baber/WOPTO huggingface dataset:
Patent CA-2083191-C (CA)
Title: Spring return rotary actuator
Inventor: STUHR LESLIE P
IPC: F16K31/04
Filed: 1992-11-18
Granted: 2002-07-02
Abstract: A rotary actuator uses a two degree of freedom gear train with three torque members to provide torque to the output element from a first torque member. The torque is supplied to a second torque member from a drive motor. A torsion spring on the third torque member is normally wound tight and held wound by a brake which locks the third torque member during normal operation when electrical power is available for the drive motor. When power is lost, the brake releases the third torque member, allowing the spring to apply torque to the third torque member to drive the output element through the first torque member to a return position. This allows loads such as valves to be returned to a safety condition upon loss of electrical power to the system of which the load and the actuator are a part.
Patent CA-2084296-C (CA)
Title: Method of making an injection molding nozzle with a heating element extending outward between adjacent collar portions
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/27
Filed: 1992-12-04
Granted: 2002-10-29
Abstract: A method of making an injection molding nozzle having an electrical heating element wound in a channel.      The heating element has two terminal wires which extend radially outward parallel to each other from either a common end portion or two separate end portions of the heating element. After the heating element is wound in the spiral channel in the nozzle body, forward and rear collar portions are mounted around the nozzle body to form a radial slot or opening between them through which the end portion or portions of the heating element project. A stud portion is mounted to extend radially outward from the slot with a single bore or two parallel bores through which the end portion or portions extend. These components are then brazed together in a vacuum furnace to form a strong integral structure with the end portion or portions of the heating element secured in place. In one embodiment, a spacer portion having two parallel bores is mounted with ceramic paste to the stud portion. The two terminal wires extend out through the bores for connection in a threaded cap to a pair of external lead wires.
Patent CA-2087895-C (CA)
Title: Corrosion inhibitors
Inventor: ARMSTRONG PAUL
IPC: C09D161/20
Filed: 1993-01-22
Granted: 2003-10-21
Abstract: Coating composition comprising:      A) an organic film-forming binder; and B) a corrosion-inhibiting amount of a water-insoluble salt of i) a carboxylic acid having the formula (I):    in which a is 0 or an integer ranging from 1 to 5; m and n, independently, are 0 or an integer ranging from 1 to 10; X1 is O, S or -C(R5)(R6) provided that, if m and n are each 0, then X1 is not O or S; R1, R2, R3, R4, R5 and R6 are the same or different and each is hydrogen, C1-C15 alkyl, C2-C15 alkenyl, C3-C12 cycloalkyl, C2-C15 alkyl interrupted by one or more O-, N- or S-atoms, or each is C6-C10 aryl, C7-C12 aralkyl or C7-C12 aralkenyl each optionally substituted by one to five groups R, or any two of R1 and R2, R3 and R4 or R5 and R6 may form a C3-C12 cycloalkyl ring or a C6 aryl ring; and R is halogen, nitro, cyano, CF3, C1-C15 alkyl, C5-C12 cycloalkyl, C2-alkenyl, C1-C15 halogenoalkyl, C1-C12 alkoxy, C1-C12 thioalkyl, C6-C12 aryl, aryloxy, C7-C12 aralkoxy, C7-C12 alkaryl, CO2H, CO2-C1-C12 alkyl in which the alkyl group is optionally interrupted by one or more O-, N- or S-atoms, CO2-C7-C12 alkaryl, CO2-C6-C12-aryl in which the aryl group is optionally substituted with one or more carboxy groups, -C(=O)H, -C(=O)-C1-C12 alkyl in which the alkyl group is optionally interrupted by one or more O-, N- or S-atoms, -C(=O)-C7-C12 alkaryl, -C(=O)-C6-C12 aryl in which the aryl group is optionally substituted with one or more carboxy groups, NH2, NH-C1-C15 alkyl or N(C1-C15 alkyl)2 groups in which the alkyl groups are optionally interrupted by one or more O-, N- or S-atoms, or any two groups R may form a fused aliphatic or C6 aromatic ring; and ii) a base selected from a) a canon of Group Ib, IIa, IIb, IIIa, IIIb, IVa, IVb, Va, VIa, VIIa or VIIIa of the Periodic Table of Elements, b) an amine of formula II:    in which X, Y and Z are the same or different and each is hydrogen, C1-C24 alkyl optionally interrupted by one or more O- or N-atoms, C7-C9 phenylalkyl or C7-alkylphenyl, or two of X, Y and Z, together with the N-atom to which they are attached, forms a 5-, 6- or 7- membered heterocyclic residue which optionally contains one or more further O-, N- or S-atoms, and which is optionally substituted by one or more C1-C4 alkyl, amino, hydroxy, carboxy or C1-C4 carboxyalkyl groups, or two or X, Y and Z represent a double bond connected to a carbon atom and, together with the other one of X, Y and Z, form a heterocyclic ring which optionally contains one or more further O-, N- or S-atoms and may be fused to a phenyl ring, provided that X, Y and Z may not be simultaneously hydrogen; c) a guanidine of formula III:      R7~N~C(NH2)2 III in which R7 is hydrogen or C1-C15 alkyl; d) an amidine of formula IV:      R7~C(=NH)NH2 IV in which R7 has its previous significance; or e) melamine which is optionally substituted with one or more C1-C15 alkyl groups or phenyl groups.
Patent CA-2088860-C (CA)
Title: Translatable support bars for nesting semi-limp sheet workpieces
Inventor: FORNAY JEAN-FRANCOIS
IPC: B65H29/34
Filed: 1993-02-05
Granted: 1997-03-25
Abstract: The invention refers to a frame designed for the temporary supporting of a horizontal plate-like workpiece (20) that is then to undergo a vertical translation between the guiding and squaring stops (18, 19) located within a machine (10). The said frame comprises lateral retractable supports having on either of their sides a horizontal flat bar (40) extending over almost the whole length of the frame and whose shifting from an advanced position of the support for the sheet to a retracted position allowing the vertical dropping of the sheet is ensured by an actuator (46) acting on the flat bar either direct or possibly with the help of a single lever.
Patent CA-2091541-C (CA)
Title: Anionic compositions for sludge prevention and control during acid stimulation of hydrocarbon wells
Inventor: DYER RICHARD JOE
IPC: C09K8/74
Filed: 1993-03-11
Granted: 1999-09-07
Abstract: This invention relates to anionic compositions, containing an alkyl aryl sulfonic acid or salt thereof, a nonethoxylated glycol and an acetylenic alcohol in an alkyl alcohol solvent, that have proved effective for controlling sludge and emulsion formation during acid stimulation and treatment of hydrocarbon wells.
Patent CA-2096995-C (CA)
Inventor: CHAN MAUREEN GILLEN
IPC: H01B7/02
Filed: 1993-05-26
Granted: 1997-02-04
Abstract: An insulated conductor (20) for use in a communication cable which includes a filling material (30) includes a copper conductor (25) and a composite insulation system (27) comprising two concentric layers of insulation. An inner foam layer (28) of the insulation comprises a cellular plastic material (28) which includes a stabilizer system . An outer layer (29) of the insulation is referred to as a skin and comprises a stabilized solid plastic material. The stabilizer system in each of the cellular and solid layers includes a bifunctional portion that functions as an antioxidant and as a metal deactivator and that has a relatively high resistance to extraction. The level of the bifunctional portion of the stabilizer in the cellular material is substantially greater than that in the skin inasmuch as it has been found that the level of the stabilizer cellular layer contiguous to the copper wire determines the oxidation performance level of the composite insulation.
Patent CA-2097837-C (CA)
Title: Shampoo compositions with silicone and cationic surfactant conditioning agents
Inventor: WELLS ROBERT L
IPC: C11D1/86
Filed: 1991-11-29
Granted: 1998-09-15
Abstract: Disclosed are hair conditioning shampoo compositions comprising: (a) from about 5% to about 50% by weight of an anionic surfactant component: (b) from about 0.1% to about 10% by weight of a dispersed, insoluble, nonionic silicone hair conditioning agent, said silicone hair conditioning agent comprising a non-votatile. insoluble, nonionic silicone fluid component: (c) from about 0.2% to about 10%  by weight of a soluble cationic, amino or quaternary ammonium conditioning surfactant having a cationic nitrogen atom and at least one N-radical containing one or more hydrophilic moieties that are within 4 carbon atoms (inclusive) of a cationic nitrogen. said hydrophilic moieties being selected from the group consisting of alkoxy, polyoxyalkylene, alkylamido, hydroxyalkyl, and alkylester moieties, and combinations thereof: and (d) an aqueous carrier. The shampoo compositions hereof can provide excellent overall hair conditioning benefits, in conjunction with excellent cleaning performance, to a variety of hair types including treated hair such as permed and color-treated hair, as well as undamaged hair.
Patent CA-2100965-C (CA)
Inventor: CLARK RICHARD J
IPC: A61B17/00
Filed: 1991-07-12
Granted: 1999-09-14
Abstract: Système d'alimentation permettant de monter et de démonter un coupleur de lame chirurgicale à ultrason (14) et un support acoustique. Un manchon adaptateur (34) reçoit et enferme la lame tranchante (20) afin d'éviter les accidents. Dans un mode d'exécution comprenant deux éléments, un élément cylindrique (18) reçoit le manchon et un mécanisme d'encliquetage est prévu entre l'adaptateur (16) et l'élément (18) pour faciliter la rotation de l'adapteur (16) et du coupleur (14) lorsque l'élément (18) tourne, jusqu'à un couple de rotation prédéterminé, afin que la connexion filetée entre le coupleur (14) et le support acoustique (30) soit suffisante pour transmettre l'énergie ultrasonique. Dans un autre mode d'exécution ne comprenant qu'un seul élément, l'adaptateur (80) comprend un élément incorporé (82) monté pivotant pour tourner autour d'un axe parallèle à l'axe du manchon (84) afin de mettre en prise une ou l'autre des parties saillantes (94, 96) situées sur la bride (90) de l'adaptateur, afin de faire tourner ledit adaptateur (80) dans un sens ou dans l'autre. Dans un sens, l'élément (82)glisse au-delà de la partie saillante, lorsque le système déctecte une intensité de couple de rotation prédéterminée.
Patent CA-2101948-C (CA)
Inventor: ALMOG YAACOV
IPC: G03G9/135
Filed: 1992-01-21
Granted: 2004-03-30
Abstract: Liquid toner compositions for electrostatic imaging, which comprise colorant particles, a carrier liquid, at least one charge priming agent selected from alkoxides of aluminum and alkoxides of zirconium reacted with said particles and at least one charge director, wherein said charge priming agent is present in the colorant particles only near the surface thereof.
Patent CA-2103801-C (CA)
Title: Non-antibacterial tetracycline compositions possessing antiplaque properties
Inventor: MCNAMARA THOMAS F
IPC: A61P1/02
Filed: 1992-02-10
Granted: 2002-11-19
Abstract: A method of inhibiting plaque formation on mammalian tooth surfaces is disclosed. The method includes contacting the tooth surfaces with an effective amount of a non-antibacterial tetracycline.  In a preferred embodiment, such tetracyclines are in-cluded in various oral hygiene products such as dentifrices, lozenges, chewing gums and the like to contact the tooth surfaces and prevent plaque accumulation thereon.
Patent CA-2105566-C (CA)
Title: Heat stable film composition comprising polyepsiloncaprolactam
Inventor: ALTMAN CARL E
IPC: C08K5/00
Filed: 1992-03-04
Granted: 2003-09-30
Abstract: The present invention provides a heat stable film composition comprising polyepsiloncaprolactam and poly(epsiloncaprol-actam-hexamethylene adipamide) copolymer which finds particular use in applications wherein the film is subjected to heat for a prolonged period of time, such as in an oven or an autoclave.
Patent CA-2105639-C (CA)
Inventor: WADELL LARS GUSTAF ALBERT
IPC: B26D1/15
Filed: 1993-09-07
Granted: 1997-06-17
Abstract: A machine for cutting a frozen foodstuff into pieces of a predetermined size which comprises a) a conveyor, b) means for advancing the conveyor, c) a circular cutting device positioned above the conveyor whose blade is parallel to the direction of motion of the conveyor, d) a carrier for the foodstuff fixed to the conveyor having a groove aligned with the blade of the circular cutting device when in the cutting position enabling the foodstuff to be cut, and a cover positioned at one side of the carrier laterally of the groove, adapted to be moved from an open position upstream of the circular cutting device, to a closed position adjacent the circular cutting device and back to an open position downstream of the circular cutting device, the lower surface of the cover being  capable of holding the foodstuff in a fixed position during cutting, and e) a pusher adapted to push the foodstuff on the carrier when positioned upstream of the cutting device transversely to the direction of motion of the conveyor to a position where a predetermined amount of the foodstuff lies beyond the groove beneath the cover.
Patent CA-2108575-C (CA)
Title: Method of manufacturing solid dispersion
Inventor: NAKAMICHI KOUICHI
IPC: A61K9/14
Filed: 1992-04-14
Granted: 2002-10-22
Abstract: The object of this invention is to provide a process for producing a solid dispersion, which has overcome the disadvantages of the conventional production technology for solid dispersions, The invention comprises employing a twin-screw extruder in the production of a solid dispersion. In accordance with the invention, a solid dispersion can be expediently produced without heating a drug and a polymer to or beyond their melting points and without using an organic solvent for dissolving both components and the resulting solid dispersion has excellent performance characteristics.
Patent CA-2119380-C (CA)
Inventor: CHATRY MURIELLE
IPC: B01J13/00
Filed: 1992-09-18
Granted: 2001-05-01
Abstract: Solutions colloïdales concentrées dans un solvant non-aqueux de particules monocristallines non agrégées de diamètre hydrodynamique de 2 à 10 nm, d'oxydes de métaux M des groupes 1b à 7b, 8 et lanthanides, à l'état complexé par un ligand susceptible de complexer lesdits métaux sous forme d'alcoxydes notamment. Ces solutions sont obtenues par complexation par le ligand de l'alcoxyde de métal M en milieu solvant non aqueux, hydrolyse et polycondensation à l'aide d'un acide fort et chauffage. Utilisation de ces solutions à l'obtention de films d'oxydes.
Patent CA-2122762-C (CA)
Title: Method for making an absorbent product having integrally protected adhesive
Inventor: LAURITZEN NELS J
IPC: A61F13/15
Filed: 1994-05-03
Granted: 2007-03-06
Abstract: A method of making an absorbent product in which pressure sensitive adhesive is used to attach the product to a user's undergarment. The product does not require release paper to protect the adhesive from unintended contact prior to use. The product is made by forming depressions in a fluid impervious barrier so as to create raised areas in the barrier that protect the adhesive. The depressions may be formed in the garment facing surface of the barrier and the adhesive applied within the depressions so that the raised areas adjacent the depressions protect the adhesive. Alternatively, the depressions may be formed in the surface of the barrier opposite the garment facing surface so as to create raised areas in the garment facing surface and the adhesive applied adjacent the raised areas.
Patent CA-2123097-C (CA)
Title: Improvements relating to friction welding
Inventor: THOMAS WAYNE MORRIS
IPC: B29C65/06
Filed: 1992-11-27
Granted: 1998-09-01
Abstract: A method of joining workpieces (1A, 1B) defining a joint region (2) comprises causing a probe (3) of material harder than the workpiece material to enter the joint region (2) and opposed portions of the workpieces (1A, 1B) on either side of the joint region while causing relative cyclic movement between the probe and the workpieces. Frictional heat is generated to cause the opposed portions to take up the plasticised condition. The probe (3) is removed and the plasticised portions allowed to solidify and join the workpieces together.
Patent CA-2125686-C (CA)
Title: Method for measuring the thickness of a layer and apparatus for carrying out the method
Inventor: GREMINGER HANSUELI
IPC: B02C4/36
Filed: 1993-10-06
Granted: 2001-01-16
Abstract: A method for measuring the thickness of a layer of pasty or dough-like material on a moving surface (5) wherein a movably supported measuring roll is contacted with the layer and wherein during the movement of the surface provided with the layer the deflection of the measuring roll crosswise to the moving direction of the surface is detected with a sensor generating an output signal, whereat a parameter of this output signal is in a functional relationship with the magnitude of the deflection of the measuring roll, or of the thickness of the layer, respectively. To maintain the accuracy and to prevent the coiling up of the layer to be measured on the measuring roll, a defined braking force is exerted thereon.
Patent CA-2127008-C (CA)
Inventor: NELSON KIRK ALDON
IPC: F23N5/20
Filed: 1994-06-29
Granted: 1997-01-21
Abstract: A diesel heater includes a combustion chamber and a fuel pump for pumping diesel fuel to the combustion chamber. An air supply device supplies combustion air to the combustion chamber. An igniter ignites the diesel fuel to generate combustion heat. A heat exchange fluid supplying device supplies fluid in heat exchange relationship with the combustion heat. A thermal sensor in contact with the heat exchange fluid generates a temperature signal related to the temperature of the heat exchange fluid. A flame detector detects an ignited diesel fuel flame and generates a flame signal in response thereto. A microprocessor includes a memory and a plurality of input/output ports wherein the input/output ports are electrically connected to the thermal sensor, the fuel pump, the heat transfer fluid supplying device, the igniter, the combustion air supply device, and the flame detector. The memory stores a normal operating sequence, a start-up sequence, and a fail start period for the start-up sequence. An input device allows the current day and current time to be entered into the microprocessor memory. The microprocessor thereafter updates the current day and current time. A lower threshold temperature for the heat exchange fluid is entered into the microprocessor memory by the input device. A start day and start time are also entered into the microprocessor memory by the input device. The microprocessor automatically initiates the start-up sequence when the heat transfer fluid falls below the lower threshold temperature or when the current day and the current time equal the start day and the start time. The microprocessor executes the normal operating sequence when the flame signal is received.
Patent CA-2128006-C (CA)
Inventor: WENG LI
IPC: A61B17/00
Filed: 1993-01-26
Granted: 1998-08-25
Abstract: (Voir figure 1) Un cornet (12) qui peut être connecté à une source d'énergie (88) pour amplifier un déplacement produit par des ultrasons, est connecté à un émetteur (14) constitué de matériaux à facteur mécanique Q relativement élevé de transmission d'ultrasons à une fréquence f. L'émetteur en question a une configuration en cornet dont la longueur est un multiple de la demi-longueur d'onde ( /2). Dans la concrétisation privilégiée de prévention, cette configuration est constituée de plusieurs segments en cornet (16a et 16b) ayant chacun une longueur substantiellement égale à un multiple de  /2, où   = c/f (c étant la vitesse du son dans le matériau à facteur Q élevé). L'extrémité proximale de l'émetteur, qui est connectée au cornet, a un diamètre D1, alors que l'extrémité distale a un diamètre D2, où D1 > D2). Les ultrasons transmis par l'émetteur déplacent une pointe couplée à ce dernier par un connecteur souple (20).
Patent CA-2129875-C (CA)
Title: High efficiency furnace method and apparatus
Inventor: ELLINGHAM JEFFREY R
IPC: F24H3/06
Filed: 1994-08-10
Granted: 1996-09-24
Abstract: An upflow/downflow high efficiency furnace includes a means for mounting a secondary heat exchanger by use of a hinge member, which permits the furnace to be installed in either an upflow or downflow mode of operation, without any modification to the furnace as manufactured.
Patent CA-2133108-C (CA)
Title: Pasteurella haemolytica type a-1 bacterin-toxoid vaccine
Inventor: BROWN ALBERT L
IPC: A61P31/04
Filed: 1993-03-30
Granted: 2005-01-25
Abstract: This invention relates to the field of Pasteurella haemolytica vaccines. More particularly, the invention relates to a bacterin-toxoid vaccine capable of inducing immunity in bovine species in one dose against Pasteurella haemolytica Type A-1 infection comprising Pasteurella haemolytica derived leukotoxoid, capsular antigen, soluble antigens and cells, methods to make the vaccine and methods of vaccinating bovine animals.
Patent CA-2138681-C (CA)
Title: Polyvinylidene fluoride membrane
Inventor: DEGEN PETER JOHN
IPC: B01D69/12
Filed: 1994-12-21
Granted: 2001-08-14
Abstract: The present invention provides an isotropic, skinless, porous, polyvinylidene fluoride membrane having a K UF of at least about 15 psi (103 kPa), and preferably below about 50 psi (345 kPa), when tested using liquid pairs having an interfacial tension of about 4 dynes/cm (4 mN/m). The present inventive membrane preferably has a titer reduction of at least about 10 8 against T1 bacteriophage, more preferably also against PR772 coliphage, and even more preferably also against PP7 bacteriophage. The present inventive membrane can have a thickness of about 20 mil (500 µm) or less and even as low as about 5 mil (125 µm) or less. The present invention also provides a method of preparing such a membrane by providing a casting solution comprising polyvinylidene fluoride and a solvent therefor, heating the casting solution to a uniform temperature of about 57 °C to about 60 °C, spreading the casting solution onto a substrate to form a film, quenching the film in a quench bath so as to form a porous membrane, and washing and drying the porous membrane.
Patent CA-2140976-C (CA)
Title: Housing for an electrically powered appliance for personal use
Inventor: GOLOB JUERGEN
IPC: A47J43/07
Filed: 1995-01-24
Granted: 1998-09-22
Abstract: The invention is directed to a housing (12)  of a hand-held blender, fabricated from a a first plastic material having at least one outer surface  (16)  and one inner surface (18).  The housing (12) is further provided in at least one area (22, 24) with at least one second plastic material whose hardness is lower than the hardness of the first plastic material.   The second plastic material is molded onto the inner surface  (18) of the wall (10) by injection molding, such that said first area (24) projects from the inner surface  (18)  of the wall (10)  at least in individual sections,  forming bearing areas (24).  These bearing areas (24) serve as supports for drive,  control  and switching means (62,  88,  64). With this arrangement, a housing (12)  is provided that affords particular ease of manufacture while at the same time performing a damping function, improving the manipulation and reducing the noise level of a hand-held mixer when in operation.
Patent CA-2141378-C (CA)
Inventor: ROSE PAUL LAVERNE
IPC: C03C8/02
Filed: 1995-01-30
Granted: 2007-05-29
Abstract: This invention is directed to a glass frit composition essentially free from lead and cadmium exhibiting a linear coefficient of thermal expansion (25°C-300°C) between about 75-85 × 10-7 /°C, good flow at temperatures between about 950°- 1000°C, a softening point between about 650°-725°C, and excellent resistance to attack by alkaline detergent and hydrochloric acid, said frit consisting essentially, expressed in terms of weight percent on the oxide basis (except for the fluorine content), of SiO2 49-55 MgO 0-2 B2O3 13-20 CaO 1-7 Al2O3 4.5-7 SrO 0-8 Na2O 5-8.5 BaO 0-11 K2O 5-8.5 ZnO 0-2 Na2O+K2O 11-16 F 0. 25-3.