baber/WOPTO huggingface dataset:
Patent CA-2261217-A1 (CA)
Inventor: WANG LIXIAO
IPC: A61F2/958
Filed: 1997-07-11
Abstract: Balloon especially useful for dilatation of gastrointestinal lesions has a burst pressure of at least 9 atmospheres, a diameter at 3 atmospheres of about 5 mm or more, and an average compliance over the range of from 3 atmospheres to burst of at least 3 % per atmosphere. Such balloons and balloons having other combinations of burst strength, compliance and diameter may be prepared by a method wherein a tubing of a thermoplastic polymer material is radially expanded under a first elevated pressure at an elevated temperature to form the balloon at a first diameter and then annealing the balloon at a second elevated temperature and a second pressure less than the first elevated pressure for a time sufficient to shrink the formed balloon to a second diameter less than the first diameter. The thermoplastic polymer material may be a block copolymer material. Catheters bearing balloons prepared by this method have low withdrawal force requirements, especially catheters used in through-the-scope applications.
Patent CA-2261508-A1 (CA)
Inventor: ROUILLARD ROGER
IPC: E01C19/40
Filed: 1999-02-12
Abstract: A vibrating screed for surfacing concrete comprises a surfacing blade, a pair of handle assemblies mounted to said blade, a motor, vibration causing mechanism and a transmission connecting the motor to the vibration causing mechanism such that, when the motor is in operation it causes the transmission to rotate with the transmission being adapted to impart a vibratory motion to the blade. The transmission includes a flexible joint having an angled configuration to allow the motor to be mounted rearwardly of a leading edge of the blade. Each handle assembly comprises a main elongated tubular member and a handle mounted at a proximal end thereof. The handle includes a first tubular element mounted around the main tubular member, a second tubular element extending sideways from the first element and a third tubular element extending around the second element, with a grip member being mounted to the third element. The first element is capable of relative rotatable and translational displacement with respect to the main tubular member, and the third element and grip member are capable of rotational displacement relative to the second element. Clamps are provided for securing the first and third tubular elements in selected positions relative to the main tubular member and to the second tubular element, respectively.
Patent CA-2261811-A1 (CA)
Title: Methods for mitigating calcification and improving durability in glutaraldehyde-fixed bioprostheses and articles manufactured by such methods
Inventor: YANG JUN
IPC: A61L27/00
Filed: 1997-06-19
Abstract: Methods for treating glutaraldehyde-fixed collagenous tissues to mitigate their propensity for subsequent calcification and to improve durability. Collagenous tissues which have been harvested and cross-linked by glutaraldehyde are exposed to a carboxyl activating agent to convert the free carboxyl (COOH) groups of the collagen molecules to activated carboxyl moieties (e.g., o-acylisourea). Thereafter, the collagenous tissue is exposed to a compound capable of reacting with the activated carboxyl moieties (e.g., o-acylisourea) to form non-carboxyl side groups. Monofunctional and multi-functional amines are examples of compounds which may be utilized to react with the activated carboxyl moieties to form such non-carboxyl side groups. Thereafter, the collagenous tissue is again exposed to glutaraldehyde. If the non-carboxyl side groups have functional amino groups (NH2), such additional exposure to glutaraldehyde will result in additional glutaraldehyde cross-linking of the collagen molecules and resultant improvement of durability.
Patent CA-2263682-A1 (CA)
Inventor: GOZDZ ANTONI S
IPC: H01M10/0565
Filed: 1997-09-16
Abstract: Formation of a unitary laminate rechargeable battery (20) comprising electrode (23) and separator/electrolyte elements (21) of polymer composition utilizes apparatus comprising compression rollers (36) of sufficient hardness to resist deformation during laminating contact with such elements (21, 23). Maximum progressive compression short of lateral deformation of battery elements (21, 23) ensures expulsion of interfacial entrapments and optimum functional contact between laminate elements. Battery structures (20) fabricated with the apparatus may comprise active particulate component ratios in excess of about 75 % by weight.
Patent CA-2264710-A1 (CA)
Title: In situ deep remediation injection system & method
Inventor: NICKELL JERRY D
IPC: E02D3/00
Filed: 1997-09-05
Abstract: The invention relates to a deep remediation injection system for in-situ remediation of contaminated soil and ground water capable of progressive penetration both vertically and horizontally in contaminated soil and ground water having a soil penetrating lance (10) for injecting air and oxygen and liquid with suspended biologicals into the contaminated soil as said soil penetrating lance (10) is inserted for penetration in the soil, an air compresser (11) for compressing air and delivering the air under pressure to the soil penetrating lance (10) on one end (26), a gas connector control (12, 14) for connecting the gas compressor (11) to the lance (10) and for controlling the compressed gas flow, and a liquid connector means (17, 19) for connecting the liquid pump (16) to the lance (10) and controlling the pressurized liquids.
Patent CA-2265522-A1 (CA)
Inventor: TRONO DIDIER P
IPC: C12N5/10
Filed: 1997-09-08
Abstract: Selon la présente invention, on a mis au point des procédés destinés à modifier des vecteurs rétroviraux dérivés de virus qui ne sont pas connus comme étant pathogènes chez l'homme (par exemple le virus de la leucémie murine de Moloney), afin que ces vecteurs puissent transduire des séquences hétérologues dans des cellules ne se divisant pas. Ainsi, on a découvert que l'on pouvait rendre des rétrovirus capables d'infecter des cellules ne se divisant pas, en introduisant dans la particule virale l'une de ces modifications déterminées bien précisément. Par exemple, on peut associer un élément reconnu par le mécanisme d'importation nucléaire d'une cellule ne se divisant pas, au complexe de nucléoprotéines du rétrovirus. Dans un autre mode de réalisation, on modifie au moins une protéine codée par l'acide nucléique viral gag ou pol, de façon que cette protéine soit reconnue par le mécanisme d'importation nucléaire d'une cellule ne se divisant pas.
Patent CA-2266151-A1 (CA)
Title: Utility pole mounting structure
Inventor: FOURNIER PAUL W
IPC: E04H12/02
Filed: 1999-03-19
Abstract: A utility pole comprises an inner structure disposed within an envelop formed of a different material than that of the inner structure, thereby enabling the combination of the qualities inherent to both materials in a single utility pole. The utility pole may be of a modular construction for allowing equipment and accessories to be integrated to the utility pole. For instance, a transformer may be added between to adjacent sections of the inner structure of the utility pole. A distribution system may be provided in the base of the utility pole for allowing some utility lines to be concealed within the utility pole and the soil.
Patent CA-2266454-A1 (CA)
Title: Determination of respiratory phase
Inventor: BERTHON-JONES MICHAEL
IPC: A61B5/087
Filed: 1997-09-23
Abstract: The apparatus provides for the determination of the instantaneous phase in the respiratory cycle, subject's average respiration rate and the provision of ventilatory assistance. A microprocessor (16) receives an air-flow signal from a pressure transducer (18) coupled to a port (17) at a mask (11). The microprocessor (16) controls a servo (19), that in turn controls the fan motor (20) and thus the pressure of air delivered by the blower (10). The blower (10) is coupled to a subject's mask (11) by a conduit (12). The invention seeks to address the following goals: while the subject is awake and making substantial efforts the delivered assistance should be closely matched in phase with the subject's efforts; the machine should automatically adjust the degree of assistance to maintain at least a specified minimum ventilation without relying on the integrity of the subject's chemoreflexes; and it should continue to work correctly in the presence of large leaks.
Patent CA-2267819-A1 (CA)
Inventor: IWASHITA SAKAN
IPC: G02F1/1333
Filed: 1999-03-31
Abstract: The present invention provides an image display apparatus enabling to easily handle the thin glass plate and easily assemble the apparatus, thus increasing the production yield.      The image display apparatus includes: a plasma cell having a plurality of discharge electrodes arranged at a predetermined interval and parallel to one another on one main surface of a first substrate, a dielectric thin plate arranged at a predetermined distance from the first substrate, and a seal portion for sealing the space between the first substrate and the dielectric thin plate; an electro-optical material layer; and a second substrate having on its opposing surface electrodes formed to extend approximately in the direction vertical to the discharge electrodes, the second substrate being placed via the electro-optical material layer over the dielectric thin plate. The dielectric thin plate is a layered body having at least a thin glass plate and a high-molecule polymer film which are bonded to each other. The layered body may further include an ultraviolet-ray shading film.
Patent CA-2268731-A1 (CA)
Inventor: HYNDMAN SANDRA MAUREEN
IPC: A61L2/08
Filed: 1999-04-07
Abstract: This invention relates to the rendering of the already existing industrial electron beam accelerator to one that is compact in size, for home or small business purposes. The prime purpose for building such a machine small enough to be used in the home is to equip the individual with a device that will sterilize contaminated products within their own environment. Most importantly, it is designed to kill the DNA in the living cell virus such as those associated with AIDS, hepatitis, meningitis and other highly communicable diseases. The new accelerator technology will apply to a photon accelerator system, incorporating a photo activated film polymer technology.
Patent CA-2269912-A1 (CA)
Inventor: KITABATAKE MAKOTO
IPC: H01L21/20
Filed: 1998-08-27
Abstract: A thin silicon carbide film is epitaxially grown by MBE etc. on the silicon carbide crystal growth surface (1a) of a substrate (1) while keeping silicon atoms (2) present in excess relative to carbon atoms. Thus, a silicon carbide substrate with a satisfactory crystalline state can be formed at a low temperature with good reproducibility. This growth is possible even at temperatures not higher than 1300 ~C, and it is possible to form a heavily doped film, a selectively grown film, and a film comprising cubic silicon carbide grown over hexagonal crystals. When cubic silicon carbide is crystallized on hexagonal crystals, the use of an off-cut substrate having a plane slanting to the direction (numeral 1) is effective in preventing twin generation.
Patent CA-2272286-A1 (CA)
Title: Dental bleaching composition and method
Inventor: SIBNER JEFFREY A
IPC: A61C5/00
Filed: 1997-11-26
Abstract: A dental bleaching composition having enhanced effectiveness and reduced sensitivity, its method of use, and a kit containing the ingredients for making the composition. The dental bleaching composition is in the form of a gel with a pH of about 9 to 11 and comprises a bleaching agent such as hydrogen peroxide, an inert gelling material such as silica compounds, a pH  modifier such as sodium hydroxide, and a discrete inert particulate material capable of absorbing the emitted laser light and retransmitting it as thermal energy. The dental bleaching composition is placed on the teeth to be bleached, exposed to laser energy, and removed. The process is then repeated until the desired amount of bleaching is achieved. Neutral sodium fluoride is then applied to the bleached teeth for at least 10 minutes to reduce or eliminate post-bleaching sensitivity.
Patent CA-2278195-A1 (CA)
Title: Partition for showers, in particular roller blind
Inventor: OSCHMANN EBERHARD
IPC: A47K3/38
Filed: 1997-05-14
Abstract: A partition for showers, in particular a roller blind, consists of a housing (1) that can be horizontally mounted, has at least one open side in the longitudinal direction and in which a rotary shaft (3) is guided. An antisplash foil (2) is wound around the shaft (3). Also provided are means for winding and unwinding the anti-splash foil (2) over the opening of the housing and a batten secured to the free end of the anti-splash foil (2). According to the invention, the anti-splash foil (2) has a pocket (7) at its free end for receiving the batten (4). The batten (4) is subdivided into separate and/or flexibly joined sections (41-43), so that the anti-splash foil (2) can lie against the inner side of a bath tub (9), shower tub or the like, following the inner contour of the same.
Patent CA-2284608-A1 (CA)
Title: Inner sole for a shoe
Inventor: SEITER HANS
IPC: A43B7/14
Filed: 1998-05-08
Abstract: The invention relates to an inner sole (11) for a shoe, comprising a base body (36), a covering layer (37) and several cushioned layers (12, 13, 14) arranged on the surface of the sole. A first cushioned layer (12) is provided in the ball area of the forefoot, a second cushioned layer (13) is included in the transition area of the metatarsus and the tarsus and a third cushioned area is provided between the metatarsus and the heel. The cushioned layers (12-16) are subdivided into individual, separate plateau-like fields (18-27) which are located close to each other in the transversal direction of the sole surface. This provides an inner sole which brings about a substantial improvement in the transport of fluids in the venous and lymphatic vessel system in the legs during movement of the foot joints and ankle joints by means of synergistic support of the muscle structure.
Patent CA-2285433-A1 (CA)
Title: Tubing restoring bumpers for improved accuracy peristaltic pump
Inventor: DANBY HAL C
IPC: F04B43/08
Filed: 1998-12-18
Abstract: An apparatus in a medical delivery device for biasing tubing having a select original cross section which is subject to compression and relaxation to substantially its original cross section upon relaxation. The apparatus includes a plurality of bumpers disposed lengthwise of the tubing operatively associated with the tubing to bias the tubing to its original cross section and spaced relative to adjacent bumpers to provide for free expansion of the tubing as it is subject to compression.
Patent CA-2290712-A1 (CA)
Title: Novel pyridonecarboxylic acid derivatives or their salts, and antibacterial agents containing the same as their effective components
Inventor: HIRAO YUZO
IPC: C07D205/04
Filed: 1996-09-20
Abstract: Disclosed is the compound 1-(6-amino-3,5-difluoropyridin-2-yl)-8-chloro-6-fluoro-7-(3-hydroxyazetidin-1-yl)-4-oxo-1,4-dihydroquinoline-3-carboxylic acid represented by the following formula:   (see above formula) or a salt thereof. The compound or salt is useful as an anti-bacterial agent.
Patent CA-2293975-A1 (CA)
Title: Yumcha 2000 p.o.s.
Inventor: TONG NORMAN TAM
IPC: G06Q50/12
Filed: 1999-12-28
Abstract: THIS INVENTION RELATES TO A COMPUTERIZED SYSTEM, WHICH MARKEDLY SPEEDS-UP THE PROCESSING OF ORDERS      PLACED IN RESTAURANTS, BARS, AND ENTERTAINMENT      ESTABLISHMENTS. IT COMPRISES VARIOUS INPUT METHODS      SUCH AS CARD SCANNING, SCREEN INPUT AND INTERNET      UTILISATION. IT ALSO INCLUDES A SYSTEM WHICH      FACILITATES MONITORING OF TABLE ACTIVITY.
Patent CA-2294482-A1 (CA)
Title: Treatment of aging skin
Inventor: MAMMONE THOMAS
IPC: A61K8/00
Filed: 1999-04-22
Abstract: The present invention relates to a topical composition for application to the skin comprising an effective amount of ADP, AMP or oxaloacetic acid, or a combination thereof, with a cosmetically or pharmaceutically acceptable carrier. The compositions of the invention can be used to increase the energy level of cells, particularly skin cells, and to treat and prevent the symptoms of aging in the skin.
Patent CA-2297592-A1 (CA)
Title: Novel 3,4-diaryl thiophenes and analogs thereof having use as antiinflammatory agents
Inventor: BERTENSHAW STEPHEN R
IPC: A61K31/365
Filed: 1994-01-14
Abstract: There is disclosed a pharmaceutical composition for the treatment of cyclooxygenase-2 mediated diseases, in which the composition is suitable for once a day oral administration. The composition comprises .1 to 2000 mg of a compound of a 3-4-diaryl substituted furanone derivative.
Patent CA-2297972-A1 (CA)
Inventor: ANDERSON JOSEPH
IPC: E04B1/76
Filed: 1998-07-29
Abstract: A prefabricated building panel (30, 32) for use in constructing a building structure (20) includes a generally planar concrete panel, a metal member (50, 76, 78) separate from the concrete panel and positioned on an end surface of the concrete panel so that the metal member is exposed for serving as a welding surface, and a plurality of bar anchors (60, 74) welded to the metal member and embedded in the concrete panel. The bar anchor is welded to the metal member to fix the metal member in place relative to the concrete panel. The metal member serves as a connection region for connecting the building panel to another building panel through welding.
Patent CA-2298528-A1 (CA)
Inventor: STADTFELD HERMANN J
IPC: B24B3/00
Filed: 1998-07-14
Abstract: A method of treating a cutting edge of a tool to reduce deterioration of the cutting edge during a subsequent machining operation. A brush having a plurality of bristles is rotated about an axis of rotation and positioned relative to the cutting edge whereby the brush axis is oriented perpendicular to the cutting edge or at an angle of up to about plus/minus 20 degrees with respect to the perpendicular orientation. The brush is then brought into contact with the cutting tool in the presence of an abrasive material. Preferably the cutting tool is a cutting blade for cutting touthed articles such as gears and the like wherein the cutting edge is formed by the intersection of a front face and a cutting side profile surface of the cutting blade. The rotating brush effectively polishes a portion of the front face and cutting side profile surface which is adjacent to the cutting edge while producing the rouding-off of the cutting edge.
Patent CA-2299748-A1 (CA)
Title: Method and system for ascertaining the emergency running condition of a pneumatic tire
Inventor: OLDENETTEL HOLGER
IPC: B60C23/00
Filed: 2000-02-28
Abstract: System and method for ascertaining the emergency running condition of a pneumatic tire on a motor vehicle. The system includes at least one sensor device arranged at least on each axle, the at least one sensor device adapted to supply a permanently present first periodic oscillation proportional to a wheel rotation speed as a speed output signal, the at least one sensor device comprising one of an active and a passive magnetic field sensor being mounted to one of rotate with the tire and be stationary, the at least one sensor device further comprising one of a magnetically active and passive transmitter device which rotates at the wheel rotation speed relative to a magnetic field sensor, the transmitter device being arranged complementary to the at least one passive and active magnetic field sensor and adapted to produce a periodic magnetic field change in proportion to the wheel rotation speed in a detection range, at least one signal processing device for processing and evaluating the speed output signal, the signal processing device being adapted to produce one of an output control and a warning signal, a transmission and a display device for at least one of the transmission and the display of the speed output signal, and for one of the transmission and the display of at least one of the output control and the warning signal, and an emergency running device arranged on the vehicle wheel which, in an emergency running condition, is adapted to produce at least one separately defined periodic oscillation related to the emergency running condition and proportional to the emergency running condition wheel rotation speed, wherein, in an emergency running condition, the at least one separately defined periodic oscillation is superimposed on one of the first periodic oscillation and or the speed output signal.
Patent CA-2300291-A1 (CA)
Title: Active light emitting road marking system
Inventor: MARINESCU VALENTIN EMANUEL
IPC: E01F9/669
Filed: 1998-07-13
Abstract: A light emitting road marking system (70) which can be used to mark roads (60) which includes a plurality of active light emitting road markers (40) being permanently fixated in an arrangement onto a road (60), each of the plurality of active light emitting road markers (40) includes at least one light source (44), each of the light sources (44) being supplied with power for enabling emission of light.
Patent CA-2301357-A1 (CA)
Inventor: PRITCHARD JONATHAN ARTHUR NICH
IPC: B65G47/24
Filed: 2000-03-20
Abstract: A system of conveyors and conveyor units for moving and aligning articles in single file in one or more paths of travel as the articles are moved forward by the conveyors.      The articles are blocks of wood of random length and of common thickness. The first conveyor in the system is a conventional vibrating conveyor and this is followed by a conveyor of the vibrating type provided with an undulating upper surface that defines parallel flow paths of a first article alignment section. Next is a combination vibrating and belt conveyor in which a first portion of the conveyor is a second alignment section provided by an undulating upper surface followed by a second section having deeper spaced apart parallel channels. The upper flight of an endless belt travels along the bottom of each of respective ones of the deeper channels. The articles, as they are moving forward, become aligned in single file in the respective flow paths of the alignment sections and the deeper channels. The last unit is a multi-lane article accumulator, cueing and gated dispensing unit in which there is the upper flight of an endless power driven belt in the bottom of each of a plurality of spaced apart channels. A 90 degree change of direction conveyor is used, as desired, in the conveyor system to change the path of travel with out materially affecting or disturbing the alignment of the articles.
Patent CA-2303268-A1 (CA)
Title: Therapeutic nanospheres
Inventor: WALSH SCOTT
IPC: A61K31/52
Filed: 1998-06-11
Abstract: 4-Phenylbutyrate exerts many beneficial biological effects. It appears to induce the transcription of certain promoters, as well as having a remedial effect on proteins which are aberrantly localized within the cell. In addition, it appears to cause cells to developmentally differentiate. The present invention provides nanosphere formulations of 4-phenylbutyrate and other drugs which remediate defective protein localization intracellularly.  These formulations permit lower concentrations of drugs to be administered, providing both cost and safety benefits.