baber/WOPTO huggingface dataset:
Patent CA-2068801-A1 (CA)
Title: Method of producing optical waveguides on a substrate
Inventor: SPRINGER JOHANN
IPC: G02B6/13
Filed: 1992-05-15
Abstract: Abstract METHOD OF PRODUCING OPTICAL WAVEGUIDES ON A SUBSTRATE      In a method of producing optical waveguides (8) in the form of striplines on a substrate (1), two transparent layers (3 and 6) are applied one on top of the other on the substrate (1) and are structured in the form of optical waveguides (8).          The material of the two layers (3 and 6) is selected in such a way that the melting point of the material of the second layer (6) is lower than that of the material of the first layer (3) but has a higher refractive index than the first layer (3).          After formation of the structure, a heating process is implemented in which the material of the second layer (6) melts and, due to the surface tension, its surface, when seen in cross section, takes on the shape of the arc of a circle. With this cross-sectional shape, coupling of light waves into and out of an optical fiber is possible at one edge of the substrate (11) after the end faces (10) of the optical waveguide (8) have been ground or polished.     (Figure 8)
Patent CA-2068966-A1 (CA)
Title: Process for producing pyrethrolone and its intermediate compound
Inventor: TAKAGAKI TOHEI
IPC: C07C49/707
Filed: 1992-05-19
Abstract: ABSTRACT            Pyrethrolone of the formula [II],                [II]     is produced by reacting a cyclopentenolone derivative of the formula [I],                  [I]     with zinc in an aqueous alcohol solvent.  And the cyclopentenolone derivative of the formula [I] is produced by reacting a propargylcyclopentenolone derivative of the formula [III],                          [III]     with vinyl halide in the presence of a palladium catalyst, a copper catalyst and a tertiary amine.  These processes permit easy production of pyrethrolone of the formula [II] and an intermediate compound of the formula [I] for the production of the pyrethrolone.
Patent CA-2070523-A1 (CA)
Title: Propenals substituted by a dithiane cyclic derivative and processes for their preparation
Inventor: SOLLADIE GUY
IPC: C07D339/08
Filed: 1992-06-04
Abstract: Propenals of formula:  (* CHEMICAL STRUCTURE *) (I) in which formula R is H or a C1-C4 thioalkyl radical, the dithiane ring being at the cis position in relation to the aldehyde function when R is H and at the trans position when R is a thioalkyl radical. The invention also relates to two processes for the preparation of these propenals.
Patent CA-2070536-A1 (CA)
Title: Folding tow bar apparatus and methods
Inventor: BOECK LEON
IPC: B60D1/54
Filed: 1992-06-05
Abstract: Abstract of the Disclosure The present invention is a tow bar apparatus and method for use in towing one vehicle with another vehicle.  The tow bar apparatus mounts to the front of the first vehicle to be towed via a support.  Bendable arms are pivotally attached to the support and extend outward from the support.  The free ends of the bendable arms are further pivotally attached to each other. Coupling structure permits attachment of the bendable arms to the second vehicle to tow the first vehicle. Locking structure is provided for selectively locking each of the bendable arms to limit relative rotational movement during towing.  If the arms are not locked at the initiation of towing, once the second vehicle begins the towing operation, the locking structure on the bendable arms will automatically lock the apparatus into the towing position.  The pivoting structure of the tow bar apparatus permits folded and compact storage on the first vehicle.  The pivoting structure further permits unfolding of the apparatus to mount to the second vehicle for towing, without regard to precise positioning of the vehicles.  A pivotal mounting of the coupling structure permits further compact storage. Selective locking structure is provided to lock the coupling structure to the bendable arms to limit relative rotational movement during towing and storage.
Patent CA-2071667-A1 (CA)
Title: Bubble emission volume quantifier
Inventor: PEAKE DON A
IPC: G01M3/10
Filed: 1992-06-19
Abstract: ABSTRACT OF THE DISCLOSURE            The present invention is an apparatus and method for detecting a leak from an object.  A bubble collecting tube is used for  collecting  bubbles  emitted  from  an  object  and  a bubble detecting assembly adjacent the bubble collecting tube is used for detecting a predetermined volume of bubbles collected in the bubble collecting tube to indicate a leak in the object.
Patent CA-2073280-A1 (CA)
Inventor: TAYLOR RAYMOND L
IPC: B32B9/00
Filed: 1992-07-07
Abstract: The surface of a zinc selenide substrate is ground to curve in the opposite direction from that which occurs due to the bimetallic effect when zinc sulfide is deposited on a flat substrate by the chemical vapor deposition process.  The bowing of the interface that occurs upon cooling of the hot laminate when the surface of the substrate is flat before deposition is compensated for by the pre-figured bowing.  A distortion free window for the transmission of infra-red radiation is provided by this invention.
Patent CA-2074402-A1 (CA)
Title: Colored corundum composite and processes for its production and its use
Inventor: MOELTGEN PAUL
IPC: C01F7/447
Filed: 1992-07-22
Abstract: A COLORED CORUNDUM COMPOSITE AND PROCESSES FOR ITS PRODUCTION AND ITS USE            ABSTRACT OF THE DISCLOSURE      Colored corundum composite with a matrix of .alpha.-A12O3, as formed by sol-gel process ending in sintering and size reduction steps with addition of oxide pigments (or precursors of such oxide pigments, formable to the oxide pigment in sinter heating) added to the sol before full gelation thereof.          STA 34-Foreign Countries
Patent CA-2079104-A1 (CA)
Title: Optical fibre feedthrough
Inventor: PAYNE ROGER A
IPC: G02B6/42
Filed: 1991-03-28
Abstract: An optical fibre feedthrough (2) in which a polarization maintaining (PM) fibre (6) is sealed within a metallic sleeve (14) by a glass seal (20). The seal (6) applies asymmetric stresses to the fibre (6) which is orientated so that they reinforce its PM  properties. This arrangement reduces the manufacturing tolerances needed to avoid destroying the PM properties of the fibre associated with symmetric stress seals. It has application to packages for opto-electronic components. A double optical fibre feedthrough is also disclosed.
Patent CA-2079777-A1 (CA)
Title: Oligonucleotide analogs
Inventor: HUIE EDWARD M
IPC: A61K48/00
Filed: 1991-02-25
Abstract: This invention relates to novel oligonucleotide analogs in which one or more of the internucleotide phosphodiester linkages have been replaced by a sulfur based linkage focusing on therapeutic potential.
Patent CA-2081536-A1 (CA)
Inventor: TAKASHIGE MASAO
IPC: B29C35/02
Filed: 1992-10-27
Abstract: An oriented film easy to split which contains nvlon (Ny) and meta-xylene adipamide  (MXD6)  at the weight ratio of 40-85:15-60 and which were oriented with magnification above 2.8 times to both direction of MD and TD.   The concrete example of nylon (Ny) composes of as nylon 66 (Ny66), nylon 6-66 copolymer (Ny6-66) and so on.  Under this manufacturing method of oriented film easy to split, when a raw film is heated in the biaxially orienting process based on the tubular method, heating temperature of side part to direction of width when folding bubbles is controlled along the circumference direction of bubbles so as to be lower than the heating temperature of part which is used later as a product. The process to give heat treatment to films has a process of first step heat treatment implemented  for films at temperature between 120 degrees and 190 degrees based on tubular method or Tenter method and a process of second step heat treatment implemented for films at temperature between 190 degrees and 220 degrees based on Tenter method.
Patent CA-2081879-A1 (CA)
Inventor: WETEGROVE ROBERT L
IPC: C12N15/02
Filed: 1992-10-30
Abstract: The invention provides a monoclonal antibody having an affinity to polyacrylate. The monoclonal molecules of the invention are used in assays to determine the presence or concentration of active polyacrylate in a fluid.
Patent CA-2082119-A1 (CA)
Title: Process for independent control of crown and camber for magnetic head slider
Inventor: DESHPANDE ANNAYYA P
IPC: G11B5/187
Filed: 1992-11-04
Abstract: ABSTRACT      A method for making a magnetic head slider comprising the  steps of  lapping the  slider to form an air bearing surface,  producing a chosen pattern of rails on the air bearing surface, and producing a chosen pattern of stress on the  back  side  of  the  slider  to  remove  the  distortion produced in the slider by the lapping and rail formation steps.   The stress pattern can be chosen to produce any desired range of crown and camber for the slider.
Patent CA-2084031-A1 (CA)
Title: Wire winding and tying machines
Inventor: URCHAGA MIGUEL C
IPC: B65B13/28
Filed: 1992-11-27
Abstract: ABSTRACT    A wire winding and tying machine useful in the winding of steel wire strands or the like includes a ty stock dispenser that delivers a pre cut length of ty stock to a platform.  A hanking unit picks up the ty stock and delivers it to a position above pre wound strands.  The hanking unit includes rockable arms that press the ty stock ends about the wound strands to a position to engage a twister that winds the ty stock about the strands.
Patent CA-2085602-A1 (CA)
Title: Combined day viewing and night viewing telescope
Inventor: KRUIZINGA BOB
IPC: G02B23/12
Filed: 1991-08-08
Abstract: Combined day viewing and night viewing telescope, having one entrance aperture for both day viewing light and night viewing light.  The day viewing light is spatially separated from the night viewing light after passing the entrance aperture and is directed out around an image intensifier for the night viewing light to the exit aperture.
Patent CA-2086201-A1 (CA)
Title: Automatic dewaxing filter washing system and method
Inventor: PATRONE ANTHONY J
IPC: B01D35/31
Filed: 1992-12-23
Abstract: An automatic filter cleaning system comprises: filter for removing wax from a wax mix slurry to provide a filtrate.      The operational status of the filter is affected by a status means that is connected thereto. A control means connected to the status means, to a filter drain and to a filter cleaning means automatically changes the status of the filter from an operational state to a down state, to drain and clean the filter while in the down state.
Patent CA-2087366-A1 (CA)
Inventor: SPENARD JEAN-CLAUDE
IPC: B65G1/07
Filed: 1993-01-15
Abstract: The foodstuff-displaying refrigerator unit comprises a box-like container, having an enclosure upwardly opening through a top mouth.  A door aperture is defined about a side wall of the container.  A vegetable-supporting platform is freely mounted into the enclosure for vertical movement therethrough.   A pallet is supported by a first conveyor, itself resting on the container flooring.  Inflatable balloons are provided between the pallet and the platform, for power lifting the platform.  An air compressor feeds air into the balloons, and furthermore cools the air within the container enclosure beneath the platform.  The top layer of foodstuff supported by the platform can thus be adjusted by the inflatable balloons, to remain substantially about the plane of the top mouth of refrigerator enclosure, to facilitate inspection of and  access  to  the foodstuff  independently  of  the  level  of progressive  attrition  of  foodstuff  from  successive  foodstuff withdrawal by customers.
Patent CA-2087783-A1 (CA)
Title: Reusable ribbed beverage container for use with vehicle beverage holders
Inventor: SCHAEPPI THOMAS J
IPC: A47G19/02
Filed: 1993-01-21
Abstract: ABSTRACT OF THE DISCLOSURE      A reusable beverage container for hot or cold beverages is for use in vehicle beverage holders with receptacles sized for twelve ounce beverage cans.  The container has a first lower portion of a diameter approximating or less than the diameters of standard twelve ounce beverage cans.  A second upper portion is provided with a diameter larger than lower portion providing additional beverage capacity.  A flange is formed between the upper and lower portions.  One or more ribs substantially encircle the second upper portion.  A handle is positioned sufficiently high on the upper portion so as not to interfere with the insertion of the lower base portion into the vehicle beverage holder.
Patent CA-2089644-A1 (CA)
Title: Method of improving ion flux distribution uniformity on a substrate
Inventor: HURWITT STEVEN D
IPC: C23C14/54
Filed: 1991-08-23
Abstract: A bias sputter coating apparatus is provided with a cathode target assembly (30) having a central electrode (70) which is maintainable at an adjustable voltage level which is negative with respect to the chamber anode but positive with respect to the cathode voltage and the bias voltage on the substrate. The apparatus is used to manufacture sputter coated article such as semiconductor wafers (21). The method provides that the voltage on the central electrode is adjusted to a level which improves the ion flux distribution uniformity on the substrate. The electrode voltage is generally optimized in the range of from -8 volts to -20 volts.
Patent CA-2090528-A1 (CA)
Title: Automated rotor welding processes using neural networks
Inventor: BELLOWS JAMES C
IPC: B23K9/095
Filed: 1993-02-26
Abstract: 56,653 ABSTRACT Methods and apparatus for monitoring an arc welding process are disclosed.  In a preferred embodiment, the present invention creates a digital representation of the arc created during  welding  and,  using  a  neural  network  computer, determines if the arc is representative of normal or abnormal welding conditions.  The neural network disclosed is trained to identify abnormal conditions and normal conditions and may be adaptively retrained to classify images that are not in the initial set of normal and abnormal  images.   In certain embodiments, other data, such as current, weld wire emission spectra, or shielding gas flow rate are also collected and the neural network is trained to monitor these data.  Also, in certain embodiments, an audio signal is collected from the vicinity of the welding process and is used by the neural network computer to further classify the arc as normal or abnormal.    The  present  invention  is  most  preferably implemented in repetitive and continuous welding operations, such as those encountered in the manufacture and rebuilding of steam turbines.
Patent CA-2093634-A1 (CA)
Title: Basket-style carrier with handle and divider cells
Inventor: HARRIS RANDALL L
IPC: B65D71/58
Filed: 1992-08-17
Abstract: A hexagonal basket-style carrier formed from a unitary blank.  Each side panel (12) is connected to a triangular bottom panel section (14) forming a segment of the bottom panel of the carrier. The bottom panel sections (14) are connected by triangular tuck panels (36) having folds which extend up into the interior of the carrier on opposite sides of the handle (16) to divide the carrier into cells. Tabs (74) on the ends of the handle (16) are connected with slots (56) in the carrier to hold the handle (16) and bottom panel (12) in place.
Patent CA-2094994-A1 (CA)
Inventor: ROUX PIERRE
IPC: H04J3/00
Filed: 1993-04-27
Abstract: REGENERATEUR DE SIGNAUX NUMERIQUES FORMES DE TRAMES, NOTAMMENT POUR INSTALLATION DE TRANSMISSION NUMERIQUE PAR VOIE HERTZIENNE Un régénérateur pour régénérer un signal numérique reçu formé de trames incluant des éléments de justification, notamment pour installation de transmission numérique par voie hertzienne, caractérisé par un agencement (2,3,4) associant les mécanismes de justification au fonctionnement d'un égaliseur autoadaptatif fractionné modifié pour accepter des ordres de rotation de ses coefficient. Le régénérateur selon l'invention n'accumule pas de gigue et peut être réalisé entièrement à l'aide de circuits numériques. Figure à publier : Figure 1.
Patent CA-2095651-A1 (CA)
Title: Universal burn metal halide lamp
Inventor: MATHEWS PAUL G
IPC: H01J61/30
Filed: 1993-05-06
Abstract: A metal halide arc discharge lamp rated for not more than 150 watts and 100 volts and which can be operated in either a horizontal or vertical position without a significant change in color temperature or lumen output has an ellipsoidal arc chamber mounted within a nitrogen-containing outer envelope. The arc chamber contains a pair of electrodes, mercury and sodium and scandium iodides and is coated at each end with a heat reflective coating. The chamber aspect ratio, electrode insertion length, metal halide density, coating length and wall loading are defined within narrow ranges.
Patent CA-2095703-A1 (CA)
Title: Method for producing photochromic plastic lens
Inventor: CHU NORI Y C
IPC: C09B19/00
Filed: 1993-05-06
Abstract: METHOD FOR PRODUCING PHOTOCHROMIC PLASTIC LENS of the Invention: A method for producing photochromic plastic lenses is presented. In accordance with the method of the present invention a photochromic property is imparted to a plastic lens (e.g., by dyeing the surface of the lens with a photochromic dye solution) at high temperatures by microwave heating for a predetermined amount of time.
Patent CA-2096325-A1 (CA)
Inventor: NEUMUELLER KONRAD
IPC: A47C1/024
Filed: 1993-05-14
Abstract: ABSTRACT    A control for unlocking an adjustment mechanism of an adjustable seating device has a mount to enable the control to be disposed in an accessible position for the user and remote from the mechanism.   A force transfer element, preferably a Bowden cable is employed from the control to perform an unlocking operation.  The control has a release lever which, to unlock and relock the adjustment mechanism after seat adjustment, is movable by the user and always operated by applying force in the same direction which leads to ease of operation.
Patent CA-2096861-A1 (CA)
Title: Animal restraining apparatus
Inventor: PATTISON BARBARA M
IPC: A01K1/06
Filed: 1993-05-25
Abstract: ABSTRACT    An animal restraining apparatus comprising a longitudinal post,  an extension bar attached at one end thereof to,  and extending transversely from, one end of the post and a neck restraining element having a generally parabolic shape attached at the base thereof to the other end of the extension bar whereby the restraining element is angled upwardly from the horizontal. For dog grooming usage the apparatus is configured for attachment to a dog grooming table.  The extension bar is preferably also angled upwardly from the horizontal and preferably one side of the neck restraining element includes a closed slot and the other side thereof an open slot for the attachment of a strap used to secure the animal in a restrained position.
Patent CA-2098769-A1 (CA)
Title: Long wavelength infrared photo-induced switching of a resonant tunneling diode using the intersubband transition
Inventor: LIU HUI C
IPC: H01L31/0352
Filed: 1993-06-18
Abstract: An optical switching device is comprised of an asymmetrical double barrier resonant tunnelling diode (RTD) connected in series with load resistance apparatus to a power source, apparatus for illuminating the RTD with an infrared incident light beam, apparatus for applying signal power to the RTD, and apparatus for varying the power within the RTD.
Patent CA-2099153-A1 (CA)
Title: Dispensing device
Inventor: KELLY MICHAEL
IPC: G07G1/00
Filed: 1993-06-25
Abstract: ABSTRACT OF THE DISCLOSURE            A dispensing machine  for cigarette packages  and other articles comprising a cabinet with compartments having a tray designed to move into and out of the compartments and  withdraw  articles  therefrom.   The  device  is  provided with means to lock the compartments and means to record when a tray is moved to withdraw an article from the compartments.          Additional means is provided to prevent the tray from being operated partway into or partway out of the compartments.
Patent CA-2101334-A1 (CA)
Title: Free radical polymerization of vinyl aromatic monomers
Inventor: SHERO ERIC J
IPC: C08F112/08
Filed: 1991-12-17
Abstract: High. molecular weight polystyrene is prepared by free radical polymerization of styrene monomer in the presence of 5 to 5000 ppm of a soluble organic acid having pKa from 0.5 to 2.5.
Patent CA-2102116-A1 (CA)
Title: Use of rapamycin prodrugs as immunosuppressant agents
Inventor: SCHULTE GARY R
IPC: C07D498/18
Filed: 1992-04-03
Abstract: The use of rapamycin prodrugs of formula (I) as immunosuppressant agents, intermediates formed in the preparation of its prodrugs as well as the prodrugs themselves.
Patent CA-2104557-A1 (CA)
Title: Production of poly(arylene sulfide) polymers containing reduced amounts of oligomers
Inventor: FAHEY DARRYL R
IPC: C08G75/0259
Filed: 1993-08-20
Abstract: ABSTRACT OF THE DISCLOSURE         A method for removing oligomers and non-polymeric impunities from poly(arylene sulfide) polymers is provided in which a poly(arylene sulfide) polymer associated with oligomers and non-polymeric impunities is contacted with a solvent at a sufficient temperature to substantially dissolve the polymer, oligomers and impurities, then the solution is cooled to a temperature at which the poly(arylene sulfide) precipitates while oligomers and impurities remain in solution, then the precipitated polymer is separated from the solution containing the oligomers and impurities.   A polymer product produced by this method is also disclosed.
Patent CA-2106218-A1 (CA)
Title: Dual bicycle braking system
Inventor: MOON ANDY
IPC: B62L1/10
Filed: 1993-09-15
Abstract: ABSTRACT A dual bicycle braking system for applying greater braking force to the front wheel of a bicycle than to the back wheel, the system having front and rear brakes controlled by front and rear hand brake levers,  the rear lever operationally secured to a singular rear caliper break, the front brake lever operationally secured to a primary cable, which in turn is secured to first and second actuating cables, the first actuating cable operates a first caliper brake and the second actuating cable operates a second caliper brake, both of which engage the front wheel of the bicycle to apply greater braking force to the front wheel than is applied to rear wheel by the rear caliper brake, the first actuating cable may be shorter than the second actuating cable so that the first caliper brake engages the front wheel before the second caliper brake does to provide graduated de-acceleration, or alternatively, the tension in first caliper brake may be less than in the second caliper brake to insure the same result.
Patent CA-2106843-A1 (CA)
Title: Adaptive drive waveform for reducing crosstalk effects in electro-optical addressing structures
Inventor: ILCISIN KEVIN J
IPC: G02F1/133
Filed: 1993-09-23
Abstract: ADAPTIVE DRIVE WAVEFORM FOR REDUCING CROSSTALK EFFECTS IN ELECTRO-OPTICAL ADDRESSING STRUCTURES       Abstract of the Disclosure Crosstalk in reduced in any type of active matrix electro-optical display system (10) by applying a compensating signal, the value of which is dependent upon multiple data drive signals.  In a preferred embodiment, a single compensating signal, equal to the inverse weighted average of all of the data drive signals applied during a row address period, can be applied to all data electrodes (20) after the data drive signals are stored in display reduces side-to-side crosstalk and front-to-back crosstalk to levels previously achievable for only type of crosstalk at a time.