baber/WOPTO huggingface dataset:
Patent CA-2028016-A1 (CA)
Title: Autoequalizing bidirectional-to-unidirectional hybrid network
Inventor: CAESAR DAVID D
IPC: H04L5/14
Filed: 1990-10-19
Abstract: AUTOEQUALIZING BIDIRECTIONAL-TO-UNIDIRECTIONAL      HYBRID NETWORK                          Abstract of the Invention An autoequalizing hybrid circuit for providing a cancelation path to minimize the two-wire receive path signals that are reflected onto a two-wire transmit path from a subscriber line interface circuit is disclosed. The hybrid circuit includes a variable impedance balance network. A tone generator Injects a set of equalization signals into the receive path which are used to control the setting, or equalization, of the balance network. The tone generator also generates a supervisory signal into the receive path used to monitor the performance of the balance network. A detect circuit monitors the level of the reflected equalization sidetone signals and produces balance signals whenever the equalization signals fall to a null level. The detect circuit also monitors the supervisory sidetone signals and produces a recalibration signal whenever an abrupt change in the signals indicates that the balance network is no longer adequately cancelling their reflected signals.  A microprocessor controls the generation of the equalization and supervisory signals and is connected to the detect circuit for monitoring production of the balance and the recalibration signals. When the hybrid is first activated,  the microprocessor initially sets the balance network impedance with reference to the balance signals. After the balance network is equalized the microprocessor directs the tone generator to produce the supervisory sidetone signals. The microprocessor then monitors the detect circuit for recalibration signals and if they are produced, reequalizes the impedance of the balance network.     DSG/dsg/ktk
Patent CA-2028525-A1 (CA)
Title: Achromatic fiber optic coupler
Inventor: MILLER WILLIAM J
IPC: G02B6/287
Filed: 1990-10-25
Abstract: An achromatic fiber optic coupler of the type wherein first and second single-mode optical fibers, each having a core and a cladding, are fused together along a portion of the lengths thereof to form a coupling region. A matrix glass of lower index than the fiber claddings surrounds the coupling region. The fiber diameters are smaller in the coupling region than in the the remainder of the fibers.      The refractive index n2 of the cladding of the first fiber is different from the refractive index n~ of the cladding of the second fiber, the difference between the refractive indices n2 and n~ being such that the coupler exhibits very little change in coupling ratio with wavelength over a band of wavelengths.
Patent CA-2030146-A1 (CA)
Title: Radiographic elements with improved covering power
Inventor: FABRICIUS DIETRICH M
IPC: C07D277/70
Filed: 1990-11-16
Abstract: TITLE       RADIOGRAPHIC ELEMENTS WITH IMPROVED COVERING POWER    An improved, tabular grain radiographic element is described.  This element contains a covering power enhancing amount of a thione and exhibits improved covering power and contrast over elements made without the thione.
Patent CA-2030381-A1 (CA)
Inventor: LEFEVRE DIDIER
IPC: G01N33/50
Filed: 1990-11-19
Abstract: The invention relates to a reagent and to a method of using same for automatically determining at least one leukocyte sub-population from a total blood sample.  Thanks to this reagent, it is possible, in a single step, to lyse the erythrocytes through the action of saponin and SDS, as well as to ensure the differential staining of the leukocyte sub-populations, at the same time preserving the integrity and morphology of the cells, through the combined action of various components including chlorazol black, an alcohol, a surfactant and preserving agents. The reagent according to the invention can be applied to different types of automatic flow cytometry analyzers.
Patent CA-2031788-A1 (CA)
Inventor: KELLER FRITZ
IPC: A01K1/015
Filed: 1990-12-07
Abstract: METHOD OF MAKING AN ABSORBENT PAPER-CONTAINING GRANULATE          ABSTRACT OF THE DISCLOSURE A method of making an absorbent granulate of paper, with or without additives, includes mechanically comminuting paper into irregular and/or strip-shaped fragments, crumpling and interlacing the fragments with attendant development of internal spaces (cavities) in the interlaced and crumpled fragments, rough pressing the interlaced and crumpled fragments into prepressed formations (e.g., into tubes having a diameter of up to or even in excess of 10 mm), and converting the prepressed formations into particles, particularly into granules or pellets.  The crumpling and interlacing step can include agitating the fragments in one or more streams of a gaseous fluid and/or kneading the fragments. The additives can be admixed during at least one of the comminuting, crumpling and interlacing, rough pressing and converting steps and can include substances which reduce the specific weight of granules, substances which alter the magnetic and/or electrostatic properties of the mixture of fragments and additives, aromatic substances, deodorants, disinfectants or materials which influence the wettability of paper.  Up to 20 percent by weight of water can be added to paper in the course of at least one of the comminuting, crumpling and interlacing, rough pressing and converting steps.  The granulate can be used as litter or as an oil binding material.
Patent CA-2032174-A1 (CA)
Title: Multistage reactor
Inventor: BUURMAN CORNELIS
IPC: C08G59/00
Filed: 1990-12-13
Abstract: A B S T R A C T                      MULTISTAGE REACTOR      A multistage reactor comprising a cylindrical housing provided with inlet and outlet openings for cocurrent flow of liquid reactants and product, a series of stator rings mounted on the internal wall of the housing, a series of rotor rings mounted on a central rotatable shaft, each internal volume between successive rings defining one stage, the stator rings radially overlapping the rotor rings such that relatively narrow slits remain between the rotor rings and the inner wall of the housing and between the stator rings and the outer wall of the central shaft, said slits having a length (L) to width (W) ratio of from 3 to 12, the distance in axial direction between the stator and the rotor rings being larger than W.          T0475FF.MKl
Patent CA-2032383-A1 (CA)
Title: Hanger for a multiple tube heat exchanger
IPC: F28F9/013
Filed: 1990-12-17
Abstract: A hanger assembly for securing a hairpin type heat exchanger to a frame having cross members, the heater exchangers including an upper leg supported on the cross members and the lower leg supported on the upper leg by the hanger assembly, the hanger assembly including a U-shaped rod mounted on the upper leg and a plate supported by the U-shaped rod under the lower leg, the U-shaped rod including a notch to form an end section at each end of the rod, the end sections being bent at the notches to hold the plate in engagement with the lower leg.
Patent CA-2034601-A1 (CA)
Title: Solder mask vacuum laminator conversion
Inventor: BRIGUGLIO JAMES
IPC: G03F7/16
Filed: 1991-01-18
Abstract: ABSTRACT OF THE DISCLOSURE    A method of and apparatus for eliminating waste of dry film solder mask material in an existing solder mask vacuum laminator in which dry film being laminated to printed circuit boards also spaces the boards from each other and serves as an interconnection therebetween comprises modification of the laminator to adapt it for use in the vacuum lamination of boards to the surfaces of which dry film already has been loosely applied by tacking of the film to the leading and trailing edges of each board.  Such modification comprises substituting a reel of carrier film for that one of the dry film supply reels that supplies dry film beneath the boards to be laminated.  Additionally, an automatic rewind or takeup unit for the carrier web is provided at the discharge end of the laminator.  The original machine shafts for the supply reels of dry film are retained for use with the supply reel for the carrier film and for the rewind unit.  All other machine functions are retained.
Patent CA-2036813-A1 (CA)
Title: Bypass valve door
Inventor: STRANSKY LARRY W
IPC: F02C9/18
Filed: 1991-02-21
Abstract: Patent 13DV-10393 Abstract A  bypass  valve  door  includes  a   pivotable first  end,  a second end, and an inner surface for facing fluid flow in a bypass valve system.   The  door  includes a  seal  seat  extending  obliquely  from  the door second end.  In a preferred embodiment, both the door seal  seat and  first  end  are  configured  for providing seals with adjacent  stationary   structures   when   the   door   is positioned  in  a  closed  position.   When  the door  is positioned  in  an  open  position,  the  inner surface is configured for providing an aerodynamically  smooth  fluid boundary with structures adjacent thereto.
Patent CA-2038119-A1 (CA)
Inventor: RIEDEL JOHN E
IPC: C09J7/21
Filed: 1991-03-12
Abstract: Release coated nonwoven sheet materials are provided through the process of (a) forming a web from fibers; (b) applying a water-based binder to the web; (c) applying a water-based release coating to one side of said web while the web is still wet from the application of the binder; and (d) drying said web. This process eliminates at least one heating step, with unexpected control of the migration of the release coating through the web.
Patent CA-2039808-A1 (CA)
IPC: B60T8/1755
Filed: 1991-04-04
Abstract: ABS YAW CONTROL            Abstract of the Disclosure In a vehicle anti-lock brake controller, a differential slip between the wheels on each side of an axle is sensed to detect a yaw condition and the wheel with the lower slip value is identified as the high coefficient wheel.  In response to a detected yaw condition, the monitored value of slip of the high coefficient wheel is controlled  about a target slip value that has an initial value less than the critical slip value at the beginning of antilock controlled braking to minimize longitudinal force imbalance and which is thereafter ramped to the critical slip value to maximize longitudinal braking forces.
Patent CA-2041342-A1 (CA)
Inventor: GREGO GIORGIO
IPC: G01J3/28
Filed: 1991-04-26
Abstract: An optical spectroscopy system is provided, in which a pulse of a radiation to be analyzed is passed through a diffractive  element presenting high temporal  chromatic dispersion  so  as  to  provide  temporal  dispersion of different wavelengths comprised by the radiation, and the temporal dispersion is measured either directly or by converting  the  temporal  dispersion  into a  spatial dispersion, so as to provide data by correlation of the measured  dispersion  and  the  characteristics  of  the diffractive  element,  which  is  preferably  an  elongated optical fibre trunk.
Patent CA-2045088-A1 (CA)
Title: Optical connector and a method for assembling the same
Inventor: SHIBATA NOBUYUKI
IPC: G02B6/38
Filed: 1991-06-20
Abstract: ABSTRACT OF THE DISCLOSURE An optical connector comprising an optical fiber cable including a nylon-coated fiber, a tension member thereon, and a sheath covering the nylon-coated fiber and the tension member, a ferrule provided at the distal end of the optical fiber cable so as to be attached to the distal end of the nylon-coated fiber, and a holder having a distal end restricted in position by the ferrule when mounted on the nylon-coated fiber.  The optical connector is constructed so that the holder is mounted on the nylon-coated fiber by after-attachment.     A method for assembling an optical connector which comprises an optical fiber cable including a nylon-coated fiber, a tension member thereon, and a sheath covering the nylon-coated fiber and the tension member, a ferrule provided at the distal end of the optical fiber cable so as to be attached to the distal end of the nylon-coated fiber, a holder having a distal end restricted in position by the ferrule when mounted on the nylon-coated fiber, an urging spring fitted on the nylon-coated fiber so as to be interposed between the ferrule and the holder and adapted to urge the ferrule forward, and a gripper attached to the rear portion of the holder.  In this method, the holder is formed of a split body such that the holder is mounted on the nylon-coated fiber by after-attachment after the ferrule is mounted on the distal end of the fiber and the spring is then fitted on the rear portion of the ferrule.
Patent CA-2048088-A1 (CA)
Title: Method for gravel packing wells
Inventor: YEH CHARLES A
IPC: E21B43/04
Filed: 1991-07-29
Abstract: A method for gravel packing perforations against homogeneous or heterogeneous reservoir formations utilizing a shear-thickening or dilatant fluid as the carrier medium of gravel. Use of this fluid provides for rheological behaviour which improves both transporting and packing efficiencies/ uniformities.
Patent CA-2050442-A1 (CA)
Inventor: FLORET MICHEL
IPC: G01N27/90
Filed: 1991-08-30
Abstract: - Dispositif pour l'examen non destructif d'une pluralité de tronçons de jonctions rivetées ou analogues, chacun desdits tronçons étant individuellement identifiable grâce à des moyens d'identification, ledit dispositif comportant au moins une sonde de détection (23) de type électrique, déplaçable le long desdits tronçons de jonctions (7).   - Selon l'invention, ce dispositif comprend des moyens à mémoire (43) contenant, pour chaque tronçon de jonction, sa constitution spécifique et, pour chaque constitution spécifique de tronçon de jonction, le réglage de fonctionnement à appliquer à ladite sonde et un microprocesseur (36) exploite le contenu desdits moyens à mémoire pour commander ladite sonde (23) en fonction de la constitution spécifique du tronçon de jonction en cours d'examen.
Patent CA-2053342-A1 (CA)
Title: Nickel electroplating process with reduced nickel ion build up
Inventor: TREMMEL ROBERT A
IPC: C25D17/10
Filed: 1991-10-11
Abstract: ABSTRACT OF THE DISCLOSURE           A process for electrodepositing nickel on a conductive substrate in a manner which inhibits buildup of nickel ions in the electrolyte.  A sacrificial anode and insoluble iron anode are immersed in a nickel electroplating bath.   The current provided to the iron anode is controlled during plating to reduce the amount of nickel buildup on solution.
Patent CA-2053681-A1 (CA)
Title: Surgical device
Inventor: SMITH GRAHAM
IPC: A61B17/32
Filed: 1991-10-18
Abstract: A surgical device having a surgical element removably connected to a drive element so that drive torque is transmitted to the surgical element as the drive element rotates, while allowing the surgical element at least one degreee of freedom of motion relative to the drive element; a retaining element maintains the drive and surgical elements in torque-transmitting relation during operation of the device.
Patent CA-2054042-A1 (CA)
Inventor: PRIMEAU MARIO
IPC: B60N3/04
Filed: 1991-10-23
Abstract: An automobile floor mat is provided with a removable and reversible pan portion that snugly fits inside a central recessed area to collect contaminants. One side of the pan is provided with a plurality of diagonal ridges, the space between the ridges forming grooves to collect liquids. The other side of the pan may be constituted of an abrasive surface such as sand paper-like.
Patent CA-2059027-A1 (CA)
Inventor: ARAMAKI TOSHIYA
IPC: H04L49/111
Filed: 1992-01-08
Abstract: In a fast packet switching system, packet distributers are associated respectively with input ports for receiving successive packets therefrom and attaching a timeslot number to each of the received packets, and uniformly distributing the packets to output terminals of each distributer. Packet switches are provided corresponding in number to the output terminals of each packet distributer. Each packet switch has input terminals corresponding in number to the packet distributers and output terminals corresponding in number to the output ports. The input terminals of each packet switch are coupled to respective output terminals of the distributers for switching a packet from one of its input terminals to one of its output terminals in accordance with a destination address contained in the packet. Packet sequencers are associated respectively with the output ports. Each packet sequencer has input terminals coupled to respective output terminals of the packet switches for examining the timeslot numbers attached to packets from its input terminals and delivering the packets to the associated output port in accordance with the examined timeslot numbers.
Patent CA-2060233-A1 (CA)
Inventor: YU CHIEN P
IPC: A63B67/18
Filed: 1992-01-29
Abstract: TITLE:  ARTICLES OF PLAY FOR USE IN THE GAME OF          HIT AND CATCH          ABSTRACT    Articles of play including a racket having a handle portion and a board portion integrally formed together, the board portion including a plate, a flexible layer and a front layer coupled together, the front layer having all of its front surface defined by VELCRO materials, and a ball having all of its surface defined by VELCRO materials, and the ball can be hit by the plate of the racket and can be caught by the front layer of the racket.
Patent CA-2060278-A1 (CA)
Title: Enhanced generation of adherent lymphokine-activated killer cells with interleukin-2 and interleukin-4 from l-phenylalanine methyl ester-treated human peripheral blood cells
Inventor: LEUNG KAM H
IPC: A61K35/12
Filed: 1992-01-29
Abstract: TITLE Enhanced Generation of Adherent Lymphokine-activated Killer Cells with Interleukin-2 and Interleukin-4 from L-phenylalanine Methyl Ester-treated Human Pexipheral Blood Cells ABSTRACT OF THE INVENTION      Peripheral blood mononuclear cells (PBMC) are treated to deplete monocytes and the remaining cells are cultured in a medium containing interleukin-2 (IL-2) without interleukin-4 (IL-4).  Nonadherent cells are removed and discarded, and adherent cells are further cultured in a medium of IL-2 and IL-4 which expands the A-LAK cell population of the PBMC.  The expanded, enriched A-LAK cells can be placed in a pharmaceutically acceptable carrier and administered to a mammal with IL-2 to treat a tumor.
Patent CA-2061530-A1 (CA)
Title: Manipulative skill game apparatus
Inventor: DOBSON JOHN
IPC: A63F7/00
Filed: 1992-02-19
Abstract: ABSTRACT            A game in which an object such as a ball is manoeuvred upon a meandering path upwardly slanting to a goal in which the object is directed along the path a manipulating means where the object is free to move laterally along an edge of the manipulating means under the force of gravity as the manipulating means is tilted from the horizontal and the object may be advanced or retracted by sliding the manipulating means forward or backward along the path.
Patent CA-2061796-A1 (CA)
Title: High mobility integrated drivers for active matrix displays
Inventor: SARMA KALLURI R
IPC: H01L29/78
Filed: 1992-02-25
Abstract: High mobility thin film transistors for fabricating integrated drivers for active matrix displays and a special method of fabrication for obtaining the thin film transistors having mobility sufficiently high enough as drivers operable in the several megahertz frequency range needed for driving high resolution active matrix displays.
Patent CA-2063814-A1 (CA)
Title: Protective equipment having a rebound controlling insert
Inventor: BEAUREGARD ROBERT
IPC: A63B71/12
Filed: 1990-07-20
Abstract: An improved synthetic pad is used in sports equipment in a three-tiered system. A front visible layer, called a cosmetic component layer, is made to the taste and color of a player or a team. A  second component is a backing pad layer. The third and novel component of the present invention is a foam insert layer of about one inch thickness. A pocket provided on the rear of the cosmetic component layer or on the front of the backing pad layer may be provided for receipt of the foam insert layer. The foam insert layer is made and structured in such a way that it provides a choice of rebound possibilities for a player. The foam insert layer may be homogeneous, or lacerated on one side to a depth of about 1/2 inch in a predetermined pattern. The laceration may be performed by either a blade or with a hot wire or with a thermo-setting foam molded to its final shape. The lacerated surface of the foam insert layer may then be submitted to a temperature which will cause it to shrink and harden so as to provide a vee-shaped gap tapering inwardly form the exterior of the foam insert layer to a central portion of the foam insert layer. By the size of the geometric pattern produced in the foam layer, the rebound distance of an object off of the protective equipment is controlled.
Patent CA-2064044-A1 (CA)
Title: Method for recovery of riboflavin
Inventor: GYURE DALE C
IPC: C07D475/14
Filed: 1990-07-19
Abstract: ABSTRACT A method  for the recovery of riboflavin from a fermentation broth or other feed stock is disclosed. The method comprises a process for the production of large,  pure  riboflavin  crystals  from  an alkaline, aqueous solution containing solubilized riboflavin.  The method can further comprise the process for production of large, pure riboflavin crystals in combination with two solids/liquid separation steps, the latter of which can result in a final riboflavin product purity of at least  about 96% by weight.   The riboflavin recovery method, in varying degrees of detail, is illustrated in Figs. 1 through 3.
Patent CA-2064548-A1 (CA)
Title: Power conservation in a radio data communication system
Inventor: HAYMOND WILLIAM D
IPC: H04B7/00
Filed: 1992-03-31
Abstract: POWER CONSERVATION FOR BATTERY POWERED    UNITS IN A COMMUNICATION SYSTEM               Abstract of the Disclosure A power conservation arrangement for battery operated emote units (26) in a radio data communications system (10) or the like wherein a destination address (Fig. 2) may be extracted from a received data packet and extracted from a received data packet and examined without initial error correction. If not within a predetermined tolerance range, the involved remote unit simply powers down at that juncture and reenters full battery saver mode. An arrangement is further included to guard against undue falsing even tho destination address are examined which may in fact have bit errors occurring therein.
Patent CA-2064969-A1 (CA)
Title: Molding and assembling apparatus and method
Inventor: PAYNE LEROY
IPC: B28B15/00
Filed: 1992-04-02
Abstract: Mobile structural unit molding and assembling appa-ratus includes a support portion, a raw material supplying portion, a molding portion, a unit transferring portion and a control portion. The support portion includes at least one base section with a wheeled carriage. The raw material supplying portion includes a plurality of reser-voirs disposed on the base section. The molding portion includes at least one rotatable mold assembly disposed on the base section including at least two separable mold sections. A mixing chamber adjacent the mold assembly connects with raw material reservoirs through independent conduits. The unit transferring portion includes a tiltable unit positioning assembly selectively movable with respect to the molding portion. The control portion includes a programmable memory, a coordinator, sensors, actuators, a unit orienter and circuitry therefor. A continuous struc-tural unit molding and assembling method includes the steps of flowing a freshly formed resin forming mixture over all surfaces of a mold cavity by multiaxis rotation to form a structural unit, conveying the unit not fully cured, orient--ing the unit in an inclined orientation, and assembling it with previously positioned units, and the resulting structure.
Patent CA-2065919-A1 (CA)
Title: Leydig cell stimulator
Inventor: CHENG C YAN
IPC: C07K1/20
Filed: 1992-04-13
Abstract: ABSTRACT OF THE DISCLOSURE         The present invention relates to a compound which when administered to Leydig cells in the testes stimulates   the   production   of   androgen   such   as testosterone.   This  compound,  when mixed with other known  compounds,  can  produce  testosterone  levels  in excess of those obtained by the administration of a maximal stimulatory dose of LH.