baber/WOPTO huggingface dataset:
Patent CA-1292879-C (CA)
Title: Mine cooling
Inventor: VAN RENSBURG CARL S J
IPC: F25D23/12
Filed: 1987-04-21
Granted: 1991-12-10
Abstract: ABSTRACT OF THE DISCLOSURE            A subterranean excavation such as a mine working is cooled by a refrigeration plant having a heat rejection system at an upper station and a heat absorption system in the excavation, the refrigerant medium being ammonia.  The system includes a surge drum at the upper station and maybe also at the excavation.  Safety measures include the location of the vapour and liquid pipes in a borehole separate from the mine shaft or shafts.
Patent CA-1336938-C (CA)
Inventor: RAVICHANDRAN RAMANATHAN
IPC: C08L91/00
Filed: 1987-04-29
Granted: 1995-09-12
Abstract: A composition comprising an organic material selected from the group consisting of poly-mers devoid of silicon atoms, naturally occuring and synthetic mineral oils, animal and vegetable fats, oils and waxes and synthetic ester-based oils, fats and waxes subject to oxi-dative, thermal and/or actinic degradation and as stabilizer at least a compound of for-mula (I)             (I) wherein n is the number 0, 1, 2 or 3 and R, R1 and R2 are independently hydrogen, alkyl of 1 to 36 carbon atoms, cycloalkyl of 5 to 12 carbon atoms, aralkyl of 7 to 9 carbon atoms or said aralkyl substituted by alkyl of 1 to 36 carbon atoms.
Patent CA-1337570-C (CA)
Inventor: GRADY STEVEN CLIFFORD
IPC: H04M3/58
Filed: 1987-06-29
Granted: 1995-11-14
Abstract: This invention relates to business communication systems and, in particular, to message service system apparatus that provides a call transfer capability between a message service system and any of the telephone station sets and trunk circuits of a telephone switching system.  The business communication system provides a number of message service systems (voice mail, message center, etc.) and integrates the control of these message service systems so that a calling party can transfer an existing call connection between the message service system and any telephone station set, trunk circuit or other message service system served by the business communication system.
Patent CA-1313552-C (CA)
Title: Demand limit control by integral reset of thermostats
Inventor: KIDDER KENNETH B
IPC: G05D23/19
Filed: 1987-08-27
Granted: 1993-02-09
Abstract: ABSTRACT OF THE DISCLOSURE          A temperature control system for a building is disclosed utilizing a central demand limit controller.  The system includes a number of control modules or thermostats that have both proportional error and integral error functions.  The integral error is reset at intervals by an interstage differential to drop single stages of air conditioning.  This reduces demand until the maximum allowed demand is met.  The integral error function is a timed function and the stages return in a random manner to restore setpoint temperature.
Patent CA-1328822-C (CA)
Title: Prefabricated construction element for implant-fixed prosthesis, and a method for the use thereof
Inventor: LUNDGREN DAN
IPC: A61C/
Filed: 1987-08-28
Granted: 1994-04-26
Abstract: ABSTRACT     Prefabricated construction element for an implant-fixed prosthesis, comprising a central portion which can be attached to an implant-fixed anchorage element, and two projecting wing-like portions extending from substantially diametrically opposite positions, and the use of such construction elements for building up a unitary bridge body or a model of a bridge body by interconnecting the wing-like portions of adjacent construction elements which are mounted to implanted anchorage elements.
Patent CA-1329277-C (CA)
Inventor: JAMESON GRAEME J
IPC: B03D1/14
Filed: 1987-09-24
Granted: 1994-05-03
Abstract: ABSTRACT        IMPROVED COLUMN FLOTATION METHOD AND APPARATUS       A method and apparatus for the benefication of mineral ores by the flotation method whereby a slurry is introduced under pressure into the top of a fist column through a downwardly facing nozzle, and air is entrained into the slurry forming a downwardly moving foam bed in the first column. The foam bed passes from the bottom of the first column into a second column where the froth and liquid separate, the froth carrying the values floating upwardly separate, the froth carrying the values floating the gangue.  The liquid/froth interface level in the second column is kept above the bottom of the first column, and the air flow rate into the top of the first column is controlled to keep the first column substantially full of foam.
Patent CA-1301901-C (CA)
Inventor: YEOM KWANG Y
IPC: H05K9/00
Filed: 1987-10-06
Granted: 1992-05-26
Abstract: ABSTRACT OF THE DISCLOSURE .    A shield case for antenna terminal has a substrate being housed there within signal-transmitting condensers  and ground-balancing condensers are spaced from one another and gaps are provided between each of the signal-transmitting condensers and between each of the ground-balancing condensers.          The gaps serve to have excellent effect of insulation and resisting pressure.  The substrate has holes for receiving leads of the condensers.  The condensers are connected in series to the central conductor and the shield wire of the coaxial cable.
Patent CA-1308097-C (CA)
Title: Polysaccharide isolation process
Inventor: CANNON JOHN J
IPC: C12P19/04
Filed: 1987-10-26
Granted: 1992-09-29
Abstract: POLYSACCHARIDE ISOLATION PROCESS                     Abstract A process for the isolation of a polysaccharide from an aqueous solution such as a fermentation broth by contacting the solution with from about 2 to 20 weight percent of a polyethylene glycol of number molecular weight of at least about 1000, and separating the solids which precipitate.  The process is adaptable to the precipitation of both nonionic polysaccharides such as scleroglucan and ionic polysaccharides such as xanthan and succinoglycan.
Patent CA-1306931-C (CA)
Inventor: PRICE NEIL H
IPC: G01N21/78
Filed: 1987-12-14
Granted: 1992-09-01
Abstract: Abstract of the Disclosure A method for detecting the presence of carboxylic acids in a specimen is provided.  A specimen is contacted with a developing system containing a metal salt reactive with carboxylic acids present in the specimen to form metal-carboxylic acid complexes.  Any such complexes are colorimetrically detected by their activity in catalyzing oxidation of a chromogen such as guaiac.  The method is useful in detecting intestinal helminth infestation.
Patent CA-1287968-C (CA)
Inventor: POMPE LARRY W
IPC: G02C13/00
Filed: 1988-03-07
Granted: 1991-08-27
Abstract: ABSTRACT OF THE DISCLOSURE An appliance for cleaning hard or soft contact lenses, as well as other delicate optical objects.  A frame carrying a cleaning pad or cloth is mounted in a base.  The frame has an access opening that is covered by the pad.  The pad overlaps the edges of the frame defining the access opening.  The base has a mounting opening corresponding in size and shape to the shape of the frame such that the frame can be installed in the opening of the base with the edges of the pad lodged between the frame and the base and the portion of the pad covering the access opening exposed and accessible by the user.  Cleaning solution is applied to the accessible portion of the pad and the contact lens rubbed upon it in order to clean the lens.
Patent CA-1289561-C (CA)
Title: Method of manufacturing cis-2,6-dimethylmorpholine
Inventor: BORSDORFF HORST-WOLFRAM
IPC: B01J23/86
Filed: 1988-03-17
Granted: 1991-09-24
Abstract: ABSTRACT OF THE DISCLOSURE    Cis-2,6-dimethylmorpholine is manufactured by catalytic isomerization of trans-2,6-dimethylmorpholine. A previously hydrogen-activated copper chromite catalyst is used for catalytic isomerization of the trans-2,6-dimethylmorpholine.  The catalyst preferably also contains barium oxide and/or manganese dioxide.  The process is carried out at 180-300°C and 1-500 bar absolute.  The inexpensive novel catalyst enables conversions which are better than those with known methods.
Patent CA-1280269-C (CA)
Inventor: RUHL EDWARD A
IPC: F16B1/00
Filed: 1988-03-29
Granted: 1991-02-19
Abstract: ABSTRACT OF THE DISCLOSURE          A safety strap assembly for removably interconnecting a pair of engaging molds for a plastic molding or die cast die for retaining the molds against accidental separation and wherein a pair of laterally spaced shoulder bolts  are secured to the molds respectively. A strap assembly comprises a locking plate spanning the dies and having a pair of spaced apertures terminating in keyhole slots adapted to receive the shoulder bolts and the bolts retainingly engaging the locking plate when in locking position. The locking plate is rotatable to an unlocked position disengaging the shoulder bolts from the locking plate. A locating cover overlies and pivotally mounted upon the locking plate and has a pair of spaced apertures receiving the shoulder bolts. The locking plate is rotatable relative to the locating cover until its apertures are in registry with the shoulder bolts.
Patent CA-1308310-C (CA)
Inventor: PAPULSKI KEITH A
IPC: D06H7/22
Filed: 1988-04-07
Granted: 1992-10-06
Abstract: A B S T R A C T     Non-fraying Substrate for Use in an Orthopaedic Casting Bandage and a Process for its Preparation A resin-coated, knitted glass fibre substrate is prevented from fraying at a cut end by the presence at the said cut end of a polymer strip.   The substrate is preferably coated with a water curable resin whereby the coated substrate can be used as an orthopaedic bandage.   Processes for applying the polymer strip to the resin-coated substrate are also described.
Patent CA-1322400-C (CA)
Inventor: PASTRONE JOHN
IPC: G01N29/46
Filed: 1988-04-29
Granted: 1993-09-21
Abstract: A B S T R A C T           The invention relates to an ultrasonic liquid detector comprising an ultrasonic sound generator and an ultrasonic sound receiver spacedly disposed from one an-other so as to receive a liquid carrying member there-between; and wherein each of said sound generator and sound receiver includes a substrate, a layer of conductive material on said substrate, said conductive layer having at least two regions electrically isolated from each other, a piezoelectric chip placed in electric contact over at least a portion of the first region of said conductive layer, and a conductive member extending between said piezoelectric chip and the second region of said conductive layer; whereby an electrical signal having a frequency of the resonant frequency of said piezoelectric chip on said sound generator can be applied between said first and second regions to cause ultrasonic sound to be generated and whereby the ultrasonic sound received by said piezo-electric chip on said sound receiver can be electrically detected by monitoring the electrical signal produced between the first and second regions of the conductive layer on said sound receiver.
Patent CA-1318646-C (CA)
Title: Web rewind apparatus with cutless web transfer
Inventor: JORGENSEN ALLEN E
IPC: B65H19/28
Filed: 1988-05-26
Granted: 1993-06-01
Abstract: WEB REWIND APPARATUS WITH CUTLESS WEB TRANSFER          Abstract Of The Present Invention A paper web rewind device includes a rewind turret having circumferentially spaced support members with end chucks for rotatably supporting tubular cores on which a web is rewound.  Each set of supports is separately rotated and the turret is rotated to locate one core at a rewind station and the second core at an unload/load station.  A rider roll at the rewind station is pivotally mounted and moves upwardly onto the core and then outwardly as the roll diameter increases. Just prior to completion of a rewound roll, the turret rotates and moves the rewinding roll while continuing to wind web thereon and also moves a new core to the loading station with rider roll moved to engage the new core.  The moving web engages the new core which is rotated at winding speed.  A sensor senses the turret position and is operable to decrease the winding speed of the wound roll to create a slack loop between the new core and the wound roll.  The high speed rotating new core attracts the slack web onto the new core and the web wraps onto the new core and into the nip between the new core and rider roll.  The rota-tion of the wound roll is stopped and the rotating new roll pulls on the slack loop and creates a sudden snap action force on the web.  The snap action force separates the web immediately adjacent the rider roll on a line extending across the web and thereby frees the web for a continuous winding onto the new core.
Patent CA-1309000-C (CA)
Inventor: SEATON CHARLES B
IPC: G01N33/70
Filed: 1988-06-14
Granted: 1992-10-20
Abstract: ABSTRACT         A cold stable liquid reagent system suitable for use in a Jaffe method for the determination of creatinine comprises:         (a)  a homogeneous liquid picric acid component comprising picric acid in an amount of no more than about 35 mM, such that the picric acid component remains visibly homogeneous at a temperature between about 2 to about 8°C for 30 days or more;         (b)  a homogeneous liquid alkaline buffer component comprising:         (i)  an alkaline material in sufficient amount to maintain the pH of the alkaline buffer component at more than about 13, for controlling the pH of the assay ready reagent formed by combining the picric acid and alkaline buffer components;        (ii)  at least one pH buffer material;       (iii)  a detergent for reducing interference by proteins in the Jaffe method; and (iv)  borate for reducing interference by carbohydrates in the Jaffe method; wherein the alkaline buffer components contains substantially no metallic cations such that the component remains visibly homogeneous at a temperature between about 2 to about 8°C for 30 days or more.          Preferably the alkaline material is tetramethylammonium hydroxide, and the detergent is diethanolamine dodecyl sulfate.
Patent CA-1322470-C (CA)
Inventor: OKABAYASHI MAKOTO
IPC: G01F1/32
Filed: 1988-06-15
Granted: 1993-09-28
Abstract: ABSTRACT OF THE DISCLOSURE     A   fluidic  flowmeter  having  a  reduced   pipe portion, a discharge  nozzle and  an  enlarged  pipe portion  disposed  in series in the order in  a  fluid flow direction,  a pair of control nozzles formed on a boundary between the discharge nozzle and the enlarged pipe  portion  and oriented substantially normal to  a discharge  direction  of the  discharge  nozzle,  the control  nozzles facing each other,  a pair of  return flow   passages  connecting  between  the   respective control nozzles and a donwstream side of the  enlarged pipe  portion,  a target for stabilizing switching  of fluid  flow direction at the enlarged pipe portion,  a flow amount measuring sensor for detecting a variation in  pressure or flow amount due to a variation in  the flow direction of discharged fluid from the discharged nozzle, a pair of first partition walls for sectioning the enlarged pipe portion, the control nozzles and the return  flow  passages,  a second partition  wall  for forming  discharge  passages  togetherwith  the  first partition  walls.    A  face of  the  target  directed towards  the discharge nozzle is positioned between  a straight line interconnecting center portions of outer peripheral  faces  of  the first partition  walls  and another straight line interconnecting leading edges of the first partition walls at the control nozzle side.
Patent CA-1282866-C (CA)
Title: Thermal package for electronic components
Inventor: FRIEDMAN HARVEY S
IPC: H01L23/36
Filed: 1988-06-30
Granted: 1991-04-09
Abstract: ABSTRACT OF THE DISCLOSURE    A thermal package for electronic components, such as semiconducting chips, is disclosed.  Each chip is connected to a pointed circuit interconnect substrate by flexible Tape Automated Bonding leads, and a pliant foam pad is attached to the surface of each chip adjacent the printed circuit interconnect substrate.  A heat spreader is attached to the major surface of each chip above the printed circuit interconnect substrate.  The heat exchangers are mounted to a support plate that is disposed above the printed circuit interconnect substrate.  An external heat exchanger is attached to the exposed major surface of the support plate.  The heat spreaders are secured to the support plate so they are urged upwards against the external heat sink.  Heat generated by the chips is conducted through the heat spreaders to the external heat sink.  Conductors on the support plate and the heat sink are used to provide a voltage to the chips.
Patent CA-1296303-C (CA)
Title: Garment receptacle clothes hanger support
Inventor: KING WILLIAM L
IPC: A45C13/03
Filed: 1988-07-28
Granted: 1992-02-25
Abstract: Abstract of the Disclosure A  hanger  support  trolley  assembly  which   allows conventional  clothes hangers to be loaded onto a support even  though corner pockets in the garment bag are closely spaced on either side of the assembly.   In one embodiment the hangers are supported on a sleeve slidably mounted  on a support rod.   When the sleeve is extended,  hangers can be placed on the sleeve,  and when closed a flange on  the outer and of the sleeve retains the hangers in place.   In another embodiment,  the hangers are supported directly on a support rod,  and the space surrounding the free end  of the  rod is guarded by one or more biased jaws of a spring clip.   In  both  embodiments a concave  overhead  surface closely  spaced from the arcuate rod prevents the  hangers from  being  permanently transversely dislodged  from  the support.
Patent CA-1294014-C (CA)
Title: Apparatus for and method of discriminating signals
Inventor: SAIGO AKIRA
IPC: H03H7/46
Filed: 1988-08-05
Granted: 1992-01-07
Abstract: ABSTRACT OF THE DISCLOSURE    A signal discriminator adapted to discriminate a signal with a specific frequency out of a current composed of two or more superimposed components with different frequencies.  One type of signal discriminator disclosed includes a first coil composed of a primary and a secondary winding wound with the same number of turns and in the same direction on a core whose magnetomotive force and magnetic flux density are roughly proportional to each other, a second coil composed of a primary and a secondary winding wound on a core whose magentomotive force and magnetic flux density are roughly proportional to each other, and an impedance circuit.          Another type of signal discriminator is composed of a first winding with short-circuited ends and a second winding for detecting signals both wound on an annular core having an approximately linear BH characteristic with the magnetomotive force and the magnetic flux density roughly proportional to each other.  Also disclosed is a method of obtaining the high frequency component of the signals transmitted through a signal line which is passed through said annular core.
Patent CA-1276009-C (CA)
Inventor: FUERSCHBACH RAYMOND F
IPC: F28F13/12
Filed: 1988-09-08
Granted: 1990-11-06
Abstract: ABSTRACT OF THE DISCLOSURE A plate heat exchanger in which the various plates from which it is fabricated are brazed together in a stacked assembly comprised of flow plates and heat transfer plates arranged in alternating relationship.  The heat exchanger has inlets and outlets for two fluids with passage networks extending between the inlets and outlets and turbulator members are located in each flow cavity formed between adjacent surfaces of the heat transfer and flow plates.  The turbulator members are interchangeably positionable between each pair of adjacent flow and heat transfer plates and are selectable from a plurality of differently configured turbulator members.  Plate sizes, shapes and openings therein are standardized to provide a basic heat exchanger system which can be fabricated in easily modified embodiments to meet various and diverse heat exchange requirements.
Patent CA-1297531-C (CA)
Title: Inductive power converter for use with variable input and output voltages
Inventor: RENGER HERMAN L
IPC: G01R19/165
Filed: 1988-11-29
Granted: 1992-03-17
Abstract: INDUCTIVE POWER CONVERTER FOR USE WITH                  VARIABLE INPUT AND OUTPUT VOLTAGES                         ABSTRACT OF THE DISCLOSURE       A power converter for use in converting a variable DC input voltage into a variable DC output voltage is disclosed which uses control circuitry on both the input and the output to optimize converter performance.  By charging the inductor up nearly to the saturation  point,  but  completely  avoiding  saturation  of  the inductor, power capability at the input end is maximized.   By discharging the inductor completely without either losing power capability by continuing to attempt to discharge the inductor after the charge is depleted or by failing to nearly discharge the inductor thereby presenting the possibility of saturation to the boosting of current through the inductor during the next charge cycle.
Patent CA-1334390-C (CA)
Inventor: DINKA STEPHEN K
IPC: A61P35/00
Filed: 1988-12-09
Granted: 1995-02-14
Abstract: This invention relates to cell growth modulating materials which are present in blood and other biological fluids.  These growth promoting or inhibiting materials comprise glycoproteins and can be removed from the biological fluids by the use of lectins.  This invention also relates to cell growth enhancers produced from the lysis of red blood cells, as well as methods of extracting growth promoting substances from body fluids and compositions and methods of use for same.
Patent CA-1325218-C (CA)
Title: Phenolic compound and its use as stabilizer for butadiene polymer
Inventor: SASAKI MANJI
IPC: C08L9/00
Filed: 1988-12-15
Granted: 1993-12-14
Abstract: ABSTRACT             A compound represented by the formula of   This compound is useful as a stabilizer for butadiene polymers.
Patent CA-1340793-C (CA)
Title: Process for producing 1-substituted aryl-1-4-dihydro-4-oxonaphthyridine derivative, intermediates therefor and processes for producing the intermediates
Inventor: SAIKAWA ISAMU
IPC: C07D401/04
Filed: 1989-01-16
Granted: 1999-10-19
Abstract: This invention relates to a 5-fluoronicotinic acid derivative or a salt of the derivative or a reactive derivative in the carboxyl group thereof which are useful as intermediates for producing a 1-substituted aryl-1,4-dihydro-4-oxonaphthyridine derivative.
Patent CA-1298991-C (CA)
Inventor: TAKAGI IZUMI
IPC: F16H48/08
Filed: 1989-01-27
Granted: 1992-04-21
Abstract: ABSTRACT OF THE DISCLOSURE         A differential gear device incorporating an internal meshing type planetary reduction gear has an externally toothed gear carried by a hollow input shaft through an eccentric member and an eccentric bearing, an internally toothed gear meshing with the externally toothed gear, a differential gear box disposed adjacent to the externally toothed gear, and a hollow drive splined at its one end to the externally toothed gear and splined at its other end to the differential gear box.  The device also has a left axle and a right axle one of which extends through the hollow input shaft.
Patent CA-1311734-C (CA)
Title: Reel bar loading mechanism with outwardly pivoting guide rails
Inventor: KREMAR DJURO
IPC: B65H19/30
Filed: 1989-04-06
Granted: 1992-12-22
Abstract: REEL BAR LOADING MECHANISM WITH OUTWARDLY PIVOTING GUIDE RAILS                 ABSTRACT OF THE DISCLOSURE           A reel bar loading device is provided having sloping storage rails located above the driving roll. The storage rails are pivotally connected at their lower ends to second rails.  The second rails have upper end portions, downwardly sloping portions and lower end portions.  The second rails in a first position are in alignment with the first rails and provide a continuum of the track permitting the reel to descend the second rails into an awaiting transfer arm mechanism.  The second rails are pivotal outwardly precluding movement of a reel from the first rails and allowing the transfer arm mechanism to move into a winding position.  A pair of lowering arms engage the reel at the opposite ends of the reels adjacent to and inside of the second rails to control the decent of the reel over the second rails when the second rails are in their first position.