The utility model relates to a solar energy heat-collecting unit which is composed of a tank body, a heat collecting plate core, etc. The utility model is characterized in that the length of the heat collecting plate core [1] is the length of the box body 2/5-4/5. A piece of transparent material plate [2] with certain geometric shape is arranged at the empty point of the lower collector pipe and t...

PURPOSE:To simplify an equipment and efficiently refine crude oil by distilling and separating a naphtha fraction in the crude oil, then catalytically desulfurizing the resultant residue with a desulfurization catalyst, further distilling the desulfurization product and separating the desulfurized residue into respective products. CONSTITUTION:For example, crude oil is treated in a reserve distill...

A method of mixing micro and macro fibers into a polymer matrix and products made thereby are provided. In the illustrated method, a micro reinforcing polymer (16) is mixed with an elastomeric base polymer (14) and preformed macro fibers (12) are added thereto. In one embodiment, the micro reinforcing polymer forms micro fibers in a resulting elastomeric matrix which is interspersed with macro fib...

PURPOSE:To make a power line to not produce a large impedance by dividing one lead having the largest width among others into two parts at a position between a mounting section and opening section and electrically connecting the outer and inner lead sections of the widest lead to a conductor layer on the rear surface of a substrate. CONSTITUTION:Numerous leads 20 are formed on a film-like base mat...

The ethylene/pentene-1 copolymer composition of the present invention comprises an ethylene/pentene-1 copolymer satisfying specific requests, and a high-pressure polyethylene, polyethylene having a density of greater than 0.935 or low crystalline alpha -olefin random copolymer. This composition is excellent in transparency, moldability, heat sealing property at low temperature and tear property, ...

A power transfer device for four-wheel drive in combination with a power transmission comprises a transfer casing detachably secured at one side thereof to the transmission casing, first and second inner casings respectively assembled within the transmission and transfer casings in a coaxial relationship, a first ring gear integral with the first inner casing and in mesh with an output gear of the...

PURPOSE:To efficiently connect a semiconductor device without edge short- circuit by forming an insulating film on the surface of a semiconductor wafer on a bump side in the state of the wafer, etching to the intermediate of the film thickness, and allowing the end of the bump to protrude upward from the insulating film. CONSTITUTION:After bumps 3 are formed on the pad electrode 2 of a silicon sub...

R-(+)-N-propargyl-1-aminoindane of formula (I) and its pharmaceutically acceptable acid addn. salts are new. (I) is prepd. by reacting R(-)-1-aminoindane with propargyl bromide or chloride in the presence of base (and opt. of solvent), then (I) is isolated by e.g. chromatography, distn. or selective extraction. The racemic starting material can be used instead and (I) then recovered by fractional ...

PURPOSE:To reduce the rotating speed noise and kNz sound by a method wherein a signal synchronizing with the rotating speed of a fan is detected, and a signal having an antiphase to the fan rotating noise is produced and radiated as sound through a speaker equipped on an outdoor unit. CONSTITUTION:A sensor 4 detects the rotating speed of an air fan 2 and outputs a signal to an outdoor unit of an a...

Neuraminic acid derivs. of formula (I) and (Ia) and their salts are new. A = O, S or C in (I) and N or C in (Ia). R1 = COOH, P(O)(OH)2, NO2, SOOH, SO3H, tetrazol, CH2CHO, CHO or CH(CHO)2. R2 = H, OR6, F, Cl, Br, CN, NHR6, SR6 or CH2X. X = NHR6, halo or OR6. R6 = H, 1-4C acyl, linear or cyclic 1-6C alkyl (or a halo substd. analogue), allyl or aryl (opt. substd. by halo, OH, NO2, NH2 or COOH. R3, R3...

A method and apparatus is disclosed for powder coating the interior surface of a heated mold cavity. Electrostatically charged powder is sprayed upwardly onto the interior surface of a mold surrounded by a mask. The mask includes a shield located adjacent to but spaced from the shear edge of the mold. Additionally, the mask includes a vacuum duct located beneath the shield. While air is drawn into...

A preheater for cullet is disclosed, in which hot gas coming from a hot supply duct can be passed through the cullet while yielding heat to the latter and can be carried away through a hot gas exhaust duct. The cullet is guided between guiding walls forming a cullet shaft and permitting gas entry as well as gas exit. Means are provided for repeatedly moving at least one of the guiding walls (23, 2...

The present invention relates to a process for inhibiting corrosion of an existing steel material built in an inorganic material by applying an aqueous solution of an inorganic salt, an aqueous solution of a water-soluble silicate compound and a cement composition having corrosion-inhibiting effects on the surface of the inorganic material.

The circuit arrangements for modifying the dynamic range of signals, particularly compressors and expanders for use in noise reduction compander systems, having a plurality of characteristics so superposed that, as dominant signal components appear, hidden characteristics are revealed and become active (LF & HF FIXED BAND, LF & HF SLIDING BAND). The emergence of characteristics can also be describ...

PCT No. PCT/EP91/01010 Sec. 371 Date Feb. 9, 1992 Sec. 102(e) Date Feb. 9, 1992 PCT Filed May 31, 1991 PCT Pub. No. WO91/19722 PCT Pub. Date Dec. 26, 1991Alkyl glycosides are produced by direct synthesis from higher monofunctional alcohols and powder-form glycoses, particularly anhydrous glucose and/or glucose monohydrate, in the presence of acidic catalysts at elevated temperatures, the interior ...

In the process proposed, the crude reaction products of the alkyl glycoside synthesis are bleached by kneading an oxidation agent into the material, from which most of the excess fatty alcohol has been removed and which contains only a limited amount of water, at a high enough temperature to ensure the workability of the reaction mixture. A suitable temperature range is that from about 50 to 150 ...

A construction kit for horizontally and vertically sliding window assemblies in which each window includes a sash. A meeting rail is connected to each sash and includes a slot at each of the inner and outer surfaces of the meeting rail. Weather stripping is fitted into the slot at outer surface of the meeting rail and is wrapped around the end of the meeting rail and secured within the slot at the...

Low pH granular laundry detergent compositions contain a low level of chlorine scavenger, preferably an ammonium salt. The compositions minimize fading of pH-sensitive and chlorine-sensitive fabric dyes during laundering.

PURPOSE:To effectively and uniformly heat a cavity part, by surrounding the outer periphery of a cavity die made of a sintered ceramic with a metallic mold made of a W alloy, and supporting the rear side the metallic mold and the die with a die plate. CONSTITUTION:One or more sets of cavity dies 16 and 17 provided with the cavity surface corresponding to the lens surface of a glass lens are insert...