baber/WOPTO huggingface dataset:
Patent CA-2010789-C (CA)
Title: Siloxane resins and method for making them
Inventor: BUTLER DEREK W
IPC: C08G77/06
Filed: 1990-02-23
Granted: 1999-01-12
Abstract: Liquid organosiloxane MTQ resins of the general formula [M x T y Q z]n wherein M denotes a monofunctional, T a trifunctional and Q denotes a tetrafunctional siloxane unit is characterised by the fact that n has an average value of from 4 to 14, x+y is not less than z and not more than 2 z and x/y has a value of from 2/1 to 9/1.  The resin molecule has at least one reactive substituent as defined and can be made by a method comprising (I) adding together a tetraalkoxysilane, a monoorganosilane and a triorganosilane or hexaorganodisiloxane in an acidified aqueous medium provided the tetraalkoxysilane is not added to the aqueous medium prior to the other components, (II) allowing the components to react together in said aqueous medium and, optionally (III) further reacting the finished resin with another compound having N atoms.
Patent CA-2019163-C (CA)
Title: Steam injection process for recovering heavy oil
Inventor: JAN RAYMOND JENQ-JYH
IPC: C02F5/02
Filed: 1990-06-18
Granted: 1998-06-23
Abstract: A steam flood recovery process for recovering heavy oil from a producing formation wherein the production stream is processed to separate the produced water from the heavy oil and then the hardness of the water is first reduced to from 10-60 ppm by treatment with caustic and then reduced to less than 1 ppm by flowing it through a weak acid cation resin whereby the water can be used to generate the steam used in the recovery operation.
Patent CA-2020931-C (CA)
Title: Wheel support for trailer axles
Inventor: LAUDSZUN HEINZ
IPC: B60B27/00
Filed: 1990-07-11
Granted: 1994-05-17
Abstract: Abstract of the Disclosure A wheel support for trailer axles is provided and includes tapered-roller bearings disposed on an axle neck; and a hub that is rotatably mounted on the bearings.  The hub serves for the mounting of a brake drum and a wheel, with a thrust washer being disposed between the axle neck and an inner tapered-roller bearing, and with an axle nut being screwed onto an outer thread of the axle neck outwardly of an outer tapered-roller bearing.  To provide a partial preassembly and to simplify the mounting and removal of the wheel support, the thrust washer is secured in the hub via a first snap ring, the axle nut is pro-vided with a collar that extends to the inner wall of the hub, and the axle nut is secured at its collar in the hub via a second snap ring.
Patent CA-2027605-C (CA)
Inventor: BODART PHILIPPE JOSEPH GHISLAI
IPC: B01J20/30
Filed: 1990-10-15
Granted: 2001-05-01
Abstract: The invention relates to a process for treating a spent nickel-based absorbent and for extending the useful life of nickel-based absorbents. The process for treating a spent absorbent material which originally consists of a supported mixture of nickel oxide and metallic nickel comprises the step of heating the spent material under a flow of non-oxidizing gas at a temperature of between 150°C to 450°C.
Patent CA-2027606-C (CA)
Inventor: KREMER DANIEL
IPC: A61B18/00
Filed: 1990-10-15
Granted: 1999-01-05
Abstract: L'invention concerne un dispositif de percussion à ultrasons comportant un générateur à ultrasons auquel est reliée l'extrémité proximale (6A) d'un fil (6) par l'intermédiaire de moyens de liaison (5). Selon l'invention, lesdits moyens de liaison (5) comprennent : - un manchon (7) radialement déformable de façon élastique, recevant l'extrémité proximale dudit fil et pourvu d'une partie évasée (7B) de forme conique ; - un perçage (8) prévu dans un organe (9) solidaire dudit générateur et dans lequel est susceptible d'être introduit ledit manchon, la partie conique (7B) dudit manchon (7) venant au contact d'une paroi conique complémentaire (8B) ménagée dans ledit perçage ; et - un élément de serrage (10) susceptible de coopérer par vissage avec ledit organe (9) et d'agir contre ledit manchon (7).
Patent CA-2032167-C (CA)
Title: Dna coding for protein binds to enhancer of.alpha.-fetoprotein gene
Inventor: MORINAGA TOMONORI
IPC: C12N15/12
Filed: 1990-04-27
Granted: 1998-08-18
Abstract: This invention relates to a DNA coding for a protein that specifically binds to the enhancer of the .alpha.-fetoprotein gene and that promotes transcription of that .alpha.-fetoprotein gene.  This DNA is useful; by applying recombinant DNA technology, for the construction of highly efficient gene expression system for the production of proteins having physiological activities in animal cells.
Patent CA-2034545-C (CA)
Title: Doser-dispenser and process for dosing a pasty and/or liquid product
Inventor: TORTEROTOT ROLAND
IPC: B65B3/12
Filed: 1991-01-18
Granted: 2000-10-31
Abstract: This invention relates to a loser-dispenser comprising a loser unit and at least one dispenser unit.      This loser-dispenser is characterized in that a single loser unit is associated with at least two dispenser units; the outlet of the dosing chamber of said loser unit is connected in parallel to each of the dispensing chambers of at least two dispenser units; the active volume of the dosing chamber corresponds to at least two whole doses of product to be dispensed through at least two distinct dispenser units; it comprises a synchronization device which coordinates the movements of the loser-piston and of the intake flap, with the result that, during delivery of a first dose of product out of the dosing chamber, only the ejection valve of tire first dispenser unit is open, that, during delivery of the second dose of product, only the ejection valve of the second dispenser unit is open, and so on.
Patent CA-2041322-C (CA)
Title: Rapid-setting flowable backfill composition and method of using
Inventor: BENNETT BRUCE H
IPC: E01C11/00
Filed: 1991-04-26
Granted: 2002-10-01
Abstract: The subject invention relates to a rapid-setting self-hardening backfill composition and method of installation. The composition comprising a minor amount of Class C fly ash as a primary constituent and other filler materials such as Class F fly ash in major amount. When such materials are combined with water in controlled amount, they produce a backfilling material which is flowable and self-leveling for easy installation in utility trenches and similar excavations in street and roadway surfaces to support relatively heavy compressive loads within relatively short periods of time without settling. The self-hardening initially flowable mixtures attain considerable strength for withstanding traffic loads without undue settling in time periods of about 4 hours. The rapid-setting of the composition provides a rapidly attainable strength of the order of about 20 psi within about 4 hours to permit overlaying a wearing course of paving material and reopening of excavated areas of streets and roadways without undue traffic delays and congestion. The backfilling composition ranges in amount from about 2 to 10 parts by weight filler material to about 1 part by weight Class C fly ash with sufficient water to react with both Class C fly ash and filler material. The composition utilizes by-products of coal-fired power stations to form a most economical backfilling material and method of utilization to provide both early strength and precisely controlled permanent strength to permit ready reexcavation.
Patent CA-2042852-C (CA)
Title: Procede d'elimination de l'oxygene de l'argon brut
Inventor: CHEN MICHAEL S
IPC: C01B13/02
Filed: 1991-05-17
Granted: 1998-09-22
Abstract: Un procédé est offert pour purifier l'argon, et particulièrement un courant d'argon obtenu par séparation cryogénique de l'air, où l'argon est chauffé et comprimé, puis soumis à une perméation à travers une membrane électrolytique solide sélective pour l'oxygène de préférence à d'autres constituants du gaz, et par élimination de l'oxygène de l'argon par perméation sélective de l'oxygène à travers la membrane. L'argon purifié peut alors être distillé pour enlever les autres constituants comme l'azote.
Patent CA-2047791-C (CA)
Title: Dyeable hot-bulked polypropylene fibers modified with a copolyamide
Inventor: TIETZ RAYMOND F
IPC: D01D5/22
Filed: 1991-07-24
Granted: 2001-09-11
Abstract: Dyeable fibers are formed from polypropylene by blending a major portion of polypropylene with a minor portion of 1) a copolymer of nylon 6,6 and substantially equimolar amounts of hexamethylene diamine and an alkali metal salt of 5-sulfoisophthalic acid or 2) a basic reaction product of substantially equimolar amounts of N-(2-aminoethyl) piperazine and adipic acid, hexamethylene diamine and adipic acid and optionally .epsilon.-caprolactam. The blend is formed in an extruder and extruded into filaments which are quenched in air, stretched 2-4 x (preferably at an elevated temperature) and bulked using a jet of heated turbulent fluid. The thusly bulked filaments are then dyed.
Patent CA-2048053-C (CA)
Title: 2-amino-4-fluoroalkoxy-1,3,5-triazines and the preparation thereof
Inventor: HAMPRECHT GERHARD
IPC: C07D251/42
Filed: 1991-07-29
Granted: 2000-12-12
Abstract: Abstract of the Disclosure: 2-Amino-4-fluoroalkoxy-1,3,5-triazines of the formula I    where R1 is hydrogen, alkyl, alkenyl, alkynyl; R2 is hydrogen, halogen, haloalkyl, trifluoromethoxy or chloro-difluoromethoxy and n is 0 or 1 are prepared as described.
Patent CA-2048247-C (CA)
Title: Leadframe-based optical assembly
Inventor: MURPHY EDMOND JOSEPH
IPC: G02B6/42
Filed: 1991-07-31
Granted: 1995-10-24
Abstract: A leadframe-based optical assembly is disclosed which is suitable for use with either transmitter or receiver optical assemblies. The leadframe includes a number of separate sections, each leadframe section being associated with a separate optical assembly. A particular leadframe section includes a first contact lead with an aperture therethrough such that the active region of the optical may be aligned with the aperature.  A first electrical connection is made between the first lead and the optical device surface containing the active region. The remaining electrical connection is provided by a second contact lead which is wire bonded to the opposing surface of the optical device. A fiber section (fiber-containing ferrule) is attached to the opposite side of the leadframe in the vicinity of the first contact aperture to provide coupling between the optical fiber and the active region. Lensed fibers and/or semiconductor optical devices may be used to increase coupling efficiency.
Patent CA-2049415-C (CA)
Title: Fume hood sash sensing apparatus
Inventor: SHARP GORDON P
IPC: F24F7/00
Filed: 1991-08-16
Granted: 1999-12-28
Abstract: This invention provides apparatus for sensing the extent to which the sash or sashes covering the access opening of a fume hood are open. The apparatus includes a source of electromagnetic energy at a selected AC frequency below 10 6 MHz, with a preferred frequency range being from 10 KHz to 100 KHz. The source preferably includes a wire coil connected to an, oscillator of the selected frequency with the detector for the AC signal also preferably including a wire coil. Suitable elements are also provided for controlling the amount of electromagnetic energy from the source wire coil which reaches the detector wire coil as a function of sash opening. For the various embodiments, the apparatus may be arranged (a) with either one or both of the coils mounted in a fixed bar, control elements being mounted to the sashes; (b) with both coals mounted to sashes; or (c) with a single coil, either fixedly mounted or mounted to a sash, being used as both the source and detector coil, control elements being selectively mounted to the sashes. Embodiments which are variations on the three basic types discussed above are also provided.
Patent CA-2050789-C (CA)
Inventor: SAITO HITOSHI
IPC: B41M5/50
Filed: 1991-09-06
Granted: 1996-08-27
Abstract: A  thermal  transfer  image  receiving  sheet  includes substrate sheet  and a dye  receptor  layer  disposed on at least one surface side of the substrate sheet, wherein the dye receptor layer has been formed on the substrate sheet by superposing  the  substrate  sheet  onto  a  receptor  layer transfer  film-comprising  a  substrate  film  and  the  dye receptor layer disposed on one surface side thereof which is peelable from the substrate film, so that the receptor layer transfer film is bonded to the substrate sheet  to form a laminate, and peeling the substrate film from the laminate.    The  thermal  transfer sheet  also  includes a substrate film, an intermediate layer disposed on the substrate film, and a dye layer disposed on the substrate film by the medium of the intermediate layer, wherein the dye layer comprises a dye and a binder resin, and at least one of the intermediate layer and the dye layer contains bubbles.
Patent CA-2051180-C (CA)
Title: Application independent (open) hypermedia enablement services
Inventor: BERNSTEIN KEITH
IPC: G06F3/0482
Filed: 1991-09-11
Granted: 1995-12-19
Abstract: A  set of hypermedia  linking  services  enable  client applications to incorporate hypermedia capabilities in an open system architecture.   The users are provided with a consistent hypermedia interface completely managed by the hypermedia  services  and  not  by  the  client  application itself.  The graphical user interface includes methods for menu handling, dialog box presentation and pointing device message  handling,  e.g.,  mouse  message  handling.   Normal hypermedia  activities  such  as  object management,  object creation,  object  deletion  and  object  modification  is provided.
Patent CA-2060103-C (CA)
Title: Vapor canister with liquid trap
Inventor: TURNER KENNETH W
IPC: F02M33/02
Filed: 1992-02-14
Granted: 1999-07-06
Abstract: A fuel vapor storage canister that contains a trap housing with a separating chamber to capture the liquid component of the fluid from the tank.  The trap housing is designed so that the canister can be installed in the vehicle in a number of possible orientations while still isolating the liquid component from the adsorbent bed of the canister.
Patent CA-2066881-C (CA)
Title: Railroad car truck damping member
Inventor: BULLOCK ROBERT L
IPC: B61F5/12
Filed: 1992-04-22
Granted: 2001-01-02
Abstract: A friction casting for use in a railroad car truck between a side frame column and a bolster pocket slanted wall has a slanted wall to face and be in contact with the bolster pocket slanted wall and a vertical face in contact with the aide frame column. The friction casting has a hollow interior, except for a support rib which is perpendicular to the slanted wall of the casting and supports the slanted wall of the casting generally at the zone of contact with the bolster pocket slanted wall.      The support rib transfers the load from the slanted face of the friction casting to the vertical face of tha friction casting generally at the center of pressure thereof.
Patent CA-2068009-C (CA)
Inventor: AMES RICHARD NORMAN
IPC: H04W88/08
Filed: 1992-05-05
Granted: 1998-05-19
Abstract: Methods and apparatus are set forth which enable a radio frequency data communications network (1) to perform decentralized uplink network control functions (decentralized away from the centralized general communications controller (GCC) level of the network hierarchy); (2) to minimize, or in some cases eliminate, the overhead expended in making power lever (signal strength) determinations andassessments at both the GCC and base station levels of the network hierarchy (for the purpose of managing uplink communications); and (3) to allow individual subscriber radios (terminals) to dynamically determine the most desirable base station to communicate with when exchanging information a host computer via a shared RF communication channel (the link between a terminal and the base station). Additionally, an illustrative radio frequency data communication network, built in accordance with the teachings of the invention as a modified version of an existing network, is described where the modified network incorporates the aforementionedmethods and apparatus.
Patent CA-2069035-C (CA)
Title: Friction modifiers
Inventor: CHIDDICK KELVIN SPENCER
IPC: C10M169/04
Filed: 1992-05-20
Granted: 1999-08-03
Abstract: Friction  modifiers  are  compositions  which modify the coefficient of friction between surfaces to which the friction modifier  is  applied.   They  are similar  in nature to  lubricants  but have different characteristics in certain respects.   The  invention relates particularly to solid friction modifiers which may be rigid or flexible.   These friction modifiers comprise 20-80% by weight of a polymer medium, 5-20% by weight of a solid lubricant and 15-60% by weight of a friction  enhancer.     The  coposition  produces  a coefficient of friction which rises to above 0.20 at creepage levels up to 2.5% between steel bodies  in rolling-sliding   contact   lubricated   using   the composition.
Patent CA-2069508-C (CA)
Title: Method and apparatus for measuring fibre flexibility
Inventor: FRANSSON PER-IVAR
IPC: G01N15/00
Filed: 1991-09-25
Granted: 2001-02-27
Abstract: A method for measuring the flexibility of fibres, particularly cellulose fibres, in a flowing suspension. The fibre form of a large number of fibres is registered at two different pictures of suspension flow. A predefined fibre form is calculated for each flow picture, and a relationship; for example the quotient between two measurements of mean fibre form is determined and utilized to define fibre flexibility. The invention also relates to an arrangement for carrying out the inventive method; wherein the arrangement includes a flow-through container (20) through which the suspension flows, a transparent window (26) mounted in the container wall, a CCD-type camera (30) which functions to photograph fibres passing the window, a picture analysis unit (34) coupled to the camera (30), and a data processing unit (36) for processing information obtained from the picture analysis unit (34).
Patent CA-2070470-C (CA)
Inventor: BOEHM LUDWIG
IPC: C08L23/06
Filed: 1992-06-04
Granted: 2002-07-30
Abstract: A polyethylene molding composition which consists of 50 to 80 % by weight of a HD polyethylene having a very broad bimodal molecular mass distribution and 20 to 50 % by weight of a chemical LLD polyethylene or LD poly-ethylene gives pipes, plates and sheets which have very good long-term and low-temperature characteristics.
Patent CA-2073427-C (CA)
Title: Apparatus for projecting artificial horizon viewable by peripheral vision
Inventor: BURKHARDT DONALD
IPC: G01C15/14
Filed: 1991-10-24
Granted: 1995-06-20
Abstract: Apparatus for projecting an elongated light bar (95) representing an artificial horizon on an interior surface of an aircraft cockpit (94) in front of a pilot of the aircraft with respect to a reference datum line (H) on the interior surface of the cockpit. A vertical reference means, located in the cockpit or remotely therefrom maintains a vertical reference axis for all attitudes of the aircraft. A light beam source (12), which may be a laser beam, is aligned with a moveable optical system having mirrors (26, 40) or lenses to convert the light beam to a plane of light. A mechanical linkage (75) or a servomotor (132, 136) coupled between the ver-tical reference means and the optical system controls the optical system, so that the datum line (H) appears stationary and the light bar (95) seems to turn angularly and move vertically when the aircraft rolls and pitches.
Patent CA-2075000-C (CA)
Title: Home brewer
Inventor: ANSON JAMES H
IPC: A47J31/56
Filed: 1992-07-30
Granted: 1995-05-30
Abstract: A beverage brewing apparatus which employs a water control assembly, a moisture recovery assembly, an improved thermostatic and low water sensor configuration and an easily removable sprayhead.  The control assembly controllably regulates the flow of water from the fill basin into the reservoir using a valve which is interconnected with a lid covering a fill opening in the hood portion.  Water from the basin will not flow into the reservoir, and thus will not produce a brewed beverage, until the lid is closed by the user.  The moisture recovery assembly employs a baffle opening and a collection portion on a vent to return condensation which may accumulate on the vent to the fill basin.  A sleeve is positioned in the fill water opening in the hood portion to collect condensation and to reduce the surface area of the water which may be affected by air movements through the brewing apparatus.  The thermostatic and low water sensing configurations position the temperature sensors outside of the water heating reservoir to prevent the accumulation of mineral and other deposits thereon.  A portion of the wall behind which the sensors are positioned is thinned in order to more accurately read the corresponding temperatures.
Patent CA-2077096-C (CA)
Inventor: IWAKI YOSHIHISA
IPC: F16H61/02
Filed: 1992-08-28
Granted: 1998-02-03
Abstract: A  system for controlling a multi-step geared or continuously variable automatic transmission in which a gear ratio to be shifted to is determined by retrieving a conventional preestablished shift diagram by an engine load and a vehicle speed.  A fuzzy reasoning is carried out using parameters such as a driving resistance to correct the gear ratio obtained by retrieved.  Alternatively, the fuzzy reasoning is carried out to correct one of the engine load and vehicle speed detected and using the corrected value, the shift diagram is retrieved to determine a gear ratio to be shifted to.  Further,  another fuzzy reasoning is carried out to ascertain the driver's intention to decelerate and the first fuzzy reasoning is carried out using the inferred value so as to reflect the driver's intention in the shift control.
Patent CA-2077421-C (CA)
Inventor: TAKASAKI YOSHITAKA
IPC: H02G9/00
Filed: 1992-09-02
Granted: 1997-11-25
Abstract: Système de distribution pour établir des tracés d'installation pour le passage de câbles ou fils dans un secteur répartiteur de distribution venant d'un point central et s'étendant extérieurement à plusieurs secteurs de distribution. Chaque secteur de distribution a une pluralité de postes d'abonné avec des lignes d'abonné s'étendant entre un point de distribution pour le secteur de distribution et chacun des postes. Les points de distribution pour chacun des secteurs de distribution sont raccordés au point central des secteurs répartiteurs de distribution par des lignes d'alimentation. Les tracés d'installation qui s'étendent à travers les secteurs de distribution adjacents au point central ont des lignes d'alimentation et des lignes d'abonné. Il en résulte que la longueur totale du réseau des tracés d'installation est diminuée par la mise en commun des tracés d'installation. En outre, le point de distribution pour chacun des secteurs de distribution est choisi de façon à être le plus rapproché du point central du système de distribution.
Patent CA-2077650-C (CA)
Title: Fatty alcohol alkoxylate
Inventor: COOK IAIN
IPC: C08F36/04
Filed: 1990-11-23
Granted: 2001-07-31
Abstract: A compound of formula (I) where R, which may be the same or different, is selected from at least one of hydrogen, methyl, ethyl and phenyl, at least one R on each -OCHR-CHR- unit being hydrogen; where m is an integer selected from 1-100; where n is an integer selected from 8 and 9. The preferred process of preparation is by the reaction of alkylene oxide with linoleyl alcohol in the presence of a catalyst which is a Bronsted base. The compounds are useful as reactive surfactants in aqueous emulsion po-lymerisation processes.