Abstract: A coffee puff snack and a method of manufacturing the same, which, are provided, in which the snack does not lack characteristic coffee flavor that is uniformly spread over its surface and inside, and also can be shaped directly in a single working process. The coffee puff snack is a product which is manufactured through a process of feeding mixed materials of roasted comminuted coffee bean grains, other grains, and moisture added when necessary, into an extruder, pressurizing and heating for gelatinization, puffing, shaping, and drying.

Abstract: In an ink ejection device, second grooves having a width larger than the width of first grooves which are formed in a piezoelectric ceramic plate are formed on the end surface of the piezoelectric ceramic plate. A step portion is formed at an intersection portion between each of the first groove and each of the second grooves because the width of the second groove is larger than the first grooves. By depositing a conductive material from two directions above and to one side of the piezoelectric ceramic plate, driving electrodes and non-ejection channel lead wire electrodes are formed in the first grooves and on the inner surfaces of the slits by a shadow effect of the side walls on the second grooves.

Abstract: Inkjet printer using opposing walls made of piezoelectric material which oscillate during a print mode at a level sufficient to eject droplets of a disperse-system ink contained in an ink chamber through a nozzle and during a redispersion mode at a level sufficient to disperse cohered and sedimented pigment particles into a substantially homogeneous condition throughout the dispersion medium of the disperse-system ink in the ink chamber, but insufficient for ejecting the ink through the nozzle.

Abstract: A liquid-drop ejection device having a plurality of ejectors each having a variable-capacity ink channel. The capacity of the ink channels is variable to generate sufficient pressure to thereby eject ink in the ink channels from nozzles communicating with the ink channels onto paper or the like. The ejection device further comprises a piezoelectric transducer having a plurality of walls for separating the ink channels from one another. The walls have drive electrodes formed on upper or lower portions. The upper portions of the walls are narrower in width than the lower portions. A method of forming the ejection device comprises a first step of forming grooves including portions for receiving drive electrodes, a second step of forming the drive electrodes in the grooves and a third step of further forming the grooves to provide additional portions having widths different from the portions of the grooves formed in the first step.

Abstract: A compressor includes a passage in the sidewall of the cylinder for directing compressed gas against circumferential surfaces of piston rings. The pressure of the gas from the passage counteracts the pressure of gas between the piston ring groove and the piston ring, and urges the piston rings inwardly. The force with which the piston ring is urged into engagement with the cylinder walls is lessened, thereby reducing wear of the piston rings. The arrangement is especially useful for compressors having piston rings formed of low friction polymeric materials, such as fluorine-containing polymers.

Abstract: An ultrasonic motor uses a piezoelectric transducer for effectively transmitting vibration energy and achieving high output. The piezoelectric transducer comprises elastic members, first and second piezoelectric elements, electrodes, and ceramic insulators inserted between the electrodes or between the electrodes and the elastic members. The first and second piezoelectric elements excite the vibration surfaces of the elastic members to vibrate in two modes and to generate approximate elliptical vibration by synthesizing the two vibration modes. The electrodes are provided for applying alternating current signals to the first and the second piezoelectric elements. The first and second piezoelectric elements are polarized such that they cause shear vibration in the same direction. The piezoelectric transducer is fixed in a motor case via a fixing plate. A rotor is provided in such a position as to contact the vibration surface of one of the elastic members.

Abstract: A device for dispersing fine particles in the agglomerated state comprises a body, a fine particle channel provided in the body and terminating in a spout in the form of a slit, and a clearance provided in the body, inclined downstream with respect to the fine particle channel and communicating with the fine particle channel for emitting a gas into the fine particle channel. Since the spout is in the form of a slit, a large amount can be simultaneously dispersed without losing the dispersing performance of the single hole type dispersing device. When a plurality of such dispersing devices are attached to the combustion gas passage forming wall of a furnace and arranged so that the more upstream they are disposed, the greater is the throw of the reactant-containing gas emitted therefrom, the reactant is diffused in the combustion gas and uniformly distributed.