baber/WOPTO huggingface dataset:
Patent EP-0282339-A2 (EP)
Inventor: STAPLEY GERALD
IPC: G07C1/20
Filed: 1988-03-11
Abstract: A key holding system comprises one or more locks (12) responsive to key codes stored by a programmable key (24) to enable the selective operation of that lock. The key is programmed by a key programmer (22) carried by the key holder or installed in a vehicle (20). A database of key codes related to individual locks is maintained at a remote station (30) and the code required by the key to operate a particular lock is communicated, subject to any required validation, eg, as to the identity of the key holder, to the key programmer. Various methods of increasing security of the system are disclosed.
Patent EP-0288271-A2 (EP)
Inventor: JOSTY PETER LYN
IPC: C09K17/40
Filed: 1988-04-20
Abstract: It is known to treat land with various chemicals to prevent the formation of surface crusting. Generally, these compounds are expensive. Applicant has found that surface crusting may be significantly reduced by coating the ground with a highly filled compound.
Patent EP-0295142-A2 (EP)
Inventor: ITANO KIYOSHI
IPC: H03K19/177
Filed: 1988-06-10
Abstract: A programmable logic device includes an AND array (31), an OR array (32), a buffer circuit (33) connected between the AND array (31) and OR array (32); and a number of decoder arrangements operatively connected to the AND array (31) and OR array (32). By constituting the buffer (33) such that the AND array (31) and OR array (32) are electrically associated even in a write operation of data, namely, the buffer (33) is brought to an enable state, a logic verify of the buffer (33) becomes unnecessary and, accordingly, a verify/check of written data can be carried out both easily and efficiently.
Patent EP-0303481-A2 (EP)
Inventor: STEINBERG DANNY DAVID CHARLES
IPC: A41D1/00
Filed: 1988-08-11
Abstract: The invention comprises five components: a fastener, which is affixed or part on an article of clothing or some other object; a detection system, which detects whether the fastener has been left undone; a warning system, which warns the user that the fastener is undone; a timer circuit, which is activated when the detectors signal that the fastener has been left undone and thus controls the onset of the warning system; and the power source, that provides for the functioning of the detection system, the warning system and the timer circuit. This invention has the characteristic of warning the user that a fastener has been left undone and thus may prevent the occurrence of embarrassment, injury, loss or damage.
Patent EP-0323003-A2 (EP)
Inventor: DOREY LYNN YVETTE
IPC: C04B41/88
Filed: 1988-09-14
Abstract: The invention relates to a method of protecting thin films of Y₁Ba₂Cu₃0 7-δ  films from premature aging (resulting in a deterioration of superconducting properties) on atmospheric exposure, by applying a layer of silver which is impervious to water vapour but pervious to oxygen.
Patent EP-0310397-A2 (EP)
Inventor: KONDO TETSUYA
IPC: G11B7/2531
Filed: 1988-09-29
Abstract: An information recording disk for recording an information signal along a track defined by a depression (13) on the disk as a change of physical property of a recording material deposited on the track comprises a disk-shaped glass substrate (16) made of a glass and carries a groove (13′) corresponding to the track. The groove has a surface roughness substantially smaller as compared to the surface roughness caused at a bottom surface of a groove on a silica glass substrate when both the disk-shaped glass substrate and silica glass substrate are dry-etched under same conditions. The disk-shaped glass substrate comprises SiO₂ component and one or both of Al₂O₃ and BaO components with substantially no alkali components. Further, a recording layer (18) comprised of the recording material which changes in physical property responsive to a projected energy beam is deposited on the substrate (16) such that the depression (13) is formed in correspondence with the track.
Patent EP-0317339-A2 (EP)
Inventor: DUGSTAD ARNE
IPC: G01N23/222
Filed: 1988-11-18
Abstract: A method and an apparatus for gauging the amounts of material which are lost due to corrosion and/or erosion in the course of a determined period of time, utilise a piece of material (1) which has previously been made radioactive, and a radiation intensity meter (3, 4) disposed at a measuring site a fixed distance from said piece of material for measuring the radioactive radiation from said piece both at the beginning and at the end of said period of time. Each of said measurements is calibrated by means of a further radiation source (6) disposed for controllably adopting either a most radiation screened position or alternatively a least screened position with respect to a radiation screen (2) and thereby providing a known radiation intensity at the measuring site in both positions. The least radiation screened position preferably provides complete unscreened radiation intensity at the measuring site, whereas the most screened position provides negligible radiation intensity at said site. The measuring results in the two positions are mutually compared in order to deduce the contribution of said piece of material (1) to the combined radiation source. The further radiation source is then constituted by a calibration member (6) composed of the same material as the piece of material (1) which is exposed to corrosion and/or erosion, the calibration member being radioactivated at the same time and by the same activation process as said piece (1). The calibration member (6) is preferably dimensioned to provide at all time the same radiation intensity at the measuring site as a predetermined material loss from said piece of material (1),  e.g.  a prefixed thickness reduction of the same.
Patent EP-0298897-A2 (EP)
Inventor: LARRABEE JOHN RONALD
IPC: F02K3/06
Filed: 1988-07-07
Abstract: The stator assembly for a gas turbine engine has a support structure (34) and a stiffening ring (46) extending about the support structure (34). Various construction details which increase the rigidity of the support structure (34) and enable the stiffening ring (46) to accept axial and radial loads are de­veloped. In one embodiment the stiffening ring (46) is the seal ring (52) for a seal end (74). In one parti­cular embodiment, the thermal expansion characteristic of the support structure (34) is greater than the thermal expansion characteristic of the stiffening ring (46) to insure that the stiffening ring (46) is in tension under normal operative conditions of the engine.
Patent EP-0332806-A2 (EP)
Inventor: MATTEI VITTORIO
IPC: B08B3/00
Filed: 1989-01-17
Abstract: A valve device for controlling flow of a sterile fluid production material (20) from a supply pipe (20) to a delivery pipe (6) comprises a first valve (1) having a first valve member (1a) for opening and closing a flow path from said supply pipe (11), a second valve (2) coaxial with said first valve (1) and having a second valve member (2a) for opening and closing a flow path into said delivery pipe (6), a chamber (5) formed between said first and second valves (1,2) and a steam inlet pipe (3) and steam outlet pipe (4) connected at opposite sides to said chamber (5) substantially at right angles to the common axis of said valves (1,2) for conducting a flow of steam through said chamber (5) for cleaning and sterilizing said valve members (1a,2a) when in the closed position. When using the valve in a device to feed sterile fluid production material (20) to processing stages said steam inlet pipe (3) of the valve device (A) is connected to a steam source (31) through a first steam valve (13), said steam outlet pipe (4) is connected to a discharge
Patent EP-0340669-A2 (EP)
Inventor: YONEDA RYOZO INST OF BIO-ACTIV
IPC: A01K1/00
Filed: 1989-04-28
Abstract: Heated air or cooled air introduced into an air fan chamber (10) provid­ed in a housing (1) is circulated in the housing by an air fan (11). The housing is vertically divided into a plurality of chambers (9) by reticulate partition shelves (8) and a cage contain­ing a small animal is put into and out of each chamber. The housing is provided with a commutator plate (12) for controlling the circulating air, and/or a temperature detector (16), a humidity detector, a control unit for controlling the housing in accordance with signals from the detectors, and a brightness-controlling device.
Patent EP-0342705-A2 (EP)
Inventor: MIYAZAWA OSAMU
IPC: G04C3/00
Filed: 1989-05-19
Abstract: An electronic watch includes a means (10) for accumulating rotational energy of an intermittently driven actuator (1, 2, 4) and a control means (14, 17) for releasing the rota­tional energy. The accumulating and control means are coaxially provided apart from the central spindle (3) mounted with a hand (16). The control means involves a rotor (14) immersed in a viscous fluid (17). The accumu­lating means involves a hair spring (10) or a pair of permanent magnets.
Patent EP-0346854-A2 (EP)
Inventor: NAKATA YUTAKA
IPC: F21S8/12
Filed: 1989-06-13
Abstract: The projector-type head lamp for vehicles comprises a reflector (30) having an optical axis (Z), a lamp bulb (32), as light source, having a filament (F) horizontally disposed in a direction perpendicular to the optical axis, and a convex lens (34) disposed in an area defined by the light beam shaped by the rays of light reflected by the reflector and having an optical axis nearly coincident with the optical axis of the reflector. The inner reflecting surface (31) of the reflector having a main reflecting area including a part of a spheroid having the first focus near the center of the filament (F) as light source and the second focus near the center of the cut-off edge (35), at least parts of the main reflecting area located above or below the horizontal plane in which the optical axis lies and which define multiple largely slanted filament images on the screen being formed as sub reflecting areas having such reflecting characteristics as shift the filament images horizontally. This projector-type head lamp provides a horizontally elongated light distribution pattern of which the profile line is nearly horizontal on this side and which is contributed to the effective illumination.
Patent EP-0351700-A2 (EP)
Inventor: WALDSCHMIDT HORST
IPC: G01F23/26
Filed: 1989-07-12
Abstract: The arrangement for capacitive fluid level measurement in a container made of electrically non-conductive material has two capacitive probes, which are arranged at a distance from one another in the container in such a way that the capacitance between the two probes depends upon the fluid level. Arranged in the vicinity of the container is a measuring transducer which is connected to an evaluation device separated therefrom via a connecting line and converts a high-frequency alternating current that is dependent upon the probe capacitance into an electrical measured value signal that is suitable for transmission via the connecting line, from which signal the fluid level to be measured is determined in the evaluation device. Inserted into the connecting line between the measuring transducer and the evaluation device is a filter arrangement which prevents the transmission of the high-frequency alternating current and allows the transmission of the measured value signal. <IMAGE>
Patent EP-0355810-A2 (EP)
Inventor: MIYAZAKI SEIICHI
IPC: G03F7/038
Filed: 1989-08-23
Abstract: A process for the production of a patterned thin film that comprises building-up a polymer compound, optionally together with a known LB film compound, by the Langmuir-Blodgett technique and irradiating the built-up film thus formed with an excimer laser of a high energy density is disclosed. According to the process of the present invention, a patterned thin film excellent in heat resistance, chemical resistance and mechanical properties can be obtained without requiring any troublesome development procedure.
Patent EP-0369282-A2 (EP)
Title: Niederspannungsschaltgeräte-Sinterkontaktwerkstoff der Energietechnik, insbesondere für Motorschütze
Inventor: HAUFE WOLFGANG
IPC: H01H1/02
Filed: 1989-11-06
Abstract: Aus einem inneroxidierten Legierungspulver hergestellte Sinterkontaktwerkstoffe der Konstitution AgSnO2Bi2O3CuO sind bekannt. Gemäß der Erfindung enthält der Werkstoff als weiteres Oxid wenigstens Zirkonoxid und gegebenenfalls zusätzlich Wismutoxid in Massenanteilen von vorzugsweise zwischen 0,1 und 5 % vorhanden. Zur Herstellung dieser Werkstoffe wird Zirkonoxidpulver und gegebenenfalls zusätzlich Wismutoxidpulver dem inneroxidierten Legierungspulver aus AgSnO2Bi2O3CuO zugemischt. Mit einem solchen Kontaktwerkstoff wird insbesondere das Übertemperaturverhalten in Motorschützen verbessert.
Patent EP-0335517-A2 (EP)
Inventor: VOLZ LEROY ALLEN
IPC: G06F3/06
Filed: 1989-03-08
Abstract: A servo address system for a computer disk drive unit having a plurality of memory storage disks comprises a servo head (12) in operative association with a dedicated servo surface (14) provided on one of the memory storage disks (16). Servo data is recorded on the dedicated servo surface in generally concentric tracks ("0" to "7") and defines a unique track address for each of the concentric tracks readable by the servo head. The servo data comprises a succession of syn­chronising bits (45) recorded in each of the tracks to define there-between a plurality of bit frames (44), and a plurality of servo bits ("A" to "D") recorded within each of the bit frames in one of first and second distinct patterns for detection and reading by the servo head in binary code. A selected successive plurality of the bit frames for each of the tracks defines an address and the servo bits thereof are recorded in a regular pattern which repeats for each address, wherein each address is represented by a unique plurality of digits in binary code.
Patent EP-0358487-A2 (EP)
Inventor: TOMII TSUYOSHI
IPC: B41J2/165
Filed: 1989-09-06
Abstract: Apparatus for sealing the front surface (1a) of a printing head (1) of an ink jet printer when the latter is not in operation, said apparatus comprising a seal means (6) adapted to make an air-tight seal with the said front surface (1a) and to form therewith an evacuable space (7); and conduit means (8,9) communicating with said space (7), the conduit means (8,9) being provided with suction means (10), by means of which ink may be sucked out of the printing head (1), and with valve means (11) which, when open, brings said space (7) into commuunication with the exterior of the seal means 6) characterised by control means (14) for controlling operation of the suction means (10) and of the valve means (11), the control means (14) in use first operating the suction means (10) while the valve means (11) is closed so as to reduce the pressure in the space (7) to an increasing extent throughout a first period of time (t₁); thereafter effecting preliminary opening and closing actions (I) of the valve means (11) during a second period of time (t₂); and thereafter effecting further opening and closing actions (II) of the valve means (11) at least once after a third period of time (t₃) has elapsed from the end of the second period of time (t₂), the third period of time (t₃) being shorter than the first period of time (t₁).
Patent EP-0372837-A2 (EP)
Inventor: MILLER DAVID WILLIAM
IPC: B42D15/10
Filed: 1989-11-30
Abstract: An ID card which comprises an opaque base which has adhered thereto a sheet which comprises an easy to recognise representational image (10) of the person to whom the card relates and at least one modulated image (11) which bears a recognisable relationship to the representational image but which has been altered with respect to its density and/or colour and/or spatial characteristics. 
     Preferably the altered image has been modulated electronically.
Patent EP-0376873-A2 (EP)
Title: Apparatus for digitizing the contour of a dental  surface, particularly useful for preparing a dental crown
Inventor: SHAFIR AARON
IPC: A61C5/77
Filed: 1989-12-06
Abstract: Apparatus for digitizing the contour of a three-di­mensional surface of an object includes a handle (20), a probe (26) carried by the handle (20) and movable along three independent axes to contact sample points on the three- dimensional surface, and a positional sensor for sensing the position of the handle (20) along the three axes and for outputting positional values. The probe(26) includes an arm (28) deflectable during the movement of the probe (26), which deflections are sensed by a sensor. A digital processor processes the positional values only when one of the deflection sensors senses a deflection in its respective arm above a predetermined threshold value, and modifies the positional values by the deflection values.
Patent EP-0384177-A2 (EP)
Inventor: SMITH THOMAS BASIL
IPC: G06F11/18
Filed: 1990-02-01
Abstract: A technique for automatically removing the skew between multiple correlated synchronous data streams provides Vernier Skew compensation. The data streams are marked into data frames under the control of local synchronized transmitter clocks. The data streams received at a receiver are loaded into FIFO registers under the control of recovered clocks. Data from the FIFO registers are unloaded under the control of a local receiver clock synchronized with the transmitter clocks. The frame marked data in the data streams is checked for a synchronization fault at the receiver. When a synchronization fault is detected in a data stream, the loading and unloading of the FIFO register corresponding to that data stream is inhibited and then the FIFO register is purged. A frame header in the data stream is detected and then the loading of the FIFO register is enabled with the first value to arrive which is marked as a frame header. At the next succeeding time for an expected frame header, normal unloading of the FIFO register is initiated. An alternate embodiment substitutes bi-port register arrays for the FIFO registers providing greater simplicity and flexibility.
Patent EP-0396150-A2 (EP)
Inventor: RAVIPATI SITARAMAISH
IPC: B24D3/28
Filed: 1990-05-05
Abstract: Coated abrasive material (10) for fine finishing applications including second fining ophthalmic app­lication, having patterned surface coating of abrasive grains (20) dispersed in radiation-cured adhesive binder (22). The patterned surface coating is defined by a plurality of formations (28) of such abrasive/binder each having an inner bottom edge (30) defining an area devoid of coated abrasive, a top edge (34) defining a somewhat larger area devoid of coated abrasive and an inner wall (38) connecting the top and bottom edges.
Patent EP-0428828-A2 (EP)
Inventor: JUNG FOLKER
IPC: G03C5/08
Filed: 1990-08-03
Abstract: In order to be able to distinguish coloured copies from original documents, e.g. driving licences, the original is printed with one fluorescent and one non-fluorescent offset ink, these inks having approximately the same colour shade, e.g. the colour shade orange. In the copy, the fluorescent colour is reproduced in the incorrect shade, e.g. in the case of orange the colour seen will now be mid-brown, so that the colours orange and mid-brown appear on the copy.
Patent EP-0416650-A2 (EP)
Inventor: LEIMETER JOHANN DIPL-ING FH
IPC: B23Q11/08
Filed: 1990-09-07
Abstract: The lathe has two compound-slide arrangements (20), which each have a Z-slide (22), guided on the machine bed (10), as well as a Y-slide (26) and an X-slide (32) on which a turret head (34) is mounted. The compound-slide arrangements (20) are each enclosed by a parallelepiped-shaped casing (50) which is fastened to the associated Z-slide (22) and has side walls (52, 54), parallel to the direction of movement of the Z-slide (22), as well as a front wall (56) normal to this direction of movement. At least part of each front wall (56) is movable in its plane. The work space (A) of the lathe is defined by a fixed frame-like end wall (60) through which the side walls (52, 54) of the casings (50) extend in a sealed-off manner. Each turret head (34) has a collar (36) which extends in a sealed-off manner through the movable part of the front wall (56) of the associated casing (50). <IMAGE>
Patent EP-0421488-A2 (EP)
Inventor: TOKUNAGA MASAAKI
IPC: C22C38/00
Filed: 1987-07-22
Abstract: A permanent magnet having good thermal stability, consisting essentially of the composition represented by the general formula: 
R(Fe 1-x-y-z-u Co x B y Ga z M u ) A   
wherein R is Nd alone or one or more rare earth elements mainly composed of Nd, Pr or Ce, part of which may be substituted by Dy, Tb or Ho, M is one or more elements selected from Nb, W, V, Ta and Mo, 0≦x≦0.7, 0.02≦y≦0.3, 0.001≦z≦0.15, 0.001≦u≦0.1 and 4.0≦A≦7.5.
Patent EP-0435300-A2 (EP)
Inventor: IWANO AKIHIRO
IPC: H04R27/00
Filed: 1990-12-27
Abstract: In a sound system having a sound source (11) for generating sound signals, a low-impedance amplifier (12) for amplifying the generated sound signals, and high-impedance loudspeakers (24) for reproducing audible sound from the amplified sound signals, an impedance conversion device (15) having a step-up transformer section is disconnectably connected between the amplifier and the high-impedance speakers. The output side of the low-impedance amplifier is also connected directly to low-impedance loudspeakers. . Thus the sound system can be operated to selectively broadcast either monaural sound or binaural stereo music of high quality.
Patent EP-0400772-A2 (EP)
Inventor: HANES DAVID ALFRED
IPC: F16H7/08
Filed: 1990-02-02
Abstract: A belt tensioner (26) suitable for use with an automotive serpentine belt system comprises a fixed structure (36) adapted to be mounted on an automotive engine, a pivoted structure (40) mounted on the fixed structure for pivotal movement relative thereto, and a torsional spring (44) connected between the fixed structure (36) and the pivoted structure (40) for resiliently biasing the pivoted structure (40) towards a maximum extension position. The torsional spring (44) is in the form of a helical coil connected between the fixed and pivoted structures, a major portion of the helical coil (44) being free from contact with the fixed and pivoted structures and therefore subject to vibration. In accordance with the invention a spring stabilizer (118) is mounted in engagement with the interior of the spring (44) for preventing or inhibiting vibration of the spring (44).
Patent EP-0400971-A2 (EP)
Inventor: HOLTON ROBERT A
IPC: C07D305/14
Filed: 1990-05-30
Abstract: A β-lactam of the formula:
      wherein R₁ is aryl, substituted aryl, alkyl, alkenyl, or alkynyl; R₂ is hydrogen, alkyl, acyl, acetal, ethoxyethyl, or other hydroxyl protecting group; and R₃ is aryl, substituted aryl, alkyl, alkenyl, or alkynyl; and process for the preparation of taxol comprising contacting said β-lactam and an alcohol in the presence of an activating agent to provide a taxol intermediate, and converting the intermediate to taxol.
Patent EP-0405756-A2 (EP)
Inventor: HOWES NICHOLAS J
IPC: H04L12/437
Filed: 1990-05-31
Abstract: A self-healing data network and network node controller. Data transmission of data cells to form messages permitting self-clocking operation of each node and elastic buffering implemented to allow receipt of messages without regard to the phase of messages allows asynchronous operation of each node relative to other nodes. Fault detection and network self-­healing are performed by each node independently of other nodes.