baber/WOPTO huggingface dataset:
Patent AU-772748-C (AU)
Title: Control of series-resonant inductive pickups
Inventor: BOYS JOHN TALBOT
IPC: H02J17/00
Filed: 2000-09-06
Granted: 2005-03-24
Abstract: A series resonant inductive pickup has a bi-directional solid state switch in series with an inductor and a capacitor is controlled by switch control elements capable of causing the switching elements to repetitively be in either an open or a closed state, so that by varying the closed: open ratio of the switch the time-averaged amount of power picked up by the power pickup can be controlled. Switch is controlled by output of a voltage comparing circuit. A reference voltage source provides a basis for comparison of some fraction of a supply voltage in order to cause the switch to operate. The magnitude of capacitance in relation to the current drawn by the load determines the repetition rate of ON or OFF commands to the switch. If the current drawn by the load tends to zero, the proportion of time during which the switch is open will tend to 100%.
Patent CA-2006046-C (CA)
Title: Continuous production process of high-strength and high-modulus polyolefin material
Inventor: KOBAYASHI SEIZO
IPC: B29C43/22
Filed: 1989-12-19
Granted: 1994-04-05
Abstract: ABSTRACT A high-strength and high-modulus polyolefin material can be continuously produced from a polyolefin in a powder form by feeding the polyolefin powder between a combination of endless belts disposed in an up-and-down opposing rela-tion, compression-molding the polyolefin powder at a temperature lower than the melting point of the polyolefin powder by means of a pressing device while holding the polyolefin powder between the endless belts and conveying the same,  and then rolling and stretching the resultant compression-molded polyolefin.  The pressing device is con-structed of pressing platens and corresponding sets of rol-lers, which are all accommodated within the respective end-less belts.  The rollers in each set are connected togeth-er, and the sets of rollers are arranged movably in an end-less fashion between the respective platens and the endless belts associated therewith.
Patent CA-2007861-C (CA)
Title: Flexible process for the production of di and trialkylamines
Inventor: HELF BRIAN K
IPC: C07B61/00
Filed: 1990-01-16
Granted: 1997-01-28
Abstract: This invention relates to a process for the nonequilibrium controlled production of di and trialkylamines containing at least one C2-4 alkyl substituent in high selectivity by the catalytic amination of an alkanol with ammonia under conditions for forming said mono, di and trialkylamines.  The improvement in the process for producing di and trialkylamines comprises:     initially contacting a C1-4 alkanol with ammonia in the presence of hydrogen, under conditions for forming a mixture of mono, di and trialkylamines; separating the monoalkyl and dialkylamines from the trialkylamine formed in the initial amination of the alkanol; and contacting the dialkylamine with a C2-4 alkanol in a fixed bed reactor under gas phase conditions in the presence of hydrogen and a cobalt or nickel containing hydrogenation catalyst, the mole ratio of alkanol to dialkylamine ranging from 1 to 3:1, the reaction temperature ranging from 275 to 400°F, the pressure ranging from 150 to 350 psig and the gas hourly space velocity ranging from 500 to 2000 hr-1.     Monoalkylamine is converted to dialkylamine by reaction with a C2-4 alkanol in a fixed bed reactor under gas phase conditions in the presence of hydrogen and a cobalt or nickel-containing hydrogenation catalyst, the mole ratio of alkanol to monoalkylamine ranging from about 1 to 3:1, the reaction temperature ranging 275 to 400°F, the pressure ranging from 150 to 350 psig a gas hourly space velocity of 500 to 2000 hr-1.
Patent CA-2011643-C (CA)
Inventor: AOYAMA AKIMASA
IPC: C08L29/04
Filed: 1990-03-07
Granted: 1996-09-10
Abstract: Provided are compositions comprising a saponified product of an ethylene-vinyl acetate copolymer having an ethylene content of 20 to 80 mol% and a saponification degree of vinyl acetate component of at least 95 mol%.          The composition contains 20 to 200 ppm as converted to alkali metal of an alkali metal acetate, 30 to 250 ppm of acetic acid, and 5 to 500 ppm as converted to phosphate ion of phosphoric acid or an alkai metal hydrogenphosphate. It has a content ration of acetic acid/alkali metal acetate of 0.1 to 1 and the flow characteristic that the extrusion rate does not substantially increase for at least 10 hours in the relationship between the heating time and the extrusion rate with a capillary rheometer (Koka Flow Tester) at at least one temperature 10 to 80°C above the melting point.          Also provided are multilayered containers in which the innermost layer is formed by the above composition, and packages comprising such containers containing a liquid article or paste article.
Patent CA-2012414-C (CA)
Title: Hog cholera virus vaccine and diagnostic
Inventor: MEYERS GREGOR
IPC: A61P43/00
Filed: 1990-03-16
Granted: 2003-08-19
Abstract: Abstract The  present  invention  is  concerned with  a  hog cholera   virus   vaccine   comprising   a   polypeptide characteristic  of  hog  cholera  virus.  Vector  vaccines capable to express a nucleic acid sequence encoding such a polypeptide also form part of the present invention. Said polypeptide and nucleic acid sequence can also be used for the detection of hog cholera virus infection.
Patent CA-2013956-C (CA)
Title: Manner of rotatably mounting a bale wrapping material spreader roll to support walls
Inventor: ARDUESER WILLIAM A
IPC: F16C13/02
Filed: 1990-04-05
Granted: 1993-05-11
Abstract: MANNER OF ROTATABLY MOUNTING A BALE WRAPPING            MATERIAL SPREADER ROLL TO SUPPORT WALLS                  Abstract of the Disclosure A wrap material spreader roll includes a smooth, cylindrical tube having spiral flights at opposite end portions thereof formed from spirally wound wires of circular cross-section, the wires having respective inner ends defined by a radially inwardly projecting portion which is received in a respective hole provided in the tube.  The spreader roll is mounted to opposite support walls by respective bolts having hexagonal heads received in hexagonal bores provided in the inner races of a pair of roller bearings that are pressed into the opposite ends of the tube, the bolts having respective threaded stems received in keyhole-shaped holes provided in the walls and having nuts received thereon.
Patent CA-2016238-C (CA)
Inventor: DESAI PRAFUL C
IPC: E21B10/32
Filed: 1990-05-08
Granted: 1998-08-18
Abstract: A pipe milling apparatus for milling away tubular casing encased within well bores has a tubular body (12) having at least two equi-circumferentially spaced longitudinal slots (14) formed through the circumferential wall of the body and a milling blade (40) radially extends through each slot, each milling blade having a longitudinally extending flange portion (42, 46, 47) inside the tubular body, the flange portion including a tab (46) for holding the blade within the tubular body.  A radially inner surface (48) of each blade has a tapered surface for cooperating with a cylinderical mandrel (20) that is inserted into the tubular body, the mandrel having a taper corresponding to the taper on the blade such that the corresponding tapers frictionally abrade one another to wedge the blades radially outwardly of the tubular body.  In a further embodiment of the invention two tapered rings are provided each having tapers for locating respective ends of a blade so that movement of the rings toward one another causes the blade to be moved radially outwardly.  In such a further embodiment one of the rings is arranged to be flexible and the rings are biased toward one another by a compression spring.
Patent CA-2018716-C (CA)
Title: Incremental electrically actuated valve
Inventor: TISCHER JAMES C
IPC: F25B41/06
Filed: 1990-06-11
Granted: 1994-06-14
Abstract: An electrically actuated valve for incremental fluid flow rate control is disclosed.  The valve is comprised of a valve body having an interior with a planar outlet surface against which a rectilinear valve element is slidingly operated.  The valve body includes an inlet orifice and an outlet orifice in the planar outlet surface for fluid flow through the valve body.  The valve element has an orifice therethrough controlling flow through the outlet orifice in accordance with the position of the valve element, which is linearly actuated by a rotary stepper motor.  Linear actuation of the valve element by the rotary stepper motor is accomplished by a shaft extending through and rotating in bearings at opposing ends of the valve body.  A drive key on the shaft interfits a corresponding slot in the valve element and converts rotary motion of the shaft to linear motion of the valve element.
Patent CA-2022106-C (CA)
Title: Voice responsive remote-controllable system
Inventor: NAKASHIMA TOMOYUKI
IPC: G10L15/22
Filed: 1990-07-27
Granted: 1995-07-18
Abstract: There  is  disclosed  a  system  which  can  be subjected to remote control by an input voice command, which comprises: a voice detection circuit for detecting inputting of a voice signal; a voice command introduction circuit for introducing an inputted voice command after the detection by the voice detection circuit;  a speech recognition circuit for making a comparison between the voice  command  introduced  by  the  voice  command introduction circuit and a voice command registered in advance  to  thereby  recognize  the  introduced  voice command;  and  a  control  circuit  for  executing,  in dependency  upon  a  recognition  result  from  the  speech recognition circuit, a command determined in advance in correspondence with the registered voice command, wherein after input of the voice signal is detected, introduction of  the  inputted  voice  command  is  initiated,  whereby execution of the command determined in advance is carried out  in dependency upon  the  recognition  result of  the introduced voice command.
Patent CA-2026990-C (CA)
Title: Anti-hiv agent
Inventor: HOSHINO HIROO
IPC: C08B37/00
Filed: 1990-02-09
Granted: 1996-06-25
Abstract: The present invention provides an anti-HIV agent containing as the effective component a sulfated polysaccharide derived from a sea cucumber and/or a pharmaceutically acceptable salt thereof.
Patent CA-2028019-C (CA)
Title: Double screen belt press
Inventor: EICKHOFF KARL
IPC: D21F7/06
Filed: 1990-09-19
Granted: 1998-03-31
Abstract: A double screen belt press for dewatering mixtures of fibrous material suspensions has a wedge compression zone comprising rolls and perforated plates  supporting generally upper and lower screen belts.   For dewatering mixtures of fibrous material suspensions having a high dry solids content,  at least one sealed material  feed empties  into  the  wedge  compression  zone  with  a  high pressure.   A generally vertically gravity tower with an outlet  port  is  provided  to  feed  material  into  the entrance of the wedge compression zone above the lower screen belt and in front of the front roll supporting the upper screen belt.  The outlet port area of the material feed is  sealed on at least the side facing the lower screen belt and optionally on the side facing the upper screen belt and on the other side of the material feed facing away from the wedge compression zone between the material feed and the lower screen belt.
Patent CA-2034774-C (CA)
Title: Child resistant closure
Inventor: KUSZ MAXIMILLIAN
IPC: B65D41/04
Filed: 1991-01-23
Granted: 2002-06-25
Abstract: A child resistant closure comprising outer and inner nested closure members each of which has a base wall on a peripheral skirt with sets of lugs on the inner surface of the outer closure member and on the outer surface of the inner closure member which are adapted to be engaged when the members are moved axially toward one another. The outer surface of the base wall of the inner closure member is provided with a plurality of ramps and depressions and the inner surface of the base wall of the outer closure member is formed with a plurality of integral spring fingers. When the closure is applied, the springs fingers engage the depressions and orient the outer closure member and inner closure member preventing inadvertent engagement of the lugs by any top load. When the outer closure member is rotated relative to the inner closure member without bringing the lugs thereon into engagement, the spring fingers slip over the ramps allowing the outer closure member to rotate with respect to the inner closure member.
Patent CA-2036219-C (CA)
Inventor: LOEFFLER WILLIAM F
IPC: E04B1/26
Filed: 1991-02-12
Granted: 1994-09-20
Abstract: Abstract A single-piece, nonwelded multiple truss metal hanger connector is presented for connecting first and second supported wood members to a supporting wood member.  One of the supported members is oriented at 90° with respect to the supporting member and the other supported member is oriented at a skewed angle.  The connector has a flat seat for receiving the supported members and a pair of side flanges which extend perpendicularly upward from opposite side edges of the seat to form a U-shaped structure.  A pair of end flanges extend perpendicularly from the rear edges of the side flanges.  A pair of flange extensions extend outwardly from the forward edges of the side flanges at skewed angles. This construction permits either one of the supported members to be received by the hanger connector and oriented at 90° from the supporting member while the other one of the supported members is received by the connector and oriented at the skewed angle, thus eliminating the need for separate right hand and left hand devices.
Patent CA-2041544-C (CA)
Title: Thermal edge jet drop-on-demand ink jet print head
Inventor: ELDRIDGE JEROME MICHAEL
IPC: B41J2/145
Filed: 1991-04-30
Granted: 1996-03-19
Abstract: A thermal drop-on-demand ink jet print head in which conductor electrodes are formed on opposed surfaces of a print  head  substrate  and  extend to  the  edge  of  the substrate.  An array of heater elements is formed on the edge  of  the  substrate  in  electrical  contact  with  the conductor electrodes.   A nozzle plate  is mounted with a nozzle aligned with each heater element, and a manifold is positioned to provide ink to the space between the nozzle plate and the edge of the substrate so that a drop of ink can be ejected from the nozzle each time the  associated heater element is energized with a data pulse applied to a selected one of the conductor electrodes.
Patent CA-2045513-C (CA)
Title: Heat treatment and/or humidification of cops
Inventor: WANGER FREDDY
IPC: D06B19/00
Filed: 1990-12-20
Granted: 2001-02-20
Abstract: A method for steaming of spun cops based on a trough-shaped steamer (2) arranged directly adjacent to a spinning machine (1) parallel to the cops (15) of a spinning station (14) standing in a row. This enables a conventional handling device (17) to move the cops (15) from the spinning stations (14) into the steamer (2) and, after the steaming process, to move the cops (15") from the steamer (2) to the conveyor (16) of the spinning machine (1).      The steaming process is thus integrated with the material flow of the spinning plant.      The dwell times of the cops after steaming are largely predeterminable. Also, the space requirements of the equipment are minimal and there is no need for additional manual moving of the cops.
Patent CA-2049146-C (CA)
Title: Ablation catheter
Inventor: FEARNOT NEAL E
IPC: A61M25/00
Filed: 1991-08-13
Granted: 2001-09-11
Abstract: An ablation catheter is provided with an elongated member or shaft and a plurality of helically-shaped cutting wires attached to the shaft to form a cutting basket. Each of the cutting wires has a section formed as a circumferentially subscribing arc and together the wires present a circumferential cutting area of an essentially cylindrical configuration. Obstructing matter on the inner surface of a vessel cavity, such as a blood vessel or the like, is separated from the surface as the catheter is moved through the vessel. The catheter may be inserted in a vessel in a standard fashion using a wire guide which extends through a longitudinal passageway in the shaft and a hub interconnecting the basket wire. The shaft and basket together may be contained in an outer sheath to facilitate insertion. The outer sheath with the basket in a collapsed state in the outer sheath may be readily moved past an obstruction, and the sheath withdrawn to allow the basket to expand and come in contact with the interior surface of the vessel cavity. The proximal ends of the cutting wires extend from the shaft through a vibratory transducer, and the distal ends are connected together by a hub. Electrical current is applied to electrical terminals connected to the cutting wires at the proximal end of the shaft to heat the wires to facilitate separating obstructing matter from a vessel surface. Furthermore, the vibration transducer vibrates the cutting wires to further aid in separating plaque and obstructions from soft tissue such as the intima layer of the wall of a blood vessel.
Patent CA-2049442-C (CA)
Inventor: TERNEU ROBERT
IPC: C03C17/34
Filed: 1991-08-19
Granted: 2002-10-15
Abstract: Pyrolytic tin oxide coatings formed on soda-lime glass, particularly those formed from a tin chloride precursor, suffer from haze at the glass/coating interface due to the migration of sodium ions from the glass into the coating. Tin oxide coatings also exhibit iridescence in certain thicknesses.      In order to reduce iridescence and to provide a barrier against the incorporation of sodium into the tin oxide layer, the glass is first provided with an undercoating layer of oxidised metal which contains aluminium with a minor proportion of vanadium. The optical thickness of the undercoat is selected for the reduction of reflected visible light interference effects due to the tin oxide overcoat. An intermediate product comprises a glass substrate bearing a pyrolytically formed oxidised metal coating which comprises a layer in which said metal comprises aluminium with a minor proportion of vanadium and which has a refractive index of at least 1.67.
Patent CA-2052745-C (CA)
Title: Process for the preparation of carnosic acid and the use of the acid for its anticarcinogenic and antiviral properties
Inventor: AESCHBACH ROBERT
IPC: A61P31/22
Filed: 1991-10-03
Granted: 2002-12-17
Abstract: The invention relates to a process for the preparation of carnosic acid from rosemary or sage, in which the spice is extracted with a non-polar solvent or with a mixture of highly apolar solvents, the extract obtained is subjected to a selective adsorption treatment on a solid support, the carnosic acid is desorbed with a polar solvent or with a mixture of highly polar solvents and the solvent is evapo-rated.
Patent CA-2058440-C (CA)
Title: Use of mixed hydroxy ethers as aids for drying solids materials
Inventor: KOESTER RITA
IPC: C09K23/42
Filed: 1990-05-28
Granted: 2001-03-27
Abstract: The use of mixed hydroxyethers of the general formula I      R10-(CH2CH20)x-CH2-CH(OH)R2            (I) in which R1 denotes an alkyl group having 1 to 10 carbon atoms, R2 denotes an alkyl group having 8 to 20 carbon atoms, and x denotes a number in range from 1 to 20, as auxiliaries for the dehydration of water-containing finely divided solids, gives solids having a low water content without foaming in the water separated therefrom.
Patent CA-2061309-C (CA)
Title: Processes for the preparation of titanylphthalocyanines
Inventor: MAYO JAMES D
IPC: G03G5/06
Filed: 1992-02-17
Granted: 1996-11-05
Abstract: A process for the preparation of titanyl phthalocyanine Type X which comprises dissolving titanyl phthalocyanine Type I in a solution of trifluoroacetic acid and methylene chloride; adding the resultant solution to a solvent enabling precipitation of Type X titanyl phthalocyanine; separating the titanyl phthalocyanine Type X from the solution; followed by a first washing with an organic solvent and a second washing with water; and thereafter a solvent treatment with fluorobenzene.
Patent CA-2061966-C (CA)
Title: Integrated electronic warfare antenna receiver
Inventor: AGARWAL KRISHNA KUMAR
IPC: H01Q1/24
Filed: 1992-02-27
Granted: 2001-04-17
Abstract: An RF antenna and an associated receiver are proximately located in an integrated antenna/receiver unit thereby eliminating the need for baluns and inter-component cabling characteristic of prior designs. Integration of the receiver with the antenna provides for improved sensitivity as the need for utilizing signal dissipating and noise introducing cables and baluns to transmit the signal received by the antenna to the receiver is eliminated. Direct coupling of the antenna and receiver on a single gallium arsenide integrated circuit maintains balanced impedance from the antenna to the receiver.
Patent CA-2064628-C (CA)
Title: Combination mirror and sun visor
Inventor: SCHMIDT WILLIAM P
IPC: B60J3/02
Filed: 1992-04-01
Granted: 2000-06-13
Abstract: A combination sun visor and rear view mirror assembly includes a mirror, a mirror housing, and a bracket for attaching the housing to a vehicle. A sun visor panel is pivotally attached to the bracket and is rotatable about the mirror. The visor may be oriented above the mirror, below the mirror, or may be cover the mirror to shield the driver of the vehicle from a direct reflection o~ the sun. The visor is preferably formed from a tinted, translucent material.
Patent CA-2072846-C (CA)
Title: Publication personalization
Inventor: DOANE I GERALD
IPC: B42C3/00
Filed: 1992-06-30
Granted: 2005-06-14
Abstract: A method and apparatus provide for the personalization of magazines and like "book" publications. A book, having a cover which provides address information, is formed from a number of signatures. This is accomplished by automatically printing at least one personalized signature with variable personalized printing (such as by ion deposition), assembling the personalized signature with at least one other signature, detecting the personalized printing on the personalized signature (as by optically scanning OCR characters), and in response to such detecting, printing address information on the cover. The personalized printing can be the addressee's name, photograph, or identification number. The personalized signature may be assembled with other business documents, such as a business reply envelope, and may be perfed to provide a return form. Alternatively, complete address information may be printed on the signature and a die cut window formed in the cover, through which the address information is visible once the book is assembled. All of the books having address information with common postal codes are produced in a sequence -- regardless of the demographic form of the signature that has been personalized -- so as to maximize the chances for securing a minimum postal rate.
Patent CA-2075078-C (CA)
Title: Process for remote action taking, especially in a nuclear waste deep storage site
Inventor: FRENEIX GERARD
IPC: H04B3/52
Filed: 1992-07-31
Granted: 1995-12-05
Abstract: The present invention relates to a method of operating in an underground gallery (3) connected to the surface (1) by a shaft (2) provided with a hoist (4), in particular for the deep storage of radioactive waste. 
<??>It consists in rigging the waveguide site from a control station (5) comprising a signal generator and receiver and which is located at the surface, these waveguides being laid out: 
 
  - along at least one first line (6) at the surface, laid out from the control station (5) up to the entrance to the shaft (2), 
  - along at least one second line (7) laid out along the shaft (2) and connected to the first line (6) at its upper end, 
  - along at least one third line (8) laid out along the gallery (3) and connected to the second line (7) near the entrance to the gallery (3), 
 and being intended to track and/or remotely control the hoist (4) and at least one operating trolley (9). 
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