baber/WOPTO huggingface dataset:
Patent CA-1285347-C (CA)
Inventor: BRAUER MELVIN
IPC: C08K5/10
Filed: 1985-05-24
Granted: 1991-06-25
Abstract: ABSTRACT        A plasticized polyurethane gel system comprising the reaction product of an isocyanate compound and a polyol in the presence of a plasticizer compound having a total solubility parameter of between about 9.1 and 10.1. Said polyurethane systems are cured, crosslinked, non-spewing, grease compatible, and reenterable.  This extended polyurethane is further characterized as having superior insulating properties so that it can be used for repairing, encapsulating or reclaiming electrical or telecommunication cables as well as for hard volume encapsulants or general elastomer use.
Patent CA-1297129-C (CA)
Title: Process for the preparation of n-acetyl-p-aminophenol
Inventor: SATHE SHARAD S
IPC: C07C231/02
Filed: 1985-11-07
Granted: 1992-03-10
Abstract: IMPROVED PROCESS FOR THE PREPARATION      OF N-ACETYL-P-AMINOPHENOL            Abstract of the Disclosure An improved process for the preparation of N-acetylp-aminophenol.  p-Aminophenol is acetylated in an aqueous medium to produce a crude aqueous reaction mixture and N-acetyl-p-aminophenol product is recovered by crystal-lization from an aqueous system comprising the reaction mixture.  Crystals are separated from the crude mother liquor which contains residual N-acetyl-p-aminophenol and unreacted acetic acid.  According to the improvement, residual N-acetyl-paminophenol and acetic acid are recovered from the crude mother liquor by liquid-liquid extraction with a water-immiscible organic solvent to produce an extract containing N-acetyl-p-aminophenol and acetic acid.  The extract is distilled to strip off the solvent and acetic acid.
Patent CA-1312319-C (CA)
Title: Screw rotor mechanism with thermal, safety and coating sensitive fit
Inventor: MIYOSHI KIYOTADA
IPC: F04C18/16
Filed: 1986-07-08
Granted: 1993-01-05
Abstract: ABSTRACT         Dry-sealed screw rotors for compressors includes rotor tooth profiles in which an inter-tooth gap at a profile point on male and female rotor of a normal temperature is determined by an amount of interference due to thermal expansion caused during the operation of the compressors and an amount of minimum safety clearance necessary for the operation.  The inter-tooth gap is further determined by a total thickness of seal coatings applied to the peripheral surfaces of the rotors at  a profile point at which thus determined gap is smaller than the total thickness of seal coatings.  With thus shaped rotor teeth, a most preferable seal line is achieved to produce an improved compression efficiency.
Patent CA-1280174-C (CA)
Inventor: CARTMELL JAMES V
IPC: A61B5/0408
Filed: 1986-07-09
Granted: 1991-02-12
Abstract: ABSTRACT A medical electrode assembly which is otherwise free of metal in the area of attachment to a patient so as to be X-ray transparent in such area has a conductive plastic electrode conductor with a silver plated and chlorided coating of a thickness between .02 and .08 mil. The assembly also has a lead wire formed from an elongate cable having carbon fibers in a low density polymeric jacket and a conductive plastic connector having an opening for gripping a stud formed by the conductive plastic electrode conductor.
Patent CA-1303625-C (CA)
Title: S,s-di-(tertiary alkyl) thiophosphonate insecticides
Inventor: CHAVDARIAN CHARLES G
IPC: A01N57/20
Filed: 1986-07-28
Granted: 1992-06-16
Abstract: S,S-DI-(TERTIARY ALKYL) THIOPHOSPHONATE INSECTICIDES                         Abstract of the Invention Compounds having the formula   in which R is methyl or ethyl, and R1 and R2 are the same or different tertiary alkyl groups each having from 4 to 6 carbon atoms, are insecticides and nematicides, especially for control of soil insects and nematodes.     Symmetrical compounds (R1 = R2) may be prepared by reaction of an alkali metal mercaptide with an thiophosphonic dihalide.  The alkali metal mercaptide may be prepared by reaction of a tertiary alkyl mercaptan with an alkali metal or alkali metal hydride.
Patent CA-1337408-C (CA)
Title: Soluble phosphorylated glucan
Inventor: DILUZIO NICHOLAS R
IPC: C12P19/04
Filed: 1986-08-13
Granted: 1995-10-24
Abstract: A new class of soluble phosphorylated glucans is described as well as the process for making the same. According to a preferred embodiment, the soluble phosphorylated glucan is derived from the yeast Saccharomyces cerevisiae.  The soluble phosphorylated glucans are useful for prophylactic and therapeutic applications against neoplastic, bacteria, viral, fungal and parasitic diseases.  Additionally, they may be administered as a non-toxic adjuvant, in combination with chemotherapy.  The soluble phosphorylated glucans are also useful for stimulating macrophage cells, either in vivo or in vitro, to produce a cytotoxic/cyctostatic factor effective against cancer cells.
Patent CA-1286095-C (CA)
Inventor: BORCHARDT MICHAEL G
IPC: B65D33/25
Filed: 1986-09-05
Granted: 1991-07-16
Abstract: TRIDENT INTERLOCKING CLOSURE  PROFILE CONFIGURATION            Abstract An interlocking closure fastening device comprising an omega-shaped closure element and a co-acting closure element having a trident profile configuration.  The co-acting closure element has a profile portion comprising three generally parallel arm portions.  The first arm portion terminates in a hook portion, the second arm portion is a generally straight structure having at least one enlarged portion located anterior to its extremity, and the third arm portion terminates in a funnel portion.          The closure device is adapted for use with reclosable plastic freezer storage and cooking bags to provide drip-proof and leak-proof seals.
Patent CA-1289075-C (CA)
Title: Pharmaceutical preparation
Inventor: SHAH NAVNIT H
IPC: A61K9/28
Filed: 1986-11-14
Granted: 1991-09-17
Abstract: ABSTRACT     Pharmaceutical compositions for controlled release of water soluble drugs are disclosed. The compositions comprise a tablet core containing the drug and a water insoluble polymeric matrix surrounded with a rate controlling membrane coating.
Patent CA-1282106-C (CA)
Title: Fiber lens array mounting in reproduction machines
Inventor: PEASE DONALD L
IPC: G03B27/50
Filed: 1987-01-12
Granted: 1991-03-26
Abstract: ABSTRACT OF THE DISCLOSURE           A reproduction machine employing a gradient index fiber lens array having a mounting pin adjacent each end of the array body, a flat metallic array support surface in the machine against which the array abuts when in place in the machine, a mounting hole in the array support surface opposite each of the array mounting pins, the array mounting pins fitting snugly into the array mounting holes on assembly of the array with the support surface, and a pair of strip magnets on the side of the array facing the support surface for attracting and holding the array tightly against the support surface.
Patent CA-1277094-C (CA)
Title: Preparation of polymers of acrylic acid or methacrylic acid
Inventor: DENZINGER WALTER
IPC: C09C3/10
Filed: 1987-01-26
Granted: 1990-11-27
Abstract: Abstract of the Disclosure:  Polymers of acrylic acid or methacrylic acid are prepared by polymerizing acrylic acid and/or methacrylic acid at 50-180°C in a C2-C6-alcohol or mixtures thereof with water having a C2-C?6?-alcohol con-tent of not less than 40% by weight in the presence of free radical polymerization initiators and from 0.01 to 5% by weight, based on the monomers used, of inorganic acids of phosphorus in which the phosphorus has an oxidation number of from 1 to 4, or of water-soluble salts thereof, water-soluble -PO(OH)2-containing compounds and/or water-soluble salts thereof.  The polymers thus prepared are ef-fective milling aids and dispersants for pigments for pro-ducing aqueous pigment slurries for use in paper-coating compositions.
Patent CA-1277193-C (CA)
Title: Throttle body with internally mounted anemometer
Inventor: SMITH DAVID H
IPC: F02M69/46
Filed: 1987-02-25
Granted: 1990-12-04
Abstract: THROTTLE BODY WITH INTERNALLY MOUNTED ANEMOMETER     Abstract of the Invention A  throttle body for  an  internal-combustion engine having a hollow venturi member positioned within the body.  The member has a first portion projecting out of the body at its intake  end,  and  a  second  portion  positioned    generally centrally within the body air duct upstream from a throttle plate.    The  second portion has an  exterior  surface spaced inward  from the body  interior sidewall  to  form  an annular venturi passage therebetween.   The first and second portions define an enclosed air channel.  Circumferentially distributed entry openings in the first portion open exterior of the body duct for entry of air into the channel, and circumferentially distributed exit openings in the second portion communicating with the venturi air passage for the exit of air from the channel.  The channel and the entry and exit openings define a sample flow path of air from a location exterior of the duct to a location adjacent to the venturi passage representative of the air mass flow through the duct.   An anemometer sensor is positioned in the channel in the sample airflow path.   The first portion of the venturi member has a bluff body shape to create a low pressure zone thereabout when air through the body duct is reversed to substantially eliminate airflow through the venturi  member  as  a  result  of engine  backflow pulsations.
Patent CA-1288348-C (CA)
Title: Product and process for promoting the regression of atherosclerosis in animals
Inventor: USHER THOMAS C
IPC: A61K31/721
Filed: 1987-03-10
Granted: 1991-09-03
Abstract: PRODUCT AND PROCESS FOR PROMOTING THE REGRESSION OF ATHEROSCLEROSIS                       IN ANIMALS                        ABSTRACT         Product and process for promoting the regression of atherosclerosis in animals and the diminution of lipid deposits found in the arteries of animals by administration of diethylaminoethyl dextrans.
Patent CA-1299275-C (CA)
Title: Protection cover
Inventor: SUGIYAMA MASAAKI
IPC: H02G3/08
Filed: 1987-06-10
Granted: 1992-04-21
Abstract: ABSTRACT        A protective cover for an automotive part to be stored in an automobile engine compartment.  The cover comprises an upper surface having a generally planar area, and a label applied to the upper surface in the generally planar area.  The generally planar area is recessed in the upper surface a depth substantially equal to the label thickness,  and at least one drain groove means in the unrecessed portion of the upper surface permits water to escape from the generally planar area.
Patent CA-1287184-C (CA)
Title: Printed circuit board testing employing mechanical isolation
Inventor: DRILLER HUBERT
IPC: H05K3/00
Filed: 1987-06-23
Granted: 1991-07-30
Abstract: ABSTRACT OF THE DISCLOSURE           A printed circuit board having thereon a plurality of conductors including connection points is tested for insulation resistance between the conductors by measuring current flowing between one conductor and the other conductors in an arrangement whereby each connection point is connectable to a first potential through a first transistor and to a second potential through a second transistor and a current measuring device.  During testing, only a single connection point of each conductor is connected to the second potential, and all other transistors of that conductor are mechanically isolated from electrical connection with respective connection points.  This prevents leakage current through the transistors associated with the other connection points of a given conductor.
Patent CA-1290920-C (CA)
Title: Production of useful materials including synthetic nepheline from bayer red mud
Inventor: ANDREWS WILLIAM H
IPC: C01F7/06
Filed: 1987-06-25
Granted: 1991-10-22
Abstract: A B S T R A C T            A process for production of useful materials including a product of similar composition to nepheline involves contacting a slurry of red mud with sulphur dioxide to dissolve components of the red mud that are soluble in sulphurous acid, removing residual undissolved solids by filtration, and recovering a filtrate containing soda, alumina and silica values, removing free water from the filtrate to produce a crystallised residue, and calcining the crystallised residue.
Patent CA-1299955-C (CA)
Inventor: PFEFFER GEORGE
IPC: B29C65/18
Filed: 1987-06-26
Granted: 1992-05-05
Abstract: ABSTRACT OF THE DISCLOSURE           A reinforced film of a laminate construction is thermally adhered to an edge of a web of paper stock in preparation for forming a reinforced edge of a file folder. The film has two layers, each having different characteristics, where the bottom layer becomes thermally active as an adhesive at a temperature substantially lower than the activation temperature of the other layer.  The film is applied by directly heating the top layer to a temperature which in turn heats the bottom layer to a temperature where it acts as an adhesive.  The layers can include a printed surface intermediate the film which is visible through the top layer or the layers can include an appropriate pigment to colour code the edge of the folder.  The apparatus can be added to existing file folder machines to apply the film without the need for sophisticated controls to tie the apparatus to the operation of the file folder machine.
Patent CA-1297504-C (CA)
Title: Side swinging, twin-cutter overburden excavator
Inventor: WEISS ABY
IPC: E21C47/02
Filed: 1987-07-24
Granted: 1992-03-17
Abstract: ABSTRACT           The ends of the arms (1) of the gantry of an overburden excavator each have a horizontal bolt (3) for a frame (4) of the drive, on the axis of rotation (5) or drive shaft of which is mounted a rotary cutter (6) in the form of a cutter drum.  The axes of rotation (5) of the rotary cutters (6) are oriented approximately parallel to the plane of symmetry (longitudinal axis) of the conveyor belt (2).  The height of the frame (4) with the rotary cutter (6) can be adjusted in relation to the plane of the roadway by the length adjuster (7) in the form of a hydraulic or pneumatic cylinder, which is located between a bearing lug (8) of the arm (1) and a bearing lug (8a) of the frame (4).  The rotary cutters transport the material via a transverse conveyor (9) to the conveyor belt (2).
Patent CA-1315737-C (CA)
Title: Coin sorting mechanism
Inventor: JONES JOHN E
IPC: G07D9/00
Filed: 1987-09-24
Granted: 1993-04-06
Abstract: ABSTRACT OF THE DISCLOSURE     A coin sorter for sorting coins in terms of their diameter comprising a rotatably mounted coin-carrying disc having a resilient top surface onto which coins may be fed; means for rotating the disc; a guide plate having a central opening and a configured lower surface positioned over and closely adjacent to the disc, and wherein the configured surface includes an inner recess within which coins are free to move radially, and the inner recess extends outwardly from the central opening, the guide plate forming a referencing region for receiving the coins from the inner recess and pressing them against the resilient top surface of the coin-carrying disk while engaging the radially outer edges of the coins of all denominations and moving the coins radially inwardly as the coins are advanced circumferentially so that the radially outer edges of the coins of all denominations are positioned at a common radial location, whereby the radially inner edges of the coins are positioned at different radial locations determined by the diameters of the respective coins, and sorting means disposed around the outer periphery of the guide plate for sorting coins of different denominations according to the different radial locations of the radially inner edges of the coins of different denominations, the sorting means ejecting coins of a common denomination at a common circumferential location on the periphery of the guide plate.
Patent CA-1305663-C (CA)
Title: Disinfecting composition for soft contact lenses containing a stabilized hydrogen peroxide solution
Inventor: TSAO FU-PAO
IPC: A01N59/00
Filed: 1987-10-09
Granted: 1992-07-28
Abstract: V-16127/+/CGV 1225 Disinfecting Composition For Soft Contact Lenses Containing A Stabilized Hydrogen Peroxide Solution Abstract of the Disclosure The present invention relates to a stabilized aqueous hydrogen peroxide solution for use in the disinfection of a soft contact lens having a hydrogen peroxide content from about 0.5 to about 6 % by weight hydrogen peroxide wherein the stabilized solution contains from about 0.003 to about 0.03 % by weight of diethylene triamine penta(methylenephosphonic acid) of the formula   or a physiologically compatible salt thereof, and to an improved method of disinfecting a soft contact lens with such solution.
Patent CA-1277629-C (CA)
Title: Power-operated lift and presenting mechanism
Inventor: SMILLIE CHARLES M III
IPC: B62B5/00
Filed: 1987-12-23
Granted: 1990-12-11
Abstract: POWER-OPERATED LIFT AND PRESENTING MECHANISM     ABSTRACT OF THE DISCLOSURE     A portable power-operated lift and presenting mechanism has a base that is placed on the floor of an automobile trunk. A carriage moves between an elevated position and a lowered, transport position when a scissors jack connecting the carriage to the base respectively expands vertically and contracts vertically, expanding horizontally. The scissors jack is selectively power-operated, by a reversible electrical motor, to expand and contract vertically. The carriage has drawer slide assemblies on which is mounted a platform capable of supporting a heavy and bulky article. The platform is movable by the drawer slide assemblies, when the carriage is in an elevated position, between a retracted position in which the platform is generally over the base and within the trunk, and a presenting position in which the platform extends out from over the base, generally out of the trunk.
Patent CA-1301783-C (CA)
Title: Weight sensing apparatus
Inventor: BOLLAND GEORGE B
IPC: G01L1/22
Filed: 1988-01-20
Granted: 1992-05-26
Abstract: ABSTRACT A weight sensing apparatus comprising first and second support means, a load carrying member supported on said first and second support means, a sensing portion of the load carrying member which terminates inwardly of at least one end of the load carrying member and being disposed between said support means and therebeing at least one further portion of the load carrying member which extends away from said sensing portion beyond an adjacent one of said first and second support means towards an end of the load carrying member, a load receiving region provided on said sensing portion, at least one strain gauge positioned on the sensing portion to sense the strain in said member to provide a signal indicative of load applied to the load receiving region, said at least one strain gauge being positioned between the support means at a distance from at least one of the first support means, the second support means and load receiving means, which is not greater than a distance d max., where d max. is the maximum thickness of the member between the first and second support means in the direction in which the load is to be applied.
Patent CA-1295106-C (CA)
Title: Three-dimensional structures of interlocked strands
Inventor: COLE PAUL M
IPC: D04C1/06
Filed: 1988-02-09
Granted: 1992-02-04
Abstract: TITLE    Three-Dimensional Structures of Interlocked Strands ABSTRACT OF THE DISCLOSURE     A three-dimensional structure of interlocked strands is formed of axial and intertwining yarns which spiral in a path through the structure. Each strand has a distinct zone of occupancy in every cross section of the structure and does not depart from that zone.
Patent CA-1294574-C (CA)
Title: Heterocyclic nitrogen removal from petroleum oils
Inventor: MADGAVKAR AJAY M
IPC: C10G67/04
Filed: 1988-05-06
Granted: 1992-01-21
Abstract: A B S T R A C T          HETEROCYCLIC NITROGEN REMOVAL FROM PETROLEUM OILS      Process for  the removal  of heterocyclic  nitrogen  compounds from a petroleum oil, which comprises treating a petroleum oil rich in heterocyclic nitrogen  compounds in an  extraction zone with  an extractant comprising an aqueous solution  of a carboxylic acid  to yield a first extraction stream  comprising a petroleum oil with  a lean content  of  heterocyclic  nitrogen  compounds  and  a  second extraction  stream  comprising  an  aqueous  phase  containing  the carboxylic acid  and having  an increased  content of  heterocyclic nitrogen compounds,  and  subjecting at  least  part of  the  first extraction stream to a catalytic hydrotreatment in the presence  of hydrogen and a hydrotreatment catalyst.
Patent CA-1322121-C (CA)
Title: Strip of material and its manufacturing method
Inventor: HAELKER HELMUT
IPC: D21F1/00
Filed: 1988-05-11
Granted: 1993-09-14
Abstract: A B S T R A C T           A strip of material, especially for papermaking machine cloth covers for the pressing zone, as a filter or as pressing pad for the particle-board presses, comprises individual, longitudinal threads and orthogonally thereto individual transverse threads.  In order to endow the strip with a structure such that on one hand it can be manufactured rapidly and economically, and on the other hand to allow wide latitude in shaping its properties, the threads (1) extending in one direction always consist each of a core filament (2) and of at least one loop thread (3) enclosing this filament.
Patent CA-1320525-C (CA)
Inventor: BURCH LYNDON W
IPC: H01H5/22
Filed: 1988-09-07
Granted: 1993-07-20
Abstract: SNAP ACTION DEVICES AND METHODS           AND APPARATUS FOR MAKING SAME            Abstract of the, Disclosure An inherently mechanically bistable self-supporting blade element for actuating snap-action switches, circuit breakers and devices, and methods and apparatus for producing such elements.  The elements are formed from initially flat, unstressed spring material, and comprise two outer legs and a bridging portion integrally connecting them.  By progressive coplanar relative displacement of the outer legs the bridging portion is deflected normally to the nominal plane of the element.  Detection of this deflection enables attachment together of the outer legs to form a calibrated, inherently bistable blade element.
Patent CA-1334804-C (CA)
Inventor: GIBSON JOSEPH W JR
IPC: G03F7/38
Filed: 1988-09-13
Granted: 1995-03-21
Abstract: A process for detackifying an imagewise exposed and solvent-developed photopolymeric flexographic relief pprinting plate prepared from a photosensitive elastomeric composition containing an ethylenically unsaturated photopolymerizable monomer or oligomer having at least one terminal ethylenically unsaturated group; a photoinitiator or photoinitiator system; and a solvent-soluble elastomeric binder comprising polymerized conjugated diene monomers.  The process comprises the steps of: a)   drying the plate after development, and b)   exposing the printing surface to radiation with wavelengths in the range of 200 to 300 nm. The improvement comprises: applying an aprotic organic solvent to the surface of the plate, after step a) and before step b) above.
Patent CA-1332945-C (CA)
Title: N-phenyltetrahydrophthalimide compounds and their use as herbicides
Inventor: RUEB LOTHAR
IPC: C07D409/12
Filed: 1988-10-12
Granted: 1994-11-08
Abstract: N-Phenyltetrahydrophthalimide compounds of the formula I       where R1 is hydrogen, fluorine or chlorine, R2 is chlorine or bromine, R3 is hydrogen or C1-C3-alkyl, and R4 is a 5- or 6-membered, saturated or unsaturated heterocyclic compound containing an oxygen or a sulfur atom and which is unsubstituted or substituted by a maximum of three C1-C3-alkyl groups, methods of manufacturing these compounds, and their use as herbicides.