baber/WOPTO huggingface dataset:
Patent CA-2197287-A1 (CA)
Title: Nonlinear proportional integral controller
Inventor: KHAYYAT AMIR ALI-AKBAR
IPC: G05D3/12
Filed: 1997-02-11
Abstract: A method and apparatus for controlling a hydraulic manipulator defines a position error signal (~e), defining a first control signal (Up, UPD) based on the position error (~e) and generating an improved position error integral signal (~I) based on a product of the position error (~e) integral signal and a velocity factor Fv. The velocity factor Fv is based on a derivative of the position error (~e) and a nonlinear function. An integral control signal (UI) is produced based on the improved position error integral signal (~I) and is combined with the first signal (Up, UPD) to provide an output control signal U to control the manipulator. The invention also preferably includes a system to further reduce overshoot by further modifying the position error signal (~e) depending on whether the velocity and acceleration of position are in the same direction and to accommodate stiction at deadband areas of the control by determining a stick induced velocity error signal (~e . stiction) and modifying the control signal when required.
Patent CA-2197855-A1 (CA)
Title: Security Valve Assembly
Inventor: ECKEL JOHN
IPC: F16K35/06
Filed: 1997-02-18
Abstract: Difficulties with accessibility to a valve and the entry of precipitation into a locking mechanism for the valve are eliminated in a security valve assembly that includes a valve body (22), (100) including a pair of spaced ports (12), (18); (102), (104) with a passage (38), (106) extending between the ports. A valve member (26), (110) is rotatable within the body between an open position and a closed position and may be rotated by an actuator (32), (118). The body (22), (100) includes a lock receiving chamber (50), (130) for removably receiving a lock (52), (136) in a direction generally transverse to the passage (38), (106).
Patent CA-2204460-A1 (CA)
Inventor: HOME WILLIAM
IPC: F16K31/26
Filed: 1997-05-05
Abstract: A overfill protection device includes a first tubular body having an axial through hole with a larger diameter at one end thereof and a smaller diameter at another end thereof thus forming a shoulder portion therebetween, a second tubular body including an upper portion having a cylindrical recess open at an upper end thereof and provided with internal threads engaged with a lower threaded end of the first tubular body, an intermediate portion having a smaller diameter than the upper portion and having a plurality of radial holes, a neck portion between the upper and intermediate portions, and a lower portion having a smaller diameter than the intermediate portion, a cylindrical piston fitted between the first and second tubular bodies and including an upper portion, a lower portion having a smaller diameter than the upper portion, and a neck portion between the upper portion and the lower portion, a float rod having an upper end pivotally connected with a lower end of the second tubular body, and a float fixedly connected with a lower end of the float rod.
Patent CA-2204743-A1 (CA)
Inventor: YAMADA HIDEAKI
IPC: C12N9/18
Filed: 1996-09-13
Abstract: A novel enzyme which is useful in the optical resolution of D,L-pantolactone via D-selective asymmetric hydrolysis and a gene encoding the the same are provided.  The invention discloses the gene coding for a natural D-pantolactone hydrolase (for example, one originating in Fusarium oxysporum) or proteins having an activity substantially equivalent thereto; host cells transformed with DNA containing a nucleotide sequence coding for said protein, processes for producing said protein via using said host cells and uses of said proteins and host cells.
Patent CA-2206363-A1 (CA)
Title: Head lamp device for vehicle
Inventor: GOTOH SHINICHIRO
IPC: B60Q1/12
Filed: 1997-05-28
Abstract: A head lamp device for a vehicle capable of changing a lighting region in front of the vehicle in rightward and leftward directions is provided. The device comprises lighting region changing means for changing the lighting region of the head lamp, right wheel speed detecting means for detecting a rotational speed of a right wheel, left wheel speed detecting means for detecting a rotational speed of a left wheel, lighting angle calculating means for calculating a lighting angle of the head lamp from the right and left wheel rotational speeds detected by the right wheel speed detecting means and the left wheel speed detecting means respectively, and control means for controlling the lighting region changing means on the basis of the lighting angle calculated by the lighting angle calculating means to change the lighting region.
Patent CA-2207349-A1 (CA)
Inventor: CROWSON KELLY L
IPC: B25H3/00
Filed: 1997-06-09
Abstract: A framework having end members joined by longitudinal members to define an area for the reception of a tool chest.  A bail assembly of the framework includes a cross member on which an eye equipped sleeve is positionable and lockable to permit lifting of the tool chest and framework in the horizontal regardless of being in an unbalanced state. Fittings on the end members receive turnbuckles for securing the framework and tool chest to a supporting surface such as the bed of a truck. Tool chest removal from the framework is prevented by a component of each end member overlying a tool chest handle.
Patent CA-2208149-A1 (CA)
Title: Sustained release caffeine formulation
Inventor: TACHON PIERRE
IPC: A61K9/52
Filed: 1995-11-27
Abstract: The present invention relates to a composition for the controlled release of a stimulant of xanthine or a xanthine derivative, which comprises microparticles including a biodegradable matrix of at least one water-soluble material and the stimulant, said stimulant being in the form of solid particles which are substantially uniformly distributed throughout the matrix. It is also concerning a method for making this composition by dispersing the stimulant in the form of a plurality of solid particles into a biodegradable matrix. Such composition can advantageously be orally administrated for increasing the alertness of an individual.
Patent CA-2208937-A1 (CA)
Inventor: TSVOK IGOR
IPC: A63B21/002
Filed: 1997-06-27
Abstract: A round portable rod for making physical and/or rehabilitation exercises and measurements is provided with two series of indica. The first series of indicia ascends progressively from one end to the other; the second series of indicia extend in equal increments on either side of the mid-point of the rod.
Patent CA-2209831-A1 (CA)
Title: Directly imageable raw plate for waterless planographic printing plate
Inventor: KAWAMURA KEN
IPC: B41N1/00
Filed: 1996-11-08
Abstract: A directly imageable raw plate for waterless planographic printing plate, in which a heat insulating layer, heat sensitive layer and ink repellent layer are formed in this order on a substrate, comprising physical properties of 5 to 100 kgf/mm2 in initial elastic modulus and 0.05 to 5 kgf/mm2 in 5% stress as tensile properties of the heat sensitive layer or the heat insulating layer or the laminate consisting of both the layers. It can be suitably used also for large printing presses and web offset printing presses requiring high printing durability, and makes it possible to obtain an economically advantageous printing plate.
Patent CA-2210048-A1 (CA)
Title: Molded cabling, preform for making and method of making
Inventor: YSBRAND FLOYD R
IPC: H01B7/08
Filed: 1996-01-31
Abstract: A molded cable comprises a plurality of conductors (69) and a webbed conductor harness (61). The webbed harness has openings formed by intersecting strands (75), the strands including channels (73) therethrough for the conductors. The webbed harness can be made in combination with the conductors or with a preform to form the channels. The preform can then be replaced by the conductors to form the molded cabling.
Patent CA-2210121-A1 (CA)
Title: Self-healing line switched ring for atm traffic
Inventor: ELLIS DONALD RUSSELL
IPC: H04L12/70
Filed: 1997-07-09
Abstract: The invention provides for a method for transporting a SONET formatted asynchronous transfer mode (ATM) signal and/or a synchronous transfer mode (STM) signal on a line switched ring over a unidirectional path. The SONET formatted ATM signal comprises cells mapped into a STS-Mc or MxSTS-1s while the STM signal comprises STS-1s/VTs mapped STS-W. A unidirectional line switched ring is provided for transporting the STM STS-W using a unidirectional path switched protection protocol and the ATM STS-Mc using a unidirectional line switched protection protocol. A ring node comprises input and output ring interfaces, an STS management block, an ATM cell management block, and a non-ATM payload management block. The STS management block routes the traffic to the ATM cell management block and to the non-ATM payload management block, according to the traffic type. The STS management block also provides the UPSR protection for the STS-is and ULSR protection for the STS-Mc. The ATM cell management block maps the add ATM cells received from the ATM ports into the STS-Mc signal, and delineates the cells from the STS-Mc to present them to the ATM ports. The non-ATM payload management block routes STM VTs or STS-1s to/from the non-ATM ports.
Patent CA-2214187-A1 (CA)
Title: Authentication system wherein definition signals of two devices are altered, communicated between the two devices, and compared
Inventor: VAN TILBURG JOHAN
IPC: G07F7/10
Filed: 1997-08-28
Abstract: An authentication system having a first device and a second device between which signals may be communicated. The first device includes a first memory for storing a definition signal and the first device generates a first signal to be communicated to the second device. The first device also generates a first alteration signal, and introduces an alteration into a first section of the definition signal stored in the first memory in accordance with the first alteration signal. The second device includes a second memory for storing the definition signal, and generates, in response to a receipt of the first signal, a second signal to be communicated to the first device. The second signal includes a second section of the definition signal stored in the second memory, and the second device also generates a second alteration signal and introduces an alteration into a third section of the definition signal stored in the second memory in accordance with the second alteration signal. In addition, the first device compares the second section of the definition signal in the second signal originating from the second device with a corresponding section of the definition signal stored in the first memory, and introduces the alteration into the first section of the definition signal stored in the first memory in accordance with a comparison result. The first and third sections, moreover, are corresponding sections of the definition signals stored in the first and second memories respectively.
Patent CA-2214426-A1 (CA)
Inventor: GERST CATHERINE
IPC: A61K8/00
Filed: 1997-09-16
Abstract: L'invention concerne l'utilisation dans une composition cosmétique ou pour la préparation d'une composition pharmaceutique, pour favoriser la pigmentation de la peau et/ou des cheveux, d'au moins un dérivé de pyrimidine 3-oxyde, substitué en 6. L'invention concerne également une composition contenant au moins un des substrats de la tyrosinase et au moins un dérivé de pyrimidine 3-oxyde, substitué en 6 et son utilisation.
Patent CA-2214435-A1 (CA)
Inventor: WRIGHT KELLY D
IPC: G11B21/12
Filed: 1996-03-01
Abstract: Dispositif de stockage de données (40) destiné à recevoir un chargeur amovible (10), constitué d'une plate-forme coulissante (50), d'une tête rétractible (18, 19), et d'un système de rétraction de la tête (70). La plate-forme coulissante se déplace entre une position avant, où le chargeur est éjecté, et un position arrière, où le chargeur est en position de lecture des données. Ainsi, lorsque le chargeur est éjecté, la plate-forme coulissante se déplace de la position arrière vers la position avant. Lorsque la plate-forme se déplace vers l'avant, le système de rétraction de la tête amène les têtes rétractibles à leur position abritée, ce qui permet d'éviter tout dommage sur les têtes.
Patent CA-2216875-A1 (CA)
Title: Fiber-derived colloidal dispersions and use in foods
Inventor: GROSS AKIVA T
IPC: A23L1/308
Filed: 1996-04-16
Abstract: Fiber-derived homogeneous colloidal dispersions or gels and powders produced therefrom are described. The dispersions or gels are prepared by enzyme hydrolysis and subsequent mechanical disintegration. Food formulations comprising the stable, homogeneous colloidal dispersions, gels and powders are also described.
Patent CA-2217295-A1 (CA)
Title: Graft polymers made of alkylene oxide units-containing polymers and ethylenically unsaturated compounds, process for preparing the same and their use
Inventor: STANGE ANDREAS
IPC: C08B31/12
Filed: 1996-04-20
Abstract: Graft polymers are obtainable by free radical polymerization of (A) monomers or monomer mixtures comprising (a) from 10 to 100% by weight of N-vinylcarboxamides of the formula (see formula I), where R1 and R2 are each H or C1-C6-alkyl, (b) from 0 to 90% by weight of other monoethylenically unsaturated monomers copolymerizable with the monomers (a) and (c) from 0 to 5% by weight of monomers having at least two ethylenically unsaturated, nonconjugated double bonds in the molecule in the presence of (B) polymers which contain at least 3 units of a C2-C4-alkylene oxide, and/or polytetrahydrofurans, in a weight ratio (A) : (B) of (95 to 10) : (5 to 90) , and, if required, subsequent elimination of some or all of the groups (see formula II) from the polymerized monomers (a) of the graft polymer with formation of units of the formula (see formula III) The graft polymers can be used as dry and wet strength agents, as fixing agents fear interfering substances and fillers, as retention aids and drainage aids in the production of paper and as promoters in the diketene sizing of paper, board and cardboard, as dispersants for pigments, as starch cationizing agents and as assistants in the production of tissue papers.
Patent CA-2218711-A1 (CA)
Title: Sound attenuator with throat tuner
Inventor: HEROLD ANDREW J
IPC: F01N1/08
Filed: 1996-08-16
Abstract: A double throat tuner including a second conduit (135) concentric to a first conduit (134) which connects the gas flow to a first volume tuning chamber (126) having a first effective volume. The radial difference between the first and second conduits (134, 135) and the length (188) of overlap of the first and second conduits (134, 135) in combination with the effective volume of the first tuning chamber (126) attenuates a preselective frequency of sound. This attenuation is for a specific frequency range in addition to the overall attenuation of the complete system including a plurality of conduits serially connected by a respective chamber.
Patent CA-2219394-A1 (CA)
Title: Pneumatic tire for heavy duty
Inventor: TAKAHASHI OSAMU
IPC: B60C11/13
Filed: 1997-10-24
Abstract: A heavy duty pneumatic tire comprising a plurality of block rows provided on a tread surface, each block row being composed of a plurality of blocks formed by a plurality of main grooves extending in a tire circumferential direction and a plurality of lateral grooves intersecting said main grooves, wherein a narrow block is provided, interposing a sub groove, in a position outside each block of block rows adjacent to an inner side of an outermost main groove in a tire width direction; and wherein a surface of said narrow block is formed to be circular-arc by setting a height of a center part of said narrow block surface in the tire circumferential direction to be equal to that of said tread surface and a height of both end parts of said narrow block surface to be lower than that of said tread surface by 1.5 to 2.5 mm.
Patent CA-2220343-A1 (CA)
Inventor: HOSS MICHAEL J
IPC: H01C1/14
Filed: 1996-05-09
Abstract: Electrical devices comprising a PTC element comprised of a polymer having conductive particles dispersed therein. The PTC element is coated with a conductive layer and has electrodes with a plurality of voids affixed to opposing surfaces. The devices are made by dispersing conductive particles into a polymer to form a polymer PTC composition. The polymer PTC composition is melt-shaped to form a laminar shaped PTC element. First and second opposing surfaces of the PTC element are coated with a conductive layer. The electrodes, characterized by a plurality of voids, are brought into contact with the coated surfaces of the PTC element, and heated while applying pressure to form a laminate. The laminate is then further shaped into a plurality of PTC electrical circuit protection devices.
Patent CA-2225312-A1 (CA)
Inventor: GEISER JENS
IPC: A01F15/14
Filed: 1998-01-30
Abstract: A round baler is equipped with a mechanism for wrapping the bale with twine. In order to keep the end of the twine from coming loose after ejection of the round bale, there is provided a groove shaper which engages the bale and forms a circumferential groove therein in line with the location where the twine dispensing arm of the wrapping mechanism comes to rest at the conclusion of wrapping a bale. The tension of the length of twine extending between the bale and the dispensing arm causes the final wrap or wraps of twine to be pulled into the groove prior to the wrapped twine being severed from a supply roll.
Patent CA-2226095-A1 (CA)
Inventor: HAPPEL JENS
IPC: G01J3/30
Filed: 1996-07-05
Abstract: A method and apparatus for use in the recylcing of post consumer or post industrial waste carpet or Polyamide-6 and/or Polyamide-66 containing non-carpet waste utilizes a hand-held portable device utilizing spectroscopic principles to accurately and quickly identify the material of the waste (carpet). The spectrometer envisioned for this task includes an infrared radiation source for illuminating the waste (carpet) sample, a selector for selecting a predetermined number of discrete wavelengths and a detection system to detect reflected radiation within the discrete wavelengths. The selector can be either a plate with a plurality of slots which positionally correspond to locations in a dispersed light beam according to the predetermined discrete wavelengths or a plurality of filters selected to pass the discrete wavelengths. The selection of the discrete wavelengths can either take place before the carpet sample is irradiated or can take place by selecting the discrete wavelengths from reflected radiation.
Patent CA-2228725-A1 (CA)
Title: Method and device for making textile products
Inventor: GENEVRAY HENRI
IPC: D04B11/08
Filed: 1996-07-26
Abstract: A method for making a textile product from a web of fibres and/or filaments moving in a feed direction. The method comprises a pre-looping step in which the fibres and/or filaments are individually transversely looped relative to the feed direction and optionally transversely stretched, whereafter they pile up in the form of a crimped pseudo-yarn in which the fibres and/or filaments are parallelised. Prior to the pre-looping step, the method comprises a crimping step in which the fibres and/or filaments are crimped with a period and an evolute that are a multiple of the period and evolute of the "crimp" formed in the pre-looping step.
Patent CA-2232988-A1 (CA)
Inventor: FALLIEX PHILIPPE
IPC: G10D13/00
Filed: 1996-09-24
Abstract: A heel-operated device enabling a (musical instrument) drum pedal to be actuated with the heel as well as the whole foot or only the front part of the foot, whereby two pedals may be actuated separately using a single foot. The device consists of a rod (1), a jaw (2), an arcuate member (4) and a base (3) forming an assembly attachable to a drum pedal. When the user depresses the arcuate member using his or her heel, the resulting force actuates the pedal via the rod attached thereto by means of the jaw. The base is designed to concentrate said force on the pedal and support the device. Said device is suitable for operating musical instrument pedals.
Patent CA-2233928-A1 (CA)
Inventor: DANSEREAU JEAN
IPC: A47C7/46
Filed: 1998-04-03
Abstract: The flexible contour wheelchair backrest comprises two side posts, and a flexible backrest body extending between the two side posts.    The flexible backrest body comprises a plurality of transversally extending and vertically spaced apart flexible straps each interconnecting the two side posts and each having an adjustable length, and a plurality of substantially stiff and malleable stays intersecting at least one of the flexible straps at right angle. Each side post defines an elongated curved front face for receiving the flexible backrest body. This elongated curved front face has a forwardly bulging section for inducing a depth dimension to the flexible backrest body to fit the posterior lateral contour of a user's back and thereby provide lateral support to the user's trunk. A mechanism is used to adjust the distance between the forwardly bulging sections of the elongated curved front faces. In operation, the contour of the backrest body can be adapted to the posterior lateral contour of a user's back by adjusting the distance between the forwardly bulging sections, the length of the straps, and the shape of the stays.
Patent CA-2236974-A1 (CA)
Title: Transfer resistant cosmetic compositions
Inventor: SMITH EDWARD DEWEY III
IPC: A61K8/00
Filed: 1996-10-25
Abstract: The present invention is for cosmetic compositions applied to the lips providing significant benefits to the user. These compositions comprise the combination of organosiloxane resins and fluid diorganosiloxane resins with a volatile carrier.
Patent CA-2240098-A1 (CA)
Inventor: DI LORENZO NICK
IPC: E04B7/04
Filed: 1998-06-09
Abstract: The present invention provides a concrete building panel comprising a front panel having an outside face and an inside face; a top panel, a bottom panel and a pair of opposed end panels extending from peripheral edges of the inside face, generally perpendicular thereto; and a plurality of ribs extending between the top panel and the bottom panel. In one embodiment, the top panel, the bottom panel, the pair of opposed end panels and the ribs are spaced from the inside face of the front panel.
Patent CA-2240342-A1 (CA)
Inventor: FREY RUDOLF
IPC: B01D53/77
Filed: 1998-06-11
Abstract: A process for removing sulfur dioxide from flue gas, in particular from flue gas (R) obtained in a waste incineration plant, uses a scrubbing solution including alkali metal hydroxide. The scrubbing solution includes alkali metal sulfate after scrubbing and is subjected to electrodialysis, giving an aqueous alkali metal hydroxide solution and a dilute sulfuric acid.
Patent CA-2241857-A1 (CA)
Inventor: GOLDENBERG ADAM
IPC: A47C1/16
Filed: 1998-06-29
Abstract: A portable cushion for use on a seat at a stadium or the like, which inverts into a pouch for convenient carrying. The portable cushion has a seat cushion, a sleeve which slips over the stadium seat to retain the cushion in place, and in the preferred embodiment a fold-up back cushion and a pouch for the storage of articles suspended beneath the seat cushion when the portable cushion is in place.
Patent CA-2243650-A1 (CA)
Title: Process for preparing purine derivatives
Inventor: ARZENO HUMBERTO B
IPC: C07D473/18
Filed: 1997-01-21
Abstract: Process and novel intermediates for preparing the L-monovaline ester of 2-(2-amino-1,6-dihydro-6-oxo-purin-9-yl)methoxy-1,3-propanediol (see above formula) and its pharmaceutically acceptable salts. The present process and intermediates provide for reduced impurities in the monovaline ester end-product, also eliminating the costly and time consuming purification step and allowing the use of starting materials of lower purity, which, in turn, reduces overall production costs. The products are of value as antiviral agents with improved absorption.