Abstract: A plunger (45) and a piston (46) are displaceably held in a housing (104) for opening and closing a valve path (107) defined in the housing (104), and a single common seat block (44) provided for the plunger (45) and the piston (46) is fixed to the housing (104) and has seat portions (47) each formed from a soft material for respective of the plunger (45) and the piston (46) to be pressed thereon. This arrangement provides a valve device which is simplified in structure and can be manufactured with reduced man-hour.

Abstract: A method is disclosed for creating layouts of a rating plate and a label on which approval marks, rating information, or others are to be printed. The method is executed by using a delivery destination specifications storage unit that stores approval information corresponding to each delivery destination and each product-type, and stores descriptive items of the rating plate and the label, a product-specific information storage unit that stores information of each product, and a computer that controls the delivery destination specifications storage unit and the product-specific information storage unit. The computer identifies a product-type based on an input product-type identifier, extracts the approval information and the descriptive items from the delivery destination specifications storage unit, designs a layout of the rating plate and the label based on the extracted approval information and the descriptive items, and selects the material of the rating plate and the label.

Abstract: A pressure reducing valve 20 is constructed such that a piston 22 is provided within a housing 21 provided with a primary port 28 and a secondary port 30 to form a primary pressure chamber 64 of a primary pressure P1 and a secondary pressure chamber 70 of a secondary pressure P2 which are connected to each other through an orifice 63. The piston 22 is subjected to the primary pressure P1 applied in one direction X1 in the axial direction and the secondary pressure P2 applied in the opposite direction X2 in the axial direction. A spring 23 exerts a force to the piston 22 in the direction X1. A back pressure chamber 55 is kept at the primary pressure P1 to cause the primary pressure P1 to be applied to the piston 22 in the opposite direction X2.

Abstract: To downsize a high-pressure tank apparatus comprising: a high-pressure tank in which high-pressure gas is charged; and a valve mechanism including a regulator valve for reducing the gas pressure in the tank, to prevent damage to the valve mechanism, and to facilitate the handling of the valve mechanism and the like, the valve mechanism is provided at a gas outlet of the high-pressure tank to locate inside of the tank. The valve mechanism includes a capsule fixedly attached to the gas outlet in a gas-tight manner to face the inside of the high-pressure tank. Within the capsule, a shut-off valve for providing and interrupting communication between the inside and outside of the tank by its opening and closing, respectively, and a regulator valve for reducing the pressure of the high-pressure gas in the tank are disposed.

Abstract: ABSTRACT A management computer 21 extracts product type information from a product type data storing unit 23 based on an input product type identifier, and receives information about a selected shipment destination. Then, the management computer 21 extracts a permission type from a shipment destination specification data storing unit 22 based on the product type and a shipment destination identifier. Further, the management computer 21 determines whether or not permission about the permission type has been obtained. When the permission has been obtained, the management computer 21 extracts a permission identifier. The management computer 21 extracts rating information of the product type data based on record items of the shipment destination specification data, and provides an instance format of the rating label.

Abstract: To downsize a high-pressure tank apparatus comprising: a high-pressure tank in which high-pressure gas is charged; and a valve mechanism including a regulator valve for reducing the gas pressure in the tank, to prevent damage to the valve mechanism, and to facilitate the handling of the valve mechanism and the like, the valve mechanism is provided at a gas outlet of the high-pressure tank to locate inside of the tank. The valve mechanism includes a capsule fixedly attached to the gas outlet in a gas-tight manner to face the inside of the high-pressure tank. Within the capsule, a shut-off valve for providing and interrupting communication between the inside and outside of the tank by its opening and closing, respectively, and a regulator valve for reducing the pressure of the high-pressure gas in the tank are disposed.

Abstract: A method of producing a developing roller applicable to a developing device included in an image forming apparatus and capable of carrying a great amount of toner thereon by generating microfields. The surface of a conductive base is covered with a net constituting of conductive fibers and dielectric fibers woven together. The fibers are heated by a heater to melt with the result that conductive portions and dielectric portions appear on the surface of the developing roller.

Abstract: A polyurethane seat pad having a center seat portion and bank portions therearound is molded by using a mold defining a cavity having a center region corresponding to the center seat portion and side regions corresponding to the bank portions, placing collecting vessels of expanded polyolefin in the side regions of the mold cavity, pouring a foamable polyurethane liquid for low hardness foam into the cavity between said collecting vessels, pouring a foamable polyurethane liquid for high hardness foam into said collecting vessels, and causing the foamable liquids to expand, thereby producing a polyurethane seat pad having the collecting vessels embedded therein. The expanded polyolefin is a crosslinked polyolefin foam having an index of surface wetting of at least 36 dyne/cm. The seat pad in which the bank portions have higher hardness than the seating portion and which is fully durable against repetitive loading can be produced to the desired configuration in a stable manner.

Abstract: A speed control method for a numerical control apparatus of a machine tool which includes a rotational axis or axes changing a tool angle relative to a workpiece. The method obtains a distributive shift amount of each rotational axis, at every predetermined period, on the basis of positional data of each rotational axis with respect to start and end points of a shift command and a commanded shift speed; obtains, at every predetermined period, a positional deviation of a tip of the machine tool in a direction of each linear shift axis with reference to the rotational axis, based on a difference between a rotational position of the rotational axis in a next cycle and a rotational position of the rotational axis in a present cycle; for each linear shift axis, adds the positional deviation to the corresponding distributive shift amount, and outputs a resultant value as a corrected distributive shift amount for each linear shift axis; and for each rotational axis, outputs the obtained distributive shift amount.

Abstract: A method of producing a developing roller applicable to a developing device included in an image forming apparatus and capable of carrying a great amount of toner thereon by generating microfields. The surface of a conductive base is covered with a net constituting of conductive fibers and dielectric fibers woven together. The fibers are heated by a heater to melt with the result that conductive portions and dielectric portions appear on the surface of the developing roller.

Abstract: A method for producing a polyolefin foam sheet which includes heating a foamable base sheet comprising a polyolefin resin, a foaming agent, and a resin varnish. The resin of the varnish is selected from the group consisting of rosin, cumarone-indene resin, phenolic resin, alkyd resin, and shellac resin.

Abstract: A method producing a low-density flexible polyurethane foam comprising stirring a starting mixture containing a polyhydroxy compound, a polyisocyanate, a foaming agent and a catalyst to thereby foam the mixture, in which a foaming agent selected from the group consisting of water, formic acid and its salts is used in an amount of at least 10% by weight as water equivalent per 100 parts by weight of the polyhydroxy compound, and the mixture is stirred at 15.degree. C. or below by previously adjusting the temperature of the mixture to 15.degree. C. or below and under a highly catalytic activity.

Abstract: A method of making a foam product including the steps of reacting an isocyanate component with a polyol component and foaming with a foaming agent to form a self-supporting intermediate foam material. The isocyanate component is present in excess of a stoichiometric quantity needed to react with the polyol component. The self-supporting intermediate foam material is then contacted with water and the self-supporting, intermediate foam material is heated to form a foam product, the water reacting with the remaining unreacted isocyanate component. The self-supporting, intermediate foam material formed by the first foaming step is rigid or semi-rigid at room temperature but it can be softened by heating to enable it to be used for deep draw molding in a successive cure molding process without cracking, splitting or being destroyed.

Abstract: A stretchable synthetic polymer composite filament useful for stretchable fabrics, comprises:(A) an axial filamentary constituent;(B) a plurality of composite lobe filamentary constituents consisting of protrudent filamentary segments (B1) outwardly protruding from the axial filamentary constituent (A) in different directions from each other and edge filamentary segments (B2) attached to outside ends of the protrudent filamentary segments (B1);the axial filamentary constituent (A) and the protrudent filamentary segments (B1) consisting essentially of a synthetic thermoplastic elastomer (a), andthe edge filamentary segments (B2) consisting essentially of at least one synthetic thermoplastic low elastic polymer (b),in which filament, when not under tension, the composite lobe filamentary constituents (B) are asymmetric with respect to at least one feature of the location thereof, and cross-sectional configurations and sizes of the protrudent and edge filamentary segments (B1 and B2), about the longitudinal axis

Abstract: Polyol component essentially consists of polyesterpolyetherpolyol containing polyesterpolyol by the weight ratio of 100:0 to 20:80, in which the polyesterpolyetherpolyol is a copolymer of polytetramethyleneglycol (PTMG) and .epsilon.-caprolactone by the weight ratio of 20:80 to 80:20 with an average molecular weight of 1000 to 3000 and the polyesterpolyol is a condensate of adipic acid as a main acid component with an average molecular weight of 1000 to 3000, is reacted with isocyanate component essentially consists of 4,4'-diphenylmethanediisocyanate (MDI) to make a prepolymer with terminal radical of NCO.

Abstract: Polyester conjugate crimped yarns prepared by conjugate spinning(1) an A component substantially comprising polybutylene terephthalate and(2) a B component substantially comprising polyethylene terephthalateat a weight ratio of 30:70 to 70:30 in a side-by-side or eccentric sheath-core arrangement, rendered crimpable by false twisting to a degree of crimpability TC.sub.10 of 8% or more when subjected to a boiling water treatment under a load of 10 mg/de. The polyester conjugate crimped yarn can be obtained by subjecting the conjugate yarn to single-heater false twisting under the conditions which satisfy the following relations:TW.gtoreq.24380/.sqroot.De (i)185+50 [.eta.]B.gtoreq.T.gtoreq.150 (ii)whereTW is the number of false twists (T/m);De is the total denier of the yarn after false twisting;T is the temperature in 0.degree. C. of the false twister heater;[.eta.]B is the intrinsic viscosity of the B component.

Abstract: A conjugate filamentary yarn, which is prepared from composite components respectively comprising thermoplastic elastomer and non-elastomeric polyamide or polyester, and each of the individual constituents has a cross section of a compressed flat shape like a cocoon or oval, is provided. Hereby, a highly stretchable crimped elastic yarn, in which stretchability arising from crimp and rubber-like elasticity resulting from elastomer are utilized to the utmost, is made available with economy.

Abstract: A thermally improved polyester weft yarn is provided by melt-spinning a blend of a polyethylene terephthalate polymer and a small amount of polymer having a glass transition temperature of at least 10.degree. C. higher than that of the polyethylene terephthalate polymer. The yarn has a break elongation of 70% to 200% and a dry heat shrinkage of +5% to -2%, and is capable of withstanding a severe heat-treatment, for example, at 245.degree. C. for 2 minutes during dipping and curing process of a tire cord fabric comprising the same. Even after such heat-treatment, the yarn shows a residual break elongation of more than 60%. Thus, the weft yarn extends uniformly, without breakage, to a toroidal shape during a tire building process, keeping warp cords at a equi-distance relation. A tire cord fabric comprising the weft yarn of the invention finds its use as the carcass in the form of single ply in a radial tire.

Abstract: A moisture- and heat-resistant flexible polyurethane foam, which is free from lowering of the foam hardness due to moisture absorption during or after the production of the foam under a high temperature and high humidity condition and free from development of scorch during the production of the foam, can be obtained by adding an amino acid or an amino acid analogous compound to a raw material mixture, and foaming the resulting mixture.

Abstract: Flexible urethane foams having a low density and capable of preventing spontaneous combustion during production and storage are produced by compounding 5.0-12.0 parts by weight based on 100 parts by weight of polyhydroxylcompounds, of water and not less than 0.1 part by weight of aromatic amine antioxidant, further preferably not less than 0.01 part by weight of phosphorous acid triesters in the usual combination of polyhydroxyl compounds, polyisocyanates, water, catalysts, surfactants, foaming agent and other additives.