baber/WOPTO huggingface dataset:
Patent CA-2075015-C (CA)
Title: Disc cartridge
Inventor: TAKAHASHI KENJI
IPC: B29C45/00
Filed: 1992-07-30
Granted: 2002-10-22
Abstract: A disc cartridge comprises a cartridge main body rotatably accommodating an optical disc which has a magnetic member attached to a central portion of one of major surfaces of a disc substrate, and means provided on the inner surface of said cartridge main body for keeping clearance between the inner surface of said cartridge main body axed a protuberance produced by attaching said magnetic member to said one of the major surfaces of said disc substrate.
Patent CA-2080981-C (CA)
Title: Magneto-optical recording method and magneto-optical memory device
Inventor: HIROKANE JUNJI
IPC: G11B11/105
Filed: 1992-10-20
Granted: 1999-02-16
Abstract: A magneto-optical recording method for rewriting of information includes the initial step of projecting a light beam, whose intensity varies in response to information to be recorded, onto a magnetic thin film with perpendicular magnetization while an external magnetic field of a constant intensity is applied thereto. The magnetization direction of an irradiated area of the magnetic thin film with perpendicular magnetization is arranged in the direction of the external magnetic field when a light beam at high intensity is projected, while it is arranged in the direction of a demagnetizing field, opposite to the direction of the external magnetic field generated by magnetization in the vicinity of the irradiated area, when a light beam of low intensity is projected. A magneto-optical memory element is provided with a base whereon the magnetic thin film with perpendicular magnetization and an in-plane magnetization film are formed. With the above arrangement, an overwriting operation can be carried out through light intensitymodulation without requiring an initialization magnet.
Patent CA-2082881-C (CA)
Title: Energy saving and monitoring pneumatic control valve system
Inventor: HORSTMANN THEODOR H
IPC: F15B20/00
Filed: 1992-11-13
Granted: 1994-09-20
Abstract: ENERGY SAVING AND MONITORING PNUEMATIC CONTROL VALVE SYSTEM     ABSTRACT OF THE DISCLOSURE An improved pneumatic control system is selectively deactuable and actuable for controlling movement of the armature of a pneumatically-operated device between first and second working positions and includes a timing subsystem that enhances the efficiency of the overall system by stabilizing the control system at a pressure necessary to maintain certain static conditions in the pneumatically-operated device, while still providing for full control air pressure when dynamic operations are required. In addition, such a control system compensates for system leakage in an efficient manner by using full control air pressure only when needed for proper operating functions of the overall system.
Patent CA-2085211-C (CA)
Title: Stripping system
Inventor: CHENG ALAN T-Y
IPC: C08G63/78
Filed: 1992-12-11
Granted: 1999-09-28
Abstract: IMPROVED STRIPPING SYSTEM                 Abstract of the Disclosure An in-line stripper has a venturi-conical mixer combination in which the annular space thereby is automatically adjustable in response to changes in viscosity or other property conditions.
Patent CA-2092134-C (CA)
Title: Distributed routing network element
Inventor: MAZZOLA ANTHONY J
IPC: H04L12/56
Filed: 1993-03-22
Granted: 1998-07-21
Abstract: A network element comprises a plurality of routing circuits coupled by internal communication circuitry. Each routing circuit comprises one or more external ports for communicating with external devices, one or more internal ports for communicating with other of the routing circuits, a database for storing address and path information received via the internal and external ports and circuitry for retransmitting address information received from an external device to other of the routing circuits.
Patent CA-2094889-C (CA)
Title: Catalytic cracking catalysts and additives
Inventor: KUMAR RANJIT
IPC: B01J23/10
Filed: 1993-04-26
Granted: 2003-11-25
Abstract: Catalytic cracking catalysts/additives which comprise rare-earth, preferably lanthanum, oxide and/or oxychloride dispersed in an acid reacted metakaolin matrix. The catalysts/additives may be combined with zeolite-containing cracking catalysts to enhance catalytic activity/selectiyity in the presence of metals (Ni and V).
Patent CA-2103698-C (CA)
Title: Wire entry arrangement for components in a protective dam area of a foam insulated electric water heater tank
Inventor: RUARK DARRYL L
IPC: F24H1/18
Filed: 1993-08-06
Granted: 1996-11-26
Abstract: An electric water heater tank defines a water chamber having an electrical component extending outwardly of the outer surface of the tank. A spaced outer jacket surrounds the tank and has a opening affording access to the component. A protective dam in the opening bridges the gap between the tank and jacket in surrounding relationship to the component and is covered by a cap extending over the component and engaging the dam. Electrical wires connected to the component extend outwardly of the jacket between the cap and dam. A door covers the cap and dam and is secured to the jacket such that the door engages the cap to force the dam into sealing engagement with the jacket and tank. Foam thermal insulation material fills the space between the jacket and the outer surface of the tank.
Patent CA-2107116-C (CA)
Title: Apparatus and method for voice band reduction
Inventor: NEIL J PHILIP
IPC: H03G5/00
Filed: 1992-05-08
Granted: 1997-12-09
Abstract: An apparatus for frequency band reduction of a voice signal having an upper and lower band limit including a voice signal input. A clipping circuit clips the positive and negative peaks of the voice signal connected to the voice signal input. A bandpass filter is connected to the clipping circuit for rejecting harmonics created by the clipping circuit. A low and high end roll-off filter device is provided for producing a given db/octave frequency roll off at the lower bandlimit. The geometric mean value of the upper and lower bandlimit falls within a given lowerand a given upper frequency range.
Patent CA-2118150-C (CA)
Inventor: GRITTER DAVID JAMES
IPC: H02M7/5387
Filed: 1994-10-14
Granted: 1999-06-08
Abstract: A method and a device for regulating current from an inverter supplying three-phase excitation signals to an induction motor.  Two of the three phase currents are converted to digital signals which are sent to a microprocessor. The microprocessor converts the digital signals into a waveform angle signal and a waveform modulation constant signal.  The switching signals for the inverter are generated in response to the waveform angle signal and the waveform modulation constant signal.
Patent CA-2118792-C (CA)
Inventor: ARAKI SEIICHI
IPC: A61K47/32
Filed: 1992-09-09
Granted: 2006-08-22
Abstract: An immunopotentiating and infection protective agent comprising riboflavin and/or a riboflavin derivative, which is safe for the human, animals or the like, an immunopotentiating and infection protective agent comprising riboflavin and/or a riboflavin derivative and (1) proline and/or glutamine, (2) an antibiotic, or (3) a water-soluble polymer or lecithin, which.is safe for the human, animals or the like, and a process for the production thereof.
Patent CA-2130824-C (CA)
Inventor: HILL CHARLES C
IPC: B01D53/04
Filed: 1992-02-28
Granted: 2000-07-18
Abstract: Improved apparatus for fractioning fluid mixtures, such as air, by pressure swing molecular adsorption employs a rotary distributor valve and an array of adsorber columns.      Columns are, in one embodiment, contained within a product holding tank or, in another embodiment, attached to a product tank. Valve sequences to provide a quasi steady-state flow, allowing optimization of adsorption/desorption cycles, and eliminating most of the valves, switches and plumbing usually required.
Patent CA-2131366-C (CA)
Inventor: GLASS JOHN
IPC: A61K47/22
Filed: 1993-03-11
Granted: 2003-09-23
Abstract: Drug delivery systems have been developed based on the formation of diketopiperazine (or analogs) microparticles. In the preferred embodiment the microparticle is stable at low pH and disintegrates at physiological pH, and is particularly useful for oral drug delivery. In the most preferred embodiment the microparticle are formed in the presence of the drug to be delivered, for example; insulin or heparin. The diketopiperazine synthetic intermediates are preferably formed by cyclodimerization to form diketopiperazine derivatives at elevated conditions under dehydrating conditions, then precipitated with drug to be incorporated into microparticles.
Patent CA-2134469-C (CA)
Inventor: GRIFFITHS JOSEPH ANTHONY
IPC: A62B18/04
Filed: 1993-05-05
Granted: 1997-10-07
Abstract: A breathing apparatus for aircrew comprising a rigid outer shell (4) in which a flexible face-piece (3) is received whose periphery is adapted to make a seal with the pilot's face. The face-piece incorporates an inspiratory and expiratory valve and the outer shell has means (5,32) for attaching it at a fixed distance from the wearer's face. The face-piece also includes extendable means (20) a bladder (30) automatically operable to press the periphery of the face-piece (3) towards the pilot's face to improve the seal therewith when gas at a pressure above that required for normal breathing is supplied to the facemask, the extendable means reconfiguring as a result thereof. Transparent viewing means (31) are either mounted on the rigid outer shell (4) in the wearer's line of sight or can be formed as a viewing window (31) incorporated in a flexible NBC hood (30) or a full face protective helmet.
Patent CA-2135465-C (CA)
Title: Collapsible portable trailer for all terrain vehicles
Inventor: GROVOM DOUGLAS
IPC: B62D63/06
Filed: 1994-11-03
Granted: 1997-05-06
Abstract: A  trailer  having  a  fixed  framework  and  a telescoping framework engaging the fixed framework for shortening or lengthening of the trailer; a flexible floor foldable for use in either mode; a hitch assembly which permits ninety degree upwardly pivot of the trailer, when in the shortened mode for non-ground support portability on the towing vehicle; and a support bar engaging the towing vehicle for holding the trailer in the supported, portable position.  A substantially V-shaped housing on the trailer provides a storage container with low center of gravity and also provides an axle housing for the trailer wheels.
Patent CA-2137054-C (CA)
Title: Position detector
Inventor: MEHNERT WALTER
IPC: G01P3/487
Filed: 1994-11-30
Granted: 2006-05-09
Abstract: A position detector operable to detect the position of a moving body by generating an electrical signal and feeding it to an electronic processing means whenever the moving body reaches a predeterminable position has an energy storage means which, when the body approaches the predeterminable position, accumulates and stores a part of the kinetic energy of the body in the form of potential energy and, when said predeterminable position is reached, abruptly liberates the stored potential energy in the form of kinetic energy. The detector further has a means for conversion of the kinetic energy into an electrical energy pulse which is fed to the electronic processing means, whereby the electronic processing means operates reliably even when its regular power supply has failed and the moving body is approaching the predeterminable position at a very low speed.
Patent CA-2141985-C (CA)
Inventor: STEPP MICHAEL DIPL CHEM DR
IPC: C08G77/08
Filed: 1995-02-07
Granted: 1999-01-12
Abstract: A process for the preparation of organopolysiloxanes which contain at least one unit of the formula (R10)3-mRmSiO1/2 in which R    is identical or different and is a hydrogen atom or monovalent, optionally substituted hydrocarbon radical, R1   is identical or different and is a monovalent, optionally substituted hydrocarbon radical having 1 to 8 carbon atoms and m    is 0, 1 or 2, which comprises, in a 1st step, reacting organosilicon compounds (1) which contain at least one Si-bonded hydroxyl group with at least one silane (2) of the formula (R1O)4-mSiRm and/or partial hydrolysates thereof, in which R, R1 and m have the above mentioned meaning, in the presence of a fluoride salt (3), and, optionally, in a 2nd step, when the reaction has ended, adding component (4) which can bond fluoride ions.
Patent CA-2142747-C (CA)
Inventor: KURYLUK MICHAEL H
IPC: B03B5/28
Filed: 1995-02-17
Granted: 2000-05-16
Abstract: Disclosed is a method and apparatus for separating from a mixture materials having different specific gravities which can operate in a continuous manner and can separate particles of materials of non-uniform grain size. Water or other fluid is passed upwardly through an apparatus having an upper funnel in which is disposed a rotatable agitator having vanes or paddles which pass close to riffles on the wall of the funnel. Material to be separated is fed into the funnel and the upward flow of fluid is adjusted so that material of low specific gravity is carried up the funnel to an overflow discharge. With the agitator rotating, fine particles of the material to be separated and having a specific gravity higher than a certain figure are captured in "dead-zones" created behind the riffles and move down through the fluid to a discharge tube. Larger particles of the material to be separated move down through the upward flow of fluid to the discharge tube. The supply of fluid is periodically momentarily interrupted to eject material collected in or just above the discharge tube.
Patent CA-2144321-C (CA)
Inventor: CHRISTIANS NICK E
IPC: A01N37/46
Filed: 1994-07-27
Granted: 1999-07-13
Abstract: A method of selectively inhibiting growth of unwanted plants in a plot of soil is provided comprising the application of a plant protein hydrolysate to the plot of soil, prior to emergence of the unwanted plants and at a concentration of application which inhibits the growth of the unwanted plants. The invention further provides a composition useful as a selective preemergence herbicide comprising an effective amount of a peptide selected from the group consisting of Gln-Gln, Ala-Asn, Ala-Gln, Gly-Ala, Ala-Ala, Leu-Ser-Pro-Ala-Gln and mixtures thereof.
Patent CA-2146041-C (CA)
Title: Switchgear module and configurations, and method of fabrication and assembly thereof
Inventor: DEVONALD DAVID H III
IPC: H02B13/00
Filed: 1995-03-31
Granted: 2005-08-23
Abstract: A switchgear module is provided that is assembled from one or more molded housing portions to provide a gas-tight volume for the housing of electrical components. The switchgear modules include provisions for assembly of various combinations of switchgear modules into a variety of electrical circuit configurations while maintaining a gas seal of the switchgear modules. In a preferred arrangement, the switchgear module includes bus conductors that are integrally incorporated during the molding of the switchgear module housing and that are accessible from opposite sides of the module. Further, the switchgear module includes integrally molded features for providing access to make electrical interconnections between the bus conductors of adjacently positioned switchgear modules. Thus, the finally assembled and tested switchgear modules with pressurized internal volume may be configured to provide a variety of different electrical circuit combinations of the internal components and are also capable of being reconfigured as desired into different configurations or lineups without the loss of the seal of the interior volume of the switchgear modules. The switchgear module includes a complete internal and integral system to satisfy desirable operating practices to deenergize, test and ground the circuit before working thereon. Specifically, the switchgear module includes an integral indicator with test feature, a visible open gap in the circuit which is readily observable externally to the module, and a ground position for the internal switch to ground the circuit. In a preferred arrangement, an operating mechanism is internal to the module and controls the position of either a loadbreak switch or a disconnect switch between three operable positions, close, open, and ground. The operating mechanism is charged and operated by an operating train that is connected to an operator control.
Patent CA-2148946-C (CA)
Inventor: GOULAIT DAVID JOSEPH KENNETH
IPC: A44B18/00
Filed: 1993-12-08
Granted: 1998-09-01
Abstract: (see fig.I) The invention is a hook fastening material for use with a complementary loop fas tening material, which hook fastening material has from about 1600 to about 2500 prongs per square inch and is substantially non-ab rasive and non-irritating to human skin. In one embodiment the hook fastening material has prongs with an engaging means at an angle of abo ut 90.degree. to about 160.degree. relative to the extension of the perpendicular to the plane of the substrate. In another embodiment the hook fast ening material is formed on a compressible substrate. In still another embodiment the hook fastening material has prongs made of an ethyl ene vinyl acetate based polymer or a polyethylene based polymer. Methods for making such hook fastening materials and articles of use ar e also disclosed.
Patent CA-2149272-C (CA)
Inventor: TOMIYAMA KOICHI
IPC: G03G9/09
Filed: 1995-05-12
Granted: 2000-10-24
Abstract: A toner for developing electrostatic images having a uniform composition and uniform performances over varying sizes of toner particles is constituted by (a) a binder resin, (b) a long-chain alkyl compound and (c) an azo-type iron complex. The long-chain alkyl compound is represented by the following formula (1), (2) or (3):      CH3~CH2~CH2OH  (1), (see formula I) CH3~CH2~CH2COOH (3), wherein x and y independently denote an average value in the range of 35 - 150; z denotes an average value in the range of 1 - 5, and R denotes H or an alkyl group having 1 - 10 carbon atoms. The azo-type iron complex compound is represented by the following formula (4); (see formula II) wherein X1 and X2 independently denote hydrogen atom, lower alkyl group, lower alkoxy group, nitro group or halogen atom; m and m' denote an integer of 1 - 3; R1 and R3 independently denote hydrogen atom, C1-18 alkyl or alkenyl, sufonamide, mesyl, sulfonic acid group, carboxy ester group, hydroxy, C1-18 alkoxy, acetylamino, benzoylamino or halogen atom; n and n' denote an integer of 1 - 3; R2 and R4 denote hydrogen atom or nitro group; and A+ denotes a cation including 75 - 98 mol. % of ammonium ion and another ion selected from the group consisting of hydrogen ion, sodium ion, potassium iron and mixtures thereof.
Patent CA-2157072-C (CA)
Inventor: MILLS ROBERT A R
IPC: F16D43/16
Filed: 1995-08-28
Granted: 1999-06-15
Abstract: A safety coupling for preventing backspin at excessive speeds of a torque transmitting drive powering a drive shaft which stores reactive torque due to torsional stress is disclosed. The safety coupling includes a rotatable driving member to be coupled with a torque producing power source, a rotatable driven member to be coupled with the drive shaft for axial rotation therewith, means for coaxially and rotatably supporting the driving and driven members in relation toeach other, a radial abutment provided on the driving member, and a centrifugal force responsive pawl pivotally mounted to the driven member for releasable engagement with the abutment. The pawl is pivoted from a locking position wherein it engages the radial abutment upon mutual rotation of the driving and driven members to provide a positive driving connection therebetween, to a disengaged position wherein the driving and driven members are freely rotatable relative to each other by the centrifugal force acting thereon when the driven member is coupled to a drive shaft backspinning at a speed in excess of a selected speed. The coupling substantially prevents damage to the torque transmitting drive upon excessive back-spin of the drive shaft and reduces the risk of injury to personnel working in the vicinity of a drive shaft subject to elastic torsion.
Patent CA-2158016-C (CA)
Title: Easy-opening composite closure
Inventor: HAYWARD DONALD W
IPC: B65D77/20
Filed: 1994-03-14
Granted: 2002-01-29
Abstract: An easy-opening closure for hermetic sealing of the open end of a packaging container (100) includes an end member (20) for being double-seamed to the open end of the container and having an interior ledge portion (23) defining a large central opening (24) and a composite lidding member (30) of at least two polymer layers (35, 36) defining a predetermined peel strength and an interfacial plane for controlled delamination of the two layers. The composite lidding member covers the central opening and is bonded to the ledge portion to define a bond strength greater than the peel strength of the two polymer layers. The lidding member has a continuous ring-shaped notch (67) cut into the bottom polymer layer adjacent the ledge portion and a discontinuous ring-shaped notch (69) cut into the top polymer layer and spaced inwardly from the first notch to define a small unnotched portion between its ends and to define  with the first notch a ring member therebetween which is connected at the unnotched portion to the central of the lidding member.  With this construction, the force required to open the closure from the inside of the container is greater than the force required to open the closure from the outside of the container.
Patent CA-2172962-C (CA)
Inventor: CHIU CHUNG-WAI
IPC: A23L21/18
Filed: 1995-01-18
Granted: 1999-09-21
Abstract: Des farines et amidons thermiquement inhibés sont préparés à l'aide d'un procédé consistant à déshydrater et à traiter thermiquement une farine ou amidon granulaire.
Patent CA-2173269-C (CA)
Inventor: ETO SHUNJI
IPC: C02F3/20
Filed: 1996-04-02
Granted: 2001-01-30
Abstract: In a polluted water purifying method and apparatus,  a purification treatment tank is filled with massive purifying members in a purifying region, each massive purifying member including plural opening portions having an equivalent diameter of 1 to 5cm which are provided on the surface thereof, and plural interconnecting channels which intercommunicate with one another and provided inside of the members, and each opening portions continuously intercommunicating with at least one of the channels.  Polluted water containing SS,  BOD,  etc.  is supplied through the purifying region of the tank to be brought into contact with the massive purifying members. At the same time,  oxygen-contained gas is jetted as fine bubbles at a predetermined interval from the bottom portion of the purifying region into the polluted water so that the stream of the flowing polluted water flowing in the purifying region, so that the fine bubbles of the oxygen-contained gas are contacted with the polluted water in a substantially perpendicular direction to each other, whereby an aerobic treatment and an anaerobic treatment are rapidly and efficiently performed on the surface of the purifying members and inside of the purifying members respectively.