baber/WOPTO huggingface dataset:
Patent CA-2081694-A1 (CA)
Title: Quadrature Modulation Circuit
Inventor: OSAKA MASAHIKO
IPC: H03L7/183
Filed: 1992-10-29
Abstract: A quadrature modulation circuit is incorporated in a radio communication apparatus and selectively implements transmission and reception in an analog mode or in a digital mode using a single circuit. A VCO (Voltage-Controlled Oscillator) or a frequency synthesizer including a VCO has an analog modulation capability, and replaces a local oscillator of a conventional modulator circuit for feeding an output thereof to a digital modulator.
Patent CA-2082368-A1 (CA)
Title: Biocidal decylnonyl and decylisononyl dimethylammonium compounds
Inventor: EASTMAN DAVID W
IPC: A01N33/04
Filed: 1992-11-06
Abstract: Quaternary ammonium compounds having the structural formula:                        (See fig. X) wherein X is chloride, bromide, iodide or alkyl carboxylate having a C1-C18 alkyl radical, and R is n-nonyl or isononyl.  The disclosed compounds were found to be non-toxic, low foaming, effective biocides in treatment methods for controlling bacteria, algae and molluscs in aqueous systems.
Patent CA-2083668-A1 (CA)
Title: Locking assembly for bearing
Inventor: HANNON THOMAS L
IPC: F16C35/067
Filed: 1992-11-24
Abstract: ABSTRACT         A locking assembly for a bearing, such as a bearing for a rolling mill roll, the roll having a journal for the bearing, the bearing including a cylindrical sleeve member at its outermost end mounted on an axially outer portion of the journal, the end of the sleeve formed to have a radially inward shoulder, and a radially outwardly cylindrical projection, the shoulder having a wedge-shaped cam surface formed at its outer most axial surface, an axially movable outer nut constructed to pass over the journal and having a radially inwardly annular shoulder, the shoulder of the nut having a wedge-shaped cam surface arranged to cooperate with the cam surface of the sleeve shoulder to force the sleeve in an axially inward direction on its rotation when secured to the roll, the nut including several radially outward holes spaced angularly of the axis of the bearing for allowing the nut to be rotated, cooperative openings in the nut and the projection of the sleeve for receiving bolts for securing the nut to the sleeve once the two cam surfaces have been brought into a desired locking position, the nut having an axially outwardly annular shoulder, and the roll having a retainer member for engagement with the shoulder of the nut for securing the locking assembly in a fixed position relative to the roll and bearing.
Patent CA-2084453-A1 (CA)
Title: Method and apparatus for tagging video frames
Inventor: WALKER STEPHEN S
IPC: H04N7/169
Filed: 1992-12-03
Abstract: 91-3-130 METHOD AND APPARATUS FOR TAGGING VIDEO FRAMES ABSTRACT Method and apparatus for tagging fields in television format having active portions. A video encoder at the source of the fields embeds at least one repetitive series of pseudo-random characters with marks in the active portions of fields. The position of each of the marks corresponding to one or more of the characters. The marks pseudo-randomly change position with subsequent fields.
Patent CA-2085508-A1 (CA)
Inventor: HAVENS DALE I
IPC: F16H39/18
Filed: 1992-12-16
Abstract: A fluid pressure independent, mechanically controlled dampener for a hydrostatic transmission pump track ring is shown.  In one embodiment, two opposing wedge-shaped blocks are biased against each other by a spring-loaded bolt.  A pad, axially adjacent the track ring on one side and axially adjacent and held together with one block by a Z-bracket on the other side, is biased against the track ring by pressure exerted through the spring-loaded bolt and wedging action of the opposing wedges.  In another embodiment, a spring-loaded piston disposed within a spring housing, exerts pressure against a first pad axially adjacent the track ring to hold the track ring against another pad axially adjacent and opposite the first pad.
Patent CA-2085557-A1 (CA)
Title: Dihydropyrimidine derivatives
Inventor: POSS MICHAEL A
IPC: C07D239/91
Filed: 1992-12-16
Abstract: Abstract DIHYDROPYRIMIDINE DERIVATIVES        Novel A-II receptor antagonists have the formula I                           or its isomer I'                            wherein R1, R2, R3, R4, R5, and R6, are as defined herein.  These compounds inhibit the action of angiotensin II and are useful, therefore, for example, as antihypertensive agents.
Patent CA-2086023-A1 (CA)
Title: Laser-inscribable plastic molding composition, process for the preparation thereof, and the use thereof
Inventor: HAACK ULRICH
IPC: C08K3/013
Filed: 1992-12-22
Abstract: Abstract of the disclosure Laser-inscribable plastic molding composition, process for the preparation thereof, and the use thereof A laser-inscribable plastic molding composition comprises an organic polymer,  preferably a polyacetal,  an  in-organic, photoactive white pigment and,  if desired, a further additive. Moldings produced therefrom are pro-vided with an  abrasion-resistant and  permanent  dark inscription, preferably a black coloration, by irradia-tion by means of an excimer laser.
Patent CA-2090501-A1 (CA)
Title: Current control/power limited circuit
Inventor: SPRING HAROLD G
IPC: G05F1/575
Filed: 1993-02-26
Abstract: Abstract of the Disclosure An analog circuit provides selectable current control and power limiting for a connected load.  A current control loop is combined with a voltage/power control loop to generate a current level signal via an output transistor to control current flow through a load.  Current through a load is monitored with the current control loop maintaining current flow through the load at a selected value.  If a selected power level is exceeded, the current is reduced by the voltage/power control loop.  Voltage monitoring and feedback is used to control the operating power for a power level control operational amplifier and thereby maintain a selected power level.  By providing multiple, voltage dependent gains in the voltage feedback loop, a piecewise linear approximation of a desired power curve can be obtained.
Patent CA-2093136-A1 (CA)
Title: Vacuum metallization of substrates
Inventor: O'NEILL JOHN R
IPC: C23C14/20
Filed: 1991-10-03
Abstract: The present invention provides an apparatus which utilises a drum or cylinder for "casting" an electron-curable premetallisation coating onto a paper substrate. The premetallisation process comprises the steps of (a) coating a drum (24) with a liquid coating, said coating being performed by said drum contacting at least one roller (21) to supply said coating; (b) passing a paper substrate (18) over the drum in contact with the coating; (c) electron curing in a chamber (11) of an electron curing apparatus (12) of the coating whilst in situ on the surface of the drum; (d) removing the paper substrate from the drum surface. In another aspect of the invention the paper substrate is first coated and then passed over the drum and electron cured.
Patent CA-2093992-A1 (CA)
Inventor: SHORTT DOUGLAS B
IPC: A63B55/60
Filed: 1993-04-14
Abstract: UNITED STATES/CANADA                 ABSTRACT OF THE DISCLOSURE           A light, portable golf riding apparatus that may be electric motor or pedal driven. The lightness of the apparatus  is provided in part by using a tubular construction, with few, if any, panels, and portability is provided by having the apparatus formed from  several  sections  or  frameworks  pivoting  in relation to each other. In one embodiment, a first central section holds the power train and rear wheels, a front section holds the steering column, and a third a seat for the rider. The central and front sections pivot towards each other, the seat folds onto the central section and the steering collapses about the apparatus to form a compact body.
Patent CA-2094926-A1 (CA)
Title: Method of recovering substantially pure co2 from a fermentation gas
Inventor: VAN OEVEREN PIETER W
IPC: C01B32/50
Filed: 1991-10-24
Abstract: This invention relates to a method of recovering substantially pure CO2 from a fermentation gas polluted with organic compounds and with sulphur compounds, which method comprises washing the gas with water or an aqueous solution under such conditions that the gas contains no more than 2.5, preferably no more than 1.25 ppm organic impurities, oxidizing the oxidizable impurities, removing the major part of the water, and drying the CO2 to the desired water content.
Patent CA-2095030-A1 (CA)
Title: External urinary catheter having integral adhesive means
Inventor: CONWAY ANTHONY J
IPC: B29C41/22
Filed: 1991-11-12
Abstract: The external urinary catheter (10) includes (a) a single tubular sheath (11) having a unitary construction made of silicone rubber, the silicone rubber having an inner surface (12) and an outer surface (14); and (b) a layer (IS) of adhesive material bonded to a first portion of the inner surface; wherein the adhesive material can releasably contact portions of the outer surface such that the inner surface of the silicone rubber sheath can be rolled up on the outer surface thereof. A method of making an ex-ternal urinary catheter is also disclosed. Said method includes the steps of (a) coating a first portion of a mandrel with an adhe-sive material; (b) subsequently overcoating the mandrel with a silicone rubber solution to form an overcoat layer made of unvul-canized silicone rubber; and (c) vulcanizing the unvulcanized silicone rubber such that constituents of the silicone rubber cross-link to form an elastomeric sheath having a unitary construction made of vulcanized silicone rubber; the silicone rubber sheath having an inner surface and outer surface; and the adhesive material being bonded to a first portion of the inner surface.
Patent CA-2095172-A1 (CA)
Title: Process for Preparing Ready-To-Eat Cereal Flakes
Inventor: HOLTZ WILLIAM E
IPC: A23L7/117
Filed: 1993-04-29
Abstract: The present invention relates to a process for preparing ready-to-eat cereal flakes having edible particulate matter embedded therein and attached thereto.      More specifically, the ready-to-eat cereal flake comprising cooked cereal grain and edible particulate matter embedded therein in a substantially uniform manner arid additionally having edible particulate matter attached thereto.
Patent CA-2096456-A1 (CA)
Title: Method for constructing a railroad in concrete
Inventor: VANOTTI GERARD
IPC: E01B21/00
Filed: 1993-05-18
Abstract: Abstract The  method  relates  to  the laying of rails in a trench into which concrete.is subsequently poured in order to fasten the rails.        The  method  consists  in laying adjustable-length ties  (4)  on  the  bottom  of  the trench (3), in roughly positioning the rails (14, 15) by means of block-supports, in  fastening  the  ties  to the rails by using tie-screws (10)  and  anchor  sleeves  (11)  as  bolts  and  nuts, in adjusting  the length of the ties and in leveling the ties by means of auxiliary screws (18), and then in pouring the concrete, the auxiliary screws being subsequently removed. The ties are preferably pre-equipped with tie-screws, with sleeves  and with rail-fastening clamps and the tie-screws and  the sleeves may also be used for fastening tie-plates to the ties.
Patent CA-2096506-A1 (CA)
Inventor: GIBSON WALTER T
IPC: A61K8/00
Filed: 1993-05-18
Abstract: A composition suitable for topical application to mammalian skin and hair for inducing, maintaining or increasing hair growth comprises a hair growth promoter chosen from glutamic acid derivatives and salts thereof. The composition preferably also comprises an activity enhancer which may be chosen from hair growth stimulants, penetration enhancers and cationic polymers.
Patent CA-2096522-A1 (CA)
Title: Optical switch
Inventor: BLOW KEITH JAMES
IPC: G02F3/00
Filed: 1991-11-27
Abstract: An optical switch comprises an optical fibre Sagnac loop interferometer (2) having an input port (10) and an output port (12). A source of optical signals (26) at 1.53 µm is coupled to the input port (10) and a source of control optical signals (18, 20) of wavelengths 1.30 µm and 1.31µm are coupled to the interferometer (2) by a dichroic coupler (8). The coupler (8) splits the 1.53µmn input optical signal into two signal portions which counterpropagate round the loop (6) and couples the control signal to propagate in one direction only round the loop (6). The phase difference between the signal portions at the output port (12) is dependent on the intensity of the control optical signal when they recombine at the coupler (8). The optical control signals are formed by combining at least two optical pulse streams, the pulses of distinct optical pulse streams being non-interferometric, to provide a logical AND gate.
Patent CA-2096638-A1 (CA)
Title: Constant force air cushion arrangement for automotive side impact protection
Inventor: WELLER PETER A
IPC: F16F9/04
Filed: 1992-08-27
Abstract: A constant force air cushion arrangement (14) for side impact protection, including a plurality of air cells (28) mounted on the inner door panel (16). A tapered stem (30) is integrally molded on the inner surface of each cell (28) so as to extend toward the inner door panel (16). An orifice opening (34), which may have a diaphragm (32) mounted therein, is formed in a wall (26) of each cell (28) adjacent the distal end of the tapered stem (30). In the event of a side impact of a predetermined force, the stem (30) enters the orifice opening (34), either directly, or by bursting through the diaphragm (32) in response to the relative velocity between the door (10) and an occupant to progressively restrict the orifice opening (34) and, hence, the volume of air forced out through the orifice (34), by a progressively decreasing velocity between the door (10) and the occupant.
Patent CA-2101165-A1 (CA)
Inventor: LANDUA WERNER
IPC: B23Q7/16
Filed: 1991-12-21
Abstract: The invention concerns a conveyor device, preferably for conveying workpieces (1) between work stations, the device having an upright (2) and at least one holder (3) mounted on the upright (2) and holding the workpiece (1).  The holder (3) is fitted in turn with at least one holding element (4) which can be brought into engagement with the workpiece (1).  In order to increase the work rate, at the same time keeping the dimensions of the device as small as possible, in particular in the handling of foundry cores and moulds, the device is designed in such a way that the holder (3)  can be continuously rotated about a vertical axis (5) so that the holding element (4) executes a substantially arcuate motion.
Patent CA-2101910-A1 (CA)
Inventor: THERIAULT BERTRAND R
IPC: A46B7/02
Filed: 1993-08-04
Abstract: An adjustable toothbrush where the user can select, by turning a thumb knob on the brush handle, the incli-nation of the bristles to thereby improve on the cleaning of those hard to reach areas of the dentition.    The toothbrush comprises a handle, a hollow brush body, a plurality of bristle bundles having their base moulded into  resilient  holders,  a  cam  plate,  a  thumb  knob connected to a cam shaft and a brush body cover.  The cam plate slides within the hollow brush body and the brush body cover in a plane perpendicular to the bristles, and under the action of the thumb knob.  The cam plate has a plurality of cavities for receiving the end of the bristle holders.  Thus the movement of the cam plate is transmitted to all bristles in harmony.
Patent CA-2102442-A1 (CA)
Title: Method and apparatus to determine object striking instrument movement conditions
Inventor: GOBUSH WILLIAM
IPC: G01S17/18
Filed: 1993-11-04
Abstract: ABSTRACT      A striking instrument and struck object monitoring system including at least two shutterable camera units which view a field of view each of which cameras receives light patterns from each and every one of a plurality of contrasting areas on the instrument and the object in rapid successive sequence.  A computer receives the signals generated by the light patterns as received by each camera unit which computer discriminates between such signals to determine the instrument's movement and orientation, and the conditions at impact with the object.      The striking instrument may be any selected golf club which club is initially scanned by the system to determine it's proper striking location prior to the club being swung through the field of view.
Patent CA-2104442-A1 (CA)
Inventor: VICIK STEPHEN J
IPC: B32B27/08
Filed: 1993-08-19
Abstract: Tubular, biaxially stretched, heat shrinkable multilayer film food casings comprising inner and outer polyamide layers on either side of a core layer predominantly of one or more polyolefins such as VLDPE or EVA and a coextrusion process for making the film.
Patent CA-2106230-A1 (CA)
Title: Polarizing Glasses
Inventor: BORRELLI NICHOLAS F
IPC: C03C14/00
Filed: 1993-09-15
Abstract: This invention is directed to a glass containing elongated silver halide crystals selected from the group consisting of AgCl, AgBr, AgI, and mixtures thereof which is capable of polarizing radiation in the visible portion of the radiation spectrum and which does not exhibit photochromism when exposed to radiation in the ultraviolet/ visible portions of the radiation spectrum, wherein the composition of the glass is essentially free of copper and includes an amount of CeO2 effective to retain the silver in the glass composition in the oxidized state.
Patent CA-2106863-A1 (CA)
Title: Process for preparing an alkanone and/or alkanol
Inventor: HOOGENDOORN PETER
IPC: C07C27/12
Filed: 1992-03-19
Abstract: The invention relates to a process for preparing an alkane and/or alkanol by oxidizing an alkane with 3-30 C-atoms, us-ing oxygen, to form an alkyl hydroperoxide, followed by a decomposition of the resulting alkyl hydroperoxide in the presence of a metal compound immobilized on a carrier, which carrier carries aliphatic or aromatic amine groups or sulphide groups. The process is preferably applied to cycloalkanes.
Patent CA-2107911-A1 (CA)
Title: Silyl phosphorylating reagents and methods of using them
Inventor: CELEBUSKI JOSEPH E
IPC: C07H23/00
Filed: 1992-06-05
Abstract: Novel silyl alcohols having bulky substituents bonded to the silicon, and the silyl group attached to a carbon include the preferred 2-silyl-ethan-1-ols. A method for synthesizing silyl substituted alcohols include hydrosilation of a vinylic ester, especially vinyl acetate, followed by hydrolysis in mild base. The silyl alcohols are useful in preparing phosphorylating reagents for phosphorylating an oligonucleotide. The phosphorylated intermediate bearing the silyl group may be separated from failure product on the basis of bulky substituents on the silyl protecting group, which is later removed, e.g. by fluoride ion.
Patent CA-2108839-A1 (CA)
Inventor: KITO TSUTOMU
IPC: B32B7/02
Filed: 1993-10-20
Abstract: There are provided a thermochromic opaque composition capable of exhibiting change in transparency together with change in color in response to temperature variation, a laminate member employing the same, and a three-dimensional article capable of concealing and revealing the interior, utilizing the laminate member.      The thermochromic opaque composition is formed by dispersing a thermochromic material, capable of developing and erasing color by an electron donating-accepting reaction, in small particles in vinyl chloride-vinyl acetate matrix resin.      The above-mentioned structure realizes reversible change in transparency, together with change in color, in response to temperature variation, with hysteresis with a temperature difference of 10°C at minimum to 50°C between the high and low trigger temperatures.
Patent CA-2110268-A1 (CA)
Title: Filled polymer compositions
Inventor: MOORMAN GERALDINE A
IPC: C08F20/12
Filed: 1993-03-31
Abstract: A fluid, highly filled curable composition comprising an unsaturated polyester composition, from 35 to 85 % by weight of a finely divided inorganic filler having specified particle size and surface area and a carboxylic acid ester or amide carrying a terminal acid group selected from sulphate sulphonate, phosphate and phosphonate. Compositions have attractive rheology characteristics enabling products to be readily fabricated, such products having excellent fire and smoke properties.
Patent CA-2110444-A1 (CA)
Title: Apparatus and method for indexing sheets
Inventor: HEIMANN EDWARD W
IPC: B65H35/04
Filed: 1993-12-02
Abstract: APPARATUS AND METHOD FOR INDEXING SHEETS            ABSTRACT OF THE DISCLOSURE:        Apparatus and method for indexing sheets cut from a web including a production line having an unwind at one end and a backstop at the other end, a printer and a rotary knife between the ends, the relation of the knife speed to the web speed being changed cyclically to develop longer and shorter sheets.
Patent CA-2113672-A1 (CA)
Inventor: HUBA FRANCIS
IPC: B01J38/00
Filed: 1994-01-18
Abstract: A novel process and chemicals are disclosed for the rejuvenation of oxidation catalysts used to reduce the production of pollutants in the exhaust gas emanating from an internal combustion engine, particularly catalysts used in theconverters of automobiles and other combustion engine powered vehicles. The rejuvenation may be done in place, within minutes, without removing the holding containers or converters or the catalyst from them. The rejuvenation is effectedby treating the used catalyst with an aqueous solution of a peroxide which is decomposable at the temperature of treatment. The concentration of solution, theproportion of solution per unit volume of catalyst and the time of treatment areimportant factors in the effectiveness in regenerating or rejuvenating the catalyst.
Patent CA-2115047-A1 (CA)
Inventor: ROPER RENEE M
IPC: C08F8/32
Filed: 1992-08-06
Abstract: The invention relates to a two-cycle oil additive, compositions and concentrates containing said two-cycle oil additive and methods of preparing and using the two-cycle oil additive which comprises the reaction product of (A) at least one high molecular weight acylating agent, (B) at least one polyalkylenpolyamine and (C) at least one monocarboxylic second acylating agent, wherein the molar ratio of the carboxylic acid acylating agent to the high molecular weight acylating agent is at least 3:1 and wherein the tertiary amine to total amine ratio of the reaction product is at least 0.7:1. The two-cycle oil additive of the invention are dispersant additives which will improve engine cleanliness and which will substantially avoid the formation of insoluble gel agglomerants at low temperatures which can adversely affect engine performance.
Patent CA-2115423-A1 (CA)
Title: Titanium extraction
Inventor: TURNEY TERENCE W
IPC: C22B3/14
Filed: 1992-08-19
Abstract: A process for producing a titanium product, which process includes: providing a titanium-containing material; and a leaching composition including: a source of ammonia or ammonium ions; a source of carbon dioxide or carbonate ions; and water; and contacting the titanium-containing material with the leaching composition to form an aqueous slurry for a time sufficient to form a soluble titanium leach product; and isolating a leaching solution containing the titanium leach product so formed.
Patent CA-2117106-A1 (CA)
Inventor: MELTON MARK J
IPC: A61F2/46
Filed: 1994-03-07
Abstract: ABSTRACT: A broach handle for use with an orthopedic broach includes an elongated handle having one end portion for making a connection with the broach and another end portion for gripping by the user and having an anvil that allows the handle to be hammered. A rotating locking member is carried in a slot at the distal end portion of the handle. The rotating locking member has inclined surfaces that allow the broach to separate from the handle when the inclined surface is positioned adjacent the broach. The rotating locking member also includes a thickened portion that forms a connection with the broach when positioned adjacent the broach.