baber/WOPTO huggingface dataset:
Patent EP-0253063-A2 (EP)
Inventor: MILBURN WILLIAM W JR
IPC: F04C28/12
Filed: 1987-03-24
Abstract: Structure and method are disclosed for providing timed valving in which a nutating plate (90) having an opening (91) defined therethrough moves relative to at least one other nominally static plate (87) having a complementary opening (88) defined therethrough, the nutating plate (90) at one portion of the nutating travel bringing the opening (91) defined therethrough in alignment with the complementary static opening (88) and in another portion of the nutating movement positioning such opening (91) therethrough in a spaced, sealing relationship relative to the complementary static opening (88). Either the nutating or nominally static plate may be utilized in pairs such that a sandwiched relation­ship between one type of plate and the other exists. The walls of the opening in the static plate are angularly disposed with respect to the walls of the opening defined in the nutating plate and steadily converge in the direction toward the nutating plate thereby restricting the opening in the static plate at the face adjacent to the nutating plate, with the angular disposition and convergence being configured to reduce turbulent flow during opening and closing of the valving structure. Timing of the opening and closing of the valving structure may be adjusted relative to the drive shaft so as to provide opening and closing cycles of selected portions of an entire rotation.
Patent EP-0249885-A2 (EP)
Inventor: KANDA NOBUO
IPC: B41M5/30
Filed: 1987-06-11
Abstract: Described is a heat-sensitive recording material incorporating a colorless or pale-colored basic dye and a color acceptor which is reactive with the dye to form a color when contacted therewith, said recording material being characterized in that (a) as the basic dye are used 100 parts by weight of a specific phthalide derivative of the formula [ I ] and 20 to 100 parts by weight of a specific black color-forming fluoran derivative of the formula [ II ], (b) as the color acceptor is used a polyvalent metal salt of an aromatic carboxylic acid and (c) a recording sensitizer is further used, and whereby the resulting record images are at least 0.75 in PCS value at 800nm.
Patent EP-0259867-A2 (EP)
Inventor: SHIBANO YOSHIZO OSAKA WORKS
IPC: H04L27/22
Filed: 1987-09-09
Abstract: A demodulator is disclosed for a PSK-modulated transmission signal in which the time average value of the frequencies thereof are equal to the carrier frequency. A mixer receives and mixes the PSK-modulated transmission signal with a signal from a local variable frequency oscillator (1) and the output thereof is converted (5) to a square wave which is used to reconstruct the original digital modulation data. A pulse counter (8) receives and counts the square wave signal for every period of time which is  n  times a time slot of a digital signal and a subtractor (11) provides a difference between the count value from the pulse counter and a reference count number. The subtractor output is converted (12) to an analog signal which controls the local oscillator frequency.
Patent EP-0264895-A2 (EP)
Inventor: KONRAD RAINER DR
IPC: C08F4/62
Filed: 1987-10-20
Abstract: Ethene polymerization by Phillips catalysis is carried out using (1) a supported catalyst, which is laden with chromium, phosphorus and aluminum, and (2) a cocatalyst, (1) being obtained by a method in which (1.1) a catalyst intermediate laden with chromium, phosphorus and aluminum is prepared from a silicate carrier, a selected chromium compound, a selected phosphorus compound and a selected aluminum compound, and then (1.2) the catalyst intermediate is heated in an oxygen-containing gas stream. In this process, the component (1) used is one which is obtained by a method in which, in each case in a specific manner, (1.1) in a first stage, (1.1.1) first a suspension is prepared from (1.1.1.1) a finely divided silicate carrier and (1.1.1.2) an inert organic solvent, (1.1.2) then, (1.1.2.1) in an inert organic solvent, (1.1.2.2) an organic chromium compound is combined with (1.1.2.3) an aluminum trialkyl, (1.1.3) then (1.1.3.1) the suspension resulting from (1.1.1) is combined with (1.1.3.2) a phosphoric acid or phosphite and (1.1.3.3) the product obtained from (1.1.2), (1.1.4) finally, the suspension obtained in (1.1.3) is evaporated to dryness, and then (1.2) in a second stage, first (1.2.1) the intermediate obtained from (1.1) is treated with a stream of nitrogen, then (1.2.2) the intermediate obtained from (1.2.1) is heated in an oxygen-containing gas stream, and finally (1.2.3) the intermediate obtained from (1.2.2) is treated with a stream of nitrogen, and both a lithiumalkyl and a boronalkyl are used as (2).
Patent EP-0274718-A2 (EP)
Inventor: SATYANARAYAN ARUMUGAM
IPC: H01L33/00
Filed: 1987-12-19
Abstract: A method for providing a dual layer diffusion mask or encapsulation coating for use with III - V compound semiconductors, the dual layer coating comprising an inner layer of silicon which closely matches the coefficient of thermal expansion of the III - V compound semiconductor and an outer layer of silicon nitride which is relatively impermeable to subsequent metallization and for thereafter applying metallized contacts to the III - V compound semiconductor through selectively etched openings nn the diffusion mask or encapsulation coating.
Patent EP-0274743-A2 (EP)
Inventor: BRUNELLE DANIEL JOSEPH
IPC: C07C69/96
Filed: 1987-12-28
Abstract: Aqueous bischloroformates are prepared by the reaction of a dihydroxyaromatic compound (e.g., bisphenol A) with phosgene in a substantially inert organic liquid (e.g., methylene chloride) and in the presence of an aqueous alkali metal or alkaline earth metal base, at a pH below about 8. After all solid dihydroxyaromatic compound has been con­sumed, the pH is raised to a value in che range of about 7-12, preferably 9-11, and maintained in said range until a major proportion of the unreacted phosgene has been hydro­lyzed. At the same time, any monochloroformate in the product may be converted to bischloroformate.
Patent EP-0256702-A2 (EP)
Inventor: ACAMPORA ANTHONY
IPC: H04L12/56
Filed: 1987-07-29
Abstract: The present invention relates to an N-input, N-output "Knockout" packet switch (11) which uses decentralized control and distributed routing. More particularly, within the switch, the N input signals comprising fixed-­length packets propagate along separate broadcast buses (14) to each of N bus interface units (15) which include N packet filters (20), a concentrator (21) and a shared buffer (22). Each bus interface unit is associated with a separate one of the N outputs (12) of the switch, and the N packet filters therein are each associated with a separate one of the N broadcast buses for detecting if a packet on the associated bus is destined for the associated switch output. The concentrator is used to reduce the number of separate buffers needed to receive packets which may arrive simultaneously and are destined for the associated output. Contending packets at the output of the concentrator are stored in the shared buffer before placement on the output line on a first-in, first-out basis. The lost packet rate of the "Knockout" switch can be made as small as desired and latency of packets in the switch is the smallest achievable by any comparable switch.
Patent EP-0262768-A2 (EP)
Inventor: MEADE ROGER
IPC: G07B1/00
Filed: 1987-07-31
Abstract: This invention has reference to a ticket issuing machine including a keyboard (3) to enter into the machine information about a ticket to be issued, a printer (5) to print out ticket information on a ticket, store circuits (15,20,21) for storing information about tickets being issued and with means for altering the information stored in the store circuits to control the operation of the printer 1. The keyboard 3 comprises a plurality of keys (3a) at least some of which bear more than one identification and that there are provided selection circuits capable of identifying which of the identifications is relevant to the particular syntax operation of the ticket machine.
Patent EP-0272080-A2 (EP)
Inventor: VAN BILDERBEEK BERNARD HERMAN
IPC: E21B33/14
Filed: 1987-12-15
Abstract: An annulus cementing and washout technique and equipment, particularly for use in an offshore oil or gas well. An annulus is formed between an outer casing and a second-outer casing, this annulus being filled with cement up to a predetermined level and washed free of cement above sai$ level. The second-outer casing is fitted with a washout casing section having washports at the predetermined level. The washports are selectively opened and closed by axially moving a hollow sleeve mounted in the washout casing section, preferably by turning the sleeve on a screw thread using a remotely operated tool. Details of a suitable tool include spring-loaded radial dogs which engage axial slots within the sleeve. Use of the sleeve and the tool to move the sleeve enables the washports to be opened and closed as required without troublesome rotation or support of the casing.
Patent EP-0308770-A2 (EP)
Inventor: DESIMONE JOSEPH P
IPC: G01N33/52
Filed: 1988-09-13
Abstract: A quantitative measuring instrument includes a casing with a cavity for a reagent strip handling mechanism. The mechanism includes a slide with a resiliently biased toggle member for providing snap action of the slide between an open, reagent strip loading position and a closed, quantitative measuring position. A light seal is mounted on the toggle member that engages each reagent strip in the closed position of the slide. In a first, alternative embodiment of the instrument, the slide mechanism includes a cam arm that engages cam surfaces on the instrument raising the cam arm to an open, reagent strip loading position from a closed, reagent strip holding position. In this embodiment the slide can be removed from the instrument and cleaned. In a second alternative embodiment the slide includes a first detent corresponding to a closed position of the slide and a second detent corresponding to an open position. A pair of spring fingers are mounted in the cavity of the instrument casing. One of the spring fingers engages the first detent in the closed position and the second spring finger engages the second detent in the open position providing resistance that defines the two positions. The slide in this embodiment can also be removed and cleaned.
Patent EP-0307004-A2 (EP)
Inventor: MULLANI NIZAR ABDUL
IPC: G01T1/164
Filed: 1984-09-04
Abstract: A positron emission tomography camera (10) has a plurality of detector rings (14) positioned side-by-side or offset by one-half of the detector cross section around a patient area (16) to detect radiation therefrom. Each ring contains a plurality of scintillation detectors (60,62,64) which are positioned around an inner circumference with a septum ring (30,32) extending inwardly from the inner circumference along each outer edge of each ring. An additional septum ring (36) is positioned in the middle of each ring of detectors (60,62, 64) and parallel to the other septa rings (30,32) whereby the inward extent of all the septa rings may be reduced by one-half and the nllmber of detectors required in each ring is reduced.
Patent EP-0312842-A2 (EP)
Inventor: GEHRIG HEINZ DR
IPC: B32B5/28
Filed: 1988-10-06
Abstract: The moulding composition comprises a curable synthetic resin, reinforcing fibres and fillers, the resin being applied to the reinforcing fibres in two layers:
 in an inner layer, the reinforcing fibres are impregnated with a synthetic resin component A which contains up to 10% by weight of fillers, and, in an outer layer, the impregnated reinforcing fibres are coated or sheathed with a further synthetic resin component B, which contains at least 20% by weight of fillers; components A and B may contain identical or different resins.
Patent EP-0315143-A2 (EP)
Inventor: MAYR FRIEDRICH J
IPC: B29C48/525
Filed: 1988-11-02
Abstract: The invention relates to a method of extruding plastic materials in which the gap width in the shear section of the extruder between the extruder screw and the barrel surrounding the latter in the shear section is set by the conical surfaces on extruder screw and barrel defining the gap width being displaced in relation to one another. The method according to the invention provides for this in that, before conveying into the shear gap, the plastic material is preplasticised at a gap radius which corresponds to the entry radius into the shear gap. In the extruder for implementing the method, the radius of the extruder screw in this case corresponds to the respective larger or smaller connecting radius on the conically running shear section. Preferred applications are the processing of blended plastics and, in particular, recycling plastics. <IMAGE>
Patent EP-0317888-A2 (EP)
Inventor: NEGELE MICHAEL DR
IPC: C07C205/51
Filed: 1988-11-17
Abstract: Fluorinated nitroalkyl compounds of the type <IMAGE> and a preparation process for fluorinated nitroalkyl compounds from compounds of the type <IMAGE> and compounds of the type <IMAGE> in the presence of alkali metal fluorides and a polar, aprotic solvent. (The meaning of the symbols X, Y, R, R1, R2 and R3 used is given in more detail in the description).
Patent EP-0322642-A2 (EP)
Inventor: FUKUMOTO NORIYOSHI
IPC: H01R13/18
Filed: 1988-12-14
Abstract: A socket is constructed in such a way that 6 pieces of segments which are made of electric conductive bar and having a regular hexagonal cross section are assembled by a centripetal force of a spring band to provide a regular hexagonal plug inserting hole in its center, and the 6 pieces of the segments make an independent operation without re­stricting other segments mutually and having the contact pressure and make a positive corresponding operation against the center offset and the error of the inserting angle of the plug when the plug is inserted and each segment applies the contact pressure simultaneously against the plug to maintain the complete contact with the plug.
Patent EP-0278788-A2 (EP)
Inventor: HOSHINO MITSURU
IPC: C08L53/00
Filed: 1988-02-15
Abstract: A PVC-based resin composition comprises 3 - 30 wt.% of a graft copolymer and 97 - 70 wt.% of a PVC-­based resin and has highly-balanced properties between impact resistance, transparency and stress-whitening resistance and excellent processing characteristics. The graft copolymer has been obtained by graft-­polymerizing, in the presence of a latex containing 70 - 85 parts by weight of a rubbery butadiene-based polymer formed of 65 - 85 wt.% of butadiene, 15 - 35 wt.% of styrene and 0 - 3 wt.% of crosslinkable monomer, (i) 5 - 24 parts by weight of a first monomer mixture as a first-stage component, said first monomer mixture being composed of 70 - 97 wt.% of methyl methacrylate and 30 - 3 wt.% of an alkyl acrylate whose alkyl group has 1 - 8 carbon atoms; and then (ii) 3 - ­21 parts by weight of a second monomer mixture as a second-stage component, said second monomer mixture being composed of 97 - 100 wt% of styrene and 0 - 3 wt.% of crosslinkable monomer. The sum of the first and second monomer mixtures and the rubbery butadiene-based polymer is 100 parts by weight. The monomers grafted in the first stage amount to 30 - 80 wt.% of the sum of the grafted monomers. The graft polymer is also new.
Patent EP-0289311-A2 (EP)
Inventor: EVANS ELFED HUW
IPC: C11D17/06
Filed: 1988-04-28
Abstract: Granular spray-dried detergent compositions including a liquid component unsuitable for spray-drying are prepared by co-spray-drying a slurry of a porous crystal-growth-modified carbonate-based carrier salt and a detergent slurry containing detergent-active compounds, builders and other suitable ingredients, and then treating the resulting composite powder with the liquid component. The porous carrier salt is preferably the sodium carbonate/sodium sulphate double salt Burkeite, crystal-growth-modified by means of a polymeric polycarboxylate.
Patent EP-0295088-A2 (EP)
Inventor: TOPPER ROBERT JOSEPH
IPC: H04N9/78
Filed: 1988-06-08
Abstract: A circuit to detect the presence of the chrominance signal in a composite signal is disclosed. Advantage is taken of the fact that the polarity of luminance signals in two fields or frames is the same whereas the polarity of chrominance signals is opposite. The circuit uses a band pass filter to select the chrominance and high frequency luminance signals, a polarity detector, a field or frame delay, and an XOR having the delayed and nondelayed outputs of the polarity detector as inputs. The output can be used to modify the decoding circuits when a purely black and white image is present.
Patent EP-0298648-A2 (EP)
Inventor: JOHANSEN KELD
IPC: C04B35/653
Filed: 1988-06-29
Abstract: Superconducting metal-oxide crystalline compounds having the general formula (Me¹) p (Me²) q Cu₃O x F y , wherein Me¹ is selected from Y, Sc and the lanthanides, Me² is Ba and/or Sr, p is 0.8-2.5, q is 0.8-3, x is 5-8.5 and y is 0-6, are prepared by reacting Me² peroxide in the molten state with oxides and optionally fluorides of Me¹ and Cu, possibly accompanied by Me² oxide. Since the reaction takes place in the melt of Me² peroxide, there is obtained a better contact between the reactants than it is possible in known solid state reactions, and the chance of obtaining large, very pure monocrystals. Especially the Me² peroxide renders it possible to obtain a compound in which Cu to a high degree is present in a higher state of oxidation than 2. 
     Particularly well defined end products are obtained when the reaction is carried out in a closed vessel with an oxygen-free atmosphere, whereby the peroxide alone is the source for the oxygen that can increase the oxidation state of the copper.
Patent EP-0304296-A2 (EP)
Inventor: CHEN JANGLIN C O EASTMAN KODAK
IPC: C08G79/025
Filed: 1988-08-18
Abstract: The present invention provides a photographic element comprising an antistatic composition comprising a polyphosphazene comprising repeating units of the formula:
      and a salt that complexes with the polyphosphazene. In the above formula, x, y, R₁, R₄, R₅, W, X, Y, and Z are as defined herein.
Patent EP-0305116-A2 (EP)
Inventor: SU TIEN-KUEI
IPC: C08L23/04
Filed: 1988-08-18
Abstract: The processability of blends of linear polyolefins (particularly HDPE or LLDPE) and polyamides (particularly nylon) into extrudates is improved by the addition of small amounts of a fatty acid derivative such as fatty acid amide. The addition of a fatty acid derivative results in reduced extruder torque and gives extrudates with smoother surfaces.
Patent EP-0315391-A2 (EP)
Inventor: ARCELLA FRANK GERALD
IPC: F16K37/00
Filed: 1988-10-31
Abstract: An online valve monitoring system to monitor valve operation and sense the wear senses operational characteristics of a valve and provides a diagnosis of aberrations in the characteristics. Sensors (24,31,34,32,36), coupled to a valve (20), supply sensor signals to a data acquisition system (40,42) to be transmitted to a remote location. An I/O processor (44) at the remote location receives the sensor signals and a diagnostic processor (46) extracts characteristic features from the sensor signals as deviations from baseline data for the valve (20). Use of multiple sensors increases the confidence of the diagnosis which combined with the known trend line of historical data permits scheduling of preventive maintenance.
Patent EP-0316156-A2 (EP)
Inventor: HIRAYAMA HIROMICHI
IPC: G11B15/43
Filed: 1988-11-09
Abstract: A tape loading mechanism of a video tape recorder designed to play a standard size tape cassette and a compact size tape cassette comprises a chassis (700) carrying a pair of guide grooves (707, 708) at both sides of a guide drum (800) toward a first area (2′) of the chassis on which the standard size tape cassette is held at the time of operation of the video tape recorder. The guide grooves are further extended toward a second area (3′) of the chassis defined inside the first area on which the compact size tape cassette is held. A pair of loading members (710, 711) are moved along the guide grooves toward their front ends close to the tape cassette when the compact size tape cassette is loaded so that loading poles (710b, 710c, 711b, 711c) on the loading members are accepted in a cutout portion formed at a front side of the compact size tape cassette. Further, the loading members are displaced toward the rear end of the guide grooves when the standard size tape cassette is loaded so that the loading poles are accepted in a depressed part formed at a front side of the standard size tape cassette. A light emitting element (735) for detection of the end of the tape is held rotatably on an arm (736) and changes in position responsive to the type of the tape cassette. A deformable member (713) is provided on a tension arm (713) which is connected to a brake member (716) for applying resistance to the rotation of the supply reel, so as to avoid   excessive slackening of the brake member when the tension arm is rotated to a position adapted for loading the compact size tape cassette. Further, a half loading arm (729) is provided so as to prevent complete loading of the magnetic tape on the guide drum during high speed transportation of the magnetic tape.
Patent EP-0317172-A2 (EP)
Inventor: CHAN C S
IPC: B41J2/16
Filed: 1988-11-10
Abstract: A plastic orifice plate (43) for an ink jet printhead and manufacturing process therefor which includes electroforming a metal die (22) having raised sections (30) thereon of predefined center-to-center spacings, and using the die to punch out openings (32) in a plastic substrate of a chosen thickness to form a plurality of closely spaced orifice openings (36) in the substrate. The orifice plate (43) can be of a chosen transparent material and secured to a printhead substrate where the dynamics of ink flow can be viewed through the orifice plate during printhead testing and evaluation.
Patent EP-0325855-A2 (EP)
Inventor: GRUBER MICHAEL W C O MINNESOTA
IPC: B65H35/07
Filed: 1988-12-16
Abstract: An automatic application device 10 for dispensing an adhesive transfer tape T with the liner L removed includes a hub 14 for rotatably supporting a roll 12 of adhesive transfer tape and an application head 34 for pressing the adhesive transfer tape unwound from the roll onto a product 70 to which it is to be applied. An idler roller 36 is disposed above the application head to pull the liner away from the appli­cation head. A motor driven take-up roller 40 and corresponding nip roller 42 are provided to pull the liner along its path over said idler roller away from the application head. A brake roller 30 is provided along the path of the transfer tape between the roll and the application head to selectively stop the tape's advance. When the brake roller is released, the product to which the adhesive is applied pulls the tape under­neath the application head, unwinding it from the roll. When the brake roller is stopped, the tape stops advancing and the adhesive strip carried on the liner is broken. A compensation roller 32 provides that when the head is lifted the tape is maintained in a fixed posi­tion relative to the head so that the leading edge of the adhesive on the tape liner returns to the proper position when the head is lowered.