baber/WOPTO huggingface dataset:
Patent CA-2082938-A1 (CA)
Title: Light actuated optical switching device
Inventor: EVANS JOSEPH T JR
IPC: G02F1/29
Filed: 1991-05-06
Abstract: A light activated switching device (10) is disclosed in which the receipt of a light signal is used to switch a light beam between two output ports (14) and (16). The input light beam is reflected from an interface between two regions having different indices of refraction when the light signal is present. The reflected light beam then exits through the first output port (16). In the absence of the light signal, the two regions have the same index of refraction, and the light beam passes through both regions and exits through the second output port (14).
Patent CA-2083191-A1 (CA)
Inventor: STUHR LESLIE P
IPC: F16H33/00
Filed: 1992-11-18
Abstract: A rotary actuator uses a two degree of freedom gear train with three torque members to provide torque to the output element from a first torque member. The torque is supplied to a second torque member from a drive motor. A torsion spring on the third torque member is normally wound tight and held wound by a brake which locks the third torque member during normal operation when electrical power is available for the drive motor. When power is lost, the brake releases the third torque member, allowing the spring to apply torque to the third torque member to drive the output element through the first torque member to a return position. This allows loads such as valves to be returned to a safety condition upon loss of electrical power to the system of which the load and the actuator are a part.
Patent CA-2083855-A1 (CA)
Inventor: MELASHENKO CONNIE R
IPC: A63H3/52
Filed: 1992-11-26
Abstract: A children's play structure includes a hinged frame structure having mounted thereon a plurality of panels depicting murals or scenes. The hinged frame structure, which is comprised of a plurality of hinging sections and which is of lightweight, simple and economical construction, is provided with substantial rigidity by corner structures which include hinging apparatus at the upper and lower ends of vertical tubes to permit pivoting rotation of the corner structure relative to one but not the other of a pair of frame sections coupled thereby. Each of the upper and lower hinging apparatus includes a clevis and a lever releasably coupled to the horizontal tubes of the adjacent frame sections by plugs with resilient release tabs. The clevis and lever have interleaved legs which receive a shaft and an opposite cap within apertures therein to permit pivoting rotation between the lever and the clevis while at the same time providing substantial resistance to unwanted vertical flexure. At the same time, the shaft which is secured to the vertical tube of the corner assembly, and the cap which is non-rotatably coupled thereto, are prevented from rotating relative to the clevis, such that only one of the adjacent hinging frame sections is free to rotate relative to the single common vertical tube of the corner structure. The front sections at opposite ends of the hinged frame structure have upper and lower tubes which terminate at vertical tubes to which such upper and lower tubes are coupled by elbows.
Patent CA-2084365-A1 (CA)
Title: 4-(4-piperidinyl-thieno[3,2-c] pyridine derivatives of n-alkylglutarimides
Inventor: NEW JAMES S
IPC: A61P25/00
Filed: 1992-12-02
Abstract: Abstract Novel thieno[3,2-c]pyridine derivatives of Formula I,   I in which Z is glutarimide, are useful antipsychotic agents with reduced side-effect liability.
Patent CA-2087042-A1 (CA)
Title: Genomic mapping method by direct haplotyping using intron sequence analysis
Inventor: SIMONS MALCOLM J
IPC: C12Q1/68
Filed: 1991-07-11
Abstract: The present invention is an improved genomic mapping method which is able to generate highly informative polymorphic sites throughout the genome. In addition to being highly polymorphic, the sites can be used to generate patterns that identify allelic and sub-allelic (haplotypes) associated with the region.
Patent CA-2087093-A1 (CA)
Title: Process for the extractive removal of 2-alkylthio-5- phenylpyrimidines from their reaction mixtures
Inventor: TETZLAFF HERIBERT
IPC: C07D239/38
Filed: 1991-06-27
Abstract: (57) Abstract Disclosed is a method for the separation by multi-stage extraction of 2-alkylthio-5-phenylpyrimidines of general formula (I) in which R1 is H or an alkyl group with 1 to 15 C-atoms, X is an oxygen atom or a single bond and R2 is an alkyl with 1 to 15 C-atoms, using two organic solvents which give two immiscible phases. The method has the advantage that the phenyl pyrimidines are obtained from the reaction mixture at a high level of purity even on a commercial scale.
Patent CA-2090731-A1 (CA)
Title: Moire cancel circuit
Inventor: YAMAZAKI MASAO
IPC: G09G1/04
Filed: 1993-02-24
Abstract: In a vertical deflection circuit of a display monitor including a vertical deflection coil 41 and a sigmoid correction capacitor 42 connected to the vertical deflection coil 41, a series correction circuit consisting of a resistor 21 and a switch 22 connected in series with each other is connected in parallel with the sigmoid correction capacitor 42.  By turning the switch 22 on and off in response to a control signal having a period twice as long as a period of the vertical synchronizing signal, a current flowing through the resistor 21 and the switch 22 is periodically added to a vertical deflection current, thereby causing a shift of display points on a screen to make the moire phenomenon unnoticeable.
Patent CA-2092712-A1 (CA)
Title: Generatrice a turbine
Inventor: GAMELL JOSEPH A
IPC: F01D15/10
Filed: 1991-09-12
Abstract: Générateur à turbine (10) constitué d'un rotor (14) comprenant des aimants (16) logés dans une partie en forme de réceptacle et tournant autour d'un noyau fixe (17) pour produire de l'électricité. Des jets de fluide viennent heurter tangentiellement une surface circonférentielle rugueuse (15) du rotor (14) avec un intervalle tel entre les jets que l'élargissement de chaque jet de fluide incident est minimisé par le jet de fluide adjacent situé en amont, pour transférer une plus grande force au rotor (14).
Patent CA-2093371-A1 (CA)
Title: Reading bar codes with a wide laser beam
Inventor: ROSA RALPH
IPC: G06K19/06
Filed: 1993-04-05
Abstract: READING BAR CODES WITH A WIDE LASER BEAM        Abstract of the Disclosure A height- or width-modulated bar code is decoded by scanning an oblong laser beam across the bar code.  Light reflected from the bar code varies in intensity as the laser beam traverses dark and light regions of the bar code.  The bar code can be decoded by locating the valleys in the variation of intensity of the reflected light, and comparing the depth of these valleys; the deepest valleys correspond to tall or wide bars and the remainder correspond to short or narrow bars.
Patent CA-2094834-A1 (CA)
Title: Endoscope couplere with liquid interface
Inventor: HORI KOICHIRO
IPC: G02B23/24
Filed: 1993-04-26
Abstract: ABSTRACT    An  improved  endoscope  assembly includes  a  quantity  of optically transparent liquid filling the space between facing windows of adjoining mechanically and optically coupled components to eliminate  fogging due to condensation and thereby provide improved image quality.  One component includes a male connector with its window at its mating end.   The other component has a recess defined therein for receiving the male connector.  A stop member on the connector abuts the other component to define maximal insertion of the connector and establish a space between the windows for retaining the liquid.  The space between the windows is sufficiently small to permit retention of the liquid in the recess by means of surface tension.
Patent CA-2095815-A1 (CA)
Inventor: HARPELL GARY A
IPC: B32B7/09
Filed: 1991-11-19
Abstract: A flexible article of manufacture especially suitable for use as a bal-listic resistant body armor which comprises a flexible substrate layer hav-ing a plurality of planar non-metallic bodies mechanically affixed to a surface thereof.
Patent CA-2098742-A1 (CA)
Title: Automatic pinsetter
Inventor: DELANEY FRANCOIS
IPC: A63D5/08
Filed: 1993-06-18
Abstract: ABSTRACT         An automatic pinsetter employing magnetically responsive bowling pins, an elevator mechanism employing magnetic means for retrieving bowling pins from a pit area adjacent an end portion of the bowling alley and for transporting the same to a pin discharge station above a transfer table.  The pins are deposited by the conveyor and associated gates in a bowling array on the transfer table which is thereafter moved bodily beneath a pinsetting mechanism.  The pinsetting mechanism employs magnetic means for elevating the pins in bowling array, the table is retracted from beneath the pinsetting mechanism, and the latter thereupon deposits the pins in howling array on the bowling alley.  The pinsetting mechanism is also adapted to pick-up and replace remaining upright pins after a first ball has been thrown whether the pins reside in "on spot" or "off spot" positions.  An improved bowling ball retrieval apparatus employing a suction cup is also incorporated in the pinsetter.
Patent CA-2100930-A1 (CA)
Title: Process for preparing a ceric ion-containing aqueous acid solution
Inventor: SUGISHIMA NOBORU
IPC: C07C205/46
Filed: 1993-07-20
Abstract: Abstract of the Disclosure In processes for preparing a ceric ion-contain ing aqueous acid solution by electrolytically oxidizing cerous ions in a cerous ion-containing aqueous acid solution using a diaphragm-free electrolytic bath having no diaphragm between the anode and the cathode, a process for preparing a ceric ion-containing aqueous acid solu-tion which comprises making at least one heterocyclic compound selected from the group consisting of five-mem-bered heteromonocyclic compounds having substituent(s), six-membered heteromonocyclic compounds having substi-tuent(s) and condensed heteropolycyclic compounds exist in the cerous ion-containing aqueous acid solution.
Patent CA-2100943-A1 (CA)
Inventor: PAYARD MARC
IPC: A61P25/18
Filed: 1993-07-20
Abstract: The invention relates to compounds of general formula (I): <IMAGE> with R1, R2, R3, R4, R5, R6 and Z defined in the description, to their optical isomers and to their addition salts with a pharmaceutically acceptable acid or base. Medicaments.
Patent CA-2103594-A1 (CA)
Title: Refresh control arrangement for dynamic random access memory system
Inventor: NUWAYSER SAMI H
IPC: G06F12/00
Filed: 1992-02-07
Abstract: A memory controller (14) for controlling a memory (11) including at least one memory bank (15). The memory controller (14) comprises a memory access control circuit (20) that receives memory access request over a bus and for performing a memory access operation in connection with a storage location in response thereto, a memory refresh control circuit (23) includes a yellow and a red refresh control circuit (91). The yellow refresh control circuit (90) initiates a refresh operation in operation with a memory bank other than the bank which the memory access control circuit is performing a memory access operation. The red refresh control circuit (91), on the other hand, initiates a refresh operation in connection with at least one memory bank and concurrently disables said memory access control circuit from performing a memory access operation.
Patent CA-2104079-A1 (CA)
Inventor: MORAWSKY NATALIE
IPC: A61K8/34
Filed: 1993-08-13
Abstract: This invention relates to hair fixing compositions containing a natural based hydrolyzed zein fixative which has a selected molecular weight,  the composition having low volatile organic compound (VOC) content.
Patent CA-2107158-A1 (CA)
Title: Aqueous dispersion or solution crosslinking with divinyl ether
Inventor: KROENER HUBERTUS
IPC: C09J4/02
Filed: 1993-09-28
Abstract: Abstract of the Disclosure:   An aqueous dispersion or solution of a polymer obtained by free radical polymeriz-ation and comprising from 0.01  to 10%  by weight of carboxyl groups -CO2H or sulfo groups -S03H contains, as a crosslinking agent,  a compound having at least two vinyl ether groups.
Patent CA-2111635-A1 (CA)
Title: Therapeutic for gram-positive diseases of aquatic species
Inventor: OSE EARL E
IPC: A23K20/195
Filed: 1993-12-16
Abstract: Abstract The invention is directed to the use of tilmicosin and other compounds of U.S. Patent 4,820,695 for the treatment of gram-positive bacterial pathogens in aquatic species.
Patent CA-2112359-A1 (CA)
Title: Valve arrangement
Inventor: AURELL ESKIL
IPC: F16K7/17
Filed: 1992-06-23
Abstract: A valve arrangement has a valve housing (4) with a valve chamber (12) formed therein, which has an outlet (13) and an inlet (23) which is adapted to be connected to a pressure-medium source (1).  A control valve (10, 26) is adapted, when in closed position, to close the outlet (13) of the valve chamber (12) and, when in open position, to open it. A main valve arranged in the valve housing has a valve member which is displaceable in the valve chamber and, depending on the pressure in the valve chamber, is shiftable between an outer closing position and an inner opening position.  The valve member consists of a piston (22) freely displaceable in a circular-cylindrical portion (15) of the valve housing (4). The inlet of the valve chamber consists of an annular gap (23) between the piston (22) and the circular-cylindrical portion (15) of the valve housing (4).
Patent CA-2116439-A1 (CA)
Title: Method of Separating Oleophilic-Hydrophobic Material from Wash Water
Inventor: MESTETSKY PAT A
IPC: C09K23/16
Filed: 1992-08-31
Abstract: A method of separating oleophilic-hydrophobic material from wash water is disclosed. The method comprises the steps of mixing with the wash water, either alone or in combination, about 30-2100 ppm of a surfactant having formula (I), where n is 6-20; and about 1-200 ppm of an enzyme selected from the group consisting of proteases, amylases, lipases, cellulases, pectinases and mixtures thereof. The mixture of wash water surfactant and/or enzyme is then permitted to stand for a time sufficient for the oleophilic-hydrophobic material to separate.
Patent CA-2116858-A1 (CA)
Title: Spectral signal analyzer system
Inventor: DAS PROMIT
IPC: G01J3/45
Filed: 1992-09-16
Abstract: A process for analyzing a spectral signal generated by a birefringent element and transmitted to an array. An output spectral signal emanating from the array is converted from an analog to a digital signal to establish a reference waveform which has a dominant frequency after the birefringent element is exposed to a known temperature. Thereafter, a current waveform is generated from the output spectral signal emanating from the array. A phase and frequency relationship is obtained by cross correlating the current waveform and the reference waveform. The dominant frequency for the phase and frequency relationship is obtained by Fast Fourier Transformation. Thereafter, the dominant frequency for the phase and frequency relationship of the current waveform is compared with the dominant frequency for the reference waveform to determine a temperature range. The temperature range and phase and dominant frequency for the current waveform are matched with a reference schedule stored in the memory of a digital signal processor to predict the current temperature experienced by the birefringent element. This predicted temperature is displayed on a screen to inform an operator of the current operational conditions experienced by the birefringent element.
Patent CA-2119182-A1 (CA)
Title: Device for loading skiers on chair lifts
Inventor: GOIRAND BERNARD
IPC: B61B12/02
Filed: 1994-03-16
Abstract: A boarding device for a chair lift comprises a rolling belt (walkway) which brings the skiers to the boarding location where they are collected in movement by the seat. The rolling belt has two end drums 17 whose external perimeter bulges in the form of a barrel in order to centre the rolling belt and is provided with cavities 28 preventing the build-up of snow or ice. <IMAGE>
Patent CA-2120176-A1 (CA)
Title: Joint guard
Inventor: KALVESTRAN JAMIE L
IPC: A41D13/08
Filed: 1994-03-29
Abstract: JOINT GUARD     ABSTRACT OF THE DISCLOSURE          A joint guard includes a flexible pad of cushioning material having a central portion and first and second outer portions extending from opposite sides of the central portion.  The pad is sized for the central portion to be positioned in overlying relation to the front of a joint with the inner and outer portions extending beyond the front and opposing inner and outer sides of the joint.  First and second impact resistant shells are secured to the pad.  The pad has a first recess formed on the central portion and sized to receive a patellae of the joint, and a second recess formed on the central portion and sized to receive a tibial tuberosity of the joint.  The first shell is positioned in alignment with the first recess.  The second shell is positioned beneath the first shell and pivotally secured relative to the first shell for the shells to pivot about an axis generally parallel to a bending axis of the joint.
Patent CA-2123140-A1 (CA)
Inventor: GAGNON GILLES
IPC: B44F11/02
Filed: 1994-05-09
Abstract: Dans un outil servant servant à appliquer de la peinture au moyen d'un rouleau on sait que l'on insère une rechange en mousse ou autre matériel sur un support tournant. Dans la présente invention la surface de la rechange est façonnée de façon à imprimer des motifs, donnant l'impression de relief sur la surface à peindre, en même temps que l'application de la peinture.
Patent CA-2123495-A1 (CA)
Title: B-ketoacyl-acp synthetase ii genes from plants
Inventor: KINNEY ANTHONY J
IPC: C12P7/64
Filed: 1992-11-12
Abstract: The preparation and use of nucleic acid fragments encoding .beta.-ketoacyl-ACP synthetase II enzyme or its precursor to modify plant oil composition are described. Chimeric genes incorporating such nucleic acid fragments and suitable regulatory sequences may be used to transform plants to control the levels of saturated and unsaturated fatty acids. Plants transformed with the chimeric genes, seeds and oil of such plants are also provided.
Patent CA-2126134-A1 (CA)
Title: Process for the preparation of polyoxymethylene terpolymer having high degree of polymerization
Inventor: YAMAMOTO KAORU
IPC: C08G2/10
Filed: 1994-06-17
Abstract: Abstract To provide a process for preparing at high efficiency a polyoxymethylene terpolymer having a high degree of polymerization which is improved in heat stability.    In the process for the preparation of a polyoxy-methylene terpolymer having a high degree of polymerization which comprises copolymerizing trioxane as a principal monomer with a cyclic ether or cylcic formal as a comonomer and a polyfunctional glycidyl compound having at least two epoxy groups in its molecule as a third component in the presence of boron trifluoride or a coordination compound thereof as a catalyst, the total amount of the impurities causative of the formation of unstable ends contained in the reaction system is regulated to 1 x 10-2 mole % or below based on the whole amount of the monomers; the catalyst for the copolymerization is used in an amount of 1 x 10-3 to 1 x 10--2 mole % based on the whole amount of the monomers; and the copolymerization is followed by the cooling of the product to a temperature of 45°C or below within 30 seconds to deactivate the catalyst.
Patent CA-2126671-A1 (CA)
Title: Orthodontic band sterilization cassette
Inventor: JOHNSEN-BRIGHAM SUSAN
IPC: A61C7/00
Filed: 1992-12-23
Abstract: A multiple compartment box for use in sterilizing and segregating small parts, such as orthodontic bands. The box is shaped as a cassette (10) with multiple compartments with indicators (16, 17) which assist in segregating the small parts for ease in differentiation of the parts. The box incorporates a sliding lid (14) which can be locked into different positions to further assist in segregating the small parts.
Patent CA-2130668-A1 (CA)
Title: Method and apparatus for correcting hysteresis synchronous motor hunting
Inventor: CONNOLLY JOHN L III
IPC: H02P23/00
Filed: 1993-02-18
Abstract: A method and apparatus for accurately controlling a hysteresis synchronous motor velocity to eliminate low frequency hunting, which is characteristic of the motor (32). A nominal input phase current is modified by providing feedback information, thereby enabling a microprocessor control system (50) to modify the phase of a quadrature input current signal to the motor (32) and thereby eliminating hunting of the motor (32). Accordingly, in a high resolution scanning application, speed variations which could cause disturbing artifacts to appear in an output image are eliminated.  Velocity control, better than 15 parts per million, can be achieved.
Patent CA-2130739-A1 (CA)
Inventor: GOOSSEN KEITH W
IPC: C23C14/34
Filed: 1994-08-23
Abstract: COMPOSITION AND METHOD FOR OFF-AXIS GROWTH SITES ON                NONPOLAR SUBSTRATES Abstract:     Nonpolar substrates comprising off-axis growth regions for the growth of polar semiconductors, and a method for making such substrates, are disclosed. According to the invention, an erodible material, such as a photoresist, is applied to a substrate at a site and is exposed to radiation at that site which has an linear variation in energy at the surface of the erodible material.  Due to this variation in exposure energy, a taper results in the erodible material after development. The tapered region is then etched in a manner which etches both the erodible layer and the underlying substrate.  The taper in the erodible layer provides a varying attenuation during the etching process such that the taper of the erodible layer is transferred to the substrate.
Patent CA-2131718-A1 (CA)
Title: Improvements relating to controls for electrically heated water boiling vessels
Inventor: O'NEILL ROBERT A
IPC: A47J27/21
Filed: 1993-03-10
Abstract: An electric immersion heating element for a water boiling vessel has associated therewith a single thermal sensor which protects the element against overheating due to its being switched on when dry and also serves to switch off the element when water boils in the vessel. The heating element is of traditional construction with a sheathed wire-wound element proper affixed to a head plate and with a hot-return portion of the element proper affixed to the head plate to enable the element temperature to be sensed on the opposite side of the head plate, but the element sheath and the head plate are formed of stainless steel (or another material having a low thermal conductivity as compared to copper or brass), the fixation of the element hot return portion to the head plate is by means of a spot weld (or another highly localized fixation), an enclosure is provided on the element head in the region thereof whereat the element hot return portion is affixed and is arranged so that water fills the enclosure when the vessel is filled but is expelled therefrom by steam generated by water boiling in the vessel, and the single thermal sensor is arranged to be in close thermal contact with a highly localized area of the head plate corresponding to the location whereat the element hot return portion is affixed thereto on the opposite side thereof.
Patent CA-2131811-A1 (CA)
Title: X-ray detection of residual ceramic material inside hollow metal articles
Inventor: REMMERS TIMOTHY M
IPC: B22C1/00
Filed: 1993-04-08
Abstract: A hollow metal article can be made by casting a metal article around a ceramic core and leaching the core from inside the article.  These steps form a hollow space in the shape of the ceramic core. An x-ray detectable agent that has a higher x-ray density than the ceramic core is introduced into the core. Any core remaining inside the article after the leaching step is detected by making and analyzing an x-ray radiograph of the article.