摘要:
Maintenance of a wireless base station can be easily performed even when a wireless base station is installed on an electric pole. A maintenance terminal for communicating with a maintenance unit in the wireless base station through a wireless link is prepared for the wireless base station. The maintenance unit receives maintenance information and transmits the maintenance information received to the maintenance terminal, which is monitored by an operator. Also, the maintenance unit receives a control data from the maintenance terminal and controls a circuit operation of the wireless base station.
摘要:
An apparatus for cooling preformed articles, which is capable of very effectively cooling the preformed articles and is, further, capable of sufficiently suppressing or preventing the preformed articles from being locally damaged as a result of coming in contact with each other as they are conveyed neighboring one another in a state of not yet fully cooled. A spray is blown onto the preformed articles 34 conveyed passing through a predetermined conveyer passage 42, a cooling liquid is blown next thereto, and a gas stream is further blown thereto.
摘要:
An ink-jet head includes a head portion having a plurality of head segments and an ink feeding portion, where ink is supplied such that pipes each have one end connected to the head portion and the other end connected to one of ink feeding paths of the ink feeding portion. The pipes are held by elastic ring-shaped members that are further sidewise held by rigid ring-shaped members and vertically sandwiched between the ink feeding paths and an upper end portion of the head portion.
摘要:
To provide a preform, a bottle and a preform molding apparatus capable of preventing lowering in the mechanical strength of a preform, reducing the amount of a resin material, as well as improving productivity.A preform mold 1e used in the preform molding apparatus has a mouth neck part mold 2, a body part mold 3e and a core mold 163, and the body part mold 3e has, on the outer edge of the upper surface of a cylindrical protrusion part 31e, an annular protrusion 33 which controls the moving direction of a solidified film 118 and a solidified film 117 which have been peeled.
摘要:
A feed-through for feeding electric power to a submerged pump installed in a tank for cryogenic liquefied gases such as LNG and LPG. In the feed-through, a bushing made of an insulating material is inserted in the bushing insertion hole of a flange, and a conductor is inserted in the hollow part of the bushing. A gap between the flange and each end of the bushing insertion hole and a gap between each end of the bushing and the conductor are sealed airtight by seal members. A through-hole is formed in the wall of the bushing, and a space part communicating with the through-hole is formed in the flange. The pressure in the space part of the flange is detected by a pressure detector.
摘要:
When compression molding is performed continuously, lumps of molten synthetic resin (drops), which are supplied by extrusion, are continuously, accurately, and rapidly inserted into plurality of compression molding dies which are rotatingly movable. A method and device for continuously supplying drops into female moldings which are rotatingly movable for manufacturing moldings, wherein synthetic resin in molten condition extruded from an extrusion opening is cut by a cutter attached to a holding mechanism to form the molten resin into drops in a determined quantity, the drops are held and conveyed by the holding mechanism, and the drops are forcibly inserted and supplied into the concaves of the female moldings. At that time the holding mechanism on the rotary-and movable type drop supply is made to approach the rotating molding die and the rotation path of the holding mechanism is made to overlap with that of the molding die within a determined area to make the movement of the holding mechanisms follow that of the molding die.
摘要:
A method of producing a multilayered substrate having: a first face being provided with pads bondable to electrode terminals of a semiconductor element, and a body containing a plurality of wiring line layers and insulation layers successively formed from the side of the multilayered substrate at which the face for mounting a semiconductor element is located, wherein the final insulating layer forms provides a second face of the multilayered substrate. The successive wiring line layers are connected by vias, and the second face has external connection terminal pads. The pads on the first face are formed on a metal sheet, a first layer of insulating material is formed on the metal sheet so as to cover the pads formed thereon, holes are formed through the insulating material to expose the end face of the pad, and a patterned metal layer is formed to provide a layer of wiring lines and vias connecting the pads with the wiring line on the layer of insulating material. Subsequently, layers of insulation material are formed to cover the layers of wiring lines, where vias are formed in the insulating material layers, and then patterned metal wiring line layers and filled vias are formed, until the predetermined number of sets of an insulation layer and a wiring line layer is obtained. The metal sheet is then removed.
摘要:
A multi-layer circuit board comprises: an insulating layer having upper and lower surfaces thereof, and wiring patterns arranged on the upper and lower surfaces of the insulating layer. A ferroelectric layer has a dielectric constant larger than that of the insulating layer and has upper and lower surfaces. The ferroelectric layer is arranged in the insulating layer in such a manner that the upper and lower surfaces of the ferroelectric layer coincide with the upper and lower surfaces of the insulating layer, respectively. A pair of electrode films are formed on the upper and lower surfaces of the ferroelectric layer, respectively, to define a capacitor incorporated in the multi-layer circuit board.
摘要:
A feed-through for feeding electric power to a submerged pump installed in a tank for cryogenic liquefied gases such as (LNG) liquefied natural gas and (LPG) liquefied propane gas. In the feed-through, a bushing made of an insulating material is inserted in the bushing insertion hole of a flange, and a conductor is inserted in the hollow part of the bushing. A gap between the flange and each end of the bushing insertion hole and a gap between each end of the bushing and the conductor are sealed airtight by seal members. A through-hole is formed in the wall of the bushing, and a space part communicating with the through-hole is formed in the flange. The pressure in the space part of the flange is detected by a pressure detector.
摘要:
An apparatus for feeding a molten resin is operated for extended periods of time maintaining stability without permitting volatile components of the molten resin to adhere on the surfaces of conveyer means. An extruder in the apparatus for feeding the molten resin to the compression-forming machine has an extrusion unit which discharges a molten resin through an extrusion opening of an extrusion nozzle. An air injection nozzle for injecting the cooling gas is provided along the outer circumference of the extrusion nozzle, and the cooling gas is blown onto the surface of the molten resin extruded from the extrusion opening to cool the surface of the molten resin.