baber/WOPTO huggingface dataset:
Patent CA-2056188-C (CA)
Title: Polymerization of monovinylaromatic compounds
Inventor: SOSA JOSE M
IPC: B01F5/10
Filed: 1991-11-26
Granted: 2003-01-21
Abstract: Process and apparatus are disclosed for improved additive systems for polymerization processes, which improved systems comprise a slurry additive system having a high shear mixer for mixing a carrier fluid and solid and liquid additives and maintaining them in a suspension slurry prior to injecting them into the polymerization system.
Patent CA-2058117-C (CA)
Title: Reactive feed stream to replace inert blowing agent feed stream in a polyurethane foam process
Inventor: PATTEN WILLIAM
IPC: C08G18/65
Filed: 1991-12-19
Granted: 1995-10-03
Abstract: A process for manufacture of molded, high resiliency, polyurethane foam substantially free of volatile organic blowing agents comprising feeding at least three streams into a mixing device to form a reaction mixture, wherein a first stream contains (i) a polyol, (ii) water, (iii) a catalyst, (iv) a surfactant; a second stream contains an organic polyisocyanate; and a third stream contains (i) water, (ii) a crosslinking/extending agent, and (iii) a process/foam modifier.
Patent CA-2059537-C (CA)
Title: Arching mechanism
Inventor: SCHUSTER WILHELM SR
IPC: A43D3/14
Filed: 1990-08-06
Granted: 2000-10-03
Abstract: An arching mechanism, i.e. for seat backrests, medical or orthopaedic apparatus or casings and the like, with a pressure element wherein at least one traction element connected with a tensioning mechanism engages, which, when the mechanism is actuated can produce bulging by preserving a relative elevation of apex of the convexity. The arching mechanism may comprise a frame with inserted pressure elements actuatable by adjusting device(s), whereby frame segments are length-variable pressure elements. Traction elements provided with a tensioning mechanism may engage a slitted, overlapping or bellows-like bulging body for the opening and closing of these areas, which produces a curving of the bulging body in a predetermined direction or directions.
Patent CA-2067204-C (CA)
Inventor: DIRKSING WILLIAM P
IPC: B31B1/84
Filed: 1990-11-19
Granted: 1995-06-20
Abstract: A liquidproof paperboard carton having a pourspout (1) extending through an aperture (5) in the paperboard. The spout includes inner and outer flanges (4', 6) secured to the inner and outer surfaces (2a, 2b) of the carton. The double flange construc-tion isolates the edge of the aperture form exposure to liquid. The flanges are secured to the carton using heat and pressure sup-plied, for example, by an ultrasonically vibrating horn (10) and an anvil (20). The spout also includes a threaded cap (Ib) and a tamper-evident membrane (1C).
Patent CA-2074207-C (CA)
Title: Sheet collator with alignment apparatus
Inventor: EDWARDS ROBERT J
IPC: B65H31/30
Filed: 1992-07-20
Granted: 2003-03-25
Abstract: An improvement in a collating machine for stacking sheets of paper fed seriatim from a singulating feeder in the same order as the sheets appear in the singulating feeder. The collating machine includes at least one upper belt and one lower belt fox frictionally engaging and transporting the sheets, and ramp structure for lifting a succeeding sheet of paper over and onto a preceding, stopped sheet to form a collation. The improvement comprises a device for stopping each of the sheets, including at least one straight, vertical member against which the leading edge of each sheet abuts while the collation is being accumulated. The ramp structure and the stopping device are the upstream and downstream ends of a stacking section in the collating machine. There is a device, adjacent the stopping device, for transporting the collation from the stacking section. The transporting device is engaged when a last sheet has been stacked to form the collation, wherein the stopping device withdraws to allow the collation to pass when the transport device is engaged.
Patent CA-2074815-C (CA)
Inventor: DUFF DANIEL H
IPC: A61M1/34
Filed: 1991-12-06
Granted: 2001-10-16
Abstract: A processing system (30) separates a cellular rich suspen-sion (32) into a cellular first constituent (36) and cellular-free sec-ond constituent (38). The system (30) includes a separation zone (40) that receives the cellular rich suspension (32) and discharges the first (36) and second constituents (38). The system (30) coord-inates the flow of cellular rich suspension (32) into the separation zone (40) with the flow of cellular-free second constituent (38) from the separation zone (40) to get a desired nominal separation efficiency. The system (30) also recirculates the cellular first con-stituent (36) back into the zone (40). By continuously recirculat-ing the cellular first constituent (36) back into the separation zone (40), the system (30) can get and maintain a desired volume of the first constituent (36), despite the volume of cellular rich suspen-sion (32) that is processed. By continuously recirculating the cel-lular first constituent (36) back into the separation zone (40), the system (30) also can provide operating conditions within the se-paration zone (40) that maximize separation efficiencies but that, without the benefits of recirculation, could otherwise damage or traumatize the cellular first constituent (36).
Patent CA-2076669-C (CA)
Title: Bulb geometry for low power metal halide discharge lamp
Inventor: THOMAS BRIAN J
IPC: H01J61/33
Filed: 1991-12-30
Granted: 2002-08-06
Abstract: A low-wattage metal-halide discharge lamp (10) has a tube (12) of the double ended type that forms a bulb (14) or envelope, a pair of electrodes, e.g., an anode (30) and a ca-thode (32), which penetrate into an arc chamber (16) inside the envelope (14), and a suit-able amount of mercury plus one or more metal halide salts. The electrodes are each formed of a refractory metal, i.e., tungsten wire, extending through the respective necks (22, 24) into the arc chamber (16). Heat transfer along the tube wall and through the necks (22, 24) is controlled by designing the bulb (14) wall so that the cross sectional areas at the necks (22, 24) and at quarter-chamber planes (52, 54) halfway between the necks (22, 24) and a midplane (50) have a respective quarter chamber loading factor and a neck loading factor each within a desired range. Lamps of this design achieve high efficacy at relatively low power, i.e., below 40 watts.
Patent CA-2079832-C (CA)
Title: Unit for actuating gates of a hopper railroad car
Inventor: GALVAN GUADALUPE LOZANO
IPC: B61D7/28
Filed: 1992-10-05
Granted: 2001-12-18
Abstract: One double acting cylinder is attached to the doors of a gate assembly via a linkage. A lock out system cooperates with the linkage whereby different parts of the linkage may be immobilized prior to the beginning of a work cycle. The work performed by the double acting cylinder thus passes through the free parts of the linkage to actuate one door ar the other.
Patent CA-2082368-C (CA)
Title: Biocidal decylnonyl and decylisononyl dimethylammonium compounds
Inventor: EASTMAN DAVID W
IPC: C02F1/50
Filed: 1992-11-06
Granted: 1997-11-11
Abstract: Quaternary ammonium compounds having the structural formula:                        (See fig. X) wherein X is chloride, bromide, iodide or alkyl carboxylate having a C1-C18 alkyl radical, and R is n-nonyl or isononyl.  The disclosed compounds were found to be non-toxic, low foaming, effective biocides in treatment methods for controlling bacteria, algae and molluscs in aqueous systems.
Patent CA-2083321-C (CA)
Title: Apparatus for manufacturing preforms for blow molding of bellows
Inventor: LINSS GERHARD
IPC: B29L31/26
Filed: 1992-11-19
Granted: 2002-01-08
Abstract: There are provided an apparatus and method for manufacturing a tube-like preform having a variable cross-section along its longitudinal extent for blow molding of a hollow body from a thermoplstic material, in which the plastic material is ejected into a recess of a collar die sitting on a tubular die, and a preform is produced during movement of the collar die away from the tubular die.      During movement of the collar die away form the tubular die, increase in speed of the collar die is controlled from zero on, and the variable cross-section of the exit opening of the tubular die is controlled in such a way that oscillating large and smaller cross-sections of the exit opening correspond to speed ratio of the collar die, so that the thickhenss of the produced preform changes from peaks to valleys in a wave-like manner.
Patent CA-2085489-C (CA)
Title: Liquid composition and process for treating aluminum or tin cans to impart corrosion resistance and mobility thereto
Inventor: AOKI TOMOYUKI
IPC: C23C22/68
Filed: 1991-06-13
Granted: 2000-12-12
Abstract: A corrosion resistant film with a low coefficient of friction that facilitates automatic conveying can be formed on the surface of tin-plated steel or of aluminum; particularly DI cans of one of these types of metal, by contacting the aluminum or the tin plated steel with an aqueous liquid composition having a pH in the range from 2.0 to 6.5 and containing: (A) from 1 to 30 g/L of phosphate ions, (B) from 0.1 to 10g/L of condensed phosphate ions, and (C) from 0.1 to 20 g/L as solids of a water-soluble resin component selected from the group of resins, including mixtures of resins, having general chemical formula (I) wherein n is an integer within the range from 10 to 80 inclusive; each of X and Y is independently selected from hydrogen or a group "Z" with formula (II); except that at least 15 % the total of all of the X and Y groups in this component of the composition are Z rather than hydrogen; and (II) wherein each of R1 and R2 in each of the phenyl rings in the formula independently is selected from the group consisting of alkyl groups containing from 1 to 10 carbon-atoms per group and hydroxyalkyl groups containing from 1 to 10 carbon atoms per group.
Patent CA-2085704-C (CA)
Title: Moving body camera
Inventor: YAMAGUCHI YOSHIHISA
IPC: G04F13/02
Filed: 1992-12-17
Granted: 1998-06-23
Abstract: A photographing mechanism for a moving body camera, namely a slit camera, utilized for judgement of an arrival order at a finish line of a race.  A light array consisting of vertically arrayed plural LEDs is located closed to a recording means.  A light emission control box illuminates and unilluminates the LEDs in response to dot data of characters to be recorded.  Hence, as the recording medium is rewound, it is exposed by the LEDs, so that the characters are recorded on the film.
Patent CA-2086122-C (CA)
Title: System for echo cancellation comprising a ghost cancellation reference signal
Inventor: KOO DAVID
IPC: H04N7/08
Filed: 1992-05-07
Granted: 2000-03-14
Abstract: A system for echo cancellation for use in particular in television receivers.  The system features a ghost cancellation reference signal which exhibits improved performance in noisy environments and which exhibits the flat and wide bandwidth necessary for effective channel characterization while exhibiting a higher and more evenly distributed amplitude versus time characteristic than that provided by known, non-cyclic ghost cancellation signals.
Patent CA-2087562-C (CA)
Title: Laser apparatus
Inventor: YAMAMOTO TAKASHI
IPC: H01S3/0975
Filed: 1993-01-19
Granted: 1998-04-21
Abstract: According to the present invention  there is provided a laser apparatus capable of efficient oscillation with an excitation power source with comparatively low frequency, wherein discharge is obliquely generated within the rectangular section of a discharge space.  There is also provided a laser apparatus with a pair of preliminary discharge excitation electrodes which can readily initiate discharge.  There is further provided a laser apparatus capable of efficient oscillation with an excitation power source with comparatively low frequency, wherein provided is a pair of discharge excitation electrodes located in the major side direction of discharge space whose length is more than three times as long as that of minor side direction thereof.  There is further provided a laser apparatus with a pair of discharge excitation electrodes whose dimension is smaller than that of a pair of dielectric plates, which apparatus can prevent undesirable discharge.  There is also provided a laser apparatus with more than three discharge spaces at least one of which is given a lower electric field having the apparatus oscillate efficiently.  There is further provided a laser apparatus with an improved oscillation efficiency wherein furnished are dielectric double pipes creating a substantially large discharge space.
Patent CA-2092577-C (CA)
Inventor: SPERTINI SEVERINO
IPC: C08G101/00
Filed: 1993-03-26
Granted: 2003-09-09
Abstract: Process for preparing a flexible polyurethane foam by reacting an isocyanate-containing prepolymer and an isocyanate-reactive composition comprising water in the presence of a dialkyl imidazole catalyst.
Patent CA-2096316-C (CA)
Title: Method for the manufacture of the derivatives of propionic acid
Inventor: AALTONEN OLLI
IPC: C07D303/48
Filed: 1993-05-14
Granted: 1998-07-28
Abstract: A method for the manufacture of optically active derivatives of epoxypropionic acid from racemic mixtures comprising, that a)   the racemic mixture is dissolved in carbon dioxide and the obtained solution is conducted through a chromatographic column and b)   the desired optical isomer of epoxypropionic acid is separated from the eluent.  In this manner optically active derivatives of epoxypropionic acid useful in the manufacture of optically pure isomers of drugs can be obtained.
Patent CA-2096424-C (CA)
Inventor: FERRAR CARL M
IPC: G02B6/00
Filed: 1991-12-16
Granted: 1998-11-03
Abstract: Gyroscope à fibres optiques muni d'un interféromètre de Sagnac de conception alternative minimale et modifié de telle sorte qu'il peut utiliser, en tant que source de lumière de l'interféromètre, une diode de laser de 0,8 micron de longueur d'onde et, pour la bobine de détection, une fibre unimodale de 1,3 micron.
Patent CA-2097750-C (CA)
Inventor: ALBERT KEVIN FRANCIS
IPC: B65H43/00
Filed: 1993-06-04
Granted: 1998-04-14
Abstract: A method for the continuous formation of a stack of folded products standing on edge includes feeding folded products to a stack of folded products standing on edge.  The stack is moved forward with a conveyor belt at a speed being matched to the feeding of the folded products to the stack.  An interruption in the continuous feeding of the folded products to the stack is detected.  A separating device is activated.          The conveyor belt is stopped for the duration of the interruption.          A device for the continuous formation of the stack of folded products includes a device for feeding the folded products in a stream to a stack of folded products standing on edge.  The stack is moved forward on a conveyor belt at a speed being synchronized with the feeding of the folded products to the stack.   At least one separating device contacts the folded products.  A sensor monitors the stream of folded products and supplies output signals.  A logic unit is connected to the sensor for recognizing an interruption in the stream of folded products from the output signals of the sensor.  The logic unit is connected to the conveyor belt and to the at least one separating device for activating the at least one separating device upon the occurrence of an interruption in the stream and for stopping the conveyor belt for the duration of the interruption.
Patent CA-2097767-C (CA)
Inventor: RORVIK KJELL ARNE
IPC: A23K1/18
Filed: 1993-06-04
Granted: 1999-04-13
Abstract: This invention relates to a feed giving enhanced effect of a pigment, and a method for optimizing the effect of the pigment in feed for salmonides.  The utilization factor for pigments in fish feed is surprisingly found to increase through a reduction of content of bio-available iron in the feed.
Patent CA-2099199-C (CA)
Inventor: SWEENY H DERMOT
IPC: E03D1/14
Filed: 1993-06-25
Granted: 1997-03-25
Abstract: The invention provides a device for reducing the volume of water flushed from a water closet. A rectilinear container has front, rear, side and bottom walls. An elongated suspension member has a hook at an upper end thereof for engaging the rim of the water closet and at its lower end it can engage bearing means on one of the rear or side walls of the container to suspend the container within the water closet. The volume of the container can be adjusted since one of the front or side walls has a lower fixed portion and an upper sliding portion, the sliding portion being vertically slidable relative to the fixed portion. The normal flush volume of the water closet is reduce by the volume of the container, thereby saving water.
Patent CA-2099385-C (CA)
Inventor: HOLONYAK NICK JR
IPC: H01S5/22
Filed: 1991-06-24
Granted: 2001-10-16
Abstract: A method of forming a native oxide from an aluminum-bearing Group 111-V  semiconductor material is provided. The method entails exposing the aluminium-bearing Group III-V semiconductor material to a water-containing environment and a temperature of at least about 375 °C to convert at least a portion of said aluminum-bearing material to a native oxide character-ized in that the thickness of said native oxide is substantially the same as or less than the thickness of that portion of said alumi-num-bearing Group III-V semiconductor material thus converted. The native oxide thus formed has particular utility in electrical and optoelectrical devices, such as lasers.
Patent CA-2099736-C (CA)
Inventor: DARSEY RALPH JOEL
IPC: G02B6/00
Filed: 1993-06-29
Granted: 1997-09-23
Abstract: An optical fiber package (15) includes a support surface such as a hub of a bobbin (17) for convolutions of a length of optical fiber. The optical fiber includes a light transmitting portion such as a core and a cladding with inner and outer layers of coating material disposed thereabout. The coating material comprises an ultraviolet light curable material. Disposed throughout the curable coating material of the outer layer is an adhesive constituent which after having been solidified by the exposure of the optical fiber to ultraviolet light energy and subsequent to the winding of the optical fiber into a package for use in high speed payout is subjected to heat treatment to cause the adhesive constituent of each convolution to become tacky and cause the convolutions to be tacked together. The adhesion between adjacent convolutions is less than that between inner and outer layers of the coating materials and that between the inner layer and the cladding. As a result, the convolutions are held together in the package to provide a stable package but during payout separate without causing delamination of the layers of coating material.
Patent CA-2101282-C (CA)
Inventor: BLAZEK KENNETH E
IPC: B22D27/02
Filed: 1993-07-26
Granted: 1999-09-21
Abstract: A non-magnetic material having a relatively high electrical resistance, such as austenitic stainless steel, is used for the material of construction of the mold utilized in a conventional continuous casting apparatus, or in a rheocasting apparatus or in a continuous strip casting apparatus.
Patent CA-2106460-C (CA)
Inventor: SABEE REINHARDT N
IPC: D04H13/00
Filed: 1991-09-03
Granted: 2001-07-10
Abstract: A low cost, high web integrity fabric (44) that can be economically produced and tailored to provide a variety of different combinations of characteristics and pro-perties for different end uses. It is a fabric wherein the strength in any direction can be predetermined and also wherein the elasticity in any direction can be varied in a predetermined fashion. It is also a fabric that combines continuous filaments (16), ranging from elastomeric to non-elastic but elongatable to at least a minimum extent, for strength and elasticity with the predetermined indepth intermingling of fibrous melt blown webs (22, 28) for interlocking of the said continuous filaments in the for-mation of the integrated, fibrous and continuous filament matrix.
Patent CA-2110248-C (CA)
Inventor: KURRASCH ANDREW J
IPC: A47B47/02
Filed: 1993-11-29
Granted: 2001-05-15
Abstract: A cabinet having a wall comprising an inner wall and an outer wall attached to the inner wall. A strengthening piece or material is positioned between the inner wall and the outer wall in said cavity to provide strength and rigidity to the wall. Preferably, the strengthening piece or material has a honeycomb structure.
Patent CA-2111559-C (CA)
Title: Finely divided, highly pure neutral zinc oxide powder, a process for its preparation and its use
Inventor: MIKSITS MICHAEL
IPC: C01G9/02
Filed: 1993-12-15
Granted: 2004-02-24
Abstract: The invention relates to finely divided, highly pure neutral zinc oxide powder used for UV protection in cosmetic sun screen preparations and daytime skin care preparations as well as in lacquers and plastics, and to a process for its preparation.
Patent CA-2121387-C (CA)
Inventor: HOLTINGER LILLEMOR
IPC: D21C9/10
Filed: 1994-04-15
Granted: 1998-06-30
Abstract: In a method for bleaching lignocellulose-containing pulp with a peroxide-containing compound, the pulp is, prior to the bleaching and in optional order, subjected to acid treatment at a pH of up to about 5 and treated with a complexing agent in order to release transition metal ions from their positions in the pulp. After the acid treatment, a magnesium compound and a calcium compound are added to the pulp at a pH of from about 3,5 to about 8 in order to reintroduce an optimum amount of magnesium and calcium ions into the pulp. The pulp is then bleached with a peroxide-containing compound at a pH of from about 7 to about 13.
Patent CA-2129823-C (CA)
Title: Myotonic dystrophy
Inventor: KORNELUK ROBERT G
IPC: C12Q1/68
Filed: 1993-02-18
Granted: 1999-11-30
Abstract: Diagnostics and procedures are provided for detecting myotonic dystrophy in humans. The diagnostics and procedures are based on the detection of a CTG trinucleotide repeat in a variable length polymorphism of the myotonic dystrophy gene derived from the region of human chromosome 19q13 containing the myotonic dystrophy locus.
Patent CA-2145147-C (CA)
Inventor: CERVO GERARD
IPC: A44C7/00
Filed: 1995-03-21
Granted: 2001-09-11
Abstract: An earring insert is provided for a pierced earlobe and other pierced parts of the anatomy having an orifice therethrough. The insert consists of a first sleeve that is inserted into the orifice of the pierced earlobe and other pierced parts of the anatomy. A first flange extends about an outer end of the first sleeve. A second sleeve is inserted into the first sleeve. A second flange extends about an outer end of the second sleeve. A friction post and ear wire of a pierced earring can extend through the second sleeve to eliminate chaffing of the orifice, while at the same time prevent the orifice from closing, when the pierced earring is removed for a long period of time.
Patent CA-2149879-C (CA)
Inventor: KUZNICKI WILLIAM JOSEPH
IPC: H04L7/04
Filed: 1993-11-08
Granted: 1999-04-13
Abstract: Un récepteur (106) d'appels sélectif reçoit un ou plusieurs paquets de messages d'un message fragmenté transmis. Chacun des paquets de cette pluralité de paquets de messages comprend une adresse (1605) et des données (1610) de messages, les données (1610) de messages comprenant une indication (1702) permettant de savoir si plusieurs paquets de messages doivent être réceptionnés pour le message fragmenté. Le récepteur (106) d'appels sélectif reçoit une adresse de chaque paquet de messages et met ensuite en corrélation (2908) l'adresse avec une ou plusieurs adresses prédéterminées. Après une corrélation (2908) efficace, le récepteur d'appels sélectif (106) décode les données de messages (1610) de chaque paquet de messages, et mémorise ensuite successivement (2928, 2936, 2942) les données (1610) de messages décodés afin de reconstituer le message fragmenté. Le récepteur (106) d'appels sélectif détermine que le message fragmenté est complètement reconstitué après détection (2918), dans les données (1610) de messages décodés, d'une indication (1702) signalant que plus aucun paquet de messages pour le message fragmenté n'est à réceptionner.