baber/WOPTO huggingface dataset:
Patent CA-2190020-A1 (CA)
Inventor: SPERANZA BERNARD E
IPC: G01F23/00
Filed: 1996-11-08
Abstract: A method for determining the level of a first layer of liquified material  submerged below  a  second  layer  of liquified material is disclosed.  A tube having first and second  opposing  tube  ends  includes  a  sacrificial  cap covering the first tube end.   The tube is adapted for insertion of the first tube end through the second layer into the first layer.  The cap is adapted to substantially disintegrate after insertion into the first layer,  such that pressure pushes a portion of the first material into the tube to a level substantially equal to the level of the first layer.  A sensor determines the level of the measured portion in the tube.
Patent CA-2190061-A1 (CA)
Inventor: RINK KARL KUNO
IPC: B60R21/26
Filed: 1996-11-12
Abstract: Apparatus for inflating an inflatable device, methods for inflating an inflatable safety device and a method of manufacturing an apparatus for inflating an inflatable device are provided having a fuel containment assembly to contain a fuel in the form of a fluid. The fuel, upon proper initiation, is burned to produce gas used in the inflation of the inflatable device.
Patent CA-2194419-A1 (CA)
Title: Perceptual noise shaping in the time domain via lpc prediction in the frequency domain
Inventor: HERRE JUERGEN HEINRICH
IPC: G10L11/00
Filed: 1997-01-06
Abstract: A method and apparatus for the perceptual coding of audio signals in which perceptual noise shaping is achieved in the time domain by performing a (linear) prediction (i.e., filtering) in the frequency domain. As a result, the temporal spread of quantization noise is reduced. Specifically, according to one illustrative embodiment of the present invention, a method comprises decomposition of the audio signal into a plurality of spectral component signals; generating a prediction signal representative of a prediction of one of said spectral component signals, said prediction based on one or more other ones of said spectral component signals; comparing the prediction signal with said one of said spectral component signals to generate a prediction error signal; coding said one of said spectral component signals based on the prediction error signal to generate a coded spectral component signal; and generating the encoded signal based on the coded spectral component signal.
Patent CA-2196696-A1 (CA)
Title: Asymmetric femoral prosthesis
Inventor: RIES MICHAEL
IPC: A61F2/38
Filed: 1995-08-01
Abstract: A knee prosthesis includes a femoral prosthesis member (60) having anterior (12), distal (15), and posterior (13, 14) articulating surface portions. The articulating surface portions comprising a pair of condylar surface portions (13, 14, 61, 62) that are positioned at differing distances from the non-articulating surface plane. In one form the posterolateral articulating surface is a greater distance away from the anterior non-articulating surface than the posteromedial articulating surface (Figs. 1 and 15). The femoral prosthesis has a non-articulating surface that includes a plurality of intersecting surfaces including at least distal (23, 24), anterior (17, 18), and posterior (20, 21) surfaces for receiving the patient's distal femur after it has been surgically prepared. A tibial component (50) has concave articulating surfaces that receive the femoral component articulating surface portions during use.   The angle of femoral rotation generally about the mechanical axis generally changes when going through a normal range of motion of the patient's knee while maintaining alignment of the femoral and tibial articular surfaces. The femoral prosthesis also has a proximal anterior region (65) that is concave (Fig. 19). An improved patella groove design is also shown (Figs. 20-24).
Patent CA-2197447-A1 (CA)
Title: A tyre condition monitoring system
Inventor: DERBYSHIRE ANDREW JOHN
IPC: G08C17/00
Filed: 1995-08-31
Abstract: A tyre condition monitoring system (1) comprises a wheel transmitter unit (2) for each wheel of a vehicle. The transmitter unit is mountable in the wheel and has sensors (9, 10) for sensing pressure and temperature in and rotation of the wheel. Signals from the sensors are processed by a processor (9) to produce data which is transmitted via a radio frequency transmitter (23). The data is transmitted with data representing a unit identity code. Transmitted data is received by a receiver unit (5, 6, 7) where it is analysed to determine the condition of the tyre. The receiver unit includes a user operable input for setting threshold limits for the temperature and/or pressure such that if a threshold is passed an alarm is sounded. Each wheel transmitter unit includes a power supply and is arranged so that power is only applied during the sensing and transmission of data. Intervals between transmissions of data can be varied depending on whether rotation of the wheel has been sensed.
Patent CA-2197472-A1 (CA)
Title: Method and apparatus for the correction of signal-pairs
Inventor: BEHRENT HERMANN
IPC: H04L27/00
Filed: 1995-08-24
Abstract: The invention relates to a process and device for reshaping orthogonal pairs of signals. Linear distortions arise in the processing of orthogonal signal pairs I and Q in transmitters and receivers. They are essentially the direct component offset, the amplitude difference and the phase error between the I  and Q branch, also called ellipticity. Conventional correcting circuits provide only an inadequate correction of the linear distortions using feedback control circuits. Conventional digital processes exhibit undesired rounding errors and require complex computing means. To avoid this, the direct component offset and the ellipticity are to be corrected using correcting calculations using a special 3x3 matrix. The computing effort is considerably reduced by removing first the direct component offset and then ellipticity.  The process may be used, for instance, in homodyne receivers, where the device is simple to produce and economical in use.
Patent CA-2198522-A1 (CA)
Title: Optical connector with immovable ferrule
Inventor: LAMPERT NORMAN ROGER
IPC: G02B6/38
Filed: 1997-02-26
Abstract: A connector 20 for terminating an optical fiber 31 includes a one-piece molded plastic housing 200 having an exterior latch 220 that secures the housing to an associated receptacle 60. The latch is constructed as a cantilever with its fixed end positioned toward a front end of the housing. The housing includes an axial bore 205 for receiving an end portion of the optical fiber into its interior. This passageway extends longitudinally from a back end of the housing toward its front end, and is about half the length of the housing. The connector further includes a cylindrical structure 140-2 which extends longitudinally from a midpoint of the housing toward its front end. The cylindrical structure also includes an axial passageway 145 for receiving the end portion of the optical fiber, and is positioned within the housing such that the passageways are collinear and communicate with each other. Most importantly, the cylindrical structure is rigidly held within the housing and avoids the use of a spring. The connector is particularly useful when used in an end-to-end connection, via an appropriate adapter 600, with a conventional connector 10 that has a spring 160.
Patent CA-2199151-A1 (CA)
Title: Removal of dust particles from a relatively moving material web
Inventor: SCHNEIDER ROBERT NICOLAS A
IPC: B08B11/00
Filed: 1995-09-06
Abstract: The disclosed process is based on new developments concerning the design of dusting devices. By using a gas or air stream, the corresponding flow energy that causes a discharge effect (according to Paschen's law) may be directly applied on the surface of the material. A special profile or flow deflecting means cause at the same time a sucking effect and the removal of dust particles. The whole dusting device may be very compact and maintenance costs are reduced to an absolute minimum.
Patent CA-2199348-A1 (CA)
Inventor: BERNARDO CARMELO F
IPC: H03F5/00
Filed: 1997-03-06
Abstract: An audio output system, having loudspeakers with an asymmetrical output in response to symmetrical modulated input signals, is provided with a unidirectional limiting circuit for proportionally reducing input signals of a polarity to drive the loudspeaker in the direction of its greatest response.  In its basic form, the limiting circuit is  a  voltage  limiting  circuit,  preferably a  voltage divider,  which includes a rectifier device.   When the driving signal  is of a polarity to produce a greater response  from  the  loudspeaker,  the  rectifier  device conducts  and  the  magnitude  of  the  signal  voltage  is reduced, resulting in substantially greater uniformity of output response of the loudspeaker in both directions. When the limiting circuit is placed on the input side of the power amplifier, the rectifier device advantageously is a vacuum tube connected as a diode.  When located in the output stages of the power amplifier, where higher signal voltages are available, solid state rectifier devices may be employed.   Multiple asymmetrical loudspeakers may be controlled using a single limiting circuit, provided all such loudspeakers are connected so that their greater response results when the signal thereto is of the same polarity.
Patent CA-2199883-A1 (CA)
Title: Modular supertile array antenna
Inventor: MURRAY BRONSON
IPC: H01Q21/00
Filed: 1997-03-13
Abstract: An array antenna especially adapted for spacecraft use includes a support frame made up of intersecting beams which form an "eggcrate" of square openings.  A plurality of subarrays or radiating tiles are dimensioned to fit within the openings.  Distortion of the support frame due to external forces, or due to expansion and contraction of the radiating tiles, is accommodated andor resisted by a four-point mounting arrangement for each tile. Each mounting is located on the center of the sides of the radiating tile, and the corresponding center of the side of the opening in which it fits.  Each mounting consists of a thin, flexible mounting beam, extending parallel to the associated support beam, and fastened to the support beam at the ends of the mounting beam.  The center of the side of the tile is fastened to the center of the flexible support beam, so expansion and contraction of the tile are compensated by bending of the flexible beam.  Mutually opposing external forces acting parallel to the elements of the support frame are resisted by the longitudinal stiffness of the flexible beam and the diagonal stiffness of the tile.
Patent CA-2200330-A1 (CA)
Inventor: OGAWA TARO
IPC: B29C44/12
Filed: 1996-06-28
Abstract: A seat is provided that is adapted to avoid wrinkles otherwise generated due to a skin material and cushion provided separately and impart a soft feeling to a person sitting thereon, while ensuring hardness for supporting the weight of the person. A seat (1) comprises a skin material (2) and cushions (6, 12) that are covered with the skin material. The cushions form substantially an external configuration of the seat, and comprise an upper first cushion (6) that is integrated with at least a part of the back side of the skin material (2) and a lower second cushion (12) adapted to be brought into engagement with the first cushion. Engaging surfaces (10, 13) of the first and second cushions that are brought into engagement with each other have configurations complementary to each other and the two cushions are brought into engagement with each other by means of engaging pieces (11a, 11b, 14a, 14b) that are provided integrally with the respective engaging surfaces.
Patent CA-2201111-A1 (CA)
Title: Method and device for cooling gases
Inventor: GOSSLER EWALD
IPC: F25B41/06
Filed: 1995-09-27
Abstract: According to a method of cooling gases, in particular air which is drawn in through a compressor, in a compressed air arrangement the gas flows alternately through at least one of a plurality of refrigerating driers (5, 6) equipped with heat exchangers (15, 16). The gas drawn in is cooled by means of a heat exchanger (15, 16) to below 0.degree.C over a cooling section. Whilst the gas is being cooled, the ice produced in the refrigerating drier (5,6) is defrosted by at least one of the refrigerating driers (5, 6) or in the further refrigerating drier(s) (5, 6) by the supply of a hot refrigerant vapour. The liquid refrigerant flowing out of the refrigerating drier (5, 6) to be defrosted is introduced into a pressure and/or connection line (17, 18) of the refrigerant circuit between the inlet of the heat exchanger (15, 16) used for cooling the gas drawn in and the condenser (59), which is arranged upstream of this (these) heat exchangers, or the tank. The invention also concerns a further method in which the nominal temperature is higher at the corresponding nominal pressure of the refrigerant emerging from the heat exchanger used for cooling the gas drawn in than the nominal temperature corresponding to the nominal pressure of this refrigerant.
Patent CA-2201832-A1 (CA)
Inventor: BOSTON W STEPHEN
IPC: G01F1/10
Filed: 1997-04-04
Abstract: Apparatus and a device for monitoring fluid which is substantially transparent to at least one frequency of light, which utilizes an impeller, [which in a preferred embodiment is a helical screw] located within a passage or conduit, to break a beam of light passing through the fluid as the impeller is turned by the flow of fluid. A light sensor is further provided to count the number of time the beam is broken within a certain time frame, thereby allowing the rate of flow to be calculated from a calibration of the number of turns of the impeller in relation to the rate of fluid flow through the conduit.
Patent CA-2203728-A1 (CA)
Title: Process for preparing catalytically active coatings for the synthesis of hydrogen cyanide
Inventor: SAUER JOERG
IPC: B01J27/24
Filed: 1997-04-25
Abstract: The invention relates to a process for preparing catalytically active coatings for the synthesis of hydrogen cyanide on moulded items substantially consisting of aluminium oxide. The catalytically active coatings contain, as active components, at least one platinum metal and a nitride which are applied to the moulded item by means of a coating dispersion which contains the active components as finely divided solids. This means that the hitherto conventional production of aluminium nitride during the forming process is not required. The coatings therefore achieve their final activity level, which is well above that of conventional coatings, very rapidly. In addition, these catalysts can be started up under high load and have a lower operating temperature.
Patent CA-2206137-A1 (CA)
Title: Demodulator
Inventor: MAEDA SHIGEKI
IPC: H03H15/00
Filed: 1997-05-26
Abstract: The demodulator of this invention is directed toward improving S/N ratio of the demodulator resulting from increase in the peak value of a received signal due to fading.  The demodulator is composed of a roll-off filter (not shown), variable amplifier 16, multiplier 10, compressor 11, variable dynamic range analog/digital converter 12, transversal filter 13, expander 14, tap coefficient control circuit 15, and signal level detector 17.  Signal level detector 17 detects the magnitude of waveform distortion from the output of tap coefficient control circuit 15 and controls the gain of variable amplifier 16 and the dynamic range of analog/digital converter 12, thereby reducing nonlinear distortion in multiplier 10 that is caused by increases in the peak value due to waveform distortion.
Patent CA-2208666-A1 (CA)
Title: Method and compositions for treating impotence
Inventor: BAUER JOHN ANTHONY
IPC: A61K31/04
Filed: 1996-04-09
Abstract: Pharmaceutical compositions in topical or parenteral form containing organic nitrites are effective in treating male impotence and erectile dysfunction through topical or intracavernosal administration to the penis. Methods of treatment utilizing the nitrite-containing compositions are also disclosed, as are certain novel organic nitrite compounds. The beneficial effects of such treatment can be demonstrated in rats by measuring cavernosal blood pressure and arterial blood pressure (as measured in the left femoral artery) following intracavernous injection of an organic nitrite and comparing those blood pressure readings to those obtained after intracavernous injection of a nitrate such as nitroglycerin.
Patent CA-2209352-A1 (CA)
Inventor: WHITMORE REBECCA
IPC: B65D85/671
Filed: 1997-07-02
Abstract: A dispensing container for storing and dispensing articles in a vehicle having a cylindrical container body, wherein the container body is receivable within a beverage holder in a vehicle. The container body will preferably have a diameter in the range of 2.6 to 2.8 inches to fit securely into a conventional vehicle cup holder. The container body includes at least one side wall, a bottom surface, and a top surface. The articles may be dispensed from an aperture provided in the top surface of the container body, or, alternatively, from a tear-away section formed along a scored portion of the top surface and a scored portion of the side wall which is torn open to allow access to the articles within said container body. The container body may further include a reinforcing support positioned adjacent to a side wall for providing additional lateral support for the container body. Additionally, the dispensing container may include a stabilizing device positioned adjacent to the bottom surface for providing additional balance to retain the container body in an upright position within the vehicle beverage holder. The top surface of the dispensing container may also include a removable lid to allow access to the articles within the container and to allow the container to be refilled.
Patent CA-2209812-A1 (CA)
Inventor: MICHELL STEVEN W
IPC: B65B41/14
Filed: 1997-07-04
Abstract: An apparatus for automatically placing lengths of poly sheet from a roll of poly sheet onto the second-from-the-top tier of a lumber package includes a poly roll holder, and a plurality of grip clamps. The grip clamps may have rubber pads for improved friction when gripping the ploy sheet. The gripping clamps are mounted on a carriage which is in turn mounted on a trolley. The trolley is selectively translated back and forth over an exposed tier in a stack of lumber. The gripping clamps grasp the free end of the poly sheet so that the ploy sheet is drawn over the exposed tier as the trolley is translated.
Patent CA-2210609-A1 (CA)
Title: Bellows seal with reverse pressure capability
Inventor: RINGER YORAM
IPC: F16J15/36
Filed: 1997-07-16
Abstract: A seal for sealing a low pressure area from a high pressure area for containing a process fluid. The high pressure area is located along a rotatable shaft extending from a machine body. The seal includes an outboard seal positioned along the shaft, and an inboard seal axially spaced along the shaft from the outboard seal. An annular chamber is defined between the inboard seal and the outboard seal for containing a buffer fluid. The inboard seal includes a stationary assembly attached to the machine body. The stationary assembly includes a stationary seal ring having a stationary sealing face, and a first secondary seal between the stationary seal ring and the housing. The inboard seal further includes a rotating assembly attached to the shaft. The rotating assembly includes a rotating seal ring having a rotating sealing face in sealing relation with the stationary sealing face and a second secondary seal between the rotating seal ring and the shaft.  The first and second secondary seals define fluid pressure barriers for causing axial movement of at least a portion of the stationary assembly and maintaining the sealing relation of the rotating and stationary sealing faces when the pressure of the buffer fluid is less than the pressure of the process fluid.
Patent CA-2211002-A1 (CA)
Inventor: ISAKSSON KENT
IPC: B01F5/06
Filed: 1996-01-18
Abstract: L'invention concerne des moyens de distribution et de dispersion d'eau saturée d'air sous pression élevée, conçus, de préférence, pour être utilisés dans un bassin de décantation (1) d'une station d'épuration d'eau et placés en position contiguë aux ouvertures d'entrée (2) à travers lesquelles passe l'eau à traiter dans le bassin de décantation (1). Ces moyens de distribution et de dispersion comprennent un dispositif de pré-dispersion (27, 28) situé dans un conduit de distribution (22) ou dans son conduit d'alimentation (24) et comportant un tuyau perforé, monté, de préférence, sur le même axe que le conduit en question. L'eau saturée d'air passe à travers les perforations ou trous d'étranglement (26), de manière à présenter une première chute de pression et, par conséquence, une dispersion. L'eau passe ensuite au conduit de distribution (22) à partir duquel elle circule à travers une ou plusieurs ouvertures (23) pratiquées dans la paroi dudit conduit (22) et est éjectée dans le bassin de décantation (1) au cours d'une autre chute de pression et d'une autre dispersion.
Patent CA-2213202-A1 (CA)
Title: Drive having a three-phase asynchronous motor with slip ring rotor
Inventor: HELLMANN BERND
IPC: H02P25/26
Filed: 1996-02-06
Abstract: In order to increase the power of a three-phase asynchronous motor (1) with a slip ring rotor (3) in a drive with a variable speed of rotation and to reduce the amount of equipment required for that purpose, the motor (1) is fed at the stator side by a frequency converter (5) that regulates the stator voltage or current (IS) and the stator frequency (fS) and at the rotor side by another frequency converter (I) that regulates the rotor voltage or current (IL) and the rotor frequency (fL). The frequency converters (5, 9) are controlled by a controller (12) so that the motor power is distributed to a predetermined extent between both frequency converters (5, 9) and that a predetermined speed of rotation of the motor results from the stator frequency (fS) and rotor frequency (fL). In order to operate the motor (1) with high voltages and the frequency converters (5, 9) with low voltages, transformers (4, 8) are arranged between the motor (1) and the frequency converters (5, 9). In order to keep small the transformers (4, 8), the stator frequency (fS) and the rotor frequency (fL) never fall below a predetermined minimum frequency. The speed of rotation of the motor may be nevertheless regulated over small values all the way down to its standstill.
Patent CA-2214293-A1 (CA)
Title: System enabling ecologic cooking of foodstuff
Inventor: FERNANDEZ TAPIA JUAN CARLOS
IPC: A47J27/04
Filed: 1997-08-29
Abstract: A system enabling the performance of ecologic cooking of food, wherein a first ambient of heat tempered by humidity is built up, containing the food and being uniformly tempered from a second ambient consisting of hot water and/or steam, said device comprising an external container and its cover provided with mean form facilitating the regulation of aeriform fluids and/or steam, within said container there is an interchangeable internal container as an accessory in which food to be cooked is placed, the container and cover are fastened together by a semi-hermetic closing system, said cover having the regulation means for outlet of the aeriform fluid; the internal container is hanging, on at least one point, inside the external container permitting the isolation of food from red-hot metal, so that the food placed in said interchangeable internal container of first ambient of heat tempered by humidity are cooked by effect of heat produced from a second ambient consisting of water and/or steam, the second ambient being external to the first ambient of heat tempered by humidity, said ambients may be or may not be in communication between each other.