baber/WOPTO huggingface dataset:
Patent CA-2008797-A1 (CA)
Title: Light-reflection method for transmission-loss measurements in optical fiber lightguides
Inventor: BUKHSHTAB MIKHAIL A
IPC: H04B10/08
Filed: 1990-01-29
Abstract: LIGHT-REFLECTION METHOD FOR TRANSMISSION-LOSS   MEASUREMENTS IN OPTICAL FIBER LIGHTGUIDES                          A B S T R A C T      Object - to increase versatility by way of providing for the possibility of measuring losses in any of the i-th light-guides out of an arbitrary number of lightguides spliced so as to accommodate minimal air gaps, and at the joint between the (i - 1)-th and i-th lightguides spliced without an air gap (i-th joint), which is ensured by making successive measurements of the energy of reflected pulses from the energy and total power of the components of a radiation pulse from the end faces of the last and intermediate lightguides and their spliced end faces, and measuring optical losses from methematical formulas. Bibl. 1.  Ill. 2.
Patent CA-2008943-A1 (CA)
IPC: H04N1/417
Filed: 1990-01-30
Abstract: A coding method of a binary Markov information source comprises the steps of providing a range on a number line from 0 to 1 which corresponds to an output symbol sequence from the information source, and performing data compression by binary expressing the position information on the number line corresponding to the output symbol sequence.  The present method further includes the steps of providing a normalization number line to keep a desired calculation accuracy by expanding a range of the number line which includes a mapping range, by means of a multiple of a power of 2, when the mapping range becomes below 0.5 of the range of the number line; allocating a predetermined mapping range on the normalization number line for less probable symbols LPS proportional to its normal occurrence probability; allocating the remaining mapping range on the normalization number line for more probable symbols MPS; and reassigning the predetermined mapping range to the remaining mapping range the half of a portion where the allocated remaining range is less than 0.5, when the allocated remaining range becomes below 0.5.
Patent CA-2010934-A1 (CA)
Title: Sustained release bolus effective for the prolonged prevention, treatment or control of nematode, acarid and endo- and ectoparasitic infestations of ruminants
Inventor: WOOD IRWIN B
IPC: A23K20/00
Filed: 1990-02-26
Abstract: A sustained release bolus composition, containing a prophylactically effective amount of a compound selected from LL-F28249.alpha., 23-(O-methyloxime)-LL-F28249.alpha. and derivatives thereof provides a method for protecting ruminant animals for a prolonged period of time against infestation by nematodes, acarids and endo- and ectoparasitic insects, and which over time can also eliminate the initial population of parasites present at treatment.      The invention also relates to a method for the systemic control of ectoparasitic insect infestations of ruminant animals by orally administering to said animals a sustained release bolus containing an insecticidally effective amount of LL-F28249.alpha., 23-(O-methyloxime)LL-F28249.alpha. or derivative thereof, which continuously releases into the rumen of the treated animal a systemically effective amount of LL-F28249.alpha., 23-(O-methyloxime)LL-F28249.alpha. or derivative thereof.
Patent CA-2011968-A1 (CA)
Title: Bipolar electrode and process for manufacturing same
Inventor: RAO BHASKARA M L
IPC: H01M4/02
Filed: 1990-03-12
Abstract: ABSTRACT OF THE DISCLOSURE      There is described an improved bipolar electrode comprised of an intermediate double-sided adhesive conductive plastic film or layer disposed between electronegative and electropositive layers wherein the intermediate layer has a volume resistivity of at least 0.5 ohm-cm. as well as a process for manufacturing same by passing a laminate of such layers through a pressure roller assembly at pressures between 30 to 500 psig.
Patent CA-2014370-A1 (CA)
Inventor: KOGA RITSUO
IPC: G03B21/06
Filed: 1990-04-12
Abstract: ABSTRACT OF THE DISCLOSURE      An opaque projector having a stage which transmits illumination light from a light source and on which an object to be projected can be placed.  There is a projecting mirror for reflecting light reflected by the object to be projected, and a projecting lens for converging reflected light from the projecting mirror and imaging a projected image of the object on an external projection plane.  The opaque projector has a mechanism capable of changing the angle of the stage on which the  object to be projected can be placed in such a manner that the object to be projected, the optical axis of the projecting lens and the projection plane meet a Scheimpflug condition.
Patent CA-2018612-A1 (CA)
Title: Catalytic process for producing higher alcohols from synthesis gas
Inventor: MILLER JEFFREY T
IPC: C07C29/156
Filed: 1990-06-08
Abstract: CATALYTIC PROCESS FOR PRODUCING HIGHER ALCOHOLS FROM SYNTHESIS GAS                  ABSTRACT OF THE DISCLOSURE           A two-stage process for converting synthesis gas to higher alcohols includes an alkali metal-containing cobalt synthesis gas conversion catalyst in a first stage and a copper containing catalyst in a second stage.  The process allows great flexibility in selecting the product mix by changing catalyst compo-sitions and process conditions.
Patent CA-2020415-A1 (CA)
Inventor: CARPENTER CLINT W
IPC: C09D7/45
Filed: 1990-07-04
Abstract: Compounds useful for improving the dispersibility of micaceous particulates in aqueous-based coating compositions comprise urethanes or ureas which are the reaction products of silylalkyl or silylaryl isocyanates with alcohols, amines, polyether alcohols or amine-terminated polyethers. The compounds may also be the reaction products of silylalkyl- or silylarylamines with half-blocked diisocyanates which are themselves the reaction products of a diisocyanate with an alcohol, amine, polyether alcohol or amine-terminated polyether.      Micaceous particulates which have been surface modified by reaction with these compounds, as well as coating compositions comprising such surface-modified micaceous particulates, and coated substrates are also disclosed.
Patent CA-2020473-A1 (CA)
Inventor: KAWASHIMA MITSUNOBU
IPC: C08F4/00
Filed: 1990-07-05
Abstract: Provided are polymerizable compositions comprising: (a) a sulfinate represented by the general formula (I]    wherein R1 and R5 each represents a substituent having 2 to 6 carbon atoms, R2, R3 and R4 each represents an atom or substituent inert to the below-described monomer (b), M n+ represents a n-valent cation and n represents an integer of 1 to 4 ; and (b) a monomer. (a) is an aromatic sulfinate substituted with bulky groups at its positions 2 and 6. Since the bulky substituents dramatically suppress the addition of the sulfinate to the double bond of the monomers, e.g. (meth)acrylates, (meth)acrylamides and derivatives thereof, the compositions can be stored at room temperature for at least 1 year and thus are of great industrial value and, in particular very useful as dental adhesive compositions.
Patent CA-2021087-A1 (CA)
Title: Ultra high bypass engine integrated fan/cowl and transportation/removal
Inventor: ANTUNA EUGENE J
IPC: B64D29/02
Filed: 1990-07-12
Abstract: ABSTRACT OF THE DISCLOSURE      Method  and apparatus for enabling transport of very 1arge diameter gas turbine engines by seperating the  engine into a stator module and a  rotor  module, the  rotor module including all of the turbine and compressor stages of the engine. In one form, the transportable stator module includes an integrated fan case, fan cowl, and inlet. The stator module supports at least a forward portion of the rotor module with  a plurality   of  circumferentially  spaced   structural outlet guide vanes. The vanes are detachable at the rotor module interface to enable removal of the rotor module from the stator module. The fan blades are separable from the rotor module to allow separation of the rotor ant stator modules.
Patent CA-2021934-A1 (CA)
Title: Vending machine antirock mechanism
Inventor: MCGARRAH ROBERT G
IPC: G07F9/00
Filed: 1990-07-25
Abstract: ABSTRACT OF THE DISCLOSURE          A vending machine antirock mechanism is disclosed which is a safety feature for a soft drink vending machine to prevent rocking of the vending machine.  The antirock ratchet mechanism prevents oscillatory rocking of a vending machine by a potential pilferer until a sufficient forward tilt of the machine is attained to possibly allow soft drink products to be pilfered from the machine through the product dispensing chute.  A safety problem has been incurred here as the vending machines are very heavy, and can possibly fall on top of and injure the person rocking the machine or other persons in the proximity thereof.  The present invention is designed to prevent such rocking motions by mounting an antirock mechanism at one or more locations on the front of the machine, with a vertically movable antirock member therein, such that when the machine is first rocked backwardly, the antirock member moves downward vertically to the floor, and locks in an extended position to prevent the machine from rocking forwardly again.  The machine is then jammed in a rearwardly tilted position to prevent oscillatory rocking thereof.
Patent CA-2023004-A1 (CA)
Inventor: NOWACK GERHARD P
IPC: B01D53/02
Filed: 1990-08-09
Abstract: Trialkyl arsines are removed from fluids, in particular gases, by contacting with a solid sorbent material containing at least one manganese oxide (preferably MnO2) and at least one Group IB metal oxide (preferably CuO).   In a preferred feature, the used solid sorbent material is regenerated by oxidizing treatment, washing with an aqueous liquid, and drying.
Patent CA-2024860-A1 (CA)
Title: Reinforced film and method of manufacturing same
Inventor: WOICESHYN D MARK
IPC: B29C70/50
Filed: 1990-09-07
Abstract: ABSTRACT        A reinforced, impervious, unitary film and a method for making the same are disclosed.  In a preferred embodiment, a film is produced from a layer of weft inserted warp knit polyester scrim and at least one layer of polyester mat, together being impregnated with a suitable thermoformable plastic in liquid form such as PVC plastisol, then being set and calendered under pressure to deform the plastic and create a continuous, non-porous, unitary film.  The resulting product is highly resistant to water absorption and hydrostatic pressure and essentially non-wicking.
Patent CA-2025229-A1 (CA)
Title: Method of communication in mobile radio systems
Inventor: AKERBERG DAG E
IPC: H04W16/10
Filed: 1990-09-12
Abstract: A method of communication in at least one cellular mobile radio system in an environment of additional mobile radio systems with mobile stations capable of communication with more than one of the systems on any of a predetermined group of radio channels, not all systems being capable and allowed to use all of the radio channels in the predetermined group, wherein all base stations transmit on at least one of the radio channels in the group information regarding system and base identity and the channels of the system, wherein a mobile station is prevented from transmitting on any of the radio channels until after receiving information on base and system identity and the channels of the system, and the allocation of a radio channel in the group for a call is deternmined by a mobile seizing an idle channel.
Patent CA-2027128-A1 (CA)
Title: Edible spread
Inventor: HAVENSTEIN ALFRED G
IPC: A01J17/00
Filed: 1990-10-09
Abstract: A B S T R A C T            An edible emulsion comprises a dispersion of a 15-60%wt of a water phase in 40-85%wt of a continuous fat phase,  The water phase contains less than 0.05% protein, has a D3.3 below 2.0µ and a sigma value for the water drop size distribution of not more than 2.5.  These fat spread products do not contain either preservatives or emulsifiers and have acceptable organoleptic properties.  In the preferred form, the spreads are stable in the absence of an emulsifier system but may contain an emulsifier as an antispattering agent.
Patent CA-2027545-A1 (CA)
Title: Heat dissipating device for laser diodes
Inventor: FISHER JAMES H
IPC: H01S3/04
Filed: 1990-02-19
Abstract: A heat dissipating device (10) and method for dissipating waste heat produced by a solid state device (18), which includes (a) a solid state device (18) and (b) a heat sink for dissipating waste heat produced by the solid state device which includes a base member (14) being in thermal contact with the solid state device (18) and a plurality of elongated heat conducting elements (16) extending outwardly from the base member (14).
Patent CA-2028616-A1 (CA)
Title: End Flap File Folder and Method of Use
Inventor: HURE JEAN CLAUDE
IPC: B42F7/06
Filed: 1990-10-26
Abstract: A file folder with an end flap attached to one side is disclosed.   When the end  flap is folded it allows  for identification of the contents of the folder on one end of the folder.  The folder is filed in open racks, transversely to the front of the racks, so that the identification on the end flap is exposed and visible.  The end flap also lends strength and stability to the folder and prevents slippage of the contents of the folder when the folder is being handled and when the folder is filed.  The folder is of unitary construction and has no pertruding tabs when folded for packing and shipment.
Patent CA-2030557-A1 (CA)
Title: Imidazole derivatives, methods for their production and pharmaceutical use thereof
Inventor: MATSUI HIROSHI
IPC: C07D521/00
Filed: 1990-03-27
Abstract: The present invention relates to imidazole derivatives of the formula                  (I) wherein m and n are respectively an integer from 1 to 3, R1 is a hydrogen atom or an ester residue, and at least one substituent selected from alkyls having 1 to 10 carbon atoms and alkoxys having 1 to 15 carbon atoms may be comprised on the indoline skeleton and their pharmacologically acceptable salts, methods for their production and pharmaceutical use thereof.     The imidazole derivatives and their pharmacologically acceptable salts of the invention possess markedly superior pharmacological activities such as inhibitory activities on platelet aggregation and vasodilative activities, etc. due to suppressive activities on lipoperoxide production and inhibitory activities on thromboxane A2 synthase, and low toxicity, and thus, are useful for the prevention and treatment of asthma, thrombosis, embolism, arteriosclerosis, hypertension, hyperlipidemia, cerebral apoplexy, myocardial infarction, dementia, diabetes, and so on.
Patent CA-2030766-A1 (CA)
Inventor: KEROACK LUCIEN
IPC: G01N23/04
Filed: 1990-11-23
Abstract: VARIABLE X-RAY BEAM MODULATOR FOR WIDE-FIELD ANGIOGRAPHY      ABSTRACT OF THE DISCLOSURE A computer-controlled, motor-driven shutter assembly to be used with the X-ray tube of a large field angiographic system. The  shutter  assembly  installed  onto  the  angiography  system enables to compensate for  different patient  anatomy by reducing the relative  X-ray exposure time from the feet to the abdomen of the patient, so  as  to  achieve  uniform  radiographic exposure, without affecting  the X-ray  beam hardness.   The X-ray exposure time reduction is obtained  by gradually  masking the  X-ray beam during each exposure from the feet to the abdomen, through use of a motor-driven  lead  shutter.  A  radiation  sensor  detects the beginning  of  every  X-ray  beam exposure at the upper (leading) port of the large field, X-ray beam tube and in  turn, triggers a shutter controlling  circuitry.   The X-ray  exposure time of the patient from feet to  abdomen is  reduced according  to computer-generated  attenuation  curves  and gradients of patient contour. In consequence, body contrast remains high and constant from feet to abdomen and from patient to patient.
Patent CA-2032916-A1 (CA)
Title: Dynamic membrane separation process for improved selectivity
Inventor: LAPACK MARK A
IPC: B01D53/22
Filed: 1990-12-21
Abstract: ABSTRACT     A membrane separation and purification process for separation of one permeable component from another, where both components are contained in a multiple-component fluid mixture, as a dynamic function of the differences in respective rates of attainment of and declination from steady-state membrane permeation.  The process and apparatus are equally well suited to multi-component fluid mixtures that are liquid or gaseous.
Patent CA-2034557-A1 (CA)
Title: Coating compositions of acrylic polymers containing reactive groups and an epoxy organosilane
Inventor: DEN HARTOG HERMAN C
IPC: C08L83/00
Filed: 1991-01-18
Abstract: A coating composition which cures at ambient temperatures and contains 20-80% by weight of a binder and 80-20% by weight of a solvent for the binder, wherein the binder contains about:         A.   an acrylic polymer A of polymerized monomers of methyl methacrylate and monomers of styrene, alkyl methacrylate and/or alkyl acrylate each having 2-12 carbon atoms in the alkyl group and said polymer having pending from the polymer backbone aminoester groups, hydroxy aminoester groups or hydroxyamine groups, B.   an acrylic crosslinking polymer B of polymerized monomers of at least 3% by weight, based on the weight of the crosslinking polymer, of a glycidyl constituent of glycidyl methacrylate or acrylate and the remainder of the monomers are alkyl methacrylate an acrylate each having 1-'2 carbon atoms in the alkyl group and optionally contains at least 3% by weight, based on the weight of the crosslinking polymer, of an alkyl methacrylate or acrylate having a pendent group of the formula  ;    C.   an organosilane compound having an epoxy group; the composition is useful as an exterior finish for automobiles and trucks and for repairing and finishes of automobiles and trucks.
Patent CA-2035932-A1 (CA)
Title: Percussion core gun construction and cable arrangement
Inventor: BARKER JAMES M
IPC: E21B49/04
Filed: 1991-02-07
Abstract: ABSTRACT OF THE DISCLOSURE             An elongate gun assembly with multiple gun chambers is assembled with locking keys holding several chambers in place. In each, a bullet with bottom is placed adjacent to  explosive charge. An elongate cable having two end loops connects with the assembly and passes through the bullet. The cable is anchored on the bullet, and the two ends are unequal in length. They enable retrieval after firing. A method of cable coiling and retrieval is set out.
Patent CA-2038745-A1 (CA)
Title: Supported polyolefin catalyst for the (co-) polymerization of ethylene in gas phase
Inventor: CHAMLA CLAUDE
IPC: C08F4/654
Filed: 1991-03-21
Abstract: Case 7485/B217(2) ABSTRACT OF THE DISCLOSURE                SUPPORTED POLYOLEFIN CATALYST FOR THE (CO-)POLYMERIZATION OF ETHYLENE IN GAS PHASE      The present invention relates to a catalyst and a process for preparing a catalyst suitable for polymerization of olefins. The process is carried out in a hydrocarbon liquid medium and comprises successively contacting a refractory oxide support with (a) a dialkylmagnesium optionally with a trialkylaluminium, (b) a particular monochloro organic compound, (c) a titanium and/or vanadium compound(s), and then (d) with ethylene optionally mixed with a C3-C8 alpha-olefin in the presence of an organo-aluminium or organozinc compound to form a prepolymerised catalyst.  The catalyst has a high activity, particularly in a gas phase polymerization of ethylene, and has a great ability of copolymerizing alpha-olefins with ethylene.
Patent CA-2038753-A1 (CA)
Inventor: MCGREGOR GAVIN
IPC: B24B53/00
Filed: 1991-03-21
Abstract: In a method of cleaning and refurbishing employing a metallic grinding wheel supporting a non-conductive abrasive medium, a cathode is provided in spaced relationship with the abrasive surface so as to define a gap therewith. Electrolyte is caused to flow through the gap, and a low direct current is passed between the grinding wheel and the cathode through the electrolyte so that a small amount of metal is continually removed from the grinding wheel so that material trapped in the abrasive surface is dislodged and flushed away by the electrolyte flowing through the gap.
Patent CA-2040407-A1 (CA)
Inventor: MCGARRY PATRICK J
IPC: H04M17/02
Filed: 1990-09-10
Abstract: A method and apparatus for the detection and prevention of  pin  fraud  in  a  coin  operated  telephone  (2)  is disclosed.  A circuit (55) detects loss of loop current and triggers the opening of a pair of switches (S1,S2) thereby disconnecting the microphone from the phone.  The A-relay  is also switched to its refund and collect position.   As a result,  the fraud path through the microphone is disconnected, and the central office (4) can perform all its control functions unimpaired.  Thus, the incentives for perpetrating the fraud are eliminated.
Patent CA-2042911-A1 (CA)
Title: Taste modification composition and method for stabilizing taste-modifier
Inventor: KURIHARA YOSHIE
IPC: A23L29/00
Filed: 1991-05-21
Abstract: ABSTRACT OF THE DISCLOSURE A taste-modification composition comprises one or more selected from the group consisting of salt, carbohydrate, organic acid, amino acid and protein  and fresh Curculigo latifolia fruits, processed fruits there of  or  a curculin-containing material obtained therefrom.
Patent CA-2043941-A1 (CA)
IPC: B65B5/02
Filed: 1991-06-05
Abstract: Abstract of the Disclosure A group of objects is packaged in a package formed of a blank having a base panel, base flaps joined at respective longitudinally extending fold lines to the base panel, a pair of side panels joined at respective transversely extending fold lines to and longitudinally flanking the base panel, and respec-tive pairs of side flaps joined at respective longitudinally extending side fold lines to the side panels. Each pair of side flaps transversely flanks the respective side panel. The blank and group of objects are advanced longitudinally parallel to the side fold lines to a loading station with the blank horizontal and similarly the group of objects is advanced horizontally and longitudinally to the station and deposited on the base panel there. The side flaps are folded up through about 90°and there-after the base flaps are folded up through between 45°and 80° The side panels are then folded up through about 90° and the base flaps are pressed longitudinally against the side flaps and against the group of objects and thereby are adhered together to form a finished package.
Patent CA-2045889-A1 (CA)
Title: Method and apparatus for adaptive phong shading
Inventor: WELLS STUART
IPC: G06T15/83
Filed: 1991-06-28
Abstract: In the method and apparatus of the present invention an adaptive shading method is utilized to generate shaded images in real time. The color or intensity is first computed at each of the vertices of the polygon. A series of tests are then performed to determine the order equation that is to be used to interpolate the color or intensity across the polygon between the vertices.  Using this technique, polygons having a slight or no curvature and an infinite light source (thus being the simplest form of shading), will use an extremely fast, low order equation to interpolate across the polygon. Polygons, having a high degree of curvature and/or positional light source will utilize, as necessary, a higher order equation which requires additional computation time but produces desirable shading results.