baber/WOPTO huggingface dataset:
Patent EP-0381925-A2 (EP)
Inventor: HERMAN PETER K
IPC: F16K24/02
Filed: 1990-01-06
Abstract: A self-venting valve apparatus using a valve stem (16) rotatably and slidably mounted to a vessel (4) by a collar (8) is disclosed. The stem includes threads at the top (36) and base (34) of the stem which matingly engage internal threads (10) of the collar to hold the stem open or closed. A single gasket (46) seals the gas inlet and liquid outlet in the closed configuration. To drain the fluid, the valve stem is unscrewed so the bottom threads disengage from the collar, the valve stem lowers until the top threads of the valve stem engage the collar, and the top threads are screwed to the collar to secure the valve in the open position. Fluid begins draining through the central passage (38) of the valve stem (16) before gas enters the vessel through the groove (20) in the sidewall of the valve stem to allow proper siphoning. The lower end of the liquid drain passage is placed below the lower end of the air inlet groove, thereby insuring that the liquid drain passage is opened first as the valve stem is lowered. Entering air is isolated from the outgoing water by a riser wall (44) which separates the passage from the groove. The liquid drains through the passage and then exits into a collector knob. The collector knob maintains a regulated and controlled flow resistance through a drain spout.
Patent EP-0378138-A2 (EP)
Inventor: BROWN PAUL
IPC: B29C45/16
Filed: 1990-01-08
Abstract: A nozzle structure is disclosed useful to service individual cavities of a multicavity mold for molding multilayered articles or preforms where the nozzles include a plurality of flow paths (21, 24) for advancing material (22, 26) from external sources through predetermined paths to all cavities, simultaneously. Certain of the flow paths include reservoirs (27) incorporating choke elements for insuring that material exiting from the reservoirs advances into the mold cavities along a uniform front where the front is generally perpendicular to the longitudinal axis of the nozzle.
Patent EP-0386548-A2 (EP)
Inventor: POLICASTRO PETER PAUL
IPC: C08L69/00
Filed: 1990-02-23
Abstract: Flame retardant aromatic polycarbonate compositions are provided resulting from the use of certain poly(arylene silicon) materials in combination with aromatic polycarbon­ates. Included among the poly(arylene silicon) materials are aromatic polyester siloxanes, aromatic polyimide siloxanes and aromatic polysilphenylenes.
Patent EP-0393394-A2 (EP)
Inventor: STOEHR ALBERT
IPC: B65G19/28
Filed: 1990-03-28
Abstract: Die Erfindung betrifft einen Späneförderer (1), der ein mit zwei seitlichen Förderketten (2) versehenes, endlos umlaufendes Transportband (1) sowie ein mit Führungsschienen (8) für diese Förderketten (2) ausgestattetes Gehäuse (6) besitzt, wobei in den oberen Führungsschienen (8) der Förderketten (2) Öffnungen (11, 12) zum Kühlmitteldurchtritt vorgesehen sind. Auf diese Weise ergibt sich eine konstruktiv einfache Fördererausführung, bei der zugeführtes Kühlmittel zuverlässig und rasch seitlich aus dem Bereich des Obertrums (2c) (Fördertrum) ablaufen kann.
Patent EP-0398052-A2 (EP)
Inventor: HEINZ HANS-DETLEF DR
IPC: C08L81/02
Filed: 1990-04-26
Abstract: The low-viscosity polyarylene sulphide (PAS) moulding compositions, preferably polyphenylene sulphide (PPS) moulding compositions, contain low-molecular-weight, liquid-crystalline esters or ester amides.
Patent EP-0401632-A2 (EP)
Inventor: CIOFFI KENNETH ROBERT
IPC: H03F3/60
Filed: 1990-05-26
Abstract: An apparatus and method are disclosed for performing impedance transformations on the order of 4:1 to 8:1 or more over extremely broad bandwidths. The transformations are performed in an apparatus having a  plurality of n distributed  amplifiers having one common synthetic transmission line [26] sharing inductive elements and a second transmission line connected in parallel to the other transmission lines. The transmission lines incorporate active elements [24] preferably in the form of FET cascode pairs. In one embodiment, the second transistor of each cascode pair is replaced with n smaller gate FETs to decrease DC power requirements and provide additional conduction paths for impedance reduction.
Patent EP-0406562-A2 (EP)
Inventor: LAWLESS MICHAEL WILLIAM
IPC: A61M5/168
Filed: 1990-05-28
Abstract: Apparatus and method for determining leakage, particularly of valves, in a pumping cassette. A cassette (70) includes a primary valve (34) and a secondary valve (36), which may be selectively activated to control the source of fluid input to the cassette. The cassette also includes an inlet valve (48) and an outlet valve (56) disposed on each side of a pumping chamber (52). Downstream of the outlet valve is disposed a pressure sensor (60) which produces a signal indicative of the pressure of fluid within the cassette at that point. The cassette also includes an air-in-line sensor (40), disposed between a manifold line (38) that connects the primary and secondary valve in fluid communication with an air trap reservoir (44). Leakage in the inlet or outlet valves is detected by closing both valves, pressurizing fluid in the pumping chamber for a predetermined period of time, and then opening the outlet valve. If a pressure pulse having an amplitude less than a predetermined level is detected downstream of the outlet valve when it is opened, either the inlet or outlet valve has leaked. The primary and secondary valves are checked for leakage either by pressurizing fluid in the pumping chamber and checking for retrograde flow of air trapped in the air trap reservoir through the air-in-line sensor, or by pressurizing fluid trapped in the cassette, holding the pressure for a period of time before closing the inlet valve, and then opening the outlet valve to detect a pressure pulse propagating downstream of the outlet valve, using the pressure sensor. If a pressure pulse of less than the predetermined magnitude is detected, one of the primary or secondary outlet valves is leaking. Both tests also detect leakage of other portions of the pumping cassette.
Patent EP-0420253-A2 (EP)
Inventor: NAKAMURA TAKASHI
IPC: C08L71/02
Filed: 1990-09-27
Abstract: An ionically conductive materiaz comprises crosslinked copolymer prepared by the reaction of (A) organopolysiloxane and polyoxyalkylene copolymer, which has at least 2 silicon-bonded hydrogen atoms in each molecule, with (B) polyoxyalkylene having at least 2 aliphatically unsaturated hydrocarbon groups in each molecule, and (C) metal ion from Group I or Group II of the Periodic Table, wherein said metal ion is dispersed in said crosslinked copolymer. Component (B) is a polyoxyalkylene having an aliphatically unsaturated hydrocarbon group at both chain terminals or a mixture of molecules in which some have an aliphatically unsaturated hydrocarbon group at both ends and some having the group at only one end. This mixture gives the highest conductivity.
Patent EP-0427016-A2 (EP)
Inventor: SACCHI FABRIZIO
IPC: H03K3/0233
Filed: 1990-10-17
Abstract: An electronic comparator device (1) with hysteresis, being of a type which comprises a differential cell (2) having a signal input (IN), an output (OUT), and a threshold input (S), further comprises a second differential cell (9) having one input (B9) connected to said output (OUT) and the other input (B10) connected to a controlling circuit portion (10) which has an output (E11) connected to the threshold input (S) to reduce the threshold voltage value (Vs) stepwise on the first change-over of the output (OUT) of the comparator (1).
Patent EP-0437841-A2 (EP)
Inventor: APFEL STEPHEN M
IPC: B60R22/48
Filed: 1990-12-28
Abstract: A self-contained device (10) for giving audible messages to occupants of a vehicle is disclosed. The device (10) is comprised of a housing (12) having a top, a side, and a front, a power source disposed remotely from the housing, a VELCRO® strap (14) disposed on the top of the housing (12) so that the self-contained audible message device can be mounted under the dashboard of the vehicle, a first negative (16) electrode disposed from the housing, a first positive (18) electrode disposed from the housing, the first positive (18) electrode and the first negative electrode (16) together connecting the present invention to the remote power source, a normally open switch (20) disposed remotely from the housing, a light emitting diode (22), a second negative electrode (19) disposed from the housing, and a second positive electrode (21) disposed from the housing, the second positive electrode (21) and the second negative electrode (19) together connecting the normally open switch (20) to the light emitting diode (22). (L.E.D.)
Patent EP-0375672-A2 (EP)
Inventor: OHYAMA MASAO C O PATENTS DIVIS
IPC: G11B15/22
Filed: 1986-02-14
Abstract: A recording and/or reproducing apparatus for a magnetic tape cassette has a rotary head (6) mounted on the recording and/or reproducing apparatus and a loading mechanism for extracting a length of magnetic tape from a magnetic tape cassette and moving the length of magnetic tape to various positions corresponding to various operation modes of the recording and reproducing apparatus. The loading mechanism includes first (23) and second (24) movable members respectively movable along predetermined first (16) and second (17) paths. The rotary head (6) is mounted in such a manner that the axis of the rotary head lies oblique to a vertical axis in such a manner that first ends of the first (16) and second (17) paths lie adjacent the rotary head (6) in a plane extending through the uppermost point (6U) and the lowermost point (6L) of the top surface of the rotary head (6) and perpendicular to the medial plane of the magnetic tape and second ends of the first (16) and second (17) paths are remote from the rotary head (6) and proximal to the first means, whereby the difference between the lengths of the first and second paths can be minimized. Preferably, the rotary head (6) is mounted in such a manner that the axis of the rotary head means lies oblique to the vertical axis such that the plane extending through the uppermost point (6U) and the lowermost point (6L) of the top surface of the rotary head (6) lies oblique to a reference line (A-A) connecting the reel axes (12,13) of a pair of tape reels in the magnetic tape cassette (130).
Patent EP-0397244-A2 (EP)
Inventor: KNAPP ALAN GEORGE
IPC: G06F3/048
Filed: 1990-05-02
Abstract: A touch sensor array system comprises an array of sensor elements (12) each actively addressable by means of a switch device (16), for example two terminal devices such as diodes or MIMs, or TFTs, controlled by a driver circuit (22) to load a predetermined charge into a capacitor (14) of the element. Touching a sensor element dissipates this charge which is detected during a subsequent addressing stage by sensing particular charging characteristics with a monitoring circuit (24). With a row and column array, the elements (12) are addressed one row at a time at regular intervals using a row conductor (18) common to a row of elements. Each column of elements shares a column conductor (20) connected to the monitoring circuit. Various schemes are described enabling wired or isolated styli or a finger to be used as position designating means. The array is fabricated using thin film deposition techniques and high resolution arrays are easily achieved. The system can be used as a display overlay.
Patent EP-0434131-A2 (EP)
Inventor: VAN DER HUIZEN ADRIAAN ALBERT
IPC: C08C19/02
Filed: 1990-12-12
Abstract: Provided are anionic polymerization catalyst compositions comprising:
     a) an organolithium compound   b) a barium, strontium or calcium alcoholate or thiolate, and   c) a trialkylaluminium compound having at least 13 carbon atoms per molecule, a polymerization process using these catalyst compositions, and polymers obtained by such a process.
Patent EP-0387099-A2 (EP)
Inventor: BUSAI GYULA
IPC: H01L21/60
Filed: 1990-03-09
Abstract: In an incandescent lamp, comprising a translucent envelope (2) having flattened end (3) of rectangular cross-section, a base element (5) surrounding the flattened end part (3) and having rectangular cross-section, two current lad-ins (7a, 7b) connected with an incandescent body (4) arranged within the envelope (2) and with the base element (5) and thereby with a connecting cable (8), a centering plate (6) with a rectangular opening for receiving the base element (5), wherein the centering plate (6) is made with at least one flange element (10) arranged on the side of the centering plate (6) facing away from the envelope (2), the base element (5) being made of thinner plate than the centering plate (6), a locating body (9) stepwisely shaped for receiving the flange element (10) is applied, the locating body (9) made of thinner wall than the centering plate (6) is fixed on the base element (5), has an edge (14) separated from the base element (5) by a gap, wherein the edge (14) of the locating body (9) covers at least partly the at least one flange element (10) of the centering plate (6), the flange element (10) of the centering plate (6) is between the base element (5) and the locating body (9), further the flange element (10) of the centering plate (6) and the locating body (9) are connected by a thermal method of joining.
Patent EP-0400911-A2 (EP)
Inventor: FRANCO VICTOR A
IPC: H04M3/42
Filed: 1990-05-25
Abstract: A method and an apparatus are disclosed to enable a public switching network to limit the geographical calling area of calls charged to a credit card. When a credit card call is originated, the called party number is included as part of the credit card validation request. The called party number is compared against numbers stored in a call restriction table 320 previously entered by the owner of the credit card. The network accepts or denies credit card calls as a result of this comparison.
Patent EP-0420400-A2 (EP)
Inventor: UNDERWOOD JOHN A
IPC: B41J13/00
Filed: 1990-07-31
Abstract: A printer medium feed mechanism clearance eliminator is provided, including a paper guide (32) mounted to the printer, a clearance eliminator sheet (38), and tensioning means (43). The clearance eliminator plate (38 conforms to the curve of a medium drive roller (20), thereby elimi­nating clearance wherein the medium (14) might buckle and cause jamming or skewing within the printer (10).
Patent EP-0420634-A2 (EP)
Inventor: ENDERSON EUGENE S
IPC: H03D7/14
Filed: 1990-09-27
Abstract: A diode mixer circuit characterised by low levels of intermodulation distortion includes a centre-tapped input transformer (10) for coupling the circuit to a local oscillator source (32) and a radio frequency signal source (22) and a centre-tapped output transformer (12) for coupling the circuit to an intermediate frequency load (82). An arrangement of transformers (14,16) and switching diodes (60 - 67) interfaces the input transformer (10) to the output transformer (12) and applies the local signals and radio frequency signals to the input coil (70) of output transformer (12) while back-biasing those of the diodes (60 - 67) which are in the off condition for more rapid switching action.
Patent EP-0430456-A2 (EP)
Inventor: TERADA AKIO C O PATENT DIVISIO
IPC: G11B21/08
Filed: 1990-11-06
Abstract: In a track jump control device a scanning head (13) for scanning the recording track of a disc-shaped recording medium (11) is moved to a target track position. A signal obtained by differentiating (25) a tracking error signal is used as speed data to perform a closed loop track jump control operation to achieve direct landing on the target track. Track jump control making use of gray code information indicating the recording tracks on the recording medium (11) on a track-by-track basis is switched (30) to track jump control making use of the differentiated tracking error signal or vice versa to realize direct landing on the target track.
Patent EP-0430489-A2 (EP)
Inventor: BURRAGE CLEMENT PETER
IPC: H01P5/10
Filed: 1990-11-14
Abstract: A broadband balun, comprises first and second tubular conductors (1, 2) arranged substantially parallel, the first tubular conductor (1) being open at both ends and the second tubular conductor (2) being closed at one end. Each tubular conductor is grounded, the second (2) at its closed end and the first (1) at its end adjacent thereto. An input conductor (3) passes through the first tube (1) and back through the second tube (2) to terminate close to but spaced from the closed end thereof. And parallel pair of output conductors (4, 5) each connect to a respective one of the tubular conductors (1, 2) at the end thereof remote from the grounded end. Impedances may be selected to permit the balun to operate over a broad range of frequencies, e.g. 6 to 24MHz, without the need for adjustment or tuning.
Patent EP-0434618-A2 (EP)
Inventor: BERNER GODWIN DR
IPC: C07C49/755
Filed: 1990-12-12
Abstract: Compounds of the formula <IMAGE> in which Ro, R1, R2, R3, R6 and X have the meaning given in Claim 1, are suitable as UV absorbers for protecting light-sensitve organic materials.
Patent EP-0453720-A2 (EP)
Inventor: ABDEL-RAHMAN MAHMOUD F
IPC: G01F1/684
Filed: 1991-02-13
Abstract: A method and apparatus for sensing the mass flow of a fluid and for generating an output signal representative of the sensed mass flow are shown to include a conduit formed from resistive material, a voltage source connected to a first point on the conduit, for providing a voltage to the first point in response to a control signal, a differential amplifier wherein the output of the amplifier is representative of the difference in voltage between a second point on the conduit and a third point on the conduit, and a controller for generating the control signal so that the voltage provided to the first point is regulated in relation to the flow of fluid through the conduit. In an especially preferred embodiment the resistive material is Nickel-52. In a further embodiment, the controller generates the control signal so that the voltage applied to the first point is regulated to maintain the average resistance of the conduit at a desired value. In one embodiment, the desired value is a constant value. In another embodiment, the controller generates the control signal so that the voltage applied to the first point is maintained at a desired value. In this last embodiment, it is preferred to compensate the output signal to account for the cooling of the conduit as the fluid passes therethrough.
Patent EP-0460368-A2 (EP)
Inventor: KADOWAKI SHINICHI
IPC: G11B7/127
Filed: 1991-03-26
Abstract: A light source emits a light beam which is focused on an optical recording medium. The light beam is reflected and diffracted by the optical recording medium. A holographic optical element has divided regions formed with different holographic patterns. The divided regions of the holographic optical element diffract the light beam reflected and diffracted by the optical recording medium, and thereby generate diffraction light beams respectively. The divided regions of the holographic optical element lie in quadrants of an imaginary X-Y coordinate system respectively. An X axis of the coordinate system extends in a direction corresponding to a direction of a pit sequence on the optical recording medium, that is, a tangential direction of the optical recording medium. A Y axis of the coordinate system extends in a direction corresponding to a direction perpendicular to the direction of the pit sequence, that is, a radial direction of the optical recording medium. Photodetectors receive the diffraction light beams generated by the divided regions of the holographic optical element, and convert the received diffraction light beams into corresponding electric signals. Phases of the electric signals are compared, and a tracking error signal is generated on the basis of a result of the phase comparison.
Patent EP-0471151-A2 (EP)
Inventor: GRUNDKE ULRICH
IPC: G03F7/027
Filed: 1991-05-08
Abstract: The invention relates to radiation-crosslinkable binder mixtures which contain, as component A, a product which is obtained by reacting an epoxide compound having more than 1 epoxy group per molecule with one or more carboxylic acids in a molar ratio of the epoxy groups to the carboxyl groups of 1 : 0.5 - 0.9 and then reacting the reaction product with one or more unsaturated isocyanato carbamate esters, and, as component B, a product which is obtained by reacting an epoxide compound having more than 1 epoxy group per molecule with one or more olefinically unsaturated carboxylic acids in a molar ratio of the epoxy groups to the carboxyl groups of 1 : >/= 1 and then reacting the reaction product with one or more polybasic carboxylic acids or anhydrides thereof, the components A and B being present in a weight ratio of 3 : 1 to 1 : 3.
Patent EP-0484631-A2 (EP)
Inventor: REIME GERD
IPC: H04N5/93
Filed: 1991-06-28
Abstract: In the signal path (1) for the frequency-modulated luminance signal of a video recorder, an equalising circuit (11) is disposed between the video band (2) and the frequency demodulator (3) which, whenever the luminance signals fall below a specific switching level (U16), operates in the mode of a bandpass filter (19) which is tuned to the carrier frequencies of the luminance signals and, whenever the luminance signals exceed this switching level in the direction of higher values, operates in the mode of an amplitude-controlled delay unit. In the latter mode, phase errors caused by recording and transmission are largely cancelled, whereas, in the former mode, oscillation patterns with deteriorated oscillations are again refreshed in terms of amplitude through the resonance effect. The height of switching level (U16) is set by a noise detection circuit (21) which detects the rate of the oscillations which do not pass through a specific detection level of the noise detection circuit situated in the vicinity of the sound point line of the frequency demodulator. The equalising circuit is thereby adapted to the different reproduction quality levels of different video tapes in such a way that image reproduction with minimum interference and maximum definition is achieved. <IMAGE>
Patent EP-0512161-A2 (EP)
Inventor: WALLRAFEN WERNER
IPC: H03K17/94
Filed: 1991-12-11
Abstract: In a switching device, particularly for use as active sensor in motor vehicles, in which the current through a load can be switched in dependence on a physical quantity acting on the switching device, two connections of the switching device can be connected to one another via a semiconductor switch. Furthermore, they form the input to a storage-type power supply circuit. A sensor generates an electrical signal representing the physical quantity, which can be supplied to a threshold circuit. The semiconductor switch can be controlled in pulsating manner in dependence on the output signal of the threshold circuit.
Patent EP-0475492-A2 (EP)
Inventor: GRABER DAVID WAYNE
IPC: B62D101/00
Filed: 1991-08-21
Abstract: A hydraulically assisted power steering apparatus (10) subject to variance in steering effort due to temperature change is compensated to give consistent response at all temperatures. A hydraulic control valve (16) is coupled to an electromagnetic device (92) which controls the steering effort as a function of energization current. The current is adjusted in accordance with temperature to compensate for temperature changes. A microcomputer control unit (178) stores empirical data relating to the effect of temperature on steering effort and calculates the current adjustment necessary for any measured apparatus temperature. In one embodiment, the temperature is not measured directly but is derived from the deviation of energization current from the theoretical desired current, which deviation is a function of temperature. The effect of voltage variations is also compensated for.