Abstract: A durable oil well pump having fitted ceramic cylinders. Two metal retainers are fitted at two ends of the ceramic liner barrels. A cement or adhesive, which is resistant to pressure and temperature is placed in the annular clearance among the liner barrels, the retainers and an outer tube. There are multiple segmented plunger skirt and ceramic barrels to be fitted around a plunger inner tube. The valve seat outer ring is shrunk on to the ceramic inner ring. The valve ball is also made of ceramic. This pump has resistance to corrosion, temperature and magnetic fields. This pump can prevent liner barrel displacement, increase the period between repair, improve oil production, and reduce the cost of production.

Abstract: A device for the closure and sealing of envelopes and the like. First and second elongated strips of plastic material are foldable upon each other along a narrow longitudinal hinge line. The first strip has a series of locking pins distributed along its length. Each of the locking pins has a weakened base. The second strip is provided with a series of sockets adapted for receiving respective locking pins in locking relation therein. To permit the device to be opened easily when it has been applied to a plastic envelope with the locking pins penetrating orifices formed along the two borders at the mouth of the envelope, at least a part along the length of the longitudinal hinge line is weakened starting from a first end, and each strip is provided, at its first end, with an appendage capable of being held between the fingers of the user.

Abstract: A pallet structure includes a rectangular paper blank folded to define a first side stringer, a second side stringer, and a central stringer.

Abstract: A power-on protective structure for expansion cards installed in a portable computer or the like is provided. The power-on protective structure allows the replacement of the expansion card currently installed in the portable computer to be carried out only when the power supply to the expansion card is disconnected so that the data stored in the expansion card will not be damaged or lost due to inadvertent detachment of the expansion card from the portable computer while the power is still on. The power-on protective structure includes a casing; a battery compartment formed in the casing for accommodating at least one battery therein; a receptacle formed in the casing for accommodating an expansion card therein; a first cover for covering the battery compartment; and a second cover for covering the receptacle.

Abstract: A process for producing carboxylic acid esters by the following steps:a) preparation of a reaction mixture containing an alcohol and a carboxylic acid and/or a carboxylic anhydride and/or a carboxylic acid ester and or a partially esterified carboxylic acid,b) heating of this mixture to the suitable reaction temperature in the presence of a solid polysiloxane insoluble in the reaction medium and having sulphonic acid groups with intensive thorough mixing accompanied by continuous separation of the reaction water which forms, wherein the polysiloxane used as the catalyst in modified by treatment with a soluble aluminum, titanium or zirconium compound, and the spherical particles thereof have a diameter of 0.01 to 3 mm, a specific surface of 0.1 to 1200 m.sup.2 /g, a specific pore volume of 0.01 to 6.0 ml/g and a bulk density of 50 to 1000 g/l.

Abstract: Disclosed is a liquid treatment for an object to be processed, such as a semiconductor wafer or a glass LCD substrate, which is designed to remove any chemicals remaining in chemical supply nozzles and also improve the rinse capability and throughput. To that end, a processing liquid supply means is configured as jet nozzle pipes 40, a bottom surface 40c of each of the jet nozzle pipes 40 is inclined so as to slope downward from a chemical supply side thereof to an end portion, and the end portion is connected to a drain pipe 55 by a waste liquid orifice 40d and a drain valve 54. A chemical is supplied from nozzle orifices 40b of the jet nozzle pipes 40, the chemical is brought into contact with wafers W, and a treatment is performed thereby. Thereafter, a chemical-removing agent such as pure water or N.sub.2 is supplied through the jet nozzle pipes 40 to remove any remaining chemical from the jet nozzle pipes 40, then pure water is brought into contact with the wafers W to wash them.

Abstract: This invention is a new type of GaInP/AlGaInP for a visible separate-confinement-heterostructure strained quantum well(SCH-S-QW) laser with passive wave guides in the cladding layers. By using this structure, we can significantly improve the transverse beam divergence with only a slight increase of the threshold current. With proper choice of parameters, the transverse beam divergence as narrow as 18.degree.. FWHM can be achieved while the threshold current only becomes 1.12 factor than the lasers without the passive waveguide structure. This type of structure has three advantages:(1) It increases the spectrum dissolution rate between the laser and its optic element to increase the efficiency in actual operation.(2) Smaller oval ratio makes the light beams appears circular, and avoids the problem of non-paralleled focusing in optical instruments. It also eliminates cumbersome non-paralleled focusing in traditional GaInP/AlGaInP, and is more cost efficient.

Abstract: Disclosed are an isolated and purified protein acting as an angiogenic factor and nucleotide sequences encoding for such a protein, vectors containing such sequences and cells transformed by such vectors.

Abstract: Green fluorescent protein (GFP) gene was transplanted into baculovirus. The baculovirus was used to infect pests of vegetable crops. Three to five days after infection, the infected insects were found to emit strong fluorescence when exposed to a portable UV light. Therefore the spreading of baculovirus infection and disease progression can be effectively detected in the field. In addition, the GFP reduced UV damage to the baculovirus. As a result, GFP can increase the retention time of the virus as a pesticide in the field.

Abstract: A grease gun device includes a cock body having a piston cylinder and a slot joint. The piston cylinder also includes a seal washer opening and an outlet opening spatially disposed from the seal washer opening. A piston is reciprocatingly engaged in the piston cylinder for moving grease from the slot joint to the outlet opening, wherein a valve mechanism selectively allows grease from the piston cylinder to pass through the outlet opening. A grease supply barrel having a grease opening is engaged with the cock body to supply grease to the piston cylinder, and a sealed piston closes the other end of the grease supply barrel. A jacket is mounted about the grease barrel and connected with the cock body, wherein the diameter of an outermost periphery of the grease barrel is less than an inside diameter of the jacket, such that the grease barrel does not overlap the jacket. A rear cover engages the far end of the jacket.

Abstract: Microporous and mesoporous metal silicates are prepared by the hydrothermal reaction of a silicon and metal source in the presence of a template. The choice of raw materials influences the purity and hence the catalytic activity of the products. A pyrogenic mixed oxide is used as the silicon and metal source. Prepared products have the composition (SiO.sub.2).sub.1-x (A.sub.m O.sub.n).sub.x, where A is Ti, Al, B, V or Zr and x is 0.005 to 0.1. Shaped objects of the microporous and mesoporous metal silicates are obtained directly by using a shaped object of the pyrogenic mixed oxide. The products obtained are used as oxidation catalysts.

Abstract: A liquid oil and fat ingredient or others are carried by pores of a porous carrier composed of porous starch grain obtained by reacting an enzyme having raw starch digestive activity onto the starch. With starch being used as porous carrier, the powder preparation according to the present invention is not harmful to the human body, it can be supplied continuously in great volumes, manufactured cheaply without difficult processing, and moreover, being completely biodegradable, this powder preparation does not cause any environmental problems. It can be used in various industrial fields.

Abstract: A head lamp device of a vehicle comprising a passing beam lamp unit, a driving beam lamp unit, and optical fibers connecting them together. A discharge lamp serves as a light source of the passing beam lamp unit. A reflecting mirror disposed ahead of the discharge lamp reflects directly forwardly emitted light from the discharge lamp, and concentrates the light into a condensing portion. The optical fibers guide the light concentrated into the condensing portion to the driving beam lamp unit. The light guided by the optical fibers is used as a light source of the driving beam lamp unit. A shutter mechanism shuts off the light guided by the optical fibers at the time of switching to passing beam, and passes the light guided by the optical fibers at the time of switching to driving beam. The head lamp device using a discharge lamp as a light source completely eliminates the disadvantage of a discharge lamp type head lamp, a very high cost.

Abstract: A vehicular driving force distribution apparatus includes a first helical sun gear to which an input torque is applied, a first helical pinion meshing with the first sun gear, a second helical pinion rotating integrally with the first pinion, a second helical sun gear from which an output torque is outputted in mesh with the second pinion, a carrier from which another output torque is outputted. And an initial torque generating apparatus comprises a multiple disc clutch and provides between the second sun gear and the carrier for generating an initial torque as a differential limiting torque in between so as to secure a required driving force even on a very slippery road.

Abstract: A container, in particular for staking plants, including at least two coaxial ring-shaped members (2, 3) joined together via arms (5) hingedly connected thereto so that the members are mutually coaxially movable between a position in which they are folded flat and mutually adjacent, and an extended position in which the members are spaced apart as the arms are pivoted.

Abstract: A compressor fixture structure for a refrigerator comprises a plurality of compressor fixture structure units. Each of the compressor fixture structure units includes a support, a moving member, a spring, a compressor support, a fixing shaft, and hollow cylindrical buffer members. The support has a first spring fixing member on the center portion thereof and two side walls at both ends each upper portion of which is outwardly slanted. The moving members have an upper plate and a lower plate and a second spring fixing member formed on the lower plate. The spring is fixedly inserted between the first spring fixing member and the second spring fixing member. The compressor support is placed on the moving member. The fixing shaft is inserted through the moving member and the compressor support. The two hollow cylindrical buffer members are fixed between the slanted upper portion and the lower plate, respectively.

Abstract: A method for manufacturing a deep-submicron P-type metal-oxide semiconductor shallow junction utilizes an electron terminal structure with a base covered by a layer containing boron, germanium, and silicon. This layer containing boron, germanium, and silicon ("B--Ge--Si") is used as a shield during ion implanting and as an impurity ion source to form a high diffusion ion concentration at a shallow junction of the semiconductor base or substrate. The B--Ge--Si layer can be thoroughly removed using selective corrosive erosion. Due to the simplicity of this invention's manufacturing process, it can be used for deep-submicron PMOS component production, and thus, it has great practical value.

Abstract: A catalyst for the dehydrogenation of C.sub.6 -C.sub.15 paraffins is disclosed. The catalyst contains, on support, at least one platinum group component, at least one promoter component from the group tin, germanium and lead, and at least one additional modifier. The additional modifier contains at least one alkaline earth metal. The stability of the catalyst is essentially higher than that achieved by conventional use of an alkali metal.