baber/WOPTO huggingface dataset:
Patent CA-2013872-C (CA)
Title: Electric motor speed control apparatus and method
Inventor: MERRISON JOHN C
IPC: H02P3/18
Filed: 1990-04-04
Granted: 2000-01-11
Abstract: The speed of an induction motor is reduced by initially using dynamic electrical braking to slow the motor to a speed at which it will not remain synchronized to the A.C. supply frequency. At this point, A.C. cycle skipping is employed to apply current to the motor at an effective frequency which is a fundamental frequency component of the A.C. supply line frequency. The motor becomes synchronized to this fundamental frequency component. If desired, the motor can be brought to a complete stop by discontinuing the cycle skipping and using the dynamic braking again for a given period of time. This technique provides a very controlled stopping of the motor enabling equipment driven by the motor to be accurately positioned.
Patent CA-2014172-C (CA)
Title: Track access control system in rotating disc devices with eccentricity correction
Inventor: YANAGI SHIGENORI
IPC: G11B7/095
Filed: 1990-04-09
Granted: 1994-11-01
Abstract: A track access control system in a rotating disc storage device including: a data writing/reading head which is movable in a radial direction of a rotating disc; and an impinging beam moving mechanism is mounted on the data writing/reading head, for moving am impinging position of the optical beam for the data writing/reading, on the data writing/reading head. A relative position of the impinging beam on the disc from an optimum position is detected. The position of the head is controlled responding to a low frequency component of the above detected deviation, and the operation of the impinging beam moving mechanism is controlled responding to a high frequency component of the above detected deviation, so that the deviation is reduced during a track servo operation. A waveform memorizing circuit records a waveform of the movement of the head during a track servo operation. A track jump control mechanism moves the head and the above relative position of the impinging beam so that the position of the impinging beam moves to a requested track. During the track jump operation, control quantities to move the head and the above relative position of the impinging beam is modified by adding the above recorded data of the waveform memorizing circuit thereto, corresponding to a current rotation angle of the disc. Further, when an erasing beam outputting unit is mounted on the head, a displacement of an outputting position of the erasing beam on the head from a predetermined position, is memorized during a track servo operation, and is added in the above modification during the track jump operation.
Patent CA-2017993-C (CA)
Title: Lancette
Inventor: BROWN MICHAEL K
IPC: A61B5/151
Filed: 1990-05-31
Granted: 1998-04-21
Abstract: Ensemble de lancette constitué d'une unité de base réutilisable délimitant une poignée et abritant un mécanisme de flexion permettant de faire pénétrer la lancette dans le doigt de l'utilisateur. L'unité de base comporte un marteau infléchi par un ressort qui, une fois levé, peut être relâché pour diriger la lancette. Une lancette, placée dans une capsule, peut être rattachée de manière non permanente à une extrémité de cette unité de base. La capsule comporte des doigts intégrés à ressort élastique qui maintiennent l'ensemble de la lancette dans cette capsule avant et après son utilisation, et qui, par leur action, font en sorte que la lancette regagne sa place après l'interaction de la lancette et du marteau. Il est possible de faire tourner la capsule pour lui donner l'orientation voulue par rapport au doigt de l'utilisateur, afin de contrôler la profondeur de pénétration de la lancette dans le doigt de l'utilisateur.
Patent CA-2019273-C (CA)
Title: Amphoteric compositions and polymeric forms of alpha hydroxyacids and their therapeutic use
Inventor: VAN SCOTT EUGENE J
IPC: A61K8/362
Filed: 1990-06-19
Granted: 2001-05-29
Abstract: Preventive as well as therapeutic treatment to alleviate cosmetic conditions and symptoms of dermatologic disorders with amphoteric compositions containing alpha hydroxyacids, alpha ketoacids, related compounds or polymeric forms of hydroxyacids is disclosed. The cosmetic conditions and the dermatologic disorders in which the amphoteric compositions and the polymeric compounds may be useful include dry skin, dandruff, acne, keratoses, psoriasis, eczema, pruritus, age spots, lentigines, melasmas, wrinkles, warts, blemished skin, hyperpigmented skin, kyperkeratotic skin, inflammatory dermatoses, skin changes associated with aging, and skin requiring cleansers.
Patent CA-2020011-C (CA)
Title: Heating/cooking apparatus
Inventor: TAKAGI MINORU
IPC: H05B6/80
Filed: 1990-06-27
Granted: 1993-07-20
Abstract: ABSTRACT OF THE DISCLOSURE    An improved apparatus  for heating and cooking foods includes an oven frame having an interior formed as an oven chamber, a turn dish turnably supported on the bottom of the oven  chamber,  a  plurality  of  rollers  rotatably disposed between the turn dish and the outer peripheral region of a bottom plate, and holding means projecting downward of the bottom of the turn dish.  The rollers are rotatably received in an annular groove around the outer peripheral region of the  turn  dish.   The  holding  means  comprises  an  annular trough having a V-shaped sectional shape.   The lowermost part of the annular trough is located lower than the rolling surface for the rollers.  The holding means may comprise a plurality of downward projections  formed around a single circle in an equally spaced relationship.
Patent CA-2020186-C (CA)
Inventor: DROULON GEORGES
IPC: B60N2/90
Filed: 1990-06-29
Granted: 1992-12-01
Abstract: A B S T R A C T  O F  T H E  D I S C L O S U R E     The articulation mechanisms is made particularly of irreversible satellite mechanisms connected to  one another by a connection bar. The connection bar has, on one of its portion, a member with toothings subjected to action of a spring which, when the connection bar is in position between two cams of the articulation mechanisms, causes a rotation of these cams and of the satellites related thereto for taking up the manufacturing and mounting clearances.
Patent CA-2022274-C (CA)
Title: Control of corrosion in aqueous systems using certain phosphonomethyl amine oxides
Inventor: HWA CHIH M
IPC: C02F5/10
Filed: 1990-07-30
Granted: 1999-07-13
Abstract: This invention relates to controlling corrosion in aqueous systems and more particularly to using certain calcium insensitive phosphonomethyl amine oxide compounds. The compounds of this invention are water soluble phosphonomethyl amine oxides having at least one oxidized tertiary amine group of the formula:         (see fig. I) and water soluble salts thereof and having a cloud point of at least about 25 ppm.
Patent CA-2024302-C (CA)
Title: Magnetic valve
Inventor: NICOLAISEN HOLGER
IPC: F25B41/06
Filed: 1990-08-30
Granted: 1995-06-13
Abstract: A magnetic valve comprises a magnet coil (4), a valve shank (13) at the same time formed as a magnet armature, a valve plate (15) surrounding the valve  shank  (13),  at least one valve seat (17) and a resetting spring (16) which holds the plate  (15)  to  the  seat  (17)  when the magnet coil  (4)  is switched off.  The valve plate (15)  is made separately from the valve shank (13) and contains an annular plate (25)  of resilient metal with projecting teeth at least at the inner edge of the annular plate (25) and a coating (28) of elastic plastics sprayed on to the plate (25) to leave at least part of the  teeth  uncoated.   In comparison with a  rigid valve plate made in one piece with the armature,  this valve plate is adaptable  to  unevennesses of the valve  seat  so  that a tight  sealing  effect  is  obtained  but  it  is  nevertheless adequately strong to transmit the necessary actuating forces and withstand the fluid pressures without markedly bending.
Patent CA-2029263-C (CA)
Title: Cosmetic composition
Inventor: NAMBUDIRY MAYARA EASWARAN NARA
IPC: A61K8/35
Filed: 1990-11-02
Granted: 1995-09-05
Abstract: A sunscreen composition suitable for topical application to human skin or hair, to provide protection from excessive exposure to ultra-violet rays, comprises:   i)      an effective amount of a substituted 1,3-diketone having an ultra-violet absorption band within the range of from 250 to 500 nm, and an extinction coefficient ? of from 5,000 to 70,000;  and ii)     a physiologically acceptable vehicle for the substituted 1,3-diketone.
Patent CA-2030068-C (CA)
Inventor: ROYAERTS DIDIER
IPC: A62C3/02
Filed: 1990-11-15
Granted: 1999-03-16
Abstract: New material intended especially to be used as a firebreak, characterised in that it consists of a knitted fabric produced from a yarn made up, on the one hand, from a first synthetic material which has a high mechanical strength and a high reflectivity and, on the other hand, a thermally stabilised, nonflammable second synthetic material which has a considerable reflectivity.
Patent CA-2038502-C (CA)
Title: Process for making controlled, uniform-sized particles in the 1 to 50 micrometer range
Inventor: FRAZZA MARK STEPHEN
IPC: C08F/
Filed: 1991-03-18
Granted: 2003-05-20
Abstract: Uniformly sized polymer particles 0-150µm diameter are made by gradually combining a water-insoluble monomer mixture with an aqueous dispersion of emulsion-polymerized polymer particles in the presence of a dispersion stabilizer and an oil-soluble, free-radical polymerization initiator.
Patent CA-2039439-C (CA)
Title: Intank fuel heater
Inventor: HURNER ERWIN E
IPC: B60K15/03
Filed: 1991-03-28
Granted: 2001-10-09
Abstract: A fuel heater formed from an elongated unitary structure which defines a fuel channel passing through the length thereof and which defines in the bottom thereof a fuel intake. The unitary structure also defines a heating fluid inlet and outlet on one side of the fuel channel which communicate with one another on that one side of the fuel channel.
Patent CA-2040877-C (CA)
Title: Method for the preparation of fructose-containing oligosaccharide
Inventor: FUJITA KOKI
IPC: C12P19/12
Filed: 1991-04-19
Granted: 1999-03-09
Abstract: An enzymatic method is proposed for the preparation of a fructose-containing oligosaccharide, in which a .beta.-fructofuranosidase obtained by culturing Arthrobacter sp. K-1 (FERM          BP-3192) as an enzyme is reacted on sucrose, raffinose or stachyose as the donor in the presence cf an aldose or ketose as the receptor.  The enzyme is characterized by:          (1) activity on sucrose for the transglycosidation of a fructosyl group to the receptor in the presence of a monosaccharide, sugar alcohol, alkyl alcohol, glycoside or oligosaccharide;          (2) activity for the decomposition of sucrose, elrose, neokestose, xylsucrose, raf~inose and stachyose with inactivity on a saccharide selected from the group consisting of 1-kestose, nistose, inulobiose and levan biose;    (3) optimum pH of 6.5 to 6.8 at 40°C with stability at a pH of 5.5 to 10;          (4) optimum temperature of 55°C at a pH of 6.5 exhibiting at least 70% of residual activity at 60°C;          (5) susceptibility to inhibition by the ions of silver, mercury, zinc, copper and tin;          (6) two molecular weights of 52,000 ~ 2,500 and 58,000 ~ 2,500; and (7) two isoelectric points of pH 4.3 and pH 4.6.
Patent CA-2042908-C (CA)
Title: Non-toxic photographic developer composition for processing x-ray films in automatic processors
Inventor: KNAPP AUDENRIED W
IPC: G03C5/305
Filed: 1991-05-21
Granted: 1996-09-24
Abstract: An environmentally acceptable, non-hazardous and stable developer composition specifically designed for developing X-ray films in automatic film processors is described. This composition contains ingredients that are not considered toxic by OSHA or listed in any section of SARA Title III and is based on a novel combination of ascorbates or erythorbates and sodium sulfate and/or glutaraldehyde to reduce emulsion swelling and permit rapid processing.
Patent CA-2053865-C (CA)
Title: Synchronisation continue du cryptage pour systeme de communication cellulaire
Inventor: DENT PAUL WILKINSON
IPC: H04L9/12
Filed: 1991-03-06
Granted: 2000-05-16
Abstract: On décrit un système de synchronisation des dispositifs de codage d'un système de communication cellulaire. Chacun des dispositifs comprend un compteur à éléments binaires multiples, et génère un train de données pseudo-aléatoires de codage qui est combiné avec les données à mettre en code. Le train de données est fonction de la valeur du compteur à éléments binaires multiples, qui est incrémenté périodiquement en fonction d'une série d'impulsions d'horloge. Afin de permettre un déchiffrage correct des données chiffrées, le système de l'invention permet des mises à jour continuelles ou très fréquentes de la valeur du compteur de l'émetteur, qui peut être utilisée pour remettre à zéro le compteur récepteur et pour recaler la synchronisation du système, sans qu'il soit nécessaire de réinitialiser et répéter les impulsions d'horloge intermédiaires.
Patent CA-2059327-C (CA)
Title: Femoral rasp and method of making same
Inventor: MORR JAMES JOSEPH
IPC: B29C33/14
Filed: 1992-01-14
Granted: 2003-10-14
Abstract: A method of making a femoral rasp wherein the hip stem implant is used to make a two part mold. The mold halves are separated and the implant removed to yield left and right mold halves representing corresponding halves of the hip stem. The cavities of the mold halves are lined with wax and a plurality of blades are imbedded into the wax such that an anchor portion of each of the blades remains exposed. The mold halves are connected together and a stem of handle is inserted therein. A moldable material such as PMMA is poured into the mold and allowed to cure. When the PMMA is hard or cured, the mold halves are separated and the wax is removed from the rasp body exposing the cutting surfaces of the teeth.
Patent CA-2065310-C (CA)
Title: Method of producing steel wires each having very small diameter, high strength and excellent ductility
Inventor: OBA HIROSHI
IPC: C21D8/06
Filed: 1990-06-27
Granted: 1997-08-26
Abstract: The present invention is concerned with a method of producing steel wires each having a very small diameter of 0.4 mm or less and a tensile strength of 360 kgf/mm or more wherein a steel material having a composition comprising C:  0.90 to 1.10% by weight, Si:  0.4% or less by weight, Mn:  0.5% or less by weight, Cr: 0:10 to 0.30% by weight and a balance of iron an unavoidable impurities is subjected to diffusion treatment as desired, thereafter, the steel material is subjected to hot rolling, the hot-rolled steel wire is subjected to drawing, subsequently,the resultant steel rod having a smaller diameter si subjected to a final patenting treatment to give said rod a strength of 140 to 160 kgf/mm, and thereafter, it is subjected to drawing with a true strain of 3.50 or more using a die having a die approach angle of 8 to 12 degrees.
Patent CA-2069093-C (CA)
Inventor: JAMIESON JAMES GERARD
IPC: B65D85/73
Filed: 1990-11-22
Granted: 2001-03-06
Abstract: Pour servir des boissons gazeuses, plus particulièrement de la bière et tout spécialement de la bière à la pression, il est appréciable d'obtenir un faux col ferme et bien crémeux. On réalise ceci à l'aide d'un récipient (1) comprenant un élément rapporté séparé creux et fermé (5) ne contenant pratiquement aucun gaz oxydant et un système (6) qui, dès l'ouverture du conteneur (1), permet la communication entre l'intérieur de l'élément rapporté (5) et la boisson (7) contenue dans le corps du récipient (1) lors de l'ouverture de celui-ci pour faire jaillir dans la boisson (7) le gaz provenant de l'élément rapporté (5). De préférence, le système (6) se présente sous la forme d'une soupape réagissant à la pression. L'élément rapporté (5) peut être installé de telle sorte que sa pression interne augmente après la fermeture hermétique du récipient (1), ou encore le système (6) peut avoir lors de son introduction initiale dans le récipient (1) une pression de décharge différente de celle qui sort lors de l'ouverture du récipient (1).
Patent CA-2075521-C (CA)
Inventor: KOYAMA KUNIAKI
IPC: A61K39/39
Filed: 1992-08-07
Granted: 1995-11-28
Abstract: Disclosed is a stabilized live vaccine containing a varicella virus and a stabilizer, wherein the vaccine is substantially free of Ca2+ ions and Mg2+ ions.  This stabi-lized live vaccine is extremely excellent in storage sta-bility and heat resistance.  Also disclosed is an improved stabilizer for a live varicella vaccine, comprising at least one member selected from gelatin and hydrolyzed gelatin, each being substantially free of Ca2+ ions and Mg2+ ions.  The stabilizer can advantageously be used to stabilize a live vaccine containing a varicella virus.  The substantial freedom of Ca2+ ions and Mg2+ ions can be attained by masking Ca2+ ions and Mg2+ ions present in a live vaccine containing a varicella virus and a stabilizer, with a chelating reagent, or by using as a stabilizer gelatin and/or a gelatin derivative after being purified to remove Ca2+ ions and/or Mg2+ ions contained therein.
Patent CA-2078894-C (CA)
Title: Conductor rails for electric railway system
Inventor: HARTLAND DAVID JULIAN
IPC: B60M1/30
Filed: 1992-09-23
Granted: 2001-07-31
Abstract: A conductor rail has a main body (10) of aluminium and a facing layer (11) formed of a steal having a chromium content of between 10 and 13.5% by weight. The preferred steel composition is that of British Standard No. 416 521,
Patent CA-2084730-C (CA)
Title: Skin antiseptic and hand disinfectant
Inventor: EGGENSPERGER HEINZ
IPC: A01N31/02
Filed: 1992-12-07
Granted: 1998-05-05
Abstract: The invention is directed to a composition comprising an alkyl alcohol component, at least one glycerol monoalkyl ether and water.
Patent CA-2086358-C (CA)
Title: Tap-weight controller for adaptive matched filter receiver
Inventor: YAMAMOTO TAKESHI
IPC: H03H17/00
Filed: 1992-12-29
Granted: 1999-02-02
Abstract: In an adaptive matched filter with a decision feedback equalizer (DFE), a tap-weight controller of the matched filter includes a tapped delay line having a series of delay elements for receiving an incoming digital signal to produce successively delayed signals at successive taps of the delay line so that the signal at the center tap coincides with an output of the DFE. Cross-correlators are associated respectively with tap-weight multipliers of the matched filter. In each cross-correlator, cross-correlation is detected between a digital sample from the DFE and a delayed version of the corresponding digital sample. An average value is taken of the cross-correlation to produce higher significant bits of a tap-weight coefficient for the corresponding tap-weight multiplier. The most significant bit of the output of the higher significant bits is inverted and a group of bits is produced, each having the same binary value as the inverted most significant bit. The group of bits is supplied to the corresponding tap-weight multiplier as lower significant bits of the tap-weight coefficient..
Patent CA-2092023-C (CA)
Title: End load carton handle improvement
Inventor: MACLEAN CHRIS
IPC: B65D71/00
Filed: 1993-03-19
Granted: 1997-11-18
Abstract: A bottle carrying carton for carrying bottles in an upright state includes a bottom panel on which said bottles are arranged.          Opposed side panels and opposed end panels are provided, each end panel having a handle flap cut therein to define a handle upon being folded inwardly.  The invention relates to an improvement comprising a primary fold line formed in the handle flap from one side to the other thereof, and a slit formed in the handle flap from the mid point of the primary fold line to the lowermost edge of the handle flap.
Patent CA-2098363-C (CA)
Title: Silicon carbide with controlled porosity
Inventor: DIVAKAR RAMESH
IPC: C04B38/00
Filed: 1993-06-14
Granted: 2003-02-25
Abstract: Silicon carbide sintered bodies having controlled porosity in the range of about 2 to 12 vol%. in which the pores are generally spherical and about 50 to 500 microns in diameter, are prepared from raw batches containing a polymer fugitive. Sintered bodies in the form of mechanical seal members exhibit lower power consumption at low PV and, in addition, lower wear rates at high PV in comparison to commercially available silicon carbide seal members.
Patent CA-2107755-C (CA)
Inventor: JANSSEN PAUL ELLIOTT
IPC: H04Q11/04
Filed: 1993-10-05
Granted: 1998-07-07
Abstract: A second set of telecommunication devices (IOP1, AM1, CM1) is arranged to substantially mirror a first set of telecommunication devices (IOP0,AM0, CM0) in order to provide redundancy. First and second computer modules are included, respectively, in the first and second sets of devices wherein each module is capable of providing operating system control of the system and both modules initially operating with the same operating system. Only one of the computer modules controls the system at a given time. One of the devices of each pair of devices in the first and second sets of devices is isolated from the corresponding other device. The isolated computer module is loaded with a new operating systemand tested by allowing the new operating system to control the isolated devices.This permits testing of the new operating system while maintaining uninterruptedcontrol which is provided by the other devices operating under the same operating system. A further capability is provided for transferring control of the system to the isolated devices thereby transferring control from the same operating system to the new operating system with a minimum of service disruption.
Patent CA-2110398-C (CA)
Inventor: BODNAR ERNEST ROBERT
IPC: E04C3/09
Filed: 1992-06-03
Granted: 2001-05-08
Abstract: Elément de structure en tôle destiné à former un panneau de construction coulé, ledit élément étant constitué d'une bande de tôle (44) formant une bordure linéaire (40) le long d'un côté, et une bordure en zig-zag (42) le long de l'autre côté, la bordure en zig-zag formant des régions plus larges, ainsi que des régions plus étroites entre les régions plus larges, et la bande s'étendant d'une façon généralement triangulaire d'une région plus étroite jusqu'à la région la plus étroite en passant par la région plus large, de parties de bordure façonnées autour des bordures en zig-zag de la bande, et de dispositifs de fixation (70) situés à la pointe de chacune des parties plus larges de la bande pouvant se fixer à un matériau de construction. L'invention décrit également un panneau de construction (22) incorporant de tels éléments de structure, et une méthode de fabrication par paire desdits éléments, ainsi qu'une procédure de construction d'immeuble utilisant lesdits éléments structuraux.
Patent CA-2119603-C (CA)
Inventor: JOHNSON WILLIAM B
IPC: A61C5/04
Filed: 1994-03-22
Granted: 2004-08-24
Abstract: The present invention is an improved method and device used in applying gutta percha to a carrier which will later be used in filling and sealing an interior of a tooth after a root canal has been performed on the tooth. The method consists of inserting a gutta percha filled cannula into the barrel cavity of a syringe-type device, heating the cannula in order to increase the plasticity of the gutta percha, inserting a carrier into the cannula at the dispensing end of the syringe-type device and pushing a plunger of the syringe-type device downward in order to push the carrier, which is now coated with the gutta percha previously contained in the cannula, out of the dispensing end of its cannula. The gutta percha coated carrier is then ready for use in the root canal. An alternate embodiment of the syringe-type device employs a modified plunger to accommodate an alternate cannula which is provided with its own dispensing cannula plunger.