baber/WOPTO huggingface dataset:
Patent NO-179306-C (NO)
Inventor: PARRAUD RENE
IPC: H01B17/20
Filed: 1990-11-28
Abstract: The invention relates to a rigid electrical insulator of the line post or pin type, of which the lower end is fixed to the said line post or to the said pin and the insulating upper end of which has at least one groove intended to receive an electrical cable. According to the invention, this insulator comprises at least one central rod (1) fixed at its lower portion to the said line post (5) or to the said pin and at its upper portion to a rigid head (7) equipped with at least one indentation (8), the external face of the said rod and of the said rigid head being covered in a sealed manner by a covering (10), that of the said head being made from flexible elastomer and that of the rod being chosen from elastomers, resins and varnishes, the said indentation (8) provided with its covering defining the said groove (18). <IMAGE>
Patent NO-177875-C (NO)
Inventor: EIVINDSON TORKILD
IPC: G01N33/20
Filed: 1993-07-26
Abstract: PCT No. PCT/NO94/00114 Sec. 371 Date Dec. 29, 1995 Sec. 102(e) Date Dec. 29, 1995 PCT Filed Jun. 21, 1994 PCT Pub. No. WO95/03546 PCT Pub. Date Feb. 2, 1995The invention relates to a method for quantitative analysis of one or more elements in a molten metal bath. Light from one or more light sources are focused against the surface of the molten bath and is reflected from the surface of the metal bath to a monochromator or a polychromator connected to detectors for detecting absorbed light in a gas layer associated with the melt of a wavelength or wavelengths corresponding to the element or elements to be analyzed. The absorption signals are proportional to the atom- or molecular density of the components to be analyzed and a function of the thickness of the gas layer and the concentration of the element or elements in the molten metal bath. The concentration of the elements to be analyzed is the calculated based or known relations between absorption signal, the thickness of the gas layer and the temperature of the metal bath.
Patent CA-2004674-C (CA)
Inventor: KEEBLE PETER JOHN
IPC: H04B10/071
Filed: 1989-12-05
Granted: 1997-03-04
Abstract: 1.  A method is described of detecting loss in a branched optical fibre network comprising a first optical fibre (1) and a plurality of second optical fibres (3) each of which is coupled to the first optical fibre.  The first optical fibre (1) constitutes a main line, and the second optical fibres (3) constitute branch lines.  A respective reflector (5) is associated with each of the branch lines (3).  The method comprises the steps of launching a pulse into the main line (1) and monitoring the main line for changes in attenuation of reflected signals returning from the reflectors (5).
Patent CA-2009757-C (CA)
Title: Strainer cup for pop-up drain plug
Inventor: RIDGEWAY WILLIAM V
IPC: B01D35/04
Filed: 1990-02-09
Granted: 1995-12-05
Abstract: A conventional pop-up drain plug is movable up and down by an actuator system to open and close the entry open-ing of a drain pipe.  The plug includes a cap at one end to seal the opening, a base engagable by the actuator system, and an intermediate portion comprising a finned guide and a stem.  An upwardly open strainer cup having a centrally aper-tured bottom is forced over the plug base and onto the stem.          The cup includes small openings to pass drain water, and its rim is dimensioned to fit close to the drain pipe walls so that the cup will catch small articles passing through the drain pipe entry opening, while yet moving upwardly and downwardly with the drain plug.
Patent CA-2011055-C (CA)
Title: High-brightness all-weather type pavement marking sheet material
Inventor: KOBAYASHI SADAO
IPC: E01F9/576
Filed: 1990-02-27
Granted: 1995-04-25
Abstract: A high-brightness all-weather type pavement marking sheet  material is composed of a reflex-reflecting sheet and a base sheet.  The reflex-reflecting sheet comprises a  layer  of glass microspheres of  a  relatively  large diameter which are at least partially exposed in air and bonded to one another by a transparent resin, a layer of glass  microshperes of a relatively small diameter which are buried and fixed in a transparent resin layer behind the  glass  microspheres  of a large  diameter  with  an interval  between  the  glass microspheres  of  a  large diameter and the glass microspheres of a small diameter, and  a reflecting layer consisting of a metallized  film or   the  like  material  provided   behind  the   glass microspheres  of  a small diameter.   The base sheet  is made  of rubber or synthetic resin and is bonded to  the lower  surface of  the  reflex-reflecting  sheet.   The pavement   marking  sheet  material  has  an   excellent brightness  in reflection during night and  particularly when it is raining.
Patent CA-2011198-C (CA)
Title: Water heater with flame spill-out prevention arrangement
Inventor: MOORE HENRY J JR
IPC: F23M11/02
Filed: 1990-02-28
Granted: 1993-11-09
Abstract: WATER HEATER WITH FLAME SPILL-OUT    PREVENTION ON ARRANGEMENT                Abstract of the Disclosure A water heater having the inner door that closes the inner access opening lending  into the combustion chamber formed as a component part of a unitary manifold assembly which also includes the main burner with its manifold gas supply tube, the pilot burner with its gas supply tube, and the pilot burner control thermocouple with its support tube. The inner door thus may not be removed for servicing of the water  heater  unless the  complete  manifold  assembly  is removed from the inner access opening,  in which case the water heater is then rendered inoperative and incapable of main burner ignition to produce burner flames which could otherwise  spill-out  through  an  uncovered  inner  access opening left open by an unreplaced inner door.  The inner door component of the manifold assembly has a pilot burner lighting port which  is  normally  closed  off by  a  spring loaded door and which also enables observation of the pilot and main burner flames.
Patent CA-2012843-C (CA)
Title: Rubber bushing
Inventor: SCHWERDT HANS-WERNER
IPC: F16F13/00
Filed: 1990-03-22
Granted: 1995-11-21
Abstract: A hydraulically dampened rubber bushing includes radially spaced inner and outer tubes elastically interconnected through a first elastic rubber body means and a second elastic rubber body means in operatively parallel arrangement with the first elastic body.  The first elastic body means defines one or more pairs of radially opposite liquid filled chambers.  The second elastic body means is axially spaced from the first elastic body means and is positioned between the inner and outer tubes.  The second elastic body means is connected with either or both of the tubes and preferably includes two symmetrical terminal elastic bodies symmetrically positioned with respect to the first elastic body means. The rubber bushing has a large load bearing capacity range and an effective insulation and damping of acoustically prominent vibrations may be achieved over the whole of such range.
Patent CA-2015509-C (CA)
Inventor: SHAH RAJENDRA K
IPC: G05D7/06
Filed: 1990-04-26
Granted: 1998-06-23
Abstract: Apparatus and method for controlling a a motor having a stationary assembly with a plurality of winding stages for carrying motor current and further having a rotatable assembly in driving relation with a blower in an air handling system.  The apparatus provides control of the blower speed over a range of static pressure variations to maintain relatively constant preselected rate of air flow in the system.  The apparatus receives a preselected flow rate signal representing the preselected air flow rate.  A microprocessor, responsive to both the preselected flow rate signal and a speed signal, generates a desired torque signal which is a function of both the preselected flow rate signal and the speed signal.  The desired torque signal is compared to a signal representing motor torque and a comparison signal representing the comparison is generated. An IC control applies a motor voltage to one or more of the winding stages at a time in accordance with the comparison signal and commutatss the winding stages in a preselected sequence to rotate the rotatable assembly.  As a result, the blower is driven by varying the motor torque according to motor speed to maintain substantially constant air flow in the system at the preselected rate substantially independent of variations in the static pressure.
Patent CA-2016749-C (CA)
Title: Solid alpha-olefin polymerization catalyst components
Inventor: CHADWICK JOHN CLEMENT
IPC: C08F4/60
Filed: 1990-05-14
Granted: 2001-02-13
Abstract: A process for preparing a solid catalyst component which comprises halogenating a magnesium compound in the formula MgRR1.nCO2 in which R and R1 are the same or different alkoxy or phenoxy groups and n is a number of from 0 to 2 with a halide of tetravalent titanium in the presence of dialkylester of a dihydric aromatic carboxylic acid and an inert hydrocarbon diluent by reacting at a temperature of from 120 to 136 °C and recovering the solid reaction product from the reaction mixture.
Patent CA-2017619-C (CA)
Title: Use of naftopidil for the therapy of dysuria in cases of benign prostatic hypertrophy
Inventor: SPONER GISBERT
IPC: A61K31/495
Filed: 1990-05-28
Granted: 1995-06-20
Abstract: Naftopidil  the  chemical  name  of  which  is 1-(2-methoxyphenyl)-4-[3-(naphth-1-yloxy)-2-hydroxyl]-piperazine,  or a salt thereof is used in the treatment of dysuria in cases of benign prostatic hypertrophy.
Patent CA-2019712-C (CA)
Title: Method and device for treatment of a fibrous material-fluid mixture
Inventor: KAPPEL JOHANNES
IPC: D21C9/10
Filed: 1990-06-25
Granted: 1997-02-11
Abstract: The invention relates to a method and device for the washing of a medium consistency fibrous slurry, especially a chemical pulp slurry in which the slurry is fed at an inclined angle onto a substantially horizontal portion of circulating  filter belt, and then distributed over substantially the entire working width of the filter belt.          The distributed slurry is then washed with a washing liquid under localized pressure to produce a slurry having a medium consistency range, i.e., about 8 to 15 percent.  In order to increase the consistency to 20 to 40 weight percent, preferably about 30 to about 35 weight percent, the washed slurry is passed to a pressing zone.
Patent CA-2020545-C (CA)
Inventor: ZIMMERMANN JOHN
IPC: B65D5/46
Filed: 1990-07-05
Granted: 1994-10-18
Abstract: ABSTRACT           A divider panel assembly for a carton which has a handle panel and an anchor panel which are interconnected by tear bars is cut to form the tear bars in a manner which will maintain the strength of the handle panel while facilitating the separation of the handle panel and the anchor panel.  The joint between the handle panel and the anchor panel is formed by providing a plurality of cuts at the connection between the handle panel and the anchor panel.  Each joint has first, second and third cuts which are arranged to form tear bars therebetween which are of a greater length than the tear bars previously known so as to facilitate the initial movement of the handle with respect to the anchor panel and the ease with which the tear bars may ultimately be torn.  All of the cuts which form the joining means extend in or below the severance plane.
Patent CA-2023436-C (CA)
Title: Slide control actuated switch incorporating capacitive components
Inventor: CARSON STEVEN R
IPC: H01H9/16
Filed: 1990-08-16
Granted: 1994-10-18
Abstract: SLIDE CONTROL ACTIVATED SWITCH INCORPORATING CAPACITIVE COMPONENTS          Abstract A control switch has an air gap safety lever, a novel slide switch arrangement, and an illuminated ON/OFF control switch. The air gap safety lever is mounted on the control switch so that no power may flow through the circuit until the unit has been installed and the front cover plate mounted.  The illuminated ON/OFF control switch utilizes a light pipe which conveys light from and LED to the ON/OFF button, the light pipe doubling as a mechanical link between the ON/OFF button and a momentary contact switch mounted inside the control switch.          Also, a novel frame is disclosed which secures all mechanical and electrical components of the switch together without the necessity of attaching a housing box, which simplifies test and repair before shipment of the unit from the factory.  The switch controllably inserts a variable capacitance in the circuit, thereby providing a detent indexing slide movement in switch operation.
Patent CA-2024050-C (CA)
Title: Integrated circuit
Inventor: FUKUDA SHINICHI
IPC: G11B15/467
Filed: 1990-08-27
Granted: 1998-06-30
Abstract: An integrated circuit includes a drum phase detection signal generating unit formed by two-stage amplifiers and a comparator, a drum frequency detection signal generating unit similarly formed by two-stage amplifiers and a comparator,  a capstan frequency detection signal generating unit,  and a supply reel frequency detection signal generating unit and a take-up reel frequency detection signal generating unit each formed by a comparator.  From each associated voltage source a predetermined voltage is applied to each of the first stage amplifiers, second stage amplifiers, and to the comparators of the drum phase detection signal generating unit,  drum frequency detection signal generating unit,  capstan frequency detection signal generating unit, supply reel frequency detection signal generating unit, and the take-up reel frequency detection signal generating unit.  In this manner, the drum phase detection signal generating unit, drum frequency detection signal generating unit,  capstan frequency detection signal generating unit, supply reel frequency detection signal generating unit, and the take-up reel frequency detection signal generating unit may be formed on one and the same integrated circuit and can be operated in stable fashion.
Patent CA-2024195-C (CA)
Title: Hollow roller bearing and method of making and mounting same
Inventor: BOWEN WILLARD L
IPC: F16C19/26
Filed: 1990-08-29
Granted: 2000-12-05
Abstract: An improved hollow roller bearing has inner and outer races with the former provided with opposing axially spaced generally radially outwardly projecting shoulders.      Roller bearings, hollow by diameter in the range 55% to 75% are disposed between the shoulders and in loose engagement with the inner and outer races during initial assembly. The bearings are thereafter pressed onto a shaft for preloading and assembly is thus completed. A method for making bearings involves the provision of the bearing as described with a loose assembly of the elements. The mounting method involves the press fitting of the loosely assembled elements on a shaft where upon preloading is achieved.
Patent CA-2024638-C (CA)
Title: Cmos driver circuit
Inventor: DRAKE CHARLES E
IPC: H03K17/04
Filed: 1990-09-05
Granted: 1995-04-25
Abstract: A  CMOS  integrated  circuit  for  driving  capacitance devices is provided.  The circuit has an input node and an output node  and  includes  a first  transistor  operatively connected to the input node which is turned "on" and "off" by the input node to supply an output signal to the output node when turned "on".  A second transistor is provided, the output of which is connected to the output node when turned "on" to supply an output signal thereto.  A control circuit is provided to turn on the first transistor prior to the second transistor, and to turn on the second transistor if and only if the slew rate of the output signal of the first transistor is less or slower than a given value.  With this arrangement,  if there  is a low total capacitance of the capacitance devices being driven, the first transistor will have a fast enough slew rate that it will perform the entire charging function of the devices without turning on the second transistor; however, if the total capacitance of the devices being charged is sufficiently large,  the low slew rate of the first transistor will cause the second transis-tor to be turned on, thereby providing additional charging voltage to the capacitance devices, thus decreasing the time that would be required if only the first transistor were employed for the entire charging.
Patent CA-2025021-C (CA)
Title: Cycloolefin resin compositions
Inventor: SAKAI HIDEKI
IPC: C08L23/00
Filed: 1990-01-12
Granted: 2001-10-16
Abstract: The cycloolefin resin compositions of the present invention comprise a thermoplastic resin containing an olefin polymer having an alicyclic structure, specific stabilizers selected from phenolic stabilizers, organic thioether stabilizers, organic phosphite stabilizers, UV-ray absorbers and hindered amine stabilizers. The cycloolefin resin compositions show excellent thermal aging resistance and weathering resistance by the use of specific stabilizers, and therefore they are favorably used for forming optical instrument parts. Furthermore, the thermoplastic resin may be prepared from an olefin polymer having an alicyclic structure and a flexible polymer or flexible polymers. The incorporation of the flexible polymer especially improves the mechanical strength of the resultant products, and therefore the resin compositions are favorably used for machine parts, electronic parts, automobile parts, etc.
Patent CA-2025824-C (CA)
Title: Gear ring pump for internal-combustion engines and automatic transmissions
Inventor: EISENMANN SIEGFRIED A
IPC: F04C2/08
Filed: 1990-09-20
Granted: 2001-05-15
Abstract: The invention proposes in gear ring pumps for reciprocating internal-combustion engines and/or automatic transmissions allowing the hollow gear to run in the hollow gear housing with a play which is large enough for the pronounced fluctuations of the radial position of the crankshaft or input shaft carrying the pinion of the gear ring pump to be taken up thereby and selecting a toothing for the pump such that the effective mounting of the hollow gear on the pinion is achieved.      If a correspondingly large play is provided between the shaft and the pinion, the hollow gear is mounted with minimum play in the housing. The pinion is then mounted in the hollow gear.
Patent CA-2026023-C (CA)
Title: Bistatic radar seeker with range gating
Inventor: FIDEN WILLIAM H
IPC: G01S13/46
Filed: 1990-09-24
Granted: 1995-05-09
Abstract: A semi-active radar receiver for receiving a sequence of radar pulses and providing radar timing signals in response thereto.  In a most general sense, the semi-active receiver of the present invention includes  a  receiver  10  for  receiving  a  direct transmission of a series of pulses from a radar transmitter 2 and for providing a series of first signal pulses in response thereto. A range gate generator 42 is included for processing the series of first pulses to provide said radar timing signals.  In a more specific embodiment, the receiver includes a filter  40 for processing said received pulses and deriving estimates of the timing of the receipt thereof.  The estimates are then used by the range gate generator 42 to provide said radar timing signals.
Patent CA-2026438-C (CA)
Title: Preparation of vinyl ketones from acetone and paraformaldehyde (ii)
Inventor: PUGACH JOSEPH
IPC: C07C49/217
Filed: 1990-05-23
Granted: 1997-11-18
Abstract: Unsaturated ketones are produced from ketones and paraformaldehyde under mild reaction conditions utilizing a catalyst comprising a halogen acid salt of a secondary amine and a nonsoluble solid oxide of an element selected from Groups IB, IIIA, IVA, IVB, VA, VB, VIB and VIII of the periodic table.  Temperatures of 120-150 and pressure  of 700-1200 kpa are preferred; by-products may include di-unsaturated ketones such as divinyl ketone, Unsaturated ketones such as methyl vinyl ketone are useful in imparting ultraviolet sensitivity to plastics which enhances degradability.
Patent CA-2032680-C (CA)
Title: Image display apparatus
Inventor: MITSUTAKE HIDEAKI
IPC: G02B27/28
Filed: 1990-12-19
Granted: 1994-12-20
Abstract: An image display apparatus has a radiation source, generator for generating an image by modulating a polarized light beam and directing device for directing a light beam from the radiation source toward the generator.  The directing device has a conversion optical system for converting the beam from the radiation source into the polarized light beam.  The conversion optical system has a polarizing beam splitter for splitting the beam from the radiation source into a first and second beams.          In the conversion optical system, a 1/4 wavelength plate and a mirror are arranged so that the plane of polarization of the first beam is rotated to generate a third beam with the plane of polarization same as that of the second beam.  The third beam is directed toward the generator through the polarizing beam splitter while the second beam is also directed toward the generator.
Patent CA-2033276-C (CA)
Title: Apparatus for controlling cd audio player to playback cd-rom
Inventor: KUTARAGI KEN
IPC: G11B7/00
Filed: 1990-12-27
Granted: 2001-04-17
Abstract: A data reproducing apparatus is comprised of a reproducing section for reproducing digital data and whose reproducing state is controlled by a signal transmitted in a wireless fashion to thereby output reproduced data as digital data, and a control section for transmitting a reproducing position information to the reproducing section in a wireless fashion and decoding the digital data from the reproducing section such that, when it is determined that the data is necessary data, the data is stored in the control section, wherein a track number information near the position in which the necessary data is recorded is transmitted from the control section to the reproducing section through a wireless signal to thereby reproduce the necessary data.
Patent CA-2040266-C (CA)
Title: Gravity fed, chain conveyor for grain cart
Inventor: KINZENBAW JON E
IPC: B60P1/38
Filed: 1991-04-11
Granted: 1998-11-17
Abstract: A two-wheeled grain cart adapted for pulling by a tractor includes a downwardly tapered lower hopper section with a discharge aperture and a hydraulically controlled, sliding access door.  A conveyer having a first inlet end and a second discharge end is coupled to an outer side of the grain cart and is movable between a generally horizontal transport/storage position and an upright use position by means of a hydraulic cylinder.  When in the use position, the open inlet end of the conveyer is aligned with and disposed over the hopper discharge aperture for receiving grain under gravity feed and displacing the grain via a chain driven, paddle-type conveyer to its second discharge end for off-loading.  A lower end of the conveyer is coupled via a sprocket drive arrangement to a shaft coupled to a tractor's power take-off (PTO) unit for driving the chain and paddle combination.  A spring-loaded, jaw-type coupler engages as the conveyer is unfolded to the upright position to provide conveyor drive from the tractor's PTO unit.          The conveyor's inlet end is wedged into tight-fitting engagement with the hopper adjacent the discharge aperture to prevent grain loss, while conveyor chain tension is maintained by hydraulic cylinders near its second discharge end.  The conveyer is mounted to the grain cart via a hinge pin and includes a single elongated, rigid, unitary housing for grain transport and conveyor paddle return.
Patent CA-2047164-C (CA)
Title: Adaptive equalizer with channel impulse response estimation
Inventor: USHIROKAWA AKIHISA
IPC: H04L25/03
Filed: 1991-07-16
Granted: 1997-01-07
Abstract: An adaptive equalizer for adaptively equalizing a signal received over a channel on which intersymbol interference occurs. The adaptive equalizer accurately updates the tap coefficients of a transversal filter incorporated therein in a predetermined period of time without fail with no regard to the intersymbol interference on the channel.