baber/WOPTO huggingface dataset:
Patent CA-2062980-A1 (CA)
Inventor: CAHILL STEPHEN V
IPC: H04L27/20
Filed: 1991-05-15
Abstract: A .pi./4-shift differential quadrature phase shift keying (DQPSK) modulator modulates a digitized voice signal and other information.  A frequency modulation (FM) modulator modulates the analog voice signal and other information.  The FM modulator is coupled to the quadrature mixers (109 and 110) of the .pi./4-shift DQPSK modulator.  When an FM modulated signal is required, the mixers (109 and 110) are biased (114) to allow carrier feedthrough by applying a fixed, non-zero DC signal to one or both mixers (109 and 110).  The carrier is then FM modulated using conventional methods such as voltage-modulation of a phase locked loop (PLL)(113). When .pi./4-shift DQPSK is to be generated, the conventional baseband I and Q vector-length signals (101 and 102) are applied to the mixers (109 and 110), and the carrier is left unmodulated by switching (115) out the input signal to the PLL (113).  The PLL (113) will then generate only the carrier frequency to be mixed with the I and Q vector-length signals (101 and 102).
Patent CA-2063552-A1 (CA)
Inventor: KINDL BRUNO
IPC: C22C49/00
Filed: 1990-07-05
Abstract: A method for preparing deagglomerated fibres and/or particles and for providing the fibres and/or particles with a substantially uniform protective coating, the fibres and/or particles being of a material selected from the group consisting of carbides, oxides, nitrides, silicides, borides, metals and graphite, including SiC, TiC, ZrC, WC, NbC, AlN, TiN, BN, Si3N4, MgO, Al2O3, SiO2, ZrO2, Fe2O3, Y2O3, steel, tungsten, molybdenum and carbon, the method comprising (a) preparing an inorganic colloid sol, and (b) mixing the fibres and/or particles with the inorganic colloid sol to produce a dispersion in which the fibres and/or particles are deagglomerated and substantially homogeneously distributed. The fibres and/or particles, e.g. SiC whiskers provided with an aluminium oxide coating by treatment with an aluminium hydroxide-based sol, are used for the preparation of metal matrix composite materials, e.g. based on aluminium or an aluminium alloy.
Patent CA-2065864-A1 (CA)
Title: Process for preparing saccharide monomeres comprising at least one polymerizable carbonyl-oxyvinyl group
Inventor: MENTECH JULIO
IPC: C07H13/04
Filed: 1991-07-12
Abstract: Method for the preparation of monomers containing at least one polymerisable carbonyloxyvinyl group, of a saccharide chosen from mono-, di- and tri-saccharides, especially from non-reducing mono-, di- and trisaccharides, which consists in reacting the aforementioned saccharide in an aqueous medium with an esterifying reagent containing the aforementioned polymerisable carbonyloxyvinyl group in the presence of a base while the pH of the reaction medium is maintained at a value within the range from 7 to 11 throughout the reaction period. Saccharide monomers containing at least one polymerisable carbonyloxyvinyl group having a controlled degree of substitution.
Patent CA-2066376-A1 (CA)
Title: Burner for a rotary kiln
Inventor: OHLSEN IB
IPC: F23C7/00
Filed: 1992-04-16
Abstract: Burner for a rotary kiln.            ABSTRACT            A burner for a  rotary  kiln  consists of a central  pipe  (5)  for introducing an oil or gas lance, a first concentric pipe (8) for introducing  primary  air  and  a second  concentric  pipe  (1)  for introducing a mixture of solid fuel and carrier air into the burning zone of the kiln.  The pipes  (5,  8 and 1)  form mutually annular channels,  the primary air channel  being located inside the solid fuel/air  channel  and  at  its  end  facing  the  burning  zone  being provided with nozzles mounted parallel to the axis of the burner, the primary air streams from the nozzles drawing the particles of solid fuel  towards the core of the flame in the burning zone to increase the combustion and to reduce the NOx-content in the kiln exhaust gases. The burner is provided with a heat exchanger (14, 18 and 20) surrounding the portion of the burner projecting into the kiln to cool the burner and to increase the primary air velocity during injection into the burning zone.
Patent CA-2071259-A1 (CA)
Title: Linear motion roller bearing assembly
Inventor: NG ALISON
IPC: F16C29/06
Filed: 1992-06-15
Abstract: ABSTRACT A multiple track linear motion recirculating roller bearing assembly is provided for movement on a substantially cylindrical shaft.  The bearing assembly includes a housing with a pair of end caps having a plurality of radially arranged roller turnarounds therein positioned at either end.  The housing defines a plurality of radially disposed axial roller tracks, each having both load-bearing paths and return paths, which paths are in communication with the roller turnarounds formed in the end caps.  Axial roller guides are provided which extend longitudinally within the housing between the end caps and are uniquely formed as a single integral axial guide element.  This integral axial guide element serves to receive and retain load-bearing plates therein.  Rollers are disposed in both the load-bearing and return paths of the roller tracks and are adapted to efficiently move the carriage along a substantially cylindrical shaft.
Patent CA-2073770-A1 (CA)
Title: Radically polymerizable multisubstance mixtures with long storage life after evacuation of air and their use
Inventor: HUVER THOMAS
IPC: C08F4/00
Filed: 1990-12-21
Abstract: The invention relates to radically polymerizable multisubstance mixtures which can be shaped by processing and which contain ethylenically unsaturated polymerizable compounds admixed, if desired, with soluble and/or insoluble fillers and/or other adjuvants. It also relates to starters or activators which can be initiated by the introduction of atmospheric oxygen. These compounds are characterized in that they are applied in the form of at least slightly thickened materials and contain a starter system which can be initiated by the introduction of atmospheric oxygen and which contain the following main constituents: hydroperoxide-forming hydrazone compounds of aliphatic, cycloaliphatic and/or aromatic aldehydes and/or ketones and, if desired, metallic compounds which are at least partially soluble in the system and which accelerate the drying of unsaturated oils and/or reducing agents which accelerate the radical polymerization. The mixtures of these substances, which contain the radically polymerizable constituents, in particular together with dissolved and/or undissolved fillers and/or adjuvants, are suitable for timed curing of predetermined pot life by means of atmospheric air at ambient and/or higher temperatures, preferably when they are shaped by processing.
Patent CA-2075795-A1 (CA)
Title: Stable iodophor in polyurethane foam
Inventor: KHAN MOHAMMAD A
IPC: C11D17/04
Filed: 1992-08-11
Abstract: A  surgical  scrub  includes  a  polyurethane  foam sponge  impregnated with a  composition which  includes iodine,  iodide and  a nonionic  surfactant  in  a polar venicle.  The scrub may be attached to a plastic handle and may be supplied along with other optional scrubbing items in a package wrapped in plastic film.
Patent CA-2076180-A1 (CA)
Title: Process for the synthesis and recovery of tetrahydro-n-¬1-methyl-1-¬3-(1-methylethenyl)-phenyl|ethyl|-2-oxo-1-h-pyrrolo-1-carboxamide
Inventor: PARKER DANE K
IPC: C07D207/263
Filed: 1992-08-14
Abstract: Abstract of the Disclosure PROCESS FOR THE SYNTHESIS AND RECOVERY OF TETRAHYDRO-N-[1-METHYL-1-[3-(1-METHYLETHENYL)-PHENYLIETHYL]-2-OXO-1-H-PYRROLO-1-CARBOXAMIDE      The present invention discloses a process for the preparation of tetrahydro-N-[1-methyl-1-[3-(1-methylethenyl)phenyl]ethyl]-2-oxo-1-H-pyrrolo-1-carhoxamide which is comprised of (1) reacting m-isopropenyl .alpha.,.alpha.-dimethylbenzylisocyanate with 2-pyrrolidinone at a temperature which is within the range of about 80°C to about 150°C to produce a molten reaction product; (2) mixing the molten reaction product with an aqueous emulsifier solution to form an aqueous medium, wherein the aqueous emulsifier solution contains from about 0.1 weight percent to about 10 weight percent emulsifier, and wherein the weight ratio of the molten reaction product to the emulsifier solution in the aqueous medium is within the range of 1:0.5 to 1:100; (3) allowing the tetrahydro-N-[1-methyl-1-[3-(1-methylethenyl)phenyl]ethyl]-2-oxo-1-H-pyrrolo-1-carboxamide in the aqueous medium to crystallize under conditions of agitation into the form of essentially spherical particles; and (4) recovering the tetrahydro-N-[1-methyl-1-[3-(1-methylethenyl)phenyl]ethyl]-2-oxo-1-H-pyrrolo-1-carboxamide particles from the aqueous medium by filtration.
Patent CA-2076899-A1 (CA)
Title: Video image processor and method for detecting vehicles
Inventor: ALVES JAMES F
IPC: H04N11/04
Filed: 1992-08-26
Abstract: A method for processing video images having the steps of generating video images (103) with a multi-spectral video source (102) and converting analog color data contained in the generated video images (103) to digital color data for subsequent signal processing.  The method further includes the steps of extracting the digital color data from designated areas of the generated video images and utilizing the extracted digital color data for identifying a color distinguishable from a background color. Thus, the invention provides a method for processing generated video images which has an intrinsic immunity to the effects of shadows by exploiting multi-spectral color information to distinguish, for example, a passing vehicle from the roadway 116.  In a preferred embodiment, a video image processor (100) is employed having a multi-spectral video source (102) for generating the video images.  A color digitizer (104) is employed for converting the analog color data contained in the generated video images to the digital color data for the subsequent signal processing.  Then, a digital signal processor (106) is employed to extract the digital color data from the designated areas of the generated video images.  Finally, a central processing unit (108) utilizes the extracted digital color data to identify a color distinguishable from the background color.
Patent CA-2077380-A1 (CA)
Title: Modulator mixer - settler of the type having separate stages and mechanical stirring
Inventor: CHOMEL RODOLPH
IPC: B01D11/04
Filed: 1992-09-02
Abstract: DESCRIPTIVE ABSTRACT             The mixer - settler is modulatable and permits use, manipulation and maintenance within a tight, shielded enclosure using a telemanipulator.            As can be gathered from the plan view, it is consti-tuted by several modules (M1, M2, M3), which can be reciprocally dismantled by using tight connecting means (19, 20, 21).  The inlets and outlets (17, 18) for the heavy and light phases are located on the front face (40) of each module.  Regulating members (9, 10, 11) issue onto the upper surface of each module close to the front face (40).  Preferably, shield windows (12) make it possible in each case to see the interphase of a stage comprising a mixing chamber (1) and a settling chamber (2).  This is completed by a motorization assembly (3) placed above the module Application to the treatment of radioactive liquids.            Fig. 1
Patent CA-2078598-A1 (CA)
Inventor: HARLOW JOHN B
IPC: H04M3/46
Filed: 1992-09-18
Abstract: A system for alerting a plurality of telephones in response to an incoming call to a destination directory number. A handling switch sends a query to a centralized database requesting routing instructions, and the database returns the directory number of the plurality of telephones to be alerted for incoming calls to the destination directory number. The busy/idle status of all of the plurality of telephones is checked, and an alerting signal is sent to all idle telephones. The handling switch is notified as to which alerted telephone has an off-hook appearance first, and the incoming call is routed to that telephone.
Patent CA-2078647-A1 (CA)
Title: Break-apart needle electrode system
Inventor: PRASS RICHARD L
IPC: A61B5/296
Filed: 1992-09-18
Abstract: ABSTRACT OF THE DISCLOSURE        The break-apart needle electrode system includes a pair of needle electrodes housed together in a fixed spaced-apart relationship.  The needle electrodes are joined to electrical conductive wire for detachable connection to an electrical source.  The needle electrodes are used in intraoperative facial nerve monitoring by facial electromyographic recording.  Since the needle electrodes are furnished as a bipolar pair with twisted leads in a single break-away housing, they provide standardization, ease of placement and close bipolar recording.  In instances where separate placement of needle electrodes is desired, the housing can be broken apart at a break-away joint.  The needle electrodes are easily manipulated at the housing section as a tandem unit or as separate entities after the housing is broken apart.
Patent CA-2080915-A1 (CA)
Title: Moulage par injection mixte de preformes pour contenants multicouches
Inventor: BECK MARTIN H
IPC: B29C45/16
Filed: 1991-04-19
Abstract: Moule à injection à empreintes multiples (1) utilisé pour le moulage par injection simultanée de plusieurs articles multicouches. Le canal chauffé comprend un seul système collecteur (19) aux fins de la distribution séquentielle des premier et deuxième matériaux en fusion vers les empreintes (3) du moule, chacun des matériaux étant distribué en quantités égales. Chacune des empreintes concaves du moule présente une armature (5), adjacente au point d'entrée des matériaux injectés dans l'empreinte, de manière à éviter, que lors d'un cycle d'injection, le premier matériau injecté ne soit éliminé de l'extrémité de l'armature par le deuxième matériau injecté. Un matériau tampon associé au premier matériau injecté dans le goulot de l'ébauche compense les variations de température des empreintes et du matériau distribué vers différentes zones du moule. La première portion du premier matériau, injecté en quantité mesurée lors du cycle d'injection suivant, scelle l'ébauche à la fin du cycle d'injection.
Patent CA-2082822-A1 (CA)
Inventor: KRUSE DONALD F
IPC: C08L23/28
Filed: 1991-05-08
Abstract: Composition de tuyau comprenant un copolymère halogéné d'une isomonooléfine C4 à C7 et un para-alkylstyrène, des matières de remplissage, des additifs de compoundage de caoutchouc et un agent polymérisant. On décrit aussi un tuyau comprenant au moins une partie fabriquée avec cette composition.
Patent CA-2083642-A1 (CA)
Title: Geriatric chair
Inventor: BOTTEMILLER DONALD L
IPC: A61G5/14
Filed: 1992-11-24
Abstract: GERIATRIC CHAIR                 ABSTRACT OF THE DISCLOSURE A geriatric chair provides easy patient entry and exit and a stable restraint-free environment for a patient seated in a chair while left unattended.  The chair  includes  a  floor  engaging  foot rest portion disposed forwardly of the fulcrum member and a rearward floor engaging member on a side of the fulcrum member opposite from the foot rest portion.   The chair is movable about the fulcrum member between a patient entry/exit position wherein the floor engaging foot rest portion and the fulcrum member engage the floor and a patient rest position wherein the fulcrum member and the rearward floor engaging member engage the floor in a manner such that the chair cannot be moved back to the patient entry/exit position by the patient while sitting in the chair unattended.  The center of gravity of the chair is movable between a position forward of the fulcrum member when in the floor engaging position and a position rearward of the fulcrum member when in the patient rest position.
Patent CA-2086694-A1 (CA)
Inventor: MILLER STEVEN K
IPC: H04Q3/72
Filed: 1993-01-05
Abstract: A system, data processing method and program provide a programmable interface between a workstation and an archive server to automatically store information derived from a telephone transaction.  The archive server stores a data base of records having a plurality of category fields for information derived from the telephone transaction.  A host access table stored in a memory in the workstation, contains programmable commands.  An interface program stored in the workstation memory executes the commands in the host access table, to perform interfacing functions between a host computer and the telephone network and to perform interfacing functions between the workstation and the archive server.
Patent CA-2087416-A1 (CA)
Title: Thermoplastic molding composition
Inventor: HEINRICHS FRANZ-LEO
IPC: C08K5/10
Filed: 1993-01-15
Abstract: Abstract Thermoplastic molding composition A plastic molding composition which comprises a thermo-plastic, preferably polycarbonate, polyester, polyester carbonate, polymethyl methacrylate or a mixture of these polymers,  and  an  ester  of  a  long-chain,  aliphatic carboxylic acid having 24 - 40 carbon atoms with an aliphatic monohydric alcohol having 1 to 5 carbon atoms as lubricant, is distinguished by good flow properties, good mold release properties and very slight impairment of the transparency.
Patent CA-2087792-A1 (CA)
Title: Feed composition for breeding cattle with n-3 fatty acid-accumulated beef
Inventor: YEO YOUNG K
IPC: A23K50/15
Filed: 1993-01-21
Abstract: A feed composition for beef cattle which contains about 30 to 60% by weight of a n-3 fatty acid source, about 7 to 20% by weight of a carbohydrate source, about 3 to 6% by weight of a powdered hay, about 30 to 50% by weight of an emulsifier and about 0.05 to 0.1% by weight of an antioxidant and a method for producing beef rich in n-3 fatty acid by supplying said feed composition to a cattle are described.
Patent CA-2088900-A1 (CA)
Title: Intelligent lock system
Inventor: BIANCO JAMES S
IPC: E05B47/00
Filed: 1993-02-04
Abstract: In a preferred embodiment, an intelligent lock system which includes a wrench insertable in a lock mechanism, the wrench transmitting a signal to the lock mechanism from a microprocessor indicating the presence of the wrench and receiving from the lock mechanism an identifying signal, the lock mechanism transmitting the identifying signal to the microprocessor through the wrench, the microprocessor subsequently transmitting to the lock mechanism a password through the wrench, and, the lock mechanism receiving the password and unlocking the lock mechanism in response thereto.
Patent CA-2090201-A1 (CA)
Title: Degradable polyamides
Inventor: HOLY NORMAN L
IPC: C08K5/10
Filed: 1993-02-23
Abstract: Abstract This invention provides hydrolytically labile polyamide compositions and articles which will degrade after exposure to water over long periods of time.
Patent CA-2090370-A1 (CA)
Title: Diomond pellets and saw blade segments made therewith
Inventor: MCEACHRON ROGER W
IPC: B05D1/12
Filed: 1993-02-25
Abstract: ABSTRACT OF THE INVENTION    The present invention addresses problems in the diamond saw blade and segment art. one aspect of the invention comprises a method for making handleable, strong, discrete, metal-clad abrasive pellets. This method comprises the steps of:      (a) spraying onto a bed of gas-fluidized abrasive particles a slurry of metallic powder, a binding agent, and a volatile solvent until substantially all the abrasive particles are coated with at least about 20 wt-% of said metallic powder;     (b) recovering said metal powder coated abrasive particles; and (c) heating said recovered coated particles under conditions to form a sintered continuous metal coating enveloping said abrasive particles. The resulting sintered metal-clad pellets form another aspect of the invention.     Another aspect of the invention comprises a method for making saw blade segments from metal-clad abrasive particles, comprising the steps of:    (a) placing a plurality of abrasive pellets, each comprising an abrasive particle coated with at least about 20 wt-% sintered metal, in a mold cavity; and (b) heating the contents of such mold cavity under conditions effective for forming an abrasive particle containing saw blade segment. The resulting saw blade segment is another aspect of the present invention.    Preferably, the weight percent of abrasive in each pellet is from about 1 weight percent to about 10 weight percent and the metal coating weight percent ranges from about 99 weight percent to about 90 weight percent. Pellets devoid of abrasive particles; i.e., "dummy" pellets can be included in the mold cavity in order to regulate the concentration of abrasive particles in the saw blade segment.
Patent CA-2095364-A1 (CA)
Title: Resonator structure
Inventor: TURUNEN AIMO
IPC: H01P1/203
Filed: 1993-04-22
Abstract: The present invention relates to a resonator structure com-posed of two dielectric pieces.  On the upper surface of a first piece (1) is provided a groove (7) extending across the entire surface and coated with an electrically conduc-tive agent, said coating being at least in one end con-nected with an electrically conductive coating serving as a ground plane, so that the groove (7) forms a transmission line resonator.  On the upper surface of the second piece (2) is provided a conductive strip (9) running in the mid-dle of the surface, said strip forming a transmission line resonator.  The pieces (1, 2) are placed with the upper sur-faces thereof against each other and attached to each other so that the groove (7) and the strip (9) are against one another in parallel, whereby the groove and the strip to-gether form a resonator.
Patent CA-2098324-A1 (CA)
Inventor: TORFS WALTER F
IPC: F04D29/40
Filed: 1993-06-14
Abstract: An adaptor is provided for use with the combination of a pressure pipe down a drilled well, a rotary pump at the well bottom and a surface-located rotary drive for the pump. The adaptor is secured to the pressure pipe, and also to a housing member intended to remain stationary, and includes an axial (longitudinal) passage capable of receiving the drive string, and large enough to allow oil to pass through the passage around the drive string. The adaptor also has an open-ended transverse passage intersecting the longitudinal passage. One end of the transverse passage is closed and the other is connected to a discharge pipe extending generally radially away from the adaptor, such that the discharge pipe functions to restrain the adaptor against rotation.
Patent CA-2100524-A1 (CA)
Title: Coloured film
Inventor: SNIDER WILLIAM D
IPC: B41M1/30
Filed: 1993-07-14
Abstract: A polyester film can be dyed by coating the film with a layer of a dye mixture which is a suspension of at least one disperse dyestuff in a solution of a thickener in water and which has a viscosity of no more than 500 centipoise, preferably 5-50 centipoise, at ambient temperature, followed by heating to cause the dyestuff to migrate from the layer into the film. The coating process is preferably reverse gravure printing. The process can be used to prepare films which contain one or more dyestuffs in one surface region of the film and one or more different dyestuffs, for example an ultraviolet absorber, in the other surface region of the film. The dyed films show good resistance to fading when exposed to light and are useful for example as automobile window films.
Patent CA-2100556-A1 (CA)
Title: Continuous roll forming of composites
Inventor: BERECZ IMRE
IPC: B29C43/30
Filed: 1992-01-23
Abstract: A continuous forming method for long composite structural shapes such as "Z", "HAT", "L", etc. is provided. First, a lay-up is made from unidirectional tape or woven cloth (10), then the material is heated to accommodate softening of resin, then pulled through a set of rollers (14, 16, 18), then through a matched metal die (20) and a rapidly reciprocating punch (22) that facilitates to form the final shape. As the material is pulled through the area of match metal die (20) and punch (22), it is cooled down by the heat sink of the die (20) and punch (22), or any other means, so when the part exits the die (20) and punch (22) area, it is sufficiently cooled down to retain the desired shape. The rapidly reciprocating punch (22) permits the part to be pulled continuously.