baber/WOPTO huggingface dataset:
Patent CA-2039393-C (CA)
Title: Melt processable polyurethaneurea copolymers and method for their preparation
Inventor: ONWUMERE FIDELIS C
IPC: C08G18/50
Filed: 1991-03-28
Granted: 1995-06-27
Abstract: Melt processable polyurethaneureas  are  prepared from  a  diisocyanate,   a  polyglycol,  a  diol  chain extender and an amine terminated polyether.  Water may be included as a reactant, and the polymer may contain an additive such as a radiopaque material and a coating of  an  antithrombogenic  agent or  an  antimicrobial agent.    The   invention   includes   a   one-pot   bulk polymerization method for preparation of the polymers.
Patent CA-2039645-C (CA)
Inventor: DUFOURNET DENIS
IPC: H01H33/915
Filed: 1991-04-03
Granted: 1994-11-22
Abstract: Medium-voltage circuit-breaker with abutting arcing contacts, comprising, in an insulating envelope (20) filled with a gas having good dielectric properties, a first stationary arcing contact (24, 27), connected to a first current intake (23), and a moving rig comprising a first tube (32) which can be displaced by an operating rod (46), the said first tube being connected by gliding contacts to a second current intake, the said first tube defining, with a second stationary tube (40), a blast volume and being prolonged by a blast nozzle, the said circuit-breaker further comprising a second arcing contact (50, 51) characterised in that the first tube is milled so as to comprise a first part (31) of small diameter and cooperating with the said second tube (40) to constitute the said blast volume (41), and a second part (32), of larger diameter, carrying the said blast nozzle (37), the two parts being connected by a substantially annular portion (33) comprising through-holes (34) and a shoulder (33A) and constituting a blast piston, the said second contact consisting of a third tube (50) sliding inside the said first part (31) of the said first tube, the said third tube comprising a flange (52) on which is supported a first end of a spring (53), a second end of which is supported on the said shoulder (33A), the said spring being taut when the circuit-breaker is in the engaged position. 
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Patent CA-2047917-C (CA)
Title: Printer mechanism for use with a document transport mechanism
Inventor: BROUWER FREDERICK W
IPC: B41K3/00
Filed: 1991-07-25
Granted: 1996-02-27
Abstract: Front and rear printers for use with a document transport mechanism.  The printers are identical in construction with each having a compact housing in which the associated print head is mounted. The housing has first and second side walls, a front wall which also functions as a guide for guiding documents to be printed upon therepast, and a rear wall which functions as a circuit board which houses the driver electronics associated with the printer. The print head (ink jet) is mounted on a carriage which is moved within the housing in a first direction which is perpendicular to the direction in which the documents are moved in a document track past the printers.  The front and rear printers are detachably mounted on opposed sides of the document track to enable the printing of alphanumerics or graphics on the front or the rear of a document moving thereby.
Patent CA-2049013-C (CA)
Title: Laser light irradiation apparatus for medical treatment
Inventor: DAIKUZONO NORIO
IPC: A61B17/125
Filed: 1990-03-31
Granted: 1999-09-07
Abstract: Laser light apparatus for medical treatment to permit amputations, incisions, vaporization of living tissues of an animal such as a human body, thermal therapy and the like. This apparatus consists of a laser light generator, a laser light penetrating probe system and a laser light transmitting system. The laser light penetrating probe system is provided with an opposed pair of laser light penetrating probes. The opposed pair of penetrating probes can be controlled by a medical operator so as to be brought into or out of contact with each other at their laser light emitting portions. Laser light is impinged onto the opposed pair of penetrating probes respectively from the laser light generator through the laser light transmitting system. Then, a target area of living tissues is pinched by the opposed pair of penetrating probes so as to be disposed between the opposed pair of laser light emitting portions.
Patent CA-2053474-C (CA)
Title: Plant transformation method using agrobacterium species adhered to microprojectiles
Inventor: BIDNEY DENNIS
IPC: C12N5/10
Filed: 1991-10-15
Granted: 1998-12-29
Abstract: Bacteria of the species Agrobacterium are applied to particles which are used in a typical particle gun in a manner which retains their viability after the dry-down process involved in microparticle bombardment.  When plant materials are bombarded with particles coated with the bacteria, high rates of stable transformation are achieved.
Patent CA-2059363-C (CA)
Title: Benzo¬5,6|cyclohepta¬1,2-b|pyridine derivatives and antiallergic agents comprising same
Inventor: HONDA HARUYOSHI
IPC: A61P37/08
Filed: 1992-01-15
Granted: 1998-12-22
Abstract: Benzo[5,6]cyclohepta[1,2-b]pyridine derivatives of the following formula:                         (see fig. I) wherein R1 represents a cyano, carbamoyl, alkylsulfoxy, alkylsulfonyl, tetrazolyl or sulfonic acid group, and R2 represents a hydrogen atom, a cyano, phenyl, aralkyl, alkoxycarbonylalkyl, aminoalkylcarbamoylalkyl or lower alkyl group, or a group    or -X-R4, X   being an oxygen or sulfur atom, R3 standing for a hydrogen atom or a substituted or unsubstituted lower alkyl, phenyl or aralkyl group, and R4 being a substituted or unsubstituted lower alkyl, phenyl or aralkyl group or an aminoalkyl group, and salts thereof.  Antiallergic and antihistamic agents containing one of the above derivatives or salts as an active ingredient are also described.
Patent CA-2061317-C (CA)
Title: Process and apparatus for locating a predetermined point on a cassette tape
Inventor: PEREGO LUCIANO
IPC: G11B27/13
Filed: 1992-02-17
Granted: 1997-12-02
Abstract: In the described method and apparatus a leader, distributed between two winding hubs of a magnetic tape cassette, is first completely would onto one hub by means of a first motor.  Then, a second motor carries out a complete rewinding of the leader onto the second hub to enable an encoder to execute the counting of the overall length of the leader.  Subsequently the first motor is operated again to rewind the leader onto the first hub.  The encoder counts how much leader has been rewound on the first hub and causes the stoppage of the rewinding when the length of the rewound leader reaches a predetermined value.  The invention arranges a leader so that it may be partly extracted from the cassette and then cut into two equal pieces which will be spliced to the opposite ends of magnetic tape.
Patent CA-2069762-C (CA)
Title: Fibreoptic switch
Inventor: SJOELINDER SVEN RICKARD
IPC: G02B6/35
Filed: 1990-11-22
Granted: 1998-02-03
Abstract: The present invention relates to a fibreoptic switch for enabling one or more of n number of incoming optofibres to be connected selectively with a respective one of m number of outgoing optofibres. According to the invention, the switch includes a matrix block (1) having light transmitting devices (2) which extend in n number of rows and m number of columns between an input side and an output side. On the input side, the incoming optofibres (3) can be displaced linearly along a respective row of the rows of light transmitting devices (2), and the outgoing optofibres (6) on the output side can be displaced linearly along a respective column of the columns of light transmitting devices (2?. A selected incoming optofibre (3) can therewith be displaced along its corresponding row to a desired column of light transmitting devices (2), and an outgoing optofibre (6) in a corresponding column can be displaced to a corresponding row of light trans-mitting devices (2), so as to mutually connect the selected optofibres.
Patent CA-2078496-C (CA)
Title: Utility knife
Inventor: WILCOX JOHN H
IPC: B26B5/00
Filed: 1992-09-17
Granted: 2003-12-02
Abstract: A releasably locking handle for a retractable blade utility knife. The handle is formed from a pair of elongated mating handle halves connected by a central pivot. A slidable blade carrier is supported between the handle halves. The handle has a dual locking mechanism which provides for pivotal opening of the handle only when the blade carrier is in a fully forward position. A magnet which is fixed in the handle slidably supports the blade carrier.
Patent CA-2079888-C (CA)
Title: Process for preparing 2-acylglycerides or 1,2-diacyl diglycerides or 2,3diacyl diglycerides
Inventor: MAZUR ADAM W
IPC: C12P7/64
Filed: 1991-04-01
Granted: 1998-10-06
Abstract: A process for the selective hydrolysis of triglycerides to 2-acyl glycerides is disclosed. This process uses a primary lower alkyl alcohol selected from the group consisting of methanol, the primary butanols and the primary pentanols and 2-butanol, an aqueous buffer system and a 1,3-lipase. The 2-acyl monoglycerides can be used to make stereospecific 1,2-diacyl glycerides or 2,3-diacyl glycerides through esterification with acid anhydrides and 1,3-lipase catalysis. Stereospecific 1,2,3-triglycerides can be made from these materials by standard esterification reactions under conditions which control rearrangement.
Patent CA-2093804-C (CA)
Inventor: SURZYCKI STEFAN J
IPC: C12Q1/68
Filed: 1991-10-11
Granted: 2002-07-09
Abstract: Described is an improved process for fragmenting a biomaterial and isolating and recovering a component thereof. The preferred improved process includes the step of performing the fragmentation by nebulizing a liquid medium containing the bi-omaterial. A preferred process for fragmenting isolated DNA includes the step of nebulizing a fluid containing the DNA. This preferred process provides randomness superior to prior known DNA  fragmentation methods, as well as other important advan-tages. An improved nebulization device is also described.
Patent CA-2096805-C (CA)
Inventor: WHIPP ROY HUBERT JR
IPC: C22B5/14
Filed: 1993-05-21
Granted: 1999-03-02
Abstract: In a process for the direct reduction of particulate iron-oxide-containing material by the fluidized bed method reformed gas is mixed with top gas forming in the direct reduction of the iron-oxide-containing material and is fed to a fluidized-bed reduction zone as a reducing gas. To lower the energy demand and utilizing the potential of the reducing gas, both the top gas and the reformed gas are subjected to CO2 scrubbing and the reducing gas formed by mixing top gas with reformed gas is adjusted to an H2 content ranging between 45 and 75 %, preferably between 50 and 65 %, and to a CO content ranging between 10 and 20 %.
Patent CA-2099449-C (CA)
Inventor: MORAND CLAUDE
IPC: C10M177/00
Filed: 1993-06-30
Granted: 2003-09-16
Abstract: Process for temporary corrosion protection of a pickled metal article, especially of a metal sheet, characterised in that it comprises the stages consisting in:   - applying to at least a part of the said metal component an emulsion obtained by dispersing in water from 3 to 13 % by volume of an oily phase comprising from 75 to 90 % by volume of at least mineral oil, from 5 to 10 % by volume of at least one surface-active agent and from 5 to 15 % by volume of at least one corrosion inhibitor, - drying the said coated metal article until a dry film is obtained.
Patent CA-2100270-C (CA)
Inventor: BROTZMANN KARL
IPC: C21B13/00
Filed: 1991-12-23
Granted: 1998-05-05
Abstract: A method of reducing metal oxides in a vessel containing a molten bath, the bath comprising a metal layer and a slag layer, wherein metal oxides and carbonaceous material are introduced into the bath, gas is injected into the slag layer to cause the eruption of molten slag parts, droplets and/or streams into the gas space above the bath and oxygen-containing  gas is injected into the gas space to cause post-combustion.
Patent CA-2101320-C (CA)
Inventor: WHITE FRANCIS E
IPC: B21D9/03
Filed: 1992-01-27
Granted: 1995-07-04
Abstract: Apparatus for bending an elongated member (12) transversely to a web (46) thereof without substantially altering the cross-sectional configuration thereof including a form (11) having a plurality of pivotal seats (17 and 26) and flexible plates (39). Flexi-ble mandrels (63) including a plurality of parallel plates (67) are received within the elongated member (12) and, in combination with a plurality of clamps (52, 53 and 54) the form (11) and a press plate (33) supporting the elongated member (12), prevent the bending forces exerted thereon from distorting the cross-sectional configuration of the elongated member (12). The form (11) dis-tributes the exerted force required to bend the elongated member (12) over a selected length thereof, thereby reducing the unit for-ce exerted on any selected point to a level that will not buckle the elongated member (12).
Patent CA-2106350-C (CA)
Inventor: AGRAWAL RAKESH
IPC: F25J3/04
Filed: 1993-09-16
Granted: 1997-03-18
Abstract: The present invention relates an improvement to a cryogenic process for the separation of air which produces at least a nitrogen product and is carried out in a distillation column system having at least one distillation column from which the nitrogen product is produced. The distillation column of the distillation column system must comprise a rectifying section. In the process of the present invention, air is compressed, freed of impurities which will freeze out at cryogenic temperatures, cooled to near its dew point and fractionated in the distillation column system to produce the nitrogen product. The improvement is the operation of the distillation column such that the ratio of downward liquid to upward vapor flow rate (L/V) is no less than 0.65, preferably greater than 0.75, but less than 1.0 in the rectifying section of a distillation column from which the nitrogen product is produced. The flowrates are in moles per unit time.
Patent CA-2110240-C (CA)
Inventor: HOLDSWORTH DAVID W
IPC: A61M5/00
Filed: 1993-11-29
Granted: 2005-07-26
Abstract: A technique for pulsed-injection of radiographic contrast agent uses a pressurized source of contrast agent interrupted by a rotary valve at rates ranging from 1 to 30 Hz. This produces well-defined boll at the end of the catheter. The position of these boli is recorded by a digital radiographic system and analyzed to produce quantitative measurements of blood velocity and flow rate throughout the cardiac cycle.
Patent CA-2111180-C (CA)
Inventor: BOARDMAN MARK DAVID
IPC: B60C23/16
Filed: 1993-12-10
Granted: 1999-05-11
Abstract: A vehicle central tire inflation system (10), which checks and inflates/deflates tires of an automotive tractor and trailer, is provided with aprevention control (110) for preventing inflation/deflation operation of the system (10) when the tractor is disconnected from the trailer.
Patent CA-2114661-C (CA)
Inventor: BRANDIGAMPOLA DON EDWARD
IPC: H01Q1/34
Filed: 1994-02-01
Granted: 1997-03-25
Abstract: A free standing antenna for use in association with high-stress environments subjecting the antenna to extremes of flexing stress and temperature stress and chemical stress, the antenna having a mounting base portion which can be secured to a base adjacent to the high-stress environment, the base member being formed of glass fibre reinforced resin materials containing fibres extending in a longitudinal direction, along the axis of the base, and further fibres running in a generally annular fashion in planes generally transverse to the axis, and the base member further defining a fastening flange, a plurality of fastening holes formed in the flange, a generally tapering neck portion extending upwardly from the fastening flange, and a generally cylindrical junction head extending upwardly from the neck, the head and the neck being located along a common central axis, and an antenna column secured to the cylindrical head, the column being formed of hollow tubular metal defining outer and inner wall surfaces, and progressively tapering from a larger end to a smaller end, and a cylindrical junction portion at the wide end which makes a snug fit over the generally cylindrical head portion of the base, at least three electrical connections secured to the column portion adjacent the base, at spaced apart points therealong, to which electrical connections may be made by radio equipment, a generally dome shaped cap secured to the smaller end of the column portion, and, a damping weight secured within the interior of the column spaced below the cap.
Patent CA-2116442-C (CA)
Inventor: HIGA TATSUO
IPC: C07H15/10
Filed: 1992-04-28
Granted: 2000-09-05
Abstract: The present invention relates to the novel glycosphingolipid represented by the formula (A):   (see formula I) wherein R represents (see formula II), where R2 represents H or OH and X denotes an integer of 0-26, or -(CH2)7CH=CH(CH2)7CH3 and R1 represents any one of the substituents defined by the following (a)-(e): (a) -CH2(CH2)Y CH3. (b) -CH(OH)(CH2)Y CH3, (c) -CH(OH)(CH2)Y CH(CH3)2, (d) -CH=CH(CH2)Y CH3, and (e) -CH(OH)(CH2)Y CH(CH3)CH2CH3, wherein Y denotes an integer of 5-17.        The present invention also relates to an anti-tumor agent and an immunostimulator comprising one or more of the aforementioned compounds as effective ingredients.      Furthermore, the present invention relates to a process for preparing a glycosphingolipid, characterized in that a particular glycosphingolipid is collected from a marine sponge Agelas mauritianus.
Patent CA-2121474-C (CA)
Inventor: WOLLENBERG ROBERT H
IPC: C10N10/04
Filed: 1993-09-01
Granted: 2003-08-19
Abstract: This invention is directed to neutral and law overbased alkylphenoxy sulfonates derived from alkylphenols prepared by al-kylating phenol with an acidic alkylation catalyst having a Hammett (H o) acidity function of about -2.3 or less (less positive).
Patent CA-2127069-C (CA)
Inventor: EOFF LARRY S
IPC: C04B24/16
Filed: 1994-06-29
Granted: 2002-03-26
Abstract: A method of cementing a wellbore which penetrates a subsurface gas-containing formation is provided whereby gas migration is reduced. The method features the use of an additive consisting of a tannin backbone having grafted thereto at least two different vinylamide derivatives. The additive causes the cement slurry employed in the method to exhibit a Zero Gel Time of greater than about one hour, a Transition Time of less than about one hour and controls fluid loss from the slurry.
Patent CA-2127673-C (CA)
Inventor: SUZUKI AKIRA
IPC: H04W52/02
Filed: 1994-07-08
Granted: 2000-02-15
Abstract: A valid bit generator of a base station generates a valid bit to be disposed at or near the top of a message to be transmitted, sets the valid bit to be inactive if the message can be ignored, sets the valid bit to be active if the message cannot be ignored, and transmits the message. Upon reception of this message, a valid bit detector of each terminal station judges whether the valid bit added at or near the top of the received message is inactive or active. If inactive, a message analyzing process is immediately stopped, whereas if active, the message is received and analyzed to the end thereof.
Patent CA-2127975-C (CA)
Title: Bed mattress
Inventor: MASUDA ISAMU
IPC: A47C27/15
Filed: 1990-03-28
Granted: 1996-02-27
Abstract: The present inventions is directed to a bed mattress, in which a mattress body  (1)  is  formed with a core portion consisting of a hard molded foam having a sufficient thick-ness or hollow synthetic resin moldings having a rigidity, and elastic  surface layers  (6),   (7)  including protecting plates (4),   (5) overlayed on both sides of the core portion (3) sandwiched therebetween.  At least one of the surface layers (6),   (7) is formed by overlapping a first cushion layer  (10)  consisting of  a soft cushion material,   and a second cushion layer (11) consisting or a semihard cushion material having a depression-and-protrusion surface (13) on its surface on the protecting plate 4.      In a conventional bed mattress,   since a plurality of coil springs fixed to a metal frame is incorporated,  a gross weight becomes heavier and handling is inconvenient.  In this invention,  however, since the metal member is not used and a hard molded foam and hollow synthetic resin moldings having a rigidity are used as a core portion (3),  it is light and there is no problem of rusting and breaking. Besides,  since the  depression-and-protrusion  surface  (13)  of  the  second cushion layer (11) on the surface layer supports the body in point contact,  a good permeability and the finger-pressure operation by the protrusions (14) are obtained for improving health.
Patent CA-2128828-C (CA)
Inventor: SILVER DAVID MICHAEL
IPC: G06F3/0482
Filed: 1994-07-26
Granted: 2001-01-02
Abstract: An operating system includes standard resources in a number of different natural languages. The standard resources are utilized to display window elements in windows. The operating system and application programs run on the operating system may utilize the standard resources to generate windows. The application programs may choose the language of the standard resources they use independently of the language of resources the operating system uses.
Patent CA-2129059-C (CA)
Inventor: CALDWELL FRANK JOSEPH
IPC: B01F35/60
Filed: 1994-07-28
Granted: 2001-01-30
Abstract: A food mixer is provided with a bowl guard consisting of a fixed first semi-cylindrical splash guard portion and a removable semi-cylindrical second see-through portion pivotable about a cylindrical mixer transmission. The second portion is suspended from the transmission by spaced guide shoes mounted on a circumferential ring at the upper end of the pivotable portion. The shoes slidingly engage a fixed track extending horizontally and circumferentially around the transmission portion. The improvement consists of the track being provided as an essentially continuous bead formed in a cylindrical sheet metal band covering the transmission portion. The bead is integral with the band and may be created by rolling or spinning it into the band with metal forming tools. When the second portion of the bowl guard is removed for cleaning away from the mixer, the exterior of the band can be easily cleaned by wiping, since its method of manufacture provides a band surface which is essentially free of food-collecting crevices.
Patent CA-2131912-C (CA)
Title: Process for coating the surface of elongated materials
Inventor: TYCHININ ANATOLIJ I
IPC: C23C2/38
Filed: 1993-03-04
Granted: 2004-01-13
Abstract: In a process for coating the surface of elongated materials, the materials go through a container for the molten coating ma-terial without reversing their direction. The container has a through channel surrounded by an electric field in which an electrom-agnetic force is generated and the dwelling time of the strip in the melt can be controlled independently from the strip advance speed. In order to improve the conventional strip coating process, so that favourable intermediate layers that ensure a good ad-herence and a good plasticity of the coating can be achieved, the molten coating material is continuously moved against the sur-face of the elgongated material and is circulated in an atmosphere free from atmospheric oxygen while the hank-shaped goods go through the container. A device used therefor is characterized in that a pre-melting container (12) is associated to the coating con-tainer for the molten coating material (2), and the melt (2) can circulate between the pre-melting container (12) and the coat-ing container (1) in an atmosphere free from atmospheric oxygen.