Abstract: A powder supplying apparatus supplies, for example, a powder spraying apparatus with fine powder particles such as of ceramics having particle sizes of several .mu.m to 10 .mu.m at an extremely small rate of several grams to several tens of grams per hour, in the form of micronized discrete particles dispersed at a high degree of uniformity. The powder spraying apparatus is capable of spraying the fine powder particles on an object surface with a high degree of uniformity of distribution. The disclosed apparatus is used typically in uniformly spraying the above-mentioned fine powder particles which serve as spacers between a pair of transparent substrates of a liquid crystal display panel, for the purpose of maintaining a uniform and constant gap to be filled with a liquid crystal between these transparent substrates.

Abstract: A method of spraying a powder onto a substrate includes the steps of mounting the substrate in a fixed position; mounting a spray nozzle such that an outlet end thereof confronts the substrate; moving the spray nozzle such that a locus on the spray nozzle moves along a zig-zag pattern; and spraying the powder from the spray nozzle onto the substrate during the movement of the spray nozzle. The step of mounting the spray nozzle includes mounting the spray nozzle to a first oscillation link, and mounting the first oscillation link to a reciprocable slider. The step of moving the spray nozzle includes oscillating the first oscillation link relative to the slider, and reciprocating the slider during oscillation of the first oscillation link. The step of mounting the spray nozzle further includes mounting the slider to a second oscillation link. The step of reciprocating the slider includes oscillating the second oscillation link about a pivot point.

Abstract: A powder supplying apparatus supplies, for example, a powder spraying apparatus with fine powder particles such as of ceramics having particle sizes of several .mu.m to 10 .mu.m at an extremely small rate of several grams to several tens of grams per hour, in the form of micronized discrete particles dispersed at a high degree of uniformity. The powder spraying apparatus is capable of spraying the fine powder particles on an object surface with a high degree of uniformity of distribution. The disclosed apparatus is used typically in uniformly spraying the above-mentioned fine powder particles which serve as spacers between a pair of transparent substrates of a liquid crystal display panel, for the purpose of maintaining a uniform and constant gap to be filled with a liquid crystal between these transparent substrates.

Abstract: A method of coating powder particles includes the steps of circulating an air flow containing the powder particles in a dispersed state therein in a cylinder whose inner wall is wetted with a coating liquid to bring the powder particles into contact with the coating liquid on the inner wall, and drying the powder particles thus coated with the coating liquid. An apparatus for coating powder particles comprises a drying chamber including an inner space for drying powder particles on the surfaces of which a coating liquid is deposited while floating the powder particles by an air flow, a powder-particle feeding device connected to the top of the drying chamber for feeding an air flow containing dispersed powder particles into the inner space through a cylindrical path, and a coating-liquid supplying mechanism for wetting the inner wall of the cylindrical path of the powder-particle feeding means.

Abstract: Disclosed is an user interface with a resistance welding control which provides a visual presentation of character data unlikely to lead misinterpretation on user's part on a frame-by-frame basis using a menu and conversation system and can handle as many welding schedules as there are with a single unit. Memory means stores character data so as to form different frames for predetermined item. In respone to certain user's request, any one of the frame is immediately called upon display means to that the user may enter necessary data of welding conditions associated with the selected item. While being visually presented on the screen, the entered data will be written into the memory means as part of the selected item.