baber/WOPTO huggingface dataset:
Patent CA-2195738-C (CA)
Inventor: WARREN DAVID W
IPC: F26B3/18
Filed: 1997-01-22
Granted: 2000-10-31
Abstract: The invention comprises a process and an apparatus for high-intensity drying of fiber webs or sheets, such as newsprint, printing and writing papers, packaging paper, and paperboard or linerboard, as they are formed on a paper machine. The invention uses direct contact between the wet fiber web or sheet and various molten heat transfer fluids, such as liquified eutectic metal alloys, to impart heat at high rates over prolonged durations, in order to achieve ambient boiling of moisture contained within the web. The molten fluid contact process causes steam vapor to emanate from the web surface, without dilution by ambient air; and it is differentiated from the evaporative drying techniques of the prior industrial art, which depend on the uses of steam-heated cylinders to supply heat to the paper web surface, and ambient air to carry away moisture, which is evaporated from the web surface.      Contact between the wet fiber web and the molten fluid can be accomplished either by submersing the web within a molten bath or by coating the surface of the web with the molten media. Because of the high interfacial surface tension between the molten media and the cellulose fiber comprising the paper web, the molten media does not appreciately stick to the paper after it is dried. Steam generated from the paper web is collected and condensed without dilution by ambient air to allow heat recovery at significantly higher temperature levels than attainable in evaporative dryers.
Patent CA-2205211-C (CA)
Inventor: BRASZ JOOST J
IPC: F04D29/46
Filed: 1997-05-12
Granted: 2002-07-09
Abstract: A variable pipe diffuser is disclosed for use in a centrifugal compressor.  The variable pipe diffuser includes an outer ring and an inner ring which is rotatable circumferentially within the outer ring between a first, open position and a second, closed position.  In an open position, complementary air channel sections of the inner and outer rings are aligned with one another to allow a maximum flow of refrigerant through the diffuser.  In a closed position, the flow channels of the ring sections are misaligned and the flow of refrigerant through the diffuser is restricted.  By adjusting the diffuser rings toward a closed position, surge conditions can be avoided even in the case where a high compressor pressure ratio is required.
Patent CA-2207098-C (CA)
Inventor: EDGREN DAVID E
IPC: A61K9/22
Filed: 1996-02-09
Granted: 2006-10-24
Abstract: The present invention is directed to an active agent dosage form which is useful for the prolonged delivery of an active agent formulation to a fluid environment of use. The active agent dosage form is a matrix that has on its surface two or more insoluble bands. The invention is also directed to the method for making the active agent dosage form.
Patent CA-2207694-C (CA)
Inventor: WOOD ALBERT SHAW
IPC: C07D/
Filed: 1997-06-12
Granted: 1999-11-23
Abstract: A process for the preparation of a compound of formula (I): (see above formula) which comprises cyclisation of a compound of formula (II): (see above formula)
Patent CA-2211599-C (CA)
Title: Method of cleaning floors
Inventor: THOMAS JOHN E
IPC: B08B3/04
Filed: 1995-08-22
Granted: 2005-01-11
Abstract: Method of cleaning a hard surface (e.g. floor) in order to remove a complex soil comprises contacting the surface with a first cleaning composition which has a non-neutral pH and then contacting the surface with a second cleaning composition which has a complementary non-neutral pH to that of the first cleaning composition. (The term "complementary" refers to acidic or alkaline as appropriate). Mechanical force may be employed during the application of either or both of the cleaning compositions.
Patent CA-2212023-C (CA)
Title: Adjusting device for a screen of a computer
Inventor: YEN JUNG-CHUAN
IPC: G06F1/16
Filed: 1997-07-31
Granted: 2000-07-18
Abstract: An adjusting device for a screen of a computer includes a keyboard and a screen  combined  together  with the adjusting device for adjusting the position  of  the screen from the keyboard and  a  sloping  angle  of  the screen to the keyboard to suit to different  size  of  a user.  The device includes two  support bars  pivotally connected between the screen and two bottom bars fitting and movable in the bottom of the keyboard  in  a  preset distance from the keyboard. Then the dimensions  of  the keyboard to sit on a table may be increased to stabilize the computer securely.  Further, the angle of the  screen to the keyboard can be adjusted by pivotal connection of the support bars with the screen and also with the bottom bars.
Patent CA-2212977-C (CA)
Title: Method for plugging gas migration channels in the cement annulus of a wellbore using high viscosity polymers
Inventor: IRANI CYRUS A
IPC: E21B33/13
Filed: 1997-08-14
Granted: 2003-03-18
Abstract: A process for mitigating the effects of gas migration through channels in a cement sheath in a hydrocarbon production well by injecting a mixture of a carrier fluid with a dissolved polymer into the sheath and dropping the polymer out of solution to form polymers to plug the channels. The process utilizes the phase transition parameters of the mixture coupled with well conditions and/or injection parameters to cause the polymer to drop out of solution within the gas migration channels. The mixture can be injected through well perforations in the producing zone or perforations made in the wellbore adjacent the gas migration zone or directly into the cement sheath at the wellhead.
Patent CA-2218111-C (CA)
Inventor: BRIERLEY RUSSELL A
IPC: C12N15/18
Filed: 1996-04-12
Granted: 2008-07-08
Abstract: Disclosed is a process for obtaining purified, monomeric, intact, correctly-folded insulin-like growth factor-I (also known as somatomedin-C). The process includes the addition of an IGF-I  unfolding/refolding step and the substitution of a reverse phase chromatography step for a gel filtration chromatography step in order to increase the final yield. The process also includes the following steps in order. first cation exchange, unfolding/refolding, hydrophobic interaction chromatography, second cation exchange, and reverse phase chromatography.
Patent CA-2221018-C (CA)
Inventor: YAO JAMES JING
IPC: E21B17/042
Filed: 1997-12-05
Granted: 2000-07-11
Abstract: A drill rod for a drill string has a thread at each end and is connected to an adjacent rod by a sleeve. The threads on the sleeve and rod are configured to reduce stress concentrations and provide sacrificial wear on the sleeve. The thread has a single start with a part circular root and the wear volume on the sleeve is less than that on the rod. The outer diameter of the rod is at least twice that of the inner bore.
Patent CA-2221360-C (CA)
Inventor: GERBER PETER MICHEL
IPC: B01D17/05
Filed: 1996-06-04
Granted: 2007-05-15
Abstract: Process for removing unwanted material from wanted material containing water by bringing an isocyanate-containing prepolymer into contact with the materials, allowing the prepolymer to react with the water to form a flexible foam and removing the foam obtained from the wanted material.
Patent CA-2225121-C (CA)
Title: Microwave oven equipped with a structurally simple apparatus for generating a microwave frequency energy
Inventor: CHO GI-JUN
IPC: H01J23/20
Filed: 1997-12-17
Granted: 2002-02-26
Abstract: A microwave oven includes a cooking chamber, a waveguide, and an apparatus for generating a microwave frequency energy.          The apparatus includes a cathode for emitting electrons, a first grid for controlling and focusing the flow of electrons from  the  cathode,  a  choke  structure  for  serving  as  a capacitor, wherein the cathode, the first grid and the choke structure define an input cavity functioning as a resonant circuit, a trimming resistor for inducing a bias voltage on the first grid, a second grid provided above the first grid and having a plurality of holes through which the electron beams passing through the holes of the first grid pass, an anode for receiving the electrons passing through the holes of the second grid, cooling fins for cooling heat generated by the anode, a driving voltage source for providing a driving voltage  to  the  cathode  and  the  anode,  an  antenna  for extracting the microwave from an output cavity into the cooking chamber via the waveguide, the output cavity being defined by the second grid and the anode,  and a feedback structure for feeding a portion of the microwave frequency energy back to the input cavity.
Patent CA-2227981-C (CA)
Title: Automatic language translation technique for use in a telecommunications network
Inventor: SINKOVITS FRANK III
IPC: H04M3/42
Filed: 1998-01-26
Granted: 2001-03-27
Abstract: A telecommunications network (10) provides a connection between a calling and called parties (12, 12' and 14, 14', respectively) and advantageously translates information generated by the calling and called parties in accordance with language preferences entered by the called and calling parties, respectively.
Patent CA-2230397-C (CA)
Inventor: HUBER ULRICH ADRIAN
IPC: C07F7/10
Filed: 1998-02-24
Granted: 2007-09-18
Abstract: The invention is concerned with symmetrical compounds of formula I       wherein all X's are silicon residues S bonded to O via spacer groups Z  or two X's are silicon residues bonded to O via spacer groups Z and the third X is H or a silicon residue S bonded to O, in which the spacer group Z comprises a saturated or mono- or multiply-unsaturated alkyl group with 3 to 12 C atoms and the silicon residue S contains 1-8 Si atoms and comprises trialkyl-silyl or trialkoxy-silyl groups each containing 3-15 C atoms or an oligosiloxane.
Patent CA-2236151-C (CA)
Inventor: SUGG ROLIN W
IPC: C23C28/00
Filed: 1998-04-29
Granted: 2001-08-21
Abstract: An article, particularly a brass article, is coated with a multi-layer coating comprising a semi-bright nickel layer deposited on the surface of the article, a bright nickel layer deposited on the  semi-bright  nickel  layer,  a  nickel-tungsten-boron  layer deposited on the bright nickel layer, a chrome layer deposited on the nickel-tungsten-boron layer,  a  layer  comprised of a non-precious refractory metal deposited on the chrome layer, a sandwich layer comprised of alternating layers of non-precious refractory metal compound,  preferably zirconium nitride,  and non-precious refractory metal,  preferably zirconium, deposited on the non-precious refractory metal layer., a non-precious refractory metal compound such as zirconium nitride deposited on the sandwich layer, and a layer comprised of a non-precious refractory metal oxide or the reaction products of a non-precious refractory metal, oxygen and  nitrogen  deposited  on  the  non-precious  refractory  metal compound layer.  The coating provides the color of brass to the article  and  also  provides  abrasion  and  corrosion  protection.
Patent CA-2236673-C (CA)
Inventor: CHIU CHARLES K
IPC: A61P3/04
Filed: 1996-10-04
Granted: 2002-03-19
Abstract: L'invention se rapporte à un procédé de préparation efficace de (-) cis-6(S)-phényl-5(R)-[4-(2-pyrrolidin-1-yléthoxy)phényl]-5,6,7,8-tétrahydronaphthalen-2-ol D-tartrate.
Patent CA-2239841-C (CA)
Inventor: DESHPANDE RAJENDRA D
IPC: D21F3/02
Filed: 1998-06-08
Granted: 2004-01-20
Abstract: A press of the Beloit Extended Nip® type has a nip defined between a backing roll and an elongate shoe. A paper web travels on a dryer felt through the nip and is supported over the shoe by a bearing blanket. The shoe has a rigid concave core to which is fixed a layer of compliant material which defines a concave surface. Lubricant is introduced between the compliant material and the bearing blanket to form a hydrodynamic fluid film. Preferably the rigidity of the compliant material is of the same or lesser order of magnitude than the rigidity of the fluid film at the center of the shoe in the machine direction, such that the fluid film at the nip causes a depression in the compliant material which is filled with lubricant. The thickness of the lubricant is thus greater at the center of the shoe than at regions outward from the shoe center and the escape of lubricant from the shoe is retarded. The compliant material comprises an elastomer with a low coefficient of friction and high abrasion resistance. It has the ability to deform with increased pressure upon it, thus allowing a paper wad or web deformity to pass through the nip without damage to the bearing blanket.      Alternatively, the compliant layer may define a plurality of lubricant pockets.
Patent CA-2239928-C (CA)
Title: Apparatus for monitoring opening of sealed containers
Inventor: GAGNON ANDRE
IPC: G08B13/24
Filed: 1998-06-08
Granted: 2008-01-22
Abstract: Apparatus for monitoring opening of sealed enclosures, especially, but not exclusively, sealed containers containing goods-in-transit, such as goods vehicles, maritime containers or transport containers of the kind carried by tractor- trailers, ships, trains or aeroplanes comprises a radio receiver unit having at least one antenna for reception of radio signals. The receiver unit is housed within the enclosure and operates to scan a predetermined band of radio frequencies, periodically or continuously, and detect a sudden change in signal level. When it detects such a change in radio signal level, the receiver generates an alarm signal. Alternatively, the receiver may detect the difference between internal and external radio signal levels and determine the container to have been opened if the difference is less than a preset threshold. The receiver unit may be arranged to capture the FM frequency spectrum pertaining when the opening occurred and store it for later comparison with known FM frequency spectra of various cities to identify the location of the enclosure when opening occurred.
Patent CA-2240931-C (CA)
Title: Signatures de sources sismiques marines
Inventor: ZIOLKOWSKI ANTONI MARJAN
IPC: G01V1/137
Filed: 1996-12-20
Granted: 2001-03-13
Abstract: Procédé permettant de déterminer la signature de champ lointain de l'onde sismique produite par au moins une source sismique marine (20), qui consiste à monter un dispositif (2) détecteur de pression sur chaque source sismique (20) et à prendre en considération les composantes tant linéaires que non linéaires des mesures de pression effectuées par le dispositif détecteur de pression pour déterminer la signature de champ lointain de l'onde sismique. La présente invention concerne la génération d'une onde sismique à partir d'une seule source sismique et d'un ensemble de sources sismiques et concerne également un appareil de sources sismiques marines.
Patent CA-2249880-C (CA)
Title: Charge balance device
Inventor: DERRYBERRY ANDY L
IPC: F25B41/06
Filed: 1998-10-08
Granted: 2002-12-24
Abstract: The present invention is a charge balance device for a heat pump. The heat pump system has a heating and a cooling mode and includes an indoor heat exchanger, an outdoor heat exchanger, a compressor, refrigerant circuitry connecting the heat exchangers and the compressor in series arrangement, with the charge balance device connected in parallel arrangement with the outdoor heat exchanger. An accumulator is connected in line with the refrigerant circuit at a point immediately upstream of the suction side of the compressor for storing excess liquid refrigerant during heating mode. The charge balance device includes a check valve for blocking refrigerant flow, thus preventing the diversion of refrigerant flow around the outdoor heat exchanger during cooling mode, and a restrictor orifice for throttling refrigerant flow, thus regulating the flow of refrigerant diverted around the outdoor heat exchanger during heating mode. The check valve and restriction orifice are integrally formed for diverting a regulated portion of liquid refrigerant around the outdoor heat exchanger during heating mode such that excess liquid refrigerant is allowed to be stored in the accumulator at a relatively low pressure.
Patent CA-2253970-C (CA)
Title: System and method for electronic mass mailing
Inventor: MITCHELL PAUL H
IPC: G06Q10/00
Filed: 1998-11-12
Granted: 2003-03-25
Abstract: A system and method for electronically delivering a batch of mail having a plurality of mailpieces. The system includes a database having a plurality of instruction templates, wherein each template corresponds to one of a plurality of electronic delivery mechanisms. An electronic inserter operative to generate electronic insert mailpieces and a computer processor is provided for associating each mailpiece with at least one instruction template for coupling each mailpiece with at least one electronic mailpiece. An electronic message router is provided for delivering the electronic mailpieces and coupled electronic insert mailpieces by one of the plurality of electronic delivery mechanism.
Patent CA-2257189-C (CA)
Title: Delivery of short messages in a packet radio network
Inventor: HAUMONT SERGE
IPC: H04Q3/58
Filed: 1998-04-01
Granted: 2008-01-22
Abstract: The invention relates to delivery of short messages to mobile stations and particularly to delivery of short messages in mobility-supporting packet radio networks that use a mobile communications network as an access network, to a dual-mode mobile station in a situation where the mobile station is not reachable in the pack et radio network. The object of the invention is to minimize unnecessary signalling. The invention is based on the fact that parameters controlling the network elements are inserted into the signalling messages and a flag indicating the state of the mobile station is inserted into the home location register. In the method and radio network of the invention, the signalling messages may contain parameters by means of which 1) delivery of a short message through the secondary network is prevented, 2) information on the fact that an attempt was made to reach the mobile station but the attempt was not successful is sent to the node of the secondary network, 3) the node of the secondary network is prevented from informing the home location register of the mobile station of the attach of the mobile station to the network, 4) information is sent to the home location register on the fact that the mobile station cannot be reached through the primary network, and 5) information issent to the gateway mobile switching center for short message service on the fact that the mobile station can be reached through the primary network even though the short message was delivered through the secondary network.
Patent CA-2258157-C (CA)
Title: Compositions containing 4-tert-butyl-4'-methoxy-dibenzoylmethane, a 1,3,5-triazine derivative and an alkyl (.alpha.-cyano)-.beta.,.beta.'-diphe nylacrylate and uses
Inventor: ALLARD DELPHINE
IPC: A61K8/30
Filed: 1997-06-12
Granted: 2004-02-10
Abstract: The invention discloses novel cosmetic and/or dermatological compositions comprising, in a cosmetically and/or dermatologically acceptable carries, i) 4-tert-butyl-4'-methoxydibenzoyl-methane; ii)at least one specific 1,3,5-triazine derivative and iii) at least one alkyl  beta , beta '-diphenylacrylate or alkyl  alpha -cyano- beta , beta '-diphenylacrylate. These compositions are particularly photostable. The invention also discloses the use of these compositions in the field of cosmetics and/or dermatology.
Patent CA-2264982-C (CA)
Inventor: NEDEZ CHRISTOPHE
IPC: B01D53/86
Filed: 1999-03-30
Granted: 2009-05-19
Abstract: The elimination of halogenated compounds contained in a gas or a liquid is carried out by contacting the gas or the liquid in an alumina and/or hydrate alumina based composition and at least a compound A comprising at least of a metallic element chosen from group VII, IB and/or IIB of the periodic table. The metal's content is at most 45 wt.% wrt. the total weight of the composition. The composition is obtained as follows: (a) impregnation of one or several compounds (B) in alumina and/or hydrated alumina, followed by a thermal treatment at temperature greater or equal 100o C or between 200-1200o C or preferably 300-1000o C; (b) impregnation of one or several compounds (A) in alumina and/or hydrated alumina, followed by a thermal treatment at temperature greater or equal 100o C or between 150-600o C or preferably 200-550o C. It can also be obtained by starting with step (b) then step (a) or by introducing simultaneously A and B in alumina and/or hydrated alumina followed by the thermal treatment. In the latter case, the thermal treatment is carried out at 150-1200o C and/or preferably 200-1000o C.
Patent CA-2267735-C (CA)
Inventor: MOODY EUGENE I
IPC: F26B23/00
Filed: 1999-03-30
Granted: 2002-02-19
Abstract: A grain drying apparatus uses the heat of an engine to aid in the evaporative process. The grain drying apparatus provides an engine 20 which is used to power a fan 40. Waste heat generated by the engine is transferred to air driven by fan 40 through air duct 70 by three principle means. Air is initially warmed by contact with the engine and its radiator prior to entering the air duct 60. An exhaust pipe 50 and catalytic converter 52, carried by the engine, extends a part of the length of the elongated air duct 70, warming the air flow within the duct by contact. A finned heat exchanger tube 60, also carried within the elongated air duct, transfers heat to the air flow within the duct. An air intake pipe transfers air under pressure into a fuel tank, where the air mixes with fuel vapors. The air and fuel vapor mix is then transferred to the exhaust pipe, where combustion takes place, thereby increasing the heat flow from the finned heat exchanger. Cooled exhaust gas from the finned heat exchanger tube 60 is optionally routed through a dehydration canister and into the grain storage area where the treated exhaust gases displace the air, providing an atmosphere which protects the grain from bacteria, insects and rodents.
Patent CA-2274157-C (CA)
Inventor: KOSO ARTO
IPC: D21F11/00
Filed: 1997-12-18
Granted: 2004-09-21
Abstract: A non-woven web of fibrous material is produced using a moving foraminous element in the practice of the foam process. A first foam slurry of air water, fibers and a surfactant is generated and centrifugally pumped into contact with the moving foraminous element. Substantially fiber-free foam is withdrawn from the foraminous element while forming a non-woven web of fibrous material on the foraminous element, and at least a part of the substantially fiber-free foam is used in the generation of the first foam slurry. Recycling is also typically practiced using a centrifugal pump, and the centrifugal pumps are preferably degassing pumps which remove some of the gas from the foam. By practicing the invention it is possible to produce fibrous webs using the foam process that are more than two meters wide, and at a forming speed of more than about 100 m/min (e.g. about 200-50 0 m/min).
Patent CA-2274490-C (CA)
Inventor: MAUCLERE PHILIPPE
IPC: C12N15/09
Filed: 1997-12-08
Granted: 2013-02-12
Abstract: The invention concerns retroviral strains of the group HIV-1, non-M non-O, particularly a strain called YBF30, its fragments and its applications as diagnosis reagent and as immunogenic agent. The HIV-2 different both from the group M and from the group O have the following characteristics: little or no serological response with respect to proteins of groups M and O and strong serological response with respect to proteins derived from the YBF30 strain or the SIV CPZGAB strain; absence of genomic amplification by the primers of regions env and gag of the HIV-1-1 of groups M and O; genomic amplification in the presence of the primers derived from the YBF30 strain; and homology of the envelope gene products higher than 70 % with respect to the YBF30 strain.