

Abstract: Wafer-like articles are inserted through an input port into one of a plurality of slots in a rotatable disc having a slotted periphery. The disc is disposed in a vertical plane between a pair of closely-spaced parallel plates which laterally retain the articles in the slots. The slots advantageously are inclined toward the direction of rotation so that the wafers tend to remain therein as rotation and treating proceeds. The rotating disc urges each article between the plates to an aperture in one of the plates through which one side of the article is exposed to a treating medium, such as a scrubbing brush and detergent solution. Further rotation of the disc brings each article to an aperture in the opposing plate through which another side of the article is exposed to another treating medium of like or different kind.

Abstract: This invention relates to a roller for moving water on and simultaneously drying very large, flat hard surfaces such as tennis courts. The roller has an outer sleeve which is made from a foam whose compression load density and porosity values fall within critical ranges. The roller moves the water in the rolling direction as it simultaneously establishes a moving seal with the portion of the hard surface over which the roller rides.

Abstract: A method and apparatus for removing dew from various surfaces, such as golf greens, is disclosed. The apparatus includes a flexible elongated body, and means for maintaining a first end of the flexible body at a substantially fixed location on the surface as a second end of the flexible body is rotated about the first end. The method disclosed includes moving such a flexible elongated body across such surfaces in a direction transverse to the flexible body, while maintaining the body substantially in contact with the surface to be swept.

Abstract: An appliance is disclosed for dressing the working surface, e.g. tip, of a soldering iron. A housing of chemically-stable material defines a treatment chamber with an access opening through which the tip of a soldering iron is received. The treatment chamber is partially filled by a packing which in the disclosed embodiment includes Teflon shavings carrying a cleaning agent including ammonium chloride. The insertion of a hot iron results in the vaporization of a quantity of the cleaning agent as well as some scrubbing action by the packing with the effect that the tip of the iron is effectively dressed, removing oxides and foreign particles while leaving a coating of liquid solder on the tip at an operating temperature.

Abstract: Liquid developer is removed from support surfaces, such as reusable surfaces used for carrying latent electrostatic images, by blades with relative motion between the surface and the blades. Spreading of the liquid developer upon the cleaned portion of the surface during rest periods is prevented by reversing the relative motion between blade and surface and moving the blade away from the surface before each rest period.