baber/WOPTO huggingface dataset:
Patent CA-2068152-A1 (CA)
Title: Method for producing articles by chemical vapor deposition and the articles produced therefrom
Inventor: MOWREY WILLIAM L
IPC: B24C5/04
Filed: 1992-05-07
Abstract: RD-21,163 An Improved Method for Producing Articles by Chemical Vapor Deposition and The Articles Produced Therefrom An improved method of producing diamond articles by chemical vapor deposition and a funnel shaped diamond water-jet mixing tube made therefrom. The method comprises machining an appropriate funnel shape on a graphite substrate, chemical vapor depositing tungsten on the shape to produce a hollow mandrel, separating the mandrel from the substrate, chemical vapor depositing diamond on the mandrel and etching out the mandrel to produce the free standing funnel shaped diamond mixing tube.
Patent CA-2069990-A1 (CA)
Inventor: FUJITA NORIYUKI
IPC: H04B1/04
Filed: 1992-05-29
Abstract: A radio frequency (RF) amplifier for amplifying an RF signal with a high power efficiency and with a minimum of signal distortions by using a GaAs field effect transistor (FET).  An idling current for class "A" amplification is set in the FET.  An output low pass filter is connected to the drain of the FET and provided with an impedance higher than a high gain impedance, so that the FET and a load may be matched in power during high RF signal operation, i.e., the dynamic impedance of the FET and the impedance of the load may be matched.          A drain bias to the FET is turned on and turned off in synchronism with the ON/OFF of the input RF signal.          The amplifier, therefore, not only performs class "A" amplification with a minimum of signal distortions but also further saves power since it is turned off in the absence of a signal, thereby achieving a higher power efficiency.
Patent CA-2070387-A1 (CA)
Title: Collapsible arthropodicidally-active foam matrix and method of manufacture
Inventor: HAGARTY JOHN D
IPC: B65D83/28
Filed: 1990-05-21
Abstract: A novel arthropodicidally-active composition-of-matter is disclosed. Such a composition-of-matter comprises an aqueous lower alkanol solvent, and a toxicant as well as an emulsifier, both contained within the solvent. The amount of emulsifier, relative to the amount of solvent, is effective for forming a foam matrix that is able to collapse after a predetermined period of time thereby to form an athropodicidally-active film. Also disclosed are methods for producing such an arthropodicidally-active film.
Patent CA-2072021-A1 (CA)
Inventor: DICKIE ROBERT G
IPC: A61B1/31
Filed: 1990-12-07
Abstract: A vaginal speculum is disclosed in which a ratcheted linear motion of a thumb pad is translated into a complicated linear, rotational and retractive motion of the speculum paddles to provide anatomically correct motions for dilation of the vagina and the cervix without complicated two-handed adjustments of the speculum. Cam follower pins follow the contours of a cam slot to translate the linear motion into the required complicated motions of the speculum paddles. The ratchet permits easy locking at any degree of opening while unlocking is accomplished simply by depressing the thumb pad to disengage the pawl from the ratchet bars. A fluid reservoir is built into the speculum to capture fluids discharged during examination.
Patent CA-2072039-A1 (CA)
IPC: G06Q10/04
Filed: 1992-06-23
Abstract: A method of optimizing the yield of useful material cut from a piece of raw material, such as lumber, includes considering different cutting options for cutting the piece, identifying different potential yields obtainable for each cutting option, determining the relative probability of obtaining each potential yield, and determining the-relative value of each cutting option, preferably by averaging the potential yields for that option where each potential yield is statistically weighted by its relative probability.  By comparing the relative values, the highest-valued cutting option is identified and cutting of the piece is performed in accordance with such option.  The relative probabilities for the respective possible yields are preferably deter-mined by empirically measured statistical attributes that characterize the uncertain variables that affect these yields and by grouping the uncertain variables into statistically significant classes, each class correspond-ing to a respective yield, where the relative frequency of each class is determined from the underlying statis-tical attributes.  Alternatively, the relative probabil-ities are determined by using statistical attributes that are based on a statistically expected distribution.
Patent CA-2074479-A1 (CA)
Title: Arrangement for reduced power supply
Inventor: ARRAS JUHO
IPC: H04M19/00
Filed: 1991-02-11
Abstract: ABSTRACT OF THE DISCLOSURE       An arrangement for feeding the subscriber's lines (10) of a public exchange with reduced line current upon the occurrence of a power failure, when the temperature within the public exchange or the temperature of individual components, mounted on circuit boards on which line interface circuits are present, exceeds a predetermined reference value, when the length of a subscriber's line is less than a line length reference value, or when the conversation time on a subscriber's line exceeds a conversation time reference value.  All subscriber's lines or individual subscriber's lines only are fed with the reduced line current for a restricted time.
Patent CA-2075156-A1 (CA)
Title: Digital encoder with dynamic quantization bit allocation
Inventor: AKAGIRI KENZO
IPC: H04B1/66
Filed: 1992-07-31
Abstract: Abstract A digital encoder for compressing a digital input signal derived from an analog signal to reduce the number of bits required to represent the analog signal with low quantizing noise. In the encoder, a digital input signal representing the analog signal is divided into three frequency ranges. The digital signal in each of the three frequency ranges is divided in time into frames, the time duration of which may be adaptively varied. The frames are orthogonally transformed into spectral coefficients, which are grouped into critical bands. The total number of bits available for quantizing the spectral coefficients is allocated among the critical bands. In a first embodiment and a second embodiment, fixed bits are allocated among the critical bands according to a selected one of a plurality of predetermined bit allocation patterns and variable bits are allocated among the critical bands according to the energy in the critical bands. In the first embodiment, the apportionment between fixed bits and variable bits is fixed. In a second embodiment, the apportionment between fixed bits and variable bits is varied according to the smoothness of the spectrum of the input signal. In a third embodiment, bits are allocated among the critical bands according to a noise shaping factor that is varied according to the smoothness of the spectrum of the input signal. All three embodiments give low quantizing noise with both broad spectrum signals and highly tonal signals.
Patent CA-2076462-A1 (CA)
Title: Method of forming semi-solidified metal composition
Inventor: MORITAKA MITSURU
IPC: B22D23/00
Filed: 1992-08-20
Abstract: METHOD OF FORMING SEMI-SOLIDIFIED METAL COMPOSITION          ABSTRACT OF THE DISCLOSURE         When a semi-solidified metal composition is formed in a forging die assembly, it is formed under conditions satisfying particular mass fraction solid and flowing rate in the die and then held under a given pressure until the metal composition is completely solidified.  According to the invention, a starting material is formed under conditions that a mass fraction solid of the starting material at a time of starting the forging is 0.2-0,8 and a flowing rate of the starting material in a filling region of a die assembly is not less than 3.5 m/sec and then held under a pressure of not less than 6 kg/mm2 until the starting material is completely solidified after the filling in the die assembly.  By this method, a macrosegregation is avoided and a structure having a uniform composition can be obtained.
Patent CA-2078057-A1 (CA)
Title: Substituted aminopropanes, processes for their preparation, and their use
Inventor: KIRSCH REINHARD
IPC: C07D301/02
Filed: 1992-09-11
Abstract: Abstract of the disclosure Substituted   aminopropanes,   processes   for   their preparation, and their use Compounds of the formula I                 can be used for the treatment and for the prophylaxis of fungal diseases. They are obtained by reacting II                            II   with III                                         III   to give IV                      (IV) and by reaction with a nucleophile M-NR(2)R(3),
Patent CA-2078745-A1 (CA)
Title: Distillation tower and sidestream stripper therefor
Inventor: EAGAN JAMES D
IPC: B01D3/14
Filed: 1992-09-21
Abstract: ABSTRACT OF THE DISCLOSURE:        A distillation tower  (1) has  a plurality  of liquid  side-stream lines (5, 6,  7) and  a multi-stage  sidestream stripper  (13) which includes a respective  stripping section (14,  15, 16) for  each sidestream line housed  in a common,  upright, cylindrical shell  (28) which allows vapor to  pass freely from each  stage to the one  above. Partial vaporization  of each  sidestream is  achieved by  applying  a vacuum to the top of the stripper shell (point 21) and/or introducing strip gas at the bottom (point 20).  Because the vapor passes serially through the stripping sections from the bottom of the stripper (13) to the top, the  need to  supply strip  gas separately  to the  stripping sections and/or apply vacuum individually is avoided.  The  separation between the  sidestream products  is improved  by including,  in  each stage,  a  rectification  zone  (22,  23,  24)  positioned  above  the stripping section.
Patent CA-2078990-A1 (CA)
Title: Phospholipid-coated microcrystals: injectable formulations of water-insoluble drugs
Inventor: HAYNES DUNCAN H
IPC: A61K47/14
Filed: 1991-04-23
Abstract: Water-insoluble drugs are rendered injectable by formulation as aqueous suspensions of phospholipid-coated microcrys-tals. The crystalline drug is reduced to 50 nm to 10 um dimensions by sonication or other processes inducing high shear in the presence of membrane-forming amphipathic lipids. The membrane-forming lipid stabilizes the microcrystal by both hydrophobic and hydrophilic interactions, coating and enveloping it and thus protecting it from coalescence, and rendering the drug in solid form less irritating to tissue. Additional protection against coalescence is obtained by a secondary coating by additional mem-brane-forming lipid in vesicular form associated with and surrounding but not enveloping the lipid-encapsulated drug particles. Tissue-compatible formulations containing drug in concentrations up to 40 %  (w/v) are described.
Patent CA-2082050-A1 (CA)
Title: Ultrasensitive microtrace procedure for monitoring the origin movement and fate of any liquid or solid material
Inventor: SLATER JAMES H
IPC: C12Q1/6804
Filed: 1991-05-07
Abstract: A method of monitoring the movement of a material which comprises adding to the material, as a microtrace additive, DNA molecules, sampling the resulting material after movement thereof and detecting the presence of said microtrace additive in the sample. The method is particularly suitable for use in monitoring the movement of oil shipments and the microtrace additive is selected such that it will remain in the oil phase in the event the oil is dispersed in water e.g. sea water.
Patent CA-2083003-A1 (CA)
Inventor: SUHOZA RICHARD A
IPC: C08K5/18
Filed: 1992-11-16
Abstract: Polyether polyols and polyurethane foams are stabilized by including therein a stabilizer composition of (a) tetrakis[methylene-(3,5-di-tert-butyl-4-hydroxyhydrocinnamate)]methane and (b) a reaction product of diphenylamine and diisobutylene wherein the molar ratio of the amine to the diisobutylene is 1:1.1 to 1:2.5. The stabilizer composition may contain a third synergistic component, phenothiazine or certain alkyl derivatives of phenothiazine. The stabilizer composition may further contain trihydrocarbyl phosphite to stabilize the color of same.
Patent CA-2083102-A1 (CA)
Title: Two-component polyurethane reactive compositions
Inventor: TRINKS RAINER
IPC: C08K5/3445
Filed: 1992-11-17
Abstract: Mo-3819 LeA 28,435 TWO-COMPONENT POLYURETHANE REACTIVE COMPOSITIONS   ABSTRACT OF THE DISCLOSURE      Disclosed herein are two-component polyurethane reactive compositions containing polyisocyanates and components carrying active hydrogen which are stabilized against separation with a compound in solution containing a NH group or NH2 group and a C-N multiple bond or N-N multiple bond.
Patent CA-2083137-A1 (CA)
Inventor: STOBBY WILLIAM G
IPC: C08J9/14
Filed: 1991-05-01
Abstract: Flame retardant alkenylaromatic thermoplastic resin compositions are provided comprising 100 parts alkenylaromatic polymer, 0.2 to 5 parts of at least one brominated aliphatic compound, 0.5 to 3 parts of at least one other and different brominated organic compound having a higher volatilization temperature and greater heat stability than said brominated aliphatic compound and from 0.05 to 5 parts of at least one melt flow promoter.
Patent CA-2083741-A1 (CA)
Title: Protein nonadsorptive membranes for wound dressings
Inventor: BRAATZ JAMES A
IPC: A61L15/26
Filed: 1992-11-25
Abstract: ABSTRACT OF THE INVENTION     Controlled release membranes are disclosed which are characterized by their biocompatibility and resistance to nonspecific protein adsorption.  The membranes are particularly useful for delivery of proteinaceous materials in drug-delivery systems, i.e., wound dressings.  Also disclosed are novel biocompatible, protein-nonadsorptive hydrated polymers and method of producing the same.
Patent CA-2085430-A1 (CA)
Inventor: WU MANN Y
IPC: C25D11/34
Filed: 1992-12-15
Abstract: The present invention relates to a method of adhering a colored electroplating layer on zinc-electroplated steel articles. The method utilizes an alternating current power supply which supplies electricity of frequency of 10-120 Hz, and uses an aqueous electroplating solution which contains 150-200 g/l of silicate, 15-20 g/l of sodium hydroxide and 5-50 g/l of a metal salt. The electroplating liquid is kept at a constant temperature of 20°C - 30°C. In this method, two stages are utilized to perform the electroplating and adhere a colored electroplated layer so that the surface of the zinc-electroplated layer can adhere a blue electroplated layer. In the first stage, the electricity is applied at a constant voltage lying in the range 60-120 volts and in the second stage the electricity is applied at a constant current density in the range 20-80 Amps/dm2. Thus the aesthetics and the corrosion-resistant capability of the zinc-electroplated layer can be enhanced because of the colored electroplated layer adhered to the surface of the zinc-electroplated layer. In the method mentioned hereinabove the metal salt can be selected from cobalt salts at 5-50 g/l, manganese salts at 5-20 g/l, chromium salts at 5-15 g/l, iron salts at 2-15 g/l, and tin salts at 20-g/l so that the adhered color of the surface of the zinc-electroplated layer would be blue, brown, green, white, or grey color respectively.
Patent CA-2086011-A1 (CA)
Title: Procede et systemes catalyseur-inhibiteur pour la preparation de poly(terephtalate de 1,4-cyclohexenedimethylene)
Inventor: SUBLETT BOBBY J
IPC: C08G63/85
Filed: 1991-06-25
Abstract: Procédé d'obtention de polyesters de diméthyltéréphtalate avec le 1,4-cyclohexanediméthanol, au moyen d'un catalyseur comprenant un alkoxyde de titane et un sel d'un métal alcalino-terreux.
Patent CA-2087054-A1 (CA)
Title: Means and method for highly controllable lighting
Inventor: GORDIN MYRON K
IPC: E01F9/615
Filed: 1993-01-11
Abstract: A highly controllable way to light target areas includes a primary reflector (34) which generates a defined primary beam (40) in association with a light source (30). The primary beam (40), or at least a portion of the primary beam, is directed onto a secondary reflector (42) which generates a secondary beam (44) to the target space. The secondary reflector (42) can be configured in any number of contours, shapes, specularities, or other characteristics to alter and control the characteristics of the secondary beam (44).      Various options, alternatives, and features are possible with the invention. For example, a plurality of light sources (30) and primary reflectors (34) can be used with one secondary reflector (42). The surface of the secondary reflector (42) can be corrugated to have alternating segments to direct light in different directions. A combination of light source (30), primary reflector (34), and secondary reflector (42) can also be positioned on a moveable base. A plurality of secondary reflectors (42) and light sources (30) and primary reflectors (34) can be positioned on one moveable base and can be oriented in different configurations for different lighting effects.      The invention can be used to light a variety of areas, including highways, spectator events and locations where significant control of light is needed.
Patent CA-2087409-A1 (CA)
Title: Non-phosphate dishwashing composition and citrate method therefore
Inventor: ALLEN REBECCA
IPC: C11D3/386
Filed: 1993-01-15
Abstract: ABSTRACT          A substantially dry, water-soluble composition is provided that is useful for hard surface cleaning in the presence of water without the necessity of phosphate builders.  The composition comprises a sequestering agent formed by intimately admixed particles of a carbonate salt and a hydrocarboxylic acid salt, such as citrate, where the salts have a common alkaline metal cation.  This sequestering agent is preferably formed during the composition preparation.  The composition further includes an anti-redeposition agent, an alkaline metal silicate, a non-ionic surfactant, and an enzyme system.
Patent CA-2089580-A1 (CA)
Title: Water ride with water propulsion devices
Inventor: LOCHTEFELD THOMAS J
IPC: A63G21/18
Filed: 1991-08-15
Abstract: A method and apparatus for controllably injecting, subsequent to the start of a water ride, a high velocity water flow (30) over the water ride surface (25). A rider (29) (or vehicle) that rides into such injected flow (30), as a result of water-to-rider mo-mentum transfer, either be accelerated, matched, or decelerated in a downhill, horizontal or uphill straight or curvilinear direction by such injected flow (30). Flow emitting nozzles (24) can be either positioned above, along side, or from any position along the length of the water ride surface (25).
Patent CA-2092108-A1 (CA)
Title: Halichondrins
Inventor: GRAVALOS DOLORES G
IPC: A61K31/35
Filed: 1993-03-22
Abstract: ABSTRACT     Halichondrin derivatives, isolatable from a marine sponge of the Lissodendyx Sp., have cytotoxic preparations and are of the formula:-  in which R1 and R2 together represent a group of the formula:                                                           or    .
Patent CA-2093588-A1 (CA)
Inventor: GELLERT JOBST U
IPC: B29C33/38
Filed: 1993-04-07
Abstract: Injection molding apparatus wherein a torpedo is mounted in the front end of a heated nozzle. The torpedo has spaced blades extending inwardly from an outer collar to an elongated shaft which extends centrally in the melt bore. The torpedo shaft has an elongated central portion which is securely press fitted in a steel outer sleeve from which the blades extend. The elongated central portion of the torpedo shaft extends forwardly into the gate, and is formed of an engineered ceramic such as silicon carbide which is very thermally conductive as well as abrasion and corrosion resistant. In one embodiment, the gate extends through a gate insert which is also formed of a thermally conductive and abrasion and corrosion resistant engineered ceramic material.
Patent CA-2093900-A1 (CA)
Title: Dental Implant Having Cutting Means
Inventor: KWAN NORMAN H K
IPC: A61C8/00
Filed: 1993-04-13
Abstract: An anchor pin for securing an artificial tooth or dental prosthesis to the bone of a patient, having a plurality of cutting flutes disposed about the periphery of a top portion of the pin. The cutting flutes have a substantially right-angled cutting surface perpendicular to the direction of rotation of pin when inserted into the patient's bone, which shaves bone fragments from the bone to allow countersinking of the top portion of the pin within the patient's bone, and which also create and direct such bone fragments to strategic areas of the pin to assist in bone growth around the anchor pin which will prevent removal and loosening of the pin from the bone.
Patent CA-2095467-A1 (CA)
Title: Poultry washing apparatus and method
Inventor: LEECH JEFFREY L
IPC: A23L13/50
Filed: 1993-06-24
Abstract: An apparatus used for reducing the amount of pathogenic bacteria associated with a bird or other edible animal, and preferably chickens, comprising: (a) a unit having an interior portion having side and bottom walls, an exterior portion having side and bottom walls and end walls connecting said interior portion to said exterior portion wherein the area of said interior portion provides a space which completely surrounds one or more of the birds or animals being treated; (b) one or more deluge nozzles mounted within said interior portion of said unit and connected to a source of a bacteria reducing chemical solution to enable the bacteria reducing chemical solution to be applied to the entire interior of the body cavity of the bird or animal being treated; (c) one or more spray nozzles mounted within said interior portion of said unit and connected to a source of a bacteria reducing chemical solution to enable the bacteria reducing chemical solution to be applied to the entire external surfaces of the bird or animal being treated; (d) one or more lines for connecting said one or more deluge nozzles and said one or more spray nozzles to the source of the bacteria reducing chemical solution; and (e) one or more connectors for connecting the exterior portion or end walls of said unit to an existing overhead conveyor located within the facility where the bird or animal is being treated; and the process for using the apparatus are provided.
Patent CA-2099685-A1 (CA)
Title: Focused Ion Beam Implantation Apparatus
Inventor: NAKAMURA TAKAO
IPC: H01J37/317
Filed: 1993-06-29
Abstract: A focused ion beam implantation apparatus comprises a vacuum chamber, an ion source generating an ion beam, a means for accelerating the ion beam, a means for eliminating unwanted ion species in the ion beam, and a means for focusing the ion beam on a target. The apparatus further includes a means for scanning the ion beam relative to the target and means for inclining the ion beam relative to the target.
Patent CA-2102776-A1 (CA)
Inventor: FUND RAISER PRODUCTS INC
IPC: G07F11/16
Filed: 1993-11-09
Abstract: Précis Dans une boîte pour distribuer des billets à fenêtre ou des billets gratteux, déjà sur le marché, on sait que la boîte est facile à ouvrir et ne tient pas compte du nombre de billets qui se trouvent à l'intérieur et du nombre de billets qui se sont vendus durant la journée. Dans la présente invention, la machine distributrice de billets est munie d'un glissoir qui tire un billet à la fois dans une fente calculée en fonction de l'épaisseur du billet. Cette invention possède également un compteur de billets qui permet au vendeur de contrôler de façon précise le nombre de billets vendus lors d'une journée.