baber/WOPTO huggingface dataset:
Patent CA-1312022-C (CA)
Inventor: CHANEL ARTHUR L
IPC: B65D77/20
Filed: 1987-06-25
Granted: 1992-12-29
Abstract: The bottom (1) and the cover (2) are made from a rigid composite material constituted by a sheet of PVC coated with a layer of polyethylene on which is applied a film of polyethylene of peelable quality. The bottom (1) has cavities (4). Peripheral flanges (3, 3') includes ears (6, 6') and are welded along a strip (7) having weakened regions (8). The cover is peelable.
Patent CA-1290283-C (CA)
Title: Lumber sorting apparatus
Inventor: DOHERTY RALPH D
IPC: B07C5/14
Filed: 1987-08-10
Granted: 1991-10-08
Abstract: Abstract of the Disclosure A lumber sorting apparatus wherein a bin collects graded lumber.  Flexible straps across the bottom are elongated to expand the lumber holding capacity.  One end of the strap has a releasable latch mechanism and latching of the straps (after dumping the lumber) is provided by a rigid pivotal arm that receives the latch mechanism in a rewinding operation and pivots the latch member into place for relatching.  The latch mechanism consists of a spool that fits between sleeve portions through which a pin is controllably inserted and withdrawn by a manually operated air cylinder.
Patent CA-1286407-C (CA)
Title: Optical character recognition by forming and detecting matrices of geo features
Inventor: PASTOR JOSE
IPC: G06V10/44
Filed: 1987-09-29
Granted: 1991-07-16
Abstract: OPTICAL CHARACTER RECOGNITION BY FORMING AND DETECTING MATRICES OF GEO FEATURES     ABSTRACT OF THE DISCLOSURE         An alphanumeric character is recognized by optically scanning that character, detecting the occurrence of predetermined geographical features in the scanned image, comparing the detected geographical features to a store of particular geographical features which identify respective alphanumeric characters, and identifying the scanned image as the alphanumeric character having those geographical features to which the detected geographical features favorably compare.  The aforementioned geographical features comprise lagoons (formed as enclosed areas) and bays (formed as open areas).  A matrix representing the juxtapositions of the detected geographical features is generated and compared with stored predetermined matrices which, in turn, represent predetermined characters.
Patent CA-1287456-C (CA)
Title: Debris pan for rotary brush sweeper
Inventor: BERFIELD ROBERT C
IPC: E01H1/04
Filed: 1987-10-15
Granted: 1991-08-13
Abstract: ABSTRACT OF THE DISCLOSURE          A rotary brush sweeper includes a debris pan with an inlet portion that glides on a surface being cleaned.  The debris pan automatically disengages from the sweeper upon being engaged by an obstacle in the path of the sweeper.  The debris pan is configured with an inlet portion or scoop for directing debris pro-pelled by a rotary brush into the debris pan.  The scoop portion has a first upwardly and rearwardly in-clined surface and a second surface beneath the first surface and facing downwardly.  A low friction material covers the first and second surfaces of the scoop to facilitate collection of debris into the debris pan. The covering may include an integrally formed tip por-tion of abrasion-resistant material, and is preferably configured in cooperation with the scoop to mechanical-ly grip onto the scoop without the need for screws or adhesives.
Patent CA-1313115-C (CA)
Title: Heavy duty radial tire
Inventor: SATO KIYOSHI
IPC: B60C3/04
Filed: 1987-11-06
Granted: 1993-01-26
Abstract: HEAVY DUTY RADIAL TIRE     Abstract of the Disclosure A heavy duty radial tire includes at least one radial carcass extending from one bead portion to the other bead portion and using inextensible cords and a belt arranged outwardly of the radial carcass for reinforcing a tread of the tire.  The tire comprises, during expanding of the tire from 5% to 100% of a normal inner pressure, a first profile portion expanding radially outwardly in a tread zone, a second profile portion depressing axially inwardly of the tire in a radially outer zone of a sidewall from one end of said tread to a tire maximum width position when filled with the normal inner pressure, and a third profile portion expanding axially outwardly of the tire in a radially inner zone of the sidewall from the tire maximum width position when filled with the normal inner pressure to a parting point of the sidewall from the rim, thereby properly distributing strains occurring in the tire in filling with the normal inner pressure.  Moreover, a carcass profile in the radial cross-sections of the tire filled with an inner pressure 5% of the normal inner pressure and under no load condition is a composite curve smoothly passing through points B, A and D, where the point A is an intersection of a carcass line C of the carcass profile and a tangent mm' in a radial direction to the carcass line at a carcass line maximum width position and the points B and C are intersections of the carcass line C and a perpendicular pp' to a bead based line RL, the perpendicular pp' spaced apart from an equatorial plane M of the tire by a distance of 0.45 times a rim width, and the carcass profile fulfills three relations relative to a maximum distance H of the carcass line C from the bead base line RL with respect to maximum distance deviated from an equilibrium configuration curve N.
Patent CA-1304945-C (CA)
Title: Method and tank for storing a submarine optical cable
Inventor: KODAKA KAZUYUKI
IPC: G02B6/44
Filed: 1987-12-30
Granted: 1992-07-14
Abstract: METHOD AND TANK FOR STORING A SUBMARINE OPTICAL CABLE       ABSTRACT OF THE DISCLOSURE A submarine optical cable provided with optical repeaters and the like is spirally wound as a coil in a cable tank having a wall which defines at least a part of a cable storing space in which the cable is accommo-dated and is parallel to an axis of the coiled optical cable.  A metal plate is provided along and covering an entire peripheral region of the wall to counterbalance induced voltage generated in the coiled optical cable.
Patent CA-1311344-C (CA)
Title: Dispositif de regulation du fonctionnement d'une installation de traitements chimiques pour ameliorer le rendement par attenuation des variances des parametres de reglage
Inventor: MAURICE JACQUES
IPC: C01B17/04
Filed: 1987-12-30
Granted: 1992-12-15
Abstract: Le dispositif de régulation du fonctionnement d'une installation de traitements chimiques, par atténuation des variances des paramètres de réglage, comporte des moyens de calculs reliés à des moyens de mesure de débits de composés en entrée de l'installation et à des moyens de mesure de teneurs de composés résiduels d'entrée, encore présents à la sortie de l'installation. Les moyens de calculs effectuent des traitements de cohérence des valeurs mesurées pour atténuer les variances de ces valeurs. Les moyens de mesure fournissent un signal de consigne appliqué à des moyens de régulation de l'installation. Le dispositif s'applique à la régulation du fonctionnement d'installations de traitements chimiques et notamment d'installations de fabrication de soufre.
Patent CA-1332143-C (CA)
Inventor: NATARAJAN MANI
IPC: C21D1/667
Filed: 1988-01-12
Granted: 1994-09-27
Abstract: METHOD AND APPARATUS FOR JET  GAS IMPINGEMENT QUENCHING         Abstract Method and apparatus is provided for quenching a metal workpiece by an inert gas at ambient temperature.  Jet streams of gas coolant at high velocity and flow rates are directed in a balanced arrangement against opposing workpiece sides and the jets are correlated to the thickness of the workpiece sections to achieve uniform cooling rates with minimal workpiece distor-tion.  A flow straightening grid in combination with a variable sized aperture plate achieves the desired jet streams in an adjustable plenum arrangement which directs the streams against the top and bottom surfaces of the workpiece.
Patent CA-1327234-C (CA)
Title: Skin temperature measuring apparatus for diagnosing disturbance of peripheral circulation
Inventor: TANAKA ISAMU
IPC: A61B5/01
Filed: 1988-03-07
Granted: 1994-02-22
Abstract: SKIN TEMPERATURE MEASURING APPARATUS FOR DIAGNOSING     DISTURBANCE OF PERIPHERAL CIRCULATION               ABSTRACT OF THE DISCLOSURE    A skin temperature measuring apparatus for diagnosing disturbance of peripheral circulation which has a cold air box with thermo regulator of low temperature, a radiation thermometer disposed in the cold air box with thermo regulator, the cold air box with thermo regulator having a test section inserting unit, a positioning unit for positioning the inserted test section within the visual field of the radiation thermometer, and a fan for blowing cold air to the positioned test section, thereby simply and accurately measuring the skin temperature without person's pains to be measured.
Patent CA-1319993-C (CA)
Title: Shaft torsional vibration monitor for a multi-mass rotary shaft system
Inventor: YAGI YASUOMI
IPC: G01H17/00
Filed: 1988-03-25
Granted: 1993-07-06
Abstract: Abstract:     A shaft torsional vibration monitor for the shaft system of a poly-phase generator and a prime mover turbine connected thereto comprises an electrical torque detector for detecting electromagnetic torque applied to the generator rotor, and a memory unit capable of storing a plurality of sets of torque variation data due to system disturbances that each have an initial torque variation rate more than a predetermined amount.          A first processor fetches the sets of torque variation data one by one from the memory unit and determines the corresponding shaft torsional vibration.  A second processor determines the fatigue and life expectancy of the shaft system by accumulating torsional stresses caused by the respective shaft torsional vibrations.
Patent CA-1307615-C (CA)
Title: Production of alkali-soluble, carboxyl-functional aqueous emulsion thickeners
Inventor: SHAY GREGORY D
IPC: C08F2/24
Filed: 1988-04-15
Granted: 1992-09-15
Abstract: PRODUCTION OF ALKALI-SOLUBLE, CARBOXYL-FUNCTIONAL           AQUEOUS EMULSION THICKENERS           ABSTRACT        There is disclosed a method of carrying out an aqueous emulsion copolymerization to provide an alkali-soluble anionic copolymer having thickening characteristics while minimizing plating and grit problems in which the aqueous emulsion copolymerization of monoethylenically unsaturated monomers comprising from 15% to 50% by weight of carboxyl-functional monomer, at least about 10% by weight of monomer, preferably a urethane monomer, having surfactant characteristics, and the balance of the monomers being selected to provide a water insoluble copolymer, is carried out in the presence of a salt of an aromatic sulfonic acid, such as sodium styrene sulfonate, in an amount of from about 0.1% up to about 6.0%, by weight.
Patent CA-1304479-C (CA)
Title: Electric monitoring system for load handling vehicles
Inventor: JURCA ZELJKO T
IPC: B66F9/24
Filed: 1988-05-20
Granted: 1992-06-30
Abstract: Abstract of the Disclosure The invention provides an electric monitoring system for use in association with a load handling vehicle, such as a fork lift truck.  The system provides a number of transducers and switches operable in response to operating conditions of the vehicle such as whether it is loaded or unloaded, and whether it is stationary or being driven, and gating circuitry interconnects these transducers and switches with a variety of timers and counters which record the various modes of use of the vehicle during a working shift.
Patent CA-1310146-C (CA)
Title: Display controller utilizing attribute bits
Inventor: LATHROP OLIN G
IPC: G09G5/06
Filed: 1988-07-22
Granted: 1992-11-10
Abstract: Abstract of the Disclosure A processing system for controlling a computer graphics display stores and processes bit-mapped digital pixel values to generate color display signals.  The system incorporates memory elements for storing control values for each pixel, in association with color values for each pixel. Processing modules responsive to the per-pixel control and color values generate color display signals.  Embedding per-pixel control information in the bitmap in association with per-pixel color information enables each pixel to independently control the operation of the processing modules on that pixel.
Patent CA-1292107-C (CA)
Inventor: TAKAKUSAKI NOBUYUKI
IPC: B29C35/08
Filed: 1988-08-03
Granted: 1991-11-19
Abstract: Abstract of the Disclosure Disclosed is an apparatus for preparing a drawn heat-set plastic hollow vessel, which comprises a mandrel for supporting a preform composed of a plastic material and a hollow vessel formed from said preform, a supply zone for mounting the preform on said mandrel, a preheating zone comprising a turret having along the periphery thereof a plurality of supporting seats for supporting said mandrel and a heating mechanism for heating the preform on the mandrel, a blow-forming and heat-setting zone comprising a plurality of openable and closable blow-forming and heat-setting molds and a rotary member having along the periphery thereof mandrel supporting members corresponding to said molds, a delivery zone for delivering the mandrel having the preheated preform mounted thereon, which comes from the preheating zone, to the blow-forming and heat-setting zone, a withdrawal zone for withdrawing the mandrel having a blow-formed and heat-set vessel mounted thereon from the blow-forming and heat-setting zone, and an endless delivery passage for passing the mandrel through said supply zone, preheating zone, delivery zone, blow-forming and heat-setting zone and withdrawal zone in the recited order, wherein the blow-forming and heat-setting zone comprises a mold heated at a heat-setting temperature through the entire course of rotation, a mold opening and closing mechanism for closing the mold after the mold has passed through the delivery zone and opening the mold when the mold arrives at the withdrawal zone, a hollow drawing rod arranged concentrically with the mandrel, which is capable of reciprocating relatively to the preform, a first gas passage laid out between the periphery of the drawing rod and the mandrel and leading to the interior of the preform, a second gas passage arranged in the interior of the drawing rod and leading to the interior of the preform through openings distributed in the length direction of the drawing rod, a high-pressure hot air supply mechanism and a hot air discharge mechanism, leading to the first gas passage through an opening-closing valve or a changeover valve, a low-pressure cold air supply mechanism leading to the second gas passage through an opening-closing valve, and an opening-closing control valve for connecting the first gas passage to the high-pressure hot air supply mechanism synchronously with insertion of the preform into the drawing rod to effect the draw-blow forming of the preform and simultaneously confining hot air in the formed vessel to effect the heat-setting of the formed vessel and for connecting the first gas passage to the hot air discharge mechanism after the heat-setting and connecting the second gas passage to the cold air supply mechanism to effect discharge of hot air and cooling of the vessel.
Patent CA-1298383-C (CA)
Inventor: BOS PETER J
IPC: F25B13/00
Filed: 1988-08-24
Granted: 1992-03-31
Abstract: ABSTRACT     The present application discloses a method for con-trolling the defrosting of a heat transfer unit of a tempera-ture conditioning system by initiating a defrost operation when a predetermined amount of frost has accumulated on the unit during a frost accumulation period that occurs between defrost operations, a predetermined desired defrost time being required to defrost said unit when it has the predeter-mined amount of frost accumulated thereon.  The method includes the steps of: sensing the unit temperature, deter-mining the time required to defrost the unit, increasing the frost accumulating period before initiating the next defrost operation if the time to complete the last defrost was less than the desired defrost period, or decreasing the frost accumulating period if the time to complete the last defrost was greater than desired, sensing the ambient temperature in the vicinity of the unit, determining the temperature differ-ential the unit and ambient, and during at least a first portion of the first accumulating period initiating the defrost operation when the temperature differential exceeds a threshold value.
Patent CA-1321699-C (CA)
Title: Heat recoverable article
Inventor: JENSEN PER J T
IPC: F16L5/02
Filed: 1988-09-08
Granted: 1993-08-31
Abstract: ABSTRACT     A tubular article comprises an electrically conductive polymeric material.  The article increases in wall thickness on recovery.  It can be used for example as a duct seal or as an internal coupler or seal for hollow conduits such as pipes.  The article may have plain or convoluted walls.
Patent CA-1306927-C (CA)
Title: Pilot-assisted pressure relief valve
Inventor: ELLIOTT DANIEL J
IPC: F16K17/06
Filed: 1988-09-09
Granted: 1992-09-01
Abstract: Abstract of the Disclosure An improved compact pilot-assisted pressure relief valve is disclosed.  The invention includes a vent piston or the like hydraulically dividing the valve body bore into a hydraulic fluid chamber and a spring chamber which is vented to atmosphere, such that backpressure is eliminated entirely for both faster reaction to pressure impulses and improved accuracy in pre-load setting of the valve assembly.
Patent CA-1309941-C (CA)
Inventor: MATSUURA SATOSHI
IPC: C08F255/08
Filed: 1988-09-20
Granted: 1992-11-10
Abstract: LAMINATED PLATE FOR HIGH FREQUENCY AND        METHOD FOR PRODUCING SAME             ABSTRACT OF THE DISCLOSURE    A laminated plate for a high frequency comprising a reinforced plastic layer and a conductive layer bonded to an outermost layer of the reinforced plastic layer, wherein the reinforced plastic layer comprises rein-forcing fibers impregnated with poly(4-methyl-1-pentene) at least partially graft-modified with an unsaturated carboxylic acid or a derivative thereof.
Patent CA-1297551-C (CA)
Title: Deactivatable magnetic marker, method of making same and article surveillance system utilizing same
Inventor: HUMPHREY FLOYD
IPC: G08B13/24
Filed: 1988-11-02
Granted: 1992-03-17
Abstract: Abstract of the Disclosure A magnetic marker comprising a magnetic material having a hysteresis characteristic which is such that upon subjecting the material to an applied alternating magnetic field, the magnetic flux of the material undergoes a regenerative step change in flux at a threshold value when the field increases to the threshold value from substantially zero and undergoes a gradual change in flux when the field decreases from the threshold value to substantially zero.  For increasing values of applied field below the threshold, there is substantially no change in the magnetic flux of the material.  The aforesaid hysteresis characteristic of the marker is achieved by causing the material to have domains with a pinned wall configuration.  Deactivation of the marker is realized by disabling the pinned walls from returning to their pinned condition via application of a deactivation field of high frequency and/or amplitude.
Patent CA-1340506-C (CA)
Title: Production of gonorrheal pi proteins and vaccines
Inventor: CARBONETTI NICHOLAS H
IPC: A61P31/04
Filed: 1988-11-22
Granted: 1999-04-20
Abstract: The present invention relates to a gene sequence coding for Protein I of Neisseria gonorrhoeae, and cloning vector and host organisms containing same.  Also disclosed are oligonucleotides useful as diagnostic probes for the detection of N. gonorrhoeae infection.
Patent CA-1281386-C (CA)
Title: Accurate current conveyor
Inventor: WADSWORTH DOUGLAS CLIFTON
IPC: G05F1/56
Filed: 1988-12-29
Granted: 1991-03-12
Abstract: ABSTRACT OF THE DISCLOSURE         In the class of electronic circuits known as current conveyors,  limitations in the areas of frequency bandwidth, transient response, output impedance, distortion, accuracy, and suitability for integration are overcome by means of a current conveyor comprising a Wilson current mirror of one polarity type cross-coupled with a second Wilson current mirror of the opposite polarity type.  The first Wilson current mirror is connected to an input port and a reference port.  The second Wilson current mirror is supplied with current by a current-splitting circuit which also supplies an output port with a current that is proportional to, preferably half, the current supplied to the second current mirror.   An emitter de-generation compensation scheme may optimize the transient response and stability of the mirrors.  The current splitter may also comprise current mirrors.          A voltage-to-current converter may be realised by connecting suitable resistors in series with the input and reference ports, respectively.
Patent CA-1334711-C (CA)
Title: Concrete joint sealant having improved adhesion
Inventor: SPELLS SHERWOOD
IPC: C08L83/04
Filed: 1989-03-01
Granted: 1995-03-07
Abstract: A silicone sealant composition which bonds to dolomite containing concrete after exposure to moisture is obtained by adding a silicone fluid having greater than 2 mole percent epoxy functionality to a sealant of the type containing a hydroxyl endblocked polydiorganosiloxane, acetamidosilane chain extender and crosslinking agent selected from the group consisting of triacetamidosilane and aminoxysilicon compound.
Patent CA-1298885-C (CA)
Title: Combineur a dephasage pour ondes electromagnetiques
Inventor: CRUCHON JEAN-CLAUDE
IPC: H01P5/12
Filed: 1989-03-31
Granted: 1992-04-14
Abstract: Combineur à déphasage pour ondes électromagnétiques comprenant au moins une cellule à déphasage formée d'un coupleur hydride, d'une ligne de transmission d'entrée, d'une ligne de transmission de sortie et d'une ligne de transmission de boucle reliée entre la première entrée et la première sortie du coupleur. La ligne de transmission d'entrée est reliée à la deuxième entrée du coupleur et la ligne de transmission de sortie est reliée à la deuxième sortie du coupleur. L'invention trouve une application notamment dans le domaine des télécommunications.
Patent CA-1320953-C (CA)
Title: .alpha.-adrenergic receptor antagonists
Inventor: LAFFERTY JOHN J
IPC: A61P9/00
Filed: 1989-05-26
Granted: 1993-08-03
Abstract: ABSTRACT OF THE DISCLOSURE          Alpha-adrenoceptor antagonists having the formula   which are useful to produce .alpha.-adrenoceptor antagonism, pharmaceutical compositions including these antagonists, and methods of using these antagonists to produce .alpha.-adrenoceptor antagonism in mammals.
Patent CA-1339665-C (CA)
Inventor: SCHAEFER MICHEL
IPC: A61K49/04
Filed: 1989-06-01
Granted: 1998-02-10
Abstract: This invention relates to novel non-ionic compounds of the formula:                          (see fig.I) These compounds can be used as contrast media.
Patent CA-1327503-C (CA)
Inventor: MINNS CHARLES R
IPC: C11D7/60
Filed: 1989-06-07
Granted: 1994-03-08
Abstract: CARPET CLEANING COMPOSITION AND METHOD OF USE     ABSTRACT               An aqueous cleaning composition suitable for removing stains, soils, or combinations thereof from synthetic polymer fibers.  The composition finds particular application in removing coffee stains from fibers contained in textile products such as carpets. The composition has a pH in the range of from about 7.0 to about 12 and comprises a peroxyhydrate, i.e., hydrogen peroxide, and a water soluble alcohol having up to 5 carbon atoms, i.e., isopropyl.