摘要:
An ink container for storing ink and an ink jet apparatus having such an ink container is provided. The ink container has an ink tank providing an enclosed space within an inner wall of the tank. The ink container is filled with inner and outer porous members having open pores for holding ink. The inner porous members are disposed within the enclosed space so as to only contact and press against other inner or outer porous members or both. The outer porous members are disposed within the enclosed space so as to contact and press against the inner porous members and the inner wall of the ink tank. This arrangement of inner and outer porous members within the ink container prevents an uneven compression distribution which occurs when conventional porous members are inserted into ink containers or when ink containers containing such conventional porous members suffer impacts. Further, the porous members can fill the entire ink container regardless of the shape of its interior, thus reducing the amount of non-dischargeable ink and leakage.
摘要:
A storage battery-based DC power supply system with continuous float charging adapted to automatic continuous recharging of storage battery connected to load is disclosed. Selective recharging at the full-charge voltage and float charging voltage is performed in response to the accumulated ampere-hour value of discharge current from the storage battery, when such value reaches a predetermined threshold value set to prevent excessive recharging, which can damage storage battery.
摘要:
A light-quantity control device having a light-quantity control member which moves to change an aperture opening amount. A drive source swings the light-quantity control member in one direction and a spring having a coil part urges the light-quantity control member against the swinging direction of the drive source. A base member having an aperture fixedly supports the drive source and swingably supports the light-quantity control member. The base member has a shaft for carrying the coil part of the spring. The shaft is formed at a position outside the supporting position of the drive source on the base member relative to the center of the aperture.
摘要:
A mobile station sends a speech signal to a radio base station or, in the absence of speech signals, sends back a sync signal from the radio base station. The radio base station detects whether the signal received from the mobile station is a speech signal or the sync signal it sent. If a speech signal is received, it performs usual processing for speech signals or, if the sync signal is received, judges the line quality according to this sync signal.
摘要:
In an exhaust silencing device having inner tubes which are connected to an exhaust pipe connected to an engine and provided with a plurality of through holes, and an outer tube which covers the inner tubes. The occurrence of a whistling sound is prevented while avoiding the use of a sound absorbing material. Recesses are provided on the inner surface of the inner tube, which, together with the outer tube, form an annular expansion chamber.
摘要:
An exposure control apparatus of a camera, wherein a pair of exposure factors that include a shutter speed and a diaphragm value can be manually and independently set. Furthermore, in the exposure control apparatus, an exposure value determined in accordance with the exposure factors can be locked, and one of the exposure factors can be varied, based on the locked exposure value, when the other exposure factor is varied by the associated manual setting means.
摘要:
A PWM inverter system having a sine (low-pass) filter. The sine filter includes a reactor and a capacitor, and is connected to the output of a PWM inverter. The instantaneous current flowing through the capacitor, and the instantaneous output current supplied from the sine filter to a load are detected. An instantaneous voltage command value is corrected on the basis of the detected current values. This makes it possible to limit oscillating waveforms involved in the output voltage of the PWM inverter without using a damping circuit which was connected in parallel with the capacitor in a conventional sine filter. The capacitor of the sine filter may be composed of a plurality of capacitors connected in parallel, and this will serve to further reduce the size of the sine filter. In a parallel operation of a plurality of PWM inverters, a cross current, that is, the difference between an instantaneous output current command value and an instantaneous capacitor current command value is reduced by correcting the instantaneous voltage command value. This makes it possible to share the current assigned to each PWM inverter with high stability.