baber/WOPTO huggingface dataset:
Patent CA-2269177-A1 (CA)
Title: Hydraulic elevator with plunger brakes
Inventor: SEGGEBRUCH ERNIE
IPC: F16D65/22
Filed: 1999-04-23
Abstract: A brake for a plunger of a hydraulic elevator is provided which in a preferred embodiment includes a pressure plate, a first brake ring, a wedge plate, a biasing spring and a fluid release actuator. The pressure plate is movable along an axis generally parallel with the axis of the plunger. The first brake ring encircles the plunger and has an inner surface for engagement with the plunger. The fast brake ring also has a second surface for force engagement with the pressure plate. The first brake ring additionally has an outer wedge surface. The first wedge plate has a first wedge surface for engagement with the wedge surface of the first brake ring. The spring biases the pressure plate and wedge plate toward one another. The fluid release actuator urges the pressure plate away from the wedge plate.  Upon release of the actuator relative movement of the pressure plate towards the first wedge plate causes the brake ring to circumferentially grip the plunger and prevent movement axial of the plunger.
Patent CA-2269710-A1 (CA)
Title: Dual pump gravity separation system
Inventor: COLLINS RODNEY DOUGLAS GREY
IPC: E21B41/00
Filed: 1999-04-22
Abstract: A system of reciprocating bottom hole sucker rod pumps, situated in an oil well, to produce an oil rich stream to surface and inject a water stream to a same wellbore disposal zone. Two pumps vertically in tandem are actuated by a single sucker rod string. Separate intakes for each pump are situated so as to allow for gravity to segregate oil and water in the wellbore before reaching the intakes. Both streams are produced out of the pumps on the upstroke. Injection of the water stream is facilitated by an outer housing around the bottom pump to redirect flow to a disposal zone.
Patent CA-2270004-A1 (CA)
Title: Stable mitoxantrone solutions
Inventor: WOLF-HEUSS ELISABETH
IPC: A61K47/18
Filed: 1999-04-26
Abstract: An aqueous solution of from about 1 mg/ml to about 5 mg/ml mitoxantrone.HCl, from about 0.01% wt. to about 0.15% wt. based on the solution of sodium edetate, sodium chloride, sodium acetate, and acetic acid, and a process for preparing the same.
Patent CA-2270107-A1 (CA)
Inventor: PELLETIER SYLVAIN
IPC: B22F1/10
Filed: 1999-04-27
Abstract: Complexable polymeric binder-lubricant blends are disclosed for production by powder metallurgy techniques of ferrous compositions with remarkably high green strength upon compaction, or soft magnetic ferrous powder/resin composites with improved processability and magnetic properties. An exemplary composition consists of a ferrous powder, a thermoset phenolic resin and poly(ethylene oxide), both polymers exhibiting, when intimately mixed, strong intermolecular acid-base interactions giving rise to an interpolymer complex which imparts a high strength to the resulting ferrous powder compact.
Patent CA-2270486-A1 (CA)
Inventor: FLEMING WILLIAM L
IPC: A01K97/04
Filed: 1999-04-23
Abstract: "The Worm Bag" is a system that consists of three important elements a) a cloth bag of various strongly woven fabrics with good porosity such as denim or canvass b) "The Worm Bag" contains a prepackage amount of sphagnum moss for worm bedding which to keep the worms moist and healthy c) "The Worm Bag" also has instructions provided. The bag and string may be of multiple colors.  Suitable dimensions for the bag would vary from 11 cm upward to 61 cm wide by 11cm to 61cm long. The most typical dimension would be 20cm wide by 28cm long. The typical bag contains two drawstrings measuring about 99cm long. The bag is sewn at each side with an opening at the top of the bag. The top of the bag has a 2.5 cm hem in which one of the string is threaded from one side right around to meet where you started. A knot is then tied at the end with both of these strings. Starting from the opposite side, the other string is threaded in the same fashion, then tied together in a knot. When both string are pulled upon, the opening of the bag will close. This ensures that the worms contained do not escape. On a bag measuring 20cm wide by 28cm long a logo measuring 5.5 cm2 is sewn. The logo would be centered on the vertical axis and approximately of the way down from the top of the bag.
Patent CA-2273210-A1 (CA)
Title: Class d amplifier
Inventor: BACKRAM HANS-ERIK
IPC: H03F3/217
Filed: 1996-12-11
Abstract: The invention concerns a class D amplifier in which a high-frequency reference signal (E) is pulse width modulated by an input signal, such as an audio signal, and in which there are generated a pair of bipolar pulse drive signals (I, J), comprising an error generator which forms a signal with an average value which corresponds to the DC  component of the pulse drive signals, and which is fed back to the pulse width modulator for the adjustment of the modulator. The high-frequency reference signal (E) is generated from a first clock signal (A), and the individual pulses of the respective pulse drive signals are controlled via a second clock signal (C) which is derived from the first clock signal (A).
Patent CA-2274470-A1 (CA)
Title: Method of forming and piercing a tube
Inventor: ASH STANLEY P
IPC: B21D26/02
Filed: 1997-07-09
Abstract: A metal tube is cold formed into a stamped member by filling the tube with a liquid change-of-state material, freezing the change-of-state material, sealing the tube containing the solid change-of-state material, and stamping the tube in a die. The change-of-state material compresses during the stamping step to force the walls of the tube to conform to the die cavity, eliminating the need to pressurize the tube prior or subsequent to stamping. Additionally, the solid within the tube provides support to the wall of the tube during a piercing step to form a hole in the tube having less deformation surrounding the hole than a comparative tube pierced without having the solid fill. After the stamping or piercing steps, the change-of-state material is melted and drained from the tube. Further, a tube is pierced by forming an outwardly bulged area and piercing the tube in the outwardly bulged area while simultaneously depressing the tube to substantially flatten the outwardly bulged area.
Patent CA-2274490-A1 (CA)
Title: Non-m non-o hiv strains, fragments and applications
Inventor: BARRE-SINOUSSI FRANCOISE
IPC: C12N15/49
Filed: 1997-12-08
Abstract: Retroviral strains of the non-M, non-O HIV-1 group, in particular a strain designated YBF30, its fragments and also its uses as a diagnostic reagent and as an immunogenic agent. The HIV-1 viruses which differ both from the M group and the O group exhibit the following characteristics: little or no serological reactivity with regard to the proteins of the M and O groups and strong serological reactivity with regard to the proteins which are derived from the strain YBF30 according to the invention or the strain CPZGAB SIV; absence of genomic amplification when using primers from the env and gag regions of the M and O HIV-1 groups; genomic amplification in the presence of primers which are derived from the YBF30 strain according to the invention; and homology of the products of the envelope gene which is greater than 70% with regard to the YBF30 strain.
Patent CA-2274853-A1 (CA)
Title: Multiple branch peptide constructions
Inventor: MABROUK KAMEL
IPC: A61K38/00
Filed: 1997-12-30
Abstract: Multiple branch peptide constructions formed from peptides derived from the envelope transmembrane glycoprotein gp41 of HIV, and including the consensus sequence RQGY preceded by 0 to 4 amino acid residues and succeeded by 2 to 4 amino acid residues, most preferably RQGYSPL, show increased receptor affinity and prevent cell-to-cell fusion. They have a direct virostatic effect. Because they present the same peptide sequence several times, these MBPCs are able to neutralize in vitro the different steps of virus envelope/cell membrane fusion, and infected cell membrane/uninfected cell membrane fusion of several strains of HIV-1 and HIV-2. These results open a potential use in treatment of HIV infection.
Patent CA-2275426-A1 (CA)
Inventor: CARLSSON LENNART
IPC: A61C1/18
Filed: 1997-12-15
Abstract: L'invention concerne un instrument chirurgical (12) comprenant un outil permettant de visser un implant chirurgical ou de réaliser un filetage dans un tissu osseux humain au moyen d'un taraud. Cet instrument comprend également une unité (2) intégrée à l'outil et destinée à alimenter en courant un moteur électrique, par exemple, un moteur C.C. (1), et à contrôler la vitesse de ce dernier. Des éléments de détection (7,8) transmettent des signaux (i1) qui sont fonction du couple de l'outil, à des éléments d'affichage comprenant une unité informatique (9) équipée d'un écran (10). A l'écran s'affiche une courbe représentant le couple en fonction de l'angle de rotation. Sur la base de cette ou de ces courbe(s), on peut évaluer la qualité de l'implant ou du tissu osseux.
Patent CA-2276095-A1 (CA)
Inventor: EDWARDS ROBERT E JR
IPC: D21F1/48
Filed: 1999-06-22
Abstract: An automatic control system for a papermaking machine having a plurality of variable dewatering devices with moveable elements which engage the conveyor carrying the paper stock and are adjusted by electrical operating devices, such as servo motors or solenoid valves, to vary their water removal rate in response to control signals produced by a computer controller. A plurality of sensors are spaced along the path of the paper sheet downstream from the variable dewatering devices to sense the paper sheet characteristics including light transparency and mass, and to apply sensor output signals corresponding thereto to the computer controller. The servo motors have their shafts coupled to adjustment devices for cam mechanisms which adjust the moveable elements of the variable dewatering elements. The variable dewatering elements include a variable angle foil, a variable height blade, a variable width slot Uhle box, and a variable width pickup device, whose moveable elements are adjusted to change their water removal rates. Shaft position encoders on the servo motors or other operating devices produce feedback position signal which are applied to inputs of the computer controller to indicate when the moveable elements reach their desired adjustment positions.
Patent CA-2278054-A1 (CA)
Title: Shoe using a moulded bottom provided with a series of slots for the application of a strap-type closed upper
Inventor: VECCHIOLA ANDREA
IPC: A43C11/02
Filed: 1999-07-19
Abstract: The present invention relates to shoe using a moulded bottom provided with a series of slots on the edges, or with through openings, on the sole, for the application of a closed upper, made up of a fabric or leather strap that embraces the back and the neck of the foot.
Patent CA-2279299-A1 (CA)
Title: Thermal waterless lithographic printing plates
Inventor: NGUYEN MY T
IPC: B41N1/00
Filed: 1999-07-29
Abstract: The invention relates to thermal waterless lithographic printing plates comprising layers of inherent near infrared absorbing polymers for computer- to-plate and digital-offset-press technologies. More specially, this invention relates to thermal waterless lithographic printing plates, which can be imaged with near infrared laser light and which do not require post chemical processing step. More particularly, the present invention provides a thermal waterless printing plate suitable for near infrared laser imaging, said printing plate comprising: (i) a support substrate, and (ii) a composite top layer consisting of: (a) a near infrared absorbing adhesion promoting layer applied to the support substrate and (b) a near infrared absorbing ink repelling cross-linked silicone polymer layer.
Patent CA-2279706-A1 (CA)
Title: One play video cassette
Inventor: GELARDI PAUL J
IPC: G11B23/087
Filed: 1999-08-06
Abstract: Tape partially curves around a one-way tape brake for a cassette. The brake has a cylindrical roller with a side extension. When the tape advances, a smooth cylindrical side of the roller allows tape forward movement. when the tape tends to reverse the tape pulls a friction surface rearward, turning the roller and fractionally engaging the tape and pinching it against a tape guide. Rearward tape motion is prevented.
Patent CA-2280868-A1 (CA)
Title: Pince pour accessoires de maquillage
Inventor: COOPER GARY
IPC: A45D40/18
Filed: 1998-02-18
Abstract: Une attache (1) pour accessoires de maquillage comprend au moins deux pinces (4, 5) destinées à retenir des articles (2, 3) s'étendant dans le sens longitudinal, un crayon (3) par exemple. L'attache (1) comprend au moins deux pinces ouvertes (4, 5) telles qu'une pince ouverte (4) à la partie fermée de laquelle est attachée une pince (5) plus petite adjacente à la pince (4) plus grande. Le cylindre (2) plus grand du rouge à lèvres est inséré par l'action de ressort de la grande pince (4) et le crayon à lèvres (3) est insérable dans la petite pince (5) située à côté de la grande pince (4). Cette attache (1) peut retenir d'autres articles du même type qui s'étendent longitudinalement tels que des crayons à sourcils et autres.
Patent CA-2281153-A1 (CA)
Inventor: LUMMEL DIETER
IPC: G01N27/24
Filed: 1999-08-30
Abstract: A method for the continuous monitoring of the coating of a yarnlike dielectric material with assistants comprises applying a solution of said assistants dissolved in a polar solvent to said yarnlike material, then passing said yarnlike material between the electrodes of a downline capacitive measuring element, determining the capacity changes of said downline capacitive measuring element, and using said capacity changes to calculate the unevenness of the layer thickness of the applied solution.
Patent CA-2281921-A1 (CA)
Inventor: NGUYEN DAVID D
IPC: B24D11/00
Filed: 1998-01-28
Abstract: An abrasive article is provided which comprises a backing; and at least one three-dimensional abrasive coating comprising diamond particles dispersed within a binder bonded to a surface of the backing, the binder comprising a cured binder precursor including a urethane acrylate oligomer. The abrasive article is capable of rapid glass stock removal coupled with reducing the surface finish as indicated by reduced Ra values using an RPP test procedure.
Patent CA-2282960-A1 (CA)
Title: Carbon monoxide reducing device and carbon monoxide reducing method
Inventor: NAGAMIYA KIYOMI
IPC: C01B3/58
Filed: 1999-09-16
Abstract: A carbon monoxide reducing device supplies oxygen to a reformate gas obtained through a reforming reaction so as to oxidize carbon monoxide contained in the reformate gas by means of the oxygen and thereby reduces a concentration of carbon monoxide contained in the reformate gas. This carbon monoxide reducing device is equipped with an oxygen supply amount controller designed to oxidize CO. The oxygen supply amount controller controls an amount of oxygen supplied to oxidize carbon monoxide contained in the reformate gas based on an amount of supply of fuel contributing to the reforming reaction. Thereby, the amount of oxygen for oxidizing carbon monoxide contained in the reformate gas is adjusted appropriately, and a high-quality reformate gas can be obtained.
Patent CA-2286596-A1 (CA)
Inventor: MITTS HAKAN
IPC: H04L12/56
Filed: 1998-04-09
Abstract: L'invention se rapporte à un réseau par paquets en mode connexion qui comprend des groupes d'homologues, disposés de manière hiérarchique (1, 2, 3), et au moins une base de données initiale; les informations sur une position temporaire dans la base de données initiale comprennent une adresse d'un groupe d'homologues dans lequel un terminal mobile ou un abonné mobile a été enregistré dernièrement. Un message d'initialisation est acheminé vers un groupe d'homologues de destination conformément aux informations sur la position temporaire. Chaque membre faisant partie d'un groupe d'homologues possède des informations pour acheminer le message d'initialisation vers un terminal mobile à l'intérieur du groupe d'homologues.
Patent CA-2287907-A1 (CA)
Title: Novel orally active iron (iii) chelators
Inventor: HIDER ROBERT CHARLES
IPC: A61P7/06
Filed: 1998-05-26
Abstract: A novel 3-hydroxypyridin-4-one compound of formula (I) is provided, wherein R is hydrogen or a group that is removed by metabolism in vivo to provide the free hydroxy compound, R1 is an aliphatic hydrocarbon group or an aliphatic hydrocarbon group substituted by a hydroxy group or a carboxylic acid ester, sulpho acid ester or a C1-6alkoxy, C6-aryloxy or C7-10aralkoxy ether thereof, R3 is selected from hydrogen and C1-6alkyl; and R4 is selected from hydrogen and C1-6alkyl, C1-6alkyl and a group as described for R2;  characterised in that R2 is selected from groups (i) -CONH-R5, (ii) -CH2NHCO-R5, (iii) -SO2NH-R5, (iv) -CH2NHSO2-R5, (v) -CR6R6OR7, (viii) -CONHCOR5, wherein R5 is selected from hydrogen and optionally hydroxy, alkoxy, or aralkoxy substituted C1-13alkyl, aryl and C7-13aralkyl, R6 is independently selected from hydrogen, C1-13alkyl, aryl and C7-13aralkyl, and R7 is selected from hydrogen, C1-13alkyl, aryl and C7-13aralkyl or a pharmaceutically acceptable salt of any such compound with the proviso that when R7 is hydrogen, R6 is not selected from aryl and with the proviso that the compound is not 1-ethyl-2-(1'-hydroxyethyl)-3-hydroxypyridin-4-one.
Patent CA-2288222-A1 (CA)
Inventor: ZHAO QIUYAN
IPC: A61P35/00
Filed: 1998-04-30
Abstract: Nouvelles méthodes permettant de moduler des cytokines spécifiques induisant l'immunité à médiation cellulaire in vivo. Ces nouvelles méthodes entraînent la stimulation des cytokines IL-6, IL-12, MIP-1.beta. et MCP, sans induire de cytokines non désirées. Les méthodes selon la présente invention sont fondées sur l'administration d'oligonucléotides contenant des motifs structuraux particuliers qui conduisent à une induction spécifique des cytokines.
Patent CA-2289487-A1 (CA)
Inventor: YAN ZHEN GUO
IPC: A61H39/08
Filed: 1998-05-12
Abstract: Intramuscular stimulation (IMS) pain relief therapy is facilitated by a hand held tool (1) which once positioned against a patient's skin can be controlled to automatically advance a needle (11) to penetrate the patient's flesh, reciprocate the needle (11) within the patient's flesh a predetermined number of times through a predetermined stroke, and retract the needle (11). A tubular guide member (13) is provided at its distal end with a skin contact member (15) forming a constricted orifice closely matching the diameter of the needle (11). The orifice allows substantially free passage of the needle (11) therethrough, and at the same time prevents bowing of the needle (11) as it is advanced, which is a primary source of patient pain. Automation and control of the needle penetration; reciprocation and retraction sequence reduces the amount of manual, and mental effort required on the part of the treating physician, thereby allowing physicians to perform IMS procedures more consistently effectively and efficiently. This leads to better results (increased pain relief); decreased procedure induced patient pain and tissue trauma; and reduced risk of repetitive strain injury to the treating physician.
Patent CA-2291789-A1 (CA)
Title: Puce a chemin de donnees et processeur integres pour calcul reconfigurable
Inventor: PHILLIPS CHRISTOPHER E
IPC: G06F15/78
Filed: 1998-06-29
Abstract: L'invention concerne de manière générale une solution de calcul reconfigurable qui présente la souplesse du développement de logiciel et l'efficacité des solutions matérielles spécialisées. Une puce microprocesseur reconfigurable comprend un processeur standard, des blocs de logique reconfigurable (1101, 1103) et des interfaces (319a, 319b, 311) entre ces éléments. La puce permet la recompilation d'un code d'application sous forme de blocs logiciels et matériels rechargeables, à l'aide d'outils logiciels correspondants. Un mélange de cellules arithmétiques et de cellules logiques permet une utilisation plus efficace du silicium qu'une interconnexion standard. Une utilisation plus efficace de la mémoire de configuration à plaques superposées est assurée, grâce au fait que les différentes sections du code converti nécessitent différentes parties des fonctions ALU et une interconnexion par bus. Sont également décrites, plusieurs types d'interfaces dotées du processeur intégré, permettant l'interface rapide entre un code de processeur standard et des fonctions configurables "câblées".
Patent CA-2292654-A1 (CA)
Title: Cross-linked nylon block copolymers
Inventor: O'NEIL CHARLES J
IPC: A61F2/958
Filed: 1998-05-06
Abstract: A cross-linked nylon block copolymer comprising a copolymer containing a polyamide block and an elastomeric block, irradiation cross-linked, including a compound which promotes cross-linking therein. In process form, the present invention comprises supplying a nylon block copolymer, containing a polyamide block and an elastomeric block, along with cross-linking promotor and exposing the block copolymer to irradiation, sufficient to cross-link the copolymer and improve mechanical properties therein. The cross-linked nylon block copolymers here have particular utility in both the medical and wire and cable industries.
Patent CA-2293655-A1 (CA)
Inventor: MARSHALL HOWARD B
IPC: A61C13/275
Filed: 1998-06-18
Abstract: This invention is a dental prosthesis for replacing a tooth or teeth in a patient's mouth either adjacent to existing teeth or between a first tooth anterior and a second tooth posterior of the edentulous space. The dental prosthesis includes a multi-section infrastructure (10) with a main supporting bar (11), a secondary support section (15) comprised of buccal buttress (16), and lingual buttress (17) received in grooves (18, 19), respectively.      The secondary support acts to prevent or limit rotation of the pontic around the longitudinal axis of the main support bar (11). Additionally, a method for replacing a tooth or teeth in an edentulous space either adjacent to existing teeth or between a first tooth anterior of the second tooth posterior of the edentulous space, and a method for forming an improved dental prosthesis for such edentulous space in situ in the patient's mouth.
Patent CA-2294370-A1 (CA)
Title: Preparation d'un support d'enregistrement
Inventor: CHOLOD MICHAEL STEFAN
IPC: G11B7/2533
Filed: 1998-06-15
Abstract: L'invention concerne un procédé de préparation de disques moulés, conçus pour servir de supports d'enregistrement d'informations optiques, de même que les supports d'enregistrement ainsi obtenus. Ce procédé consiste à plastifier un homopolymère ou un copolymère de méthacrylate de méthyle, à injecter l'homopolymère ou copolymère plastifié dans un moule, afin de former un disque, et à enlever le disque moulé, dans un temps de cycle très court. On peut ainsi obtenir des disques de bonne qualité qui sont notamment conçus pour servir de supports d'enregistrement d'informations optiques.
Patent CA-2294951-A1 (CA)
Title: Reduction of unwanted side-effects during use of absorbent articles by means of ph-control
Inventor: FORSGREN-BRUSK ULLA
IPC: A61F13/472
Filed: 1998-06-10
Abstract: The present invention relates to absorbent articles such as diapers, incontinence protectors, sanitary napkins, wound dressings and similar articles which are applied in contact with skin, and concerns methods which make it possible to use an article for an extended period of time without the appearance of unwanted side-effects such as, for instance, growth of undesirable micro-organisms. The absorbent body in the absorbent article comprises a pH-controlling substance in the form of a partially neutralised super-absorbent material in such a manner that the pH in the absorbent article after wetting is in the interval 3.5 - 4.9. Growth of undesirable strains of micro-organisms is prevented and unwanted side-effects resulting from use of the article are reduced.