baber/WOPTO huggingface dataset:
Patent EP-0243117-A2 (EP)
Inventor: ELROD SCOTT ALAN
IPC: G10K11/36
Filed: 1987-04-16
Abstract: Provision is made for selectively addressing individual crests (64) of traveling or standing capillary surface waves (62) to eject droplets from the selected crests on command. To that end, the addressing mechanisms (65, 85) of this invention locally increase the surface pressure acting on the selected crests and/or locally reduce the surface tension of the liquid within the selected crests. The preferred addressing mechanisms have sufficient spatial resolution to address a single crest substantially independently of its neighbors. 
     Discrete addressing mechanisms having a plurality of individual addressing elements (85) are especially attractive for liquid ink printing and similar applications, not only because their individual addressing elements may be spatially fixed, but also because the spatial frequency of their addressing elements may be matched to the spatial frequency (wavelength λc) of the capillary wave. Such frequency matching enables selected crests of the capillary wave to be addressed in parallel, such as for line printing. Preferably, the capillary wave for a printer is a spatially stabilized standing wave, so that the crests and troughs of the capillary wave are locked in predetermined spatial locations.
Patent EP-0252583-A2 (EP)
Inventor: CRAWFORD PETER FREDERICK
IPC: F16D13/62
Filed: 1987-04-28
Abstract: A friction material and carrier assembly 2 (which is to be used in the construction of a driven plate of a dry friction clutch) comprises a carrier plate 4 having radially extending spokes or paddles l4 which are elastically pliable axially of the carrier plate. Two annular friction facings 20 and 22 which are resilient and capable of flexing are bonded by respective layers 24 of silicone rubber to opposite sides of the paddles. Each rubber layer 24 can be formed by strips or beads of rubber for example the layer bonding facing 22 to the paddles consists of annular strips 24A, 24B, 24C, 24D and 24E. The paddles l4 arrangement is capable of sinuous flexing circumferentially of the assembly 2, and when the assembly is in a driven plate in a clutch applying the clamp load specified for the clutch, the overall axial thickness of the combination formed by the paddles l4 and rubber layers 24 and the friction facings 20 and 22 is reduced by between 0.05 mm and 2.00 mm.
Patent EP-0246068-A2 (EP)
Inventor: LOFTUS FRANK
IPC: C07D487/04
Filed: 1987-05-12
Abstract: A process for preparing compounds of the formula 1:
     wherein X is sulphur, oxygen, methylene or sulphinyl (R or S configuration), R 3  is hydrogen or methoxy, R 4  is an optionally substituted (1-4C) alkyl group, Y is hydrogen or a carboxyl protecting group and Q is an optionally protected amino group or an acylamino group, which comprises reacting a compound of formula (II)
     with a compound of formula (III)
     wherein R 4  is as defined above and W and Z represent hydrogen atoms or a group or groups removable to yield the compound of formula (I). The compounds of the formula I are useful intermediates in the preparation of cephalosporin antibiotics.
Patent EP-0246117-A2 (EP)
Inventor: BALLOU JON M
IPC: H01L21/683
Filed: 1987-05-18
Abstract: Apparatus for programmably orienting a semiconductor wafer. The orienting apparatus is employed in an ion implantation system so as to limit channeling or to control the depth of penetration of impinging ions. The apparatus is associated with a processing chamber door and includes a rotatable vacuum chuck for engaging the wafer and a stepper motor for rotating the vacuum chuck and the wafer to a preselected angular orientation. The wafer is first rotated to a selected initial orientation relative to a sensor that senses the passage of an edge of a wafer orienting indentation, typically a wafer flat. The wafer is then rotated through a calculated angular displacement to a desired, preselected angular orientation. The orienting apparatus includes a microprocessor for calculating the angular increment between the initial wafer orientation and the preselected angular orientation. The wafer orientation apparatus may be utilized in a system for the vertical transfer of wafers between a cassette and a processing chamber. The wafer orientation apparatus may also be used in a system wherein wafers are oriented in horizontal transfer system.
Patent EP-0262952-A2 (EP)
Inventor: ITO KENJI
IPC: G11B15/46
Filed: 1987-09-30
Abstract: A digital servo system comprising source means of a clock signal, counter means, latch means which latches a predetermined lower bits of the output of the counter means, means for obtaining a servo control output in response to the latch means, and sequencer means which is applied with a digital data of which the pulse interval or the phase is processed, and controls passing or nonpassing of the clock signal to the counter means in response to the digital data and obtains a latch pulse for the latch device. The servo system is characterized by that the servo system further comprises a circuit for stopping the input of the clock signal to the counter by controlling the counter when the digital data is applied, a latch circuit for latching a most significant bit of the predetermined lower bits, a sequencer for shifting a specified bits of the count data of the counter, and a linear range identifying circuit for identifying the upper limit and lower limit of the servo control output and the linear range between them using the output of the latch circuit for the most significant bit and the shifted specified bit output of the counter.
Patent EP-0270246-A2 (EP)
Inventor: NISHIO TAICHI
IPC: C08L51/06
Filed: 1987-10-30
Abstract: A thermoplastic resin composition which comprises:
     100 parts by weight of a composition comprising: (A) 5 to 95% by weight of a polyphenylene ether prepared by oxidation polymerization of at least one phenol of formula:
     wherein R 1 , R 2 , R 3 , R 4  and R 3 , which may be identical or different, represent hydrogen, a halogen or a substituted or unsubstituted hydrocarbon group, with the proviso that at least one of R, to   R 5  is hydrogen; and (B) 95 to 5% by weight of a polyamide; and   5 to 100 parts by weight of (C) a copolymer of an ethylene-α -olefin copolymer rubber, an alkenyl aromatic compound and an unsaturated carboxylic acid or an anhydride thereof.
Patent EP-0272851-A2 (EP)
Inventor: WISNER TERRANCE
IPC: F16B7/20
Filed: 1987-12-10
Abstract: A flexible coupling (12) comprises a resiliently yieldable polyurethane bushing (13,13a) having a cylindrical surface (14) and a plurality of small lobes (18,18a) over that surface and projecting radially into frictionally binding engagement with the confronting cylindrical surface (11,11a) such as a steel rod or bracket. The yieldability of the polyurethane enables limited relative oscillatory movement between the rod or bracket and bushing. The rounded distal ends of the lobes tend to roll in non-sliding frictional contact with the rod or bracket during such movement and essentially eliminate noise from the coupling.
Patent EP-0273684-A2 (EP)
Inventor: HAYASHI KEIJIRO
IPC: A63B102/04
Filed: 1987-12-22
Abstract: The frame of a racket for playing tennis, badminton or squash incorporated between two parts thereof a non-liquid substance which is perfumed with a scent of animal and/or plant and/or synthetic nature. In a preferred embodiment the two sides of the frame are interconnected near the handle by a yoke 10 made in these inter-abutting sections 11, 12 and a perfumed substance in the form of a micro-encapsulated powder is disposed between the abutting faces of the sections A gap is formed for an instant between said faces when the playing piece is struck, permitting release of scent for a correspondingly short time.
Patent EP-0239428-A2 (EP)
Inventor: BEAURAIN ANDRE
IPC: H01R4/24
Filed: 1987-02-04
Abstract: One-part insulation-piercing branch connector comprises a case (10) made of an insulating material of high mechanical strength receiving an electrical connection piece (12) made of a material which is a good conductor of electricity, this connection piece being provided with blades (14, 16) for the piercing of the insulations of, respectively, the main conductor (P) and the branch lines (D) which have to be connected to the main conductor, and housings (21) receiving the branch lines, into which the threaded rods (26) of the clamping screws of the branched lines engage; an insulating and sealing cover (18) for the said case, and a clamping stirrup (20) made of an insulating material being positioned on the said case, the clamping of the said stirrup onto the main conductor in place in the case being provided by a torque-limiting screw (34), the stirrup bearing on a rear surface (44) forming a hinge between the stirrup and the case, and the clamping, onto the branch lines, being carried out with the help of an insulating driving screw (24, 26, 28). <IMAGE>
Patent EP-0276831-A2 (EP)
Inventor: NAKAMURA AKITO
IPC: C08L83/07
Filed: 1988-01-27
Abstract: The silicone rubber obtained by curing in the presence of a platinum-containing catalyst a composition comprising an organopolysiloxane containing a plurality of lower alkenyl radicals and a organohydrogensiloxane consisting essentially of R₃SiO 1/2  units, R₂SiO units, RHSiO units, and RSiO 3/2  units in a specified molar ratio is uniquely suitable as the coating material for the press roll in the fixing assembly of an electrophoto­graphic copier.
Patent EP-0290881-A2 (EP)
Inventor: KUBBUTAT ALBERT F
IPC: C08L63/00
Filed: 1988-04-29
Abstract: In order to produce lightweight construction elements, for example in board form, which have low density, high mechanical strength and good insulation properties, 70-95 parts by weight of open-pore expandable glass beads having a particle fraction of from 0.2 to 20 mm and a density of between 0.2 and 0.55 g/cm<3> are mixed with 4-30 parts by weight of an epoxy binder which comprises bisphenol resin to which 0.5-5 parts by weight of a polysiloxane have been admixed, and an amine curing agent. During this process, the expandable glass beads are wetted on their surface. They are introduced into a female mould corresponding to the shape of the construction element, and heat is then supplied, causing reaction of the amine curing agent to react with the polysiloxane and the epoxy resin and formation of an epoxide foam between the expandable glass beads.
Patent EP-0296543-A2 (EP)
Inventor: UHRIG HEINZ
IPC: C09K23/00
Filed: 1988-06-22
Abstract: The invention relates to surface-active agents of the formula
 A-[(X-O)n-Y-Z]m
 where A is a radical of a modified or unmodified natural resin or an esterification product thereof with a polyhydric alcohol, X is 1,2-ethylene or -propylene, Y has the same definition as X or is -CH2CHOHCH2-, Z is OH or (Ia>   (-NH-Q)a-NR-(Q-NH-)bH
 where R is hydrogen or C1-C24-alkyl or (-CH2CH2O)p-H, where p is 1-100, or (-Q-NH)c-H, Q is C1-C24-alkylene, which may be interrupted by oxygen atoms, a is 0-5 and c is 0-5, at least one Z not being OH,
 n is from 0 to 150, and m is from 1 to 5. 
<??>The compounds are obtained by alkoxylating resins or esterification products thereof with polyhydric alcohols and, after hydroxyl groups have been converted into suitable leaving groups, reacting with amines of the formula Z-H. The products are suitable in particular for use as coupling aids, dispersants and finishing aids for colorants.
Patent EP-0305717-A2 (EP)
Inventor: BUTHMANN PETER DR-ING
IPC: F02B33/36
Filed: 1988-07-20
Abstract: The exhaust turbocharging of combustion engines and the super- charging with compressors on the positive displacement principle represents the state of the art. Exhaust turbochargers, mechanically driven turbochargers and compressors which work on the positive displacement principle, such as, for example, exhaust gas screw chargers and state-of-the-art screw chargers, have disadvantages. 
<??>A supercharging unit according to the invention for supercharging combustion engines is described which is composed of a compressor on the positive displacement principle (KV), coupled to the combustion engine and an exhaust gas turbine coupled to the KV. By means of this arrangement a relatively high charging pressure is generated by the KV even at low engine revolutions. At the same time the energy of the exhaust gas flow is fully utilised by the exhaust gas turbine and power transmitted to the KV. At higher revolutions the exhaust gas turbine can deliver more power than the KV needs. In this case the excess power is delivered to the combustion engine. 
<??>The supercharging unit according to the invention is suited to the supercharging of combustion engines, in particular motor vehicle engines.
Patent EP-0302525-A2 (EP)
Inventor: BRIDGES ALEXANDER JAMES
IPC: C07D215/56
Filed: 1988-08-05
Abstract: A novel series of quinolone carboxylic acid derivatives of the formula
      for use as antibacterial agents are described. Methods for making the compounds, methods of using the compounds and compositions containing them are also described. Certain novel intermediates are also described.
Patent EP-0304014-A2 (EP)
Inventor: DORFMAN JAN L
IPC: B65D51/24
Filed: 1988-08-16
Abstract: A liquor bottle capping assembly (10) comprising a perforated member (22) fixedly attachable to the liquor bottle (12) in covering relationship with a threaded opening (14) in the liquor bottle for preventing flame propagation into the liquor bottle.
Patent EP-0313776-A2 (EP)
Inventor: HERRMANN LOTHAR DIPL-ING
IPC: H04M1/72
Filed: 1988-09-07
Abstract: A charging device for a cordless telephone is proposed which is independent of the charging facility provided at a fixed station, is not tied to one location and offers convenience to the user of a cordless telephone. The additional charging device is not connected to the telephone network, and the rest for the cordless telephone is designed so that the operating controls are accessible to the user when the cordless telephone lies in the rest for the purpose of charging its battery. A loudspeaker unit located in the charging device is connected via additional contacts to the cordless telephone. The charging device for a cordless telephone which is independent of the fixed station allows the cordless telephone to be charged and safely stored anywhere within its transmission and reception range, while remaining convenient to use during charging. <IMAGE>
Patent EP-0308881-A2 (EP)
Inventor: GANTER WOLFGANG
IPC: G04G7/02
Filed: 1988-09-21
Abstract: An autonomous radio clock (11) with display of information on reception conditions is intended to provide the consumer with a higher reliability concerning the correctness of the instantaneous time display (19). For this purpose, an analog or digital, if necessary multi-digit digital display element (16) is provided which presents additional information on the reception quality expressed as a statement on the time interval that has passed since the most recent checking and, if necessary, correction of the time display (19) on the basis of time information (10) received via radio and decoded. When the display element (16) is incremented in time with the switching on of the receiver (12), it always presents the lowest possible display if the radio reception conditions are so good that each switching on of the receiver leads to obtaining valuable time information (10). This certainty of the updating of the time display (19) suits the clock (11) particularly for design as an alarm clock, which then need only be equipped with setting elements for inputting the alarm time and interrupting or switching off the alarm, or, if necessary, for switching over an additional display (22) between the prescribed alarm time and data information obtained from the radio information (10) or the autonomous operation of the clock (11). <IMAGE>
Patent EP-0313818-A2 (EP)
Inventor: SUGIURA SATOSHI PIONEER ELECTR
IPC: G11B7/095
Filed: 1988-09-22
Abstract: Reduction of a number of parts required for servo control in an optical disk reproducing apparatus is achieved by deriving information relating to errors caused by warp or tilt of an optical disk from other error signals produced by other servo devices within the apparatus. A beam spot used to irradiate a disk surface is oscillated, and a frequency and amplitude compo­nent arising from this oscillation is extracted from the output of a light detector. The information provided by the frequency and amplitude may be used to compensate for tilt and warp, even though the detected signals are used for tracking and focusing servo devices in the optical disk apparatus. The technique is applicable to various types of discrete producing approaches, including a push-pull, a heterodyne system, and a three-beam system.
Patent EP-0319665-A2 (EP)
Inventor: NEUGEBAUER PETER
IPC: B65D88/12
Filed: 1988-10-07
Abstract: A container, which has a base plate, two end walls and a hood, is guided in the region of the base plate. The hood is constructed as a rigid part and is mounted so as to be positionable in relation to the base plate. The hood is mounted so as to be displaceable at least in the direction of a longitudinal axis of the base plate relative to the latter. The hood has a bearing which extends in the longitudinal direction of the base plate and has at least at one point of its longitudinal extension a degree of freedom in a vertical direction extending perpendicular to the longitudinal direction. At least one of the two end walls, as fixed end wall, is connected fixedly to the hood and detachably to the base plate. The end wall, connected fixedly to the hood, is sealed off by a seal in relation to the base plate. The seal is provided along a lower boundary bounding the fixed end wall in relation to the base plate.
Patent EP-0312886-A2 (EP)
Inventor: RUF ERICH DR
IPC: C03C17/25
Filed: 1988-10-11
Abstract: The preparations contain tin(IV) chlorides optionally containing organic groups and contain tin(II) fluoride as the only dopant. The preferred preparation comprises
 from 30 to 89% by weight of tin(IV) chlorides optionally containing organic groups,
 from 1 to 5% by weight of tin(II) fluoride,
 from 10 to 55% by weight of a polar organic solvent and
 from 0 to 10% by weight of water. 
<??>The preparations according to the invention are simple to handle industrially and do not contain any aggressive or toxic compounds. Their constituents are readily accessible, related and inexpensive chemicals, but nevertheless allow the production of high-quality surface coatings on glass or glass ceramic.
Patent EP-0312032-A2 (EP)
Inventor: KITAMURA IKUO
IPC: C01B31/30
Filed: 1988-10-12
Abstract: Iron carbide fine particles consisting essentially of iron carbide, which are characterized in that, in the step of the variation of the weight under the condition of combustion, the increase of the weight in the equilibrium after arrival at the maximum weight is 22% or less, on the basis of the weight before combustion. In which (a) after fine particles of iron oxyhydroxide or iron oxide have been or have not been contacted with a reducing gas containing no carbon atom, (b) the particles are contacted with a carburizing gas or a mixture of a carburizing gas and a reducing gas containing no carbon atom at a temperature of from 250 to 395°C to prepare iron carbide fine particles, and (c) the resulting iron carbide fine particles are contacted with a carburizing gas at a temperature higher than the said temperature by 5 to 20°C for 0.5 to 5 hours.
Patent EP-0318752-A2 (EP)
Inventor: WOLFRUM JURGEN PROF DR
IPC: G01N21/35
Filed: 1988-11-14
Abstract: In a process and a system for (trace) gas analysis, in particular for NH2 analysis in flue gases from power stations or industrial exhaust gases, a laser is switched to and fro between its two inherent resonance lines, one of the wavelengths corresponding to an absorption maximum and the other wavelength to an absorption minimum of the gas to be detected. The absorbance E and, consequently, the concentration of the gas to be analysed is derived from the ratio of the intensity attenuation at the two wavelengths. 
<IMAGE>
Patent EP-0327717-A2 (EP)
Title: Verfahren und Anlage zur Wärmebehandlung von feinkörnigem Gut
Inventor: DURR MANFRED DIPL-ING
IPC: F27B7/20
Filed: 1988-12-20
Abstract: Die Erfindung betrifft ein Verfahren sowie eine Anlage zur Wärmebehandlung von feinkörnigem Gut unter Verwendung einer Calcinierzone (9), die zwischen einer Vorwärmzone (1) und einer Fertigbrennzone (4) angeordnet ist, wobei ein Teil des Gutes nach Durchsetzen der Calcinierzone (9) in Abluft (7) der Kühlzone eingeführt und mit dieser zwecks Rezirkulation erneut der Calcinierzone (9) zugeleitet wird. Man erreicht auf diese Weise einen guten Ausbrand des in der Calcinierzone (9) eingesetzten Brennstoffes sowie eine hohe Entsäuerung des Gutes.
Patent EP-0278616-A2 (EP)
Inventor: BRUCE SUE
IPC: E21B49/00
Filed: 1988-01-25
Abstract: A drilling fluid to be circulated through a borehole as it is drilled is produced by mixing solid and liquid drilling fluid components in such proportions that the density of the fluid has a selected value which lies between upper and lower limits (c) calculated for all depths of the borehole to be drilled. The lower limits satisfy a shear failure criterion for the material forming the wall of the borehole and above which influx of pore fluid does not occur, and the upper limits satisfy either the same shear failure criterion or a tensile failure criterion, depending on which of the two criteria predicts the lower upper limit. Upper and lower shear failure values (b) are calculated as a function of depth and tensile failure values (a) are calculated as a function of depth. The calculations include determining the in-situ stress state at the site of the borehole, and calculating the stresses which will occur at the borehole wall as a function of depth and drilling fluid density.
Patent EP-0279653-A2 (EP)
Inventor: DIXON PAUL H
IPC: B65B13/02
Filed: 1988-02-17
Abstract: A tool for tightening an annular clamping band (25) around a hose (22) includes a substantially V-shaped forming punch (55) adapted to be pivoted to an active position by a reciprocating pneumatic actuator (32). As the punch (55) pivots to its active position, it rams part of the free end portion (25 a ) of the band (25) into a substantially V-shaped throat (75) formed in an anvil (56). The actuator (32) then shifts the punch (55) and the anvil (56) in a direction applying tension to the band (25) as the band (25) is drawn between and is reshaped by the punch (55) and anvil (56).
Patent EP-0282217-A2 (EP)
Inventor: ATKINSON DAVID IAN HEATON
IPC: G01F1/80
Filed: 1988-03-01
Abstract: A coriolis-type mass flow transducer comprises a straight tube 10 through which a fluid whose mass flow rate is to be measured is arranged to flow while the tube is set into transverse resonant vibration in its second overtone mode. Mass flow is determined by measuring the phase difference between the vibration at two points along the tube 10. Such a transducer exhibits an offset at zero flow, which can vary with time. These variations are minimised by minimising the damping effects on the tube 10 of bellows 6,7 used to connect tube 10 in a flow line, and then corrected by measuring the amplitude ratio of the vibrations at the two points, and correcting the initially-determined offset in dependence upon changes in this amplitude ratio.
Patent EP-0287308-A2 (EP)
Inventor: COLEGROVE GEORGE T
IPC: C11D3/22
Filed: 1988-04-11
Abstract: Viscous solutions of NMP are described which comprise up to about 90% NMP. The viscosifying agent is rhamsan gum.