baber/WOPTO huggingface dataset:
Patent CA-2217033-A1 (CA)
Title: Cordless apparatus for operating blinds and shades
Inventor: JACOBSON JEFF A
IPC: E06B9/30
Filed: 1995-11-30
Abstract: Apparatus for cordless operation of blinds (10). A pair of actuators (14, 15) are in spiral engagement with a spiral wand (13) coupled to rail mechanism (11) from which the blinds (10) depend. One of the actuators (14 or 15) rotates in one direction and the other actuators (14 or 15) rotate in an opposite direction. Raising or lowering selective ones of the actuators (14, 15) operates the blinds (10).
Patent CA-2221518-A1 (CA)
Title: Process to increase the production of clavam antibiotics
Inventor: PARADKAR ASHISH SUDHAKAR
IPC: C12N15/54
Filed: 1996-06-06
Abstract: A process for increasing the amount of clavam produced by an organism having both a clavam pathway or a portion thereof and a cephalosporin pathway or a portion thereof by interfering with the conversion of L-lysine to L-.alpha.-aminoadipic acid in the cephalosporin pathway. Plasmids containing a defective LAT (lysine amino transferase) gene and organisms containing such plasmids are also provided.
Patent CA-2222042-A1 (CA)
Inventor: LALLIER JEAN-PIERRE
IPC: C09D9/00
Filed: 1997-12-05
Abstract: Composition for stripping paints, varnishes or lacquers from a substrate consists of 1-100pts.wt. mixture of benzoic acid and at least one aromatic solvent selected from benzaldehyde, xylene, toluene and anisol (A); and 99-0pts.wt. water (B).
Patent CA-2229514-A1 (CA)
Inventor: ARNTZ FRIEDRICH OTTOKAR WILHEL
IPC: F03G3/02
Filed: 1998-04-24
Abstract: The object of this invention is to have a suitable ROTOR and SHAFT ASSEMBLY, driven by a suitable prime mover motor, wherein a certain, that is to say a somewhat LESS THAN 180 o of rotational ARC SEGMENT of said ROTOR would have a substantially larger Diameter THAN THE REMAINDER SEGMENT OF ROTOR in CONSTANT and INTENDED IMBALANCE STATUS wherein individual DIAMETER-MODULATING, articulating mechanism components are activated by positively engaged rolling or slliding control contact transfer means the position of which is in turn initiated and maintained by having aforesaid ROTOR SHAFT be appropriately surrounded in NON-TOUCHING fashion by a special independently mounted PROGRAM CONTROL SIGNAL IMPULSE CONTOUR ACTIVATION RING STRUCTURE component, activating ARTICULATION of aforesaid DIAMETER-MODULATING MECHANISMS; as can be seen in the following specification.
Patent CA-2231117-A1 (CA)
Title: Two stage flush control valve assembly
Inventor: JOHNSON DWIGHT N
IPC: F16K21/16
Filed: 1998-03-04
Abstract: A control valve assembly for flushing a sanitary fixture includes a burst valve for supplying flush water flow at the beginning of a flush cycle and an independently controlled bypass valve for providing trap reseal flow after the burst valve closes. The burst valve includes a timing sleeve cooperating with a lifting piston to define a timing chamber communicating with inlet pressure through an orifice. A piston collar cooperates with the lifting piston to define the bypass valve. A lifting chamber defined between the body and the lifting piston communicates with the outlet through a metering valve assembly. Actuation of the metering valve assembly empties the lifting chamber and lifts the timing sleeve, opening the burst valve. The burst valve is closed when the timing chamber fills at a rate controlled by the orifice. The bypass valve is maintained open by pressure differential across the bypass valve to supply trap reseal flow until the metering valve assembly recloses.
Patent CA-2233766-A1 (CA)
Inventor: PIBER EARL T
IPC: H01H9/34
Filed: 1998-03-31
Abstract: A baffle for use in a circuit breaker includes a first baffle mechanism and a second baffle mechanism. Each of the first and second baffle mechanisms includes a base, a plurality of elongated members supported by the base, and cross-pins or other elongated members for supporting the base of one of the baffle mechanisms substantially parallel to the base of the other baffle mechanism. The elongated members of the first and second baffle mechanisms are interleaved to form a labyrinth.
Patent CA-2235247-A1 (CA)
Title: Holographic high contrast viewing screen embedded in a liquid crystal display
Inventor: AYE TIN M
IPC: G02B5/32
Filed: 1996-10-18
Abstract: Systems and methods for shaping light from a liquid crystal display such that the field of view, including the horizontal and vertical extent, can be determined, in advance by the manufacturer. An LCD device includes a first substrate (10) having a first electrode (20); a light shaping holographic surface relief diffuser (30) connected to said first electrode and having a first orientation and a first refractive index; a liquid crystal (70) adjacent said holographic diffuser, an alignment layer (60) adjacent said liquid crystal and having a second orientation that is substantially orthogonal to said first orientation; and a second substrate (10) having a second electrode (80) connected to said alignment layer, the liquid crystal having a second refractive index that is substantially equal to the first refractive index in the absence of a liquid crystal driving voltage, and varies as a function of such driving voltage.
Patent CA-2236515-A1 (CA)
Title: Floating transceiver assignment for cellular radio
Inventor: WARD CHRISTOPHER
IPC: H04W16/06
Filed: 1998-05-01
Abstract: A frequency allocation method for allocating carrier frequencies to a plurality of fixed beams in a cellular radio based transceiver station comprises maintaining a reserve pool of carrier frequencies (1000), such that any available carrier frequency can be allocated to any fixed beam at any one time in order to deal with capacity demands from mobile stations within an area covered by a fixed beam (1002). A frequency allocation algorithm operates such as to allow a plurality of transceivers to float anywhere across a plurality of fixed directional beams. More carrier frequencies can be added to a beam to deal with increased mobile station capacity demand. The occupancy of channels on the carrier frequencies is continuously monitored, and the number of carrier frequencies perbeam is continuously monitored (1001, 1003), with the object of releasing unusedcarrier frequencies to a reserve pool of carrier frequencies (1005), allowing redeployment of unused carrier frequencies to other beams where necessary (1104). Carrier frequencies are periodically "groomed" by assessing the number of vacant channels on the carrier, and reallocating any un-utilized vacant channels to other carrier frequencies. The grooming process can be constrained to operate during natural gaps in speech, to avoid channel degradation.
Patent CA-2238266-A1 (CA)
Inventor: SCHULZE GUNTER LOTHAR
IPC: B60R16/02
Filed: 1996-11-21
Abstract: The invention relates to means for guided, unidirectional or bi-directional transmission of electrical signals between a primary module (2) and a secondary module (3), incorporated in a vehicle steering wheel, by way of a two-wire line (18a, 18b; 18c, 18d). To be able to separate the primary module (2) and the secondary module (3), the primary two-wire line (18a, 18b) and the secondary two-wire line (18c, 18d) are terminated by a primary (12) or a secondary winding element (14) respectively which can be coupled to each other in the manner of a transformer by way of an air-gap (18; 18'). A primary shell-type core (11) holds the primary winding element (12), has a central opening (20) for the passage of a steering column supporting the steering wheel and is substantially rotationally symmetrical to the axis (A) of symmetry of this central opening (20).  The primary winding element (12) and the secondary winding element (14) are in the form of a toroid, the secondary winding element (14) is concentric to the primary winding element (12), and one receiving chamber (15) formed by the primary shell-type cores (11) and the secondary shell-type cores (13) holds the two winding elements (12,14).
Patent CA-2238289-A1 (CA)
Title: Biocontrol agent and fungicide for blackleg disease
Inventor: KHARBANDA PREM
IPC: A01N63/25
Filed: 1998-05-20
Abstract: A strain of Bacillus polymyxa, designated as PKB1, has a highly inhibitory effect against Leptosphaeria maculans, the causal agent of blackleg disease of canola, as well as other economically important disease-causing fungi including Sclerotinia sclerotiorum, Rhizoctonia solani, Fusarium avenaceum and Alternaria brassicae. The life cycle of the bacterium includes a growth stage and then a dormant spore stage that may be triggered by deficiency of an essential nutrient or by increased cell density. The fungicidal activity is associated with the spores. The active component has been extracted and purified from the spores. The pure fraction has been characterized as containing two branched cyclic peptide antibiotics of eight amino acids. A B. polymyxa PKB 1 cell suspension significantly reduced pycnidiospore germination and germ tube length of L. maculans.
Patent CA-2238513-A1 (CA)
Inventor: MOLENDA ROBERT P
IPC: B42D5/00
Filed: 1996-11-13
Abstract: A pad (10) comprising a plurality of flexible sheets (11) in a stack, and padding means for releasably adhering parts of the major surfaces of adjacent sheets in the stack together to maintain the sheets in the stack. That padding means is provided in that at least some of said sheets having patterns of coadhesive (18a, 18b) coated on their major surfaces, which patterns of coadhesive are adhered to patterns of coadhesive on adjacent sheets in the stack and releasably adhere parts of the major surfaces of adjacent sheets (11) in the stack together in surface to surface relationship until the patterns of coadhesive (18a, 18b) are peeled apart.
Patent CA-2241489-A1 (CA)
Inventor: PANESAR SATWINDER SINGH
IPC: A23F5/28
Filed: 1998-06-26
Abstract: The present invention is directed to a high concentration aromatized liquid coffee extract having a soluble solids concentration greater than 55 % which is to be used in the making of liquid coffee products. Said liquid coffee products possess greater R&G characterisitics and improved shelf-life as compared to comparable liquid coffee and instant soluble coffee products available to the consumer. The liquid coffee products of the present invention may be in the formof a liquid, a gel or foam, or in a frozen state having ice cream-like texture.
Patent CA-2241965-A1 (CA)
Title: Snowmobile drive track for travelling on icy and hardened snow surfaces
Inventor: COURTEMANCHE DENIS
IPC: B62D55/27
Filed: 1998-06-30
Abstract: A snowmobile drive track for travelling on various surfaces including icy surfaces, hardened snow surfaces and semi-hardened surfaces comprises an endless body having, on its ground engaging outer side, projecting profiles having peaks of different height. The first highest peaks bear on icy surfaces, while, on hardened snow surfaces, the second highest peaks also engage the ground; on semi-hardened snow surfaces, all peaks engage the ground.
Patent CA-2242218-A1 (CA)
Title: Process for preparing cyclobutane-1,2-dicarboxylic esters
Inventor: BRUNNER ANDREAS
IPC: B01J31/12
Filed: 1998-06-30
Abstract: Cyclobutane-1,2-dicarboxylic esters of the formula:  (see formula I) in which R1 is a Cl-8-alkyl group, an optionally substituted mono- or bicyclic cycloaliphatic group having 3 to 10 ring carbon atoms, an optionally substituted aryl or arylalkyl group or an optionally substituted saturated heterocyclic group and R2 is either C1-4-alkyl or both radicals R2 together form a group of the formula -(CH2)n- (n = 2 to 4), are prepared from the corresponding maleic or fumaric ester and ketene acetal in the presence of a Lewis acid and a sterically hindered base. The reaction is stereoselective when an optically active maleic or fumaric ester is employed.  The cyclobutane-1,2-dicarboxylic esters (I), in particular those having trans configuration, are intermediates in the synthesis of pharmaceutically active compounds.
Patent CA-2244026-A1 (CA)
Inventor: SWEENEY GERALD W
IPC: B65D81/20
Filed: 1994-12-14
Abstract: A reusable, evacuable enclosure comprising a bag (4) with an opening (12) in which to place articles, such as clothing or linen, and a one-way valve in a surface of the bag.  The articles may be placed in the bag and sealed from the surrounding environment by placing a seal (8) across the opening.  The excess air in the bag may then be removed by placing a cylindrical attachment of a household vacuum cleaner over the one-way valve (6).  Once the excess air is extracted, a cap is placed over the valve to ensure a permanent seal.          Removal of excess air and moisture from the bag protects the stored article against insects, bacteria, mildew, corrosion, etc.  A variety of seals for closing the bag are described.
Patent CA-2244813-A1 (CA)
Title: Chaise pivotante et basculante
Inventor: HIBBERD RONALD CHARLES
IPC: A47C9/02
Filed: 1997-01-21
Abstract: Un chaise (1) comprend un siège (2) couplé à un tube de montage (3) présentant un axe de rotation (7), une base (4) et un raccord de tube permettant le pivotement dudit tube (3) par rapport à la base (4) autour de l'axe de rotation (7), et permettant l'inclinaison du tube (3) par rapport à une orientation verticale de la chaise (1) à divers degrés dans la direction du siège (4), et dans des directions latérales, empêchant le tube (3) de basculer dans une trop grande mesure dans la direction arrière du siège (2). Le raccord du tube comprend un support à ressort permettant la rotation et le basculement, il comprend une came montée sur le tube (3) limitant le degré de basculement selon la forme de la came.
Patent CA-2245266-A1 (CA)
Title: Pipetting robot with an improved temperature-control apparatus
Inventor: HARTZ DETLEF
IPC: B01L3/00
Filed: 1998-08-07
Abstract: A temperature-control apparatus in the form of a plate is described for pipetting robots for holding microtitration plates, which have a spiral tube for a temperature-control medium and which apparatus is divided into at least two segments for holding microtitration plates.
Patent CA-2245419-A1 (CA)
Title: Device for inspection of water pipelines and method
Inventor: WINSLOW JENS C B
IPC: G01M3/00
Filed: 1998-08-20
Abstract: A device is taught for inspecting the integrity of water distribution pipelines. The device is constructed of housing units, for housing inspection circuitry. The housing units are connected by flexible connectors which permit the units to move out of axial alignment to pass bends. In some embodiments, communication ports are provided between the units. As such, the device is able to negotiate bends and pass through openings of reduced size in the pipeline. The device can be used with various inspection technologies including remote field eddy current inspection technology. A method for inspecting the integrity of a water pipeline system is disclosed wherein water hydrants can be used to access the system.
Patent CA-2247418-A1 (CA)
Title: Antenna for a radio telecommunications device
Inventor: QI YIHONG
IPC: H01Q1/10
Filed: 1997-03-04
Abstract: A radio telecommunications antenna includes a telescoping antenna portion for substantially receiving an electromagnetic signal. The telescoping portion is attached by an antenna mast for conducting the electromagnetic signal. A  dielectric spacer and an inductor are in electrical contact with the antenna mast. An RF connector is in electrical contact with the dielectric spacer, opposite the antenna mast, so as to form a capacitor. The RF connector is also in electrical contact with the inductor so that the capacitor and the inductor form an LC circuit with values selected to provide a predetermined impedance match with the remainder of the antenna.
Patent CA-2250393-A1 (CA)
Title: Disk for the skis of a snowmobile
Inventor: LEMAY SERGE
IPC: B62B17/02
Filed: 1998-11-04
Abstract: A front ski assembly for mounting on a steering column of a snowmobile is provided. The front ski assembly includes a ski, a disk-shaped rigid wheel and a bearing assembly to mount the wheel on the steering column. A slit is made in the ski along its longitudinal direction, beside the lower portion of the steering column. A runner shoe is fixed on the bottom surface of the ski and projects from the same. The wheel is sized so it partially extends in the slit when mounted on the steering column, and projects from the bottom surface of the ski further than the runner shoe. The wheel therefore allows to better control the snowmobile when circulating on hard surfaces. The invention also concerns a snowmobile provided with two such front ski assemblies and a kit to allow manufacturers, resellers or owners to install a wheel assembly on a snowmobile.
Patent CA-2250611-A1 (CA)
Title: Crop material processor
Inventor: HRUSKA KEVIN
IPC: A01K5/00
Filed: 1998-10-15
Abstract: A crop material processor for disintegrating baled crop material for controlling the crop material for disintegration while preventing crop material from wrapping around the rollers and causing the crop material processor to jam. The crop material processor comprises a container, a disintegrator, a discharge opening and means for manipulating the crop material for disintegration by the disintegrator. The container, receives and contains the crop material. The disintegrator comprises a flail roller and at least one flail. The flail roller is rotatable around its own longitudinal axis. Each of the flails radially extend from the flail roller. The discharge opening is at the bottom of one of the side walls. The manipulation means comprises curved and angled paddles that rotate the crop material without substantially breaking the crop material apart. A second container and spreading means enables a second type of crop material to be discharged on top of the first type of crop material, therefore creating a more palatable and more nutritious feed mixture.
Patent CA-2250876-A1 (CA)
Inventor: TONG XIAMIN
IPC: F24F1/0067
Filed: 1997-03-31
Abstract: An air-conditioner with high-efficiency differential cool-valley pipes, which include J-type pipes and a low-pressure circulating pump, has a first arc heat-exchanger which is formed by multiple-lyer ladder-shaped corrugated plates and multiple-layer arc J-type pipes stacked alternatively, and a second arc heat-exchanger which is formed by multiple-layer arc J-type pipes and multiple-layer wave-shaped film-type evaporation face stracked alternatively. A low pressure pump is connected between the first arc heat-exchanger and the second arc heat-exchanger through pipelines. The air-conditioner solves the problems that the conventional air-conditioner consumes high energy, quality of the air in the room is low and the use of CFCS is confined.
Patent CA-2252392-A1 (CA)
Inventor: HELLEBRAND HANS
IPC: H01L41/083
Filed: 1997-03-10
Abstract: A monolithic piezoelectric actuator is made of stoichiometric PZT ceramics (2) with low A-site doping and silver- and palladium-containing electrode layers (1). The piezoelectric actuator has improved mechanical resistance and good piezoelectric properties. The disclosed production process leads to optimum grain sizes and optimum piezoelectric properties, independently from B-site doping, and makes it possible to produce multilayer piezoelectric actuators which can be used at high temperatures of up to 150 °C.
Patent CA-2253861-A1 (CA)
Title: Fermenter
Inventor: MARIN FRANCESCO
IPC: C12G1/02
Filed: 1997-11-17
Abstract: The present invention relates to a fermenter consisting of a vat provided internally with a diaphragm designed to retain the gas bubbles produced by fermentation and release them when they have reached a large size. The diaphragm consists of a concave surface underneath which the rising bubbles are temporarily collected and continue to rise as soon as they flow out from the diaphragm full of gas. In this way the small bubbles which rise up combine together to form others which are larger and able to create strong currents which continuously remix the floating marc and in this way make it possible to avoid or, at least greatly limit, solidification of the cap, keeping it constantly fluid.
Patent CA-2256150-A1 (CA)
Inventor: MAY ANTON
IPC: B23Q11/12
Filed: 1998-12-22
Abstract: A plurality of lubricant dispensers with respective microprocessor controllers are connected to a central microcomputer and can count up the number of revolutions of the respective spindle so that local lubrication at different sites of a machine will satisfy the site requirement even if the machine operation and lubrication have been interrupted. The controller of the dispenser includes a data store responsive to the dispensing time which is reset when a new reservoir is hooked up.
Patent CA-2257191-A1 (CA)
Title: Method to detect hcv specific nucleic acids
Inventor: STRUMIA CLAUDIA
IPC: C12Q1/70
Filed: 1997-06-03
Abstract: A process to detect hepatitis C virus (HCV) specific nucleic acids comprising the steps of: (a) reverse transcribing the viral RNA by means of a primer having specified sequences; (b) amplifying by a single polymerase chain reaction (PCR) with a specific primer; wherein the Mg++/Taq polymerase ratio in the reaction mix is of approx. 100 nmoles/enzyme unit; (c) revealing the amplified product by means of the DEIA method using a specific probe.
Patent CA-2259120-A1 (CA)
Inventor: COVELEY MICHAEL
IPC: G06Q20/00
Filed: 1997-03-24
Abstract: A wireless wide area communication system (150) comprises at least one electronic fund transfer/point-of-sale (EFT/POS) device (152) generating an EFT/POS financial transaction data message in response to a financial transaction request. A wireless communications converter (154) in communication with the at least one EFT/POS device receives the EFT/POS  financial transaction data message. The wireless communications converter converts the EFT/POS financial transaction data message into a form suitable for transmission over a radio frequency wireless wide area network (wireless WAN) (156). The wireless WAN is connected to at least one financial institution (160) by way of a gateway (158) and a land line connection (162) and conveys the EFT/POS financial transaction data message received from the wireless communications converter to the at least one financial institution.
Patent CA-2259392-A1 (CA)
Title: Mecanisme d'evacuation sensible a la pression pour airbag
Inventor: SMITH STUART JAMES
IPC: B60R21/16
Filed: 1997-04-22
Abstract: L'invention concerne un airbag (10) pour système de protection des passagers, à mécanisme d'évacuation permettant au gaz de gonflage de s'échapper de l'airbag, uniquement après qu'une pression de gonflage prédéterminée soit atteinte. Le mécanisme comprend une ouverture (30) et un élément d'étanchéité (24) qui la recouvre pour empêcher la sortie du gaz de gonflage. L'élément d'étanchéité a une partie cassable (40) restant intacte au-dessous du seuil de pression prédéterminé, mais qui s'ouvre en se rompant lorsque la pression de gonflage prédéterminée est dépassée.