baber/WOPTO huggingface dataset:
Patent EP-0348217-A2 (EP)
Inventor: GOODMAN JAMES
IPC: F16K1/20
Filed: 1989-06-23
Abstract: A valve assembly (1), for example, for controlling the flow of bulk material from a duct (2) to a pressure vessel (3), has a cylindrical passageway in which a valve aperture is defined by way of a shear ring (9). A closure member (104) is mounted by way of a support member (24) on a shaft (15) for pivotal movement between the closed position illustrated and an open position in which the passageway (100) is unobstructed. The closure member (104) has a substantially annular surface (105) which co-operates with a complementary surface on the shear ring (9). A deformable sealing ring (27) is housed in an annular recess formed in the outer surface (105) of the closure member. In the closed position of the valve assembly, fluid under pressure is fed to the recess (26) by way of ducts (5, 34) to apply pressure to the inner surface of the ring (27) and thereby deform it into sealing contact with the ring (9). As the deformation of the sealing ring is outwardly the sealing ring is subjected only to natural expansion forces. This enables sealing rings to be employed having characteristics appropriate to the application of the valve assembly.
Patent EP-0359543-A2 (EP)
Inventor: KOZAK BURTON
IPC: B25G1/02
Filed: 1989-09-13
Abstract: A cordless portable electric screwdriver (10) having a chuck (12) for normally holding a tool (14) for rotary driven motion at one end (16) thereof. The screwdriver includes a flexible extension shaft (18) having a first end (20) adapted to cooperate with the chuck (12) and a second end (22) adapted to hold the tool (14) for rotary driven motion. The first end (20) of the flexible extension shaft (18) and the chuck (12) have complementarily shaped non-circular cross-sections. The chuck (12) has an axis and is adapted to receive the first end (20) of the flexible shaft (18) by means of axial insertion of the shaft (18) into the chuck (12) with the non-circular cross-sections in rotationally aligned relationship and the chuck (12) is also adapted to hold the first end (20) of the flexible extension shaft (18) for rotary driven motion of the shaft (18). The second end (22) of the flexible extension shaft (18) and the tool (14) have complementarily shaped non-­circular cross-sections. The screwdriver (10) is operable to drive the tool (14) by reason of the second end (22) of the flexible shaft (18) holding the tool (14) for rotary driven motion thereof. With this arrangement, the flexible extension shaft (18) normally is disposed so as to be substantially entirely coaxial with the chuck (12) but is universally deflectable relative to the axis of the chuck (12) so as to position the second end (22) of the shaft (18) and the tool (14) at an acute angle relative thereto.
Patent EP-0361909-A2 (EP)
Inventor: YAMAMOTO YOHZOH MITSUI PETROCH
IPC: C08G61/08
Filed: 1989-09-28
Abstract: A polymer composition comprising (A) 100 parts by weight of a cyclo-olefinic random copolymer comprising an ethylene component and a cyclo-olefin component and having an intrinsic viscossity [η] of 0.05 to 10 dl/g, a glass transition temperature (tg) of 50 to 230 C, and a softening point of at least 70 °C, (B) 5 to 150 parts by weight of at least one flexible polymer having a glass transition temperature of not more than 0 C and (C) 0.004 to 1.0 part by weight of an organic peroxide and its reaction product.
Patent EP-0361982-A2 (EP)
Inventor: ISERT CLARENCE
IPC: F04D29/36
Filed: 1989-10-02
Abstract: A fan assembly has variable pitch blades (12) adjustable from outside the assembly while the fan is operating so as to alter the volume and direction of the induced airflow. The fan blades (12) have an airfoil configuration such that air is moved by the fan in either direction with equal efficiency. A novel lubricating system is also disclosed.
Patent EP-0366357-A2 (EP)
Inventor: HEGARTY JOHN
IPC: G01M11/02
Filed: 1989-10-19
Abstract: The power lens is measured by sampling a collimated beam (12) of light with an opto-electronic transducer to produce an output signal representing the intensity of the light across the width of the beam, converting the transducer output signal to digital form and loading the resulting digital signal into a computer memory, inserting a lens (16) into the path of the beam, repeating the sampling and signal conversion steps with the lens thus inserted for at least one separation distance between the lens and the transducer, and calculating the power of the lens from the digital signals stored in the computer memory.
Patent EP-0366409-A2 (EP)
Inventor: ANGELL CYRIL NELSON EDWARD
IPC: A62B18/08
Filed: 1989-10-24
Abstract: A means for attachment of a sight corrective lens (19) adjacent the eyepiece (4) of a respirator includes a lens mount (10) and a lens surround (2), the surround (2) having blind recesses (6b,7b) therein into which engage tabs (9,18) on the mount (10), the tabs (9,18) and recesses (6b,7b) being of different dimensions at different positions around the frames so as to assure a unique orientation of the lens mount (10) in relation to the surround (2) when they are engaged. At least one tab (9,18) may have spaced-­apart protrusions (15) for interfitting with a lug (7a) projecting radially from its associated blind recess (7b).
Patent EP-0377279-A2 (EP)
Inventor: LEVENS DENNIS L C O MINNESOTA
IPC: C09J7/02
Filed: 1989-11-22
Abstract: Adhesive transfer tape for lap-splicing EPDM roofing membranes. A presently preferred construction is an acrylate foam-like pressure-sensitive adhesive, used in conjunction with commercially available primers.
Patent EP-0405407-A2 (EP)
Inventor: TIHANYI JENOE DR ING
IPC: H03K17/06
Filed: 1990-06-25
Abstract: Power MOSFETs (2) which are operated as source followers can be driven by a "bootstrap" circuit arrangement. In this arrangement, a series circuit of a diode (3) and a capacitor (4) is connected between the drain and the source terminal of the MOSFET (2). The operating voltage source which is connected to the drain terminal of the MOSFET (2) charges up the capacitor (4) via the diode (3). This capacitor can now rapidly discharge via the drain-source path of a depletion MOSFET (5) controlled by a switch (9) into the gate-source capacitance of the power (MOSFET) (2) and turn it on. Via the capacitor (4), the potential rising at the source terminal of the MOSFET (2) displaces the voltage at the gate terminal of the MOSFET (2) and keeps it turned on. The depletion MOSFET (5) limits the quiescent current to low values. The circuit arrangement according to the invention is used in smart FETs. <IMAGE>
Patent EP-0406882-A2 (EP)
Inventor: KIMOTO TUNENOBU C O ITAMI WORK
IPC: H01L29/43
Filed: 1990-07-06
Abstract: In an ohmic contact electrode for the p-type semicon­ductor diamond, the electrode is formed of metals or metallic compounds containing boron on a p-type semiconduc­tor diamond, so as to obtain a decreased contact resistance.
Patent EP-0413182-A2 (EP)
Title: Multi-fiber alignment package for optoelectronic components
Inventor: BOUDREAU ROBERT A
IPC: G02B6/42
Filed: 1990-07-27
Abstract: A localized cooling method allows the sequential alignment and soldering of one optical fiber (30,31) at a time to a semiconductor package (26), while previously aligned and soldered optical fibers are held fixed. This method utilizes the mechanical property of a sharp melting point eutectic alloy solder or a pure metal solder for the fiber connections and is effective for multi-fiber optoelectronic packages demanding stability and high precision. A package design for optoelectronic components requiring multi-fiber alignment incorporates this feature of localized cooling internally. The localized cooling method and the novel package utilizing this method internally make it possible to eliminate the tilted angle optical fiber alignment problem by mounting tilted facet optical amplifier components at a predetermined offset angle.
Patent EP-0435072-A2 (EP)
Inventor: KAMPMANN DETLEF DR DIPL-CHEM
IPC: C07C209/26
Filed: 1990-12-12
Abstract: The present invention relates to a process for the preparation of N,N-dimethylamines by reaction of an aldehyde with dimethylamine and hydrogen under pressure and at elevated temperature in the presence of a hydrogenation catalyst containing Ni, Co, Cu, Mn, Fe, Rh, Pd and/or Pt. After separating off unconverted dimethylamine and excess hydrogen, formaldehyde or a formaldehyde-forming substance is added, and distillation is carried out.
Patent EP-0385745-A2 (EP)
Inventor: NAGASE RIHEI
IPC: C09D5/03
Filed: 1990-02-28
Abstract: A powder coating composition is disclosed which includes an epoxy resin which is solid at room temperature, and a curing agent, characterized in that the curing agent includes an adduct obtained by reaction of (a) a polyfunctional epoxy resin, (b) an imidazole compound having a secondary amino group in the imidazole ring thereof and (c) a polyhydric phenol.
Patent EP-0390397-A2 (EP)
Inventor: DE LAIT FRANS G A
IPC: C03B19/09
Filed: 1990-03-20
Abstract: A method is disclosed for fabricating near-net-shape betaquartz lithia-­alumina-silica (LAS) or alumina-silica glass-ceramic parts. Gels are processed to a powder of controlled form and morphology which may be further formed into a near-net-shape solid and densified by heat treatment at relatively low temperature. Either of two basic methods is used to process a starting wet gel to a usable (activated) powder. In the first method, the gel by dried in a recirculating air oven which includes a means for moisture to escape, the dried gel is milled and particles smaller than a predetermined size are kept, the retained particles are calcined according to a predetermined schedule of temperatures and times, the calcined particles are wet milled in a deionized aqueous suspension, the milled suspension is dried, the dried powder is dry-­milled if necessary to reduce the agglomeration size of particles, and hydroxyl groups are removed from the de-agglomerated powder particles. In the second method, the starting gel is supercritically dried in a reaction vessel capable of being vented; this single step replaces the first three steps of the first method, and the remaining steps are the same. After being processed to usable condition the powder may be formed to near net shapes by suspension or pressing techniques, preferably by cold isostatic pressing. The green part is converted to a dense body at low temperatures, typically a couple of hundred degrees Celsius above the glass transition temperature. The treatment incorporates initial drying, sintering, nucleation, and crystal growth all in one schedule to yield a glass-ceramic which is 70 to 95 percent crystalline by volume, mainly a high quartz solid solution with very low expansivity and helium permeability.
Patent EP-0397385-A2 (EP)
Inventor: BECHTEL LINDA KATHRYN
IPC: H03M13/00
Filed: 1990-05-02
Abstract: For forward error correction, the least significant bit of each multibit symbol is encoded before transmission according to a block code that has an over-all parity bit. Since even syndromes can be produced by only an even number of errors and odd syndromes by an odd number of errors, a Chase decoder at the receiver considers either all double errors or all single errors and all triple errors that include the least reliable symbol in making the corrections to arrive at the most likely transmitted sequence.
Patent EP-0409657-A2 (EP)
Inventor: THOMPSON RONALD JAMES
IPC: C08L51/00
Filed: 1990-07-20
Abstract: Tough transparent thermoplastics blends may be prepared by blending 10 to 99 weight percent of a block copolymer; 0.1 to 1 weight percent of particulate rubber having a particle size from 0.1 to 10 microns; and the balance a clear glassy polymer. These clear polymers are useful in a number of applications, particularly for those applications requiring quite high toughness and transparency such as packaging, containers or protective covering.
Patent EP-0420425-A2 (EP)
Inventor: CHANDRASEKARAN MOHAN
IPC: G06F11/14
Filed: 1990-09-05
Abstract: A transaction processing system includes a primary active data base 52 and a tracking replica database 72. Change processing of the replica database is accomplished by separating redo records obtained from the transaction log 53 of the primary database into a plurality of respective queues 66. The redo records are separated such that all transaction records for a unit of transfer (page) of the primary database are placed on the same queue in log sequence. Each queue is linked exclusively to one of a plurality of parallel queue servers 68,69. Each queue server applies to the replica database the redo records in the queues which it exclusively serves. The replica database is thereby made consistent with the primary data by a lock-free updating mechanism which services the pages of the replica database in parallel.
Patent EP-0436312-A2 (EP)
Inventor: SCHREURS JAN JOZEF
IPC: G05B23/02
Filed: 1990-12-06
Abstract: An online valve monitoring system senses operational characteristics of a valve and provides a diagnosis of aberrations in the characteristics. Sensor signals from the valve are transmitted to a diagnostic processor which extracts characteristic features from the sensor signals as deviations from baseline data for the valve or operational values for predetermined reference operations. An expert system applies a rule base to the characteristic features or operational values; the expert system being updated in a largely automatic process by collecting operational and maintenance data which is linked together to produce data-derived rules. Criteria are defined for comparing the data-derived rules and pre-existing rules in the rule base. All data-derived rules meeting the criteria and, if only single-valued conclusion parameters are in the rules, the pre-existing rules meeting the criteria are placed on the agenda. Each of the rules on the agenda are compared with all of the other rules or, when a multi-valued conclusion parameter is used in the criteria, with all of the pre-existing rules in a pool of rules meeting the criteria. For each pair of rules, if the conclusions conflict and the premises are not mutually exclusive (or independent if a multi-valued conclusion parameter is used in the criteria), the pair of rules are placed on a conflict list which is output to a human expert for evaluation to produce an updated rule base.
Patent EP-0403428-A2 (EP)
Inventor: SCHNEIDER RUDOLF
IPC: B23Q3/00
Filed: 1990-06-01
Abstract: The invention provides an apparatus for fixing a workpiece to be machined by a machine tool to the worktable of the machine tool in an exactly determined positional relationship with reference to a reference point located on the worktable of the machine tool. The apparatus of the invention comprises a workpiece receiving means adapted to removably receive the workpiece to be machined, and first positioning means comprising a first group of positioning apertures provided in the workpiece receiving means, and a first group of positioning studs provided on the worktable of the machining tool, said first group of positioning apertures and said first group of positioning studs cooperating to determine the position of the workpiece receiving means in X- and Y-direction. Further, there are provided second positioning means comprising a second group of positioning apertures and a second group of positioning studs, said second groups of positioning apertures and positioning studs being located distantly from said first groups of positioning apertures and positioning studs and cooperating with each other. The cooperating second groups of positioning apertures and positioning studs determine the position of the workpiece receiving means either only in X-direction or only in Y-direction, but not simultaneously in both directions.
Patent EP-0402333-A2 (EP)
Inventor: ADOLFSSON RUNE
IPC: F16C33/06
Filed: 1990-05-10
Abstract: A device in thrust or angular contact bearings of sliding bearing type incorporating a rotary portion (1), a bearing cup (2) and a lubricant supplied therebetween. According to the invention is proposed a sliding bearing which provides an efficient lubrication and wherein leakage of lubricant is avoided. This has been achieved in that a sliding washer (3) of magnetisable material is provided between the rotary portion (1) and the bearing cup (2), whereby the lubricant is constituted by a magnetic fluid, and that the sliding washer (3) is magnetised in such a pattern that the lubri­cant is distributed over and retained on the sliding surface of the sliding washer.
Patent EP-0450288-A2 (EP)
Inventor: MEHNERT WALTER DR
IPC: H02K35/06
Filed: 1991-02-13
Abstract: Um bei einem Elektromotor (11) mit wenigstens einer Spule (14), durch die zur Erzeugung einer Relativbewegung zwischen einem Statorteil und einem Reaktionsteil ein elektrischer Strom fließt, mit wenigstens einem Magneten (12), dessen Feld die Spule durchsetzt, und mit wenigstens einem in den Feldern von Magnet und Spule angeordneten Körper (20) aus ferromagnetischem Material bei möglichst großer abgebbarer Kraft eine möglichst kleine Bauform zu erzielen, ist vorgesehen, daß die Spule mit dem Magneten zumindest in Richtung der Relativbewegung unbeweglich verbunden ist und daß der Körper aus ferromagnetischem Material bezüglich Spule und Magnet in Richtung der Relativbewegung beweglich gelagert ist und einen quer zu dieser Richtung verlaufenden Luftspalt (22) aufweist, der so angeordnet ist, daß sich aufgrund seiner Relativbewegung zu Spule und Magnet der magnetische Fluß in der Spule ändert.
Patent EP-0466008-A2 (EP)
Inventor: SUGITA MASARU
IPC: G11B23/087
Filed: 1991-07-03
Abstract: A recording and reproducing cassette tape is provided. The cassette tape has a case (12,62), a pair of reels (14, 16;164,166;164,216), a magnetic tape (18,168,218) and an adjusting device for stopping feeding of the tape at an arbitrary position of the longitudinal direction of the tape. The adjusting device comprises an annular plate (20, 170) relatively rotatably provided at one of the reels and setting means (28,128,178) mounted on the annular plate for setting a tape stop position by contacting with an outer surface of said magnetic tape wound on the reel. This adjusting device detects the arrival of the tape at the stopping position when the tape is reproduced by a tape recorder/reproducer to stop feeding of the tape by mechanically operating the tape or an automatic device of the tape recorder/reproducer.
Patent EP-0475001-A2 (EP)
Inventor: CARENZO ANTHONY
IPC: D06H3/00
Filed: 1991-07-03
Abstract: A material sensor employs deflectable means and piezoelectric film means for providing signals indicative of a material condition.
Patent EP-0467199-A2 (EP)
Inventor: BRASCH WILLIAM R
IPC: H05K3/42
Filed: 1991-07-09
Abstract: The invention relates to a method for the manufacture of printed circuit boards from dielectric material by drilling the dielectric material to the desired specifications, catalyzing the drilled dielectric material with a solution of colloidal particles, applying an image or organic resist film to the catalyzed board to produce the desired circuit design, immersing the imaged board into an electroless copper plating solution, and plating the catalyzed portions of the boards with electroless copper to obtain metallization.
Patent EP-0484944-A2 (EP)
Inventor: OOTA SHINGO
IPC: G06F17/16
Filed: 1991-11-07
Abstract: In a vector calculation apparatus, a vector adder (21) produces an adder output signal (E) by calculating a three-term sum of a first, a second, and a third adder input signal which are produced in accordance with the adder output signal, a predetermined value ("0"), a first vector (A), and a second vector (B) under control of a control circuit (29). A first selecting circuit (26) selects, as a first selected signal, one of the adder output signal and the first vector. A second selecting circuit (27) selects, as a second selected signal, one of the adder output signal and the second vector. A zeroth selecting circuit (24) selects, as a zeroth selected signal, one of the adder output signal and the predetermined value. The vector adder is supplied with the first selected signal as the first adder input signal, with the second selected signal as the second adder input signal, and with the zeroth selected signal as the third adder input signal.
Patent EP-0451939-A2 (EP)
Inventor: WATANABE YASUTOMO CANON KABUSH
IPC: B41J2/16
Filed: 1991-02-25
Abstract: In the wiring portion in the wiring substrate constituting the recording head of a liquid spray type recording apparatus, the electroconductive layers (30, 141) comprises at least two layers, the protective layer of the electroconductive layer includes at least two unit layers (35, 36, 142, 144), one of them being formed so that it has a shape and size different has a size and shape different from those of the through hole(s) (35a, 36a) in remaining unit protective layer(s) (35, 36, 142, 144), thereby assuring the formation of electric connection portion and improving durability of the electric connection portion.
Patent EP-0476801-A2 (EP)
Inventor: OKU TOMOKI
IPC: H01L21/266
Filed: 1991-03-19
Abstract: A particle beam implantation into a thermohardening resin has an effect in hardening the thermohardening resin of the implanted region sufficiently, and the non-implanted part is not hardened. Therefore, the non-hardened resin of the non-implanted part can be removed at high selectivity with the hardened resin of the implanted part and an inverted pattern comprising hardened resin is produced.
Patent EP-0479771-A2 (EP)
Inventor: HAYES MICHAEL EDWARD
IPC: C09K23/00
Filed: 1986-10-14
Abstract: Utilization of highly viscous hydrocarbons, including heavy crude oils and residual oils. More particularly, this invention relates to the utilization of viscous hydrocarbons through the formation of low-viscosity hydrocarbon-in-water emulsions, including (a) chemically non-stabilized hydrocarbon-in-water emulsions ; (b) chemically stabilized hydrocarbon-in-water emulsions; and (c) bioemulsifier-stabilized hydrocarbon-in-water emulsions, the latter being called hydrocarbosols, in which the hydrocarbon droplets dispersed in the continuous aqueous phase are substantially stabilized from coalescence by the presence of bioemulsifiers and in particular, microbial bioemulsifiers, surrounding the droplets at the hydrocarbon/water interface. Furthermore, this invention relates to the combustion of pre-atomized fuels which include both hydrocarbosols and other hydrocarbon-in-water emulsions made with viscous hydrocarbons. Methods and compositions are provided to facilitate the utilization of the above-described hydrocarbon fuels as clean-burning fuels.
Patent EP-0503485-A2 (EP)
Inventor: GWIOSA HORST GRUNDIG E M V MAX
IPC: H04B1/20
Filed: 1992-03-06
Abstract: The functions which can be carried out by video and/or television apparatuses are becoming increasingly diverse. Accordingly, the remote controls for these apparatuses must also be fitted with an ever-increasing number of operating elements, which renders the remote controls large, unwieldy and complicated. It is proposed to construct a remote control in which a substantial number of operating functions is carried out by means of a control ball within the remote control. The control ball, which is known in part from computer technology, is to be designed, however, in such a way that it protrudes from both the underside and the upper side of the remote control. Thus, it can be rolled along on a support or, when held in the hand, can be moved from the remote control upper side with the fingers. Spring-loaded sliding pads on the remote control underside prevent the movement of the control ball from being restricted if the remote control lies on a support, and the control ball is nevertheless moved with the fingers from the upper side. <IMAGE>