baber/WOPTO huggingface dataset:
Patent CA-2335562-A1 (CA)
Inventor: HAVLINA ROXANA MARIA
IPC: C12P19/34
Filed: 1999-06-22
Abstract: The invention relates to the production of polymers from nucleotidic and/or non-nucleotidic elements (monomers), especially to the production of natural  and/or base-modified and/or sugar-modified and/or oligodesoxyribonucleotides  modified on the phosphate groups and/or oligoribonucleotides and/or non- nucleotidic polymers by way of enzymatic methods in the direction of 3' -> ; 5' using a n RNA ligase.
Patent CA-2341182-A1 (CA)
Title: Sealed capacitive pressure sensors
Inventor: GIANCHANDANI YOGESH B
IPC: G01L9/00
Filed: 1999-08-17
Abstract: A micromachined pressure sensor is formed with a minimum number of masking and processing steps. The structure measures changes in pressure by deflection of structures having capacitive plates external to a sealed cavity so that electrical leads can be readily connected to the plates formed on the structures. The pressure sensor includes a substrate, a base secured to the substrate and a diaphragm secured to the base to define a sealed cavity. A  skirt may extend outwardly from the base above the substrate to form one of the plates of the capacitor with another plate formed on the base. Changes in ambient pressure deflect the skirt toward or away from the electrode on the substrate, changing the effective capacitance between the electrodes.  Electrical connections may be made to the electrode on the skirt and the electrode on the substrate utilizing electrical connectors which are external to the base and thus external to the sealed cavity.
Patent CA-2342946-A1 (CA)
Title: Encapsulation of a device
Inventor: GUENTHER EWALD KARL MICHAEL
IPC: H01L33/00
Filed: 1999-07-09
Abstract: An encapsulation for an electrical device (100) is disclosed. A cap support (130) is provided in the non-active regions (120) of the device (100) to prevent the package from contacting the active components (110) of the device due to mechanical stress induced in the package.
Patent CA-2345460-A1 (CA)
Title: Fluororubber mixtures made fast crosslinkable fluororubbers
Inventor: HARRISON DAVID B
IPC: C08K5/50
Filed: 1999-09-15
Abstract: The present invention relates to fluororubber mixtures containing at least o ne fluororubber having exclusively hydrogen, alkyl and/or alkoxy groups in addition to vinylic end groups. The invention also relates to the use of sai d mixtures in the production of all sorts of shaped articles.
Patent CA-2345939-A1 (CA)
Title: Application of deuterium oxide in producing silicon containing and metal containing materials
Inventor: PAN GUANG
IPC: C03C17/25
Filed: 2001-05-03
Abstract: Deuterium oxide, D2O, also called heavy water, is used for the hydrolysis of silanes and metal compounds. The D2O-hydrolyzed silanes polycondense much easier than H2O-hydrolyzed silanes, resulting in a fast Si-O-Si network build up. The most important feature of using D2O is that the final materials are 100% free of O-H and the residual O-D bond does not have an absorption peak in the wavelength range of 1.0 to 1.8 µm, which is crucial in reducing optical loss at the wavelengths of 1.3 and especially 1.55 µm. O-H free sol-gel materials with low optical loss have been developed based on this process. D2O may be applied in all kinds of hydrolysis-processes, such as the sol-gel process of silanes and metal compounds, the synthesis of polysiloxane, and may be extended to other silica and metal-oxides deposition processes for example, flame hydrolysis deposition (FHD) whenever water is used or O-H bond involved. The concept of replacing O-H bond with O-D bond is applicable to any O-H bond containing materials used in optical based telecommunication.
Patent CA-2346409-A1 (CA)
Title: Electrode treatment method for improving performance in liquid feed fuel cells
Inventor: COLBOW KEVIN MICHAEL
IPC: H01M8/10
Filed: 1999-10-14
Abstract: Fuel cell performance in liquid feed fuel cells with an electrode comprising  a carbonaceous substrate and an electrocatalyst can be increased by oxidizing the carbon substrate, particularly by electrochemical methods in acidic aqueous solution, prior to incorporation of the electrocatalyst. The treated  substrate may thereafter be advantageously impregnated with a proton conducting ionomer to prevent excessive penetration of the applied catalyst into the substrate. The treatment method is particularly effective for direc t methanol fuel cell anodes.
Patent CA-2350038-A1 (CA)
Title: Tackle box with holder for beverage container
Inventor: RUTHERFORD WILLIAM J
IPC: A01K97/06
Filed: 2001-06-08
Abstract: A tackle box has a molded base defining a bottom wall, two upstanding side walls and two upstanding ends walls and an open top with a lid hingedly connected to the top edge for covering the open top in a closed position and movable to an open position to allow access to the hollow interior. A swinging shelf is provided at the open top movable from within the hollow interior to a position to one side to allow stacking of the contents. The base has a portion projecting beyond one end wall so as to provide a generally horizontal surface to one side of the lid with two side by side recesses in the portion shaped and arranged to receive a beverage container such as a can and to support the can against toppling.
Patent CA-2350121-A1 (CA)
Title: Digital projection system for phones and personal digital assistants
Inventor: WILLIAMS JOHN W
IPC: G09G3/20
Filed: 2001-06-11
Abstract: The invention is a projection system for mobile phones, personal communications devices, mobile computers, wearable computers, personal digital assistants (PDA's), desktop phones, and other devices which contain integral display screens, herein after designated as communication devices and portable computing devices. The projector is either integral to the device itself, integral to a charger or stand for the device, or inserts into the device via a card slot. The projector expands the display capability by allowing users to project images which would otherwise be displayed on screens integral to such devices onto a surface with larger dimensions for easier viewability.
Patent CA-2351242-A1 (CA)
Inventor: SHENOI KISHAN
IPC: H04M19/00
Filed: 2001-06-20
Abstract: Systems and methods are described for subscriber loop range extension using negative-impedance repeaters. A method includes: extracting a signal from a digital subscriber loop; then amplifying the signal utilizing a negative impedance converter; and then inserting the signal back into the digital subscriber loop. An apparatus includes a negative impedance converter; a downstream high-pass filter electrically coupled to both i) a digital subscriber loop and ii) the negative impedance converter; and an upstream high-pass filter electrically coupled to both i) the negative impedance converter and ii) the digital subscriber loop.
Patent CA-2352274-A1 (CA)
Title: Oil sand spiral surface mining apparatus
Inventor: PALMA FLORENCIO NETO
IPC: E21B43/00
Filed: 2001-07-04
Abstract: A renewable energy for oil exchange system comprising: A modular computer controlled oil sand spiral surface mining apparatus having a pivoting circular steel building assembled on a ring shaped reinforced concrete foundation at a specifically selected location within a oil sand field. A ring shaped railway steel track at the top to support a modular four-boom crane with a plurality of "Electromagnetic Wheels" chassis that provides 360 degrees of rotation freedom. A servicing helicopter landing platform at the top of the central tower for servicing, assisting with the construction and maintenance of the system. Laboratory and office supervisor space at the top inside the building also provide containment of fumes and air condition inside.      Four diametrically opposed X, Y, Z, precision mining ladles each suspended by four cables from their crane chassis having carbide cutters powered by electric motors to grind the sand and rock to small bits. Four diametrically opposed hoppers trailing the mining ladles with augers to provide sand feed control. The four hoppers download the oil sand into a main giant size stainless steel bowl for separation of the bitumen by steam provided by four Hydrogen Rotary Generator and also having make-up electric heaters for precise temperature control. The partly washed sand slur is further crushed and press filtered by the Hydrogen Oil Sand Extraction Apparatus and returned back to the bitumen separation bowl respective ports, after being separated into bitumen and fine sand. Four diametrically opposed sand tailing spreaders for depositing the clean sand into reinforced sand bags back from where it was mined. The bitumen is collected by a surface skimmer and shipped out by pipeline to a refinery. The modular cross suspension bridge like structure overhead crane provides a means to progressively increase the radius of operation by adding more modules and to mine while depositing the clean sand tailings opposite, back to the site being mined after having extracted the bitumen and fine tailings with rotary crushers and progressively finer filtering presses for their containment into large plastic bags to prevent contamination of the clean sand. Electric power and hydrogen fuel for the operation requirements is provided by Electromagnetic Propellers Modules anchored in nearby river current intensifiers built from washed sand, piped out and mixed with concrete into inflatable molds anchored to the surgically adapted river bottom. After the area has been mined the system can be disassembled, relocated and reassembled elsewhere, including other types of mining operations.
Patent CA-2353725-A1 (CA)
Title: Spiral wound pipe and a method for manufacturing the same
Inventor: HOLSO EINO
IPC: B29C48/12
Filed: 1999-11-29
Abstract: The invention relates to a spirally wound pipe and to a method and arrangeme nt for producing it. The method according to the invention is characterized by the following steps: a flexible, elongate profile (2) is fed through an extrusion station (20) in which the profile is coated with an outer layer (3 ) of a weldable thermoplastic material along its entire periphery (4); after which the profile (2) is wound in spiral turns (5, 6) to form a pipe (1) abo ut a rotating drum (30) while the said outer layer (3) from the extrusion stati on maintains such a temperature that the thermoplastic material is weldable, wi th the profile (2) in the last-wound spiral turn (5) being welded to the profil e (2) in the next spiral turn (6) in such a way that a weld seam (7) is formed  along the whole of the adjoining edge surfaces (8) of the profiles (2).</SDO AB>
Patent CA-2354448-A1 (CA)
Title: Implant for implantation in humans or animals comprising flexible, thread-shaped elements
Inventor: EDBERG BENGT
IPC: A61L27/00
Filed: 1999-11-25
Abstract: The present invention relates to a porous, in humans or animals biodegradabl e, biocompatible implant for implantation in humans or animals, which implant comprises flexible, thread-shaped elements. The thread-shaped elements consi st of a number of thread bundles (1) containing up to several thousand threads (2) which in turn contain 50 to 500 filaments with a combined density of 5 t o 120 tex. The thread bundles (1) have a twist of 0 to 150 revolutions per met re and are held together by weft threads (3) with a distribution density of a f ew threads per cm up to roughly 100 threads per cm calculated in the longitudin al direction of the thread-shaped element.
Patent CA-2358370-A1 (CA)
Title: Dual hardness die
Inventor: KAREZ PAVEL
IPC: C21D1/10
Filed: 2001-10-09
Abstract: Generally, a rotary cutting die of the present invention for use in combination with an anvil roll to cut sheet material has a generally cylindrical body extending along a central axis between opposite first and second ends. The body has a Rockwell C scale hardness less than about 50. A cutting blade extends outward from the body to a tip adapted for cutting sheet material passing between the die and the anvil roll. First and second circular bearing surfaces are coaxially positioned adjacent one of the first and second ends of the body for engaging the anvil roll to maintain a predetermined spacing between the cutting blade tip and the anvil roll.      The first and second bearing surfaces have a Rockwell C scale hardness greater than about 50.
Patent CA-2358822-A1 (CA)
Inventor: SELBY WILLIAM J
IPC: F16L11/20
Filed: 2001-10-15
Abstract: A safety hose system for connecting an inlet connector of a washing machine to an outlet connector of a water supply. The safety hose system comprises an inner hose unit engaged with an outside hose unit. The inner hose unit comprises an inner hose having first and second end portions and a first channel to transport the flow of water from the water supply to the washing machine. The inner hose unit further comprises first and second fittings engaged with the first and second end portions of the inner hose. The outside hose unit comprising an outside hose having first and second end portions. The outside hose unit further comprises first and second connectors engaged with the outside hose.  The outside hose unit is compressed to provide a positively biased force upon the first and second fittings to provide a sealed channel about the inner hose and to allow the first and second connectors to be engaged with the inlet connector of the washing machine and the outlet connector of the water supply, respectively. Upon fracture of the inner hose the water flows into the sealed channel.
Patent CA-2363492-A1 (CA)
Title: Method of optimizing the design and operation of a reduction process for iron-containing charge materials
Inventor: GOKLER GERALD
IPC: C21B13/00
Filed: 2000-02-23
Abstract: A description is given of a method of optimizing the design and operation of a reduction process for iron-containing charge materials (3), preferably in lump form, in a reduction shaft (1) to which reduction gas (9) is fed, for example from a fusion gasifier (6), with a reduced product (13), for example iron sponge, being taken from the reduction shaft (1) for the production of liquid pig iron or liquid primary steel products, in which method the reduction process is described by means of a mathematical-physical-chemical process model, the reduction shaft (1) is modelled multi-dimensionally, in particular three-dimensionally, and the process model is numerically evaluated and the results of the evaluation, obtained as multi-dimensional, in particular spatial, distributions of physical or chemical variables, are taken into account for the reduction process. This allows the reduction process to be quantitatively assessed in the entire reduction shaft and, as a result, the reduction process can be optimized.
Patent CA-2363547-A1 (CA)
Inventor: VAN WOUDENBERG ROEL
IPC: G11B7/24097
Filed: 2000-11-27
Abstract: La présente invention concerne un support d'enregistrement optique comportant une piste pour contenir les données codées sous forme de marques optiques. Un paramètre de la piste présente une variation périodique permettant de produire un signal variable lorsque la piste est scannée, par exemple une variation du centre d'une pré-rainure appelée oscillation. De plus, cette piste comprend des éléments de référence, par exemple des en-têtes, qui interrompent la variation périodique. La phase de la variation périodique suivant les éléments de référence est associée à une propriété du support d'enregistrement pour commander le balayage de ce dernier en fonction de ladite propriété. Particulièrement, cette phase peut indiquer si la base de la pré-rainure est plus proche ou non du côté de pénétration du faisceau de balayage du disque. En outre, cette invention concerne un dispositif de balayage comportant un détecteur qui détecte ladite phase sur la base du signal variable. Ce dispositif adapte son moyen de commande de balayage en fonction de la propriété indiquée.
Patent CA-2366287-A1 (CA)
Title: Surface cutting apparatus for hot-rolled steel products
Inventor: SHIMIZU MASUTO
IPC: B23C3/13
Filed: 1996-07-23
Abstract: In cutting the top and bottom surfaces of a hot-rolled steel sheet by the rotation of milling cutters holding the sheet therebetween in the thickness direction of the sheet in the running process of the hot-rolled sheet, the cutting resistance is determined by the cutting conditions including the type of hot-rolled sheet, the temperature in cutting, and the cut depth is controlled by the adjustment of cut depth, and cutting is performed by making the tension produced on the hot-rolled sheet by the cutting resistance lower than the breaking strength of the joint portion to prevent the breakage of hot-rolled sheet.   For each milling cutter there is a chip discharge means for removing chips produced by the cutting action of the milling cutter or the steel sheet.
Patent CA-2366727-A1 (CA)
Title: Multi purpose fish-hook case including fishline binding device
Inventor: CHUNG KWANG-SUK
IPC: A01K97/06
Filed: 2000-04-03
Abstract: A multi purpose fish-hook case with fishline binding device is disclosed. The fish-hook case (1), used for keeping a variety of fish-hook therein, of this invention consists of a main body (10) provided with a lid (15). This lid (15) is designed to be elastically opened around its hinged portion due to a spring force through a one-touch opening process when a user presses down a first actuation button (11) provided at a predetermined position of the lid's central portion. This lid (11) also has a window (16) at a predetermined position, thus allowing the user to see the contents of the case (1). A steel plate (23) is fixed to a predetermined position at one side within the main body (10) of the case (1). At least one fish-hook container (20, 20a) is magnetically and removably attached to the steel plate (23) due to its bottom magnet (22) and designed to regularly and inclinedly receive a variety of fish-hooks therein. An accessory case (30) is fixed to the other side within the main body (10) of the fish-hook case (1), with a cover (33) hinged to the accessory case (30) by a hinge (35) and elastically opened by a spring (36) when the user operates a second button (34). The accessory case (30) has a plurality of cells (32) separately receiving a variety of fishing accessories therein. A fishline binding device receiving cell is formed at a predetermined portion within the main body (10), with a fishline binding device (19) used for tying a desired fishline to a desired fish-hook and received within the fishline binding device receiving cell. The multi purpose fish-hook case of this invention thus allows a user to more easily, rapidly and simply tie a fishline to a fish-hook and to easily and simply keep such fish-hooks with the fishlines within the fish-hook container. The multi purpose fish-hook case of this invention also has a means for measuring the length and weight of the fish. This fish-hook case may be also provided with a radio, a flashlight and/or a gas lighter.
Patent CA-2368839-A1 (CA)
Title: D-form polypeptide which induces immune tolerance and methods of use
Inventor: NOZAWA IWAO
IPC: A61K38/095
Filed: 2000-04-20
Abstract: Methods and compositions useful in inhibiting integrin-associated diseases a re provided. The compositions contain a polypeptide having one or more D-amino acids that inhibit integrin binding to its associated binding polypeptide. T he compositions include retro-inverso polypeptides.
Patent CA-2368895-A1 (CA)
Title: Fuel cell with cooling system based on direct injection of liquid water
Inventor: MAZZUCCHELLI GABRIELE
IPC: H01M8/04
Filed: 2000-04-10
Abstract: The invention relates to a stack of polymeric membrane fuel cells, wherein t he removal of the heat generated by the production of electric energy and the humidification of the ion exchange membranes used as electrolytes are obtain ed by the direct injection of a water flow coming from a single hydraulic circuit. The stack thus produced is more compact, less expensive and easier to operate.
Patent CA-2370006-A1 (CA)
Title: Composite landing collar for cementing operation
Inventor: GOODSON JIM
IPC: E21B33/16
Filed: 2002-01-28
Abstract: A composite landing collar is disclosed which is preferably adhesive bonded to the liner string using a high temperature epoxy. The spacing during bonding is maintained within dimensional limits using spacers.  The body features a bi-directional material, with an appropriate ratio in the warp and fills directions, for about a quarter of the wall thickness. A unidirectional material with the fibers axially aligned aids in reduction of thermal stresses in the thick wall during curing, as well as reducing shear stress concentration along the adhesive bonding interface.
Patent CA-2370985-A1 (CA)
Inventor: OLSON STANLEY W
IPC: H01R12/50
Filed: 2002-02-06
Abstract: An electrical connector has a base defining a plurality of aperture spaces therein. A plurality of contacts are received and secured within the aperture spaces, and include signal contacts and ground contacts. In addition, a plurality of ground shields are received and secured within the aperture spaces. The ground shields are positioned to shield selected ones of the signal contacts from noise and/or cross-talk generated by other signal contacts within the base. Each ground shield has an electrical contact site at which the ground shield is in physical and electrical contact with a ground contact. The electrical contact site is flexible.
Patent CA-2372476-A1 (CA)
Title: Cover device for assembly recesses on roof-drip mouldings of motor vehicle bodies
Inventor: PIRIA MAURIZIO
IPC: B60R13/07
Filed: 2000-04-18
Abstract: The invention relates to a cover device for sealing assembly recesses on roo f- drip mouldings of motor vehicle bodies that run in the longitudinal directio n of the vehicle. The device consists of a cover holder (9) that can be placed  in the roof-drip moulding (1) in the area of the recess and a cover (8), whi ch is mounted in such a way that it can pivot crosswise to the longitudinal direction of the roof-drip moulding, for sealing the recess (5). Said cover holder (9) also has a recess (16) in its floor part (10). Mountings (17) are  moulded on on both sides at one end of the recess (16) and have bearing journals (18) that face each other and that engage in corresponding, lateral  bearing holes (19) that are provided at one end of the cover (8), in such a way that they can expand elastically. A support (20) on which the cover (8) rests in its closed position is located at the other end of the recess (16).  If necessary, this support (20) can be provided with detent elements (21) which engage in corresponding partner detent elements (22) underneath the cover (8) in order to secure the cover in its closing position. The part of the cover (8) that projects over the bearing holes (19) is configured with a  pressure plate (25) which rises slightly above the roof-drip moulding (1). When the pressureplate (25) is pushed downwards in the direction of arrow (P), the detent elements (21) are released from the partner detent elements (22) so that the cover (8) can easily be pivoted up into the opening positio n, hereby exposing the recess (5) for attaching a luggage rack.
Patent CA-2374593-A1 (CA)
Title: Improved mass fuel combustion system
Inventor: BARLOW JAMES L
IPC: F23H11/18
Filed: 2000-05-20
Abstract: An improved mass fuel combustion system can be designed in a variety of embodiments and alternatives, including designs which include independent gas feeds, independent gas pulsing, independently controllable vibration systems and an overall control system which can coordinate a host of parameters for optimal combustion. One design includes overlapping grate elements (50) through which combustion gas is introduced and may include apertures to introduce a pulsed mix gas as well as a separate temperature control gas. Efficient poppet designs (44) can be used to provide an economical and efficient combustion system.