baber/WOPTO huggingface dataset:
Patent CA-2051529-C (CA)
Title: Thin film deposition method for wafer
Inventor: AKETAGAWA KEN-ICHI
IPC: H01L21/20
Filed: 1991-09-17
Granted: 1999-08-24
Abstract: A thin film deposition method involves placement of a wafer or substrate having a surface containing at least two types of materials inside a vacuum chamber or vessel and introducing a reactant gas into the vacuum chamber or vessel. The reactant gas contain molecules that have a low adhesive coefficient relative to at least one of the at least two types of materials. This allows epitaxial growth to occur on the other type of materials contained in the wafer or substrate. The method further includes setting the pressure inside the vacuum chamber or vessel filled with the reactant gas equal to a pressure range in which the mean free path (d) of the reactant gas molecules is longer than the shortest distance (L) between the wafer or substrate placed inside the vacuum chamber or vessel and the vacuum side-exposed wall of the vacuum chamber or vessel, such that d > L. The method further includes cessation of the reactant gas into the vacuum chamber or vessel until the total amount of the reactant gas introduced into the vacuum chamber or vessel reaches a level at which a thin film can be deposited onto the surface containing the material having the low adhesive coefficient relative to the reactant gas.
Patent CA-2054533-C (CA)
Title: Antimicrobial compositions comprising iodopropargyl butylcarbamate and 2-mercaptopyridine n-oxide and methods of controlling microbes
Inventor: SHERBA SAMUEL EUGENE
IPC: A01N57/16
Filed: 1991-10-30
Granted: 2002-04-16
Abstract: A synergistic antimicrobial composition comprising 2-mercaptopyridine N-oxide, and salts thereof, and iodopropargyl butylcarbamate in a ratio to each other which exhibits synergism is disclosed.
Patent CA-2057088-C (CA)
Title: Pole anchoring system
Inventor: LEGLER STEVE
IPC: E04H12/22
Filed: 1991-12-05
Granted: 1997-08-26
Abstract: A pole anchoring device for supporting large diameter poles vertically over a hard surface such as rock,  concrete or the like.   The device comprises three or more harness members which are interconnectable to one another about a base section of a pole.   Each harness member has a pole engaging section for attachment against a pole and a bolt support section spaced outwardly from the pole engaging section.   An anchor bolt is guidingly positioned in  the bolt support section of each of the harness members and extends along an axis substantially parallel to the axis of the pole and spaced a predetermined distance away from the bolt support section.  An anchoring  assembly  is  secured to the  anchor bolt  and disposed below the bolt support section.   The anchoring bolt has an engageable top end portion which extends in a top section and partly above the bolt support section for engagement by a nut whereby to impart axial displacement of the anchor bolt in an upward direction to actuate the anchoring assembly to anchor a lower end of the anchor bolt in a bore hole made in the hard surface and spaced adjacent the pole.
Patent CA-2058936-C (CA)
Title: Process for coating electrically conductive substrates, aqueous enamel, process for producing an adduct containing urethane groups and adduct containing urethane groups
Inventor: SANTURE DAVID J
IPC: C09D175/06
Filed: 1990-07-20
Granted: 1998-12-29
Abstract: The invention relates to a cathodic electro-dipping process, which comprises a procedure in which the electro-dipping primer used contains an adduct containing urethane groups which is obtainable by reacting with one another a polyester-polyol or polyether-polyol, a polyisocyanate and a compound which contains a hydroxyl group and at least one ketimine group in the molecule.
Patent CA-2059911-C (CA)
Title: Combined hay processor and feed mixer
Inventor: NEIER BENJAMIN R
IPC: B01F13/10
Filed: 1992-01-23
Granted: 2000-08-15
Abstract: A hay feed wall (46) extends longitudinally of the mixer chamber with its lower edge closely adjacent to a chopper auger (32). A control wall (48) extends laterally from a chamber side wall over the chopper auger (32) to the feed wall (46) to cause hay bales to be channeled into the chopper auger (32) whereupon the hay is chopped by the knives (40) on the outer peripheral edge of the auger flighting.      The hay is then augered out of the chopping chamber into the mixing chamber where it is acted upon by a lower mixing auger and a rotor (24) in the main chamber (26). The lower corner (80) of the feed wall (46) engages the lower portion (66) of the control wall (48) to pivot the control wall (48) to a substantially vertical position as the feed wall (46) is pivoted to that position by operation of a cable (84) connected to a winch (82).
Patent CA-2060929-C (CA)
Title: Process for petroleum-wax separation at or above room temperature
Inventor: BABCOCK ROBERT E
IPC: C10G73/06
Filed: 1992-02-10
Granted: 2003-09-23
Abstract: There are disclosed processes for separating faxes of different melting points from a room temperature amorphous or liquid hydrocarbon mixture in an energy conservative manner by selectively causing precipitation of crystallized waxes. The processes involve the use of a selected co-solvent totally miscible with light and intermediate hydrocarbons from a group consisting of acetone, ketene, propanone, 2-propanone, methanol, ethanol, isopropanol, N-propanol, acetic acid, formic acid, and propionic acid or combinations thereof as a precipitating agent. Hydrocarbon mixtures, especially those with elevated pour points are first diluted by solvents such as toluene and/or methylethyl ketone which must be free of any significant quantity of the aforesaid co-solvents. The diluted hydrocarbon mixture at above 50 degrees F is mixed with one or more of such selected co-solvents in a ratio preferably between 1:1 and 10:1 by weight to the heavy hydrocarbon content of the mixture: five minutes or more without solid surface heat exchange cooling is allowed to permit crystallization of waxes which are removed in solid form by a physical process such as filtering, settling, or the like. By controlling the amount and nature of the selected co-solvent and by including or excluding water or brine with the co-solvent, valuable waxes of high melting point may be selectively separated, or all waxes may be removed indiscriminately; performing the separation process in several stages of adding co-solvent and/or water permits selecting out more valuable high melting point waxes first before succeeding stages reduce the wax content of the remaining liquid hydrocarbon to minimal values to enhance its value.
Patent CA-2061315-C (CA)
Title: Apparatus for supplying tape loading machines with reels of tape
Inventor: PEREGO LUCIANO
IPC: G11B15/68
Filed: 1992-02-17
Granted: 1997-05-20
Abstract: In a cassette loading machine several loading modules carry out the loading of a predetermined amount of use tape into the individual cassettes, said tape being continuously supplied from a pancake mounted on a support hub.  When one of the pancakes mounted on one of the hubs is out of tape, the intervention of a manipulating unit occurs and said unit picks up, by means of a grasping and release member carried by a supply module, a new pancake filled with use tape from a storage unit located sideways.  The manipulating unit moves close to the out of tape pancake and removes it from the respective support hub with the aid of a grasping member carried by a discharge module.          Them the new pancake filled with use tape is mounted onto the support hub in place of the out of tape pancake.
Patent CA-2064263-C (CA)
Title: Air electrode and solid electrolyte fuel cell having the same
Inventor: SEIKE SHOJI
IPC: H01M8/12
Filed: 1992-03-27
Granted: 1996-08-20
Abstract: An air electrode as a component of a solid electrolyte fuel cell.  The air electrode is composed of a first layer and a second layer.  The first layer has an open porosity of 25% to 57%, pore diameters of 2.5 µm to 12 µm and a resistivity of less than 0.22 .OMEGA.cm.  The second layer has an open porosity of 8% to 24%, pore diameters of 0.2 µm to 3 µm, and a ratio of the thickness of the second layer to the thickness of the air electrode is 2% to 28%.  The sum of the thicknesses of the first and second layers is 0.7 mm to 3.0 mm.  The materials of the first and second layers have perovskite structures selected from the group consisting of lanthanum manganate, calcium manganate, lanthanum nickelate, lanthanum cobalate and lanthanum chromate.  A solid electrolyte fuel cell includes the air electrode as described above, a solid electrolyte film formed on the surface of the second layer of the air electrode and a fuel electrode film formed on the surface of the solid electrolyte film.
Patent CA-2069291-C (CA)
Title: Polyaniline compositions having a surface/core dopant arrangement
Inventor: SHACKLETTE LAWRENCE W
IPC: H01B1/12
Filed: 1992-05-22
Granted: 2001-07-03
Abstract: A electrically conductive polyaniline particle comprising a substituted or unsubstituted polyaniline doped with two or more dopants, at least one of said dopants predominating at or near the surface of said particles and at least one other dopant predominating at or near the core of said particle.
Patent CA-2071880-C (CA)
Inventor: KRESSNER GERHARD
IPC: A61C17/26
Filed: 1990-09-05
Granted: 1995-02-07
Abstract: This invention is directed to an electric toothbrush having a brush section 24 which is demountable from a handle section 22.   Radial  and axial  securing of  the brush section 24 relative to the handle section 22 is accomplished by means separated by function, including a radial securing means 41 and an axial securing means 44.
Patent CA-2072231-C (CA)
Title: Determination of genetic sex in fish
Inventor: DEVLIN ROBERT H
IPC: C12Q1/68
Filed: 1992-06-24
Granted: 2005-05-10
Abstract: This invention provides a method of isolating sex specific DNA sequences in fish that includes the steps of hybridizing an excess of denatured, sheared DNA of a first sex with a lesser amount of denatured DNA of a second sex that has been digested with a restriction endonuclease that produces sticky ends, and ligating resulting double-stranded fragments having two sticky ends derived from the DNA of the second sex into a cloning vector. This invention also provides DNA probes isolated by the preceding method. This invention also provides methods of identifying sex specific DNA sequences using the aforementioned probes or, by using PCR primers derived from the aforementioned probes.
Patent CA-2076330-C (CA)
Title: Drywall sander
Inventor: MATECHUK WILLIAM
IPC: B24B23/00
Filed: 1992-08-18
Granted: 2003-04-22
Abstract: A motorized rotary sander is provided with an efficient dust pick-up system which particularly adapts it to drywall sanding. The abrasive discs used in the system are designed to provide an improved finish on drywall and similar surfaces.      The discs are quickly and easily replaced by virtue of the bayonet type fastening system. The combination results in a highly efficient drywall sanding device which requires minmum skill on the part of the user and can produce superior results.
Patent CA-2079365-C (CA)
Title: Check valve for fluid bladders
Inventor: PEKAR ROBERT W
IPC: F16K15/00
Filed: 1992-09-29
Granted: 2002-07-30
Abstract: A check valve provides a one-way fluid passage from without to within a fluid bladder formed by a pair of plastic sheets sealed together about their periphery. The check valve is formed by a pair of superimposed films of thermo-plastic material, generally equal in length, thermally bonded together at predetermined areas to define the fluid passage throughout the length of the valve. Each of the films, adjacent one end thereof, is sealed to one of the outer sheets where the valve enters the bladder by a seal line of wedge shape. Each of the films has a high-gloss, cohesive inner surface and a matte, non-cohesive, outer surface. At least one of the films includes, on its inner surface, a release material disposed at a location which corresponds to the area at the inlet end of the fluid passage through the peripheral seal of the bladder to prevent the fusing together of the films at that area of the seal. The seal in that area has a V-shape with apex pointing in a direction opposite the one-way fluid flow. The terminal ends of the superimposed films extend in surface-to-surface relation-into the bladder to provide a "duck-bill" type check valve.
Patent CA-2081757-C (CA)
Title: Variable frequency signal generating method
Inventor: AKIYAMA IWAO
IPC: G06F1/03
Filed: 1992-10-29
Granted: 1998-04-21
Abstract: A Direct Digital Synthesis type variable frequency signal generator generates a jitter free and stable output signal regardless of the address interval.  If the total number of addressable memory locations of a memory storing digital data is divisible without remainder by an initial address interval, then the memory is read every initial address interval with a clock signal of a predetermined frequency.  If the total number of addressable memory locations is not divisible without remainder by the initial address interval, then the address interval is modified to a value that is divisible without remainder into the total number of addressable memory locations and the clock frequency is modified in accordance with this modification of the address interval.  The memory is read every modified address interval with the modified clock signal.
Patent CA-2085741-C (CA)
Inventor: GUIRGUIS RAOUF A
IPC: B01L3/00
Filed: 1992-04-20
Granted: 2000-07-11
Abstract: A biological fluid collection container having a a cup member (16), a lid assembly (14) removably mounted to the cup member, the lid assembly having a housing (20) with a downwardly extending cylindrical skirt (22), a luer lock (28) with a throughgoing bore (29) extending from one side of the lid housing. A hollow tube (30) extends from the one side of the lid housing adjacent the luer lock (28) and is axially aligned with the throughgoing bore (29) of the luer lock (28). The hollow tube (30) is provided with a plurality of throughgoing holes (32) along its surface leading into its lumen (31) to provide for a sampling along various liquid level layers of the biological fluid specimen collected in the cup member (16) so that when the biological fluid specimen is removed from the cup member a representative sampling is obtained.
Patent CA-2087558-C (CA)
Title: Variable high/low vacuum/blower device
Inventor: STEINER ROBERT E
IPC: A47L5/14
Filed: 1993-01-19
Granted: 1995-09-19
Abstract: A variable high/low vacuum/blower device is disclosed as including an interchangeable vacuum or blower device with high pressure/low air flow or low pressure/high air flow operation.          The device includes a housing having air flow channels.  Air inlet and air outlet ports or openings extend through the housing and are connected to the air flow channels.  Motor driven blower wheels create air flow through the air flow channels.  A first valve, operable between first and second position, can selectively change the air flow in the air flow channels from high pressure/low air flow to low pressure/high air flow, while a second valve, also operable between first and second positions, can selectively change the air flow through the air inlet and air outlet ports or openings, enabling the device to operate either as a vacuum or blower device.  The first valve, when operable in a first position, directs exhausted air from the lower blower wheel to the upper blower wheel for high pressure/low air flow operation.  In its second position, the first valve enables intake air to be directed to the upper blower wheel, in addition to the normal intake of air by the lower blower wheel.  The second valve is located at an exit area of the air flow channels for selectively changing the air flow, in order to enable the device to operate as either a vacuum or blower.
Patent CA-2096254-C (CA)
Inventor: NICHOLSON WILLIAM J
IPC: C11D3/395
Filed: 1991-11-06
Granted: 1998-01-06
Abstract: Granular detergent or bleaching compositions, preferably for laundry use, containing amidoperoxyacid bleach and selected perfume ingredients having improved stability when in direct contact with the bleach.
Patent CA-2096837-C (CA)
Title: Disinfecting and sanitizing compositions
Inventor: LOPES JOHN A
IPC: A61K8/00
Filed: 1991-11-26
Granted: 2002-04-23
Abstract: Anhydrous sanitizing and disinfecting concentrate compositions having excellent shelf life and chemical stability comprise less than 0.l weight percent water; an anionic surfactant present in an amount of from about 0.05 weight percent to about 10.0 weight percent, and an acidic component, present in an amount effective to produce a pH of below pH 5.0 upon dilution with wa-ter. Between about 0,25 parts by weight to about 7.5 parts by weight of the concentrate compositions are diluted with sufficient water to make 100 parts by weight of an aqueous solution having excellent antimicrobial activity against gram positive and gram negative bacteria.
Patent CA-2097592-C (CA)
Title: Fine adjustment mechanism for a toolholder
Inventor: MITCHELL ROBERT N
IPC: B23C5/24
Filed: 1991-10-29
Granted: 1994-09-20
Abstract: The present invention relates to a milling cutter (10) having a cutter body (12) and a plurality of replaceable tool cartridges (16) circumferentially spaced about the outer periphery of the cutter body. An adjustment mechanism permits adjustment of the tool cartridges (16) in the direction parallel to the axis of rotation of the cutter body (12). The adjustment mechanism includes an adjustment screw (52) threaded into a corresponding bore (54) in the cutter body (12). The head (56) of the adjustment screw (52) projects into an inclined throughbore (60) in the tool cartridge (16). When the adjustment screw (52) is turned, the head (56) of the screw bears against the inner surface of the throughbore (60) causing the tool cartridge (16) to be axially displaced. A locking screw (62) is tightened to secure the tool cartridge (16) in place after it has been adjusted.
Patent CA-2103820-C (CA)
Title: Roll press
Inventor: GRABSCHEID JOACHIM
IPC: D21F7/00
Filed: 1992-12-10
Granted: 2004-06-01
Abstract: A press includes at least two press units supported by respective bearing brackets. the bearing brackets are coupled together by releasable tension rods which transmit a pressing force. When the two press units are not transmitting a pressing force in a pressing plane, the tension rods are prestressed at a maximum of a fraction of the maximum pressing force. One of the bearing brackets is movable relative to the other bearing bracket along the pressing plane. The bearing brackets are guided by a pair of guide surfaces disposed parallel to the press plane.
Patent CA-2106715-C (CA)
Title: Bar code detecting circuitry
Inventor: BUTTURINI RANDAL STEVEN
IPC: G06K7/10
Filed: 1993-09-22
Granted: 1997-03-18
Abstract: A wide bandwidth slope detector has a comparator with first and second time constant circuits coupled to first and second inputs thereof.  Where one time constant is on the order of three times the other, the comparator will change state in response to the slopes of an input analog signal coupled to the time constant circuit.  Feedback can be provided by a fixed resistor or by a tracking circuit.  A smoothing or clipping circuit can be used to pre-process the input analog signals to eliminate noise therefrom.  A bar code reading system combines first and second clipping circuits to smooth the highs and lows of the input signal, coupled to a slope detector.  The tracking circuit can be used to provide a symmetrical hysteresis characteristic.
Patent CA-2107825-C (CA)
Inventor: LAMBERT JAMES M
IPC: C08G18/32
Filed: 1993-10-06
Granted: 1997-12-23
Abstract: A  non-yellowing,  impact  resistant  high  hard segment   polyurethane   made   from   a   non-aromatic diisocyanate,  a diol chain extender  and an  aminodiol chain extender may also contain up to five percent by weight  of  a macroglycol.  A  catalyst  free  method  to prepare the polyurethane is a feature of the invention.
Patent CA-2110291-C (CA)
Inventor: COKER GEORGE T III
IPC: A61P17/02
Filed: 1992-05-29
Granted: 2009-10-13
Abstract: The present invention relates to the discovery that biocompatible anionic polymers can effectively inhibit fibrosis, scar formation, and surgical adhesions. The invention is predicated on the discovery that anionic polymers effectively inhibit invasion of cells associated with detrimental healing processes, and in particular, that the effectiveness of an anionic polymer at inhibiting cell invasion correlates with the anionic charge density of the polymer. Thus, the present invention provides a large number of materials for use in methods of inhibiting fibrosis and fibroblast invasion.  Anionic polymers for use in the invention include but are not limited to natural proteoglycans, and the glycosaminoglycan moieties of proteoglycans. Additionally, anionic carbohydrates and other anionic polymers may be used. The anionic polymers dextran sulfate and pentosan polysulfate are preferred. In a more preferred embodiment, dextran sulfate, in which the sulfur content is greater than about 10 % by weight, may be used. In a more preferred embodiment, the average molecular weight is about 40,000 to 500,000 Daltons. The present invention provides compositions and methods to inhibit fibrosis and scarring associated with surgery. The invention further provides compositions and methods to inhibit glial cell invasion, detrimental bone growth and neurite outgrowth. In a preferred embodiment, the inhibitory compositions further comprise an adhesive protein.
Patent CA-2124832-C (CA)
Inventor: HOLLEY JAMES W
IPC: A61J1/00
Filed: 1992-12-04
Granted: 1998-08-25
Abstract: A multi-channel bottle (310) includes an opening (315) surrounded by a flange (316) which has a spherical inner surface formed to receive a hollow member (320). The hollow member (320) includes a: lower opening (325) and an upper opening (326). The housing (330) is adjustable to bias the hollow member (320) against the spherical inner surface of the flange (316), to seal around the opening (315). When closed, a portion (321) of the hollow member (320) blocks the opening (315). When open, the hollow member (320) is in an upright position such that the opening (315) of the bottle (310) and the lower opening (325) of the hollow member (320) are aligned. A method for mixing two substances includes disposing an amount of one substance in the bottle (310), adjusting the hollow member (320) to block the opening (315) of the bottle (310), and disposing an amount of another substance in the hollow member (320). To mix the substances, the hollow member (320) is rotated into the open position and the apparatus is shaken.
Patent CA-2125486-C (CA)
Title: Platelet gpiiia p1 a1 and p1 a2 epitopes, their preparation and use
Inventor: BOWDITCH RONALD D
IPC: C07K19/00
Filed: 1992-11-24
Granted: 1999-09-07
Abstract: Polypeptides and fusion polypeptides that immunologically mimic the native P1A1 and P1A2 determinants of platelet protein GPIIIa are disclosed. Also disclosed are DNA segments and recombinant DNA molecules that encode those polypeptides and fusion polypeptides and methods for expressing and using those determinants. Antibodies that immunoreact with one determinant or the other, but not both are also disclosed, as are methods of preparing and using those antibodies.
Patent CA-2127374-C (CA)
Inventor: BARREAU MICHEL
IPC: A61K31/4375
Filed: 1993-02-04
Granted: 2004-12-07
Abstract: The present invention relates to a new isoindolinone derivative of formula:    <IMAGE>  (I)  in racemic form or in the form of its enantiomers, as well as its salts, its preparation and the pharmaceutical compositions which contain it.