baber/WOPTO huggingface dataset:
Patent CA-2060440-A1 (CA)
Inventor: WILLS FRANK E
IPC: H02P27/06
Filed: 1992-01-31
Abstract: A motor drive system for driving a single-phase PSC motor, in which the two motor windings are conductively isolated from each other, from a two phase power source.  In one embodiment, the PSC motor is supplied from a two phase inverter circuit.  The PSC motor is also connectable through a four-pole double-throw switch to either a single phase source including a run capacitor or the two phase inverter circuit.
Patent CA-2060853-A1 (CA)
Title: System clock switching mechanism for microprocessor
Inventor: IDE MOTOKI
IPC: G06F9/46
Filed: 1992-02-07
Abstract: ABSTRACT    This system clock switching mechanism for a microprocessor has system clock specification data for the tasks in holding means such as a task control block (TDB).  If there is no task in READY or RUN status, the clock switching control unit switches the system clock to the low speed clock.  When the task is put in RUN status, the system clock specification data for that task in TDB is referred to so that the system clock is switched to the clock as specified.
Patent CA-2061454-A1 (CA)
Inventor: KADOYA TERUICHI
IPC: B29C45/14
Filed: 1992-02-18
Abstract: A filter element and a method for manufacturing the filter element is disclosed wherein filter paper is folded in a zigzag manner to form a filter material, and a circumferential portion of the filter material is fastened by an adhesive so as to fasten the zigzag filter material and to divide the filter material into a dust side and a clean side. Thus, the structure of the filter element is simplified and a filter performance is enhanced.
Patent CA-2064663-A1 (CA)
Inventor: KAUTT JEAN-JACQUES
IPC: B23P19/04
Filed: 1992-04-01
Abstract: ABRÉGÉ DESCRIPTIF Machine de pose de ferrures sur des profilés, notamment de pose de gâches sur des profilés; destinés, après assemblage ultérieur, à constituer des dormants de porte ou fenêtre Cette machine comprend un ensemble automatisé comportant: - un support (20) de profilé (10), - des moyens translateurs (30), pour déplacer longitudinale ment le profilé sur ce support jusqu'à amener l'emplacement de pose de la ferrure en regard d'un axe prédéterminé (.DELTA.1) de la machine, - des moyens de préhension (32), pour immobiliser le profilé sur son support après action des moyens translateurs, - des moyens de dépose de ferrures, comportant un bras mani pulateur (40) propre à prélever une ferrure (70) dans une réserve et à déposer la ferrure ainsi prélevée sur le profilé audit emplacement de pose, - des moyens de recentrage, pour ajuster la position de la ferru re ainsi déposée sur le profilé et la maintenir en cette position, et - des moyens de fixation (60), notamment de fixation par vis sage, pour solidariser la ferrure au profilé. (Figure 1)
Patent CA-2066108-A1 (CA)
Title: Flame-retardant thermoplastic composition
Inventor: FASULO GIAN C
IPC: C08L25/06
Filed: 1992-04-15
Abstract: FLAME-RETARDANT THERMOPLASTIC COMPOSITION                       ***************          Abstract Flame-retardant thermoplastic composition including a styrene polymer containing thoroughly incorporated therein an effective quantity of a synergetic mixture composed of a chlorinated hydrocarbon compound containing at least  40% by weight of combined chlorine, an inorganic compound containing oxygen of a metal belonging to group III or IV of the periodic table, and polytetrafluoroethylene having a particle size which is less than 20 microns.
Patent CA-2066442-A1 (CA)
Title: Method of preparation of hirudin
Inventor: KOERWER WOLFGANG
IPC: C12N15/62
Filed: 1990-12-04
Abstract: Described is the use of fusion proteins comprising protein A and hirudin peptides to prepare hirudin peptides.
Patent CA-2067157-A1 (CA)
Title: Method of controlling access to restricted access data and communication system therefor
Inventor: MACKENZIE JOHN R S
IPC: G06F21/31
Filed: 1990-10-04
Abstract: In electronic communication systems, negotiations are performed between two pieces of apparatus (e.g. modems) in order to ensure technical compatibility during subsequent data transmission. Instead of performing security checks in the known manner after the negotiations have been completed (e.g. sending an access code or identity code), the invention teaches that the negotiations themselves should be customized to include security checks. For example, during negotiations between a call modem and an answer modem, the call modem includes a "first indication" in the negotiations. The answer modem detects the "first indication" and permits the call modem to have access to restricted access data during data transmission after the negotiations have been completed. The "first indication" may comprise a negotiation segment having a precise length and/or containing an embedded code. The answer modem may include a "second indication" in the negotiations in order to trigger the call modem to produce the "first indication". Also, the call modem may include a "third indication" in the negotiations after the "first indication" in order to identify more precisely or uniquely the call modem.
Patent CA-2069218-A1 (CA)
Title: Process and an arrangement for reducing nox emissions
Inventor: VOGTEL PETER
IPC: B01D53/56
Filed: 1992-05-22
Abstract: The invention relates to a process for reducing NO x emission in the thermal reaction (combustion) of nitrogen-containing fuels or in the reduction of waste gases or vapors containing nitrogen oxides by a multistage reaction in which, in a first stage, all the nitrogen oxides present or spontaneously formed are reduced in a substoichiometric fuel-to-oxygen ratio and, in a following second stage or in following further stages, are after-reacted until all the oxidizable reaction components have been completely reac-ted. To accelerate the reaction, the reactants are addi-tionally activated in at least one of the reaction stages by activation regenerators which statically mix the reac-tants with one another and contribute towards the equaliza-tion of heat flow. A furnace internally comprising a regenerator wall with throughflow openings is provided for carrying out the process.
Patent CA-2070661-A1 (CA)
Title: Method for reducing the risk of back-corona in an electrostatic precipitator
Inventor: PORLE KJELL
IPC: B03C3/013
Filed: 1990-12-10
Abstract: In a method for reducing the risk of back-corona in an electrostatic precipitator (5) to which hot dust-containing gases are conducted via a gas supply duct (4) and through which the gases are conducted for dust separation, the gas temperature is reduced and the gas humidity increased by the addition to the gases, before these are conducted through the precipitator (5), of water which evaporates in the gases. Thus, an amount of water proportioned to bring about the desired reduction in temperature is injected into the gas supply duct (4). A given amount of the dust particles separated in the precipitator (5) is employed as carrier for the water, and is recycled by being injected into the gas supply duct (4) jointly with the water carried by dust particles.
Patent CA-2070741-A1 (CA)
Title: Inertia ballasted low wind self starting windmill
Inventor: WATT ROY B
IPC: F03D1/00
Filed: 1992-06-05
Abstract: TO WHOM IT MAY CONCERN :      Be it known that I, ROY BERNARD WATT , a citizen of the Philippines , and a resident of 14-A San Pablo Street , San Juan , Metro Manila Philippines have made a new and useful utility model for  :                Abstract AN IMPROVED INTERNAL-BALLASTED LOW WIND VELOCITY      SELF-STARTING WINDMILL of which the following are the specifications : This utility model design particularly relates to a new concept of spider and main shaft that will enable the windmill design herein to commence
Patent CA-2071260-A1 (CA)
Inventor: BRUNSON DAVID A
IPC: B29C49/64
Filed: 1992-06-15
Abstract: A blow-molded container of thermoplastic resin has a hollow body with a generally cylindrical side wall portion rotationally symmetric about a longitudinal axis of the container.  A shoulder portion integrally joins the side wall portion to a finish.  An integral base merging with the side wall is defined by an outer surface comprising a plurality of downward projections separated from each other by generally arcuate segments extending essentially from the cylindrical side wall to the longitudinal axis of the container.  The shoulder and sidewall portions are tempered during formation of the container to withstand hot filling at a temperature of at least about 170°F and subsequent introduction of a cryogenic liquid gas to provide an initial pressurization of at least 20 psi at the fill temperature.
Patent CA-2071740-A1 (CA)
Title: Barbecue brick
Inventor: BALASCH PETER
IPC: C04B35/16
Filed: 1992-06-19
Abstract: BARBECUE BRICK            ABSTRACT   A method of manufacturing a barbecue brick comprises the mixing of organic and/or inorganic material with a silicate solution which binds the various constituents and prevents combustion of the brick. The mixture is cast into moulds, cured and cut to the desired brick sizes. The cut bricks are then heated, thereby causing charring of the organic particles and frothing of the silicates. The organic material comprises wood particles and the inorganic component is made up of refractory material such as fire clay or alumina-silica. The silicate solution comprises aqueous sodium silicate and/or aqueous potassium silicate. The bricks manufactured by this method are characterized by a high porosity which serves to prevent fluids, resulting from the cooking of meats, from dripping on to the gas burners. In this manner, these bricks prevent fouling of the barbecue and the burners. In addition, flaring, which occurs as such fluids are combusted over the burners, is also prevented. A further method is provided for treating known barbecue bricks to increase their surface porosity.
Patent CA-2072722-A1 (CA)
Title: Multistage cascade-sweep process for membrane gas separation
Inventor: BARBE CHRISTIAN
IPC: B01D53/22
Filed: 1992-08-27
Abstract: ABSTRACT OF THE DISCLOSURE       A cascade-sweep process for the production of a high purity gas using two or more membranes in combination, which entails: a)  collecting a non-permeate stream of a stage N and using the same as a feed stream for a stage N+1, b)  collecting a permeate stream of said stage N+1 and feeding the same to a permeate stream of a stage N by counter-current sweep, and c)  collecting a permeate of a first stage and a non-permeate of a last stage.
Patent CA-2073801-A1 (CA)
Title: Shut-in tool with electric timer
Inventor: SCHULTZ ROGER L
IPC: E21B34/06
Filed: 1992-07-14
Abstract: Abstract of the Disclosure A downhole shut-in tool includes a pilot valve which when opened places a differential pressure across a piston which in turn operably engages a shut-in valve element to close the shut-in tool.  An electronic timer assembly and electric drive motor are provided for controlling the action of the pilot valve.  The electronic timer assembly is also applicable to other types of downhole tools.
Patent CA-2080327-A1 (CA)
Title: Chair with a supplemental keyboard and a keyboard system
Inventor: MOTOYAMA HIDEYUKI
IPC: G06F3/023
Filed: 1992-10-09
Abstract: A chair having keyboard halves arranged in the armrests.  The keys in the keyboard halves can be operated by left and right hands, respectively.  The keyboard provided in the chair can be used as a supplemental keyboard in a keyboard system comprising a main keyboard for inputting data to an information processing apparatus.  The main keyboard has full keys and the supplemental keyboard has keys identical to at least a part of the keys of the main keyboard for inputting data to the information processing apparatus parallel to the main keyboard.  An operator can alternatively use the main and the supplemental keyboard depending on body position.
Patent CA-2081333-A1 (CA)
Title: Polycarbonate/polyester blends with improved thermal melt stability
Inventor: LAUGHNER MICHAEL K
IPC: C08L67/02
Filed: 1991-05-16
Abstract: Impact modified polycarbonate/polyester blends have improved thermal melt stability when containing a low-ion polymeric impact modifier. The low-ion polymeric impact modifier contains 5-80 percent rubber by weight, and is characterized by having a thermal-melt-stabilizing ion content, which (i) in a polymeric impact modifier containing more than 1.0 up to 5.0 wt. percent anti-oxidant, (A) is an ion content of sodium and potassium ions of not more than 1,500 ppm, and (B) is an ion content of all ions of not more than 1,700 ppm; and (ii) in a polymeric impact modifier containing 0.1 to 1.0 wt. percent anti-oxidant, (A) is an ion content of sodium and potassium ions of not more than 800 ppm, and (B) is an ion content of all ions of not more than 1,500 ppm. Reducing the ion content of a polymeric impact modifier in a polycarbonate composition reduces the degradative effect of ionic species on the composition at high temperature.
Patent CA-2081635-A1 (CA)
Title: Reinforced paper tabs
Inventor: HOLMBERG THOMAS
IPC: B42F21/04
Filed: 1992-10-28
Abstract: ABSTRACT OF THE DISCLOSURE Reinforced paper tabs for use in xerographic reporduction equipment. The tabs include a thin reinforcing film that may optionally be recessed into the thickness of the paper sheet, or may merely be very thin with respect to the thickness of the paper sheet, thus permitting the tabbed sheets to be ted through conventional xerographic reproduction equipment for use in production of booklets and the like. Preferably the reinforcing film includes an outer heat activatable adhesive layer that is melt compatible with xerographic toner, so that xerographic images can be permanently reproduced on the reinforced tabs. The invention also relates to methods of manufacturing and collating such tabbed sheets from web stock.
Patent CA-2082297-A1 (CA)
Title: Synthesis and elucidation of pyrimido [4, 5-g] quinazoline derivatives
Inventor: SKIBO EDWARD B
IPC: A61K31/505
Filed: 1992-11-06
Abstract: Abstract Pyrimido[4,5-q]quinazoline quinone derivatives were synthesized as anthraquinone-like reductive alkylating agents.  Like many naturally-occurring antibiotics, these quinone derivatives are designed to afford an alkylating quinone methide species upon  reduction  and  leaving  group  elimination. Kinetic  studies  of  pyrimido[4,5-q]quinazoline hydroquinones provided evidence of quinone methide intermediates    able    to    trap    nucleophiles (alkylation)  and protons.   The rate of quinone methide formation is determined by the hydroquinone free  energy.     Thus,   a  linear  free  energy relationship  for  quinone methide  formation was obtained  by  plotting  rates  of  quinone  methide formation, as the log, versus the quinone reduction potential.  The pyrimido[4-5-q]quinazoline quinone methides fall on this free energy plot,  showing that thPse species are formed by the same mechanism as the other structurally-diverse quinone methides previously  studied  in  this  research group.   A drawback of many quinone antibiotics, particularly the  anthracyclines,  is  the  formation  of  toxic oxygen species by quinone/hydroquinone cycling. In the present  invention pyrimido[4,5-q]quinazoline hydroquinones are found to be relatively stable toward  oxygen,  and  thus  cause  little  oxygen toxicity.   Antitumor screening revealed that the disclosed pyrimid  [4,5-q]  quinazoline dione and tetione derivatives possess excellent inhibitory activity against selected human cancer cell lines.
Patent CA-2083020-A1 (CA)
Title: System for determining manipulator coordinates
Inventor: GRUDIC GREGORY Z
IPC: B25J9/16
Filed: 1992-11-16
Abstract: Abstract An inverse kinematics method of determining joint variables for a manipulator is obtained by forming a model by modifying offset values of a selected arm segments of the manipulator to define a model for which it is possible to derive closed-form inverse kinematics equations for solving the joint variables for said model, developing from said closed-form inverse kinematics equations a system of not more than 3 non-linear equations in not more than 3 unknowns which when solved give an inverse kinematics solution for the model, solving the system of at most 3 non-linear equations to provide the inverse kinematic solution for said manipulator to determine its joint variables.
Patent CA-2085997-A1 (CA)
Title: Method and an apparatus for carrying out an operation on a mechanical workpiece
Inventor: DUBUGNON OLIVIER
IPC: B21J15/00
Filed: 1992-04-22
Abstract: Method and apparatus for carrying out an operation, such as pressing, riveting, cutting etc., on a mechanical workpiece which operation comprises at least one stroke, or movement, along a predetermined path, of at least two active members (6, 7) each being arranged on a carrying unit (1, 2). The mechanical workpiece is first positioned between the active members (6,7). Thereafter the carrying units (1, 2) for the active members are approached to each other in a first part of said stroke. The carrying units (1, 2) are then locked to each other at the end of said first part of said stroke and a second part of said stroke is carried out by means of the relative movement between the active members (6, 7) to achieve the desired effect on the said workpiece.
Patent CA-2086378-A1 (CA)
Title: High resolution compact optical sensor for scanning three-dimensional shapes
Inventor: COSNARD ERIC
IPC: G01B11/25
Filed: 1992-12-29
Abstract: An optical sensor for three dimensional shapes includes a laser that produces a lamellar plane beam which illuminates the surface of an object.  The lamellar plane beam produces a curvilinear luminous trace that is scanned by at least one video camera, to produce information that is then converted into digital data representing pixel coordinates.  The sensor includes a lightbox having a common housing that is positioned a short distance above the object to be scanned.  The lightbox housing also includes a laser source that produces a coll1mated rectilinear beam and an optical device for converting the rectilinear beam into the lamellar plane beam. The lightbox housing also includes a device for lengthening the optical path of the lamellar plane beam, comprising two fixed plane mirrors in face to face relationship to produce a plurality of reflections between a bçam entry point and beam exit point of the lightbox.  The small physical distance between the housing and the object is compensated by a virtual optical distance so that there is a correlative increase in the depth of field of the usable region of the lamellar plane beam at the beam exit point from the housing.
Patent CA-2088285-A1 (CA)
Title: Method and apparatus for finishing a cylinder bore
Inventor: SANTI JOHN
IPC: B23B41/12
Filed: 1993-01-28
Abstract: A method of cutting and finishing a cylinder bore surface yields a highly polished finish having substantially no tool marks. The method includes removing a first thickness of surface material using a diamond-tipped rough cutter disposed on a rotating milling tool head. A second thickness of material is then removed by a diamond-tipped finish cutter also disposed on the same rotating head. The finish cutter removes between 0.0015 to 0.002 inches of material, which corresponds to the majority of the material left in the compressive state after the rough cut step.
Patent CA-2090014-A1 (CA)
Inventor: BREEDEN ROBERT L
IPC: H04M1/72516
Filed: 1991-08-15
Abstract: A radio telephone communication system (200) having a base station (203) including at least one frequency agile time division duplex transceiver (207) for facilitating communication with at lest one radio telephone (100) on the at least one radio frequency channel. The radio telephone (100) scans a plurality of channels capable of being generated by the at least one frequency agile transceiver (207) to find an available channel and provide an indication representing a base station busy status when all the at least one frequency agile transceivers are in use. A base station busy status is indicated when one of a bidirectional time division duplex communication including a base station identification signal is being communicated by the at least one frequency agile transceiver or a unidirectional time division duplex communication including a base station identification signal is being communicated by the at least one frequency agile transceiver (207).
Patent CA-2090526-A1 (CA)
Inventor: GUILBERT LISE
IPC: B60J11/00
Filed: 1993-02-26
Abstract: ??écis La housse de fenêtres de véhicules routiers offre une protection quatresaisons contre le verglas, la neige, le rayonnement solaire et la chaleur. Elle est conçue en formats adaptables à toutes les dimensions et formes de véhicules routiers. Elle s'installe à l'extérieur et couvre entièrement toutes les fenêtres du véhicule. Elle est munie d'un système d'encrage magnétique exclusif. De plus, elle est dotée d'un dispositif qui la protège contre le vol.
Patent CA-2090829-A1 (CA)
Title: Binders for electrocoating
Inventor: HUEMKE KLAUS
IPC: C08G18/10
Filed: 1993-03-02
Abstract: - 15 -          O.Z. 0062/02118 Abstract of the Disclosure:  Binder systems suitable for electrocoating and consisting of a base resin A which carries groups which can be protona-ted with acids or cationic quaternary groups and, if desired, hydroxyl or thiol groups, a crosslinking component B which carries at least two blocked isocyanate groups per molecule and an organic iron compound C which is partially or com-pletely soluble in water, as a catalyst for the thermal crosslinking of components A and B, and if desired, an additive D which increases the catalytic activity of C, are used to prepare dispersions which are used for electrocoating.
Patent CA-2091537-A1 (CA)
Title: Maleimide polymers and contact lenses from such polymers
Inventor: KAWANO TEIJI
IPC: C08F22/40
Filed: 1993-03-11
Abstract: Abstract A maleimide polymer comprises units derived from a maleimide derivative represented by the following general formula (I):                                              (I) where R1 is hydrogen atom or a methyl group, and R1 is an alkyl, alkenyl or aryl group, each of which groups is substituted by at least one organosiloxane group or fluorine atom, or comprises a copolymer of (1) a maleimide derivative represented by the formula (I) but in which R2 may be hydrogen or any optionally substituted aliphatic hydrocarbon or aryl group with (2) an alkyl or fluoroalkyl methacrylate or an organosiloxy styrene- or organosiloxy-(meth)acrylic acid derivative.   The polymer material may be formulated into contact lenses high in oxygen permeability and having good mechanical properties.
Patent CA-2091587-A1 (CA)
Title: Monosaccharides having anti-proliferation and anti-inflammatory activity, compositions and uses thereof
Inventor: ARORA SUDERSHAN K
IPC: A61P37/00
Filed: 1991-09-12
Abstract: Derivatives of simple monosaccharides which exhibit anti-proliferative and/or anti-inflammatory activity and are useful for treating mammals having inflammatory disorders and/or autoimmune disorders. This invention also encompasses pharmaceutical compositions containing these compounds and methods of treating inflammatory and/or autoimmune disorders.