Abstract: In a fluid polishing method for processing a fine aperture by slurry 7, the slurry is supplied from a cylinder 2a in a slurry flow rate target process until the flow rate increases to a target value of a slurry feed flow rate. When the flow rate reaches the target flow rate, the cylinder is stopped and switched to another cylinder 2b and the operation fluid flow rate of the fine aperture is thereafter measured. In a metering process, to be executed next, a necessary processing time is calculated on the basis of the operation fluid flow rate and polishing is carried out for a necessary processing time by another cylinder 2b. Another cylinder is then stopped and switched and the operation fluid flow rate is measured. In this way, the metering process is repeated until the operation fluid flow rate reaches a predetermined value. In each process, the supply of the slurry is not interrupted.

Abstract: In a fluid abrasive machining method for abrasively machining a fine pore on a work (5) to be machined by supplying a slurry (7) which is an abrasive machining fluid from a supplying device (2) to the work to be machined comprising steps of: supplying the slurry to the work to be machined from the supplying device; measuring a first pressure (P1) upstream in a discharge side of the supplying device; measuring a second pressure (P2) downstream of a measuring point of the first pressure (P1) and at an upstream side of the work to be machined; calculating a pressure difference (dp) between the first pressure and the second pressure; and terminating a machining operation when the pressure difference dp reaches a specific value. A fluid abrasive machining apparatus (100) which can perform the above-mentioned fluid abrasive machining method is provided.

Abstract: In a fluid polishing method for processing a fine aperture by slurry 7, the slurry is supplied from a cylinder 2a in a slurry flow rate target process until the flow rate increases to a target value of a slurry feed flow rate. When the flow rate reaches the target flow-rate, the cylinder is stopped and switched to another cylinder 2b and the operation fluid flow rate of the fine aperture is thereafter measured. In a metering process, to be executed next, a necessary processing time is calculated on the basis of the operation fluid flow rate and polishing is carried out for a necessary processing time by another cylinder 2b. Another cylinder is then stopped and switched and the operation fluid flow rate is measured. In this way, the metering process is repeated until the operation fluid flow rate reaches a predetermined value. In each process, the supply of the slurry is not interrupted.

Abstract: A method of forming a separation groove and a ditch for cutting a thermoplastic resin sheet by a laser beam is performed as follows. A heat-resistant layer made of thermosetting resin is printed on the rear surface of the resin sheet along the line of the ditch to be formed by the laser beam. A laser beam is radiated on the front surface of the resin sheet and scanned along the line of the ditch and the separation groove. The laser beam melts and evaporates resin and forms the ditch and the separation groove. Since the rear end of the ditch is covered by the heat-resistant layer, the resin sheet is not completely separated along the ditch line, while it is separated along the separation groove line. At the final stage, the resin sheet is cut along the ditch line. A flexible circuit sheet for making electrical connection can be easily and cost effectively processed in this laser beam process.

Abstract: A fluidized bead bed includes a mattress having an outer, liquid-impermeable layer to prevent body fluids from passing into a bed tub holding fluidized beads and contaminating the beads. The bed tub includes apertures near its upper edges to exhaust pressurized air from the bed tub.

Abstract: A fluidized bead bed including a conductive filter sheet for dissipating static electricity generated by the movement of the beads in the fluidized state. The filter sheet includes a conductive layer, a superimposed conductive net, or is interwoven with conductive fibers to conduct the static electricity to ground or to dissipate the static electricity as a heat loss or electromagnetic wave radiation.

Abstract: An arrangement is disclosed for reducing the overall effective size of the goods storage and discharging system in an automatic vending machine. The solenoid and transmission mechanism of each goods discharging mechanism are so disposed that the discharging mechanisms of adjacent goods storage shelves may be arranged in a back-to-back relation with the solenoids and transmission mechanisms thereof laterally adjacent each other. The overall size of the vending machine may thus be substantially reduced.