baber/WOPTO huggingface dataset:
Patent CA-2008248-A1 (CA)
Title: Electronic range of motion apparatus, for orthosis, prosthesis and cpm machine
Inventor: SINGER ROBERT D
IPC: A61F2/68
Filed: 1990-01-22
Abstract: ABSTRACT     A therapeutic electronic range of motion apparatus includes a remote subsystem for generating motion commands which are transmitted to a local subsystem at an orthosis, prosthesis or CPM machine.  The local subsystem includes a local controller for controlling and monitoring the position, speed, and direction of an actuator which moves an orthotic brace, prosthesis or CPM machine mounting.  The apparatus is programmable enabling a patient to program stopping positions which thereafter are selectable by command.  When the actuator is not in motion the focal controller enters a sleep mode to conserve power.  The controller is automatically awakened when a motion command is received.
Patent CA-2008929-A1 (CA)
Title: Releasing agent for powder molding and process for producing molded article using said releasing agent
Inventor: UEMURA KATSUOKI
IPC: B29C33/64
Filed: 1990-01-30
Abstract: ABSTRACT         The present invention relates to a releasing agent for powder molding, which comprises, as an essential component, a copolymer AB obtained by copolymerizing at least one monomer A represented by the following general formula (I)        (I) (X is a hydrogen atom or a methyl group; k is an integer of 0-5;          ? is an integer of 1-3; m is an integer of 1-3; n is an integer of 0-550; Y is a methyl group or a fluorine atom-containing substituent having 1-20 carbon atoms) and at least one vinyl -polymerizable monomer B copolymerizable with at least one monomer A, and process for producing a molded article using said agent.
Patent CA-2009989-A1 (CA)
Inventor: MORALES VICTOR H
IPC: F16H25/20
Filed: 1990-02-14
Abstract: ANTI-BACKLASH NUT            Abstract An anti-backlash nut having a pair of nut segments, each with an internal threaded bore adapted to receive a threaded bolt.  One nut segment has a portion insertable within the other nut segment and interlocking means are provided to lock the two nut segments together.  A spiral spring acts on both nut segments to bias them away from each other.  The interlocking means permits movement of the two nut segments away from each other to keep the threads of the bores of the two in contact with the threads of the bolt.
Patent CA-2010437-A1 (CA)
Title: Electrostatic force nulling accelerometer
Inventor: MCCLURE WINTHROP H III
IPC: G01P15/125
Filed: 1990-02-20
Abstract: Electrostatic Force Nulling Accelerometer Arrangement and Method Abstract of the Disclosure An accelerometer arrangement includes an acceleration sensor that includes two capacitor plates having respective parallel mutually facing major surfaces which bound a sensing gap therebetween.  A plate-shaped electrically chargeable proof mass is resiliently mounted in the gap in parallelism with the major surfaces for displacement in response to the action of acceleration forces thereon out of a substantially central rest position toward one or the other of the major surfaces depending on the direction of the acceleration forces.  An electrical potential difference is established between the capacitor plates to generate respective electrostatic fields between the capacitor plates and the proof mass which cause a proof mass electrical potential variation having a magnitude and sense depending on the extent and direction of the displacement of the proof mass out of its rest position.  The variation is evaluated and an electrical control signal having a voltage that is proportionate to the variation and sufficient for electrostatic forces caused thereby between the proof mass  and the capacitor plates to return the proof mass to the rest position thereof against the action of the acceleration forces thereon is generated and supplied to the proof mass.            H-1960gc
Patent CA-2010916-A1 (CA)
Title: Circuit protector construction
Inventor: FIERRO JOSEPH
IPC: H01H71/10
Filed: 1990-02-26
Abstract: ABSTRACT OF THE DISCLOSURE     A circuit protector employs molded resinous parts including a base and a support frame structure. Advantageously the circuit protector support frame structure may include a medial plane frame providing space for two circuit protectors, one on each side of the frame and a common back plane mutually perpendicular to the medial frame and the base along one edge of the base.  A cover fits over the support frame and base and snugly accommodates the base at its terminal edges except immediately along the back plane.  The back plane is provided with a slot through the back plane in the vicinity of each pair of contacts which communicates to a space between the cover and the back plane of the base permitting venting of gases generated by arcing.  Grooves are supplied in the medial plane frame and the back plane to accommodate edge flanges of an arc suppressing grid to hold the grid in place to bracket the contacts.  The movable contact in each case is supported on a resilient contact support which is limited in its maximum open position by a stop supported on the back plane or medial plane frame.     The base outside of the housing is provided with pockets which surround on three sides of each of the terminals and insulate them from one another.  In a preferred two circuit protector configuration, one side of each pocket is formed by the base, one by a wall between the terminals for the respective circuit protectors and one by a wall between terminals for the same circuit protector.  A spade terminal is provided which may be adapted to a screw terminal by an L-shaped adapter, one leg of which provides a bracket snugly engaging the spade terminal. A spring detent engages an opening in the spade .. .   .    .    .     terminal to latch the adaptor in place.  The other leg of the L provides a support bracket arranged to be engaged by a retaining groove in an insulating wall and provides threaded means to be engaged by another threaded means.  One of those threaded means is a screw or threaded stud which passes through a hole in a saddle member arranged generally parallel to the support bracket leg of the L-shaped member and has flanges which embrace that support bracket along the opposite edges.
Patent CA-2011788-A1 (CA)
Inventor: MACLENNAN CHARLES D
IPC: B27B33/12
Filed: 1990-03-08
Abstract: Abstract of the Disclosure A circular saw is provided with a disc and tooth holders mounted on the periphery of the disc, with each tooth holder having a pair of legs straddling the disc and fasteners such as a bolt and nut extending through the legs and discs for fastening the holder to the  disc.    A frusto-pyramidal  tooth head having a square outline with four cutting tips is provided on a shank,  and the shank extends through a bore having a tangential axis with the periphery of the disc.  Shoul-ders are provided on the body of the holder for abut-ting the tooth head.
Patent CA-2013615-A1 (CA)
Inventor: COLLES JOSEPH H
IPC: G09G5/14
Filed: 1990-04-02
Abstract: Color index data for a first image and one or more second images is stored in a frame buffer memory and is introduced to an address register of a color palette random access memory. The data from the second images is to be displayed in separate windows on a visual display screen. The palette memory addresses selected by the color index data contain digital information determining the true color to be displayed in each window. Such is introduced to a different range of palette memory addresses. Data from a microprocessor bus indicating the start-stop coordinates of each second image window in coordinate directions is introduced to comparison registers for the palette random access memory. Because windows may overlap, each window is assigned a priority according to the identity of the register containing the start-stop coordinates of the window. These control registers provide, to the palette memory address register, additional address data that is combined with the color index data and introduced to an address decoder that selects the desired palette location. Thus the register data determines the range of palette memory addresses to be selected and the color index data determines the palette location within the range. The true color data in each palette location can be updated at any time by microprocessor data introduced to a slow port. Additional microprocessor data introduced to the control registers can cause a flood color pallet address.to be accessed when the display is within the start and stop coordinates of a given window. This flood color may be used to mask the display of the image in the frame buffer when it is being modified.
Patent CA-2014992-A1 (CA)
Title: Degradationn of polychlorinated biphenyls
Inventor: WILWERDING MICHAEL
IPC: C07C17/38
Filed: 1990-04-20
Abstract: DEGRADATION OF POLYCHLORINATED BIPHENYLS                  ABSTRACT OF THE DISCLOSURE      Polychlorinated biphenyls are chemically degraded by contact with a Lewis acid catalyst in a nonaqueous liquid medium, in the presence of a cation which combines the chlorines on the PCBs to form a solid chloride of the cation which will precipitate out from the liquid medium.  Preferred Lewis Acids are metal halides, particularly a combination of aluminum chloride and ferric chloride, and the preferred cation is potassium in the form of potassium hydroxide.  The process is susceptible to both batch and continuous operation.  The process for chemically degrading PCBs with a Lewis acid catalyst can be applied to PCB-containing soils, sediments and sludges by contacting those materials, under anhydrous conditions, with Lewis acids and preferably with Lewis acids and a metal cation capable of reacting with the hydrohalogen released form the PCBs by the Lewis acids.  The Lewis acids may be supplied to the process by the adventitious corrosion of a vessel containing the PCB-contaminated soil.
Patent CA-2016089-A1 (CA)
Title: Salts of azelastine having improved solubility
Inventor: HETTCHE HELMUT
IPC: A61K31/55
Filed: 1990-05-04
Abstract: The present invention relates to salts of azelastine having improved solubility in water. The salts of the present invention are prepared by reacting azelastine with acetic acid, gluconic acid, lactic acid, or malic acid. The azelastine salts are effective in providing a cytoprotective effect.
Patent CA-2017860-A1 (CA)
Inventor: FLYNN KATHY M
IPC: H05K3/28
Filed: 1990-05-30
Abstract: A photoimageable composition for forming a solder mask has a photopolymerizable acrylate chemical system which renders exposed portions insolvable to alkaline aqueous developers and an epoxy chemical system which hardens the composition after exposure and development. The acrylate chemical system comprises acrylate monomers, epoxy-acrylate oligomers and a photoinitiator. The epoxy chemical system comprises an epoxy resin and a curative therefore. The composition further comprises a cross-linking agent which is reactive with hydroxyl groups of the acrylate and epoxy chemical systems.
Patent CA-2018595-A1 (CA)
Title: Temperature sensing steam wand
IPC: A47J31/44
Filed: 1990-06-08
Abstract: Abstract of the Disclosure A steam wand in an espresso coffee machine which senses the temperature of the liquid being heated by the steam wand and either signals the operator that the predetermined temperature has been reached ox automatically terminates the steaming process when the predetermined temperature is reached.
Patent CA-2019122-A1 (CA)
Title: A heat engine and a method of operating a heat engine
Inventor: SIDAWAY GEORGE
IPC: F02G1/043
Filed: 1990-06-15
Abstract: A heat engine (H) has a heat input means (10) and a work output means (20). A property of a first working substance is cyclically changed in a first subsystem forming a property modulator (1). The property modulator is provided with a work transfer input means (3) and a work transfer output means (4), a heat input means (10), a heat transfer input means (5) and a heat transfer output means (6), the sum of said work transfer input and said work transfer output being equal to zero over a cycle of the heat engine. The property modulator (1) is connected to a second subsystem forming an energy converter (2) wherein said change in the property of the first working substance of the property modulator induces a corresponding change in a property of a second working substance of said energy converter. The energy converter (2) is provided with a heat transfer input means (7) receiving a heat input which is equal in magnitude but opposite in sense to the heat output of said heat transfer output means (6) of the property modulator (1), a heat transfer output means (8) delivering a heat output which is equal in magnitude but opposite in sense to the heat input of the heat transfer input means (5) to the property modulator (1) and means for converting said change in property of said second working substance of the energy converter (2) to work delivered to said work output means (20).
Patent CA-2021302-A1 (CA)
Title: Graft polymer with unsaturated lateral chains, photosensitive mixture containing said graft polymer and recording material produced therefrom
Inventor: MUELLER-HESS WALTRAUD
IPC: G03F7/035
Filed: 1990-07-24
Abstract: Abstract Graft polymer with unsaturated lateral chains photosensitive mixture containing said graft polymer and recording material produced therefrom Disclosed is a photocurable mixture which is suited for the production of printing plates, in particular planographic printing plates, and photoresists. The mixture comprises a graft polymer comprised of a polyurethane as the graft backbone and grafted-on chains containing vinyl alcohol units and units with lateral, polymerizable or cross-linkable double bonds, and a photosensitive compound, such as a photoinitiator or a negative-working diazo compound.            The printing plates prepared from the mixture are distinguished by high photospeed, good developability with aqueous solutions and long print runs.
Patent CA-2022341-A1 (CA)
Title: Retortable composite closure for plastic containers
Inventor: OSIP THOMAS W
IPC: B65D51/14
Filed: 1990-07-31
Abstract: This invention relates to a closure which permits the opening of a hermetically sealed plastic container in a single action motion, which also maintains the hermetic seal under retort conditions. This closure includes a generally cylindrical side wall having threads along the inner surface thereof and a top portion having a metallic disk with its lower surface coated with a fusible coating, such as polypropylene. An annular flange is provided along the inner surface of the side wall to retain the metallic disk between the annular flange and an inwardly inclined inner surface portion of the side wall. A method is also disclosed for providing a hermetic seal on plastic containers using the closure of this invention.
Patent CA-2022577-A1 (CA)
Title: A continent ostomate bandage
Inventor: CASTELLANA FRANK
IPC: A61L24/04
Filed: 1990-08-02
Abstract: A bandage including a superabsorbent pad covered by a porous cover pad placed on a thin, flexible hydrocolloid adhesive layer leaving a portion of the adhesive layer around the pads as an adhesive border is disclosed, One side of the adhesive layer is laminated to a polymeric backing or non-woven fabric layer and a protective cover layer is applied over the pads and border portion.    The protective cover layer may be silicone coated release paper and the bandage may be subjected to a vacuum thus forming the adhesive layer to the pads resulting in the border portion being substantially coplanar with the exposed surface of the cover pad overlaying the superabsorbent pad.
Patent CA-2024662-A1 (CA)
Title: Monolithic series and parallel connected photovoltaic module
Inventor: OSWALD ROBERT
IPC: H01L31/04
Filed: 1990-09-05
Abstract: Abstract of the Disclosure A thin semiconductor device comprising a substrate and a front contact layer disposed on said substrate including a plurality of segments separated by first scribe lines, a plurality of the segments forming a submodule, and at least one of the submodule forming a module.  A bus is provided for interconnecting two or more of the submodules in parallel with each other.  A thin film of a semiconductor material is disposed on the front contact layer and a back contact layer disposed on the thin film of semiconductor material.  The back contact layer is scribed along second scribe lines corresponding to and adjacent the first scribe lines.  An interconnection is provided for interconnecting adjacent areas of the rear and back contact layers.
Patent CA-2025480-A1 (CA)
Title: Bioerodible thermoset elastomers
Inventor: POGANY STEFANO A
IPC: C08G67/00
Filed: 1990-09-17
Abstract: 025/KMlA     TITLE OF THE INVENTION BIOERODIBLE THERMOSET ELASTOMERS            ABSTRACT OF THE DISCLOSURE         Bioerodible, thermoset, covalently crosslinked, elastomeric poly(ortho ester)s are disclosed.  These materials are comprised of polymer chains that are interlocked in a covalent, three dimensional network which imparts dimensional stability.  Use of these thermoset, covalently crosslinked materials as a drug delivery device is also disclosed.
Patent CA-2029202-A1 (CA)
IPC: F16F15/12
Filed: 1990-11-02
Abstract: A torsional vibration damper for a shaft, in which the flywheel ring (1) and the hub (2) are connected by first spring elements (3), distributed uniformly in the circumferential direction, and in which second spring elements (4) of an essentially column-shaped design are provided between the first spring elements (3). The second spring elements are fixed at the one end to the hub (2) and at the other end to the flywheel ring (1), and, when the torsional vibration damper is not rotating, have a radially inwardly projecting curvature (7) in the intermediate zone. The curvature (7) can be eliminated at relatively high rotation speeds of the torsional vibration damper by means of the centrifugal forces acting on the second spring elements, which increases the spring stiffness. 
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Patent CA-2031269-A1 (CA)
Title: Electrophotographic photosensitive element
Inventor: MIZUTA YASUFUMI
IPC: G03G5/06
Filed: 1990-11-30
Abstract: ABSTRACT OF THE DISCLOSURE An  electrophotographic  photosensitive  element comprising an electrically conductive substrate having formed,  first,  a charge transfer layer,  second,  a charge  generating  layer,  and,  third,  a  surface protective layer.  The charge transfer layer contains a butadiene derivative and/or a hydrazone compound. The  charge  generating  layer  contains  a  hydrazone compound as a charge transfer material in addition to a charge generating material.  The charge generating layer is formed by coating the charge transfer layer with an alcoholic solvent in which is dissolved the coating composition of the charge generating layer. The surface protective layer is formed on the surface of the charge generating layer.
Patent CA-2031888-A1 (CA)
Title: Co-polymer production
Inventor: BYROM DAVID
IPC: C12P7/62
Filed: 1990-12-10
Abstract: A microbiological process, and novel bacteria e.g.      Alcaligenes eutrophus NCIMB 40124, for use in such a process. The process enables the more efficient prooduction of copolymers comprising hydroxyvalernate and hydroxybutyrate monomer units.
Patent CA-2032893-A1 (CA)
Title: Battery charger
Inventor: OKADA TETSUYA
IPC: H02J7/00
Filed: 1990-12-20
Abstract: A battery charger charges a discharged battery and can be connected directly to an appliance where it serves as an AC adapter. The output of the battery charger automatically reduces to a trickle maintenance charge as the battery approaches a full charge condition. A      Zener diode, used for overcurrent protection automatically turns off the charging function in the event of an overcurrent condition. The circuit automatically resets when the overcurrent condition is removed. A hinged section, when opened out, provides mounting for a battery to be charged. When the hinged section is closed, switches are operated, and electrical connections are made to permit affixing the charger, as an AC adapter, to the normal battery retainer of the appliance.
Patent CA-2035679-A1 (CA)
Title: Fluid dispenser
Inventor: WINDER DONALD H
IPC: B67D7/02
Filed: 1991-02-05
Abstract: ABSTRACT           A liquid dispenser comprising a receptacle having a circumscribing wall and a base defining a reservoir; a screen transversely mounted in the reservoir to define an upper compartment and a lower compartment, the upper compartment being dimensioned to receive a pouch of liquid; an outlet leading from the lower compartment for discharging liquid from the reservoir; means for piercing a liquid filled pouch upon the pouch being received in the upper compartment whereby upon the pouch being received in the upper compartment, the piercing means punctures the pouch enabling liquid to pass from the pouch into the reservoir and through the screen for discharge from the outlet.
Patent CA-2040312-A1 (CA)
Title: Substituted aromatic sulfonamides as antiglaucoma agents
Inventor: BALDWIN JOHN J
IPC: C07D495/04
Filed: 1991-04-12
Abstract: Thieno[2,3-b]thiopyran-2-sulfonamides and ring homologs with a hydrophilic substituted-alkyl group adjacent to the thiopyran sulfur are carbonic anhydrase inhibitors topically effective in lowering intraocular pressure.
Patent CA-2040432-A1 (CA)
Title: Rope tightening device
Inventor: BOYLAND RUSSELL
IPC: B60P7/08
Filed: 1990-08-30
Abstract: A device (10) to assist manual tightening of a rope passed over a load on a vehicle, In use, the device {10) is first attached to the rope by passing the rope front the upper side of the device (10) through guide (12) to the lower side, then passing the rope up into the tower notch (15) and over the upper side of the device (10) and into the upper notch {14) so that pulling the rope downwardly will secure the device (10) to the rope. Tensioning may then be achieved by forming a loop in a portion of the free end of the rope, passing the loop around a fixed anchorage site on the vehicle and locating a portion of the loop over the pair of arms (16) and (17). The free end of rope is then passed behind and over the portion of rope extending between the pair of arms (16) and (17) and pulled downwardly, thereby urging the rope that extends be-tween the pair of tensioning arms downwardly and causing tension to be applied to the rope. The taut rope is then se-cured by tying the free end thereof to a fixed anchorage site.
Patent CA-2041848-A1 (CA)
Inventor: LEVESQUE MARTIN
IPC: H04N5/217
Filed: 1991-05-06
Abstract: Imaging devices often obtain images of a scene in which portions of the scene are obscured by particles that are interposed between the scene and the camera such as those images obtained when looking through falling snow or through particles stirred up by water currents in an underwater domain. An improved system for reducing the effects of those particles on reconstructed images of a scene consists of obtaining a number of images of a scene and replacing missing elements of the scene, which elements are ones obscured by the particles, with corresponding elements of the scene obtained from previous or following images in which those particular elements of the scene are visible. In this manner, a reconstructed invade of the scene can be obtained in which the effects of the particles on the image is greatly reduced.