baber/WOPTO huggingface dataset:
Patent CA-2186393-A1 (CA)
Title: Resilient inlaid products and methods for making such products
Inventor: PIACENTE ANTHONY N
IPC: D06N7/00
Filed: 1995-04-05
Abstract: Disclosed are products and processes which utilize a reactive matrix (70) containing decorative elements to form the wear layer of a resilient, inlaid flooring product. The inlaid layer of the preferred floor covering products comprises an intelpenetrat-ing polymer network and a plurality of decorative elements at least partially embedded in the interpen-etrating polymer network. The method aspects of the invention include consolidating the matrix (70) by exposure to elevated pressure and initiating poly-merization of the reactive components in the matrix during the consolidation step.
Patent CA-2189117-A1 (CA)
Title: Method and apparatus of maintaining an open communications channel between a cellular terminal and an associated cellular radio network
Inventor: AHLBERG BJOERN G D
IPC: H04B7/26
Filed: 1995-04-26
Abstract: A cellular radio communications system includes a cellular radio network for establishing communications, via a communications link, with a cellular terminal and open communications link maintaining means for maintaining the communications link in an open state for a predetermined time period following termination of the communications with the cellular terminal.  Accordingly, the user of the cellular terminal may continue to access the cellular radio network within the predetermined time period via the open communications link.  The cellular radio communications system may also include a feature node for providing predetermined functions to the cellular terminals associated with the cellular radio network.  The open communications link maintaining means typically includes a timer and related controller for initiating and monitoring the predetermined time period.  In addition, either the cellular terminals, themselves, or a feature node associated with the cellular radio network may include the communications link maintaining means.
Patent CA-2189437-A1 (CA)
Inventor: GRABSCHEID JOACHIM
IPC: F16C13/02
Filed: 1995-05-16
Abstract: Une presse de séchage de bandes de papier comprend deux rouleaux de compression (14, 16) qui forment une emprise de compression (12). Le premier rouleau de compression (14) est fixé dans le sens axial au moins à une extrémité et soutenu par ses tourillons (53) sur des premiers paliers (19). Le deuxième rouleau de compression (16) est soutenu lui aussi par ses tourillons (55) sur des deuxièmes paliers (21a). Les deuxièmes paliers (21) peuvent être serrés en paires par des éléments élastiques flexibles de traction (26) par rapport aux premiers paliers (19). Les éléments de traction (26) permettent un déplacement relatif des rouleaux de compression (14, 16) dans le sens axial. Les deuxièmes paliers (21a) sont fixés en position par rapport aux premiers paliers (19) afin d'éviter une sollicitation excessive à la flexion des éléments de traction (26). A cet effet, les paliers rotatifs (25a) du deuxième rouleau de compression (16) sont fixés de manière à ne pas basculer ou des paliers supplémentaires de support (27a) sont prévus.
Patent CA-2189761-A1 (CA)
Title: Dna encoding the beta subunit of a mammalian "maxi-k" potassium channel
Inventor: KACZOROWSKI GREGORY J
IPC: C12N15/12
Filed: 1995-05-09
Abstract: This invention relates to heteromultimer and its use in screening pharmaceutically active compounds for modulators of maxi-K channel activity. Such modulators are useful in treating asthma, pregnant human myometrium, hypertension and angina, cerebral ischemia and in conditions where stimulation of neurotransmitter release is desired such as Alzheimer's disease and stimulation of damaged nerves.
Patent CA-2197077-A1 (CA)
Title: Lateral member assembly for underdrain lateral system
Inventor: EISCHEN FREDERICK W
IPC: B01D24/42
Filed: 1996-06-14
Abstract: Lateral member assembly (10) for use in an underdrain lateral distribution system is made of plastics but is as capable as much heavier and more costly metallic assemblies in supporting a bed of filter media which must be periodically backwashed with liquid and gas. Complementary elements, including a rigid extended floor plate member (22) having longitudinally extending side edge channels (40), and an overlying screen member (20) having flange portions (38) adapted to be retained by undercut recesses in the side edge channels, are assembled to each other to form hollow lateral assemblies. In one embodiment, the screen member is telescopically assembled to the floor plate member to cause the screen flange portions to interlock with the recesses in the side edge channels. The resulting assembly is sealed against leakage where the members are interlocked by a pair of flexible, integral plastic sealing strips (70, 72) which are co-extruded with the rigid floor plate member.
Patent CA-2198110-A1 (CA)
Title: Methode et appareil d'authentification pour systeme de communication
Inventor: DUDA MICHAEL C
IPC: H04L9/08
Filed: 1996-05-02
Abstract: L'invention concerne un procédé et appareil pour effectuer une authentification dans un système de communication. Le procédé consiste à détecter un message d'authentification non attendu, remettre à jour une contre-valeur, comparer la contre-valeur à une valeur de seuil et effectuer une opération de remise à jour de la clé de cryptage en réponse à la comparaison entre la contre-valeur et la valeur de seuil. L'appareil comprend un poste de base (152), un centre de commutation (128) couplé au poste de base (152) et un centre d'authentification (149) réagissant au centre de commutation (128). Le centre de commutation (128) détecte un message d'authentification non attendu reçu par le poste de base (152). Le centre d'authentification (149) remet à jour un compteur quand le centre de commutation (128) détecte le message d'authentification non attendu et compare le compteur remis à jour avec la valeur de seuil. Le centre d'authentification (149) initie une opération de remise à jour de la clé de cryptage quand la contre-valeur du compteur dépasse la valeur de seuil.
Patent CA-2200203-A1 (CA)
Inventor: CAPPA GUIDO GUSTAAF ANTOON
IPC: G01N27/407
Filed: 1996-06-28
Abstract: The invention relates to a sensor for measuring gas concentrations in a gas mixture, with a tube closed at one end, along the outside of which is fitted an electric sensor contact and the open end of which is fitted in a housing, where the space along the tube between it and the housing is gastightly sealed. In order to ensure a reliable seal between the gas to be measured and the reference gas, even at high operating temperatures, and at the same time to provide several sensor funtions with high contact reliability, there are a gastight seal running peripherally between the housing and the tube at the open end of the tube forming a cold end and at least one electric sensor contact electrically insulated from the housing on the outside of the tube, and the at least one sensor contact opens into the open end of the tube and is connected to an electric line.
Patent CA-2201096-A1 (CA)
Inventor: ISHIKAWA YASUHIRO
IPC: C07D473/06
Filed: 1996-06-07
Abstract: The present invention relates to a solid dispersion and a solid dispersion dosage form which comprise a xanthine derivative represented by the following formula (I) or a pharmacologically allowable salt thereof and a polymer. (see formula I) (In the above formula, R1 and R2 are the same or different, and represent substituted or unsubstituted lower alkyl groups, and Q represents a hydrogen atom or a hydroxyl group.)
Patent CA-2201954-A1 (CA)
Title: Rotating piston for sucker rod pump
Inventor: SNOW JERRY M
IPC: F04B47/00
Filed: 1997-04-04
Abstract: A downhole sucker rod pump especially well adapted for use in pumping thick oils and oils containing particles of sand or rock includes helical grooves or apertures for producing an intermittent unidirectional rotation of the plunger without appreciably restricting the flow of oil through the pump. This rotation distributes wear more uniformly around the plunger. In a first embodiment, helical apertures are provided in the cage portion at the upper end of the plunger. Because of their large axial extent, these apertures collectively provide an outlet of large area for the oil, and thus restrict the flow only slightly. Because of their inclination these apertures produce a torque on the cage and plunger. In a second embodiment, a second plunger is attached to the upper end of the cage. The second plunger includes helical grooves in its cylindrical outer surface. The lower portion of the cage is provided with apertures that permit the oil to flow from the interior of the cage into a space between the cage and the pump barrel, this space being closed at its upper end by the second plunger. To continue its upward movement, the oil must flow through the helical grooves of the second plunger, thereby imparting a torque to the cage. As in the first embodiment, a swivel connection is provided to permit rotation of the cage and plunger with respect to the pull rod.
Patent CA-2202332-A1 (CA)
Title: Power electronic circuit arrangement
Inventor: GRUENING HORST
IPC: H02M7/487
Filed: 1997-04-10
Abstract: A power electronic circuit arrangement which comprises a first power converter is specified. A second power converter is connected between the load terminals of the first power converter and a load. The negative or positive values of the DC voltage intermediate circuits of the first and second power converters can be added by means of corresponding driving of the power converters. This achieves finer voltage gradation and, consequently, an improved approximation of the resulting output voltage to the sinusoidal waveform.
Patent CA-2205430-A1 (CA)
Title: Method for making a medicament for treating secondary immunodeficiency
Inventor: HADDEN JOHN W
IPC: C12N5/0783
Filed: 1995-11-16
Abstract: A method of producing a natural cytokine mixture is disclosed including the steps of immobilizing at least one mitogen in a tissue culture vessel. An isolated population of lymphocytes free of neutrophils and erythrocytes, is suspended in a serum-free media and placed in the vessel. The lymphocytes are cultured, the media removed, and characterized for the yield of cytokines.
Patent CA-2207558-A1 (CA)
Title: Water-based laminating adhesives
Inventor: PERLINSKI WITOLD
IPC: C09J11/06
Filed: 1997-05-28
Abstract: A water-based adhesive that is delivered in a stable one-part system comprises (i) an emulsion of a vinyl and/or acrylic polymer; (ii) a water-dispersed ionic or nonionic polyurethane; (iii) a polyethylenimine; and (iv) a carbodiimide.
Patent CA-2212534-A1 (CA)
Title: Apparatus and methods for forming workpieces
Inventor: AUSTIN MICHAEL D
IPC: B21D43/05
Filed: 1996-03-07
Abstract: Die presses (P1, P2, P3, P4) containing removable dies (5) and arranged in a row (1) for operating successively on a workpiece (W) which traverses such row (1) utilize movable die carts (C1, C2, C3, C4, C5) which not only are capable of substituting one set of dies (5) for the dies (5) in the presses (P1, P2, P3, P4), but which also effect transfer of workpieces (W) between successive presses (P1, P2, P3, P4).
Patent CA-2222080-A1 (CA)
Inventor: CAILLETEAU BENOIT
IPC: A61F5/44
Filed: 1997-11-25
Abstract: This invention relates to a pouch presenting a supple outer envelope comprising an open collar followed by a widened part.  The pouch comprises a reinforcing element constituted by a relatively rigid and flexible sleeve extending in the collar from a first end located in the vicinity of the opening of the collar, up to a second end located towards the widened part.  The sleeve presents, in the vicinity of the base of the collar, a cut-out on either side of which are defined a first portion and a second portion.  The second portion is provided with two substantially transverse tabs which face each other and which have free lateral ends.  In the flattened configuration of the pouch in which the opening is closed, the sleeve is itself flattened and presents two wall elements disposed one against the other, while, in order to bring the collar into its substantially tubular configuration and open the opening, the sleeve is capable of being elastically deformed in order to adapt a so-called "open" configuration, in which the first portion is substantially tubular, while the lateral ends of the tabs are spaced apart from one another.
Patent CA-2224511-A1 (CA)
Title: Plastic paint roller frame
Inventor: TENNANT STEVEN C
IPC: B05C17/02
Filed: 1997-12-11
Abstract: A plastic paint roller frame includes a cross member having legs depending from opposite ends of the cross member, and pins on the legs in coaxial alignment with each other for rotatably mounting opposite ends of a roller cover between the legs. The legs have a pair of flexible ears on the inner ends thereof which are movable toward each other to permit the legs to be slid in and out of transverse openings in opposite ends of the cross member for ease of assembly and removal of the roller cover from the frame. External shoulders on the ears resist removal of the legs from the transverse openings when the legs are pushed into the transverse openings a sufficient distance such that the external shoulders clear the openings and the ears move the external shoulders radially outwardly into overlying relation with the upper ends of the transverse openings. The transverse openings and legs have axial slot and groove connections which prevent the legs from rotating within the transverse openings and maintain proper alignment of the pins on the legs with respect to each other.
Patent CA-2225169-A1 (CA)
Title: Procede de preparation de l'ethyl 3s-[[4-[[4-(aminoiminomethyl)phenyl]amino]-1,4-dioxobutyl]amino]-4-pentynoate
Inventor: HANSEN DONALD W JR
IPC: C07C257/18
Filed: 1996-07-12
Abstract: Procédé nouveau de préparation de l'éthyl 3S-[[4-[[4-(aminoiminométhyl)-phényl]amino]-1,4-dioxobutyl]amino]-4-pentynoate et d'un sel d'addition d'acide de celui-ci acceptable sur le plan pharmaceutique. Le procédé comporte le traitement séquentiel de (triméthylsilyl)acétylène avec du n-butyl-lithium et de la 4-formylmorpholine, suivi d'une acidolyse donnant du 3-(triméthylsilyl)-2- propynal; le traitement de ce dernier avec du lithium bis(triméthlsilyl)amide pour donner in situ de la N,3-bis(triméthylsilyl)-2-propyn-1-imine; la condensation de cette dernière avec du t-butyl acétate de lithium pour donner du (±)1,1-diméthyléthyl 3-amino-5(triméthylsilyl)-4-pentynoate; le traitement de ce dernier avec de l'acide p-toluènesulfonique pour donner du (±)1,1-diméthyléthyl 3-amino-5(triméthylsilyl)-4-pentynoate, sel d'acide mono p-toluènesulfonique; le traitement du sel résultant avec de l'éthanol en présence d'acide p-toluènesulfonique pour donner du (±)éthyl 3-amino-5-(triméthylsilyl)-4-pentynoate; la désilylation de ce dernier pour donner in situ du (±)éthyl 3-amino-5-(triméthylsilyl)-4-pentynoate pour donner du (±)éthyl 3-amino-4-pentynoate in situ; la résolution de ce dernier par de l'acide (R)-(-)-mandélique et le traitement du produit résolu par de l'acide chlorhydrique gazeux pour donner de l'éthyl 3S-amino-4-pentynoate, monochlorhydrate; enfin le couplage de ce dernier à de l'acide 4-[[4-(aminoiminométhyl)phényl]amino]-4-oxobutanoïque, monochlorhydrate en présence de chloroformate d'isobutyle et de N-méthylmorpholine pour donner de l'éthyl 3S-[[4-[[4-(aminoiminométhyl)phényl]amino]-1,4-dioxobutyl]amino]-4-pentynoate, monochlorhydrate.
Patent CA-2226843-A1 (CA)
Title: Treatment of acute leukemia with interleukin-10
Inventor: RYBAK MARY ELLEN
IPC: A61K38/20
Filed: 1996-07-10
Abstract: A method is provided for treating acute leukemias, e.g. acute myelogenous leukemia and acute lymphocytic leukemia. The method comprises administering to a mammal a therapeutically effective amount of interleukin-10.
Patent CA-2227929-A1 (CA)
Title: Bagel slicer
Inventor: GIBSON JEREMY H
IPC: B26D3/30
Filed: 1998-01-27
Abstract: A hand-held bagel slicer is described for circumferentially slicing a bagel into two equal halves. The slicer comprises a generally U-shaped clip attached to la handle. The clip comprises a generally semi-circular bight and two flexible legs. The legs converge slightly from the bight to their free ends to hold the bagel sideways, and the free ends are outwardly flared to facilitate insertion of the bagel for slicing. Midway between the two legs is a 2 edged knife blade. The blade has a base secured to the bight and a tip terminating in a point. The blade is about 50 to 75 % of the length of the legs. The free end of the handle is generally elliptical in cross section. The handle decreases in cross-sectional size and becomes generally rectangular in shape toward the flared end. The clip is joined to a core which has one or more small cross ribs extending laterally from a center rib to match with a similarly shaped recess in the handle to prevent relative rotation between the handle and the clip.
Patent CA-2228307-A1 (CA)
Title: Dispositif d'alimentation pour lessiveurs a haute pression
Inventor: PROEN A HILST ANTONIO GERALDO
IPC: D21C7/06
Filed: 1996-07-05
Abstract: Dispositif d'alimentation pour lessiveurs à haute pression du type comportant un ensemble d'alimentation (1) muni d'un corps tubulaire conique (6) possédant une buse d'entrée (9) et une buse de sortie (10) et étant monté sur un châssis (7), et d'un arbre fileté (11) reçu à l'intérieur de ce corps, cet arbre (11) étant entraîné par un moteur (2), un réducteur (3) et un régulateur de vitesse (4) par l'intermédiaire d'une première extrémité (14), et doté d'une extrémité distale opposée libre (13). Ledit arbre fileté (11) est pourvu, à l'aplomb de ladite buse d'entrée (9), d'un segment rectiligne (16) dans lequel les rainures hélicoïdales ont une profondeur homogène (12a) de manière à faciliter l'entraînement des matières. En outre, l'extrémité distale (13) dudit arbre fileté présente une conicité (17) qui correspond à celle dudit corps tubulaire (6), et la profondeur (12b) des rainures hélicoïdales à ladite extrémité distale diminue progressivement le long de l'arbre de manière à expulser les matières et à les presser contre la face interne du corps tubulaire.
Patent CA-2229439-A1 (CA)
Title: Hybrid microprocessor controlled ventilator unit
Inventor: MELKER RICHARD J
IPC: A61M16/00
Filed: 1996-08-16
Abstract: A method and apparatus for operating a ventilator in a primary electronic mode or in a back-up pneumatic mode during primary electronic mode failure. A method and apparatus for operating a ventilator in an advanced mode, having a number of ventilatory modes, or in a basic mode, having a limited number of ventilatory modes is also disclosed. A method and apparatus for controlling a ventilator is disclosed wherein the body length of a patient to be ventilated is utilized in determining one or more ventilation parameters. Ventilation limits and alarm settings are also determined in accordance with body length.  A method and apparatus is also disclosed for selecting a rate of rise of inspiratory pressure.
Patent CA-2230057-A1 (CA)
Title: An artificial stabilized composition of calcium phosphate phases particularly adapted for supporting bone cell activity
Inventor: SAYER MICHAEL
IPC: C04B41/87
Filed: 1996-08-30
Abstract: This invention relates to a bioactive artificial sintered composition for providing a morphology capable of consistently supporting bone cell activity thereon. The composition comprises stabilized calcium phosphate phases developed by the conversion of a hydroxyapatite substance in the presence of stabilizing entities at sintering temperatures into insolubilized and stabilized tricalcium phosphate. The present invention has numerous applications in medical diagnostics for the assessment of abnormal bone cell activity as well as for medical therapeutics, including bone and dental tissue replacement and repair as well as for ex vivo bone graft tissue engineering.
Patent CA-2234253-A1 (CA)
Inventor: WALKER ROGER P
IPC: G01N33/76
Filed: 1996-10-11
Abstract: A test method for determination of the presence of bladder cancer by determination of the urinary gonadotropin peptide (UGP) levels in no-blood body fluids is described. The method can also be used to monitor the course of bladder cancer and its treatment and the reoccurrance of the disease.
Patent CA-2234884-A1 (CA)
Inventor: RIVIER JEAN E F
IPC: A61P35/00
Filed: 1996-10-07
Abstract: L'invention porte sur des analogues du SRIF présentant une affinité sélective pour le SSTR1 par contraste avec les autres récepteurs clonés du SRIF. Lesdits analogues s'avèrent utiles pour évaluer l'expression tissulaire et cellulaire du récepteur SSTR1 et son rôle biologique dans les systèmes endocrinien, exocrinien et nerveux, ainsi que dans la régulation de la croissance des tumeurs. Des peptides analogues du SRIF tels que le des-AA?1,2,5¿ [D-Trp?8¿, IAmp?9¿]-SRIF inhibent la fixation du [?125¿I-Tyr?11¿]SRIF au récepteur SSTR1 cloné, mais ne se fixent pas aux SSTR2 et SSTR3 de la souris, ni au SSTR4 de l'homme, ni au SSTR5 du rat. En incorporant une tyrosine iodée en position-2 dans ces analogues sélectifs du SRIF, on obtient un composé marqué utilisable pour le dépistage des drogues.
Patent CA-2235819-A1 (CA)
Inventor: KISHI TOYOAKI
IPC: H05K3/46
Filed: 1996-10-24
Abstract: A multilayer printed circuit board, characterized by being composed of an internal layer circuit board (1) coated with a light and heat curable undercoating agent (3), a copper foil (5) and an insulating adhesive (4) comprising as the main component a brominated bisphenol type epoxy resin or brominated phenoxy resin having a weight average molecular weight of at least 10,000, the copper foil (5) and the insulating adhesive (4) being laminated to one side or both sides of the internal layer circuit board (1) and being integrally cured with the internal layer circuit board (1) and the undercoating agent (3).
Patent CA-2236032-A1 (CA)
Inventor: SCHOLZ MATTHEW T
IPC: G01K11/06
Filed: 1996-10-31
Abstract: A critical temperature indicating device is provided. It includes a microporous membrane, an indicating composition containing less than about 10 wt.% water, and means for containing the microporous membrane and the indicating composition. The indicating composition includes: a primary organic component comprising at least one compound that has a freezing point above the critical temperature and does not spontaneously wet out the microporous membrane at a temperature at least about 30 ~C above the critical temperature;  a modifying component comprising at least one compound that has a freezing point below the critical temperature; and a wetting component comprising at least one compound that has a freezing point below the critical temperature and is capable of spontaneously wetting out the microporous membrane at about the critical temperature.
Patent CA-2238400-A1 (CA)
Title: Dispositif transdermique destine a l'administration du flurbiprofene
Inventor: EFFING JOCHEM J
IPC: A61K31/192
Filed: 1996-12-16
Abstract: L'invention se rapporte à un dispositif d'administration transdermique de médicaments comprenant un copolymère à base d'acrylate ou de méthacrylate, un activateur de pénétration cutanée, un polymère de polyvinylpyrrolidone et une quantité thérapeutiquement efficace de flurbiprofène.