baber/WOPTO huggingface dataset:
Patent CA-2008151-C (CA)
Title: Subterranean well anchoring apparatus
Inventor: BAUGH JOHN L
IPC: E21B23/01
Filed: 1990-01-19
Granted: 1996-07-30
Abstract: The present invention provides an apparatus for anchoring of equipment within the interior bore of a section of a subterranean well conduit, and particularly for insertion of such equipment.  The apparatus comprises a cylindrical housing and a conically tapered surface around the exterior of the housing which is radially larger at its upper end and tapered to a radially smaller lower end.  A seal body is provided which is carried exteriorly around the housing and has its interior tapered end reverse to that of the conically tapered surface around the housing and which is selectively longitudinally movable relative to the housing from a first, unset position on the conduit section to a second, set position on the conduit section and radially expandable during the movement relative to the housing.  Anchoring means are carried exteriorly around the body for securing the apparatus to the conduit section against upward and downward movement of the apparatus.  A bi-directional anchoring system is provided such that force received on or through either end of the apparatus drives the apparatus into further anchoring engagement with the conduit section.  A metal-to-metal primary and elastomeric secondary seal system are provided on the apparatus with the secondary elastomeric seal having zero extrusion and slip body having a ductility of from between about 1% and about 15%.
Patent CA-2012582-C (CA)
Title: Alitame stability in chewing gum by encapsulation
Inventor: YATKA ROBERT J
IPC: A23G4/10
Filed: 1990-03-20
Granted: 1995-08-08
Abstract: Chewing gums incorporating Alitame in a manner to delay its release, separate the Alitame from gum ingredients which cause the Alitame to degrade, or both, are disclosed.  The Alitame may be coated by an encapsulating agent applied by spray drying, fluid bed coating, fiber spinning or coaservation techniques, agglomeration, and fixation or entrapment/absorption plus encapsulation or agglomeration.  Also, the Alitame may be incorporated in a physically separate part of the gum, such as a center fill, a part of a rolling compound, or a part of a panning composition.
Patent CA-2013876-C (CA)
Title: Inker marker
Inventor: FINK CAMERON
IPC: B41K1/02
Filed: 1990-04-04
Granted: 1993-08-24
Abstract: ABSTRACT OF THE DISCLOSURE          A self inking stamp is provided for use in making an image on paper.  The stamp comprises a body having a base including portions lying in a plane for engagement with a flat piece of paper, and a marker having a self inking indicia.  The maker is movable relative to the base generally at right angles to the aforementioned plane, and a coupling is provided attaching the marker to the base at a location spaced from the marker generally parallel to the plane.  The coupling permits movement of the marker to a stored position inside the body and spaced from the plane, and an inking position with the marker in engagement with the paper.
Patent CA-2023890-C (CA)
Inventor: MINNIS ALAN JAMES
IPC: H01R12/70
Filed: 1990-08-23
Granted: 2000-12-12
Abstract: A connector assembly has a first connector housing and a second connector housing. The first connector housing has terminals which extend from a first end thereof to a second end. The terminals have first cable receiving slots and second cable receiving slots provided at opposed ends thereof. The second connector housing cooperates with a prepared end of a cable, to maintain the cable in alignment with the housing. In use, the first and second connector housings are mated together as the assembly is transported. This insures that the terminals and cable will be protected from the harsh environment into which they are exposed. The configuration of the second cable receiving slots insures that the first and second connectors can be mated and unmated over numerous cycles without damaging the terminals or the cable.
Patent CA-2035844-C (CA)
Title: Analytical development and verification of control-intensive systems
Inventor: HAR EL ZVI
IPC: G06F17/50
Filed: 1991-02-06
Granted: 1995-05-16
Abstract: Designs are created through a high-level to low-level transformation in the form of a formal top-down development procedure based upon successive refinement. Starting with a high-level (abstract) model, such as a formal abstraction of a protocol standard, successively more detailed models are created through successive refinement, in a fashion which guarantees that properties verified at one level of abstraction hold in all successive levels of abstraction. The successive refinements end with a low-level "model" which forms the ultimate implementationof the protocol. In one embodiment of this invention, the analysis/development apparatus creates a unique C language code representation of the specified system that is guaranteed to carry out the tasks specified when executed in a stored program controlled machine. In another embodiment, the code is used to create a "net list" for manufacturing the specified system.
Patent CA-2036571-C (CA)
Title: Machine and method for separating out fines, pins and over-thick wood chips
Inventor: ARTIANO ADRIAN
IPC: B27L/
Filed: 1991-02-19
Granted: 1994-12-20
Abstract: Abstract of the Disclosure Fines, pins, and over-thick wood chips are separated from wood chip material by using a series of three roller screens having chip agitating and conveying protuberances. The screens are arranged and adapted such that over-thick chips are separated by the first screen, fines are separated by the second screen,  and pins are separated by the third screen.
Patent CA-2041234-C (CA)
Title: Series arc high voltage breaker
Inventor: DUFOURNET DENIS
IPC: H01H33/91
Filed: 1991-04-25
Granted: 1994-11-22
Abstract: Arc-blasting dielectric gas high-voltage circuit breaker of the type including secondary arc contacts (25, 26) making it possible to develop, inside a volume (V2), a pressure promoting opening, characterised in that all the electrical contacts (13, 22) are arranged outside the said volume. 
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Patent CA-2042028-C (CA)
Title: Method and device for performing an approximate arithmetical division
Inventor: ANDRE TORE MIKAEL
IPC: G06F7/535
Filed: 1990-09-10
Granted: 2000-03-21
Abstract: A method and a device for performing an approximate division of a constant number by a variable number in binary form. The variable number is presumed to consist of a character bit and a plurality of bits which state the absolute value of the number. The number is converted by first forming a digital word, by substituting with logic zeroes any logic ones that have a lower significance than the most significant logic one of the bits. There is then formed a new number in binary form, by reading the character bit of the variable number as a character bit and by reading the bits in the digital word in a reversed order. The device may mainly comprise a single gate network.
Patent CA-2044387-C (CA)
Title: Continuous production of polycaprolactam having a regulated amino end group content
Inventor: MATTHIES PAUL
IPC: C08G69/16
Filed: 1991-06-12
Granted: 2001-11-20
Abstract: Polycaprolactam having a regulated amino end group content is produced in a continuous process in which caprolactam is polymerized at 240-290°C in the presence of water as initiator and in the presence of a dicarboxylic acid as chain regulator by polymerizing caprolactam in a single stage in the presence of from 0.3 to 5% by weight of water and from 0.1 to 0.6% by weight of terephthalic acid and/or iso-phthalic acid, each percentage being based on capro-lactam, at a uniform pressure through the entire poly-merization time of from 1.0 to 1.9 bar, measured in the vapor phase above the polymerization zone, while main-taining a water content of from 0.1 to 0.5% by weight, until the sum total of the amino and carboxyl end group contents is from 115 to 150 meq/kg, with the proviso that the amino end group content does not drop below 25 meq/kg, measured on extracted polycaprolactam.
Patent CA-2044657-C (CA)
Title: Pallet container
Inventor: SCHUETZ UDO
IPC: B65D21/00
Filed: 1991-06-14
Granted: 1994-12-27
Abstract: The pallet container (1), which was developed with the objective of simplifying the fastening method of the lid in com-parison to known containers and which has an inner container (2) of plastic and a sheet-metal jacket (3) tightly abutting this container, this jacket being fastened to a flat pallet (16), is characterized therein that the upper edge of the sheet-metal jacket (3) is designed as a triple folded edge (14) to which the lid (4) is screwed.
Patent CA-2048499-C (CA)
Title: Magneto-optical recording device
Inventor: TAKAHASHI AKIRA
IPC: G11B5/02
Filed: 1991-08-06
Granted: 1999-11-09
Abstract: A magneto-optical recording device having a light source and external magnetic field applying apparatus, which records information on a magneto-optical recording medium with a magnetic field modulation method. The device has a controller which stops the irradiation of a light beam when switching the direction of applying external magnetic field during recording.      This allows an area where information is recorded with a low external magnetic field to be smaller, and thereby achieving a reproduced signal of improved quality.
Patent CA-2049082-C (CA)
Title: Flow-control valve especially for gasified liquids
Inventor: PEGLOW BRINGFRIED
IPC: G05D7/01
Filed: 1991-08-13
Granted: 1997-10-14
Abstract: A flow-control valve especially for gasified liquids, for dispensing portions of carbonated water from a storage container  for  mixing  with beverage  concentrates  in  a beverage-vending machine comprises  a valve housing,  the interior of which broadens from an inlet opening to a chamber in which a membrane with an orifice is arranged orthogonally to the direction of the inflowing water.  Water flowing into the chamber passes through the orifice in the membrane and displaces the latter toward a pin which is arranged on the opposite side of the membrane to the inlet opening adjacent to the orifice.
Patent CA-2051134-C (CA)
Title: Dishwasher with fill water control
Inventor: HALL JON D SR
IPC: A47L15/42
Filed: 1991-09-11
Granted: 2002-01-29
Abstract: A glass washer has a cabinet enclosing a water reservoir having a drain, a water inlet, a spray box, a motor driven rotary tray above the spray box, and a pump for causing water flow through the spray box to spray the contents of the tray. A control senses incoming water temperature and holds the drain open until the water temperature reaches a predetermined level and then closes the drain.
Patent CA-2052178-C (CA)
Inventor: IQBAL MOHAMMAD
IPC: C08L71/02
Filed: 1991-09-24
Granted: 2002-03-05
Abstract: This invention relates to transparent materials that are capable of absorbing liquids, and, more particularly, to materials that can be used as ink-receptive layers for transparent imageable materials. Transparent materials that are capable of absorbing significant quantities of liquid, while maintaining some degree of durability and transparency, are useful in contact lenses, priming layers for coatings coated out of aqueous solutions, fog-resistant coatings, and transparent imageable materials for use with mechanized ink depositing devices, such as pen plotters and ink-jet printers. Compositions useful as transparent liquid absorbent materials have been formed by blending a liquid-insoluble polymeric material with a liquid-soluble polymeric material. A problem that frequently arises in the formulation of polymer blends is the incompatibility of the polymers being blended. When attempts are made to blend polymers that are incompatible, phase separation occurs, resulting in haze, lack of transparency, and other forms of inhomogeneity. This invention provides semi-interpenetrating polymeric networks comprising a blend of hydrophilic and hydrophobic polymers wherein at least one of the polymeric components is crosslinked after blending to form a continuous network throughout the bulk of the material, and through which the uncrosslinked polymeric components are intertwined in such a way as to form a macroscopically homogeneous composition. The integrity of such networks persists even after absorption of solvent.      These materials can be used to form durable, non-tacky, ink-absorbent, transparent coatings for graphical materials.
Patent CA-2054629-C (CA)
Title: Pharmaceutical composition
Inventor: ASAKURA SOTOO
IPC: A61K31/351
Filed: 1991-10-31
Granted: 2002-04-16
Abstract: A pharmaceutical emulsion composition or solution composition in an organic solvent containing a compound represented by the following chemical formula and having immunosuppressive activity is disclosed: (See formula I)
Patent CA-2063632-C (CA)
Title: Louvre shutter device with variable slats
Inventor: DIGIANNI MICHELE
IPC: E06B7/086
Filed: 1992-03-20
Granted: 1998-08-04
Abstract: A louvre shutter or door, of a type having a rectangular frame work, consisting of side frames and top and bottom frames, and slats extending from side to side and hollow extrusions forming the side frames, defining inner walls and outer walls, and side walls pivots at each end of the slats, recesses in the inner walls the side frames, with pivot of the slats extending through respective recesses, gears secured to the pivots extending through recesses in one of the side frames, and, a rack interconnecting the gears so that movement of one of the slats, will be transmitted to all of the slats.  Also disclosed is a louvre shutter for a fanlight with wedge shaped slats, having a variable profile.
Patent CA-2067713-C (CA)
Title: Pressure control for improved gas dehydration in systems which employ membrane dryers in intermittent service
Inventor: RICE ARTHUR WILLIAM
IPC: B01D53/26
Filed: 1992-04-30
Granted: 1998-06-16
Abstract: An apparatus and process for dehumidification of a compressed gas using a membrane cartridge dryer wherein substantially dry gas is provided upon process startup without requiring purging of the membrane cartridge. In the apparatus, a back pressure regulator valve controls the release of compressed gas to the dryer and a check valve controls the release of the dry gas from the dryer.
Patent CA-2069524-C (CA)
Title: Technique for providing improved signal integrity on computer systems interface buses
Inventor: BENHAM JOHN R
IPC: G06F13/40
Filed: 1992-05-26
Granted: 1997-02-11
Abstract: An interface system for transmitting a pulse waveform signal between a host computer and a plurality of peripheral units wherein such signal is transmitted on a dedicated bus, the peripheral units being connected to the bus in selected groups thereof.  Each group has a buffer unit connected between the group of units and the host unit, the buffer unit including circuitry for providing signal transmission in only one direction, for controlling the final signal level of the signal, and for controlling the slope of the trailing edge of the signal so that signal degradation is minimized.
Patent CA-2071129-C (CA)
Title: Disconnectable base support assembly for roadway signs
Inventor: HUGRON DENIS P
IPC: E01F9/631
Filed: 1992-06-12
Granted: 2002-09-17
Abstract: A quick disconnectable base support assembly for road-way sign is adapted to facilitate the removal of a sign post from a ground retaining foundation. The assembly comprises a C-shape bracket adapted to be horizontally secured to ground retaining foundation. The bracket has a flat face and two terminal flanges at each end extending one towards the other over the flat face.        The plate is slidingly mounted in the bracket which has a spring leaf under one of the flanges to abut the plate against the other end of the bracket. A brace member is secured on the flat plate and is provided with an attachment for holding a sign post. With such an arrangement, the sign post can be quickly disconnected from the ground retaining foundation into which the bracket is set. This arrangement allows the transportation and storing of the sign post without any of the usual base member which are heavy and cumbersome.
Patent CA-2073295-C (CA)
Title: Direct-to-press imaging system for use in lithographic printing
Inventor: FADNER THOMAS A
IPC: B41C1/10
Filed: 1992-07-07
Granted: 1999-01-12
Abstract: A direct-to-press imaging system for use in lithographic printing wherein a master-image printing cylinder is used with separate application of ink and water onto its surface to enable repetitive conveyance of image-formatted ink films onto substrates for printing purposes.  The imaging system includes a master-image printing cylinder adapted for receiving a hydrophilic coating layer on its surface and a device for laying down a uniform layer of hydrophilic material on the surface of this cylinder.  An apparatus is also provided for applying oleophilic materials in image-formatted patterns on top of the layer of hydrophilic material on the master-image printing cylinder to form a printing structure having separate hydrophilic and oleophilic areas of the format to be printed.  Further, a mechanism is provided for removing the printing structure including both the hydrophilic and oleophilic materials from the surface of the master-image printing cylinder so that a new printing structure corresponding to a new image to be printed can be formed on the master-image printing cylinder.
Patent CA-2074145-C (CA)
Inventor: NORAZ SERGE
IPC: G06F11/18
Filed: 1992-07-17
Granted: 2002-11-26
Abstract: The interface is formed by an astable multivibrator ring type oscillator comprising an odd number of inverting components. The power supply inputs of the inverting components constitute the functional inputs of the interface. The oscillator output signal is a continuous signal as soon as one of the inputs is no longer supplied correctly and the interface has the property of being strongly fail safe with respect to all the failures which may occur within it. The interface can be used as the base component of a voting module.
Patent CA-2076438-C (CA)
Title: Programmable urinal flushing delay circuit
Inventor: ALLEN CHARLES S
IPC: E03D13/00
Filed: 1992-08-19
Granted: 1998-07-28
Abstract: An apparatus for controlling flushing of a toilet device detects use of the toilet device and compares the actual number of uses against a preset number of uses which are permitted before flushing of the toilet device.  When the actual number of uses equals the predetermined number of uses, the toilet device is flushed.  At the first use of the toilet device after flushing, a timing cycle is initiated and the timing cycle will cause flushing of the toilet device unless there is the predetermined number of uses of the device within the period of the timing cycle.
Patent CA-2077599-C (CA)
Title: Catalytic converter preheating system
Inventor: KINNEAR JAMES WESLEY
IPC: F01N3/20
Filed: 1992-09-04
Granted: 1996-01-30
Abstract: In  a  vehicle  having  an  internal  combustion  engine including an ignition system and an exhaust system, a catalytic converter in the latter contacts hot exhaust gases to treat them prior to their discharge into the atmosphere.   An electrically energized heater in close association with the converter preheats the catalyst bed in preparation for contacting the hot exhaust gas stream.  Preheating, prior to starting the engine, is triggered by a mobile transmitter calibrated to transmit on one or more radio frequencies to accomplish the necessary degree of catalyst heating until the latter is at a suitable temperature for treating exhaust gas.  Thereafter the electric heating is discontinued in favor of further catalyst heating by contact with the hot exhaust gas.
Patent CA-2079144-C (CA)
Title: Switching assembly for glass fibre cables of the telecommunication and data technology
Inventor: TEICHLER HEIDE
IPC: H04B10/2581
Filed: 1992-09-25
Granted: 2002-07-16
Abstract: A switching assembly is disclosed for telecommunication and data optical fibres. An optical fibre partitioning and terminal rack includes a frame pivotably supported on the rack, a jumper field for the optical fibres, and at lest one magazine provided with slide-in openings for splice cassettes. A jumper field with a patch field for incoming and outgoing optical fibres is mounted on the frame so as to be accessible from the front and from the back of the frame, On the back of the frame, at least one magazine is provided, the splice cassette slide-in openings of which extend parallel to the back of the frame and the vertical axis thereof on the opposed side of the frame.
Patent CA-2079447-C (CA)
Title: Sustained drug release through topical application of bioadhesive liposomes
Inventor: MARGALIT RIMONA
IPC: A61K31/196
Filed: 1991-10-30
Granted: 2004-02-10
Abstract: Drug-encapsulating liposomes have been successfully modified through the covalent binding of recognizing substances without significant interference with the rate constant of drug efflux from the liposomes. Through data processing according to two mechanisms, the acceptability of the bioadhesive liposomes as sustained release drug delivery systems for topical or local ad-ministration is shown.
Patent CA-2084852-C (CA)
Title: System for making up or breaking out threaded joints of pipe
Inventor: PENISSON DENNIS J
IPC: E21B19/16
Filed: 1992-12-08
Granted: 1996-03-19
Abstract: There is disclosed a system for use in making up or breaking out threaded joints of pipe which includes a power tong having a head rotatably mounted on a housing and jaws on the head movable into and out of positions gripping the joint for rotation with the head in response to the supply thereto and exhaust therefrom of fluid under pressure.  A conduit connecting the fluid reservoir with pistons on the jaws includes a coupling having readily connectible and disconnectible parts, with a check valve and a vent valve installed in one end of the conduit between the check valve and the jaws, so that fluid pressure may be maintained on the pistons when the vent valve is closed and exhausted from the pistons upon opening of the vent valve.
Patent CA-2084935-C (CA)
Title: Supplementary nourishment
Inventor: SAKAI MITURU
IPC: A23L5/20
Filed: 1992-12-09
Granted: 1998-05-05
Abstract: Supplementary nourishment prepared in steps: (a) preparing an aqueous substrate containing vegetable protein and vegetable lipid; (b) adding thereto lipase, proteinase and/or amylase; and (c)  fermenting the aqueous substrate.   Koji such as malted rice or malt can replace said lipase, proteinase and/or amylase.  The fermented products improve immunity and can promote health.
Patent CA-2092174-C (CA)
Title: Optical systems, telescopes and binoculars
Inventor: FREEMAN MICHAEL HAROLD
IPC: G02B17/00
Filed: 1991-09-25
Granted: 2002-04-16
Abstract: An optical system for a telescope or a pair of binoculars has an optical path folded by erecting minors (12 and 14) and is arranged to give an inherent aperture and field greater in one direction than another. By using a low power eye piece lens means it is possible to arrange for the user's eye or eyes to be further behind the said means so he can wear his normal spectacles to cor-rect for eye defects. When a pair of systems is used in a pair of binoculars, it is possible for the exit pupils to be in the form of horizontal slots so the systems do not have to have adjustable spacing to allow for the user's eye separation.