baber/WOPTO huggingface dataset:
Patent CA-2021744-A1 (CA)
Inventor: NEWBY PAUL S
IPC: H03M13/39
Filed: 1990-07-23
Abstract: A simplified fast maximum likelihood decoder for (1-D) channels comprising a first stage decoder for detecting possible charge violations in a threshold decoded input signal, a second stage decoder for resolving charge violations detected in the first stage decoder by finding the most likely data pattern consistent with the charge constraint of the input signal, and an output shift register for generating corrected estimated decoded data in response to receiving control signals output from the second stage decoder.
Patent CA-2025864-A1 (CA)
Inventor: BOKERMAN GARY N
IPC: C07F7/12
Filed: 1990-09-20
Abstract: The instant invention is a process for the removal of hydrogen-containing silane impurities from organosilanes with similar boiling points. In the instant invention, the hydrogen-containing silane is reacted with a hydrogen halide to replace the hydrogen on the silane with a halide and create a modified silane.  The substitution of the heavier halide for the hydrogen, increases the boiling point of the modified silane.  This increase in boiling point facilitates separation by distillation of the modified silane impurity from the desired organosilanes.
Patent CA-2030265-A1 (CA)
Title: Lock cylinder and key, as well as key blank with matched security device
Inventor: KLEINHAENY ARNO
IPC: E05B19/24
Filed: 1990-11-19
Abstract: A lock cylinder with key, in which the cylinder has a rotor and a stator with radial tumbler pins and the key has depressions corresponding to the tumbler pins, at least one tumbler pin is functioned as a control pin (K), in that a zone produced by an offset provides a side coding (F) in addition to the depth coding (T) with a diameter corresponding to an additional coding (B) and the associated key has a depression with sides (8), whose spacing between the sides corresponds to the coded diameter (B) of the control pin offset and whose tumbler pin cooperates on the one hand with the milled coding in the key and on the other hand with control faces formed in the key blank. The aim is to create a copying or forging obstacle by means of a technical measure in the cylinder and on the blank.
Patent CA-2036121-A1 (CA)
Inventor: BERGMAN NORMAN J
IPC: B43M5/04
Filed: 1991-02-11
Abstract: The invention disclosed herein provides for automatically controlling positioning of a moistening nozzle relative to an en-velope flap being moved therepast at high speed.  The invention has particular application as an envelope flap moistener in a high speed mailing machine.  Envelopes are moved to and past the nozzle at a speed of at least about 65 inches per second along a given path with the flap extending from the envelope in an opened configuration thereof.  A sensor attached to the nozzle senses the location of the edge of the flap within about 0.2 inch of the nozzle upstream thereof a plurality times as the flap moves to and past the nozzle.  The nozzle is then positioned to track the flap edge in accordance with sensing of the envelope flap.  The nozzle may be pre-positioned by a lower bandwidth servo system having an envelope sensor located further upstream of the track-ing sensor.  A higher bandwidth servo loop controls tracking of the nozzle in response to the tracking sensor.  It is not neces-sary to use stored or computed envelope flap profiles, envelope speed, etc., for the nozzle to track the envelope flap.
Patent CA-2037292-A1 (CA)
Title: Preparation of finely divided, water-soluble polymers
Inventor: NIESSNER MANFRED
IPC: C08F2/10
Filed: 1991-02-28
Abstract: Finely divided, water-soluble polymers are prepared by polymerization of water-soluble, monoethylenically unsaturated monomers in not less than 20% strength by weight aqueous solution in the presence of a polymerization initiator in a kneader by a process in which from 0.1 to 10% by weight, based on the total monomers, of a surfactant are used in the polymerization, the polymerization initially being carried out to a conversion of the monomers of not less than 60% in the absence of the surfactant or in the presence of not more than 50% of the amount of surfactant, and the remaining amount of surfactant then being added to the reaction mixture and the polymerization completed. The addition of surfactant causes the polymer gel to disintegrate with formation of fine particles.
Patent CA-2040023-A1 (CA)
Inventor: RIOUX JACQUES R
IPC: B60S3/04
Filed: 1991-04-08
Abstract: An apparatus for cleaning the undercarriage of vehicles is made of the alternatly pivoting motors having orthogonally disposed axles connected together and supporting jet means projecting a fluid towards the undercarriage. The apparatus is mounted on a carriage actuated by one of the motors for moving under the vehicle.
Patent CA-2040795-A1 (CA)
Title: Microwave device
Inventor: SHIGA NOBUO
IPC: H01P5/04
Filed: 1991-04-18
Abstract: ABSTRACT OF THE DISCLOSURE   There is disclosed a microwave device comprising a substrate made of a dielectric material and a frequency conversion circuit formed on a front surface of said substrate and having a microstrip line and a radio frequency amplifier.  The substrate being partially thinned in a portion of a back surface thereof a faced to the radio frequency amplifier.
Patent CA-2041725-A1 (CA)
IPC: A47J42/40
Filed: 1991-05-02
Abstract: Abstract of the Disclosure A coffee grinder discharge chute for use with a coffee grinder operatively attached to a discharge opening in the grinder.  The chute is comprised of a generally vertical elongate channel-shaped body having a generally tubular upper section and a channel-shaped lower portion.  A grind directing cover is hingedly attached to the chute body over the channel-shaped lower portion to adjustably enclose the flow of ground coffee discharged through the chute thereby shielding the discharged ground coffee from ambient air currents.  An end of the chute has sides which are cut back to provide increased grind flow therethrough and an inwardly directed end portion against which the coffee exerts a force to open the hingedly attached cover member.  A chaff suppressing grinder discharge cleaning baffle is attached generally in the upper portion of the chute body.  The baffle includes a plate member to which is attached a plunger and a clean-out lever.  The plunger extends into the discharge opening of the grinder to remove ground coffee which cakes therein and to knock loose any coffee accumulations.  The plunger is automatically moved through the discharged opening by attachment to the plate member which is biasedly moved by a prespecified amount of ground coffee.  The clean-out lever provides manual movement of the plate member and attached plunger.
Patent CA-2044645-A1 (CA)
Title: Press-on type finger pulls
Inventor: KURTZ THOMAS D
IPC: E05B15/16
Filed: 1991-06-14
Abstract: A press-on type finger pull for application to the face of sliding panels.  The finger pull comprises a rigid body having a rear mounting surface and a front surface wider than the rear mounting surface and side surfaces that extend forwardly and outwardly from the rear mounting surface to form a narrow finger contact edge adjacent the front surface and a fingernail receiving recess rearwardly of the finger contact edge.  Abutment ribs extend trans-verse to each side surface and have a rear face generally coplanar with the mounting surface and an abutment face extending transverse of the plane of the mounting surface between the rear face and the finger contact edge.  A thin layer of pressure sensitive adhesive is provided on the rear mounting face for attaching the finger pull to a panel.
Patent CA-2045632-A1 (CA)
Title: Partial pressure measuring cell with cold-cathode ion source for leak detection in vacuum systems
Inventor: BALZER RICHARD
IPC: G01M3/20
Filed: 1990-11-27
Abstract: Abstract:            PARTIAL  PRESSURE  GAUGE  USING  A  COLD-CATHODE  ION  SOURCE           FOR  LEAK  DETECTION  IN  VACUUM  SYSTEMS    The partial pressure gauge consists of a combination of a magnetically confined cold-cathode discharge for the ionization of the residual gas in a vacuum system (ion source) and the magnetic separation of the ion masses (mass spectrometer).  A suitable inhomogeneous magnetic field configuration is instrumental in producing such a discharge that the energy spread of the ions is sufficiently small, which in turn guaran-tees the resolution required for mass separation in partial pressure measurements (for purposes of leak detection).  The ions are accel-erated solely within the electric field of the discharge.  The special shape of the cold-cathode discharge influences the electric field in such a manner that the energy of the emitted ions is low and remains virtually independent of the potential applied to sustain the dis-charge.  Due to the low ion energy a moderate magnetic field suf-fices for the mass separation.  Hence, the mass spectrometer and the ion source can be integrated within the same magnetic field assembly.
Patent CA-2046426-A1 (CA)
Title: Process for oligomerizing olefins using phosphorous-containing acid on montmorillonite clay
Inventor: SANDERSON JOHN R
IPC: C07C2/12
Filed: 1991-07-05
Abstract: ABSTRACT (D# 80,946-F) An improved process is disclosed for preparing synthetic lubricant base  stocks.    Synthetic lubricant base  stocks  are prepared in good yield by oligomerizing linear olefins using montmorillonite clays which have a phosphorous-containing acid deposited thereon.
Patent CA-2047782-A1 (CA)
Title: Multilayer membrane and process of manufacturing the same
Inventor: HANEL PETER
IPC: B01D69/12
Filed: 1991-07-24
Abstract: ABSTRACT           MULTILAYER MEMBRANE AND PROCESS OF MANUFACTURING IT                       A multilayer membrane is described, which is composed of a carrier layer, a porous support-ing layer and a separating layer.  The separating layer is nonporous and consists of a polyvinyl alcohol which is modified with 5 to 20% by weight of a polyvinyl ester or a polyvinyl ether.
Patent CA-2047923-A1 (CA)
Title: Hydrotreating heavy hydroisomerate fractionator bottoms to produce quality light oil upon subsequent refractionation
Inventor: BOUCHER HEATHER A
IPC: C10G47/12
Filed: 1991-07-25
Abstract: The heavy bottoms material boiling above about 580°C, obtained from the fractionation of the isomerate produced by the hydroisomerization of heavy waxes such as Bright Stock slack wax and Fischer-Tropsch synthetic wax, can be converted into a high quality light oil by severe hydrotreating, followed by refractionation in either a dedicated fractionator or by recycle to the isomerate fractionator.
Patent CA-2048449-A1 (CA)
Inventor: BACH STANLEY M JR
IPC: A61N1/362
Filed: 1991-08-06
Abstract: A cardioversion system includes a bipolar sensing circuit with two sensing electrodes, and a cardioversion circuit with two spaced apart spring electrodes.  The sensing electrodes are spaced apart from one another but kept sufficiently close to one another for isolated, localized R-wave sensing.  The sensing electrodes further are positioned remotely of the cardioversion electrodes, to avoid post-shock abnormalities which otherwise would interfere with a timely R-wave sensing, to substantially prevent the discharge of an unnecessary cardioversion pulse after return of the heart to normal cardiac rhythm.  One preferred version of the system is a unitary catheter including a distal tip electrode and ring electrode as the sensing electrodes, and tow substantially larger, more proximal spring electrodes for defibrillation.  Alternatively, the defibrillation electrodes and the sensing electrodes can be provided on two separate catheters.          Yet another alternative involves providing one or more patch electrodes as defibrillation electrodes.
Patent CA-2049587-A1 (CA)
Title: Apexed bead for a tire
Inventor: VINSON JERRY W
IPC: B29C48/12
Filed: 1991-08-21
Abstract: ABSTRACT     A method of building a tire comprises providing apexed bead with a first bead ribbon having a first bead portion including rubberized parallel extending bead wires. A first rubber apex leaf extends laterally from the first bead portion. A second bead ribbon has a second bead portion with rubberized parallel extending bead wires. A second rubber apex leaf extends laterally from the second bead portion. The second bead portion is located radially of said first bead portion to form a bead. The first and second apex leafs radially contact each other to form an apex with a substantially triangular cross-section taken in a plane extending transverse to the bead wires. The apex extends laterally from and integral with the bead. The apexed bead is placed radially of a cylindrically formed tire carcass ply. An axial end of the carcass ply is turned around the apexed bead. The apex portion is moved from an axial surface of the bead portion to a radial surface of the bead portion. d1h/2046 - 8/28/90
Patent CA-2051644-A1 (CA)
Inventor: BROCK DENNIS
IPC: G02B21/08
Filed: 1990-04-03
Abstract: An attachment system (10)  for attaching a camera (14) to a microscope has a mounting structure for securing a camera above the eyepiece of the optical tube (16) of the microscope (18), and an adaptor (12) for providing a light shield extends between the lens opening of the camera and the optical tube. A downstream end  (86)  of the adaptor closely surrounds the outer periphery of the optical tube to prevent the undesired ingress of ambient light into the adaptor, while permitting relative movement between the adaptor and the optical tube. An  illuminating  system  for  a microscope employs a curved, transparent,  light  transmissive  rod  (20)  having  a light-receiving end surface (116), a light-receiving peripheral side (118) surface and a light emitting end surface (108).  The rod is mounted with its light emitting end surface aligned with a passage extending through the stage  (22)  of the microscope upon which a specimen to be viewed and/or to be photographed is retained.
Patent CA-2052858-A1 (CA)
Title: Digital telecommunications system
Inventor: DEY WOLFGANG
IPC: H04M3/48
Filed: 1991-10-07
Abstract: Abstract A digital telecommunications system with a central ex-change (10) and a plurality of subscriber stations (20a-20d) is disclosed in which the calling subscriber station (20a) sends to the exchange (10) a calling signal con-taining the code of the called subscriber station (20b), and in which the exchange (10) records the code of the calling first subscriber station (20a). According to the invention, the exchange (10) includes a callback memory having a plurality of locations (11a-11d) each associated with one of the subscriber stations (20a-20d) and capable of storing the code of this subscriber station, and the called, second subscriber station (20b) has a callback function button (21) whose operation after release of the connection between the first (20a) and the second subscriber station (20b) generates a callback signal which causes the code of the calling first subscriber station (20a) to be read from the call-back-memory location (11b) associated with the second subscriber station (20b). This code is used as a desti-nation code for calling back the first subscriber station (20a).            Figure 1
Patent CA-2061837-A1 (CA)
Inventor: WEAVER BENSON C
IPC: A61B5/274
Filed: 1992-02-25
Abstract: A disposable wound treatment electrode is disclosed that is usable in combination with a releasable connector for enabling effective delivery of an electrical signal to a patient. The electrode and connector are configured so that the connector provides a readily accessible tool to facilitate disposal of the electrode after use, and a method of utilization for effecting this end is also disclosed. The electrode includes an electrically non-conductive cover sheet, an electrically conductive and preferably non-metallic dispenser formed at least in part by carbon and having a portion, preferably integral with the remainder of the disperses, that extends through an aperture in the interior portion of the cover sheet, and a non-adhering wound contact sheet. In addition, protectors are provided for an integral portion of the dispenser extending through the cover sheet, a retainer is provided to receive an electrically conductive skin moisturizer, and/or the peripheries of the cover sheet and the wound contact sheet are sealed together to form a closed envelope.
Patent CA-2062889-A1 (CA)
Title: Silicon nitride coatings in metal halide lamps to reduce sodium loss
Inventor: WASHICK JOHN M
IPC: H01J61/35
Filed: 1992-03-12
Abstract: SILICON NITRIDE COATINGS IN METAL HALIDE LAMPS           TO REDUCE SODIUM LOSS   ABSTRACT     Metal halide lamps are provided which have better lumen maintenance and concomitant lower operating voltage rise over the life of the lamp when a coating comprising silicon nitride is deposited on one or more metal lamp components of a metal halide lamp or on such components and the arc tube's outer surface. When deposited on the outer surface of the arc tube, silicon nitride acts as a barrier to sodium diffusion, thereby retarding or reducing the loss of sodium from within the are tube.  When sodium nitride is deposited on metal lamp components, the coating reduces the emission of photoelectrons from such metal lamp components that are exposed to ultraviolet radiation from the arc tube.  A method for reducing sodium loss in metal halide lamp is also provided.
Patent CA-2064151-A1 (CA)
Title: Device for generating hand function
Inventor: NATHAN ROGER H
IPC: A61F2/70
Filed: 1992-03-26
Abstract: A device is provided herein for generating hand functions. The device has an S-type splint consisting of a forearm portion extending along the palmar side of the forearm. A palmo-dorsal transition portion leads to a dorsal portion extending across the dorsal side of the carpal bones of the hand. A palmar portion is provided, at least the end of which touches the palm of the hand of the wearer of the device at least indirectly. A plurality of electrodes is at least indirectly mounted on the S-type splint in positions in which the electrodes can make contact with skin portions directly overlying muscles to be stimulated. The electrodes are connectable to an electronic circuit for producing, upon activation, stimulation currents which are delivered via combinations of the electrodes in predetermined, timed sequences to preselected groups of muscles.  At least one switch is actuatable by the wearer of the device, by which switch the predetermined, timed sequences can be initiated.
Patent CA-2064914-A1 (CA)
Title: System and method for transforming two dimensional signals of a hand held sector transducer into three dimensional signals
Inventor: ROTH JAMES A
IPC: G06T15/00
Filed: 1990-08-31
Abstract: The invention can be used to obtain 3D images of any object desired to be viewed or measured, including the human body. The 3D  images can be used to produce 2D displays or displays having 3D  perspective. This feature facilitates computation of object area or volume. An ultrasonic imaging subsystem (21, 22) produces signals representative of section images of the object. The image signals are stored as arrays of digital pixel values (117). Means (110) are provided for deriving and storing information representative of transducer position and orientation of the transducer during the scanning of an associated object section. The arrays of pixel values are then projected into a voxel storage locations.
Patent CA-2065996-A1 (CA)
Inventor: DESPRES ROGER J
IPC: C11C5/00
Filed: 1992-04-14
Abstract: ABSTRACT OF THE DISCLOSURE    A candle Includes a candle body formed-of a quantity of candle wax.  In one embodiment, a stationary wick is embedded within the candle body and a movable wick is supported within the candle body by a bimetallic coil spring.  The heat produced by the burning of the movable and stationary wick  causes a relative motion between the movable wick and the stationary wick.  In an alternate embodiment a pair of movable wicks are supported by a pelf of bimetallic coil spring, such that the heat produced by the burning wicks causes the coil springs to join the movable wicks to produce a combined flame.  In a still further alternate embodiment, a pair of bimetallic coil springs and a central wick are supported within a candle body.  A pair of upwardly extending arms are coupled to the bimetallic coil springs and support a corresponding pair of heart-shaped members.  The heat produced by the central candle wick is operative upon the bimetallic coil springs to cause the heart-shaped members to be joined as the candle burns.
Patent CA-2068384-A1 (CA)
Title: Automobile fluids dispensing and blending system
Inventor: ZINSMEYER HERBERT G
IPC: B67D7/42
Filed: 1992-05-11
Abstract: An automotive fuel additive dispensing and blending system is described wherein both proprietary and mandated fuel additives heretofore normally added at the refinery or a bulk storage plant may be added at a service station and blended into the fuel as fuel is dispensed thereby allowing most effective and reliable addition of additives that may be volatile and that may degrade in storage after mixed with fuel as well as providing a cost effective method for supplying differing gasoline blends to the customer.
Patent CA-2070757-A1 (CA)
Title: Motion compensated predicting apparatus
Inventor: TANAKA KOUICHI
IPC: H03M7/30
Filed: 1992-06-09
Abstract: An MC predicting apparatus which ensures a high prediction accuracy against input image signal stream and avoids arithmetic operation of an evaluation function from becoming an overhead for an image encoding process is provided.  Sequence numbers given to respective frames are discriminated, and a degree of interframe correlation is decided from a difference in sequence number of the preceding and current frames.  A reference block generator adaptively controls, depending on the degree of interframe correlation, the reference range of MC prediction of the preceding frame stored in a frame memory.  As a result, the number of times of arithmetic operation of an evaluation function for MC prediction can be reduced and a prediction accuracy can be improved.
Patent CA-2071166-A1 (CA)
Title: Wood preserving pad and method of installing same
Inventor: OSTBY DAVID J
IPC: E01B9/04
Filed: 1992-06-12
Abstract: Abstract of the Invention A preservative-bearing pad and a method of using same to treat the interface between a railroad cross tie and tie plate.  A sandwich of water-soluble active ingredient disposed between two layers of biodegradable hydrophilic backing is simply placed on the adzed portion of a cross tie prior to installation of the tie plate and rail during a rail laying or relaying operation.
Patent CA-2073392-A1 (CA)
Title: Parabolic signal generator
Inventor: YAMATE KAZUNORI
IPC: G09G1/04
Filed: 1992-07-08
Abstract: In a parabolic signal generator, a sync pulse is applied to a saw-tooth wave generation circuit, the output of the saw-tooth wave generation circuit is entered to an absolute value circuit, the output of the absolute value circuit is entered to a logarithmic amplifier, the output of the logarithmic amplifier is entered to a linear amplifier, and the output of the linear amplifier is entered to an antilogarithmic amplifier.  The absolute value circuit, logarithmic amplifier, linear amplifier and antilogarithmic amplifier are powered by a single-voltage power source, and these circuit and appliers have reference input terminals supplied with a common bias voltage.