baber/WOPTO huggingface dataset:
Patent CA-2114941-C (CA)
Inventor: LARPENT CHANTAL
IPC: C08F112/00
Filed: 1993-06-04
Granted: 2001-11-20
Abstract: The present invention relates to polymer nanoparticles caracterized in that they have a narrow grain size distribution, a size comprised between 10 et 50 nanometres and present at their surfaces identical or different ionogenic or reactive groupings. It also relates to the method for the preparation and use of said polymer nanoparticles in the coating industry and in biology.
Patent CA-2124299-C (CA)
Inventor: RICHARDS PAUL NIGEL
IPC: G01F23/24
Filed: 1994-05-25
Granted: 2005-03-15
Abstract: Disclosed is a fluid level sensing system for sensing the level of the interface between a first fluid, e.g. water, and a second fluid, e.g. steam, the first fluid being beneath and of lower electrical impedance than the second fluid. The system comprises an electrically conductive vessel for containing the fluids and a plurality of vertically spaced sensors each of which has a sensing portion which projects into and is electrically insulated from the vessel and which is arranged, in use, to produce a signal representative of the impedance of the fluid between the sensing portion and the vessel. Output means are responsive to the impedance-representative signals for producing a first signal which is dependent upon the ratio between the impedance sensed by the sensor at or immediately below the interface and a value for the impedance of the first fluid derived from at least one sensor below the sensor at or immediately below the interface, and for combining the first signal with a second signal dependent upon the level of the sensor at or immediately below the interface so as to produce an output signal representative of the level of the interface within the vessel.
Patent CA-2125097-C (CA)
Title: Muffin mix
Inventor: POWELL DONALD JAMES
IPC: A21D13/068
Filed: 1994-06-03
Granted: 1998-08-04
Abstract: A low-fat muffin mix having excellent organoleptic characteristics and a non-chewy texture for muffins made thereof comprises:      20-98 wt.% of a soft, bleached flour; 1-4 wt.% of an instant starch; 0.5-5.0 wt.% of an emulsifier system, comprising monoglycerides, PGME, lecithin and SSL;      0.1-4.0 wt.% of a thermal gelling gum; 0.5-5.0 wt.% of a leavener; 0-50 wt.% of a sugar; 0-20 wt.% of a bran; 0-5 wt.% of a fat; 0-10 wt.% of another conventional ingredient.
Patent CA-2130749-C (CA)
Inventor: KLEPSCH LILIANA
IPC: B65D77/20
Filed: 1993-02-24
Granted: 2003-06-10
Abstract: A peelable, heat-sealable foil for closing con-tainers, for example cups, of synthetic plastics material, in particular polystyrene, consists of one single, biaxial-ly oriented layer of impact-resistant polystyrene, and in particular of impact-resistant polystyrene in admixture with a styrene-butadiene-double-blockcopolymer.
Patent CA-2132283-C (CA)
Inventor: KESHAVAN MADAPUSI K
IPC: E21B10/52
Filed: 1994-09-16
Granted: 2000-11-21
Abstract: A drill bit has means at one end for connecting the bit to a drill string and a plurality of inserts at the other end for crushing the rock to be drilled.  The inserts have a cemented tungsten carbide body partially embedded in the drill bit and at least two layers at the protruding drilling portion of the insert. The outermost layer contains polycrystalline diamond and particles of carbide or carbonitride of elements selected from the group consisting of W, Ti, Ta, Cr, Mo, Cb, V, Hf and Zr. The remaining layers adjacent the polycrystalline diamond layer are transition layers each comprising a composite containing diamond crystals, particles of tungsten carbide, and particles of titanium carbonitride. The average size of the diamond particles in the polycrystalline diamond layer is greater than the average size of the carbide or carbonitride particles; and the average size of the diamond particles in the transition layers is greater than the average sizes of the carbide and carbonitride particles. in particular, the transition layers contain particles of carbide and/or carbonitride with average grain sizes of less than one micrometer. The outermost layer of polycrystalline diamond extends along at least a portion of the length of the grip portion of the carbide body embedded in the drill bit.
Patent CA-2136787-C (CA)
Inventor: NIELSEN POUL E H
IPC: C07C11/02
Filed: 1994-11-28
Granted: 2002-06-25
Abstract: An improvement is provided in a process for the dehydration of a hydrocarbon feed stream. That process includes the steps of contacting the feed stream with a dehydrogenation catalyst in at least one dehydrogenation zone and reacting the feed stream to produce a hydrogen-containing effluent stream into the effluent stream. An oxygen-containing atmosphere is admixed in at least one mixing zone. Hydrogen is removed from the effluent stream by reaction with oxygen in the oxygen-containing atmosphere by contact with a hydrogen oxidation catalyst in at least one hydrogen removal zone. The improvement comprises employing unsupported forms of noble metals or alloys thereof as catalyst in the at least one hydrogen removal zone.
Patent CA-2137748-C (CA)
Title: Amidinophenylalanine derivatives, a process for their preparation, their use and compositions containing these as anticoagulants
Inventor: STUBER WERNER
IPC: A61K47/48
Filed: 1994-12-09
Granted: 2004-07-13
Abstract: The invention relates to amidinophenylalanine derivatives, to the synthesis of these compounds, to their use and to pharmaceutical compositions which contain these compounds which act as thrombin inhibitors.
Patent CA-2139290-C (CA)
Inventor: FOSTER LARRY
IPC: B60K15/067
Filed: 1994-12-29
Granted: 1998-04-14
Abstract: A cover for an elongated fuel tank support strap is disclosed in which the cover is positioned in between the strap and the fuel tank. The cover is formed from an elongated top wall of plastic having a top which faces the gas tank, a bottom which faces and overlies the support strap and two spaced apart side walls. Each side wall includes an inwardly facing channel which entraps and lockingly engages the opposite sides of the support strap. In addition, the top wall has two longitudinally extending and laterally adjacent sections which obliquely intersect each other at a peak. Depression of the peak varies the spacing between the channels so that the cover can accommodate tank straps which vary in width within preset limits.
Patent CA-2139666-C (CA)
Title: Nettoyeur liquide d'hygiene personnelle avec humidifiant
Inventor: DIAS LUIS C
IPC: A61K8/00
Filed: 1993-06-25
Granted: 1998-09-22
Abstract: Savon liquide doux très stable de type dispersoïde pour l'hygiène personnelle et composition hydratante constituée : A) d'environ 5 à environ 20 % en poids d'un savon de potassium d'acide gras à chaîne de type C8-C22; B) d'environ 0,1 à environ 7 % d'acide gras libre à chaîne de type C8-C22 ; C) d'environ 35 à environ 70 % d'eau et D) d'environ 8 à environ 35 % d'un polyol choisi parmi un groupe comprenant la glycérine, le glycérol, le propylèneglycol, des polypropylèneglycols, des polyéthylèneglycols, l'éthylhexanediol, des hexylèneglycols et d'autres alcools aliphatiques et mélanges de ceux-ci; E) d'environ 0,5 à environ 5 % de pétrolatum et F) d'environ 0,5 à environ 5 % d'ester glycolique choisi parmi un groupe comprenant des monoesters et des diesters glycoliques d'acides gras dont la longueur de chaîne est comprise entre environ 10 et environ 22, et des mélanges de ceux-ci.
Patent CA-2143953-C (CA)
Inventor: MEIER DIETRICH
IPC: H01S3/134
Filed: 1994-07-05
Granted: 2004-09-07
Abstract: A device for holding a cylindrical laser tube (3) in a stable radiation direction in the cylindrical internal space of a metallic housing (2), the internal space having a larger diameter than the laser tube (3) and O-rings (4) for mounting the laser tube (3) being fitted in the end regions of the internal space and the metallic housing (2) being mounted on a baseplate (1), characterized in that the interspace, enclosed by the O-rings, with respect to the laser tube (3) within the metallic housing (2) is filled with a thermally conducting paste (16), controllable heating and cooling elements are fitted in contact with the outer wall of the housing (2) and the housing (2) is mounted on the baseplate (1) in a fixed location only on one end.
Patent CA-2144831-C (CA)
Inventor: DE LANGE MARTIN KLAAS
IPC: H04L12/70
Filed: 1995-03-16
Granted: 1998-10-06
Abstract: The invention provides a device for encrypting or decrypting data packets, comprising storage means for temporarily storing data packets, identification means for identifying data packets, processing means for cryptographically processing data packets, and memory means for storing cryptographic information. Said processing means comprise, according to the invention, a firstand a second cryptographic element, said first cryptographic element being designed for generating, on the basis of a first starting value, processing data for cryptographically processing a data packet, and said second cryptographic element being designed for generating, on the basis of a second starting value, said first starting value. In addition, said processing means according to the invention are designed for forming, on the basis of a cryptographically processed data packet, said second starting value, thereby ensuring the synchronization between corresponding encrypting and decrypting devices.
Patent CA-2147341-C (CA)
Title: Skin treatment composition comprising l-lactic acid and n-acetyl-l-cysteine
Inventor: ZHANG KELLY HUA
IPC: A61K8/00
Filed: 1995-04-19
Granted: 2005-08-23
Abstract: Skin treatment compositions containing a system for enhancing sphingolipid production in skin containing N-acetyl-L-cysteine and L-lactic acid or a salt thereof.
Patent CA-2148273-C (CA)
Inventor: ARKAS EVANGELOS
IPC: H03M1/50
Filed: 1993-09-15
Granted: 2006-07-11
Abstract: An analogue to digital converter has an input for receiving an analogue signal and a frequency modulator for modulating the frequency of a carrier signal in dependance upon the analogue inpupt signal. A digital counter counts the time between successive events in the modulated signal to provide digital signals representative of the analogue input signal.
Patent CA-2150819-C (CA)
Title: Gradient directional microphone system and method therefor
Inventor: BRADLEY WAYNE HARL
IPC: H04R1/40
Filed: 1994-09-29
Granted: 1998-08-18
Abstract: A gradient directional microphone system (100) and method therefor includes three microphones (101, 103, 105) and a processor (107). Each of the three microphones (101, 103, 105) have substantially the same gradient order (135, 137, 139) and frequency response. Each microphone produces an electrical signal (109, 111, 113) that is responsive to sound pressure (119, 121, 123) at each microphone (101, 103, 105). The processor (107) is coupled to receive the electrical signal (109, 111, 113) from each microphone (101, 103, 105), and operative to produce an output signal (131) for the gradient directional microphone system (100) having a gradient order (141) at least two gradient orders higher than the gradient order (135, 137, 139) of each of the three microphones (101, 103, 105). Using the present invention, the size and complexity of the gradient directional microphone system (100) is substantially reduced over that of the prior art.
Patent CA-2151671-C (CA)
Title: Pulsed electronic article surveillance systems
Inventor: BALCH BRENT
IPC: G08B13/24
Filed: 1995-06-13
Granted: 2007-02-27
Abstract: An electronic article surveillance (EAS) system includes a transmitting antenna, a driver operable for exciting the transmitting antenna, a receiving antenna and circuitry connected to the receiving antenna for improving the quality of transmissions from the transmitting antenna. The driver excites the transmitting antenna at a preselected system operating frequency and the circuitry connected to the receiving antenna improves the quality of transmissions from the transmitting antenna by lessening harmonics of the operating frequency in the transmissions. The harmonics are attributable to protection diodes connected to the receiving antenna for limiting voltages impressed thereon and otherwise adversely impacting on the receiver tag signal processing circuitry. The harmonic lessening circuitry is connected in parallel with the protection diodes and is operative to lessen protection diode harmonic generation.
Patent CA-2155177-C (CA)
Inventor: LUM SANFORD S
IPC: G06T1/60
Filed: 1995-08-01
Granted: 2000-09-19
Abstract: A method of performing a bit block transfer (Bitblt) comprised of reading a pixel data sequence from a source trajectory, writing an X coordinate portion of the pixel data sequence to a destination trajectory, repeating the writing step to the end of a scan line in the event the X coordinate portion is smaller than the scan line, reset the X coordinate following the end of the scan line, reset a Y coordinate and write a successive X coordinate portion of the pixel data sequence to the destination register from an X coordinate start position when the Y coordinate actually advances in the pixel data sequence.
Patent CA-2161765-C (CA)
Title: Anti-foam device for a bioreactor
Inventor: RODICIO IGNACIO
IPC: B01D19/02
Filed: 1993-06-11
Granted: 2005-08-16
Abstract: An anti-foam device for a bioreactor (1, 2) is provided consisting of a perforated plate (8), made by hydrophobic material, which rotates at the surface (4) of the liquid culture medium (3) contained in the bioreactor vessel (1), said perforated plate (8) being perpendicular to (or having an inclination from 45.degree. to 90.degree. in respect of) the surface (4) of said culture medium (3) and partially immersed into said culture medium (3). On a preferred embodiment, said perforated plate (8), made of a silicone polymer, is held by a metal support (11); if a spinfilter (15) is provided i n said bioreactor (1, 2), said perforated plate (8) is divided in two separate equal sections (12) which are held by two metal supports (11) linked to said spinfilter (15) on the opposite sides thereof. Finally, said anti-foam device allows a significant improvement of the surface aeration rate of the liquid culture medium (3) by increasing the gas exchange rate at the gas/liquid interface (4).
Patent CA-2161832-C (CA)
Title: Forefoot relieving shoe, more particularly for postoperative treatment
Inventor: PRAHL JAN
IPC: A61F5/01
Filed: 1995-10-31
Granted: 2000-03-21
Abstract: For ensuring longer wear or utilization times without damage to the walking block, the sole portion (11) of the forefoot relieving shoe, more particularly for the postoperative treatment, with a different sole por-tion elasticity and with a sole portion (11) which is substantially triangular in a side view or in a vertical longitudinal cross-section and possessing a thickness which diminishes toward the rear and which terminates before the metatarsal region of the wearer, of a homo-geneous foamed plastic (19), wherein a spring (20,21) is embedded which can be tensioned against the pressure exerted by a foot on the shoe.
Patent CA-2162049-C (CA)
Inventor: RONNBERG PETER
IPC: A61F13/66
Filed: 1994-05-09
Granted: 2007-01-02
Abstract: The invention concerns a garment (1) comprising an absorbent section (2) and a waist belt (3) attached directly or indirectly thereto. The waist belt has two belt portions (7, 8) extending on either side of said absorbent section for securing to each other around a wearer of the garment. The particular handling characteristics of the belt parts of the waist belt (3) are significantly improved by manufacturing a belt stiffness of between 25g and 90g as measured by the modified version of test ASTM D 4032-82 CIRCULAR BEND   PROCEDURE.
Patent CA-2166110-C (CA)
Inventor: ALDER CHRISTOPHER JAMES
IPC: H01Q19/06
Filed: 1994-06-13
Granted: 2003-12-09
Abstract: A radiation sensor (10) for the  microwave and millimetre - wave regions incorporates a lens (12) having two parallel focal planes (26a, 36), these being defined by a polarization-selective reflecting PIN diode array (18) within the lens (12). One focal plane (26a) is occupied by a receive array of compressed dipole antennas which mixes receive signals and a local oscillator signal to produce intermediate polarization signals for subsequent processing. The second focal plane (36) is occupied by a transmit antenna array of separately activatable polarization switching antennas arranged to define a range of transmit beam directions. A second PIN diode array (20) protects the receive antenna array from the transmit beam.
Patent CA-2169993-C (CA)
Inventor: YODA SHIGEKI
IPC: G06F15/16
Filed: 1996-02-21
Granted: 1999-09-21
Abstract: A data transfer control device comprising an instruction decoding unit for receiving an transfer instruction from an arithmetic processing unit provided in the cluster and decoding the content thereof, some instruction storage units for storing the transfer instruction, a shared memory access unit for reading and writing the data through access to the shared memory provided in the cluster, a data transfer unit for delivering the data read out by the shared memory access unit to the network among clusters, as well as delivering the received data through the network among clusters to the shared memory access unit, and a transfer control unit for controlling the shared memory access control unit and the data transfer unit according to the transfer instruction which is read out from the instruction storage unit, wherein the instruction decoding unit classifies the transfer instruction into an urgent transfer instruction or a non-urgent transfer instruction on the basis of the decoded result thereof, so to store it into one of the instruction storage unit separately, and the transfer control unit reads out the transfer instruction preferentially from the instruction storage unit which stores the urgent transfer instruction.
Patent CA-2174260-C (CA)
Title: Key agreement and transport protocol
Inventor: VANSTONE SCOTT
IPC: H04L9/08
Filed: 1996-04-16
Granted: 2007-06-19
Abstract: A key establishment protocol includes the generation of a value of cryptographic function, typically a hash, of a session key and public information. This value is transferred between correspondents together with the information necessary to generate the session key. Provided the session key has not been compromised, the value of the cryptographic function will be the same at each of the correspondents. The value of the cryptographic function cannot be compromised or modified without access to the session key.
Patent CA-2178146-C (CA)
Inventor: ZITKO MARK W
IPC: C23C18/36
Filed: 1996-06-04
Granted: 2002-01-15
Abstract: A process is provided for enhancing the wear resistance of aluminum and other materials by depositing on the substrate a nickel, cobalt, phosphorous alloy coating using an electroless plating bath to provide a plated alloy having a cobalt content of at least about 20 % by weight and a %Co/%P weight ratio of at least about 5. A preferred bath contains an effective amount of glycolic acid or saltsthereof. The alloy deposit is preferably plated over a zincated aluminum substrate.
Patent CA-2179003-C (CA)
Inventor: STIRLING ALBERT
IPC: H01R24/40
Filed: 1996-06-12
Granted: 2002-08-27
Abstract: An electrical coupling is provided for connecting two coaxial cable housings. The coupling has male and female components which have mating tapered surfaces, such as conical surfaces. Screwing the male and female components together wedges the conical surfaces tightly so that the coupling is resistant to torsional forces that could otherwise cause rotational displacement of the components and lead to unscrewing of the coupling.
Patent CA-2182453-C (CA)
Title: Process for recovery of hydrocarbon products from oil sands
Inventor: GALACHIUK PAUL
IPC: C10G1/04
Filed: 1996-07-31
Granted: 2000-12-12
Abstract: Disclosed is an improved process relating to the extraction of bitumen and lighter hydrocarbon compounds from oil samds, wherein the extracted is distilled in a vacuum distillation unit from which the light hydrocarbon products, such as kerosene and gas oil are recovered and wherein the bitumen bottoms are sent to a coking unit.
Patent CA-2184848-C (CA)
Title: Flocked fabric with water resistant film
IPC: D06P7/00
Filed: 1996-09-05
Granted: 1999-03-09
Abstract: A fabric used as outerwear having a stabilized substrate, an adhesive and flock adhered to the substrate with the adhesive. The adhesive is dried and cured, preferably aerated. A waterproof film may be applied either to the substrate or to a lining adjacent the substrate. The flock may be flattened into a laid down condition.
Patent CA-2188837-C (CA)
Inventor: STEADMAN CLAY
IPC: A47L13/18
Filed: 1996-10-25
Granted: 1998-07-28
Abstract: There is provided a mitt for use in cleaning and polishing. The mitt comprises a first and second portion, oppositely facing, peripheral edges stitched together except for an opening for inserting a user's hand, a thumb receptacle extending from the first and second portions, a forefinger receptacle extending from the first and second portions and having an aperture at an end remote from the first and second portions, the aperture of a size to permit passage of the forefinger therethrough and a receptacle for the remaining fingers extending from the first and second portions. The mitt is constructed so as to be suitable for use on either hand.
Patent CA-2190653-C (CA)
Title: Procede pour la production de produits mineraux a contenus calorifiques importants a partir de dechets et produits en resultant
Inventor: BEAUVENT GUY
IPC: C04B7/24
Filed: 1996-11-18
Granted: 2005-04-12
Abstract: Procédé pour la production de produits minéraux à contenu calorifique important à partir de déchets et produits en résultant, caractérisé en ce qu'on soumet des boues à un malaxage d'homogénéisation, en ce qu'on réalise un mélange stoechiométrique au moins de CaCO3, d'argile et de SiO2, en ce qu'on fait circuler le mélange stoechiométrique réalisé dans au moins un four de chauffage et de calcination, en ce qu'on sépare, en partie au moins, la chaux produite à la température de décarbonatation du CaCO3 et en ce qu'on élève la température au moins jusqu'à obtention de (CaO)2 (SiO2).beta. à propriétés hydrauliques et à forme cristallisée.
Patent CA-2199788-C (CA)
Title: Method of purifying copper electrolytic solution
Inventor: ISHII TOSHINORI
IPC: C25C7/06
Filed: 1997-03-12
Granted: 2005-07-05
Abstract: A method of purifying copper electrolytic solution being circulated in a copper electrorefining system wherein a portion of the solution is withdrawn and is recycled to the system after purification treatment in which hydrosulfide is added to the solution withdrawn to generate only the necessary quantity of hydrogen sulfide gas on the spot and the hydrogen sulfide gas generated is utilized for purification treatment. One process comprises dividing the solution withdrawn into two portions, adding sodium hydrosulfide to the first portion to precipitate and separate metals as sulfides from the first portion, further adding excess sodium hydrosulfide to the first portion for reaction with residual sulfuric acid in the solution to generate hydrogen sulfide gas, contacting the second divided portion with the hydrogen sulfide gas thus produced to precipitate and separate metals in the form of sulfides, and recycling the filtrate to an electrorefining system. There is also provided a process comprising contacting the solution with hydrogen sulfide gas to separate and remove Cu, As, Sb and Bi in the form of sulfides from the solution, dividing the solution into two portions, wherein the first portion is recycled to the electrorefining system, whereas excess sodium hydrosulfide is added to the second portion to separate and recover Ni as nickel sulfide from the solution, while resulting hydrogen sulfide gas is used for contact with solution to be treated.