baber/WOPTO huggingface dataset:
Patent CA-2012528-C (CA)
Title: Infrared thermometry system and method
Inventor: BECKMAN KENNETH A
IPC: G01J5/06
Filed: 1990-03-19
Granted: 1996-03-05
Abstract: A biomedical thermometer for taking the tempera-ture of a person at various body sites, including the ear,  includes  a  radiation  detector,  a  temperature detector for measuring the temperature of the radiation detector, and a heating and cooling unit for changing the temperature of the radiation detector.  The system also includes a temperature processor for generating an output proportional to the absolute temperature of the radiation detector, responsive to signals generated by the radiation detector and the temperature detector.
Patent CA-2019060-C (CA)
Title: Process for preparing elastomeric polyurethane or polyurethane-urea polymers prepared using low unsaturation polyethers
Inventor: PORTER JAMES R
IPC: C08G18/65
Filed: 1990-06-15
Granted: 2002-11-12
Abstract: A process is disclosed for preparing a polyurethane or polyurea elastomer by reacting in a closed mold a reaction mixture comprising a polyisocyanate and a relatively high equivalent weight polyether. The process is characterized by employing as said polyether a polymer or copolymer of propylene oxide having at least two hydroxyl groups per molecule, an equivalent weight from 1000 to 5000 and a monofunctional species content of about 0.04 milliequivalents/gram of polymer or less.
Patent CA-2021029-C (CA)
Title: Pest control with pyrimidines
Inventor: BRAND SIEGBERT
IPC: C07D239/38
Filed: 1990-07-12
Granted: 2000-06-27
Abstract: Methods of combating pests with substituted pyrimidines of the formula I   (see formula I) where R1 is alkyl, cycloalkyl, haloalkyl, alkoxy, alkylthio or substituted or unsubstituted aryl, R2 is halogen or hydrogen, A is oxygen or sulfur, and X is CH or N, and pyrimidines of the general formula Ia (see formula II) where A is oxygen or sulfur and X is CH or N, and pesticides containing these compounds.
Patent CA-2022082-C (CA)
Title: Solenoid operated flush valve and flow control adapter valve insert therefor
Inventor: SHAW DANIEL C
IPC: F16K31/40
Filed: 1990-07-26
Granted: 1997-02-04
Abstract: A solenoid operated flush valve has a main flush valve body including water inlet and outlet means.  The main flush valve body includes generally horizontally extending nipple means which is in fluid communication with the water inlet and outlet means.   A flow control means is removably mounted within the nipple means and includes valve insert means and solenoid means in cooperative engagement with the valve insert means.  The valve insert means includes first and second ends and  a  side.    The valve  insert means  includes  a  first passageway extending axially between the  first and second ends thereof and a second passageway extending between one of the first and second ends and the side of the valve insert means.  The second passageway is in fluid communication with the water outlet means through the side of the valve insert means.    Means  cooperate  with  the  solenoid  means  for selectively blocking the second passageway to thereby regulate the flow of water flushing through the flush valve.
Patent CA-2023988-C (CA)
Title: Platinum catalyst composition, method for its preparation and curable organopolysiloxane composition containing it
Inventor: SARUYAMA TOSHIO
IPC: B01J31/16
Filed: 1990-08-29
Granted: 1998-07-07
Abstract: A platinum catalyst composition having improved thermal stability, and all of the utilities of platinum catalyst compositions of the art, is provided by mixing certain organosiloxanes which contain aryl and alkenyl groups, such as 1,3-divinyl-1,3-diphenyldimethyl-disiloxane, in a quantity of at least 2 moles, with a platinum complex having as a ligand an organosiloxane which contains alkyl and alkenyl groups, such as 1,3-divinyltetramethyldisiloxane (or a mixture of said platinum complex and said organosiloxane), in a quantity of 1 mole of platinum atoms.  In a preferred embodiment the mixture is distilled in vacuo to remove part or all of the organosiloxane which contains alkyl and alkenyl groups, and most preferably to remove at least a portion of the complexed organosiloxane which contains alkyl and alkenyl groups.
Patent CA-2024945-C (CA)
Title: Cold-rolled steel sheet for deep drawing and method of producing the same
Inventor: MATSUOKA SAIJI
IPC: C21D8/04
Filed: 1990-09-10
Granted: 1994-01-04
Abstract: ABSTRACT OF THE DISCLOSURE    A cold-rolled steel sheet suitable for deep drawing has a composition containing up to about 0.005 wt% of C, up to about 0.1 wt% of Si, up to about 1.0 wt% of Mn, up to about 0.1 wt% of P, up to about 0.05 wt% of S, about 0.01 to 0.10 wt% of A?, up to about 0.005 wt% of N, one, two or more elements selected from the group consisting of about 0.01 to 0.15 wt% of Ti, about 0.001 to 0.05 wt% of Nb and about 0.0001 to 0.0020 wt% of 8, and the balance substantially Fe and incidental impurities.  The steel sheet exhibits a Lankford value (r-value) of about ? ? 2.8 and also exhibits the difference (rmax - rmin) between the maximum value rmax and the minimum value rmin satisfying the condition of (rmax - rmin) ? about 0.5.  The steel sheet is produced by a process having the steps of: conducting hot-rolling on the steel material of the above-described composition; conducting a primary cold rolling at a rolling reduction not smaller than about 30%; conducting intermediate annealing at a temperature ranging between the recrystallization temperature and about 920°; conducting secondary cold rolling at a rolling reduction not smaller than about 30% so as to provide a total rolling reduction not smaller than about 78%; and conducting final annealing at a temperature which is between the recrystallization temperature and about 920°C.
Patent CA-2030162-C (CA)
Title: Benzothiazepines
Inventor: BORCHERDING DAVID R
IPC: C07D417/06
Filed: 1990-11-16
Granted: 2001-07-24
Abstract: Certain 1,5-benzothiazepines having the general formula:      are useful intermediates or pharmaceuticals which can possess activity as antidepressants, tranquilizers and/or coronary vasodilators. Certain of the compounds are effective as anti-cancer drug potentiators and/or ameliorators for generalized tonic-clonic epileptic type seizures in mammals.
Patent CA-2030792-C (CA)
Title: Perfluorovinyl compounds
Inventor: BABB DAVID A
IPC: C07C43/225
Filed: 1990-06-04
Granted: 2001-08-21
Abstract: The present invention is directed to a compounds having at least two perfluorovinyl groups and having a structure represented by the following Formula I:        Formula I        CF2=CF-X-R-(X-CF=CF2)m wherein R represents an unsubstituted or inertly substituted hydrocarbyl group; each X is independently selected from the group consisting of groups having at least one non-carbon atom between R and -CF=CF2; and m is an integer of from 1 to 3. Polymers formed from such compounds are also prepared. The compounds are preferably prepared by a method by a process comprising the steps of: (a) forming a salt having anion corresponding to a compound of the following Formula II:     Formula II        HX-R-(XH)m;     wherein X, R and m are as defined for Formula I; (b) reacting the salt formed in step (a) with a 1,2-dihalo-1,1,2, 2-tetrafluoroethane wherein the halo groups are iodine, bromine, chlorine or mixtures thereof, at least one halo group being bromine or iodine, to form a compound of the following Formula III:        Formula III        Z-CF2CF2-X-R-(X-CF2CF2-Z)m wherein X, R and m are as defined for Formula I and each Z is independently iodine or bromine; and (c) eliminating the halogen atoms represented by Z to form the perfluorovinyl compound represented by Formula I.
Patent CA-2033266-C (CA)
Title: Method of manufacturing oxide superconducting wire
Inventor: MUKAI HIDEHITO
IPC: H01B13/00
Filed: 1990-12-27
Granted: 1998-04-14
Abstract: An oxide superconducting wire is obtained by performing plastic working and heat treatment of a metal pipe which is filled up with raw material powder of an oxide superconductor.  In the plastic working step, the metal pipe is subjected to flat working so that the raw material powder flows in the longitudinal direction as well as the cross direction in the metal pipe.  In this case, a draft of at least 80 % and not more than 98 % is selected in the flat working step, to further promote the cross-directional flow of the raw material powder, thereby further improving density of the raw material powder.          Thus, the as-formed oxide superconducting wire exhibits higher critical current density.
Patent CA-2034783-C (CA)
Title: Wound evacuator
Inventor: WINKLER DUANE K
IPC: A61M1/00
Filed: 1991-01-23
Granted: 2001-03-13
Abstract: A wound evacuator is provided with a discharge valve assembly which permits body fluid contained within the wound evacuator to be drained to a collection bag. The discharge valve assembly is also designed to minimize leakage of body fluid when the collection bag is separated from the wound evacuator.
Patent CA-2036883-C (CA)
Title: Drill head with integral impact hammers
Inventor: MASSE ROGER F
IPC: E21B1/30
Filed: 1991-02-22
Granted: 2003-12-02
Abstract: A drill head is disclosed, for use to drill a hole in a front of hard material such as rock, which comprises a main body acting at a central support, an upwardly projecting spindle secured on top of the main body, the spindle having a vertical axis, a fixation head on top of the spindle for detachably connecting it to a drill shaft operable in use to rotate the drill head about the vertical axis of the spindle and to pull it up toward the front hard material to be drilled, and at least two impact hammers mounted onto the main body in such a manner as to fragment, in use the hard material of the front along at least one circular path centered onto the vertical axis, each impact hammer having a hollow casing, a pneumatically-operated, impact generating assembly enclosed within the casing, and a drill bit actuated by the impact-generating assembly. Advantageously, the hollow casings of the impact hammers are integral with the main body and form therewith a single structural piece, the central cavities of the hollow casings consisting of longitudinal holes made in this single piece and extending in directions substantially parallel to the vertical axis of a spindle at short distances from this axis. The drill bit of each impact hammer is preferably mounted in an upper sub-member screwed on top of the corresponding hole provided in the single piece, in such a manner as to be free to rotate therein. A torsion spring may be mounted externally around the upper sub-member in such a manner as to prevent inadvertantly unscrewing from the hole.      The main advantage of the above mentioned features is that they improve the life expectancy of the drill head and, more particularly, of its impact hammers.
Patent CA-2037690-C (CA)
Title: Method for reducing methane exhaust emissions from natural gas fueled engines
Inventor: SIEWERT ROBERT M
IPC: F02B1/04
Filed: 1991-03-07
Granted: 1994-05-17
Abstract: METHOD FOR REDUCING METHANE EXHAUST EMISSIONS        FROM NATURAL GAS FUELED ENGINES            Abstract of the Disclosure High conversion efficiencies for methane, other unburned hydrocarbons, carbon monoxide and nitrogen oxides can be obtained from a natural gas or methane fueled engine by operating the engine with an air-fuel ratio within a range that includes the stoichiometric air-fuel ratio and extends to the fuel-rich side and by employing in combination with the engine a platinum or platinum and palladium noble metal catalyst for treatment of the engine exhaust gases.
Patent CA-2042003-C (CA)
Inventor: GRENIER MAURICE
IPC: B01D53/26
Filed: 1991-05-07
Granted: 2001-07-10
Abstract: Suivant ce procédé, l'air comprimé est refroidi puis épuré par adsorption par passage dans un premier sens à travers une masse d'adsorbant, puis un gaz résiduaire de l'installation de distillation traverse cette masse en sens opposé pour la régénérer. Le gas résiduaire est, pendant toute la régénération, à une température de régénération constante comprise entre la tempréature de l'air entrant dans la masse d'adsorbant et une température supérieure de 50.degree.C environ à cette température. Application aux installations de production d'oxygène et/ou d'azote.
Patent CA-2055549-C (CA)
Title: Recovering hydrocarbons from tar sand or heavy oil reservoirs
Inventor: ONG TEE SING
IPC: E21B43/24
Filed: 1991-11-14
Granted: 2002-07-23
Abstract: Method of recovering hydrocarbons from an underground tar sand reservoir or heavy oil reservoir (5) comprising (a) drilling and completing a first pair (6) of wells and a second pair of wells (7), each pair comprising an injection well (9 and 14) terminating in the reservoir (5) and a production well (13 and 18) terminating in the reservoir (5) below the injection well (9 and 14); (b) circulating steam through the injection wells (9 and 14) and performing alternate steam injection and hydrocarbon production through the production wells (13 and 18); and (c) injecting steam through the injection wells (9 and 14) while producing hydrocarbons through the production wells (13 and 18), wherein the injection pressure of the injection well (9) of the first pair (6) of wells is greater than the injection pressure of the injection well (14) of the second pair (7) of wells.
Patent CA-2057949-C (CA)
Title: Display device
Inventor: KILLINGER ERICH
IPC: G02B6/36
Filed: 1991-12-18
Granted: 1999-01-05
Abstract: The invention relates to a display device with a plurality of indicator spots, each display point being formed by the front end of a illuminated optical fiber.  The number of indicator spots for a large area display which is being viewed from a greater distance can be considerably reduced in that a light collector is fixed in front of the end of each optical fiber of a message board, which has a round cross section greater than the cross section of the optical fiber and which forms a convexly arched section of a given radius facing the end of the optical fiber and which is supplied with a circular phase facing away from the end of the optical fiber, which is at a given angle in respect to the central axis of the indicator spot, that the light collector extends away from the message board with the section formed by the phase and that the front of the light collector facing away from the optical fiber is roughened.
Patent CA-2060804-C (CA)
Title: Cigarette-lighter-extinguisher-cigarette holder with or without butt ejector
Inventor: CARDENAS LUIS P
IPC: A24F13/16
Filed: 1992-02-06
Granted: 1999-10-05
Abstract: Holder of cigarette lighter with a cup for a cigarette holder that works as a cigarette extinguisher device as well as collects the ashes of a cigarette and at the end extinguishes the cigarette butt. This device or invention can be made of plastic, metal or combination of any material that is not combustible. The dimensions of the device can vary but is approximately of 32 mm long by 12 mm wide by 35 mm high. The cup is approximately in diameter of 11 mm by 31 mm high with an entrance wide of the top ring to get easy access for the cigarette approximately of 16 mm of diameter ring made with a shape coniferous for the easy access of the cigarette into the cup.
Patent CA-2062569-C (CA)
Title: Protruding end stops for plastic reclosable fastener
Inventor: HERRINGTON FOX JOHN JR
IPC: B31B19/90
Filed: 1992-03-10
Granted: 2002-02-19
Abstract: A fastener structure for thermoplastic bags, comprising: a pair of flexible plastic strips adapted to be secured to the facing side walls along the mouth of a thermoplastic bag; reclosable interlocking male and female profile elements on the respective strips; and a slider adapted to open and close the male and female profile elements; and end stops located at the opposite ends of the reclosable fastener.      Each of the end stops is formed from the material at the opposite ends of said reclosable fastener and protrudes from said fastener a distance adequate to engage the slider, and to prevent movement of the slider past the respective ends of the bag.
Patent CA-2064763-C (CA)
Title: Resonant cavities for nmr
Inventor: MANSFIELD PETER
IPC: G01N24/08
Filed: 1990-08-10
Granted: 2001-03-27
Abstract: A resonant array for NMR for use at high frequencies, the array comprising two identical end structures and a plurality of continuous rods joining the identical end structures to comprise a plurality of .pi. or T electrical circuit sections, the continuous rods being of electrically conductive material; the continuous rods thereby supporting the end structures a predetermined distance apart.
Patent CA-2066945-C (CA)
Inventor: POLI STEFANO
IPC: A61K9/00
Filed: 1992-04-23
Granted: 2004-06-22
Abstract: A liquid pharmaceutical composition which can be administered as a foam by means of suitable supplying devices, without necessity of gas propeller, said composition consisting of: a) one or more natural or synthetic ionic or non ionic, acid, basic or neutral surfactants; b) a solvent or a solvent mixture; c) an active ingredient or a combination of active ingredients; d) optional adjuvants or excipients.
Patent CA-2068186-C (CA)
Title: Load current commutation circuit
Inventor: HOWELL EDWARD KEITH
IPC: H03K17/08
Filed: 1992-05-07
Granted: 2003-02-11
Abstract: Arrangement for arcless interruption of a-c load current in response to a current interruption command. Separable contact means serially connected with controlled impedance means, and parallel connected diversion means are intermediate the a-c source and the load. The controlled impedance comprises field effect transistors (FETs). Since FETs usually have only a single inherent function, at least a pair of the Fets are oppositely poled so that load current can be cut off notwithstanding the direction of current flow when interruption is commanded. The pair of FETs may be connected back to back.        An alternative embodiment has two branch circuits each comprising a FET and a separable contact means. Upon interruption load current is sequentially transferred from one to the other branch circuit and then to the diversion means.
Patent CA-2070099-C (CA)
Title: Freestanding mixed tuned steam turbine blade
Inventor: BROWN WILMOTT GEORGE
IPC: F01D5/30
Filed: 1992-05-29
Granted: 2004-04-20
Abstract: A freestanding mixed tuned taper-twisted steam turbine blade having an X-X axis parallel to a rotor axis, includes a root portion having a root center line defined by a root center line radius, a platform portion connected to the root portion; and an airfoil portion connected to the platform portion and having a leading edge, a trailing edge, a convex section-side surface, a concave pressure-side surface and a profiled tip, the platform portion having a concave edge, a convex edge, a first end in vertical proximity to the leading edge of the airfoil portion and a second end in vertical proximity to the trailing edge of the airfoil portion, the concave edge being sloped towards the root center line radius at a predetermined angle of slope to define an arcuate sloped surface, and having a sloped flat cut-out surface formed at the second end of the platform portion, the flat cut-out surface having the same predetermined angle of slope as the concave edge and sloping towards the X-X axis.
Patent CA-2075052-C (CA)
Title: Hla dqbeta dna typing
Inventor: ERLICH HENRY A
IPC: C12N15/09
Filed: 1991-12-20
Granted: 2006-08-22
Abstract: Primers for amplification of specific nucleic acid sequences of the second exon of HLA DQB1 genes and probes for identifying polymorphic sequences contained in the amplified DNA can be used in processes for typing samples from a variety of sources and for detecting allelic variants not distinguishable by serological methods. This HLA DQB1 DNA typing system can be used in a dot blot format that is simple and rapid to perform, produces detectable signals in minutes, and can be used for tissue typing, determining individual identity, and identifying disease susceptible individuals.
Patent CA-2076483-C (CA)
Title: Method of producing grain oriented silicon steel sheet having low iron loss
Inventor: NISHIIKE UJIHIRO
IPC: C22C38/60
Filed: 1992-08-20
Granted: 1997-10-14
Abstract: A method of producing a grain oriented silicon steel sheet is adapted to lower the iron loss.  A silicon steel slab, containing about 2.0 to 4.0 weight % of Si and an inhibitor-forming amount of S,  or Se,  or both,  is hot rolled.  After the hot rolled steel sheet is annealed when necessary,  the steel sheet is cold rolled into a cold rolled steel sheet having a final thickness by performing cold rolling either one time or a plurality of times with intermediate annealing therebetween, the cold rolled steel sheet then being subjected to decarburization, coating of the surface of the steel sheet with an annealing separation agent mainly comprising MgO, secondary recrystallization annealing, and purification annealing.  In the cold rolling step, an oxide layer exists on the surface of the steel sheet.  Specifically, in the cold rolling step, rolling oil is supplied only at the entrance of the rolling mill used, and an oxide layer having a thickness of about 0.05 to 5 µm is generated.  Or, an outer oxide layer of an oxide layer structure generated on the surface of the steel sheet after hot rolling or intermediate annealing, is removed, and an inner oxide layer of a thickness of about 0.05 to 5 µm is maintained on the surface, the resultant steel sheet then being subjected to cold rolling.
Patent CA-2080457-C (CA)
Title: A binder composition and its use for the production of a coating or sealing composition
Inventor: BLUM HARALD
IPC: C08G18/08
Filed: 1992-10-13
Granted: 2003-06-17
Abstract: The present invention relates to an aqueous binder composition containing A) an aqueous solution or dispersion of a water-dilutable organic polyol component containing A1) at least one water-dilutable polyester resin containing sulfonate and hydroxyl groups and having a molecular weight (M n) of 500 to 50,000, an OH number of 20 to 240 mg KOH/g, a content of sulfonate groups (-SO3-) of 4 to 70 milliequivalents per 100 g of polyester resin and a content of carboxylate groups (-COO-) of 0 to 40 milliequivalents per 100 g of polyester resin and A2) optionally a reactive thinner containing at least one water-soluble monohydric or polyhydric alcohol which has a molecular weight (M n) below 500 and which is non-distillable at normal pressure or has a boiling point of at least 150°C, and B) a polyisocyanate component which is emulsified in the aqueous solution or dispersion A), has a viscosity at 23°C of 50 to 10,000 mPa.s and contains at least one organic polyisocyanate, wherein components A) and B) are present at an NCO:OH equivalent ratio of 0.5:1 to 5:1.     The present invention also relates to a process for the production of a coating or sealing composition containing this aqueous binder.
Patent CA-2082395-C (CA)
Title: Packaging process and apparatus
Inventor: BOYHAN LAURENCE ANTHONY
IPC: B65B5/06
Filed: 1991-05-10
Granted: 2002-01-15
Abstract: Apparatus and process in which one plate, or several ac-curately superimposed plates (10, 16) carry items (12, 18) to be packaged. On inversion of the plates, items either fall directly in-to the voids of a partitioned box (26) or fall into individual pack-ages held by a plate, which packaged items are then ejected by pushrods, etc. into a single box. A plate may have cut-away por-tions (e.g. V-shaped grooves) which receive upstanding edges or partition walls of a box to accurately register box with plate (and contents) and nest the box into the plate to achieve configura-tion-accurate inversion of the items to be packaged.