baber/WOPTO huggingface dataset:
Patent CA-2004069-C (CA)
Inventor: ETHERINGTON TERENCE
IPC: C08G85/00
Filed: 1989-11-28
Granted: 1998-06-16
Abstract: Polymeric compounds comprise groups of the formula (see fig. I) attached to carbon atoms of a polymer containing hydroxyl and optionally epoxide groups wherein X is (see fig. II), (see fig. III), (see fig. IV) or (see fig. V) The compounds are produced by reacting a starting polymer, which contains hydroxy groups and optionally epoxide groups with a reagent containing a cyclic anhydride group and a further functional group capable of reacting with the hydroxyl (and/or epoxide) groups preferentially to the anhydride group.  The compounds are useful as bakeable support resins for radiation sensitive compounds in the production of printing plates.
Patent CA-2007180-C (CA)
Title: Method of forming electrically conducting layer
Inventor: FUJII RYUICHI
IPC: H05K1/00
Filed: 1990-01-04
Granted: 1993-08-24
Abstract: METHOD OF FORMING ELECTRICALLY CONDUCTING LAYER         Abstract A conducting layer such as an additional wiring pattern or an electromagnetic insulation layer is formed on a conducting surface such as of a printed circuit board with an insulating layer being interposed therebetween, by a method which includes the steps of:          (a) providing a liquid thermosetting composition containing an epoxy resin, a curing agent, a polymerizable compound having at least two acrylate or methacrylate groups and a photopolymerization initiator;          (b) applying the composition to the conducting surface to form a coated layer;          (c) irradiating actinic light on the coated layer to polymerize the polymerizable compound and to obtain a solid, thermosetting layer, (d) heating the thermosetting layer to cure the epoxy resin and to form the insulating layer; and (e) forming an electrically conducting layer on the cured resin layer.  Steps (b) and (c) are repeated until the solid thermosetting layer has a desired thickness.  Step (d) may be performed before or after step (e).
Patent CA-2007812-C (CA)
Title: Acidic disinfectant all-purpose liquid cleaning composition
Inventor: COOK WILLIAM J
IPC: C11D3/20
Filed: 1990-01-16
Granted: 1995-04-18
Abstract: A stable, acidic disinfectant all-purpose liquid cleaning composition, free of detergent builders and substantially free of organic solvents, comprising a mixture of acid stable water-soluble and water-dispersible nonionic surfactants, organic acid and a water soluble, acid stable disinfectant compound in an aqueous medium.  The composition spreads quickly and provides good detergency with efficient penetration of soils while maintaining a high level of disinfectant activity.  A soil releasing agent may also be included in the composition in order to provide easier cleaning of the treated surface during subsequent cleaning operations.  The composition is particularly effective for cleaning soap scum and mineral deposits from hard surfaces such as grout, ceramic tile, stainless steel and glass.
Patent CA-2007944-C (CA)
Title: Paper handling apparatus
Inventor: HOSOI MASATOSHI
IPC: B65H31/38
Filed: 1990-01-17
Granted: 1994-05-31
Abstract: ABSTRACT OF THE DISCLOSURE A paper handling apparatus having a plurality of bins, a paper positioning device for positioning paper sheets which are sequentially distributed to the bins, and a stapler for stapling the paper sheets stacked on the bins. A controller causes the paper positioning device to position the paper sheets even after the latter has been stapled by the stapler.
Patent CA-2009157-C (CA)
Inventor: MERTENS TIMOTHY A
IPC: C09D7/45
Filed: 1990-02-02
Granted: 2001-01-16
Abstract: Abstract of the Disclosure A stack of aligned sheets, each of which sheets includes a backing, a coating of pressure sensitive adhesive on a lower surface of the backing by which the sheet is adhered to the sheet beneath it in the stack, which coating extends along and within at least 12.5 mm of all of the edges of the backing, release means providing a first adhesion zone between adjacent sheets in the stack and adjacent one of the edges of the sheet for providing a sufficiently low release force between the adhesive coating and the upper surface of the adjacent sheet in the stack to afford, when the sheet is the uppermost sheet in the stack, easy initiation of peeling of the sheet from the adjacent sheet in the stack, and attachment means providing a second adhesion zone between adjacent sheets in the stack for providing a sufficiently high release force that is higher than said low release force in the first adhesion zone to firmly adhere adjacent sheets in the stack together and thereby hold the stack of sheets together during handling, while affording continued peeling away of the uppermost sheet in the stack after initiating of such peeling along the first adhesion zone.
Patent CA-2009810-C (CA)
Title: Retrievable bridge plug and packer
Inventor: MANKE KEVIN R
IPC: E21B33/134
Filed: 1990-02-12
Granted: 1994-06-21
Abstract: A retrievable bridge plug and packer apparatus.  The tool includes a packer settable by right-hand rotation and vertical manipulation of the tool string and a bridge plug also settable by right-hand rotation and vertical manipula-tion of the tool string.  A disabling tool is provided to disable the packer during setting of the bridge plug so that the packer is not prematurely set.  After setting of the bridge plug below the formation, the packer and disabling tool may be disengaged from the bridge plug.  At this point, the disabling tool is disengaged so that the packer may be set above the formation.  The packer is unset by pulling on the tool string, and the packer and disabling tool may be reconnected to the bridge plug.  Again lifting on the tool string unsets the bridge plug so that the apparatus may be retrieved or reused.  A method of treating a well formation is also disclosed.
Patent CA-2012282-C (CA)
Title: Insulated electric wire and process for producing the same
Inventor: MORI AKINORI
IPC: H01B11/18
Filed: 1990-03-15
Granted: 1998-05-05
Abstract: A process for producing an insulated electric wire, comprising the steps of coating around a conductor an energy radiation curable resin composition having heat expansible microspheres  incorporated  therein,  and  curing  the  energy radiation  curable  resin  composition  thus  coated  on  the conductor by exposure to an energy radiation. The process also comprises the step of heating the energy radiation curable resin composition to expand the heat expansible microspheres in the energy radiation curable resin composition, thereby forming a high-porosity insulation layer on the conductor.  An insulated  electric wire  comprises  a  conductor;  an energy radiation curable resin composition layer having microspheres incorporated therein and   surrounding the  conductor,  the outside diameter of the microspheres in the energy radiation curable resin composition layer being maximum in the vicinity of the conductor and decreasing gradually toward the periphery of the energy radiation curable resin composition layer.
Patent CA-2015090-C (CA)
Title: Method and apparatus for detecting flame
Inventor: DAVALL PETER W N
IPC: F23N5/08
Filed: 1990-04-20
Granted: 1994-05-10
Abstract: METHOD AND APPARATUS FOR DETECTING FLAME                 ABSTRACT OF THE DISCLOSURE           A method of detecting flame within a region where flame is expected.  Radiation emissions from the region are measured within selected portions of the visible and infra-red frequency bands.    Spectral  characteristics  of  the  two measurements, including their auto spectra, coherency and transfer function, are derived.  The derived spectral characteristics are compared with prestored spectral signatures representative of the spectral characteristics of radiation emitted from the region within the selected portions of the visible and infra-red frequency bands while known flame conditions prevail within the region - thereby estimating the deviation of the derived spectral characteristics from the prestored spectral signatures. The deviations aforesaid are compared with predetermined threshold alarm values to assess the presence or absence of flame.
Patent CA-2017029-C (CA)
Title: Composition
Inventor: BROBYN SUSAN ELIZABETH
IPC: A61P43/00
Filed: 1990-05-17
Granted: 1999-09-28
Abstract: Aerosol compositions for topical application, conferring a cooling effect on the body and suitable for use in the alleviation of pain, such as muscular or rheumatic pain, which compositions do not contain environmentally unacceptable chlorofluorocarbons but satisfy safety guidelines on flammability, and comprise an organic substance, other than a chlorofluorocarbon, having a boiling point within the range of from 10 to 40°C and an organic substance, other than a chlorofluorocarbon, having a boiling point within the range of from -45 to -10°C, in a ratio of from 3 to 7 parts by weight of the higher boiling component (serving primarily as a coolant) per part by weight of the lower boiling component (serving primarily as a propellant).
Patent CA-2028242-C (CA)
Title: Superconducting magnetic shield and process for preparing the same
Inventor: ITOH IKUO
IPC: H05K9/00
Filed: 1990-10-22
Granted: 1997-08-19
Abstract: The present invention is characterized by a superconducting magnetic shield comprising a seamless, bottomless hollow body or a seamless hollow body having a bottom, said hollow body having a wall comprised of, in the thickness direction thereof, at least one laminate structure comprising a unit of two layers of an Nb-Ti-base alloy layer and a metal layer having a high conductivity or three layers of the above two layers and a barrier layer sandwiched therebetween; a process for preparing a magnetic shield which comprises subjecting the magnetic shielding material to a heat treatment after deep drawing; and a process for preparing the magnetic shielding material.
Patent CA-2028656-C (CA)
Title: Clip for mounting objects on a wall stud
Inventor: RINDERER ERIC R
IPC: H05K7/14
Filed: 1990-10-26
Granted: 1993-04-20
Abstract: CLIP FOR MOUNTING OBJECTS ON A WALL STUD           Abstract of the Disclosure A clip for mounting  an object  such as  an electrical box on a metal stud of generally channel shape having a web and a pair of generally parallel flanges.  The clip includes a first clip part engageable with the stud for securement of the clip in the stud.  The first part has a relatively flat leg.  A second clip part holds the object and has a relatively flat leg extending in generally parallel face-to-face relation with the leg of the first clip part.  The leg of the second clip part is slidable relative to the leg of the first clip part lengthwise of the leg of the first clip part for adjusting the position of the object being held by the second clip part relative to the stud.  Flanges define a guideway for maintaining the leg of the second clip part in longitudinal alignment with the leg of the first clip part as the leg of the second clip part is slidably adjusted relative to the leg of the first clip part.  Detents on the leg of one of the clip parts are receivable in notches on the leg of the other clip part for locking the leg of the second clip part in selected positions of lengthwise adjustment relative to the leg of the first clip part.
Patent CA-2031770-C (CA)
Inventor: SCHWELM HANS
IPC: F15B13/043
Filed: 1990-12-07
Granted: 2001-05-01
Abstract: The main control piston (8) is controlled hydraulically by pilot control slide valves, operated in each case via two control magnets (4, 6) with force build-up proportional to the control current. In the case of failure of the electrical activation, the valve is always positioned in the centre position by pressure centring and in the case of failure of the pilot control pressure it is positioned in the centre position by spring centring.
Patent CA-2037264-C (CA)
Title: Process for the production of propylene polymer films and laminates and products thus obtained
Inventor: LESCA GIUSEPPE
IPC: C08L23/00
Filed: 1991-02-27
Granted: 2000-07-18
Abstract: Disclosed are films and laminates which are prepared by known filming or calendering processes using heterophasic propylene polymer compositions comprising:      A) 10-60 parts by weight of homopolymer polypropylene having an isotactic index greater than 90, or crystalline copolymer of propylene with ethylene and/or other alpha-olefins containing more than 85% by weight of propylene and having an isotactic index greater than 85;      B) 10-40 parts by weight of a copolymer containing prevailingly ethylene, which is insoluble in xylene at room temperature:      C) 30-60 parts by weight of an amorphous ethylene-propylene copolymer, soluble in xylene at room temperature and containing 40-70% by weight of ethylene; said propylene polymer compositions having a ratio between the intrinsic viscosities, in tetrahydronaphthalene at 135°C, of the portion soluble in xylene and of the portion insoluble in xylene at room temperature of from 0.8 to 1.2.
Patent CA-2042251-C (CA)
Title: Electrodeless hid lamp with microwave power coupler
Inventor: FOHL TIMOTHY
IPC: H05B41/24
Filed: 1991-05-09
Granted: 2002-02-05
Abstract: An electrodeless lamp may be formed with a capsule having a radiant energy transmissive material defining an approximately cylindrical enclosed volume having an external length less than 20.0 millimeters, and an outer diameter less than 8.0 millimeters. The enclosed volume is filled with a lamp fill excitable by a high frequency electromagnetic field to produce radiant energy. The small size capsule produces a particularly efficient, orientation tolerant arc discharge. The arc is then highly stable as to position, yielding a good optical source to design for. The temperature gradient is small, thereby yielding little thermal strew on the capsule. An electrodeless HID headlamp system may be formed with the efficient capsule from a radio frequency source operating from a the power supply of a typical automobile. The headlamp system includes a high frequency power source, a transmission line, a coupler, an excitable lamp fill captured in a lamp capsule, a reflector and a lens.
Patent CA-2042477-C (CA)
Title: An electroconductive and astringent film and film-forming composition for application to skin
Inventor: SCHEPS MILTON HAROLD
IPC: C08K5/42
Filed: 1991-05-13
Granted: 2001-08-28
Abstract: A composition suitable for application to skin to provide thereon a film with electroconductive and astringent properties, comprises a mixture of a film-forming amount of a film-forming polymer, an electroconductive amount of an ionic astringent compound homogeneously dispersed throughout the mixture and a carries therefor whereby on application to the skin, a film is formed containing said compound substantially homogeneously dispersed throughout the film.
Patent CA-2046465-C (CA)
Title: Multi-stage centrifugal pump
Inventor: THOMPSON PETER
IPC: F04D29/16
Filed: 1991-07-08
Granted: 1998-09-22
Abstract: A multi-stage centrifugal pump with an axially split casing (10) and a number of impellers (14) carried by a drive shaft (12) has inter-stage bushings (24) and rings (22) for sealing each side of each impeller.  Each bushing (24)  or  ring  (22)  is  conventionally  prevented  from rotating by a radial pin protruding from the lower half of the casing (10) into an axial slot in the periphery of the bushing or ring.   The pin is necessarily small and is liable to shear, difficult to engage in the slot and, in cases where the bushing (24) or ring (22) is diametrically split, does not allow rotation of the lower half for its removal without lifting the shaft  (12).   To avoid all these disadvantages, the exposed end (37) of a tangential pin (32) fitted in the casing (10) is flush with the join face (28) of the casing and abuts against a shoulder (44) formed by a recess (38) in the periphery of the bushing (24) or ring (22).  This pin (32) can be larger than the known radial pin and is subjected to compression,  not shear.
Patent CA-2054051-C (CA)
Inventor: RIPPEL WALLY E
IPC: H02J3/00
Filed: 1991-10-23
Granted: 1994-06-14
Abstract: ABSTRACT OF THE DISCLOSURE         A drive and recharge system is disclosed that includes a bidirectional dc power source, two voltage-fed inverters, two induction motors, and a control unit.  In the drive mode, power is bidirectionally connected between the dc power source and the motors.  In the recharge mode, single-phase power applied to the neutral ports of the two motors is converted with unity power factor to return energy to the dc power source.   An alternate scheme is also presented which uses a single motor having two sets of windings.
Patent CA-2054100-C (CA)
Inventor: MALLARY MICHAEL L
IPC: G11B5/127
Filed: 1991-10-24
Granted: 1998-09-29
Abstract: A thin film magnetic transducer formed in multiple layers and comprising a yoke having a plurality of arms, at least one of which has segments lying in separate layers and connected through a transition layer, and a multiturn coil intertwined with the yoke to provide at least two flux interactions between the yoke and coil.  The transducer is constructed to enhance flux conduction by rotation and minimize flux conduction by wall motion in the yoke.
Patent CA-2061898-C (CA)
Inventor: CONSTEN FRITZ
IPC: H01J61/30
Filed: 1992-02-26
Granted: 2000-10-17
Abstract: To suppress undesired light peaks which arise at or close to the axis of symmetry of a single-ended electric discharge lamp, and projected away from the base of the lamp, a surface portion of the lamp adjacent the cap thereof, and near an exhaust tip is frosted or matted. Thus, lens effects due to accumulated glass adjacent the exhaust tip, and the curved dome-shaped portion at the end of the lamp, will no longer cause bundling of light rays which will be projected directly and provide axial light peaks or rings. Due to the matting or frosting, the transparency will be diffused and undesired light maxima due to bundled light rays are eliminated.
Patent CA-2062976-C (CA)
Title: Use of sebacic acid and derivatives thereof in enteral and parenteral nutrition and pharmaceutical compositions containing said compounds
Inventor: MINGRONE GELTRUDE
IPC: A61K31/20
Filed: 1990-07-30
Granted: 2000-03-21
Abstract: Sebacic acid and the pharmacologically acceptable derivatives thereof, such as the novel compounds sodium sebacate and potassium sebacate, the sebacic acid triglyceride and the sodium and potassium salts of the triglyceride are useful for manufacturing pharmaceutical compositions suitable for the enteral and parenteral nutrition.
Patent CA-2063679-C (CA)
Inventor: KREIJGER PIETER JOB
IPC: B21B45/08
Filed: 1992-03-20
Granted: 1998-02-17
Abstract: In the manufacture of hot-rolled steel strip, a continuous casting  machine casts a slab and a roll stand for reducing the thickness of the slab to make strip is incorporated in line with the continuous casting machine. Advantages of simplicity and rolling quality are obtained when the roll stand is a two-high roll stand having a single pair of rolls.  Where there are reheating means for reheating of the strip after its rolling in the two-high roll-stand, the two-high roll stand is the sole means for reducing the thickness of the slab after full solidification of the slab and prior to entry of the strip into said reheating means.
Patent CA-2070608-C (CA)
Inventor: CHAUBET OLIVIER
IPC: D01F6/60
Filed: 1992-06-05
Granted: 1996-04-30
Abstract: An improved output efficient polyamide-based preoriented yarn spun at a speed of at least 4000 m/min and obtained by introducing, before the spinning, of a quantity of 0.05 to 1% by weight of pyrogenic silica of particle size of between 5 and 15 nm into the molten polymer in the form of dispersion in a master mix of the same polyamide as that intended to be processed, the filaments after spinning being then cooled by means of a gas stream at room temperature and then sized and wound at a speed of between 4200 and 5800 m/min. The preoriented yarns thus prepared exhibit a delay in the orientation and are obtained with a gain in output efficiency of at least 10%, generally at least 15%.
Patent CA-2070696-C (CA)
Inventor: HUTCHISON WAYNE R
IPC: B62D3/12
Filed: 1992-06-08
Granted: 1994-10-04
Abstract: A rack and pinion steering mechanism for use with a vehicle having a frame, an operator station and steerable ground engaging wheels.  The mechanism provides a steering wheel, a steering column, a pinion gear coupled with the steering column, and a rack gear plate member having an opening for receiving the pinion gear.  The opening has a laterally extending toothed portion engagable with the pinion gear, and has laterally outward end portions engagable with the pinion gear for limiting the lateral shifting of the rack gear plate member.  A support plate means is coupled with the frame and is abuttable with the rack gear plate member for securing the rack gear plate member between the support plate and frame for maintaining the rack gear teeth in operative engagement with the pinion gear.
Patent CA-2074828-C (CA)
Title: Gold carboxylates and process for preparing the same
Inventor: NAPPIER THOMAS E
IPC: C07C53/126
Filed: 1991-11-22
Granted: 2002-10-01
Abstract: Gold carboxylates and a process for preparing gold salts of organic carboxylic acids are described. The gold carboxylates are represented by formula (I), in which R represents hydrogen or an organic group of valence y and x, y and z each represent a positive integer such that x = y.z/3. The process comprises reacting an alkali or alkaline earth metal salt of an organic carboxylic acid with a gold salt in an organic liquid which at least partially dissolves the alkali and/or alkaline earth metal salt, the gold salt, and the desired gold carboxylate product, but is not a solvent for the salt formed between the alkali or alkaline earth metal and the anion of the gold salt.
Patent CA-2077494-C (CA)
Inventor: IWANIUK DAVID A
IPC: B23Q39/04
Filed: 1992-09-03
Granted: 1996-05-21
Abstract: Apparatus  for  progressive  blind  broaching  workpieces includes a machine having a table mounted for rotation about a central axis, and a ram reciprocable toward and away from the table.   Work holders on the table mount the workpieces in circumferentially spaced relation around the central axis of rotation of the table.  Broaching tools are mounted on a pallet which is releasably secured to the ram in proper position for broaching.  A pallet load stand is positioned at one side of the machine and a pallet unload stand is positioned at the opposite side of the machine.  The ram is operated by a single power cylinder.
Patent CA-2079287-C (CA)
Inventor: SESHADRI NAMBIRAJAN
IPC: H04B7/26
Filed: 1992-09-28
Granted: 1996-11-26
Abstract: Information is transmitted in digital form over fading channels using DPSK coded modulation incorporating multi-level coding in order to provide unequal error protection for different classes of data such as generated by CELP or other speech encoders.
Patent CA-2083125-C (CA)
Title: Optical device for measuring ground current of a metal casing
Inventor: DUPRAZ JEAN-PIERRE
IPC: G01R15/24
Filed: 1992-11-17
Granted: 1997-01-28
Abstract: An optical transformer designed to equip a grounded metal-clad installation, wherein the transformer includes a disk which is disposed transversely to the axis of the cladding and which is provided with openings via which the conductors pass, optical fibers being disposed at the periphery of said openings and being connected to an associated optical interface placed outside the cladding.
Patent CA-2084957-C (CA)
Inventor: BOLTON JEFFREY S
IPC: C07C209/24
Filed: 1992-12-09
Granted: 2003-06-17
Abstract: The present invention encompasses an improved process for preparing polymethylene polyphenyl polyisocyanate comprising reacting phosgene with polymethylene polyphenyl polyamine, the improvement wherein the polymethylene polyphenyl polyamine is acidified prior to phosgenation.