baber/WOPTO huggingface dataset:
Patent CA-2023004-C (CA)
Title: Removal of trialkyl arsines from fluids
Inventor: NOWACK GERHARD P
IPC: B01J20/06
Filed: 1990-08-09
Granted: 1999-03-30
Abstract: Trialkyl arsines are removed from fluids, in particular gases, by contacting with a solid sorbent material containing at least one manganese oxide (preferably MnO2) and at least one Group IB metal oxide (preferably CuO).   In a preferred feature, the used solid sorbent material is regenerated by oxidizing treatment, washing with an aqueous liquid, and drying.
Patent CA-2026528-C (CA)
Title: Foldable table having centerline folding leaves
Inventor: STEVENS KENNETH V
IPC: A47B3/00
Filed: 1990-09-28
Granted: 2000-04-25
Abstract: A foldable table assembly has a base frame formed by transverse lower base pieces, longitudinally opposing pairs of spaced-apart upright pieces having pivot mounts on their upper ends, longitudinal stretchers extending between the upright pieces, and end sections between the upright pieces defining a centerline of the assembly and having leaf stops on their upper ends, for independently holding respective table leaves mounted by pivot pins to the pivot mounts on each transverse side of the centerline. The table leaves have a total span greater than the width of the upright pieces, and fold vertically for storage within the width of the upright pieces.      A longitudinal upper shelf is provided on one transverse side supported by upright posts at the centerline above the corresponding table leaf, and is foldable to a vertical storage position. Round banquet table leaves can be interchangeably mounted in place of rectangular buffet table leaves by removing the pivot pins from the pivot mounts.
Patent CA-2031138-C (CA)
Title: Method and apparatus for modulating a radiant infrared burner
Inventor: CLARK DANIEL R
IPC: F23D14/16
Filed: 1990-11-29
Granted: 1995-10-17
Abstract: A method and apparatus for modulating the surface area of a radiant infrared burner over which combustion occurs as a function of burner heat output rate.  This modulation serves to maintain the heat flux density on the surface of the burner at or near an optimum value over a range of heat output rates.  The modulation is effected by means of a piston disposed in the internal cavity of a burner which blocks the passage of combustible gas to areas of the burner downstream of the piston from the gas inlet to the burner.  The piston is displaced further downstream with increased gas flow rate resulting in combustion occurring over an increased area of the burner surface as burner heat output rate is increased.  In its simplest embodiment, the invention comprises a burner oriented vertically with the combustible gas entering the bottom of the burner and a free piston which floats on the incoming gas stream at a level within the burner which is proportional to the gas flow rate.
Patent CA-2035900-C (CA)
Title: Protein having urate oxidase activity, recombinant gene coding for this protein, expression vector, microorganisms and transformed cells
Inventor: CAPUT DANIEL
IPC: C12N15/85
Filed: 1990-07-13
Granted: 2000-01-11
Abstract: The invention concerns a new urate oxidase activity protein which has the sequence (I), possibly preceeded by a methionine, or in that it may present a degree of substantial homology with this sequence. The invention is also aimed at medicines containing this protein, as well as the genetic engineering implements to obtain it.
Patent CA-2037320-C (CA)
Title: Binary concentration and recovery process
Inventor: HUCKINS JAMES N
IPC: C02F1/44
Filed: 1991-02-28
Granted: 1996-12-17
Abstract: A binary process for the concentration and recov-ery of contaminants from an aqueous environment by sub-merging lipids (11) inside of a thin non-porous polymeric film enclosure (10) in an aqueous environment (13) to concentrate the contaminants in the lipids (11) and polymeric film (10); and, recovering contaminants or impurities from the first part or from other contaminated lipids or biogenic extracts by submerging the polymeric film enclosed materials (10) in a solvent medium (16).
Patent CA-2040804-C (CA)
Title: Engine component organizer
Inventor: BRACONNIER ED
IPC: B62B3/00
Filed: 1991-04-19
Granted: 1995-06-27
Abstract: An engine component organizer which includes a wheeled cart having a plurality of trays for supporting relatively bulky and heavy engine parts.  An extension is attached to the tray having a plurality of receptacles and protrusions for storing relatively small parts of an engine in a way that associates parts with a corresponding location in the engine.  Holders are affixed to sides of the cart for supporting elongated relatively heavy parts of an engine.
Patent CA-2045463-C (CA)
Title: Apparatus and method for producing coated fastener samples
Inventor: DIMAIO ANTHONY
IPC: B05B13/06
Filed: 1990-10-16
Granted: 2000-09-26
Abstract: An apparatus for coating samples or small quantities of internally and externally threaded fasteners includes a powder feed, an induction heater, and dust collection system. A reciprocating, magnetized holder engages a friction drive to rotate a stud in front of a spray nozzle. In another embodiment, a nut sample machine includes a reciprocating powder spray nozzle mounted on an air cylinder and a water cooled support block for the nut.      In a third embodiment a hydraulically controlled gate is sequenced with the reciprocating powder feed, providing a continuous coating operation. Methods for applying coating to the samples include steps that employ these embodiments.
Patent CA-2045603-C (CA)
Title: Process and device for sequential microbial enrichment in a single apparatus
Inventor: WARD ROBERT N JR
IPC: C12M1/24
Filed: 1990-01-26
Granted: 1996-01-23
Abstract: There is disclosed an apparatus, a device, and a method using the inventive device and apparatus for the sequential en-richment of a particular microorganism to a threshold level to al-low for its detection. The use of the apparatus for sequential microbial enrichment shortens the time period normally spent to enrich samples to permit the growth of enough microorganisms to deter the particular microorganisms(s) of interest. The inven-tion eliminates the need for multiple manual transfers of poten-tially biohazardous materials.
Patent CA-2046002-C (CA)
Inventor: ZAHLER ROBERT
IPC: C07D473/16
Filed: 1991-06-28
Granted: 2001-06-12
Abstract: Antiviral activity is exhibited by compounds having the formula and its pharmaceutically acceptable salts.
Patent CA-2046992-C (CA)
Title: Water-thickening copolymers and the use thereof
Inventor: KONRAD GERD
IPC: C09D11/03
Filed: 1991-07-12
Granted: 2002-09-17
Abstract: Water-thickening copolymers are obtainable by copolymerization of (A) one or more monomers of the formula I      R1HC=CR2R3  I where R1 and R2 can be identical or different and each is H or C1-C5-alkyl, and R3 is   -COOM, -PO3M2, -SO3M where R1 and R2 can be identical or different and each is H or C1-C5-alkyl, R4 is H or C1-C5-alkyl, R5 is C1-C4-alkylene, R6 and R7 can ba identical or different and each is H or C1-C3-alkyl, and M is hydrogen or an alkali metal, 1/2 alkal-ine earth metal or ammonium ion, and (B) one or more monomers of the formula IIa or IIb XR1C=CR2.gamma. IIa   where R1 and R2 can be identical or different and each is H or C1-C5-alkyl, R4 is H or C1-C5-alkyl, X     is -COOM where M is hydrogen ar alkali metal, 1/2 alkaline earth metal or ammonium ion, Y      is   where 8a is C6-C30-alkyl, alkylaryl or aryl and R9 is H, C1-C30-alkyl, alkylaryl or aryl, and A and B are different and each has the meaning of X or Y.
Patent CA-2056310-C (CA)
Title: Method of manufacturing a rotary anode type x-ray tube and apparatus for manufacturing the same
Inventor: SHIDA MINORU
IPC: F16C33/10
Filed: 1991-11-27
Granted: 1997-10-21
Abstract: A method of manufacturing an X-ray tube comprises the steps of applying the bearing portions with liquid metal lubricant and heating the bearing portions defined by a rotary structure and a stationary shaft to a temperature of 200°C or more in a vacuum condition. An apparatus for manufacturing an X-ray tube comprises a vacuum bell jar having a heating unit, a metal lubricant injector provided in the vacuum bell jar and a holding and controlling device for holding the rotary structure and the stationary shaft and controlling the movement and the mutual connection of the rotary structure and stationary shaft externally of the vacuum envelope.
Patent CA-2072118-C (CA)
Title: Dual flow turbine engine muffler
Inventor: ROSS DAVID F
IPC: F01N1/02
Filed: 1990-11-15
Granted: 2001-03-27
Abstract: An elongate exhaust gas muffler (10) for a turbine engine includes a foraminous central exhaust duct (12) which is circumscribed along its length by a plurality of tuned dissipative and reactive noise attenuation chambers (42-48). At an inlet end (16) of the muffler (10) an annular secondary flow inlet (32) is defined about the central exhaust duct and opens to the first sound attenuation chamber (42). A secondary flow of pressurized bleed air is receivable into the first attenuation chamber (42) in the muffler (10).
Patent CA-2075518-C (CA)
Title: Optical memory
Inventor: INUI TETSUYA
IPC: G11B7/2405
Filed: 1992-08-07
Granted: 1997-04-15
Abstract: A transparent substrate of an optical memory is produced by injection molding using a stamper. Grooves and lands are alternately arranged on the optical memory, to facilitate the tracking of light converged on the optical memory. The groove width is set in the range of 0.3 µm to 0.4 µm and the groove depth is set in the range of 80 nm to 100 nm. A decrease in the width of a land is restrained to a maximum of 0.2 µm at each edge. With such dimensions, even when the track pitch is set to about 1.4 µm, it is possible to obtain a track crossing signal with sufficient intensity for performing an access operation to a target track. Moreover, since the dimensions bring about an improved reflectance at a land, the optical memory achieves an improved C/N ratio and recording density.
Patent CA-2079695-C (CA)
Inventor: SCHOETTKER REINHARD
IPC: F16B2/20
Filed: 1992-10-02
Granted: 1999-03-02
Abstract: A device for sealing the lend of a heat-shrunk sleeve surrounding a branching connection of electrical or optical cables grips the outer surface of the sleeve between the branching cables and keeps the opposing surfaces of the sleeve in contact with each other between the cables, during cooling after the heat-shrinking of the sleeve.  The device has two parallel arms which are interlocked with each other at one end.  The distance between the arms can be changed in such a way, that the arms remain essentially parallel at any distance from each other.  The device is preferably installed after heat-shrinking.
Patent CA-2090450-C (CA)
Title: Photo-hardened liquid coating composition for glass surfaces
Inventor: HINTZE-BRUENING HORST
IPC: C08F290/00
Filed: 1991-08-08
Granted: 1996-07-02
Abstract: The  present  invention  relates  to  radiation-curable oligomers which can be prepared from a) one  hydroxy-  and/or  aminofunctional  compound having a functionality between 3 and 4 and a number-average molecular weight between 500 and 4000, b) one compound having 2 hydroxy and/or amino groups and a number-average molecular weight between 200 and 4000, c) one monoethylenically unsaturated compound having a group containing one active hydrogen atom and having a number-average molecular weight between 116 and 1000, and d) one aliphatic and/or cycloaliphatic diisocyanate, which comprises using components a to d in amounts such that 1. the molar ratio of component a to component b is between 0.1 and 1.1, 2. the molar ratio of component c to component a is between 2.0 and 10, and 3. the equivalent ratio of the isocyanate groups of component d to the hydroxyl and/or amino groups of the sum of components a to c is between 0.9 and 1Ø
Patent CA-2092519-C (CA)
Title: Synthetic polypeptides as inhibitors of hiv-1
Inventor: JIANG SHIBO
IPC: C12P21/02
Filed: 1993-03-25
Granted: 2003-03-18
Abstract: Synthetic HIV-1-based polypeptides as well as methods for treating HIV-1 infections are provided herein. The polypeptides of the present invention have amino acid sequences substantially corresponding to a specified region of the HIV-1IIIB virus. The polypeptides of the present invention may be administered in effective amounts for preventing and treating HIV-1 infections.      The polypeptides are useful for inhibiting the replication of the HIV-1 virus as well as HIV-1-mediated cytopathogenesis and cell fusion at levels which are within acceptable ranges of cytotoxicity.
Patent CA-2097693-C (CA)
Inventor: MUELLER BRUCE DALE
IPC: H04L27/22
Filed: 1992-08-14
Granted: 1999-12-21
Abstract: A system and method for calculating survivor metrics in a Viterbi equalizer (424) of a receiver (56), such as a receiver operative to receive a PSK-modulated signal, for example, a .pi./4, differential, phaseshift-keying, modulated signal. The state transition metric, defined as a function of two successive states, is converted into a function defined by pairwise differences between allowable symbols of the PSK-modulated signal. When operative to receive .pi./4 DQPSK-modulated signal, the number of calculations required to calculate state transition metrics is reduced significantly.
Patent CA-2098816-C (CA)
Inventor: NADAUD JEAN-FRANCOIS
IPC: A61K8/368
Filed: 1991-12-19
Granted: 2003-06-10
Abstract: Un gel transparent ou translucide à base de polymère de type acide polyacrylique réticulé est rigidifié par au moins un ga- lactomannane (gomme de caroube, de guar ou de tara), en faible quantité. Le gel présente alors une consistance suffisamment ri- gide pour garantir la bonne stabilité en son sein d'inclusions constituées d'une émulsion eau-dans-huile ou huile-dans-eau, d'un gel, ou d'une dispersion aqueuse de vésicules lipidiques. La présence dans l e milieu de sels, sinon incompatibles avec le polymère, ne perturbe pas l'état rhéologique du gel.
Patent CA-2099253-C (CA)
Inventor: BODET PAUL WALTER
IPC: G08B5/22
Filed: 1991-12-12
Granted: 1997-06-03
Abstract: A user of a selective call receiver (100) is capable of inputting and storing user defined search key informa-tion and user defined corre-sponding information into non-volatile memory (107), via user input control (109). Subsequent to receiving and decoding a message having a message information and storing the message informa-tion into memory (106), the selective call receiver (100) is capable of searching the message information for an occurrence of the user de-fined search key informa-tion, and presenting the mes-sage information and at least a portion of corresponding information for an occur-rence of corresponding user defined search key informa-tion in the message informa-tion.
Patent CA-2100902-C (CA)
Inventor: OGAWA KENJI
IPC: G01P3/36
Filed: 1993-07-20
Granted: 1996-02-13
Abstract: In a digital ramp phase type gyro in which a ramp signal RAM is produced by repeatedly accumulating step values sequentially generated corresponding to an input angular rate until the accumulated value exceeds a threshold value THR or -THR and the ramp signal RAM is used to modulate the phases of clockwise and counterclockwise light beams to cancel the phase difference therebetween, a comparing part 38 compares the threshold values THR and -THR and the ramp signal RAM and, when the ramp signal RAM exceeds either one of the threshold values THR and -THR, outputs the threshold value THR or -THR and a subtractor 41 subtracts the output threshold value from the accumulated value at that time, thereby causing a flyback of the ramp signal RAM. The output from a synchronous detector 23 at this time is latched as an error signal in a latch circuit 31 and the error signal is integrated by an integrating filter 32 to generate a correcting signal.  The correcting signal is added to a reference value Er in a circuit 37 to produce corrected threshold values THR and -THR and the phase difference between the clockwise and counterclockwise light beams immediately prior to the flyback is always held to be 2n.pi. rad.
Patent CA-2104514-C (CA)
Inventor: TATSUTANI TOSHIO
IPC: A47K10/48
Filed: 1993-08-20
Granted: 1998-08-25
Abstract: A hand dryer in which a channel-like hand insertion unit opening at the front face and side faces is formed in the front face of a case which functions as an outer shell. Upper and lower blowout nozzles are disposed in the upper and lower faces of the hand insertion unit. A high-pressure air flow generation device supplies high-pressure air flow to the blowout nozzles. A high-speed wind generated in the hand insertion unit blows water on hands to the inner portion of the hand insertion unit. The blown water is drained to the outside of the hand insertion unit, through drainage holes which are disposed at lateral ends of the bottom face of the hand insertion unit. Thereby, the blown water from the hands can be smoothly drained without remaining in the hand insertion unit.
Patent CA-2105314-C (CA)
Title: Sulfurized overbased compositions
Inventor: CAHOON JOHN M
IPC: F02B75/02
Filed: 1993-09-01
Granted: 2003-05-06
Abstract: This invention relates to a composition comprising at least one sulfurized overbased product made by contacting (A) at least one overbased product or (A') at least one boron-containing overbased product with (B) sulfur and/or at least one source of sulfur; said overbased product (A) or boron-containing overbased product (A') being made using at least one acidic material, with the proviso that when said acidic material is other than SO2 or a source of SO2 said overbased product (A) or boron-containing overbased product (A') is contacted with an effective amount of SO2 or a source of SO2 to displace at least part of said acidic material. In one embodiment the sulfurized overbased product is an overbased thiosulfate or a boron-containing overbased thiosulfate. In one embodiment, the sulfurized overbased product is made using the overbased product (A) and the composition further comprises at least one non-sulfurized boron-containing overbased product. The sulfurized overbased products are thermally stable and are useful as extreme pressure (EP) and/or anti-wear agents or antioxidants for use in lubricants, functional fluids and normally liquid fuels. The functional fluids can be oil-based, water-oil emulsions or water-based. The sulfurized overbased products are particularly suitable for use as EP and/or anti-wear agents for use in gear lubricants and cutting fluids.  In one embodiment lubricating compositions are provided that pass both the L-37 High Torque Test and the L-42 High Speed Shock Test without the necessity of employing phosphorus and sulfurized olefin anti-wear systems in their formulation.
Patent CA-2106975-C (CA)
Title: Process for conditioning of water-soluble substances
Inventor: TROFAST JAN
IPC: A61K/
Filed: 1992-03-24
Granted: 2002-03-19
Abstract: A process for providing water-soluble micronized substances, which can be produced, stored and used while maintaining the aerodynamic properties required for inhalation of such substances, which process is carried out by: a) reducing, if necessary, the residual water from the micronized substance by drying optionally at an elevated temperature and/or vacuum; b) condition-ing said dried, micronized substances with a solvent; and c) eliminating residual solvent by storing in a dry place like vacuum or by purging with an inert gas.
Patent CA-2112515-C (CA)
Inventor: LANNES ERIC M
IPC: F24H9/00
Filed: 1993-12-22
Granted: 1998-09-15
Abstract: A water heater cold water inlet deflector means which creates turbulent flow within the inlet conduit and creates turbulent water circulation throughout the water storage tank so that sediment is disturbed and suspended, stacking is prevented and efficiency is improved.
Patent CA-2122050-C (CA)
Title: Chemically degradable polyolefin films
Inventor: GARCIA RODRIGO A
IPC: B29K23/00
Filed: 1993-08-19
Granted: 2009-05-19
Abstract: The present invention is directed to melt blown polyolefin film which is produced cheaply by melt blowing polyolefin resins which contain 1 to 45 wt% fillers selected from the fillers including an inorganic carbonate, synthetic carbonates, nepheline syenite, talc, magnesium hydroxide, aluminum trihydrate, diatomaceous earth, mica, natural or synthetic silicas and calcined clays or mixtures thereof, having a particle size less than 150 mesh. A further aspect of the present invention is directed to polyolefin resins, especially polyethylene, which are chemically degradable by the incorporation of the combination of the above group of fillers and a metal carboxylate. The metal carboxylates of the present invention are inclusive of a large number of metals, such as cerium, cobalt, iron, magnesium and manganese.
Patent CA-2128911-C (CA)
Inventor: LEWIS THOMAS E
IPC: B41C1/05
Filed: 1994-07-27
Granted: 1998-09-22
Abstract: Lithographic printing plates suitable for imaging by means of laser devices.  Laser output ablates one or more plate layers, resulting in an imagewise pattern of features on the plate.  The image features exhibit an affinity for ink or an ink-abhesive fluid that differs from that of unexposed areas. The plates also include a secondary ablation layer that ablates only partially, and in a controlled fashion, as a result of destruction of overlying layers.
Patent CA-2143405-C (CA)
Inventor: FREESE DONALD T
IPC: C23F11/173
Filed: 1995-02-24
Granted: 2005-12-13
Abstract: A method for simultaneously controlling the deposition of scale and the formation of corrosion in a cooling water system comprising adding to the system a water soluble copolymer having the structure:     (see formula I) wherein R1 is H or lower (C1-C4) alkyl, R2 is (CH2-CH2-O)n, (see formula II) or mixture of both, n is an integer of from 1 to about 40, R3 is H, lower (C1-C4) alkyl or an acetate, R4 is H or COOM, R5 is H or (C1-C4) alkyl and M is H or a water soluble cation, c is the molar percentage being between 0-95 molar %, d is the molar percentage being between 100-5 molar %, c and d should add up to 100%.
Patent CA-2146385-C (CA)
IPC: G03B27/62
Filed: 1995-04-05
Granted: 1999-03-09
Abstract: A carrier device which can receive cartridges each containing a film from a lateral direction and send them reliably, efficiently and continuously to a photoprinting machine in a straight line, while holding them in position with an arm.  Cartridges are supplied one by one into the carrier device from a cartridge housing device located at the side of the carrier device.  The cartridge set in a carriage is retained in position by the arms and transferred to the printing device by driving the carriage with a motor of driving unit along the guide path.  The carriage has a cartridge retaining mechanism and an arm locking mechanism.
Patent CA-2151474-C (CA)
Inventor: DEL ROSSO VITTORIO
IPC: B60Q1/00
Filed: 1994-06-06
Granted: 2000-08-01
Abstract: A motor vehicle light switch is provided with a turn-pull switch (3) fitted in a housing (1) for the sidelights, headlamps and interior lighting. In order to perform other light-switching operations with such a switch, the housing (1) also contains a dipswitch (7), an on-off switch (8) for the foglamp, an on-off switch (9) for the rear foglamp and a control switch (10) for the dashboard lighting. Seek and function illumination is allocated to the individual switches (3,7,8,9,10).
Patent CA-2152664-C (CA)
Title: Injection molding nozzle with pressed in heating element and integral collar portion
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/74
Filed: 1995-06-26
Granted: 2008-10-14
Abstract: An injection molding nozzle with an outer collar portion extending around the rear end of an inner core portion. The nozzle has an electrical heating element with a helical portion extending in a spiral groove in the outer surface of the inner core portion. An integral one-piece construction is provided without having to overheat the heating element by the combination of the helical portion of the heating element being press fitted and reshaped into the groove and the outer collar portion and the inner core portion being secured together by a thermosetting ceramic sealant.