baber/WOPTO huggingface dataset:
Patent CA-2045069-A1 (CA)
Inventor: MURAKAMI TAKASHI
IPC: H01S5/223
Filed: 1991-06-20
Abstract: A semiconductor laser producing visible  light includes a first conductivity type GaAs substrate, a first conductivity type (AlwGa1-w)0.5In0.5P cladding layer disposed on the substrate a (AlzGa1-z)0.5In0.5P active layer disposed on the first conductivity type cladding layer wherein O ? z  <  w,  a  second  conductivity  type  (AlwGa1-w)0.5In0.5P cladding layer having a lattice constant and disposed on the active layer, a first conductivity type In1-xGaxAs1-yPy current blocking layer disposed on part of the second conductivity type cladding layer wherein Y is approximately equal to -2x + 2, 0.5 ? x <1, and 0 < y ? 1 so that the lattice  constant  of  the  current  blocking  layer  is substantially the same as the lattice constant of the second  conductivity  type  cladding  layer,  a  current concentration and collection structure in contact with the second conductivity type cladding layer for concentrating current flow in a central part of the active layer, and first and second electrodes disposed in contact with the substrate and the current concentration and collection structure, respectively.
Patent CA-2045651-A1 (CA)
Inventor: SPAIN PATRICK L
IPC: B44F9/02
Filed: 1990-10-17
Abstract: A process for making plastic siding panels, such as outdoor weatherable vinyl panels with an embossed wood grain pattern, comprises extruding a vinyl sheet, and overlaying on the extruded sheet a flexible carrier sheet having coated thereon (a) matte release layer bonded to the carrier sheet, and (b) decorative coating on the matte release layer facing toward the extruded plastic sheet.  An embossing roll applies pressure at elevated temperatures to transfer the decorative coating from the matte release layer and bond it to the extruded sheet, while the embossing roll embosses a three-dimensional impression pattern in the laminate transferred to the extruded sheet.  The carrier sheet and its matte release layer are then released from the laminate transferred to the vinyl sheet.  The matte release layer transfers a low 75° gloss level, preferably in the range of 8 to 12 gloss units, while enabling free release of the carrier from the embossed low gloss surface at elevated temperatures. In one embodiment, a multi-layer wood grain printed acrylic/polyvinylidene fluoride blended decorative coating is simultaneously transferred to a vinyl extrusion and embossed with a three dimensional wood grain texture.  A color coat behind wood grain print coats contains pigment at a level that protects the vinyl substrate from UV deterioration.  The matte release layer contains a suspended wax which enhances forming the low gloss surface while improving release of the matte release layer from the transferred laminate.  A silicone resin in the matte release coat combines with the wax to further enhance release properties.
Patent CA-2045949-A1 (CA)
Title: Bulk goods dispenser
Inventor: JOHNSON MATS
IPC: A47F1/03
Filed: 1991-06-28
Abstract: ABSTRACT OF THE DISCLOSURE      A dispensing apparatus comprising a product bin for storing the food product, and a regulator for controlling the flow of the food product.  Extending through an aperture in the front of the apparatus is a raking member, by which the product may be manipulated along an inclined front panel into a dispensing unit.  The product may then be dispensed by operation of a hinged and weighted front door, which form a dispensing spout when opened.  The dispensing apparatus may further comprise a funnel assembly which acts in concert with the regulator panel to control the speed of the food product entering into the product bin.
Patent CA-2046335-A1 (CA)
Title: Forming a metal coating
Inventor: COX MICHAEL
IPC: B22F9/26
Filed: 1990-02-01
Abstract: This invention relates to a method of forming a metal coating on a surface. According to one version of the invention, the method comprises decomposing at the surface a vapour comprising: a first volatile compound between a first metal and a polydentate reagent, and a second volatile compound between a second metal and the same or another polydentate reagent, the reagent(s) being volatile, whereby the metals are co-deposited on the surface. In other versions of the invention, the compounds can be applied to the surface in the liquid phase, in the form of a paint. Such a paint need contain only one metal.
Patent CA-2046498-A1 (CA)
Title: Automatic headlamp dimmer
Inventor: MICHAELS PAUL A
IPC: G01J1/06
Filed: 1991-07-09
Abstract: AUTOMATIC HEADLAMP DIMMER                   ABSTRACT OF THE DISCLOSURE         A vehicle light sensor for controlling light responsive systems  such as an automatic headlamp dimmer.   The sensor includes an enclosure containing a lens and a photo responsive detector.   An optical chamber within the enclosure permits unwanted light from reaching the detector.  A series of baffles within the chamber prevent light from outside a desired entrance angle from reaching the detector.   A thin-film aperture is attached to the detector for controlling the size and shape of the detector's field of view.  Gray scale shading may also be incorporated  into the  aperture to reduce  the  intensity of incoming light in selected portions of the field of view.  An adjustment mechanism provides very fine angular view adjustments, beyond what is practical by simple assembly of molded parts.
Patent CA-2048224-A1 (CA)
Title: Process for selecting hetero-geneous plastic material coming from recovery into homogeneous fractions and apparatus useful to the purpose
Inventor: VEZZOLI ANNIBALE
IPC: B03B5/44
Filed: 1991-07-31
Abstract: Abstract A process for selecting heterogeneous plastic ma-terial coming from industrial and/or town recovery, into homogeneous fractions at least as regards the specific gra-vity, which comprises feeding the plastic material to a selection tank  equipped with a plurality of collecting areas  arranged on its bottom, operating with a selective liquid stream flow in an essentially closed cycle.
Patent CA-2048938-A1 (CA)
Title: Method for making insulation by sequentially utilizing apparatus for opening fibers
Inventor: MUNCRIEF PAUL M
IPC: D04H1/42
Filed: 1991-08-12
Abstract: ABSTRACT    A method and apparatus for producing a low density thermal insulation batt. The batt includes binder fibers which have been softened to adhere to and interconnect insulative fibers in the batt, and also includes short stilt fibers which interconnect and space apart the insulative fibers to define interstitial air pockets intermediate the insulative fibers.
Patent CA-2050519-A1 (CA)
Title: Method for processing compacted data
Inventor: TURCHECK STANLEY P JR
IPC: G01N21/93
Filed: 1991-09-03
Abstract: ABSTRACT OF THE DISCLOSURE  A method   for   processing   compacted  data without converting the data into  uncompacted  form.   A first  set  of  digital  data  is converted into compact form by recording a set of points at  which  the  signal level   changes.   A second  set  of  digital  data  is likewise converted into compact form  by  recording  the points  of  signal  level  change.   A logic function is then used to compare  the  first  set  of  compact  data with the second set of compact data.
Patent CA-2050816-A1 (CA)
Title: Stoma creator gastrostomy device and method for placement of a feeding tube
Inventor: CLEGG ROBERT D
IPC: A61M25/08
Filed: 1991-09-06
Abstract: A stoma creator is provided comprising a flexible tube having a first opening, a tapered dilator portion having a second opening, the diameter of the first opening being greater than the diameter of the second opening, and a connecting portion. The stoma creator has a tapered dilator having a side wall which gently tapers from approximately 5 French to 14 French. The method for using the device of this invention comprises the steps of securing the stomach to the abdominal wall through he use of T-fasteners, inserting a needle percutaneously into the gastric lumen, passing a guidewire through the needle, grasping the guidewire with the endoscope and bringing it out through the mouth, threading the tapered dilator over the guidewire and passing the stoma creator down the throat into the stomach then out through the abdominal wall, using the guidewire to pull the stoma creator down the throat through the stomach and out through the abdominal wall, cutting off the tapered dilator and connecting portion, passing a gastrostomy tube through the flexible tube, with the gastrostomy tube having a balloon adjacent its tip, removing the flexible tube and filling the balloon. A similar alternative method is also disclosed.
Patent CA-2051541-A1 (CA)
Title: Fluidic flowmeter
Inventor: IKEDA HIDEAKI
IPC: G01F1/32
Filed: 1991-09-17
Abstract: ABSTRACT    The present invention is directed to a flowmeter for measur-ing a flow rate comprising a flowmeter body having a hollow and rectangular cross-section and a center axis.  The flowmeter body comprises a front wall and a rear wall for defining an expander section therebetween, an inlet nozzle formed at the -front wall, a target having a front surface and an axis, and a throttle portion formed at the rear wall.  The front wall and the axis of the target are respectively perpendicular to the center axis of the flowmeter body.  The inlet nozzle and the throttle portion have the same axis as the flowmeter body.  The flowmeter body is formed so that, in a cross section perpendicular to the target, a circular arc defined by extending from one of the outlet edges of the inlet nozzle tangentially thereto, and passing on an edge of the target on the opposite side of the center axis to the outlet edge, further extends to cross the rear wall.  According to the present invention, a fluidic oscillation of high frequency is caused by vortex flows generated behind the target occurs so that measurement of flow rate in a high accuracy is possible at a wide flow rate range.
Patent CA-2052776-A1 (CA)
Title: Cat litter
Inventor: RICHARDS JEFFREY C
IPC: A01K1/015
Filed: 1991-10-04
Abstract: A cat litter is provided which is formed from a selective quantity of peat so that the peat absorbs urine such that the release of ammonia is substantially inhibited.  A method of producing a cat litter also is provided.
Patent CA-2059199-A1 (CA)
Title: Method for producing mature reconstituted mammalian eggs by nuclear transplantation
Inventor: WILLADSEN STEEN
IPC: A01K67/027
Filed: 1992-01-10
Abstract: ABSTRACT OF THE DISCLOSURE    A method for producing mature reconstituted unfertilized mammalian eggs by transferring to enucleated ovulated or in vitro matured eggs nuclei from other sources, includes the following steps: 1) production of the enucleated mature egg or -egg fragment. 2) isolation of the cell or cell fragment containing the nucleus to be transferred. 3) fusion of the enucleated egg or -egg fragment with the cell or cell fragment containing the nucleus to be transferred. Nuclei from a variety of sources may be used including immature and mature eggs, and cells from embryos. The reconstituted eggs may be fertilized by exposure to sperm in vitro or by activation and pronuclear transplantation.
Patent CA-2059748-A1 (CA)
Title: Mailing machine with state display capability
Inventor: BLACKMAN FRAN E
IPC: G07B17/00
Filed: 1992-01-21
Abstract: ABSTRACT OF DISCLOSURE     A complex machine,  such  as a mail-processing machine  or postage meter, provided with one or more displays which mimic the machine configuration or the layout of print elements, with control switches located adjacent the displays in locations corresponding to the machine components or print elements that they respectively control.   The  displays are constantly on with indicators  lit showing the current state of the machine or the expected printout.          This greatly facilitates operation and control of the machine or meter even by unskilled operators.
Patent CA-2061421-A1 (CA)
Title: Bandstop filter
Inventor: JACHOWSKI DOUGLAS R
IPC: H01P7/10
Filed: 1992-02-18
Abstract: Abstract of the Disclosure A multi-resonator notch filter incorporates a variable impedance transmission line with impedance values going from a relatively low value and increasing upward to a relatively high value then back down to a relatively low value again.  A plurality of resonant cavities is coupled to the relatively high central impedance line section of the filter at odd multiples of quarter wavelength intervals.  Other resonators can be coupled to lower impedance sections of the transmission line.  The locations of selected resonators on the quarter wavelength intervals can be altered thereby increasing and decreasing the nominal quarter wavelength intervals of selected internal pairs by a predetermined amount thereby providing acceptable levels of performance with fewer resonators.
Patent CA-2062455-A1 (CA)
Title: Composition for ink vehicles and protective coatings
Inventor: SUGERMAN GERALD
IPC: C09D11/02
Filed: 1992-03-05
Abstract: ABSTRACT An improved composition for use as a liquid vehicle in ink systems and for printing on diverse substrates.  The functional constituents of the composition are unsaturated fatty acid esters, difunctional or multifunctional acrylate esters and optionally mixed esters of unsaturated fatty acid and difunctional or multifunctional acrylates and other alpha, beta unsaturated carboxylates.  Lithographing ink vehicle formulations of these improved components exhibit exceptional performance.  In application, the improved compositions permit a substantial reduction or elimination of solvents and certain drying agents that otherwise form toxic and environmentally sensitive byproducts.
Patent CA-2062808-A1 (CA)
Title: Integral biomolecule preparation device
Inventor: PETSCHEK HARRY E
IPC: G01N35/10
Filed: 1991-04-29
Abstract: An integral biomolecule preparation device (10) which accomplishes all of the nucleic acid separation steps, including centrifugation (12), reagent addition (20), and pipeting (14, 16, 18), automatically without human intervention to fully automate the DNA  separation procedure.
Patent CA-2064797-A1 (CA)
Title: Method for conversion of potential energy of air into mechanical energy of shaft rotation and apparatus for carrying said method into effect
Inventor: FEDORYAKA ANDREI A
IPC: F02C3/09
Filed: 1991-06-18
Abstract: A method is proposed where an air flow (a) fed to a vacuum zone (1) consists of a plurality of elementary vortex jets (b). Said flow has an annular form and is subjected in the vaccum zone (1) to additional spinning as a result of which it transforms into an entire vortex flow (c). Then the vortex flow (c) is subjected to additional compression due to injection of a stream of atmospheric air (d) and compression under the influence of the electromagnetic radiation of the environment, and then, in the course of its expansion, performs the mechanical work of rotating a shaft. In the proposed device the guiding means (4) of a vane compressor (2) consists of a conical body whose generatrix has a negative curvature. The blades (8) of the impeller (5) are crescent-shaped and are secured on a carrying element (9). The surface of the latter has a conical form whose generatrix has a negative curvature and conjugates with the surface of the guiding means (4).
Patent CA-2065214-A1 (CA)
Title: Molten metal filter
Inventor: MARTIN HARVEY
IPC: C22C9/02
Filed: 1992-04-06
Abstract: MOLTEN METAL FILTER                             Abstract A molten metal filter includes a refractory plats having an opening therethrough.  A refractory filter element is attached to the refractory plate and projects therefrom,  the exterior surfaces of the filter element generally defining a rectangular prism.  The filter element is hollow so as to define an interior cavity.  The filter element includes an opening in that portion of the filter element that is attached to the refractory plate, the opening surrounding the opening in the refractory plate such that fluid communication is established between the cavity and the opening in the refractory plate.  In the preferred embodiment, a plurality of filter elements are provided, which filter elements are connected to the refractory plate such that adjacent sides of the filter elements are oriented vertically and are disposed generally parallel to each other.   It  is preferred that the refractory plate be oriented generally vertically and disposed within a filter box so as to define an inlet chamber within which the filter elements are disposed, and an exit chamber through which filtered metal can be discharged from the filter box.  Best results are  obtained by  forming the  filter  elements  from a  porous, refractory,  ceramic material or glass frit-bonded or sintered silicon carbide or alumina, and by forming the refractory plate from a siliceous-based, castable, refractory material.
Patent CA-2067010-A1 (CA)
Title: Urea-superacid salts and their use as a curing catalyst of epoxy resins
Inventor: MIYAZONO TADAFUMI
IPC: C07C275/06
Filed: 1992-04-24
Abstract: ABSTRACT OF THE DISCLOSURE     As a curing catalyst of epoxy resins,  superacid salts of an  N,  N'-di-  or  N,  N',  N'-trisubstituted  urea  are disclosed.  The urea component  is produced by reacting an organic  isocyanate  and a primary or  secondary amine at least  one  of  which  is  monofunctional.  The  catalyst  is soluble in conventional organic solvents, well compatible with  the   epoxy   resin  and   catalizes   the  cationic polymerization   reaction   of   epoxy   resins   at   room temperature.
Patent CA-2067378-A1 (CA)
Inventor: FISHER DAVID W
IPC: A61B5/01
Filed: 1990-08-07
Abstract: Dispositif combiné d'échantillonnage de matières fécales et de mesure de la température (1) permettant simultanément d'échantillonner des matières fécales et de mesurer la température du corps par une seule pénétration dans le rectum. La gaine (10) consiste en une gaine cylindrique allongée et rigide présentant une extrémité distale partiellement coupée pour former une spatule (12). Le thermomètre est introduit dans un alésage annulaire dans la gaine.
Patent CA-2067976-A1 (CA)
Title: Aqueous coating compositions
Inventor: TRAMONTANO VALENTINO J
IPC: C09D5/00
Filed: 1992-05-04
Abstract: ABSTRACT           Aqueous-based crosslinkable coating composition comprising an aqueous dispersion of at least one polymer having epoxy-reactive functional groups, at least one polyepoxide compound, and at least one metal chelate complex epoxy-cure catalyst.
Patent CA-2068917-A1 (CA)
Title: Compositions of polymers of carbon monoxide and ethylenically unsaturated compounds
Inventor: SLAUGH LYNN H
IPC: C08L73/00
Filed: 1992-05-19
Abstract: A B S T R A C T          COMPOSITIONS OF POLYMERS OF CARBON MONOXIDE AND        ETHYLENICALLY UNSATURATED COMPOUNDS      Compositions comprising a linear alternating polymer of carbon monoxide with at least one ethylenically unsaturated compound and a melt stabilizing agent, wherein the melt stabilizing agent is a mixture of magnesium oxide and oxide(s) of titanium and/or aluminium and is present in an amount of from 0.1 %w to 10 %w, relative to the weight of the linear alternating polymer.
Patent CA-2069151-A1 (CA)
Title: Process and compositions for delivery of foliar herbicides
Inventor: BARNES ANDREW C
IPC: A01N63/50
Filed: 1992-05-21
Abstract: Abstract of the Disclosure The subject invention pertains to novel methods and compositions utilizing enzymes and chemical herbicides which exhibit enhanced herbicidal activity in controlling unwanted vegetation. The novel compositions and methods described here facilitate effective weed control from sublethal concentrations of chemicalherbicides.
Patent CA-2069615-A1 (CA)
Title: Polyester/polycarbonate blends having improved clarity and impact strength
Inventor: SMALL JAMES D JR
IPC: C08L67/02
Filed: 1990-12-20
Abstract: Disclosed are clear thermoplastic molding compositions comprising an aromatic polycarbonate, a polyester of terephthalic acid and 1,4-cyclohexane-dimethanol, and the copolymeric transesterification product of the polycarbonate and polyester.
Patent CA-2070593-A1 (CA)
Title: Secondary containment system for manholes
Inventor: REICIN EDWARD E
IPC: B65D90/10
Filed: 1992-06-05
Abstract: ABSTRACT OF THE DISCLOSURE     The invention provides secondary containment for liquid carrying equipment which is in a confined area.  The invention is especially well suited for retrofitting manholes containing pumps for underground gasoline distributing systems. The pumps or other equipment are removed to expose pipes or wires entering the manhole. Then, plates are bolted around the pipes or wires to engage and support a bag made of a material which resists the attack of the liquid. Holes are cut in the bag to pass the pipes or wires. The bag is placed in the hole, expanded to approximately fill hole, to rest on the plates, and is sealed to the plates, pipes, or wires. The top of the bag is gathered and closed to resist entry of ground water.
Patent CA-2072134-A1 (CA)
Title: Heterocyclic dione derivatives as pesticides and plant growth regulators
Inventor: LEE SHY-FUH
IPC: C07D265/02
Filed: 1991-10-23
Abstract: ABSTRACT OF THE DISCLOSURE      The present invention concerns substituted 3,5-dioxo-3,4,5,6-tetrahydrooxazines as herbicides, processes and intermediates for their preparation, compositions containing them and their use as herbicides and acaricides.
Patent CA-2073530-A1 (CA)
Title: Corrosion protection system
Inventor: OVERALL JOHN C K
IPC: C23F13/04
Filed: 1992-07-09
Abstract: ABSTRACT OF THE DISCLOSURE          A method of cathodic corrosion protection of a conductive objective and a system therefore, this system comprising at least one electrode for contact with an electrolyte, a control unit connected to the electrode and for connection to the object to complete a circuit through said electrolyte, and a means for providing power to the control unit.  The control unit comprises a switch means for  interrupting  current  flow  in  the  circuit  at predetermined intervals, each time interval comprising a first time segment during which said current flow remains interrupted  and  a  succeeding  second  time  segment,  a comparator means for measuring the potential difference between the electrode and the object when there is no current flow in the circuit and for comparing the measured potential to a predetermined voltage value, the control unit closing the circuit during the second time segment only if and when the comparison indicates that additional corrosion protection of the object is required.
Patent CA-2074614-A1 (CA)
Title: Novel diarylphosphinous acid aryl esters, a process for their preparation and their use for stabilizing plastics, in particular polyolefin molding compositions
Inventor: REGNAT DIETER
IPC: C08K5/5377
Filed: 1992-07-24
Abstract: Abstract of the disclosure:            Novel diarylphosphinous acid aryl esters, a process for their preparation and their use for stabilizing plastics, in particular polyolefin molding compositions Diarylphosphinous acid aryl esters of the formula (I)                    (I) where n = 1 or 2, in which R1 and R2 independently of one another, as monovalent radicals, are a phenyl or naphthyl radical, each of which can carry 1 to 5 substituents, in which the substituents are identical or different and are a nonaromatic hydrocarbon radical, an alkoxy radical, alkylthio radical or dialkylamino radical having in each case 1 to 8 carbon atoms, aryl or aryloxy having in each case 6 to 10 carbon atoms or halogen having an atomic number of 9 to 35, and R2, as a divalent radical, is a phenylene or biphenylene radical, which is unsubstituted or substituted by up to 4 nonaromatic hydrocarbon radicals having 1 to 8 carbon radicals,  or   a   naphthylene   radical,   which   is unsubstituted or carries 1 to 4 non-aromatic hydrocarbon radicals having 1 to 8 carbon atoms as substituents, and R3, R4 and R5 independently of one another are hydrogen or a branched or unbranched hydrocarbon radical having 1 to 8 carbon atoms.            The invention furthermore relates to a process for the preparation of compounds of the formula (I) and to their use  for  stabilizing  plastics,  in  particular  poly-merization plastics.