baber/WOPTO huggingface dataset:
Patent CA-2126094-A1 (CA)
Title: Induced tolerence to xenografts
Inventor: SACHS DAVID H
IPC: A61K35/26
Filed: 1993-01-07
Abstract: The invention features medicaments designed to lengthen the time an implanted organ (a xenograft) from a donor mammal survives in a recipient mammal of a discordant species prior to rejection.  One such medicament is prepared by admixing with a pharmaceutically acceptable carrier substance hematopoietic stem cells, of the donor mammal for introduction into the recipient mammal.
Patent CA-2127724-A1 (CA)
Inventor: BURTCH RONALD P
IPC: G09F1/06
Filed: 1994-07-11
Abstract: ERECTABLE PERISCOPING DISPLAY DEVICE                Abstract of the Disclosure A display device is provided which comprises a support portion and an integral display portion constructed in such a manner that the portions are relatively movable, through a periscoping action of the display portion, between a planar configuration of the device wherein the display portion is substantially covered by the support portion so as to form a card-like construction, and a erected configuration of the device wherein the display portion extends upwardly from a support formed by the support portion.  The display portion comprises a display panel including a tongue which in the erected configuration extends through a central slot in the display portion and a base including shoulders disposed on opposite sides of the tongue.  The support portion includes first and second pairs of serially arranged panels which, in the planar configuration, are disposed so as to lie flat and to overlie respective faces of the display panel and which, in said erected configuration, are arranged at an angle to form the support for the display panel.  An end panel of the support portion is secured to the base portion of the display portion.  A blank for making the device is also provided.
Patent CA-2127960-A1 (CA)
Title: Tie bar clip construction for heat exchangers
Inventor: VAN DEN NIEUWENHUIZEN JAN
IPC: F28F9/00
Filed: 1994-07-13
Abstract: ABSTRACT   Increased resistance to deformation caused by internal pressure within a heat exchanger acting in a direction generally transverse to the length of tubes (18) ex-tending between spaced headers (10,12) is achieved in a construction wherein side pieces (22) sandwiching the core defined by the tubes (18) and interposed fins (20) are coupled by means of tie bars (30) having transverse ends (32) embracing the side pieces (22). Resilient clips (40) act to secure the tie bars (30) to the side pieces (22) and include retention notches (54) to positively hold the clips (40) assembled to the structure.
Patent CA-2128384-A1 (CA)
Inventor: CAMPING PAUL C
IPC: B01D35/143
Filed: 1994-07-19
Abstract: ?bstract of the Disclosure A differential housing includes magnetic filters  for removing  metal  particulate  from  oil  circulating within  the differential mechanism of a vehicle.  The differential housing also permits the level and temperature of the oil to be monitored.
Patent CA-2129416-A1 (CA)
Title: Fermentation process for preparation of antihypercholesteremic products
Inventor: GERSON DONALD F
IPC: C07D309/30
Filed: 1994-08-03
Abstract: ABSTRACT OF THE DISCLOSURE           A process is provided herein for the production of hypocholesteremic compounds, e.g., Lovastatin or Mevastatin.          The process  comprises  fermenting  a micro-organism of the genus  Coniothyrium,  e.g.,  Coniothyrium  fuckelii,  in  a suitable medium containing specified quantities of glucose, corn starch, soybean flour, meat extract, peptone and sodium, potassium and magnesium salts, the medium having a slightly acidic, and then recovering such compounds therefrom.
Patent CA-2129506-A1 (CA)
Inventor: AHAMED SYED V
IPC: G06N5/04
Filed: 1994-08-04
Abstract: KNOWLEDGE MACHINE METHOD AND APPARATUS ABSTRACT:      The present invention is a knowledge machine method and apparatus for processing information and evolving knowledge.  The apparatus includes at least one processor; a knowledge machine including a main memory operatively connected to the processor(s), and a plurality of knowledge machine hardware modules at least indirectly connected to the main memory.  The modules include a communication module, a switching module, an administrative module and at least one knowledge base module.  There is also hardware, firmware and software in the knowledge machine hardware modules to enable the modules to perform at least the following functions:  for the communication module, to control all functional processes of the other modules, the main memory and the processor(s);  for the switching module, to select and switch between selected  information;  for the administrative module, to perform housekeeping functions, including multitasking control with resource allocation, real-time multitasking and scheduling of tasks; for the knowledge base module(s), to operate knowledge processing functions and to store knowledge data banks.  In some preferred embodiments, the knowledge processing functions of the knowledge base module may be logical, inductive, associative, inferential and deductive reasoning type functions.
Patent CA-2130249-A1 (CA)
Inventor: VAN DEN SYPE JAAK S
IPC: C04B35/638
Filed: 1994-08-16
Abstract: A process for removing binder from a body comprising ceramic particles and binder by heating the body at a substantially constant rate of temperature rise over the temperature range where a peak rate of body weight loss occurs in a gaseous environment of inert gas and oxidizer wherein the oxidizer concentration varies with the rate of temperature rise to reduce the peak rate of body weight loss.
Patent CA-2132072-A1 (CA)
Title: Farm implement frame
Inventor: FRIGGSTAD TERRANCE
IPC: A01B73/00
Filed: 1994-09-14
Abstract: The invention is a frame for use in farm implements having a crank mounted on a frame element rotatable between a first position and a further position which is lockable in the first position, a tool support pivotally mounted on the crank and an actuator operable to raise and lower the tool support in relation to the ground and to raise the tool support to a transport position.
Patent CA-2134669-A1 (CA)
Title: Data logger
Inventor: FULCHER MALCOLM
IPC: A01K61/90
Filed: 1993-04-21
Abstract: A data logger includes a housing (20, 22) containing at least one sensor (30, 46); programmable control means (24) including a pre-programmed Erasable Programmable Read Only Memory (EPROM) containing control instructions and sensor drivers for all sensors (30, 46); a Random Access Memory (RAM) (80) providing data storage means for storing data from the or each sensor (30, 46); power means (42); and electro-magnetic transfer means (36, 38) for accessing the logger and for recovering data from the data storage means from external to the casing; the RAM (80) being adapted to accept, from external to the housing and via the electro-magnetic transfer means (36, 38), instructions on the sensor drivers to evoke a desired sampling regime; the logger also including a power up coil (44) is provided within the housing (20, 22) to enable power from external to the housing to be supplied during programming and during recovery of data.
Patent CA-2135373-A1 (CA)
Inventor: BEWART DIETMAR
IPC: C07C17/10
Filed: 1994-11-08
Abstract: Abstract Process for preparing highly chlorinated paraffins The chlorination of paraffins is carried out  in the presence of water and in the absence of a solvent. In this way it is possible to prepare highly chlorinated paraffins in a simple manner. The presence of hydro-chloric acid even at high temperatures has no deleterious effect on quality. The separation of the chloroparaffin from the hydrochloric acid is very good. An emulsion layer which hinders the transport of the chloroparaffin into downstream equipment does not occur.
Patent CA-2137509-A1 (CA)
Title: Multiple pulse width modulation circuit
Inventor: LEE YOUNG W
IPC: H02M3/335
Filed: 1994-12-07
Abstract: The control system includes a programmable microprocessor in bus communication with memory units and a plurality of motor drivers, each of the motor drivers being in electrical communication with a respective motor for controlling the operation of the respective motor in response to data from the microprocessor. The microprocessor data includes PWM control data and clock data. Data registers are in communication with the data bus for reading and writing of PWM control data to and from the data registers. A programmable clock is provided for reading the clock data and producing a plurality of independent clock pulses in response to the clock data. An address decoder is responsive to an address on the address bus for enabling the programmable clock for programming and for enabling others registers for writing of the PWM data to the data registers. A multi-stage PWM generator is provided having a plurality of independent PWM stages. Each of the PWM stages is in electrical communication with a respective motor driver, and each PWM stage, in response to the PWM data writing to register, and one of the clock pulses for generating an independent PWM signal responsive to the PWM data and the clock pulse.
Patent CA-2141100-A1 (CA)
Inventor: CARRIERE CLAUDE
IPC: H01S5/026
Filed: 1995-01-25
Abstract: L'invention concerne un laser à l'état solide de grande puissance, associant une plaque émissive (12) de lasers semiconducteurs (4) (premier étage) qui pompent un laser solide (13) de type YAG (second étage). La structure de la plaque émissive (12) qui est un circuit intégré, comprend une alternance de barrettes (2, 3) de lasers semiconducteurs (4) et de tranchées (9) entre ces barrettes (2, 3) qui sont parallèles entre elles. L'invention consiste à incruster le matériau des barreaux de laser solide (13) dans les tranchées (9) qui séparent les lasers semiconducteurs (4). Ce matériau est soit rapporté sous forme hybride, soit déposé sous forme intégrée. Application aux lasers de très grande énergie lumineuse.
Patent CA-2141428-A1 (CA)
Title: Methods for positive immunoselection of stem cells
Inventor: KESSLER STEVEN
IPC: A61K35/28
Filed: 1993-07-27
Abstract: The invention relates to improved methods and kits for the positive immunoselection of target cells wherein the cells are immobilized to a solid matrix via an immune complex containing a soluble hapten and an anti-hapten antibody and are dissociable by hapten competition. The invention in particular relates to an improved positive immunoselection for purifying lympho-hematopoietic stem and progenitor cells from heterogeneous cell compositions, and a novel immune reagent for effecting this purification.
Patent CA-2142044-A1 (CA)
Title: Method and apparatus for controlling dynamic random access memory devices
Inventor: RAGHAVACHARI PARTHA
IPC: G06F12/02
Filed: 1995-02-08
Abstract: A memory system (30), comprised of a plurality of banks (320-327) of DRAM devices (10) is controlled by a memory controller (34) that not only determines the presence and density of the DRAM devices upon power-up, but also controls their addressing during normal operation. The memory controller addresses the DRAM devices in each bank by providing each with a complete row address and a complete column address that simultaneously specifies the row and column address for the condition when the DRAM device is symmetric and asymmetric. In this way,the controller can accommodate both symmetric and asymmetric DRAM devices in the same bank.
Patent CA-2143171-A1 (CA)
Title: Modular power supply system
Inventor: JOHNS DOUGLAS A
IPC: H02M3/28
Filed: 1995-02-22
Abstract: A modular power supply system (10) is provided for providing a multiplicity of output voltages from a plurality of respective converter modules (70a - 70n).          Each of the converter modules (70a - 70n) has an input coupled to a DC high voltage bus (22) from which a respective output voltage is generated.  The voltage supplied on DC bus (22) is generated by a power factor corrected boost converter circuit (20) which is coupled to an AC input source (12).  Further, a battery backup module (40) is coupled to the high voltage DC bus (22) for supplying backup power whenever the bus voltage drops below a predetermined level.
Patent CA-2144835-A1 (CA)
Inventor: MURSCHALL URSULA
IPC: B32B27/20
Filed: 1995-03-16
Abstract: The invention relates to an oriented, multilayer poly-olefin film which comprises a polyolefinic base layer and at least one heat-sealable outer layer, which contains from 0.01 to 1% by weight, based on the weight of the outer   layer,   of   approximately   spherical   ceramic particles.    The  invention  also  relates  to  a  process  for  the production of the film and to its use.
Patent CA-2145041-A1 (CA)
Title: Process for preparing bubble-free adhesive compositions
Inventor: MCEWAN GREGORY R W
IPC: C09J9/00
Filed: 1995-03-20
Abstract: Light transparent, visible bubble-free, curable adhesive compositions, their method of manufacture and their use in producing optically brilliant three-dimensional signs for both interior and exterior use are disclosed. The compositions include acrylate based UV light curable monomers and oligomers and moisture curable room temperature vulvanizing silicones, optionally comprising UV stabilizers. The compositions may contain dispersed pigments and are made by low shear mixing, such as static mixing or rolling, optionally, followed by spinning to remove visible air bubbles.
Patent CA-2147410-A1 (CA)
Title: Circuitry for use with coaxial cable distribution networks
Inventor: ROMEREIN ROBERT L
IPC: H01R13/646
Filed: 1995-04-20
Abstract: A conducting housing (to be closed by a lid) for a coaxial cable distribution network has a common port and one of an aerial or pedestal port.  A motherboard  carries  an RF circuit and a transfer switch.  In one setting of the transfer switch the RF circuit connects a coaxial pin at the common port with a coaxial pin at the pedestal port.  In the other setting the common port pin is connected to the aerial port pin.  When the aerial port is used on a rectangular housing, a transmission line forms  part of the RF circuit  between  the motherboard and the aerial port.  The transmission is preferably a central conductor spaced over most of its length by air from an outer conductor in the form of an inverted U enclosing the central conductor on three sides.  Preferably a ground plane on the back of the motherboard connects to the transmission line outer conductor to provide a path entry in the housing at both ends for ground currents generated by signals in the RF path.
Patent CA-2148903-A1 (CA)
Title: Rosin derivative as surfactants
Inventor: HEMMINGS PAUL NICHOLAS
IPC: C09K23/34
Filed: 1993-11-15
Abstract: Surfactant obtainable by and method for the production thereof comprising (1) esterifying a rosin with an alcohol to an acid value of loss than 30, (2a) grafting the rosin ester with an unsaturated acid or anhydride, the mole ratio carboxylic acid or anhidride/rosin (calculated as each rosin associated with a rosin ester) being from 0.05:1 - 1.5:1, (3a) esterifying grafted rosin ester with a polyethylene glycol with an Mw of 1000 - 20000 the mole ratio glycol/free carboxylic acid group being from 0.2:1 - 1:1 to an acid value of less than 30, alternatively(2b) esterifying an unsaturated acid or anhydride with a polyethylene glycol with a Mw of 1000 - 20000 the mole ratio glycol/free carboxylic acid group or anhydride being from 0.2:1 - 1:1 to an acid value less than 30, (3b) grafting the rosin ester from (1) with the ester from (2b), the mole ratio ester from (2b)/rosin ester (calculated as in (2a)) being from 0.05:1- 15:1. The invention also relates to the use of the surfactant as a dispersing agent for tackifiers, to an aqueous trickifier dispersion comprising the surfactant as well as to the use of the aqueous tackifier dispersion in a pressure sensitive adhesive.
Patent CA-2149518-A1 (CA)
Inventor: DERISAVI-FARD FOAD
IPC: F03G7/00
Filed: 1994-07-07
Abstract: L'invention concerne un acteur électrochimique pourvu d'un compartiment à gaz, qui comprend plusieurs cellules (7) disposées en pile, dont chacune contient une électrode solide réalisée dans un matériau pouvant être oxydé de manière réversible par procédé électrochimique et une contre-électrode générant du gaz ou en consommant. Une élévation ou un abaissement de la pression convertible en un mouvement peut être provoqué(e) par un processsus réactionnel électrochimique réversible généré par un courant continu. Afin de limiter la formation de gaz et le mouvement vertical, il est prévu un commutateur électrique à commande mécanique dont l'élément d'actionnement (14) est placé dans la trajectoire d'un élément de réglage (4) auquel est appliquée une pression de gaz, de manière à ce que, lorsque l'élément de réglage (4) a atteint une position finale donnée, la ligne de raccordement menant à la source de courant continu soit interrompue.
Patent CA-2149837-A1 (CA)
Title: Communication system capable of preventing dropout of data block
Inventor: KAWAMURA HARUMI
IPC: H04L12/40
Filed: 1995-05-19
Abstract: In a data communication system, even when cycle start data is dropped out, a dropout of a data block can be prevented to effectively utilize a frequency band.  In the communication system, more than one data block arrived for every preselected time period is transmitted as a packet subsequent to a communication start signal at a time period next to the time period when the more than one data block has arrived, and then a maximum number of data blocks capable of being transmitted within a predetermined time period is determined.
Patent CA-2151058-A1 (CA)
Title: Improved double containment piping system and centralization seal therefor
Inventor: SILVERS TERREL W
IPC: F16J15/00
Filed: 1993-11-18
Abstract: A double containment piping system for securing a primary pipeline (32) in position within and enabling pressure testing of a surrounding secondary pipeline (28) which interconnects two or more sump chambers (18, 20, 22). Centralization  seals (56) are affixed to the interior surface of opposite ends of the secondary pipeline and to an adjacent exterior surface of the primary pipeline to form an airtight wall and seal the space between these surfaces. An air insertion fitting (58) allows pressure testing of the sealed spaces between the primary and secondary pipelines. Air bridge hoses (60) can interconnect air insertion fittings within a sump chamber to permit simultaneous pressure testing of more than one secondary pipeline in the secondary pipeline system. The seals further provide a centralization function to limit the radial movement of a primary pipeline within a secondary pipeline to reduce the risk of impact damage caused by pressure spikes in the primary pipeline system.
Patent CA-2153994-A1 (CA)
Title: Noninvasive pulsed infrared spectrophotometer
Inventor: BRAIG JAMES R
IPC: G01N21/35
Filed: 1994-01-21
Abstract: A method and apparatus for monitoring glucose, ethyl alcohol and other blood constituents in a noninvasive manner. The measurements are made by monitoring infrared absorption of the desired blood constituent in the long infrared wavelength range. The long wavelength infrared energy generated by source (400) is passed through a finger (406). To prevent the high energy source from burning or causing patient discomfort, shutter (404) and bandpass filters (410) cause only short bursts of energy to be sent through the finger with a very low duty cycle and low optical bandwidth. The bursts are further synchronized by shutter (404) with systole and diastole of the cardiac cycle so that only two pulses are sent per heart beat, one during diastole and one during systole. The detection signals measured at detectors (412) during application of these bursts of energy are used to calculate the concentration of blood constituents in accordance with a polynomial equation.
Patent CA-2155280-A1 (CA)
Title: Monolithic laser-mirror substrate
Inventor: BERGMAN CLARK
IPC: C03C17/34
Filed: 1995-08-03
Abstract: A method of making small mirrors for laser applications.  A relatively large substrate is deposited with a mirror to make a mirror-substrate combination.          Mirror assemblies of a desired size are then cut out of the mirror-substrate combination.  Savings occur in that only mirrors which meet quality standards are then subject to secondary processing for specific applications.
Patent CA-2156123-A1 (CA)
Inventor: KEMP WILLIAM HARRY
IPC: H02P27/16
Filed: 1995-08-15
Abstract: A power supply for a variable speed AC motor, comprising waveform generation means for generating a periodic pulsed waveform according to a desired motor speed; an adjustable source of DC potential; and inverter means, coupled to said waveform generation means and to said source of DC potential, for providing an AC pulse train to said AC motor, said pulse train having waveform characteristics according to said pulsed waveform to obtain said desired speed, and a voltage amplitude according to said DC potential wherein motor currents can be controlled at any said desired motor speed by varying said DC potential.
Patent CA-2157178-A1 (CA)
Inventor: WAHL ERROL HOFFMAN
IPC: C07C211/63
Filed: 1994-02-23
Abstract: The present invention relates to softening compounds; stable, homogeneous, preferably concentrated, aqueous liquid and solid textile treatment compositions; and intermediate compositions and/or processes for making said compositions. The compositions of the present invention contain diester quaternary ammonium compounds wherein the fatty acyl groups have an Iodine Value of from greater than about 5 to less than about 100, a cis/trans isomer weight ratio of greater than about 30/70 when the Iodine Value is less than about 25, the level of unsaturation being less than about 65 % by weight, wherein said compounds are capable of forming concentrated aqueous compositions with concentrations greater than about 13 % by weight at an Iodine Value of greater than about 10 without viscosity modifiers other than normal polar organic solvents present in the raw material of the compound or added electrolyte.
Patent CA-2158846-A1 (CA)
Title: Method and apparatus for circulating solid material in a fluidized bed reactor
Inventor: HYPPANEN TIMO
IPC: F23C10/24
Filed: 1994-03-28
Abstract: A reactor chamber (12, 112, 312) of a fluidized bed reactor (10) has an internal circulation of particles. Larger recirculated particles are prevented from contacting heat transfer surfaces (40, 140) by classifying particles adjacent the bottoms (24, 124, 224) of the reactor chamber (12, 112, 312) using a particle chamber (22, 122, 222, 322) having a barrier wall (30, 130, 230, 330) with holes (50) or slots (52) of a maximum dimension of less than about 30 mm. The heat transfer surfaces (40, 140) may be disposed in the particle chamber (22, 122, 222, 322). Larger particles flow down the walls of the particle chamber into the reactor chamber, and some fine particles within the particle chamber are preferably recirculated back to the fluidized bed. The barrier wall is preferably the top wall of the particle chamber, and may be refractory lined with furrows (54), and/or may be formed of water tubes (64) connected together by fins (66), with the holes or slots formed in the fins.
Patent CA-2160087-A1 (CA)
Title: Process for coding or decoding motion vectors and coding or decoding device implementing the said process
Inventor: KERDRANVAT MICHEL
IPC: H04N7/32
Filed: 1995-10-06
Abstract: The invention relates to a process for the differential coding of a motion vector (MV0) associated with a macro-block (M0). This process comprises the steps: determining the components (MV0x, MV0y) of the said motion vector (MV0), determining a prediction vector, each component (Px, Py) of which is equal to the median value of the corresponding components of at least three candidate motion vectors (MV1, MV2, MV3), a candidate motion vector being a vector associated with a previously coded macro-block , subtracting the components thus obtained from the components of the vector to be coded. The invention also relates to a process for decoding motion vectors coded in the manner described above, as well as to the implementation devices. The invention applies to the field of image compression.