baber/WOPTO huggingface dataset:
Patent CA-2007439-C (CA)
Title: Transcutaneous energy transfer device
Inventor: MILLER JOHN
IPC: A61N1/378
Filed: 1990-01-09
Granted: 1996-08-13
Abstract: An improved transcutaneous energy transfer (TET) device comprises a primary winding for placement on or near a skin surface, and a secondary winding for implantation under said skin surface.  A field effect transistor (FET) is arranged to switch said primary coil across an external DC power supply.   A tuning capacitor is linked to said primary coil whereby said primary coil, when said FET is turned off, will resonate at its natural frequency thereby compensating for drift in component values and reducing power transfer sensitivity to component drift.
Patent CA-2008899-C (CA)
Title: Electrically pumped vertical cavity laser
Inventor: DEPPE DENNIS G
IPC: H01S5/183
Filed: 1990-01-30
Granted: 1994-02-01
Abstract: Abstract of the Disclosure An electrically pumped vertical cavity laser depends upon reflection as between an unaided DBR reflector on one side of the cavity and a metal-supplemented DBR reflector on the other. Placement of the shorter supplemented DBR on the p-conductivity type side of the cavity reduces the resistance of the electrical series pump path. Permitted use of an active region of a thickness of 1µm or less in the lasing direction results in low lasing threshold. The structural approach is of significance for laser integration in integrated circuits, whether electro-optic or all-optic.
Patent CA-2010733-C (CA)
Title: Hydraulic lift with weight transfer
Inventor: BEHRENS ROBERT NICK
IPC: A01B63/11
Filed: 1990-02-22
Granted: 1996-02-06
Abstract: Lift structure particularly useful with front mounted implements for providing both lift and weight transfer functions from a single valve.  The valve acts as an adjustable bleeder for the lift cylinder and includes a control knob which is movable both axially and rotationally to respectively provide lift and adjustable flotation.  The valve is normally biased to an adjustable orifice position for operating the implement in a lowered, flotation position.  To momentarily lift the implement, the operator moves the control knob against the bias to direct flow to the lift cylinder thereby raising the implement off the ground.  When the operator releases the valve, it automatically returns to the preset orifice position to provide the desired flotation.
Patent CA-2011516-C (CA)
Title: One-way clutch assembly
Inventor: GRANZOTTO ROBERT
IPC: F16D41/12
Filed: 1990-03-05
Granted: 1993-05-18
Abstract: ABSTRACT             In a reel assembly of a tape cassette a one-way clutch mechanism is provided which serves to prevent rotation of the reel in the direction required for the purposes of rewinding a tape thereon.  The one-way clutch mechanism includes a slipway channel which extends circumferentially of the axis of rotation of the reel.  The reel assembly includes a first clutch member which is designed to be driven by the power output shaft of the winding mechanism and a second member which is designed to be held fast with respect to the cassette.  A slipway channel is formed at an interface between the first and second clutch members such that a portion of the channel is formed in the first member and a portion of the channel is formed in the second member.  A pawl displacing ring is mounted in the slipway channel so that it bears against the second member and is drivingly connected to the first member by means of a pawl.  The pawl is pivotally mounted in the first member and is movable between a retracted position out of engagement with the second clutch member and an extended position in which it engages the second member to prevent relative rotation between the first and second members.   The displacer ring serves to displace the pawl outwardly from its retracted position to its extended position in response to rotation of the first member in the second rotational direction.
Patent CA-2014877-C (CA)
Title: Imidated copolymers and uses thereof
Inventor: ENOMOTO NORIHIDE
IPC: C08L77/00
Filed: 1990-04-19
Granted: 1995-09-12
Abstract: Disclosed is a novel imidated copolymer of indene or a polymerizable component of naphtha oil and maleimide and optionally maleic anhydride.  The copolymer is useful as a resin improver and a compatibilizing agent for the purpose of improving heat resistance and mechanical properties.  The polymerizable component of naphtha oil normally composed of:          (A) 60 - 99 wt.% of indene, (B) 0.5 - 29.5 wt.% of styrene, and (C) 0.5 - 29.5 wt.% of one or more compounds selected from the group consisting of .alpha.-methylstyrene, methylstyrene, methylindene, dimethylstyrene, trimethylstyrene, cumarone and dicyclopentadiene.
Patent CA-2015308-C (CA)
Title: Transparent barrier film and method
Inventor: WENDT LAUREN R
IPC: B32B7/02
Filed: 1990-04-24
Granted: 1999-12-07
Abstract: A substantially transparent barrier film comprising a flexible substantially transparent substrate having first and second surfaces. A substantially colorless barrier coating is formed on at least one of said surfaces of a carbon-like material having a thickness ranging from 50 to 300 Angstroms.
Patent CA-2015363-C (CA)
Title: Multiple contact electrical connector portion for an automatic railway coupler
Inventor: TA CUONG MANH
IPC: B61G5/10
Filed: 1990-04-25
Granted: 1999-01-26
Abstract: An  electrical  connection  portion for a railway car coupler  having  multiple contacts for being connected to train  line  circuits.  The electrical connection portion includes  a  plurality  of movable and stationary contact elements  and  a  plurality of conductive studs assembled from  the  front side of an insulative block.  There is a plurality  of  jumper  plates  electrically  connected to selected  ones  of  the conductive studs for establishing train line circuits.
Patent CA-2017003-C (CA)
Title: Diversity receiving apparatus
Inventor: FUKUMURA YUKIO
IPC: H04B7/08
Filed: 1990-05-17
Granted: 1995-01-03
Abstract: A diversity receiving apparatus having a plurality of antennas, antenna feeders each being associated with respective one of the antennas, and a single diversity receiving section to which the antennas are connected via the associated antenna feeders.  A breakage detecting circuit is included in the apparatus for detecting the breakage of any one of the antenna feeders.  The detecting circuit uses an antenna whose radiation element is connected to ground and, by applying a predetermined DC potential to the hot line of the antenna feeder via a resistor, constantly monitors the potential.  On the breakage of the antenna feeder, the detecting circuit produces an alarm in response to the resultant change in the potential.  The apparatus is capable of readily detecting that the diversity reception effect has been lost and the receiving ability has been degraded due to the breakage of the antenna feeder.
Patent CA-2023226-C (CA)
Title: Key blank adaptor
Inventor: CASTAIN DAVID T
IPC: B23C3/35
Filed: 1990-08-14
Granted: 1993-04-20
Abstract: ABSTRACT OF THE DISCLOSURE An adaptor for converting a conventional straight cut key duplicator into one capable of executing both straight and angular cuts. The angular cuts are necessary in duplicating MEDECO and EMHART type keys. The adaptor mounts to the vise grips of a conventional machine. It comprises a back plate and a front plate that is pivotally mounted to the back plate. A key vise is mounted to the front plate and is adjustable by means of an adjustment screw and a fine adjustment collar. The pivoting motion of the front plate allows for the angular cuts to be made on a key held in the adaptor. A set screw that mates with a plurality of apertures on the back plate holds the front plate in position at the desired angle.
Patent CA-2023484-C (CA)
Title: Nuclear reactor
Inventor: BINGHAM BILLY E
IPC: G21C1/00
Filed: 1990-08-17
Granted: 1994-12-27
Abstract: A nuclear reactor using gas as a primary coolant and liquid  as  a  moderator  and/or  reflector.   Gas  coolant  flows through inlet passages around the outlet plenum to a distributor plate.  The gas is directed between fuel element housing thimbles and fuel elements therein, through the fuel elements, and into the reactor outlet plenum.  Fins on the thimble housings conduct heat to the gas from a liquid moderator circulating in the core. The use of a liquid moderator enhances safety, allows the fissile material and reactor mass to be reduced and eliminates problems associated with cooling of a solid moderator.
Patent CA-2025881-C (CA)
Title: Dentifrice composition
Inventor: MORI SHIGEKI
IPC: A61K8/86
Filed: 1990-09-20
Granted: 2000-10-31
Abstract: The present application is directed to a dentifrice composition stably containing cetylpyridinium chloride. The composition has improved shape retention at low temperatures and is in the form of an aqueous gel. The composition comprises 15 to 80% by weight of a polyoxyethylene-polyoxypropylene block copolymer surfactant based on the total weight of the composition, 0.001 to 5% by weight of cetylpyridinium chloride based on the total weight of the composition, and polyethylene glycol having an average molecular weight of 2,000 to 20,000 in a proportion of 1/200 to 1/4 based on the weight of the polyoxyethylene-polyoxypropylene block copolymer.
Patent CA-2025897-C (CA)
Title: Fermentation system and method of use thereof
Inventor: LYNN CHARLES C
IPC: A21D8/04
Filed: 1990-01-22
Granted: 1997-06-17
Abstract: A precursor base for use in a bakery dough product comprising an acidic concentrate, at least one type of sugar, yeast, at least one type of flour, non-fat dry milk and at least one type of lactic acid producing bacteria and a process for producing the precursor base are disclosed.  The precursor base is useful in a process for producing a precursor slurry (or active ferment concen-trate) for use in making a preferment dough mixture for the preparation of the bakery dough product. In addition, processes for preparing the precursor slurry and the preferment dough mixture and an apparatus for producing the preferment dough mixture are disclosed
Patent CA-2029952-C (CA)
Title: Method of high crushing force conical crushing
Inventor: MAGEROWSKI ANTHONY J
IPC: B02C2/04
Filed: 1990-11-14
Granted: 1996-04-23
Abstract: A method of conical crushing to achieve the grinding of feed material includes narrowing the crusher setting beyond the specified minimum limit to enable the head to periodically exert high levels of compressive crushing force, interspersed with low pressure relief periods for mixing of the particles, the cycle of crushing periods corresponding with the gyrational cycle of the head.  The method also includes increasing the releasing force exerted upon the crusher bowl to promote the grinding action of the crusher at its narrowed setting.
Patent CA-2037906-C (CA)
Inventor: SCHAEFFER DENNIS R
IPC: H04B7/26
Filed: 1990-07-27
Granted: 1994-11-08
Abstract: A cellular radiotelephone communications system comprising a system of cells that are made up of an array of directional sector antennas. These antennas are centrally located in the cell and radiates into a 60° area of the cell. Each antenna in a cell has a group of frequencies assigned to it that is different than the group of frequencies assigned to the other antennas within that cell. These frequency groups are repeated either 2 or 8 times respectively in a 4 or 16 cell repeat pattern, effectively forming a two cell reuse pattern. The preferred embodiment of this invention is asymmetrically positioning the repeating frequency groups in an alternating fashion so that one row faces in the opposite direction of another row. The asymmetrical positioning of cells is possible only by departing from the prior art, cellular positioning rules. The positioning rules used in this invention create a 4 or 16 cell repeat pattern by locating co-channel cells closer in one direction than another.
Patent CA-2040815-C (CA)
Title: Enzyme stabilisation
Inventor: GIBSON TIMOTHY DAVID
IPC: C12N9/96
Filed: 1991-04-19
Granted: 1996-01-16
Abstract: A method of stabilising enzymes or other proteins against denaturation or drying comprises mixing the protein with a cyclic polyol and a cationic polyelectrolyte.
Patent CA-2044266-C (CA)
Title: Interactive contest system and method
Inventor: PEARSON TIMOTHY R
IPC: A63F13/06
Filed: 1990-10-22
Granted: 1996-11-19
Abstract: An interactive contest system is provided which permits competition among a plurality of remote participants. The system includes a central controller, storage devices for storing a Contest Roster from which each participant selects a team roster, a plurality of Touch-ToneTM telephones linked to the controller, and a publication such as a newspaper distributed to all participants. Each participant's team roster is evaluated on a periodic basis according to a formula for calculating each member's score employing a database of variable performance statistics which reflect the roster members' actual performances. Team roster totals are compared for discrete periods of competition to determine which participants have accumulated the highest score.
Patent CA-2053590-C (CA)
Title: Apparatus and method for strengthening bottom of container
Inventor: JENTZSCH K REED
IPC: B65D1/46
Filed: 1991-10-21
Granted: 2002-07-16
Abstract: Apparatus (110, 180, 270, 330, or 360) either reforms a circumferential part (86) of a container body (11) radially outward to form a container body (64), or reforms a plurality of circumferentially-spaced parts (74) of the bottom recess portion (26) of a container body (11) radially outward to from a container body (62).  The apparatus (110, 180, 270, 330, or 360) includes a body (158, 230, 288, 332, or 365) and has a tooling element attached thereto which may be a roller (172, 246, 302, or 350) or a swaging element (392).  Means is included for providing relative transverse movement between the container body (11) and the tooling element (172, 246, 302, 346, or 392).  Means (160, 222, 296, or 332) is provided for providing relative rotary movement between the container body (11) and the tooling element (172, 246, 302, or 346) in all embodiments except the apparatus (360) in which the bottom recess portion (26) is swaged.  The method includes providing relative transverse movement between the container body (11) and the tooling element (172, 246, 302, 346, or 392), and in all embodiments except the one (360) in which reworking is achieved by swaging, relative rotary movement between the container body (11) and the tooling element (172, 246, 302, or 346) is provided.
Patent CA-2060122-C (CA)
Title: Main rotor assembly support truss
Inventor: GRANT PETER LEIGH
IPC: B64C27/00
Filed: 1992-01-28
Granted: 1999-10-12
Abstract: A support truss for the main rotor assembly of a helicopter is configured to structurally support the main rotor assembly in integrated combination with the helicopter airframe and to transmit dynamic and static longitudinal, lateral, vertical, and torsional loads of the main rotor assembly into the helicopter airframe at two distinct, spaced-apart load transfer levels. The support truss is an integrally formed structure that includes a generally cylindrical body member configured to provide attachment points for the static rotor mast and the transmission of the main rotor assembly, a pair of forward facing primary support ribs configured to secure the support truss to a primary load transfer level of the helicopter airframe and to transmit dynamic and static longitudinal, lateral, vertical, and all torsional loads to the primary load transfer level, and a pair of aft facing support struts configured to secure the support truss to a secondary load transfer level and to transmit only axial loads to the secondary transfer level. The support truss also includes a forward facing secondary support rib that provides fail-safe redundancy in the event of a loss of one of the primary support ribs. The support truss may also include a cross stringer extending between and integrally interconnecting the primary and secondary support ribs. A plurality of servo lugs may be integrally formed with the body member to provide lower attachment points for rotor servo actuators of the main rotor assembly.
Patent CA-2062265-C (CA)
Title: Gas laser oscillating device
Inventor: HONGU HITOSHI
IPC: H01S3/03
Filed: 1992-03-04
Granted: 1997-01-07
Abstract: A gas laser oscillating unit comprises a discharge tube 1 for generating an electric discharge to act as a laser excitation source for laser gas flowing from a metal cathode to a metal anode located at opposite ends of the discharge tube.  A tube member having a pair of slits 21 generates a swirl of laser gas upstream of the cathode 2.  A hollow member with a tapered inner surface squeezes the laser gas stream, the cathode being connected to the tube member 22 through the tapered hollow member 23.  At least the inner surface of each of the tube member 22 and the hollow member 23 is made of an alloy material containing aluminum and has thereon a black alumite layer for absorbing diffused laser beams, the black alumite layer 31 being made from an inorganic material.  The arrangement better maintains the output of the laser by reducing contamination of the cathode and mirrors.
Patent CA-2071906-C (CA)
Title: Odor controlling compositions and articles
Inventor: FURIO DIANE LYNN
IPC: A61F13/472
Filed: 1991-01-31
Granted: 1999-12-28
Abstract: Zeolites having "intermediate" SiO2/AlO2 ratios are used to control odors. An "intermediate" ratio is when the SiO2/AlO2 ratio is less than about 10. The intermediate zeolites find use in catamenials, diapers, pantiliners, bandages, and the like. where control of odors associated with body fluids is desired. Combinations of intermediate zeolites with other odor controlling materials is also disclosed.
Patent CA-2077496-C (CA)
Title: Herbicidal compositions
Inventor: ROGNON JACQUES
IPC: A01N43/40
Filed: 1992-09-03
Granted: 2003-05-13
Abstract: Compositions comprising flurtamone and diflufenican and their use in controlling the growth of weeds are described.
Patent CA-2081593-C (CA)
Title: Method and installation for manufacturing rectangular enamelled magnet wire with in-line rolling and enamelling
Inventor: BYRNE MICHAEL JOHN
IPC: B21F19/00
Filed: 1992-10-28
Granted: 1998-12-29
Abstract: A novel method and installation are proposed for manufacturing rectangular enamelled magnet wire using an in-line rolling and enamelling system. The in-line rolling and enamelling of the magnet wire in a single, continuous operation provides many advantages and eliminates quality programs, inefficiencies and waste which are inherent in the manufacture  of  shaped  magnet wire  using  separate rolling and enamelling operations.  It  is  particularly suitable for use with the so called "mini" rolling mills which are small and flexible and  modular in design.
Patent CA-2084129-C (CA)
Inventor: MCANDREW THOMAS PAGE
IPC: C02F1/56
Filed: 1992-11-30
Granted: 1997-10-28
Abstract: Polyvinylaminals, optionally as the formed copolymer with polyvinylhemiaminals and polyvinylacetals are useful as separating agents and are provided by reacting a poly(vinylamine) or a copolymer containing vinyl alcohol and vinylamine units wlth a monoaldehyde.  The aldehyde, such as butyraldehyde, can be introduced into the polymer aminalization as a liquid or gas, generally in a proportion of about 0.02 to 0.5 mol per mol of alcohol and amine units in the polymer chain.  These polymers, especially as the cationic salt, perform very well in the flocculation, settling, clarification and dewatering of wastewater.
Patent CA-2088991-C (CA)
Inventor: MORAN JAMES ROBERT
IPC: B32B27/30
Filed: 1991-08-01
Granted: 2002-04-23
Abstract: A laminate (10) which is substantially free of distortion when used in a safety glazing comprising a transparent, thermo-plastic substrate layer (12) optionally surface treated or coated to improve adhesion, bearing one or more functional performance layers (18), such as an infra-red radiation reflecting stack, and at least one layer of plasticized polyvinyl butyral (14, 16) bonded on one side to a functional performance layer or the substrate layer having a roughened deairing surface on its other side charac-terized by a roughness value, Rz, of at least 10 micrometers, such plasticized polyvinyl butyral Layer, before bonding to the sub-strate layer or functional performance layer, possessing low surface waviness on each side characterized by a wave index value.      WI, of less than 15.
Patent CA-2089655-C (CA)
Title: A method and a system for producing block bodies from loose material such as sphagnum
Inventor: ELLEGAARD OYVIND
IPC: A01G9/10
Filed: 1991-09-03
Granted: 2002-05-14
Abstract: In the production of growth blocks of sphagnum there are considerable operational problems with the required compacting of the loose sphagnum, as both compaction worms and pistons may easily get stuck. Instead, the invention provides for the use of a suction technique, whereby the loose sphagnum is sucked into a perforated pipe in a suction chamber, whereby a marked compaction of the material is achievable without any use of mechanical devices. The compacted block material may be surrounded by a decomposable paper casing, which is laid in successively as a lining hose of air permeable paper. The compacted material can be delivered as a compact string by successive projection movements of the suction chamber for being cut into blocks, and the suction chamber can be temporarily opened for free return movements into its initial position.
Patent CA-2092146-C (CA)
Title: Optical amplifier with automatic self adjusting gain spectrum
Inventor: MINELLY JOHN DOUGLAS
IPC: H01S3/23
Filed: 1993-03-22
Granted: 2001-02-13
Abstract: An optical amplifier for amplifying signals of different wavelengths throughout a spectral window modifies the amplification of each signal such that the output levels of the signals are more equal than the input levels thereof when the input levels differ. by more than a predetermined amount. In one embodiment this is achieved by providing a dichroic reflector 120 at one end of an amplifying fibre so that standing wave patterns are set up in the amplifying fibre by interference of the forward and reflected signal lights, at the different wavelengths, the signal at each wavelength preferentially decreasing its own gain with increasing signal level.
Patent CA-2101871-C (CA)
Title: Transdermic pharmaceutical preparation
Inventor: ANDRIEU VERONIQUE
IPC: A61K9/70
Filed: 1993-08-04
Granted: 2004-05-25
Abstract: Pharmaceutical preparation intended for transdermal administration, which contains alfuzosin (N-[3-[(4-amino-6,7-dimethoxy-2-quinazolinyl)methylamino]propyl]tetra- hydro-2-furancarboxamide) or one of its salts and a mixture composed of water, one or more organic solvents and one or more absorption promoters.
Patent CA-2106249-C (CA)
Title: Solution pour la perfusion, la conservation et la reperfusion d'organes
Inventor: MENASCHE PHILIPPE
IPC: A61K38/06
Filed: 1993-09-15
Granted: 2009-04-14
Abstract: Solution de perfusion, de conservation et reperfusion d'organes. Solution unique de perfusion, stockage et reperfusion, ayant sensiblement la composition suivante : Constituant 	Concentration g/l 				mmol/litre K+ 							15 ~ 5 % Na+ 							100 ~ 10 % Mg++ 						13 ~ 5 % Ca++ 						0.25 ~ 5 % Chlorures 					41.5 ~ 5 % - Chlorure de calcium, 2H2O 0,037 - Chlorure de potassium 	1,118 		~ 5 % - Chlorure de magn‚sium 	2,642 Histidine (base) 		4,650 	30 ~ 10 % Mannitol 				10,930 	60 ~ 5 % Lactobionate (acide) 	28,664 	80 ~ 5 % Glutamate (acide) 		2,942 	20 ~ 10 % Eau (quantit‚ pour un litre r‚ajust‚ 
 pH 7,30 ~ 0,10 
 ~ 20.degree.C) Osmolalit‚ th‚orique 360 m Osm/kg Glutathion (r‚duit GSH) ou ‚quivalent 0,5 
 10 mmol/l, (de pr‚f‚rence 3) le glutathion r‚duit, ou ‚quivalent, ‚tant en solution sous pression partielle d'oxygŠne r‚duite ou nulle et se maintenant sensiblement 
 cette valeur jusqu'
 l'utilisation.