baber/WOPTO huggingface dataset:
Patent NO-162558-C (NO)
Inventor: LESHER GEORGE YOHE
IPC: C07D407/14
Filed: 1983-11-03
Abstract: 2-Q-6-Q min -8-R-pyrido[2,3-d]pyrimidin-5(8H)-ones (I), where Q is 4 (or 3)-hydroxyphenyl, 4(or 3)-methoxyphenyl, 4 (or 3)-pyridinyl or 4(or 3)-pyridinyl having one or two lower-alkyl substituents, R min  is hydrogen or alkyl having one to four carbon atoms, Q is hydrogen, amino or nitro, and R is alkyl having from one to four carbon atoms, CH(C2H5)2, (CH2)n = CHCH2 where n is 1 or 2, or Y-Z where Y is alkylene having from one to four carbon atoms and having its connecting linkages on different carbon atoms and Z is hydroxy, OR1 or NR1R2 where R1 and R2 are each methyl or ethyl, or acid-addition salts thereof and there preparation by reacting a 2-Q-4-R min -pyrido[2,3-d]pyrimidin-5(8H)-one of the Formula III (herein) where Q is 4 (or 3)-methoxyphenyl, 4(or 3)-pyridinyl or 4(or 3)-pyridinyl having one or two lower-alkyl substituents or alkali or alkaline earth metal salt thereof with an alkylating agent. Also shown is the cardiotonic use of I where Q is 4(or 3)-hydroxyphenyl, 4(or 3)-pyridinyl or 4(or 3)-pyridinyl having one or two lower-alkyl substituents and Q min  is hydrogen or amino. The novel compounds of Formula III and their preparation are also claimed.
Patent NO-178202-C (NO)
Inventor: KARTOVAARA ILKKA
IPC: D21H25/00
Filed: 1991-09-17
Abstract: The invention concerns a procedure for glazing a cardboard web, the coated side of the web (1), dry matter content less than 80% by weight, being contacted with the surface of a heated, smooth belt (2), and the opposite side of the web being contacted with a cooled belt (3) or equivalent, and apparatus for implementing the procedure, comprising a smooth belt (2) with heating means (7) for heating the belt, placed immediately after the coating means (4) so that the web is conducted onto the belt immediately after the coating means, with the coating against the belt. <IMAGE>
Patent CA-2000498-C (CA)
Title: Osteogenic factors
Inventor: PARSONS THOMAS F
IPC: C12P21/02
Filed: 1989-10-11
Granted: 2004-01-13
Abstract: The present invention provides an osteogenically active protein preparation characterized by a molecular weight of from about 31,000 to 34,000 daltons as characterized by non-reducing sodium dodecyl sulfate polyacrylamide gel electrophoresis and by the characteristic of eluting from a reverse phase high performance liquid chromatography column equilibrated with buffers containing trifluoroacetic acid and acetonitrile by eluting within the concentrations of 35~ to 45% acetonitrile. The invention further provides improved methods for isolating such preparations and genes encoding all or a portion of polypeptide subunits of dimers comprising the osteogenic protein preparation.
Patent CA-2000673-C (CA)
Inventor: ESTES EARL M JR
IPC: H03K5/00
Filed: 1989-10-13
Granted: 1994-03-22
Abstract: PROGRAMMABLE TRIANGLE WAVE GENERATOR                        ABSTRACT A triangle wave generator (10) which is programmable, and which provides variable amplitude. frequency independent, triangle waves over a wide frequency bandwidth while employing a low voltage power source. The triangle wave genera-tor (10) comprises a square wave input signal source (12) and a reference voltage sig-nal source (14). A first amplifier (16) amplifies the square wave input signals and couples them by way of a transformer (34) to an integrator (36, 40) which generates triangle wave output signals in response thereto. A second amplifier (18) connected to the triangle wave signal and to the transformer coupled square wave current source for the purpose of providing a bootstrap. A third amplifier (20) samples and com-pares the triangle wave output signals to the reference voltage signals and generates output error signals in response thereto. A driver circuit (22) responds to the output error signals and provides bias voltage signals to the first amplifier (16) that controls the amplitude of the square wave output signals in proportion to the amplitude of the reference voltage signals. The triangle waves are controlled in a manner to cause their amplitude to be proportional to the amplitude of the reference voltage signals and independent of the frequency of the square wave input signals. The triangle wave generator (10) produces a 20 volt peak-to-peak amplitude triangle wave at at frequencies greater than 300 KHz utilizing a conventional ?15 volt power supply source. A nonprogrammable, fixed frequency embodiment and a method of produc-ing triangle wave signals are also disclosed.
Patent CA-2005987-C (CA)
Title: Therapeutically active substituted benzimidazole and process for its preparation
Inventor: BRANDSTROEM ARNE ELOF
IPC: C07D401/12
Filed: 1989-12-19
Granted: 1999-04-13
Abstract: 5-chloro-2-[[(3,4-dimethoxy-2-pyridinyl) methyl]sulfinyl]-1H-benzimidazole and physiologically acceptable salts thereof as well as an intermediate, pharmaceutical compositions containing such compound as active ingredient, and the use of the compound in medicine, particularly for gastrointestinal disorders.  The intermediate is 5-chloro-2-[[(3,4-dimethoxy-2-pyridinyl)-methyl]thio]-1H-benzimidazole.
Patent CA-2007826-C (CA)
Inventor: BOGARDY LAWRENCE S
IPC: B29B15/12
Filed: 1990-01-16
Granted: 1998-07-21
Abstract: An apparatus for impregnating the surface of a web with a liquid in the form of a pattern, comprising a vacuum chamber having a suction wall with one or more openings therein; means for pulling and controlling a vacuum on said vacuum chamber; an impregnating chamber adapted to hold the liquid impregnant, said chamber having an exit wall with one or more openings therein, the exit wall being a substantially coplanar extension of the suction wall of the vacuum chamber; a pattern belt having an inner surface and an outer surface and perforations in the configuration of the desired pattern, said belt being mounted over the outside of said vacuum and impregnating chambers and being substantially unperforated except in the area of said pattern; means for moving the pattern belt past first the suction wall of the vacuum chamber and then the exit wall of the impregnating chamber, with the inner surface of the belt being in sealing engagement with the outside surfaces of both said walls; means for pressing the fibrous web to be treated against the outer surface of said pattern belt; and means for conveying said web past said suction and exit walls in synchrony with said pattern belt.
Patent CA-2008431-C (CA)
Title: Battery monitoring system
Inventor: CLEGG ANDREW SIMON
IPC: G01R31/374
Filed: 1990-01-24
Granted: 2001-01-23
Abstract: A battery monitoring system 10 supplies the user of a battery power system with information indicating the capacity remaining in the battery 9 during discharge. During discharge the system 10 monitors various parameters and calculates on a rapid sampling basis derived parameters from algorithms stored in memory in tabulated form. The recharging efficiency is also evaluated, stored and updated on each charge/discharge cycle so that ageing of the battery 9 is monitored.
Patent CA-2011338-C (CA)
Title: Low-glare light
Inventor: HELM RANDALL S
IPC: F21V5/02
Filed: 1990-03-02
Granted: 1995-09-19
Abstract: A low-glare light having a light source behind a transparent sheet of dielectric material.  The transparent sheet has a prismatic surface on one side containing a plurality of elongated prisms and a piano surface on the opposite side.  The transparent sheet is positioned with the prismatic surface facing the source of light with the elongated prisms perpendicular to the source of light.
Patent CA-2015405-C (CA)
Title: Packet synchronization utilizing a multi-length packet format including check sequence (s)
Inventor: MAY CARL J JR
IPC: H04L7/10
Filed: 1990-04-25
Granted: 1993-10-12
Abstract: PACKET SYNCHRONIZATION UTILIZING A    MULTI-LENGTH PACKET FORMAT INCLUDING CHECK SEQUENCE(S) Abstract Packet synchronization is obtained by employing a unique packet transport word including at least one prescribed parity check pattern in conjunction with a packet length indicator. An at least one prescribed parity check is computed over transport word length blocks of bits of an incoming packet and compared to an expected parity check pattern in predetermined bit positions in the incoming block of bits to identify possible transport word dandidates. Once a transport word candidate is identified, the packet length indicator is used to point to the next transport word candidate. Synchronization is declared upon obtaining a parity match for a subsequent transport word candidate pointed to by the packet length indicator. In a specific embodiment, at least two prescribed panty checks are employed to denote a possible transport word candidate. (FIG. 5).
Patent CA-2019475-C (CA)
Inventor: BOURGUIGNON CLAUDE
IPC: C12Q1/42
Filed: 1990-06-21
Granted: 2000-11-28
Abstract: Le procédé consiste: - à établir une corrélation entre, d'une part, la teneur en phosphate alcaline d'une série de sols de référence dont l'activité biologique est jugée satisfaisante et, d'autre part, une autre caractéristique physique et/ou chimique de cette série de sols de référence, par exemple la surface interne de ces sols, - à mesurer la teneur en phosphatase alcaline et ladite autre caractéristique du sol objet de la détermination, et - à comparer les résultats desdites mesures à la corrélation établie à partir des sols de référence.
Patent CA-2020473-C (CA)
Inventor: KAWASHIMA MITSUNOBU
IPC: A61K6/00
Filed: 1990-07-05
Granted: 2000-12-12
Abstract: Provided are polymerizable compositions comprising: (a) a sulfinate represented by the general formula (I]    wherein R1 and R5 each represents a substituent having 2 to 6 carbon atoms, R2, R3 and R4 each represents an atom or substituent inert to the below-described monomer (b), M n+ represents a n-valent cation and n represents an integer of 1 to 4 ; and (b) a monomer. (a) is an aromatic sulfinate substituted with bulky groups at its positions 2 and 6. Since the bulky substituents dramatically suppress the addition of the sulfinate to the double bond of the monomers, e.g. (meth)acrylates, (meth)acrylamides and derivatives thereof, the compositions can be stored at room temperature for at least 1 year and thus are of great industrial value and, in particular very useful as dental adhesive compositions.
Patent CA-2024090-C (CA)
Title: Toilet device with system for inspecting health conditions
Inventor: HIRUTA YOSHIKI
IPC: A47K4/00
Filed: 1990-08-27
Granted: 1995-02-07
Abstract: ABSTRACT OF THE DISCLOSURE     A toilet device with a system for inspecting the health condition of the toilet user includes a toilet having a bowl surface with a urine reservoir for holding a urine sample, a box having at least a water tank disposed rearwardly and upwardly of the toilet, the box having an outlet opening in a bottom thereof, a slider for holding a urine test paper piece, the slider being movable from within the box toward the urine reservoir to immerse the urine test paper piece in the urine sample in the urine reservoir, a urine analyzing device disposed in the box, for analyzing constituents of the urine sample attached to the urine test paper piece, a lifting and lowering mechanism for recipro-cally lifting and lowering the slider through the outlet opening along a substantially vertical inclined path between the urine analyzing device and the urine reservoir, and a display panel for controlling the lifting and lowering mech-anism and the urine analyzing device and for displaying results of a urine analysis effected by the urine analyzing device.
Patent CA-2024176-C (CA)
Inventor: EBERT RICHARD M
IPC: F16H57/02
Filed: 1990-08-28
Granted: 2001-03-06
Abstract: A lubricant retaining device for use with a gear case having a pair of matable sections with an opening therein.
Patent CA-2024799-C (CA)
Title: Multi-laminar mouthguards
Inventor: ADELL LOREN S
IPC: A63B71/08
Filed: 1990-09-06
Granted: 2003-04-15
Abstract: Several embodiments of mouthguards are disclosed. Liners of impression material are disposed in upper and lower troughs of a main body for conformance with tooth impressions. The main body's occlusal wall contains a series of spaced-apart air/saliva ducts extending in a lingual/buccal sense to establish lingual/buccal fluid communication. The liners are joined with the main body by integral connections which extend through holes in the occlusal wall between the two troughs in bridging portions of the occlusal wall that separate the air/saliva ducts. A mouthguard can be made by directly molding liner material onto opposite sides of the main body's occlusal wall. The liner is the same material on the main body but of a lower durometer to form the occlusal wall as a tri-laminar structure which provides unexpectedly superior impact absorption when in use. Further mouthguard embodiments have: a two part main body in which the two parts are exactly identical so that they can be fabricated by the same mold; the main body has internal pockets containing lower durometer material and providing for the attachment of a separate attaching strap; the relative thicknesses of the liner and the main body are varied in particular ways; a bite locator is provided; and the liner forms a significant portion of the buccal wall as a smooth rounded edge.
Patent CA-2035284-C (CA)
Inventor: CRAY STEPHEN EDWARD
IPC: D06M13/02
Filed: 1991-01-30
Granted: 1998-12-22
Abstract: A method of treating fibrous materials comprises applying a polydiorganosiloxane having at least one unit (a) of the general formula          and at least one unit (b) of the general formula      wherein R is a hydroxyl, monovalent hydrocarbon or hydrocarbonoxy group, R' is a divalent hydrocarbon group which optionally contains oxygen and/or nitrogen, R" is a hydrogen atom or an alkyl group optionally containing an oxygen atom in the form of a hydroxyl group and/or a C=O group, a is 1 or 2, b 2 or 3 and each n from 2 to 8.  Treated fibrous materials have improved softness with improved non-yellowing characteristics.
Patent CA-2035504-C (CA)
Title: Process for repairing plastic coatings on metal tubing
Inventor: MARZOLA ROBERTO
IPC: B05D5/00
Filed: 1991-02-01
Granted: 2002-07-23
Abstract: Disclosed is a process for repairing removed or damaged parts of plastic coating on metal tubing characterized in that the coating material or the adhesive for patches or bands is an adhesive polymer composition comprising by weight:      A) from 59% to 94% of polypropylene, propylene/ethylene random copolymer, propylene/ethylene/l-butane random copolymer or mixtures thereof with one or more plastomeric polymers selected from the group consisting of ethylene/vinyl acetate copolymers, LDPE, HDPE, polyamides and polyurethane;      B) from 5% to 40% of a polymer or a mixture of elastomeric polymers selected from the group consisting of EPR, EPDM, SEBS block copolymer, SBS block copolymers and ethylene/ethyl acrylate copolymer;      C) from 1% to 10% of polypropylene modified with from 1 to 10% of maleic anhydride, isophorone bismaleamic acid or acrylic acid; and D) from 0% to 3% of carbon black.
Patent CA-2037267-C (CA)
Title: Superconducting magnetic levitated train, train system method of controlling the same, and superconducting coil for magnetic levitated train
Inventor: TADA NAOFUMI
IPC: B60L13/06
Filed: 1991-02-27
Granted: 1995-10-03
Abstract: The present invention relates to a superconducting magnetically levitated train and train system.  The train includes a plurality of cars connected to each other, a group of superconducting magnets attached to the cars and a coil provided on the ground.  The superconducting magnetically levitated train is levitated by the magnetically induced repulsion between the superconducting magnets and the coil on the ground.  The invention is characterized in that the superconducting magnet on a specified car has a predetermined stability margin which is larger than the stability margin of a superconducting magnet on the other cars.  A method of controlling the superconducting magnetically levitated train is disclosed which includes detecting a driven state of a superconducting magnet on a specified car and varying and controlling the travelling conditions of the train so that the stability margin of the superconducting magnet on the specific car is changed in accordance with the command from a train control means.  A superconducting coil for the superconducting magnetically levitated train is also disclosed.  The coil is a coil of a composite superconducting wire composed of multifilamentary NbTi wire having a low copper ratio.  The outer surface thereof is coated with thin high purity aluminum or the wire accommodates high purity aluminum at the central portion of the cross section thereof.
Patent CA-2044273-C (CA)
Title: Method and apparatus for switching data information through a digital selector
Inventor: HAULIN TORD LENNART
IPC: H04Q3/52
Filed: 1990-10-17
Granted: 2000-03-07
Abstract: The present invention relates to a method and apparatus for through-connecting data information in a digital selector. It is known to use selector memory devices in digital selectors for the purpose of through-connecting data information. When using selector memory devices in accordance with present day techniques, for instance in selectors of the T-S-type (Time-Space), a large number of selector memory devices are required, which results in problems relating to space and effect. The problem is solved by means of the inventive method and arrangement, since one single selector memory device according to the invention replaces several selector memory devices of known kind. According to the inventive method, data information enters a selector memory device distributed on time slots. Data information is written into the selector memory device during one write phase for each time slot. The data information written into the selector memory device is read therefrom during read phases belonging to the time slots, wherein for read-out purposes two or more read phases are arranged for each write phase. Read-out is controlled for each read phase by a separate control memory device.
Patent CA-2051013-C (CA)
Title: Pizza packaging system
Inventor: MONTALBANO HENRY
IPC: B65D85/36
Filed: 1991-09-09
Granted: 1995-05-30
Abstract: A pizza delivery system is provided which combines the use of inexpensive paper bags and flat paperboard trays, with an insulating reusable container that permits pizza to be delivered in a warm, unsoggy condition.
Patent CA-2052783-C (CA)
Title: Ocular implants and methods for their manufacture
Inventor: YAHIAOUI ALI
IPC: A61L27/34
Filed: 1991-10-04
Granted: 1998-02-03
Abstract: An improved method for modifying the surface of an ocular implant material by the gamma or electron beam irradiation induced chemical graft coating thereon of a monomer comprising N-vinyl-pyrrolidone, 2-hydroxyethyl-methacrylate or a mixture of the two to form a hydrophilic graft polymer coating, the improvement comprising pre-soaking the ocular implant material in a monomer or a solution comprising a monomer prior to conducting the gamma- or electron beam-irradiation induced graft polymerization in a second solution of monomer.
Patent CA-2055733-C (CA)
Title: Ion exchange fibers and method for manufacturing the same
Inventor: TAKAI YOUSUKE
IPC: D04H1/42
Filed: 1991-11-18
Granted: 1998-05-26
Abstract: Ion   exchange   fibers   comprising   a   polymer component  having  a  main  chain  of  a   syndiotactic poly(1,2-butadiene)    structure   and   containing   ion exchange functional groups introduced at  least part of side  chain  ethylene  groups.    These  fibers  may  be suitably formed  into a non-woven fabrics,  and thus an ion exchange cloth can be obtained, which  has excellent ion  exchange  capacity,  flexiblity  excellent  processing capacity,  high mechanical strength and elongation.   The ion exchange fibers have excellent ion exchange capacity with respect to fluid such as water or gas and thus can be used as cartridge filters and fiber-filled filters.
Patent CA-2061277-C (CA)
Title: Workpiece holding device for a machine equipment
Inventor: CHEN YEN-HUANG
IPC: B23Q1/03
Filed: 1992-02-14
Granted: 1996-04-16
Abstract: A workpiece holding device is used to retain a workpiece that is to be provided on a rotatable workbench of a machining equipment and includes a clamping assembly that is formed as a hollow sphere having six inner sides which confine a cubic receiving space.  The hollow sphere is divided into a plurality of curved pieces by cutting the hollow sphere along six cutting planes which are coplanar with the six inner sides.  Each of the six inner sides is provided with a plurality of clamping pins which are biased so as to extend into the cubic receiving space and contact the workpiece.  A clamping seat assembly is to be provided on top of the rotatable workbench and confines an accessible spherical receiving space. The clamping assembly is rotatably provided in the spherical receiving space.  The curved pieces are selectively assembled and disassembled so as to expose the side of the workpiece that is to be machined.
Patent CA-2063053-C (CA)
Title: Poke-through fire barrier structure with knock-out openings
Inventor: WUERTZ EMIL S
IPC: H02G3/22
Filed: 1992-03-13
Granted: 2002-05-14
Abstract: A poke-through fire barrier with knock-out fire barrier openings. The structure includes a fire barrier element which is constituted from an intumescent material in the shape of a disc member which is adapted to be installed in a passage or opening formed in a fire-rated floor, and wherein the intumescent disc member incorporates one or more knock-outs for the passage therethrough of insulated conductors or wires.
Patent CA-2069659-C (CA)
Title: Telephone alerter
Inventor: FREEMAN RAYMOND C
IPC: H04M19/04
Filed: 1992-05-27
Granted: 1998-05-05
Abstract: In a telephone alerter a transducer disc is held onto a printed circuit board by an annular housing which is detachable from the board.  The housing has spaced feet which are received through apertures in the board and the housing is then rotated to engage the feet with one side of the board and hold the housing in position.  The transducer disc is easily removed by rotating the housing in the opposite direction to withdraw it from the printed circuit board. Preferably, the disc is retained within the housing by an O-ring retainer which is compressed between the printed circuit board and the disc.  Upon removal of the housing, the disc and retainer may then be immediately withdrawn from the housing.
Patent CA-2070666-C (CA)
Title: Teeth straightening bracket
Inventor: SUYAMA HAJIME
IPC: A61C7/12
Filed: 1990-12-04
Granted: 1996-06-11
Abstract: A teeth straightening bracket comprises a base plate, a wire support disposed on the base plate, and a wire passage groove formed in the wire support for causing a correcting wire to pass therethrough under sliding move-ment.  At least one of  pair of engaging fingers for a binding wire is disposed on both sides of the wire support excepting for both longitudinal ends thereof. Further engaging fingers are preferably disposed on both longitu-dinal ends of the wire support in perpendicular to the longitudinal direction.