baber/WOPTO huggingface dataset:
Patent NO-164770-C (NO)
Inventor: ANDERSON JEFFREY JOHN
IPC: C07C51/15
Filed: 1986-05-13
Abstract: An integrated process for the production of formic acid from carbon dioxide and hydrogen is provided. The process comprises for example, a reactor in which the formate salt of a nitrogenous base is produced together with subsequent purification and formic acid recovery stages. In the process described formic acid is recovered from the formate salt by using a base interchange reaction in which there is generated a thermally decomposable formate salt of a high boiling base. The high boiling base can be for example an imidazole and the nitrogenous base can be triethylamine.
Patent NO-170900-C (NO)
Inventor: MCSHERRY THOMAS W
IPC: F16B2/08
Filed: 1986-06-18
Abstract: A one piece integrally molded plastics deck anchor comprises a base flange 454 with a channel 458 in it, an expansible toggle locking mechanism 456 attached to the base flange, and a tube 452 extending from the flange, to receive a fixing bolt or stud.
Patent NO-167857-C (NO)
Inventor: HATFIELD W ROBERT
IPC: C22B7/00
Filed: 1986-10-10
Abstract: Platinum lost from a catalyst gauze in a nitric acid plant is recovered using a recovery gauze placed immediately downstream of the catalyst gauze. The recovery gauze consists of palladium or an alloy comprising a major proportion of palladium, and the mesh size and wire diameter of the recovery gauze are chosen such that the predicted recovery gauze cycle length is from 0.9 to 1.1 times the catalyst gauze cycle length.
Patent NO-169165-C (NO)
Inventor: GRAPPE JACQUES
IPC: F17C3/00
Filed: 1987-06-25
Abstract: A storage device has an inner enclosure (6) and a leakproof and a rigid outer enclosure (5), which are mounted one inside the other and separated by an intermediate space (9) containing a fluid, continuous in phase at pressures other than that of the material stored, and pressure measurement equipment (16, 15) enabling the differences in the pressure of the fluid to be monitored. Advantageously, the device additionally features sampling equipment (18, 17) enabling the composition of the fluid to be monitored. The device may be buried, the outer enclosure being then placed against the cement walls (4) of a cavity, which may be a drilled well. The inner enclosure may feature a leakproof skin which is made rigid by the presence in the intermediate space of a porous and rigid filling material in which the fluid can circulate.
Patent CA-2005940-C (CA)
Title: Alkylaromatic lubricant fluids
Inventor: FORBUS THOMAS R
IPC: C10M107/12
Filed: 1989-12-19
Granted: 2001-05-15
Abstract: Aromatic compounds are alkylated with C20-C1300 olefinic oligomers by contacting the oligomers and aromatic compounds with an acidic catalyst to produce novel alkylated aromatic hydrocarbon compositions useful as lubricant basestock and additives. The olefinic oligomers used as alkylating agents are prepared from 1-alkene oligomerization in contact with a reduced chromium oxide catalyst on silica support. In one embodiment; the aromatic compounds are alkylated with a mono-olefinic HVI-PAO dimer which is prepared as a product or by-product from 1-alkene oligomerization using reduced chromium oxide on a solid support. The alkylated aromatic hydrocarbons retain the unique features of the alkylating olefinic oligomer and exhibit high viscosity index and low pour point. The novel alkylaromatic compositions show improved thermal stability; also, the compositions are useful as lubricant additives for improved antiwear properties, antioxidant and other properties.
Patent CA-2008585-C (CA)
Title: Apparatus for oxygenating medium
Inventor: OAKLEY ROBERT V
IPC: C12M1/04
Filed: 1990-01-25
Granted: 1999-03-23
Abstract: An   oxygenator,  particularly  for  proving  oxygen and/or  carbon  dioxide  or other gases to culture medium used  in  the  in vitro culture of animal cells, comprised of   a   collection  of  elongate  gas-permeable, liquid-impermeable  tubes  through  which  oxygen-containing  gas flows  and  permeates  through  the  tube walls to provide bubble-  and  foam-free  oxygen  gas  to medium in contact with  or  in  proximity to the tubes, the individual tubes having  an  outside diameter of less than about 1 mm and a wall  thickness of from about 0.1 mm to about 0.25 mm, the tube  collection preferably be radially spread apart at at least one point along its length.
Patent CA-2012391-C (CA)
Title: Liquid crystal display device
Inventor: MOCHIZUKI AKIHIRO
IPC: G09G3/36
Filed: 1990-03-16
Granted: 1994-02-22
Abstract: LIQUID CRYSTAL DISPLAY DEVICE                 ABSTRACT OF THE DISCLOSURE    A liquid crystal display device comprising a layer of a ferroelectric liquid crystal material sandwiched between opposed first and second electrodes.  The display device further comprises a dielectric layer as a capacitative element which is electrically connected through an electrically conductive connecting means to the first electrode so that the dielectric layer and the liquid crystal material are connected in parallel with regard to an external electric source.  The display device provides a large area and high information content display, high contrast ratio display, and high gradation display, together with a stabilized memory effect.
Patent CA-2021670-C (CA)
Inventor: WOLFF MARTIN J
IPC: B65D43/16
Filed: 1990-07-20
Granted: 1999-05-11
Abstract: A closure assembly for an open-top container including an adapter ring with a depending groove for engagement about the rim of the container. The adapter ring further includes a pair of integral hinge seats having opposed detents which receive and rotationally position a pair of pivot pins integral with an overlying cover.  Each pivot pin includes a detent-received shaft portion for rotational manipulation of cover, and a cam selectively engageable with a second detent in the open position of the cover for retention of the cover. The pin cam, in the corresponding detent recess, provides a second pivot axis for complete disengagement of the cover.
Patent CA-2021871-C (CA)
Title: Resonator
Inventor: GEORGAS DOUGLAS JEFFREY
IPC: F01N1/02
Filed: 1990-07-24
Granted: 2001-05-08
Abstract: In general, sound resonators or mufflers are bulky self-contained metal bodies, which are expensive to produce and to install in an engine intake or exhaust system. A relatively simple substitute, which can be tailor made to attenuate sound at various frequencies include two arcuate casing sections which are interconnected along one side edge by a hinge, so that the sections can be wrapped around an engine air intake tube, a latch on the other side edges of the sections for securing the sections together to form a sleeve around and coaxial with the tube, an inlet nozzle on the interior of each section for extending into the tube, and partitions extending between the inner and outer surfaces of each section for defining elongated, tortuous, sound attenuating passages.
Patent CA-2021955-C (CA)
Title: Method of producing finely divided particles or powder, vapour or fine droplets, and apparatus therefor
Inventor: YAMAGUCHI SUSUMU
IPC: C23C4/12
Filed: 1990-07-25
Granted: 1997-03-11
Abstract: A method of producing finely divided particles or powder, vapor or fine droplets comprises the steps of heating and melting the starting raw material in a vessel having opposed reflecting surfaces, and ejecting the melted raw material from the vessel as heated finely divided particles or powder, vapor or fine droplets, by introducing a carrier gas into the vessel.
Patent CA-2023611-C (CA)
Inventor: LEOPOLD RAYMOND JOSEPH
IPC: H04B7/005
Filed: 1990-08-20
Granted: 1998-11-17
Abstract: L'invention est un système de télémétrie, de poursuite et de commande (TPC) pour systèmes de communication cellulaires à satellites. Le système de l'invention utilise le canal de téléphonie ou le canal de transmission de données de l'abonné pour transmettre des données TPC à un satellite en vue d'une retransmission à d'autres satellites. Dans chacun des satellites, un récepteur de positionnement global fournit des signaux de commande de positionnement au sous-système de commande transporté par le satellite et transmet les éphémérides à une station terrienne par l'intermédiaire du canal de transmission de données de l'utilisateur. Le système de l'invention permet d'établir des communications TPC continues entre une station terrienne mobile et un satellite quelconque.
Patent CA-2030730-C (CA)
Title: Fluid-damped strut
Inventor: THORN RICHARD P
IPC: F16F13/08
Filed: 1990-11-23
Granted: 2000-10-03
Abstract: A fluid-filled strut particularly suited for automotive engine torque control applications. The strut includes a frame having a pair of fluid-filled chambers located adjacent opposite ends. Each chamber is defined by juxtaposed recesses in a pair of elastomeric blocks located on opposite sides of the frame. A discrete elongate fluid conduit connects opposite axial ends of each chamber. Attachment plates on opposite sides of the frame are bonded to the elastomeric blocks and are connected together by a connector bolt sleeve that extends across the frame through the fluid-filled chamber. The elastomeric blocks permit the frame to move in alternate axial directions relative to the sleeve, and in response to such motion, fluid in the chamber is displaced in alternate directions through the conduit to effect the desired motion damping. The elastomeric blocks are shaped to provide a desirable controlled snubbing action in both directions.
Patent CA-2038099-C (CA)
Inventor: SHIN CHUNG T
IPC: A61K/
Filed: 1991-03-12
Granted: 2002-01-15
Abstract: The invention provides stable, substantially anhydrous, transparent, gelled, antiperspirant sticks which are substantially free of lower monohydroxy alcohols, contain dibenzylmonsorbitol acetal as a gelling agent and are stabilized by the presence of a weakly basic, organic, nitrogen containing, stabilizing compound soluble in the composition employed to produce the stick.
Patent CA-2041726-C (CA)
Title: Electrochemical cell apparatus having an exterior fuel mixer nozzle
Inventor: REICHNER PHILIP
IPC: H01M8/06
Filed: 1991-05-02
Granted: 2003-07-08
Abstract: An electrochemical apparatus (10) is made having a generator section (22) containing electrochemical cells (16), a fresh gaseous feed fuel inlet (28), a gaseous feed oxidant inlet (30), and at least one hot gaseous spent fuel recirculation channel (46), where the spent fuel recirculation channel (46), a portion of which is in contact with the outside of a mixer chamber (52), passes from the generator chamber (22) to combine with the fresh feed fuel inlet (28) at the entrance to the mixer chamber, and a mixer nozzle (50) is located at the entrance to the mixer chamber, where the mixer chamber (52) connects with the reforming chamber (54), and where the mixer-diffuser chamber (52) and mixer nozzle (50) are exterior to and spaced apart from the combustion chamber (24), and the generator chamber (22), and the mixer nozzle (50) can operate below 400°C.
Patent CA-2042342-C (CA)
Title: Vacuum transfer apparatus for rotary sheet-fed printing presses
Inventor: SECOR HOWARD C
IPC: B41F21/06
Filed: 1991-05-10
Granted: 1999-07-20
Abstract: A vacuum transfer apparatus for use in a sheet fed rotary printing press for supporting the unprinted side of a freshly printed sheet as it is moved from the press impression cylinder along a transfer path to a further processing station of the press, the apparatus including a vacuum chamber supporting a plurality of rotatable elongated rollers arrayed in spaced-side-by-side parallel relationship laterally across the transfer path, and means for producing a pressure differential across the freshly printed sheet to draw the unprinted side of the sheet into engagement with the support rollers by drawing air into the vacuum chamber through the spaces between the rollers as the sheet is pulled along the transfer path so that the printed side of the sheet can not be marked or marred.
Patent CA-2043006-C (CA)
Title: Shredder/compactor assembly for recycling waste material
Inventor: KNOWLER JAMES TANSLEY
IPC: B02C18/22
Filed: 1991-05-22
Granted: 1996-03-19
Abstract: A fabric bag is used to be packed with shredded waste material from a shredder/compactor.  During loading, the bag is confined in a close-fitting steel box and is supported on a fork lift-type pallet.  Use of the box as a confining rigid jacket enables  the  shredder/compactor to  compress  and  compact  the shredded feed.  The front wall of the box can then be removed and a fork lift-type jack used to extract the packed bag and pallet as a unit, ready for shipping.
Patent CA-2043978-C (CA)
Title: Polarization diffraction element and polarization detector employing the same
Inventor: YOSHIDA YOSHIO
IPC: G11B7/135
Filed: 1991-06-06
Granted: 1999-08-10
Abstract: A polarization diffraction element comprising two diffraction gratings formed on both faces of a substrate respectively. Both the diffraction gratings have grating lines which are arranged at the same grating pitch, and whose directions mutually form a predetermined minute angle. The grating lines may also be arranged parallel to each other. In this case, the relationship between grating pitches D1, D2 of the respective diffraction gratings and the wavelength .lambda. of an incident light is expressed as:   0 < ¦ .lambda.(1/D1 - 1/D2)(1 - (.lambda./2D1)2) - (1/2) ¦ ~ 0.35; or 0 < ¦ .lambda.(1/D1 - 1/D2)(1 - (.lambda./D1 - .lambda./2D2)2) - (1/2) ¦ ~  0.35 In a polarization detector employing this polarization diffraction element, a single converging lens of a small effective diameter separates one polarization from another polarization and converges them separately on different photodetectors. Consequently, a still more compact and lightweight optical pickup can be manufactured.
Patent CA-2045371-C (CA)
Inventor: ALLAM RODNEY J
IPC: F02C3/22
Filed: 1991-06-25
Granted: 1994-05-03
Abstract: ABSTRACT      An integrated cryogenic air separation unit power cycle system is disclosed wherein the air separation unit (ASU) is operated at elevated pressure to produce moderate pressure nitrogen.  The integrated cycle combines a gasification section wherein a carbon source, e.g., coal is converted to fuel and combusted in a combustion zone.  The combustion gases are supplemented with nitrogen from the air separation unit and expanded in a turbine.  Air to the cryogenic air separation unit is supplied via a compressor independent of the compressor used to supply air to the combustion zone used for combusting the fuel gas generated in the gasifier system.
Patent CA-2052466-C (CA)
Inventor: SAKAMOTO MASAYUKI
IPC: H04W16/32
Filed: 1991-09-30
Granted: 2001-05-08
Abstract: A method of handover and route diversity in a mobile radio communication which is less time consuming and capable of improving the frequency spectrum utilization efficiency and securing the high quality of service regardless of the moving speed of the mobile station. In the method, a loop transmission line by which each base station is connected with neighboring base stations is provided; a handover information is transmitted through the loop transmission line, where the handover information is relayed by each base station. from one of the neighboring base stations to another one of the neighboring base station; and the handover of a communication of a mobile station from one traffic channel of one base station to an idle traffic channel of another base station is carried out by using the handover information transmitted through the loop transmission line. The method can also be applied to a route diversity reception.
Patent CA-2057263-C (CA)
Title: Process for producing gypsum building materials
Inventor: KOSLOWSKI THOMAS
IPC: C04B38/10
Filed: 1991-12-09
Granted: 1996-12-31
Abstract: The invention relates to a process for producing light-weight, panel- or block-shaped gypsum building materials provided with a pore structure, in particular wall panels, calcium sulphate alpha-hemihydrate, water in a slightly more than stoichiometric quantity and, if appropriate, setting retarders and/or accelerators for gypsum and additives being mixed to form a pourable suspension and being subjected to suitable forming, wherein ground calcium sulphate alpha-hemihydrate having a Blaine specific surface area greater than 2000 cm2/g, if appropriate together with calcium sulphate beta-hemi-hydrate in a quantity of up to about 30% by weight, relative to the calcium sulphate alpha-hemihydrate, and a previously prepared surfactant foam of a defined apparent density in the range from 40 to 80 kg/m3 and a uniform defined pore size, which foam is mixed into the suspension before forming in a quantity for adjusting the apparent density of the gypsum building material to a defined value in the range from 300 to 1200 kg/m3, are used.
Patent CA-2071462-C (CA)
Title: Method and apparatus for setting respective positions of ink keys
Inventor: RANCOURT MICHAEL R
IPC: B41F31/04
Filed: 1992-06-17
Granted: 1997-07-22
Abstract: Adjustable ink keys are adjusted to move associated portions of a doctor blade relative to associated portions of an ink roll of a printing unit.  Each portion of the doctor blade is moved into contact with the associated portion of the ink roll.  Each portion of the doctor blade is then moved a predetermined amount away from the associated portion of the ink roll after the portion of the doctor blade has moved into contact with the portion of the ink roll.  A measured value associated with the position of the associated ink key is stored in memory.  The stored measured value is indicative of the position of the associated ink key after the portion of the doctor blade has moved the predetermined amount away from the portion of the ink roll.  The stored measured value corresponds to the lithographic zero position of the ink key.  The stored measured value of the ink key is modified each time the portion of the doctor blade moves into contact with the ink roll and then moves the predetermined amount away from the ink roll.
Patent CA-2083358-C (CA)
Title: Plug for use with self regulating cable
Inventor: HART ROBERT E
IPC: H01R9/03
Filed: 1992-11-19
Granted: 1994-08-02
Abstract: A plug for use with self-regulating cables or the like is disclosed. The plug enables simple and safe installation of a self-regulating cable or the like into the plug. It also enables an operator to connect the conductors of the plug to the cable conductors with the use of a single screwdriver and without the necessity of stripping or cutting tools. The plug ensures that all conductors are properly connected in addition to providing fuse-link protection to the circuit.
Patent CA-2083743-C (CA)
Title: Friction clutch
Inventor: MAUCHER PAUL
IPC: F16D13/58
Filed: 1992-11-25
Granted: 2006-10-10
Abstract: A friction clutch for use in motor vehicles wherein the pressure plate is automatically shifted toward the counterpressure plate for the friction linings of the clutch disc in dependency on the extent of wear upon the counterpressure plate, pressure plate and particularly the friction linings. The pressure plate is non-rotatably but axially movably coupled to the housing of the friction clutch and is biased toward the friction linings by resilient means including a diaphragm spring or a set of coil springs. The adjusting unit which changes the position of the pressure plate as a function of the extent of wear mainly upon the friction linings can employ cooperating wedges including a set of wedges on the housing and a set of wedges on the resilient means.
Patent CA-2084075-C (CA)
Title: The ciliary neurotrophic factor receptor
Inventor: DAVIS SAMUEL
IPC: C12Q1/68
Filed: 1991-06-03
Granted: 2005-08-16
Abstract: The present invention relates to the ciliary neurotrophic factor (CNTF) receptor, and provides for CNTF receptor nucleic acid and amino acid sequences. It also relates to (i) assay systems for detecting CNTF activity; (ii) experimental model systems for studying the physiologic role of CNTF; (iii) diagnostic techniques for identifying CNTF-related neurologic conditions; (iv) therapeutic techniques for the treatment of CNTF-related neurologic and muscular conditions, and (v) methods for identifying molecules homologuous to CNTF and CNTFR.
Patent CA-2090424-C (CA)
Title: Roller press
Inventor: ANDERSEN KNUD TONI
IPC: B02C4/42
Filed: 1992-01-23
Granted: 2003-06-10
Abstract: (57) Abstract A roller press comprising two rollers (1, 2) which rotate in opposite rotational directions, the rollers being driven via two gear units (5, 6) mounted on the roller shafts (3, 4), and having means for counterbalancing the oppositely-directed torques aris-ing in the gear units in the form of a torque reaction system (7-12), eliminating the need for a torque absorption mechanism att-ached to the machine frame of the roller press.
Patent CA-2090568-C (CA)
Title: Cord reel mechanism
Inventor: URUSHIBATA KENICHI
IPC: H02G11/00
Filed: 1993-02-26
Granted: 1997-10-14
Abstract: A cord reel mechanism which includes a housing having inner and outer cylinders.  A tape-like cord is vortically wound about the inner cylinder inside the housing.  The inner and outer cylinder rotate relatively so as to tighten and loosen the cord.          Reinforcing tape segments are attached to the tape-like cord at spaced locations to support the cord and prevent buckling.  The reinforcing tape segments each have a tapered portion and an attachment portion.
Patent CA-2093600-C (CA)
Title: Borehole stressed packer inflation system
Inventor: BROOKS ROBERT T
IPC: E21B47/00
Filed: 1993-04-07
Granted: 2003-11-04
Abstract: A method for determining a proper inflation pressure for an elongated inflatable packer to effect a positive contact stress seal of an elastomer packer element with a borehole wall in a wellbore traversing earth formations. The temperature differential for each layer in a radial plane is determined. The final contact stress, the finite inflation pressure required to inflate the packer element and the temperature differential are functionally interrelated to one another to obtain a final contact stress of the packer element with a borehole wall.
Patent CA-2094065-C (CA)
Inventor: DALUPAN ROMULO V
IPC: F01M13/02
Filed: 1993-04-15
Granted: 2001-02-20
Abstract: An apparatus for the treatment of gases in a positive crankcase ventilation (PCV) system, in an internal combustion engine, is provided with a housing defining a gas treatment chamber. Gas filtering media is passed through the chamber and the gases from the engine crankcase are passed throughout the gas filtering media in the chamber, before the gases are routed into the air intake portion of the engine.
Patent CA-2097739-C (CA)
Inventor: MCDONALD SANDY
IPC: B25B27/10
Filed: 1993-06-04
Granted: 1998-09-01
Abstract: There is provided a new and improved apparatus for use in attaching a coupling to a tube assembly in which the tube assembly comprises an outer tube made of a first material and at least one inner tube co-axial with and parallel to the outer tube. The inner tube is made of a second material. The coupling comprises at least one tubular extension to receive within it in a close fit a portion of the inner tube and an outside and to engage in close fit over a portion of the outer tube. The apparatus comprises a stationary die which comprises a tube-receiving channel for receiving a part of the outer tube and at least one lower retardant member within the die made of a third material. There is also provided a transversely movable die having a tube-receiving channel for engaging an opposite part of the outer tube and at least one upper retardant member within the moveable die made of a fourth material. An axially movable die having a recess to house said coupling is also provided. There are further provided means to move the transversely movable die toward the stationary die whereby the lower and upper retardant members are brought into interference contact with the outer tube and means to move the axially movable die toward an end of the stationary and the transversely moveable dies and wherein the co-efficient of friction between the first material and the third material or the fourth material is greater than the co-efficient of friction between the first material and the second material.