baber/WOPTO huggingface dataset:
Patent CA-2206085-A1 (CA)
Inventor: HOWELL GLADE HAROLD
IPC: A61M5/32
Filed: 1997-05-26
Abstract: An over-the-needle catheter placement assembly includes an elongate catheter with an open bore therethrough. The catheter has a tapered distal end and a proximal end with a hub. The assembly includes an elongate hollow handle with a distal end that has an opening therethrough and a proximal end. Included in the assembly is an elongate needle with a sharp distal point, a proximal end and an open passageway therethrough. The assembly has a substantially transparent elongate needle hub with a distal end portion with theproximal end of the needle fixedly attached therein. The needle is coaxially slidably disposed within the catheter bore with the catheter hub mounted on the distal end portion of the needle hub so that the sharp distal pointed end of theneedle projects beyond the tapered distal end of the catheter. The needle hub isslidably disposed for coaxial movement within the hollow handle between a first position where the distal end portion of the hub axially projects through the distal opening in said hollow handle so that the needle is distally outside the hollow handle and within the catheter bore and a proximal position to withdraw the needle into the handle. There is an elongate flashback chamber within the needle hub also that is fluidly connected to the proximal end of the needle and extends into the distal end portion of the needle hub.
Patent CA-2208345-A1 (CA)
Title: Vena caval filter
Inventor: GHELMAN BERNARD
IPC: A61B17/50
Filed: 1995-12-26
Abstract: A coaxial filtering device (10) for removing particles from arteries and veins comprises an outer catheter (14) that can be inserted into a blood vessel, and an inner catheter (17) with a filter at its distal end. The filter (13) is a radially expandable receptacle made of an elastic mesh structure of spring wires or plastic mono-filaments. The filter (13) expands into engagement with the walls of the blood vessel when it is pushed from the distal end of the outer catheter. A syringe (22) is attached to the proximal end (19) of the inner catheter (17), and particles entrapped within the filter (13) are aspirated through the inner catheter (17) into the syringe (22). When filtering is no longer necessary, the filter (13) can easily be removed by pulling the elastic material through the outer catheter (14).
Patent CA-2208355-A1 (CA)
Title: Improved process for making preforms useful for encapsulating semiconductors
Inventor: CHIN NEEP HING
IPC: B29C45/00
Filed: 1995-12-07
Abstract: Preform useful for encapsulating semiconductors and other electric or electronic devices are prepared by a process which comprises warming thermoset resin to form a melt, injecting it into a mold, and cooling to form a solidified molding, all without substantially curing the thermoset resin.
Patent CA-2209084-A1 (CA)
Title: Lewis x derivative and process for producing the same
Inventor: TANAKA MASASHI
IPC: C07H15/18
Filed: 1995-12-26
Abstract: A novel sugar derivative having a cell adhesion inhibitory activity and represented by structural formula (I).
Patent CA-2209684-A1 (CA)
Title: Process for preparing 2,4-dioxo-3-azabicyclo[3.1.0]hexanes
Inventor: LAWSON NICHOLAS JOHN
IPC: C07D209/52
Filed: 1997-07-07
Abstract: A process for preparing a compound of formula (I):                 (see fig.I) wherein R is C1-C6 alkyl, C3-C6 cycloalkyl or benzyl, and wherein the phenyl moiety of said benzyl group is optionally substituted with one or two substituents each independently selected from halo, nitro, C1-C6 alkyl, C1-C6 alkoxy, amino and trifluoromethyl, which comprises treating a solution of a compound of formula (II):     (see fig.II) wherein R is as defined for formula (1), and a halonitromethane in a first organic solvent, with a quaternary ammonium fluoride of formula (III):         (see fig.III) wherein R1, R2, R3 and R4 are each independently selected from C1-C8 alkyl and benzyl, optionally in solution in a second organic solvent.
Patent CA-2210424-A1 (CA)
Title: Method and apparatus for power management in a multifunction controller with an embedded micro-processor
Inventor: HARRIS IAN FRASER
IPC: G06F1/32
Filed: 1997-07-14
Abstract: A method and apparatus for providing power management functions in a multifunction controller having an embedded microprocessor. An enter sleep mode indication is received in the microprocessor in the form of, for example, a command generated by a host central processing unit or an interrupt indicating a lack of system activity for a predetermined period of time. The clock input to the microprocessor is switched from a first clock source to a second clock source in response to the enter sleep mode indication. The main system supply may then be powered down by the microprocessor. The first clock source is then turned off after expiration of a first predetermined delay. The second clock is subsequently turned off after a second predetermined delay, to thereby place the system and the microprocessor into a sleep mode. While the system and microprocessor are in the sleep mode, an interrupt-handling portion of the microprocessor and a power control logic circuit remain powered off a low-current standby supply. Upon detection of a wake-up event, the second clock source is automatically started and applied to the microprocessor after a predetermined delay. The microprocessor can then process the wake-up event indicator, and if necessary power up the system and re-connect itself to the first clock source.
Patent CA-2211239-A1 (CA)
Inventor: KIMURA ATSUSHI
IPC: H04L7/08
Filed: 1997-07-23
Abstract: In  a  TDMA communication  system having one master station  and  a  plurality  of  slave  ststions,  phase synchronization  of  output  frame  phases  between  slave stations is established with quite simple construction.          In  the  master  station,  a  super  frame  consisted  of  a plurality of standard  frames  is  generated in the super frame generating portion.  In the master station, using a timing position matching loop already existing between the master station and the slave station, signal delay period between  the  slave  station  and  the  master  station  is derived.  The delay period is transmitted superimposing on the frame in the super frame period.  In the slave station, half  period  of  the  delay  period  defined  by  the  delay information is calculated.  The super frame is delayed for the corresponding period to out to the next stage service area.   By this, phase of the super frame is synchronized between all of the slave stations.
Patent CA-2211972-A1 (CA)
Title: Three-dimensional colorimetric assay assemblies
Inventor: REICHERT ANKE
IPC: G01N33/545
Filed: 1996-02-13
Abstract: A direct assay is described using novel three-dimensional polymeric assemblies which change from a blue to red color when exposed to an analyte, in one case a flu virus. The assemblies are typically in the form of liposomes which can be maintained in a suspension, and show great intensity in their color changes. Their method of production is also described.
Patent CA-2214013-A1 (CA)
Title: Lignin based polyols
Inventor: KURPLE KENNETH R
IPC: C07G1/00
Filed: 1996-12-27
Abstract: Certain lignins which are readily available from pulping processes function as a polyol component of an isocyanate system to make foams and urethane plastics. Use of the lignin in this manner provides moisture and flame resistance and produces products having sufficient rigidity. The sodium level must be controlled so that the reaction between the hydroxyl groups and the isocyanates produces products with the optimal properties.
Patent CA-2214263-A1 (CA)
Title: Reacteur a cycle de pression
Inventor: LAUGHARN JAMES A JR
IPC: C12M1/00
Filed: 1996-03-07
Abstract: L'invention concerne des procédés et un appareil au moyen desquels on utilise la pression pour réguler avec precision la programmation et, de préférence, la synchronisation de réactions chimiques, en particulier des réactions enzymatiques.
Patent CA-2214272-A1 (CA)
Inventor: GABER BENNY
IPC: A61B10/00
Filed: 1996-02-27
Abstract: Appareil de prélèvement de tissu utérin comportant une canule creuse (12), un grattoir déformable (14) servant à gratter l'utérus, un vibrateur (42) servant à déformer le grattoir déformable (14), et un dispositif d'aspiration (16) servant à aspirer la matière grattée par le grattoir déformable (14).
Patent CA-2217046-A1 (CA)
Title: Gas-phase polymerisation of conjugated dienes in the presence of rare earth allyl compounds
Inventor: MAIWALD STEFFEN
IPC: C08F36/04
Filed: 1996-03-22
Abstract: Conjugated dienes can be successfully gas-phase polymerised in the presence of catalysts based on rare earth allyl compounds, organic aluminium compounds and an inorganic carrier. The diene rubbers produced by this process have a high cis-1,4 double bond content and a 1,2 double bond content of over 1 %.
Patent CA-2220100-A1 (CA)
Inventor: VALLE FERNANDO
IPC: C12N15/52
Filed: 1996-05-03
Abstract: This invention describes methods for enhancing carbon flow into a pathway of a host cell to enhance the biosynthetic production of compounds therefrom, the host cells being selected based on being phenotypically Pts-/glucose+. Such host cells are capable of transporting glucose without consuming PEP, resulting in conservation of PEP which can be re-directed into the pathway in order to enhance the production of desired compounds along the pathway. Pts-/glucose+ mutants have been shown to be advantageous for the enhanced production of the aromatic amino acids.
Patent CA-2222985-A1 (CA)
Title: Gutter-downspout connection unit
Inventor: ST-JACQUES JEAN L
IPC: E04D13/08
Filed: 1998-02-18
Abstract: An easy clean system for an eavestrough 6 at the eaves of a roof 9 on a building 7 comprising a chamber 1 connected to an elbow 8 in the eavestrough 6, so that the system will extend vertically down along an exterior wall of the building 7 and carry rainwater away from the roof 9. A facility 2 within the system is for separating any dirt and debris 10 that falls into the rainwater in the eavestrough 6, so that the rainwater will flow without obstruction out through the facility 2 and out the downpipe 3 into the drain tile 5.
Patent CA-2223691-A1 (CA)
Title: Tumor- or cell-specific herpes simplex virus replication
Inventor: MIYATAKE SHIN-ICHI
IPC: A61K39/12
Filed: 1996-06-06
Abstract: A method for killing tumor cells in vivo entails providing replication competent herpes simplex virus vectors to tumor cells. A  replication competent herpes simplex virus vector, with an essential herpes simplex virus gene which is driven by a tumor-specific or cell-specific promoter that specifically destroys tumor cells and is not neurovirulent. Also, a method for producing an animal model, by ablating a specific cell type in vivo, entails providing replication competent herpes simplex virus vectors to the animal. Such a vector, with an essential herpes simplex virus gene driven by a cell- or tissue-specific promoter, specifically destroys the target cell type. This method of viral-mediated gene therapy employs cell-specific viral replication, where viral replication and associated cytotoxicity are limited to a specific cell-type by the regulated expression of an essential immediate-early (IE) viral gene product.
Patent CA-2224641-A1 (CA)
Title: Audio-video conferencing system
Inventor: LEONDIRES ARTHUR P
IPC: H04N7/15
Filed: 1996-03-04
Abstract: A processor unit for a multipoint audio-video conferencing system (100), wherein the processor unit includes a host processor (140) for controlling operation of the audio-video conferencing system (100). The processor includes a plurality of digital signal processors (180-194), in communication with each other over a first bus (150) and in communication with and controlled by the host processor over a second bus (152). The processing required by the conferencing functions is distributed between the plurality of digital signal processors (180-194).
Patent CA-2224766-A1 (CA)
Inventor: CHESNEY DAVID J
IPC: G05D11/13
Filed: 1997-12-12
Abstract: Ferromagnetic tagging material is suspended in a constituent of a two constituent mixing system.  Two tagging material sensors are employed that respectively monitor the tagged constituent as it flows in the system alone and the mixed constituents as they flow to a dispenser nozzle.  A monitor calculates the volumetric ratio of the two constituents present when mixed based upon the concentration of tagging material sensed by each sensor.  A warning is given when the calculated ratio exceeds predetermined limits.
Patent CA-2227545-A1 (CA)
Title: Field based process control system with auto-tuning
Inventor: HAYS COY L
IPC: G05B11/42
Filed: 1996-08-09
Abstract: A process control system (100) controls a process (110) through a control output signal (u(t)) based on a set point (YSET) and a measured process variable (y(t)). The process control system (100) includes a control circuit having a set point input, a process variable input and a control output. The control circuit generates the control output signal (u(t)) on the control output as a function of the set point (YSET) received on the set point input and the measured process variable (y(t)) received on the process variable input. An auto-tuning circuit (106) excites the process (110), estimates a process model based on a rising dead time, a rising rate-of-change, a falling dead time and a falling rate-of-change in the measured process variable (y(t)) and then tunes the control function to the process (110) based on the process model. The auto-tuning circuit (106) obtains robust results, but is computationally simple such that the circuit can be implemented with hardware or software in low-power and low-memory applications, such as in field-mounted control units.
Patent CA-2229738-A1 (CA)
Inventor: OTREMBA WERNER
IPC: F27B1/10
Filed: 1998-02-18
Abstract: A top closing device for shaft furnaces, particularly blast furnaces, including an inlet hopper with inlet pipe, a rotating, vertically non-adjustable chute carrier with rotary drive, a pivotable chute in the furnace interior with external drive means, and sealing members between the rotating and stationary components.  The rotating chute carrier is mounted with a gear ring attached to a flange in a ball bearing slewing rim arranged on a catch basket.  The rotary movement of the rotating chute carrier is effected outside of the furnace space by an electric motor drive with pinion.  The catch basket is arranged on the furnace support ring of the gas seal hood.  The pivoting or tilting movement of the chute relative to the furnace axis within the rotating chute carrier is effected by a hydraulic or electromechanical drive outside of the furnace space.  An annular sealing member for sealing relative to the rotating chute carrier is mounted on the furnace support ring next to the flange of the catch basket.  An annular sealing member for sealing relative to the stationary inlet pipe is mounted on the inner flange of the chute carrier.
Patent CA-2233987-A1 (CA)
Title: Materials and methods for treatment of plaquing diseases
Inventor: MCMICHAEL JOHN
IPC: A61P25/28
Filed: 1997-08-08
Abstract: Methods and compositions are provided for alleviation of disease states involving plaque formation, such as are manifested in Alzheimer's Disease and other amyloid disorders, and arteriosclerotic disease. Methods for the treatment of herpes virus infections including chronic fatigue syndrome by administration of thimerosal are further provided by the invention.
Patent CA-2239039-A1 (CA)
Inventor: OBERTELLO CARLOS ALBERTO
IPC: D04B21/10
Filed: 1998-05-28
Abstract: The present invention relates to a knitted fabric for manufacturing arts and crafts and/or for embroidering thereon. The new fabric has a symmetric configuration of up to 6 squares ("counts" per cm both lengthwise and across, and it is treated with a chemical or natural product. The knitted fabric takes in a great amount of sizing, thus displaying higher hardness and rigidity. This structure of the knitted fabric with sizing allows one to use any kind of needlework to embroider on it when making handicrafts. The new fabric is made 4 to 52 cm wide, thus allowing for inexpensive storage of the fabric in a reduced space, which is required for the storage of fabrics in a variety of colors. The new fabric may also be provided with festoons.
Patent CA-2239555-A1 (CA)
Title: Carte de paiement
Inventor: ROBERTS WILLIAM SHERBROOKE
IPC: B42D15/10
Filed: 1996-12-05
Abstract: L'invention concerne une carte de paiement constituée d'une plaque en caoutchouc ou d'un plastique stratifié dont la surface supérieure et de préférence la surface inférieure sont en métal précieux. Les couches de métal précieux sont collées au matériau caoutchouteux par une formulation adhésive appropriée ou au matériau plastique par un adhésif au latex. La carte plaquée a des propriétés de flexibilité uniques qui lui permettent d'être utilisée comme carte de crédit.
Patent CA-2239871-A1 (CA)
Inventor: LIDDELL JOHN MACDONALD
IPC: C08G63/89
Filed: 1996-12-13
Abstract: This invention relates to a process for producing polyhydroxyalkanoate (PHA) that overcomes a problem encountered when seeking to separate PHA particles without centrifugation. The process comprises producing a biomass containing PHA particles and non-PHA cell material (NPCM), solubilising the NPCM, oxidizing the resulting product mixture to further solubilise NPCM, adding a water soluble surfactant to produce a suspension, and heating the suspension below the melting point of the PHA to agglomerate the PHA particles to a suitable weight average diameter. In one emdobiment, the surfactant is a monomeric water soluble surfactant. In another embodiment, the weight average particle diameter is 200 µm to 500 µm.
Patent CA-2242190-A1 (CA)
Inventor: BRETON DENIS
IPC: F16C17/00
Filed: 1998-07-21
Abstract: A puller for extracting a member such as a bearing or bushing from a blind hole comprising an expandable split sleeve, a chuck for holding the expandable split sleeve, and a rod, the expandable split sleeve having a tubularly shaped body with an interior cavity, resilient biasing member holding the split sleeve in a closed position, and a flange proximate one end and which flange extends radially outwardly from the body, the flange terminating in a cutting edge. The rod member is insertable into the cavity and the rod and the cavity are sized that upon insertion, the rod will contact an interior wall and cause the split sleeve to expand radially outwardly. In situations wherein the puller does not have space behind the member, the cutting edge is designed to cut into and grip the member to be removed.
Patent CA-2243561-A1 (CA)
Title: Method, device and accessories for the manufacture of booklets
Inventor: SABELSTR M JAN
IPC: B42C11/06
Filed: 1997-01-22
Abstract: The present invention relates to a method, a device for assembling and producing of booklets. Each booklet having a cover that comprises two cover sheets and a spine disposed inbetween. A glue string is applied to the inner surface of the spine, and a sheet bundle inserted between the cover sheets of said cover and affixed at one end side edge to the inner surface of the spine by means of the glue string.
Patent CA-2247036-A1 (CA)
Inventor: HARM GARY CLIVE
IPC: B66F3/24
Filed: 1997-02-18
Abstract: A lifting apparatus (10) for lifting an endless conveyor belt (11) supported on a support frame structure (15) including two spaced apart frame members (33). The lifting apparatus (10) comprises a lower beam member (57) for extending between and resting on the two frame members (33) and an upper beam member (53) for engaging a section of the conveyor belt (11) to be lifted. A jack means (59) is operable between the two beam members (53, 57) for selectively moving the two members towards and away from each other between extended and contracted conditions. The jack means (59) comprises two telescopic rams (61) disposed to extend outwardly of the two beam members (53, 57) when in the contracted condition. This allows the two beam members (53, 57) to assume a compact arrangement when in the, contracted condition.
Patent CA-2249976-A1 (CA)
Title: Wearable camera system with viewfinder means
Inventor: MANN W STEVE G
IPC: G02B27/01
Filed: 1998-10-15
Abstract: A novel means and apparatus for a new kind of photography and videography is described. In particular, a wearable camera with a viewfinder suitable for long-term use is introduced. The system, in effect, absorbs and quantifies rays of light and processes this quantigraphic information on a small wearable computer system, then the processed information is re-constituted into light rays emerging to reconstruct the virtual image of objects at nearly the same position in space, or at a coordinate transformed position, as viewed by the wearer of the apparatus. The wearer of the apparatus becomes, after adaptation, an entity that seeks, without conscious thought or effort, an optimal point of vantage and camera orientation. Because of the wearer's ability to constantly see the world through the apparatus, which may also function as an image enhancement device, the apparatus behaves as a true extension of thewearer's mind and body, giving rise to a new genre of documentary video.
Patent CA-2250175-A1 (CA)
Title: Paper products having wet strength from aldehyde-functionalized cellulosic fibers and polymers
Inventor: HEADLAM MICHAEL MARTYN
IPC: D21H17/32
Filed: 1997-03-25
Abstract: Paper products having high initial wet strengths are disclosed. The paper products comprise cellulosic fibers having free aldehyde groups, which fibers are combined with a water-soluble polymer having functional groups that are reacted with the aldehyde groups to form bonds joining the fibers. In a preferred embodiment, the cellulosic fibers contain a polysaccharide in which the hydroxyl groups of at lease a portion of the repeating units of the polysaccharide are cis-hydroxyl groups, preferred repeating units being mannose and/or galactose, Similarly, the water-soluble polymer is preferably a polysaccharide in which the hydroxyl groups of at least a portion of the repeating units of the polysaccharide are cis-hydroxyl groups. Preferred polysaccharides are derived from one or more sugars selected from mannose, galactose, allose, altrose, gulose, talose and lyxose.
Patent CA-2251990-A1 (CA)
Inventor: NAUGHTON BRIAN A
IPC: A01N1/02
Filed: 1997-04-18
Abstract: A tissue engineering bioreactor is disclosed for growing three-dimensional tissue. Cells are seeded onto a mesh and provided with two media flows, each contacting a different side of the cells. The media flows contain different concentrations of nutrients, allowing nutrients to be delivered to the cells by diffusion gradient. The bioreactor can be used to grow liver tissue, and designed as an extracorporeal liver assist device in which blood or plasma is exposed to the three-dimensional liver tissue. The blood or plasma from a patient directed to flow against the liver tissue. The liver tissue is further exposed on its opposite side to media providing nutrients and gases. The device provides porous boundaries between the blood or plasma, tissue, and media, allowing nutrient and protein delivery by diffusion gradient to dialyze a patient's blood.
Patent CA-2253154-A1 (CA)
Title: Process for the manufacture of amorphous products by means of convection drying
Inventor: WINTER GERHARD
IPC: A61K47/18
Filed: 1998-10-30
Abstract: The invention relates to a rapid and readily reproducible process for producing dry, amorphous products which, besides biologically active, in particular therapeutically active, material, contain substance mixtures for stabilization by means of convection drying. The invention also relates to the amorphous, microscopically homogeneous products which are obtained by this process, are in the form of powders and have a uniform geometric, in particular spherical, shape. The invention furthermore relates to the use of substance mixtures for stabilizing biologically active material, in particular proteins by means of spray drying.