baber/WOPTO huggingface dataset:
Patent CA-1328759-C (CA)
Inventor: NG DOMINIC S
IPC: G03G9/12
Filed: 1987-11-02
Granted: 1994-04-26
Abstract: ABSTRACT A stable colored liquid developer comprising an insulating organic liquid dispersion medium having dispersed therein negatively charged marking particles comprising a thermoplastic resin core substantially insoluble in the dispersion medium, an amphipathic copolymeric steric stabilizer irreversibly anchored to the thermoplastic resin core, the steric stabilizer being soluble in the dispersion medium, a colored dye imbibed in the thermoplastic resin core, the dye being soluble in the thermoplastic resin core and insoluble in the dispersion medium and a charge control agent selected from the group consisting of a polybutene succinimide, lecithin, basic barium petroleum sulfonates, and mixtures thereof. This liquid developer may be employed to develop electrostatic latent images either on dielectric paper or on an electroreceptor or photoreceptor substrate and the resulting toner image may be transferred to another surface by tape transfer.
Patent CA-1294925-C (CA)
Title: Support log for shipping sheet material
Inventor: SALISBURY JOHN W
IPC: B65D85/48
Filed: 1987-11-12
Granted: 1992-01-28
Abstract: ABSTRACT        A shipping log for supporting a plurality of sheet members such as automotive lites.   The shipping log has a plurality of vertical slots to maintain the sheet members in a spaced apart vertical alignment and a resilient formable strip extending across a plurality of grooves and deformable into the grooves under the weight of the sheet members to prevent longitudinal displacement of the sheet members.
Patent CA-1295043-C (CA)
Title: Method for acoustic reverberation removal
Inventor: HUTCHENS CHRISWELL G
IPC: G01V1/46
Filed: 1987-12-15
Granted: 1992-01-28
Abstract: ABSTRACT OF THE DISCLOSURE Disclosed herein are methods for canceling acoustic reverberations caused when acoustic energy imp-inges a medium.  In one method, a series of positive pulses of acoustic energy are transmitted and the ampli-tudes of the resulting acoustic reverberations are meas-ured.  Negative pulses of acoustic energy are then trans-mitted having amplitudes equal to the immediately preceding received acoustic reverberation and at a time later than the positive pulses so that the acoustic rever-berations are driven to a null.
Patent CA-1290209-C (CA)
Title: Therapeutic exercise equipment for the handicapped
Inventor: BERGERON TIMOTHY J
IPC: A63B71/00
Filed: 1988-01-19
Granted: 1991-10-08
Abstract: Abstract of the Disclosure Therapeutic exercise apparatus capable of being used by a physical therapist to initiate a number of different postural and equilibrium reactions in the body of a handicapped child with the goal of enhancing the child's ability to maintain balance and proper posture is disclosed.  The apparatus consists of a hemisphere having a substantially rigid interior shell surrounded by a molded foam exterior.  One end of the hemisphere is substantially flat and the other end is rounded.  A removable cover located at the substan-tially flat end allows access to a hollow internal chamber within the hemisphere.  One side of the removable cover is substantially flat and the other side has wheels secured thereto such that the cover may be separately used as a scooter.  The cover is selectively attachable to the hemisphere on either side, the opposite side forming a portion of the substantially flat end such that the hemisphere may include wheels at its substantially flat end.  A leg is also provided capable of detachable engagement with the cover so as to form a T-stand.
Patent CA-1304435-C (CA)
Title: Electrical switching device
Inventor: VALDEMARSSON STEFAN
IPC: H01H9/46
Filed: 1988-03-24
Granted: 1992-06-30
Abstract: ABSTRACT          The switching device has a fixed contact which cooperates with a movable contact secured to a movable contact carrier.  The contacts are connected to runner rails for the arc that is created upon the contact opening.  The runner rail connected to the movable contact consists of a movable commutating con-ductor which, during the initial stage of the contact opening, is at least approximately stationary, and then moves together with the movable contact to the open position Or the switching device
Patent CA-1300847-C (CA)
Title: Corner-connections for uniting two mitre-cut hollow-chamber sections
Inventor: BUDICH WOLFGANG
IPC: E06B3/96
Filed: 1988-04-12
Granted: 1992-05-19
Abstract: ABSTRACT OF THE DISCLOSURE          A corner joint for connecting two mitred hollow chamber profiles by welding,  wherein the outer contour of the corner joint is adapted to match the inner contour of the (one of the) hollow chamber(s) of the hollow chamber profile in such a manner that` the corner joint can be fully or partially inserted into the hollow chamber.  The corner joint is made at least substantially of plastics material which can be welded and the corner joint has a mitred surface designed as a welding surface.  The corner joint has a cylindrical or conical bore which extends over the entire length of the corner joint and is connected with expansion slots arranged at the end opposite the mitred surface.  The corner joint has an expanding dowel, expanding wedge or the like,  which is expanded by tightening a screw or the like inserted in the bore and/or by axial displacement effects an expansion of the end of the corner joint opposiste the mitred surface, the head of the screw or the like being completely countersunk in the bore.
Patent CA-1315829-C (CA)
Title: Tooth for a digging bucket of an excavator
Inventor: SCHADOV MIKHAIL I
IPC: E21C35/18
Filed: 1988-06-21
Granted: 1993-04-06
Abstract: Abstract A tooth for a digging bucket of an excavator has a wedge-like profile formed by an end face and two surfaces extend-ing at an angle with respect to each other, one of which is undulated with at least two convex portions conjugated by a concave portion. The profile of the undulated surface in the concave portion is in the form of brachistochrone. A groove is made in the end face of the tooth to extend width-wise of the tooth.
Patent CA-1321722-C (CA)
Title: Optical fibre cables
Inventor: DAVEY RODNEY J
IPC: G02B6/44
Filed: 1988-06-22
Granted: 1993-08-31
Abstract: ABSTRACT                   Optical Fibre Cables An optical fibre cable comprises an inner sheath (3) containing at least one optical fibre member (1,2), and an outer sheath (5) containing the inner sheath (3).          The inner sheath (3) is of a material which is soft and has a low modulus of elasticity.   The outer sheath (5) of a material having bulk properties, such as density and stiffness,  and  surface  properties,  such  as  surface texture and friction such that the cable can be propelled along a duct by a flow of air travelling along the duct.     An intermediate sheath (4) may be provided between the inner and outer sheaths (3, 5).
Patent CA-1309315-C (CA)
Title: Compositions and process for metal treatment
Inventor: NGO TOAN M
IPC: C23C22/80
Filed: 1988-07-13
Granted: 1992-10-27
Abstract: COMPOSITIONS AND PROCESS FOR METAL TREATMENT                   ABSTRACT Compositions and process for activating metal surfaces prior to coating with zinc phosphate are disclosed.  A Jernstedt salt concentrate is provided which can be employed to prepare Jernstedt salt baths of the type desired by combining the concentrate with additional alkali metal phosphate. Improved activation of metal surfaces are achieved by incorporating a chloride ion producing compound in the activating bath.
Patent CA-1304739-C (CA)
Title: Monoethylenically unsaturated compounds and their polymers
Inventor: HATTON KEVIN B
IPC: C08F20/26
Filed: 1988-08-03
Granted: 1992-07-07
Abstract: K-16619/1+2/=/ARL 384 ABSTRACT OF THE DISCLOSURE      Monoethylenically unsaturated compounds whose polymers are useful as polymeric photoinitiators are of formula Ar1COC(R1)(R2)R3 where R1 is C1-C10 alkyl or alkoxy, R2 is C1-C10alkyl, -X-O-R4-OCOC(R5)=CH2 (II)  -X-NH-R6-OCOC(R5)=CH2 (III), or -CH2[OCH2CH(OH)CH2]aOCOC(R5)=CH2 (IIIA) or R1 and R2, together with the attached carbon, denote C4-C8 cycloalkyl, R3 is a C6-C20 aromatic group, OH, tert.amino, -OCOC(R5)=CH2 (VI) or -OCH2CH(OH)CH2OCOC(R5)=CH2 (VIA), R4 is C1-C4 alkylene, which may be substituted by -OH or by C2-C20 acyloxy, R5 is H or C1-C4 alkyl, R6 is C1 to C4  alkylene, X is a group of formula R7CO- or               V   where R7 is C1-C4 alkylened R8 is C1 to C4 alkyl, and is 0 or 1, Ar1 is a C6-C20 aromatic group, with the provisos that (i) R2, R3 or Ar1 contains a group (VI), (ii) where R1 and R2 together with the attached carbon atom denote cycloalkyl, R3 is -OH, tert.amino or a group VI or VIA (iii) when R2 is a group II, a is O,, (iv) when R2 is a group III a is 1, (v) when R2 denotes a group IIIA, R3 denotes said monovalent aromatic group (vi) when R3 denotes a group VI, R1 and R2 together with the attached carbon denote C4-C8 cycloalkyl, (vii) when Ar1 contains a group VI R1 is -CH3 and R3 is -OH, R2 is C2-C10 alkyl, and (viii) when Ar1 contains a group VI, R1 and R2 are each alkyl and R3 is -OH, the group VI is linked to an aromatic C atom in Ar1 through a group -YR10OR9-  or -YR10OCONHR6-, Y being attached to an aromatic C atom, where Y is 0 or S, R9 is 2-hydroxypropylene or 2-(C2-C20 acyloxy)-propylene and R10  is C1-C4  alkylene.
Patent CA-1327146-C (CA)
Inventor: AUHORN WERNER
IPC: D21H19/58
Filed: 1988-09-08
Granted: 1994-02-22
Abstract: Abstract of the Disclosure:  The printability of paper is improved by applying an aqueous coating agent consist-ing of a) 100 parts by weight of a finely divided pigment, b) from 5 to 70 parts by weight, based on solids, of a cationic aqueous polymer dispersion of a paper size and c) from 0.01 to 10 parts by weight of a surfactant which interferes with the formation of the surface size and/ or of a polymeric dispersant in an amount of from 0.5 to 4 g/m2 to one or both surfaces of the paper and drying the coated paper.
Patent CA-1302838-C (CA)
Title: Fluid mixing device, in particular hot and cold water mixing device
Inventor: GRABER HEINZ
IPC: F16K11/074
Filed: 1988-09-29
Granted: 1992-06-09
Abstract: Attorney's Docket No. 7944 INVENTOR: HEINZ GRABER            INVENTION: FLUID MIXING DEVICE, IN PARTICULAR HOT AND COLD            WATER MIXING DEVICE     ABSTRACT OF THE DISCLOSURE           The hot and cold water mixing device contains a rotary slide which controls in opposite sense the inflow of cold and hot water.  The rotary slide is provided with a device for suppressing the flow of hot and cold water through the rotary slide.  In order to render the mixing valve smooth in operation and to simplify its construction, without eliminating the advantages of such construction of mixing device, the flow suppressing device is formed by a closure portion or element of a servo valve, and the rotary slide is structured to serve as a seat for such closure portion or element.
Patent CA-1340304-C (CA)
Inventor: BLANCHARD GILBERT
IPC: B01J37/02
Filed: 1988-10-20
Granted: 1999-01-05
Abstract: La présente invention concerne un catalyseur pour le traitement des gaz d'échappement des moteurs à combustion interne et un procédé de fabrication de celui-ci.   Le catalyseur de l'invention comprend un support monolithique dont la surface est imprégnée par une phase catalytiquement active.   Ce catalyseur comprend sur une partie de sa longueur à partir d'une de ses extrémités une première phase catalytiquement active,  et sur l'autre partie de sa longueur, une seconde phase catalytiquement active.  Ces catalyseurs présentent une stabilité améliorée de l'activité au cours du temps.   Ils sont notamment utiles dans le domaine de la post-combustion automobile.
Patent CA-1331018-C (CA)
Title: Fluoro-containing compounds based on 4,4'-bis [2-(4-hydroxyphenyl)hexafluoroisopropyl]diphenylether, processes for their preparation and their use
Inventor: LAU JUERGEN
IPC: C08G73/10
Filed: 1988-11-23
Granted: 1994-07-26
Abstract: Abstract Fluoro-containing  compounds  based  on  4,4'-bis[2-(4-hydroxyphenyl)hexafluoroisopropyl]diphenyl ether,  pro-cesees for their preparation and their use Compounds of the formula            (I) in which A represents the radicals              or      in which R1 and R2 are different from one another and denote hydrogen, -NO2 or -NH2, R3 is hydrogen or halogen, represents -NO2 or -NH2, with the proviso that R1 is hydrogen, if R2 is -NO2 or -NH2 and R2 is hydrogen, if R1 is -NO2 or -NH2.          The compounds are prepared from 4,4'-bis[2-(4-hydroxy-phenyl)hexafluoroisopropyl]diphenyl ether by nitration or reaction with nitrobenzenes followed by reduction of the nitro groups.  They are used for the preparation of high-temperature-resistant polycondensates.
Patent CA-1319842-C (CA)
Title: Apparatus and methods for measuring pulsatile blood process stream pressure
Inventor: BENJAMIN GRANT S
IPC: A61B5/0215
Filed: 1988-11-24
Granted: 1993-07-06
Abstract: APPARATUS AND METHODS FOR MEASURING       PULSATING BLOOD PROCESS STREAM PRESSURE                 ABSTRACT OF THE DISCLOSURE     A positive gauge blood pressure signal is transmitted to a gas column from a pulsatile blood flow stream hydrostatically higher than the pressure transducer.  Particularly, a first conduit having a predetermined internal diameter smaller than a second conduit is connected at one end to the blood flow stream.  The first conduit extends to a turnaround below the pressure transducer and is connected to the second conduit.  The opposite end of the second conduit connects with the pressure transducer.  The small internal diameter of the first conduit maintains the meniscus of the blood intact notwithstanding the pulsatile blood stream.
Patent CA-1323072-C (CA)
Inventor: BACH STANLEY M JR
IPC: A61N1/39
Filed: 1989-01-10
Granted: 1993-10-12
Abstract: ABSTRACT OF THE DISCLOSURE           A circuit for generating a biphasic voltage pulse to restore rhythm to a fibrillating heart, the circuit utilizing a capacitor for providing the voltage pulse.  The circuit further comprises first and second thyristors to regulate the voltage and first and second electrodes to apply the regulated voltage to the fibrillating heart.  The circuit further comprises an output sensing circuit that senses the exponential decay of the capacitor and signals a control circuit to switch the thyristors such that after one thyristor applies the voltage pulse to the heart in a first polarity, the other thyristor applies the voltage pulse in the opposite polarity.  Therefore, substantially all energy in the capacitor is provided to the heart.
Patent CA-1333123-C (CA)
Inventor: SHAINFELD ODED
IPC: A47C17/175
Filed: 1989-01-19
Granted: 1994-11-22
Abstract: A piece of furniture which can serve as a bed and alternatively as a so called "relaxation chair" comprises a chassis on which is carried a structure consisting of a number of hingedly     interconnected parts: a back and head rest, a seat and a leg support. The said structure is hingedly connected to the chassis.
Patent CA-1310447-C (CA)
Title: Frameless face protector
Inventor: OLIM MARVIN J
IPC: A61F9/02
Filed: 1989-02-28
Granted: 1992-11-24
Abstract: ABSTRACT               FRAMELESS FACE PROTECTOR      The face protector comprises a flexible headband and a transparent flexible shield of sufficient size to protect the face of the wearer.  The shield is sufficiently flexible and easily deformable so as to adapt to the shape of a user's  head.   Fastener means carried by the headband reusably and deftly attaching the band around the head of the wearer and also reusably and deftly attaching the headband are attached to lateral positions on the headband, and  the  fastener means  on the shield are detachably suspended from the fastener means on the headband at these positions.
Patent CA-1304037-C (CA)
Title: Adjustable width chain conveyor
Inventor: ZEMEK ALBERT W
IPC: B65G21/22
Filed: 1989-04-14
Granted: 1992-06-23
Abstract: An adjustable width chain conveyor is disclosed. The conveyor includes angled supports having inclined slide portions on which the chain can slide inwardly or outwardly to accommodate variations in the effective width of products or to compensate for misalignment of conveyor components as the conveyor wears, beyond the tolerance permitted by the product support surface area. A cover is provided to prevent the chain from tipping off of the conveyor.
Patent CA-1329683-C (CA)
Inventor: LOWRY PETER M
IPC: D21H17/44
Filed: 1989-04-21
Granted: 1994-05-24
Abstract: Abstract Processes for the Production of Paper and Paper Board The use of very high molecular weight polymers which are substantially completely water soluble as flocculants in paper making improves drainage time without adversely affecting formation, even when used in high shear processes.
Patent CA-1333274-C (CA)
Inventor: HRABAL HANS
IPC: F16K15/08
Filed: 1989-05-30
Granted: 1994-11-29
Abstract: The valve plate     which is spring-loaded against the valve seat of the ring valve comprises individual annular plates disposed over the passage channels     of the valve seat, plus a support plate      which lies jointly on all the annular plates on that side thereof facing away from the valve seat   and transfers the force of the spring elements      which act on it. The annular plates      can be bevelled both on the sides facing the valve seat     and on the sides facing away from the valve seat    .  With their bevelled side facing the valve seat     they engage in funnel-shaped enlargements in the valve seat     and cooperate with sealing seats
Patent CA-1318647-C (CA)
Title: Caging system
Inventor: ALLEN TERRY S
IPC: G01C21/18
Filed: 1989-07-04
Granted: 1993-06-01
Abstract: ABSTRACT OF THE DISCLOSURE         A caging system is used in a magnetic platform which is mounted on a pointing system on a spacecraft.  The magnetic platform  supports  a  payload,  and  provides  a  frictionless support  in  all  conditions.    The  caging  system  clamp   the payload  in  a  caged  condition  and  provides  a  frictionless support in an uncaged condition.  The caging system includes a plurality of caging actuators.   Each caging actuator has an upper support structure which connects to a snubber member, and has a lower support structure which connects to a first ring and to a coaxial second ring for clamping the snubber member.          A cylindrical cam member has a plurality of groove surfaces and the first and second rings respectively have a plurality of cam followers.   Clockwise  rotation of the cam member urges the rings  together.    Counterclockwise  rotation  urges  the  rings apart.   A second, auxiliary caging actuator is provided.  The second caging actuator  is disposed radially inwardly of the first caging actuator, and includes third and fourth rings for clamping the snubber member.  Manually operated gear means, and a backup motor, are provided for operating the third and fourth rings.
Patent CA-1336737-C (CA)
Inventor: KRIEG MANFRED
IPC: C08K3/00
Filed: 1989-08-04
Granted: 1995-08-15
Abstract: Rigid  foamed  polymethacrylimide  synthetic  resins containing from 0.1 to 10 percent by weight of electrically conductive particles such as conductive carbon black exhibit improved properties when used in rapidly flowing streams of gases, are particularly suitable for use as a core material in laminates for aircraft construction, and are prepared by heating a copolymer of methacrylic acid and methacrylonitrile containing a blowing agent and conductive particles.
Patent CA-1324591-C (CA)
Inventor: VISAISOUK SOMYONG
IPC: F25C5/04
Filed: 1989-09-12
Granted: 1993-11-23
Abstract: Apparatus for preparing, classifying, and metering particle media useful for various purposes including blast cleaning and treating systems includes an impeller for taking a media input having a working particle size range and sending the media particles along with a fluidizing air input through a scroll, as well as a classifier/surge tank acting as a cyclone separator connected to the fluidized particle/air stream output of the scroll. An eductor nozzle assembly is provided for taking the lighter portions of the particles from the cyclone separator and transporting this to recovery or utilization whilst a metering device takes the heavier portions of the particles from the cyclone separator and transports this to a utilization device or recovery. There is also provided apparatus for taking the lighter or heavier portion of the particles from the cyclone separator in a controlled manner, and for taking the metered particle stream and providing along with a pressurized air input, a fluidized air/particle output in a controlled manner such that the air/particle ratios are controlled and the particles are in a steady or pulsed flow as desired.
Patent CA-1332667-C (CA)
Inventor: TERRY CHARLES J
IPC: C01B32/949
Filed: 1989-09-28
Granted: 1994-10-25
Abstract: ABSTRACT OF DISCLOSURE         A molten blend of an alkali metal halide containing tungsten is treated with solid particulate carbonaceous reactants, such as natural flake graphite.  Tungsten monocarbide is produced having a large percentage of relatively coarse crystals.  The crystal morphology is blocky or thick bladed with some equant forms and the carbon is present in the correct stoichiometric amount of 6.13% by weight, thus eliminating any need for carbon additions prior to sintering.
Patent CA-1320891-C (CA)
Title: Steerable dilatation catheter
Inventor: TREMULIS WILLIAM S
IPC: A61M25/00
Filed: 1989-09-29
Granted: 1993-08-03
Abstract: STEERABLE DILATATION CATHETER                  ABSTRACT OF THE DISCLOSURE       A  low-profile  steerable  dilatation  catheter  for angioplasty procedures which has an inflated balloon on the distal end with little or no tendency to wrap on itself when the catheter is advanced through a patient's vascular system. The catheter comprises an elongated tubular member which is longitudinally   relatively   flexible   but   diametrically relatively rigid, a guide extension secured to the distal end of the elongated tubular member, and an inflatable balloon secured on the proximal end thereof to the distal end of the elongated tubular member and on the distal end directly or indirectly to the guide member or the tubular member and an elongated flexible member such as a helical coil secured to the guide extension distally of the balloon.  The elongated tubular member is preferably a hypotube of stainless steel or nitinol.
Patent CA-1328354-C (CA)
Inventor: FRISK KENNETH A A
IPC: A01D57/30
Filed: 1991-11-07
Granted: 1994-04-12
Abstract: PULL TYPE SWATHER          ABSTRACT OF THE DISCLOSURE         A pull type swather having double swath and enhanced operating to transport mode change capabilities. A subframe is mounted forwardly of a rear frame and the two are pivotally connected. The table of the swather includes a pair of draper decks operable to be independently moved relative to each other and to the table. A hitch is pivotally connected to the subframe and a hydraulic cylinder is operable to adjust the angle of the hitch relative to the table. The subframe is locked to the rear frame during operation and until the transport mode is desired wherein the subframe is unlocked and pivoted relative to the rear frame. Provision is made for automatically interchanging between the transport and operating modes.