baber/WOPTO huggingface dataset:
Patent CA-2244321-A1 (CA)
Title: Oxygen barrier structure for a flexible hose
Inventor: BARNES JOHN A
IPC: F16L11/08
Filed: 1998-07-28
Abstract: An oxygen barrier is provided herein for a flexible hose. To provide such oxygen barrier, the hose includes a first tube, an aluminum foil bonded exteriorly about that first tube and a second tube bonded exteriorly about that aluminum foil. The first tube and the second tube each comprising at least 20 percent by weight of ethylene propylene dime polymethylene and from 2 to 9 percent by weight of polybutadiene-maleic anhydride adduct resin. The first tube and the second tube each are bonded to the aluminum foil by thermal curing in the presence of peroxide in the amount of 0.6 percent to 2.8 percent by weight of tube material.
Patent CA-2245171-A1 (CA)
Title: Smart telecommunications interface
Inventor: STELMAN BRUCE W
IPC: H04M1/60
Filed: 1997-03-27
Abstract: The present invention overcomes interface problems between proprietary handset ports on telephone base units and voice/data accessory products by allowing a user to automatically calibrate the telephone accessory product for an optimal interface match with the intended telephone base unit. This is accomplished through the use of a "Smart Interface Technology" (SIT) integrated chip set consisting of a full custom analog and semi-custom digital integrated circuit. The SIT incorporates three different methods for "learning" the characteristics of 4-wire port modular interfaces found in all telephone station sets. Basically, these methods determine the appropriate 4-wire terminal configurations, the transmit and receive channels of the intended telephone base unit, and adjust the channel sensitivities until an optimal and clear signal is provided for the user.
Patent CA-2246430-A1 (CA)
Inventor: CHENG JILL
IPC: A61K38/00
Filed: 1997-03-17
Abstract: This invention concerns new non-receptor protein tyrosine phosphatases of the hematopoietic stem cells (PTP HSC). The invention specifically concerns native murine and human PTP HSCs, their analogs in other mammals, and their functional derivatives. The invention further relates to nucleic acid encoding these proteins, vectors containing and capable of expressing such nucleic acid, and recombinant host cells transformed with such nucleic acid. Assays for identifying agonists and antagonists of the native PTP HSCs, methods for expansion of undifferentiated stem cells, and methods for the induction of stem cell differentiation are also within the scope of the invention.
Patent CA-2247484-A1 (CA)
Title: Process of laying synthetic grass
Inventor: PREVOST JEAN
IPC: E01C13/08
Filed: 1998-09-21
Abstract: The invention relates to a synthetic grass turf assembly for installation on a supporting soil substrate to provide a game playing surface that combines the feel of natural turf with the wear resistance of synthetic turf. The turf assembly includes a pile fabric with a flexible sheet backing and rows of upstanding synthetic ribbons representing grass blades, extending upwardly from an upper surface of the backing. A  unique infill layer of multiple distinct graded courses of particulate material is disposed interstitially between the upstanding ribbons upon the upper surface of the backing and of a depth less than the length of the ribbons. A base course is first placed upon the top surface of the backing and consists exclusively of hard sand granules.  A middle course of intermixed hard sand and resilient rubber granules with relative weight ratio of 3 to 1 is then placed upon the base course. A top course exclusively of resilient rubber granules is then placed upon the middle course. The relatively thin top course that is in contact with users, has a high resilience where contact occurs and low abrasion due to exclusive use of rubber. The base sand course provides weight to hold the turf in place and to quickly drain the surface. The middle layer of mixed sand and rubber granules acts as a buffer to keep the base sand and top rubber courses separate avoiding migration of abrasive sand towards the top surface level. An upper portion of the synthetic ribbons extends upwardly from the top surface of the top course 0.25 to 1.00 inches to give the appearance of grass blades. Preferably the upper portion of the synthetic ribbons is fibrillated, split or frayed on site by passing over the installed surface with a stiff wire brush. The fibrillated surface has a slight resilience and visually appears like a natural grass turf. The criss-crossed fibrillated fibres contain the top course rubber granules while allowing dislodged rubber granules to fall back into place and permitting water to drain through to the sand containing courses.
Patent CA-2248377-A1 (CA)
Title: Hoisting device
Inventor: STOOF PIETER MARIA
IPC: B66C23/26
Filed: 1997-02-28
Abstract: A hoisting device (1) comprising at least a hoisting mast (7), a foot (4) arranged on the underside and connected to the at least one hoisting mast, and hoisting means (6) connected at least to the top of the hoisting mast (7), wherein the hoisting device (1) is assembled from components or elements (8), the largest of which has dimensions which do not exceed those of a normal container, whereby the entire hoisting device (1) can be transported easily and inexpensively by land, sea or air.
Patent CA-2250194-A1 (CA)
Title: Method and apparatus for sorting flat articles
Inventor: HARRES LUIZ C
IPC: B07C1/02
Filed: 1997-03-28
Abstract: A method and apparatus (10) for automatically sorting and feeding flat articles (75). The method stacks flat articles (75) into cartridges (25) in output compartments (20) of a sorting machine (15), robotically (30) transfers filled cartridges (25) from the output compartments (20) of a sorting machine (15) to a buffer shelf (40); and from the buffer shelf (40) to a docking station (55) of a cartridge unloader (275) and automatic feeder (50) to the input of the sorting machine (15), and for transferring empty cartridges (25) from the docking station (55) to either the buffer (40) or the output compartments (20) of the sorter.
Patent CA-2252181-A1 (CA)
Title: Capturing unpaginated hypertext in a paginated document
Inventor: SWEET RICHARD ERIC
IPC: G06F40/143
Filed: 1998-10-29
Abstract: A method for converting a semantic markup representation of a document into a physical markup representation of the document calculates a logical minimum width equal to the minimum width required to display all screen objects within the document at their normal size, creates a physical markup representation of the document, the physical markup representation having a width at least as wide as the logical minimum width, and conforms the physical markup representation to a target size, including a target width by scaling the width of the physical markup representation by a scaling factor derived from the ratio of an element of the target size to the logical minimum width.
Patent CA-2254823-A1 (CA)
Title: Emulsions of perfluoro compounds as solvents for nitric oxide (no)
Inventor: SEITZ WILLIAM A
IPC: A61K9/00
Filed: 1997-04-16
Abstract: The present invention involves perfluoro compound emulsions including nitric oxide, their preparation and their use. These emulsions provide a new source of nitric oxide. Such nitric oxide-containing emulsions maybe used for the administration of nitric oxide to individuals in need thereof. Individuals in need of nitric oxide administration can include those suffering from hypertension, preeclampsia and a number of other situations where an increased blood flow, for example, is desirable. In addition, given the long use of perfluoro compound emulsions as blood substitutes, the present invention provides a relatively safe mode for administering and distributing nitric oxide, (see Figure 1) - without potential negative side effects such as toxicities due to drug metabolites.
Patent CA-2254920-A1 (CA)
Inventor: LIAO W ANDREW
IPC: C09K8/04
Filed: 1997-05-12
Abstract: A dry mix additive, which is used to form a clay-free, i.e, non-argillaceous, inorganic salt-free, i.e., non-brine, biodegradable and chemically degradable aqueous-based wellbore fluid, which is capable of imparting non-Newtonian, pseudoplasticity and fluid loss controlling properties to aqueous systems for use in horizontal directional drilling, finding utility in horizontal environmental well installation for soil and groundwater remediation. The dry mixture comprises (1) from about 80-90 by weight of pre-gelatinized corn starch heteropolysaccharide, and (2) from about 10-20 by weight of a synthetic biopolymer such as Xanthan gum treated with a dispersing agent (glyoxal) for ease of dispersion. Sodium hypochlorite can be added, if desired, to the wellbore fluid to provide resistance to bacterial attack. The dry mixture is added to either fresh water or acidic water in amounts of 12-15 pounds of the dry mixture to a barrel (42 U.S. gallons) of water and then used as a drilling fluid in drilling horizontal wells for soil and groundwater remediation. Also, if desired, calcium hypochlorite can be circulated through the borehole following the drilling operation to accelerate the degradation of the polymers in the wellbore fluid. Following the drilling of the borehole, the contaminated formation fluids are withdrawn from the borehole.
Patent CA-2255235-A1 (CA)
Title: Preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine having a cis/trans isomer ratio of at least 70:30
Inventor: ROS KARL-HEINZ
IPC: C07C209/26
Filed: 1998-12-15
Abstract: A process for the preparation of 3-aminomethyl-3,5,5-trimethylcyclohexylamine having a cis/trans isomer ratio of at least 70:30 by a) imination of 3-cyano-3,5,5-trimethylcyclohexanone with ammonia in the presence of an imination catalyst at temperatures of from 200 to 150°C  and pressures of from 1.5 to 30 MPa to form 3-cyano-3,5,5-trimethylcyclo-hexanone imine followed by b) hydrogenation of the 3-cyano-3,5,5-4rimethylcyclohexanone imine in the presence of ammonia over a catalyst containing copper and/or a Group VIII  metal at a temperature of from 80° to 160°C and under a pressure of from 5 to 30 MPa, wherein the catalytic hydrogenation of the 3-cyano-3,5,5-trimethylcyclohexanone imine is carried out in the presence of an acid used in an amount such as to give an acid number of from 0.1 to 2, based on 3-cyano-3,5,5-trimethylcyclohexanone used.
Patent CA-2256209-A1 (CA)
Inventor: MUENTER CLAES
IPC: B01D53/72
Filed: 1998-12-15
Abstract: A process for recovery of thermal energy from contaminated vapor while simultaneously separating volatile organic substances is described, in which the vapor is introduced into a heat exchanger and a heat-absorbing medium is introduced into the heat exchanger, and a heat-absorbed medium is withdrawn therefrom. The vapor is introduced into the lower part of the heat exchanger, and a gas phase enriched with said substances is withdrawn from the top of the heat exchanger, and the condensate poor in said substances is withdrawn from the bottom of the heat exchanger. A device for carrying out the process is described, including a heat exchanger, an inlet for the contaminated vapor, a condensate outlet and an outlet for the volatile substances. The inlet for the contaminated vapor is arranged in the lower part of the heat exchanger, and the outlet for the condensate is arranged at the bottom of the heat exchanger.
Patent CA-2256277-A1 (CA)
Title: Multiple registered postage meter
Inventor: BRAND PATRICK M
IPC: G06F21/33
Filed: 1998-12-17
Abstract: A system and method of evidencing postage payment includes selecting a postal origin in a meter accounting unit, selecting a requested postal value to be printed on a mailpiece, deducting the requested postal value from a total postal value stored as a general account for the meter accounting unit, adding the requested postal value to a sub-account corresponding to the selected postal origin for the meter accounting unit, and printing the requested postal value and the selected postal origin on the mailpiece. A digital token is generated as evidence of the requested postal value to be printed on the mailpiece. The digital token, which is also printed on the mailpiece, is encrypted information including the requested postal value and the selected postal origin. The accounting unit includes a first processor, secure accounting process, value storage and a digital signature generator. The value storage includes total postal value information and an origin postal value for each of a plurality of postal origins, wherein the PSD is authorized to dispense evidence of postage payment for each of the postal origins. The accounting unit performs accounting for each postage evidencing transaction, debiting the total postal value and incrementing one of the origin of postal values corresponding to the postage evidencing transaction.
Patent CA-2259468-A1 (CA)
Inventor: MALMASSON JACQUES
IPC: G21C17/02
Filed: 1997-07-02
Abstract: The detector (25) comprises a body (26, 27) defining a chamber (28), means (32) for linking the body (26, 27) of the detector (25) with an element of an industrial installation, so as to connect the detector (25) chamber (28) with the internal space of the installation element and means for detecting (29, 37, 30b) a liquid overflow in the detector (25) chamber (28). Preferably, the detecting means consist of a float (29) integral with a permanent magnet (37) and an electric switch (30b) sensitive to the permanent magnet (37) magnetic field. The detector body (26, 27) can be fixed in particular on the nozzle of a conduit for instruments of a nuclear reactor cooled by water under pressure, to detect a leakage of the cooling water in the conduit.
Patent CA-2260037-A1 (CA)
Inventor: LEVY RUTH
IPC: A61P25/16
Filed: 1997-06-20
Abstract: Pharmaceutical compositions for the treatment of a neurological disorder or neurotrauma or for improving memory in a patient, comprising a therapeutically effective amount of S-(-)-N-propargyl-1-aminoindan or a pharmaceutically acceptable salt thereof as active ingredient, and a pharmaceutically active carrier. The pharmaceutical compositions are adapted, in particular for treating a neurological disorder or neurotrauma involving damage caused to the central or peripheral nervous system as a result of ischemic damage, stroke, hypoxia or anoxia, neurodegenerative diseases, Parkinson's Disease, Alzheimer's Disease, neurotoxic injury, head trauma injury, spinal trauma injury or any other form of nerve damage.
Patent CA-2260885-A1 (CA)
Title: Method for making printed circuits and resulting printed circuit
Inventor: DROZ FRANCOIS
IPC: G06K19/077
Filed: 1996-07-18
Abstract: A method for making a printed circuit from a dielectric film coated with one or more conductive metal layers is disclosed. The method comprises a step of marking out the various conductive paths by mechanically machining grooves in the conductive layer. Machining is carried out using a sharp cutting tool for cutting grooves between the conductive paths without removing any of the conductive material or driving it downwards. For example, a swaging punch or a cutting table controlling a blade may be used to cut grooves. The method is also suitable for making multilayer circuits and is particularly useful for producing flexible printed circuits, connectors, and the like, as well as inductance coils such as those used in smart cards.
Patent CA-2261249-A1 (CA)
Inventor: CHEN FANG-AN
IPC: C12N5/00
Filed: 1999-02-05
Abstract: An immunodeficient mammal, e.g. a mouse, having engrafted human lymphocytes which retain the ability to show a normal human immune response.  The human lymphocytes in these mammals, e.g. mice, no longer have a xeno-response of the human lymphocytes but do have the ability to respond to exogenous antigens, essentially from the time of engrafting of the human lymphocytes into the mice. This has resulted in an animal model that is able to test the efficacy of human immunotherapeutic protocols. Further, by combining the xenotolerant human lymphocytes (huPBL) with human tumors, human anti-tumor immunity can be monitored. The invention also includes the method of using the mammal to test human immune response.
Patent CA-2261483-A1 (CA)
Inventor: HART ARTHUR CLIFFORD JR
IPC: B60T8/172
Filed: 1999-02-11
Abstract: A process for determining at least one dynamic of a vehicle, particularly slip angle, during travel. The process involves optically monitoring, in real time and from the vehicle itself, the movement in one or more camera images of surface features as the vehicle passes over the surface. The direction in which the surface features are moving at any given time indicates the actual direction of vehicle movement with respect to the orientation of the optical monitoring equipment. From this actual direction of movement, in combination with the known orientation of the optical monitoring equipment and the direction in which the vehicle is being steered, it is possible to calculate the slip angle in real time.
Patent CA-2261845-A1 (CA)
Inventor: WATCHORN JAMES L
IPC: H04L49/111
Filed: 1999-02-12
Abstract: A packet switch has a switching unit (SU) for switching packets between network links and a computing unit (CU) connected to the SU through a network link for implementing software control functions over the SU. The SU is formed of different functional components interconnected by generic buses. The components communicate with one another using program data units (PDUs) that are formatted and transmitted according to a shared device protocol. The communication between the components occurs by placing PDUs in bus frames that are passed from component to component.      Information is exchanged between the components by adding information to or dropping information from the fields of the PDUs, or by concatenating new fields to the PDUs, as the frames pass from component to component. By using a generic bus to implement PDU-based interconnections within the SU, all the components are forced to support a common interface. Changes to the implementations of any component's interface can thus be accommodated by changing the PDU format as opposed to changing the interfaces of connected components. The new packet switch architecture decouples the components on the switch so that they can be upgraded or otherwise modified independently of one another.
Patent CA-2265673-A1 (CA)
Title: Polymeric foam reservoirs for an electrotransport delivery device
Inventor: MURDOCK THOMAS O
IPC: A61K9/00
Filed: 1997-12-09
Abstract: A method is provided for preparing a novel therapeutic agent-containing reservoir (26, 28) for use in conjunction with an electrotransport drug delivery system (10). A polymeric matrix is foamed in a selected atmosphere and then cross-linked to form a polymeric closed-cell foam matrix reservoir (26, 28).  The method enables relatively smaller quantities of therapeutic agent to be loaded into the electrotransport system (10) and is especially useful for the transdermal delivery of more costly drugs, such as peptides and proteins produced from genetically engineered cell lines, and/or highly potent drugs for which a small dosage is efficacious. Reservoirs (26, 28) prepared according to this method and electrotransport devices (10) containing such reservoirs are also provided.
Patent CA-2266412-A1 (CA)
Title: Compositions containing cobalamin and amino acids
Inventor: BRENNAN THOMAS F
IPC: A61K47/18
Filed: 1997-09-17
Abstract: Novel compositions of cobalamin and related corrinoids, and uses thereof, are disclosed. The novel compositions include a corrin, a first amino acid having a side chain which includes a basic or positively charged moiety; and a second amino acid with an uncharged side chain which includes at least one heteroatom. The compositions are useful for, inter alia, treatment of cobalamin deficiency.
Patent CA-2267088-A1 (CA)
Inventor: MALFAIT JACQUE L
IPC: A23L7/17
Filed: 1999-03-29
Abstract: The present invention includes puffed-food starch material snack, in particular starch material from grains, having an improved crispy texture and a more aesthetic appearance and methods for preparing them. In general terms, the products are snack chips, cakes, crackers or the like, made from food starch material. Preferably, the starch material is provided primarily in the form of individual kernels or pellets of a cereal grain, such as rice, corn, wheat, rye, oats, millet, sorghum, barley, buckwheat, or mixtures thereof. Quantities of other food starch materials may also be employed as a co-mixed constituent, or the primary source of bulk starch material, for example potato starch material. A quantity of the grain is puffed (expanded) in a manner which forms a snack product of considerable crispiness, 1lightness, and unique texture to both the mouth and eye. According to a method of making the puffed food starch material product of the present invention, a puffing chamber is provided having inner surfaces and a chamber volume. A bulk amount of the food starch material is placed into the puffing chamber. The bulk amount of food starch material is caused to volumetrically expand. The expanding food starch material is constrained in its expansion in at least a first dimension, while permitting expansion of the bulk amount in at least a second dimension.
Patent CA-2267947-A1 (CA)
Title: Preparation of 3-fluoro oxindole derivatives
Inventor: PENDRI YADAGIRI R
IPC: A61K31/404
Filed: 1997-10-07
Abstract: The present invention relates to novel itermediates of formula (1) wherein the wavy bond (- -) represents the racemate, the (R)-enantiomer or the (S)-enantiomer; and R is hydrogen, a carboxyl-protecting group or a cation of an addition salt; or solvate thereof;  and to the use thereof in a process for the preparation of certain 3-fluoro oxindole derivatives.
Patent CA-2268392-A1 (CA)
Inventor: MATHEW CHEMPOLIL THOMAS
IPC: B01J35/12
Filed: 1997-09-25
Abstract: L'invention concerne un procédé de production de cyanocinnamamides et notamment un procédé consistant à condenser un cyano-acétamide avec un composé contenant carbonyle, afin de produire des cyanocinnamamides, avec un bon rendement.
Patent CA-2269722-A1 (CA)
Title: Oligomers which inhibit the expression of interleukin genes
Inventor: HAMANAKA SHOJI
IPC: A61K31/7125
Filed: 1997-08-29
Abstract: Oligomers for inhibiting expression of interleukin genes are described. It is be lieved that each oligomer, when introduced into a cell, is capable of forming a transcription-inhibiting complex composed of the oligome r and an interleukin gene. The oligomer preferably binds in the antiparallel orientation to the polypurine strand of a polypurine-polypyr imidine region of the interleukin gene.
Patent CA-2271238-A1 (CA)
Inventor: NIEDERMAIR SIEGFRIED
IPC: E01B3/46
Filed: 1999-05-05
Abstract: A composite railroad cross tie supporting railroad track rails on a ballast or concrete roadbed is provided comprising a wooden core and an outer shell or coating.  The wooden core consists of virgin or recycled natural wood or of man made engineered wood such as oriented strand board (OSB), plywood, and the like. The outer coating can consist of virgin or recycled thermoplastic, thermoset resin, and/or rubber, with or without fillers or reinforcements.
Patent CA-2272387-A1 (CA)
Inventor: DONDERO RUSSELL A
IPC: B01D39/14
Filed: 1997-11-24
Abstract: An air filtration or fluid treatment system includes a nonwoven filter media or mat (10) formed from a plurality of elongated generally hollow fibers (20) each having an internal cavity (22) which has an opening (24) to the fiber surface and each retaining within the internal cavity a large number of relatively small solid particles (18), which interact with the air or other fluid stream to be treated. The solid adsorbent particles (18), such as activated carbon, are permanently entrapped within the longitudinal cavities (22) of the fibers (20) without the use of an adhesive or without being embedded onto or within the polymer fiber.