baber/WOPTO huggingface dataset:
Patent CA-2010008-A1 (CA)
Title: Method and apparatus for increasing radiant heat production of hydrocarbon fuel combustion systems
Inventor: HILLIARD JOHN C
IPC: F23D14/78
Filed: 1990-02-14
Abstract: ABSTRACT OF THE DISCLOSURE A method and apparatus for increasing radiant heat production of hydrocarbon fuel combustion systems are provided.  In one aspect, the apparatus includes a pair of spaced electrodes through which a hydrocarbon fuel gas is flowed.  An electric arc is struck across the electrode gap to pyrolyze a portion of the hydrocarbon fuel gas, leading to the formation of carbonaceous heat radiative bodies which are entrained in the hydrocarbon fuel gas stream.  In the presence of an oxidant gas such as air, a turbulent diffusion flame is created having an increased luminous radiant heat output, an improved turn-down ratio, increased flame stability, and reduced nitric oxide emissions. The method and apparatus are particularly adapted to increasing the luminous radiant output of hydrocarbon fuels having a low carbon-to-hydrogen ratio such as natural gas.  In another aspect, a method and apparatus are provided by which the accumulation of pyrolytically formed carbonaceous bodies on an electrode during the pyrolysis of a hydrocarbon gas is effectively prevented by a secondary gas jet.  In still another aspect, the present invention provides a method and apparatus for controlling the rate at which heat-radiative carbonaceous particles in a diffusion flame are oxidized by introducing a protective sheath of non-oxidant gas as a tertiary flow circumferentially around a stream of fuel gas having entrained heat-radiative carbonaceous particles.  Various modification of these methods and apparatus are also provided.
Patent CA-2012578-A1 (CA)
IPC: H02M7/162
Filed: 1990-03-20
Abstract: Disclosed is an improved electric power conversion system comprising a multi-phase bridge circuit composed of semiconductors such as thyristors and an associated firing circuit.  It is so constructed that: if the AC input current Iac flowing in said bridge circuit is equal to or larger in value than the DC output current Idc flowing out of the bridge circuit, it will be decided that an inner defect or fault is caused, and possible expansion of inner defect will be prevented by disabling the firing circuit to extinguish said thyristors in the bridge circuit, and if the AC input current Iac is smaller than the DC output current Idc in value, the bridge is permitted to continue the operation of power conversion, thus eliminating unnecessary interruption which otherwise would be caused by exterior disturbances. Also, an improved electric power conversion system may be equipped with a device to prevent an adverse effect from being caused by abnormal rise of thyristors' temperature.
Patent CA-2013006-A1 (CA)
Title: Reagent complex for immunoassay
Inventor: KEY MARC E
IPC: G01N33/531
Filed: 1990-03-23
Abstract: REAGENT COMPLEX FOR IMMUNOASSAY            ABSTRACT OF THE DISCLOSURE Methods and a reagent complex suitable for attaching detectable signals to specific-binding reagents, the complex comprising a first unlabelled antibody, wherein the first antibody has free specific-binding affinity for an analyte or an analyte-specific binding reagent; and a second antibody having specific-binding affinity for an Fc region of the first antibody, the second antibody being bound to the Fc region to form the complex and being labelled with a detectable signal.
Patent CA-2014223-A1 (CA)
Inventor: MENARD ALBERT A
IPC: B60T13/22
Filed: 1990-04-09
Abstract: A brake release mechanism for a vehicle provided with a main retrieval hook is disclosed.  The brake release mechanism comprises a hydraulic cylinder having its piston rod terminated in the form of a hook which is located within the main retrieval hook of the vehicle, a shuttle valve located in the main hydraulic line interconnecting the regular spring applied brake to a hydraulic pressure supply, and an auxiliary hydraulic line interconnecting the shuttle valve and the hydraulic cylinder for applying fluid pressure to the spring applied brake through the shuttle valve in case of loss of pressure from the regular hydraulic pressure supply.  The above mechanism allows the hook of the piston rod to be engaged at the same time as the regular retrieval hook to disengage the brake while pulling on the stranded vehicle.
Patent CA-2014516-A1 (CA)
Title: Transparent, compact polyurethane casting compositions that are sterilizable with superheated steam, process for preparing same, and their use, particularly for medical-technical particles
Inventor: HORN PETER
IPC: C08G18/10
Filed: 1990-04-12
Abstract: The invention relates to transparent, substantially compact polyurethane casting compositions, sterilizable with superheated steam, which are prepared by the reaction of:         A)  modified diphenylmethane diisocyanates (A) that are liquid at 23°C and are in turn are obtained by the reaction of 1)   a diphenylmethane diisocyanate isomer mixture, which in terms of 100 parts by weight comprises 60 to 90 parts by weight of 4,4'-diphenylmethane diisocyanate, 40 to 8 parts by weight of 2, 4'-diphenylmethane diisocyanate, and 0 to 5 parts by weight of 2,2'-diphenylmethane diisocyanate with 2)   at least one polyoxypropylene polyol initiated with glycerine and/or trimethylol propane, having a molecular weight of 350 to 800 with a ratio of NCO:OH groups of 2.5:1 to 15:1, with B)   at least one compound having at least two reactive hydrogen atoms in the presence or absence of C)  catalysts, as well as to a process for preparing the polyurethane casting compounds and their use for medical-technical articles.
Patent CA-2014521-A1 (CA)
Inventor: BRAQUET PIERRE
IPC: A61K31/495
Filed: 1990-04-12
Abstract: This invention relates to piperazine derivatives of the general formula I     (see fig.I) wherein -(CH2)n- represents a straight or branched chain alkyl group having from n = 1 to n = 20 carbon atoms, and R represents a hydrogen atom,  a branched alkyl rest, a cycloalkyl group having from 5 to  10 carbon atoms,  a phenyl group,  optionally substituted by one or several chlorine atoms, methyl or methoxy groups, or straight or branched chain alkenyl groups having from 3 to 11 carbon atoms, to a preparation process of said compounds and to therapeutic  compositions  containing  them  as  an  active ingredient.
Patent CA-2015235-A1 (CA)
Inventor: ISENBERG SHERWIN J
IPC: A61P31/04
Filed: 1990-04-24
Abstract: A composition for neonatal ophthalmic prophylactic and a method of applying the composition.  The composition comprises an aqueous solution of povidone-iodine having a concentration ranging from 5 percent to 0.1 percent.  The composition of this invention prevents conjunctivitis caused by gonococcus and other bacteria including chlamydia, as well as viruses and fungi.
Patent CA-2016385-A1 (CA)
Title: Tumor-associated antigen, antibodies, compositions and uses therefor
Inventor: GRAUER LANA S
IPC: C07K16/00
Filed: 1990-05-09
Abstract: ABSTRACT            An antigen, characterized by its reactivity to monoclonal antibody CCK061 and antibody CCR086, is a glycoprotein having a molecular weight in the range of about 600,000 to about 1,000,000 daltons and isoelectric points in the ranges of about 4.3 to about 4.5 and about 4.8 to about 5Ø  Antibodies directed against the antigen, methods for their production and diagnostic and therapeutic uses therefor are provided.
Patent CA-2016734-A1 (CA)
IPC: A61M5/31
Filed: 1990-05-14
Abstract: An operable syringe assembly comprises a barrel (21) including a cylindrical coextruded body portion (22) having a longitudinal axis. The body portion (22) forms a side wall (25) spaced from the axis defining a chamber (27) for retaining fluid. The body portion (22) includes an open proximal end (28) and a distal end (29) and further includes an inner portion (31) of plastic material and a rigid portion (32) of plastic material surrounding the inner portion (31). The rigid portion (32) has a higher hardness than the inner portion (31). A plunger (40) including an elongate shaft portion (41) having a proximal end (43), a distal end (44) and a rigid piston (45) at the distal end (44) is provided. The piston (45) has an outside diameter greater than the inside diameter of the inner portion (31) and a higher hardness than the inner portion (31). The piston portion (45) is slidably positioned in fluid-tight engagement inside the barrel (21). The fluid-tight engagement is caused by the piston (45) compressing the inner portion (31) of the plastic material of the coextruded body portion (22). The proximal end (43) of the plunger (40) extends outwardly from the open proximal end (28) of the barrel (21) to facilitate moving the piston portion (45) with respect to the barrel (21).
Patent CA-2017880-A1 (CA)
Title: Proteinaceous material
Inventor: MAI JIMBIN
IPC: A23L33/20
Filed: 1990-05-30
Abstract: Q 6014 (R) ABSTRACT            A fat substitute is prepared from proteinaceous material which delivers the creamy mouthfeel of fat without the high calorie content or cholesterol of fat. The fat substitute is prepared by adjusting the pH of the food protein to its isoelectric point under conditions which prevent self aggregation of the proteins. This procedure causes the protein molecules to form microglobular particles. Concentration of the microglobular particles yields the fat substitute.            To impart flavor to the fat substitute, food flavors can be incorporated during the process. The product can be consumed as it is or it can be utilized as a fat and incorporated into other food products as a fat replacement.
Patent CA-2019866-A1 (CA)
Title: Process for the production of aqueous polyurethane dispersions
Inventor: REIFF HELMUT
IPC: C08G18/32
Filed: 1990-06-26
Abstract: Mo3419 LeA 27,009 A PROCESS FOR THE PRODUCTION OF AQUEOUS POLYURETHANE DISPERSIONS                 ABSTRACT    The present invention relates to a process for the production of aqueous dispersions of polyurethanes containing chemically incorporated carboxylate groups wherein the counterions to the carboxylate groups are predominantly ammonium ions corresponding to the formula ?H4                    (II) by mixing a starting aqueous dispersion of polyurethanes containing chemically incorporated carboxylate groups wherein the counterions to the carboxylate groups are ammonium ions corresponding to the formula            (III) wherein R1, R2 and R3 are the same or different and represent C1-4 alkyl groups, provided that the total number of carbon atoms in these substituents is 3 to 6, with at least an equivalent quantity of ammonia, based on the trialkyl ammonium ions, and subsequently removing under vacuum at least a portion of the displaced trialkyl amines and the excess ammonia, if present.     Mo3419
Patent CA-2020237-A1 (CA)
IPC: G03F7/20
Filed: 1990-06-29
Abstract: Abstract Fabrication of devices of micron and submicron minimum feature size is accomplished by lithographic processing involving a back focal plane filter. A particularly important fabrication approach depends upon mask patterns which produce images based on discrimination as between scattered and unscattered radiation by accelerated electrons.
Patent CA-2020317-A1 (CA)
Inventor: GALVIN MARK P
IPC: F02M67/14
Filed: 1990-07-03
Abstract: ABSTRACT OF DISCLOSURE         A fuel supply system for a single or multi-cylind-er  internal  combustion  engine  (1)  of  the  compression ignition kind (eg a diesel engine) and including a liquid fuel injection means  (2) for injecting liquid fuel into the combustion chamber(s) of the engine (1);   the  system employing a main supply  source of  liquid alcohol fuel (4) such as methanol as the principal fuel for the engine and an ether pilot fuel having a wider flammability range and lower ignition temperature than the principal alcohol fuel.   Prescribed  quantities  of  the  ether  pilot  fuel are arranged to be delivered to the engine  (1) during operation  for mixing  with  the principal  fuel  (4)  and ignition of the delivered pilot fuel to raise the temper-ature of the fuel mixture in the combustion chamber(s) sufficiently  to enable full  ignition under  compression of the principal fuel.  The system preferably  including means for producing the ether pilot fuel from a bye-pass supply  (7,8,9) of the principal liquid alcohol fuel (4) by  way  of  a heat  exchanger/catalytic  convertor device 10;  and  including a condensation     means  (16,18)  for removal of at least a part of any any readily condensible content of the pilot fuel before delivery to the engine (1) to permit ignition under compression of the delivered pilot fuel.
Patent CA-2020783-A1 (CA)
Title: Rod holder
Inventor: MOELLER DAVID E
IPC: A47F7/00
Filed: 1990-07-10
Abstract: ROD HOLDER   ABSTRACT     The bracket 6 of the rod holder 2 is constructed of substantially resiliently flexible material and has four slots 24, 26 28 and 30 in the rim 18 thereof, which depend to points 37 substantially contiguous to the base plate 4, so that the bracket is divided into pairs of relatively resiliently displaceable body portions 38, 40 42, 44, and 46.  The walls 36 of the body portions have successive pairs of part annular collar sections 34 therein, which define successively smaller clamping rings 48, with nips 50 therebetween, as the slots depend toward the plate 4. As a result, when a rod 96 is impaled in the V-shaped kerf of a slot, it can seek that ring 48 which will grip it against dislodgement, when the caduceus-like clamps 32 at the walls of the body portions, relax about the rod.
Patent CA-2024189-A1 (CA)
Title: Bismaleimide resin compositions
Inventor: HO KAM W
IPC: C08L45/00
Filed: 1990-08-28
Abstract: BISMALEIMIDE RESIN COMPOSITIONS    Abstract of the Disclosure This invention relates to thermosettable bismaleimide resin compositions, and to cured bismaleimide thermoset resins.         The compositions of the present invention contain an additive which is the reaction product of an epoxide and a second reactant selected from an aromatic polyhydroxyl, an aromatic amide or an aromatic amine.  The thermoset resins have surprising strength and modulus properties, and are suitable for use in the preparation of composite materials.
Patent CA-2028966-A1 (CA)
Title: Distortion canceling fiber optic transmission system
Inventor: JEFFERS MICHAEL F
IPC: H04B1/10
Filed: 1990-10-31
Abstract: A fiber optic communication system provides parallel paths to enable cancelation of even order harmonic distortion components.  A pair of parallel optical fibers is provided.  Each of the fibers is coupled to a corresponding transmitter at one end of the pair and to a corresponding receiver at the other end of the pair.  The transmitters are modulated with an input signal applied to the transmitters at a 180° phase differential.  The 180° phase shifted signals are combined at the receivers to recover the input signal while canceling even order distortion products introduced by the transmitters.  A method is provided for balancing the system upon installation.
Patent CA-2029725-A1 (CA)
Title: Air safety belt for toddlers
Inventor: RASHID SHAHID J
IPC: A62B35/00
Filed: 1990-11-13
Abstract: ABSTRACT             AIR SAFETY BELT FOR TODDLERS            In considerations of safety of children, who are accompanying adults while travelling by commercial airlines. Usually these toddlers under certain age do not get a seat of their own, as their parents do not wish to purchase a ticket for them, hence they sit in the laps of adults for the duration of the flights. In case of an emergency and unexpected air turbulents, the child sitting in the lap of an adult usually is embrassed by the adult's arms and is held down. But as we have seen recently on T.V. the accident in Iowa's Corn Fields where a passenger jet liner crashed. Some children were killed because the impact of the plane on to the ground forced these children out of the arms of the adults and tossed them inside the plane where consequently they perished. Whereas the adults who were carrying these children in their laps survived because they had their seat belts on. The AIR SAFETY BELT FOR TODDLERS will allow the adults to carry their children in their laps safely while travelling in a commercial airline. AIR SAFETY BELT FOR TODDLERS allows the adults to attach the toddler to their body so as to prevent them from been forced out of their laps in case of an emergency or sever turbulents. This device is easily worn by the toddlers, and then the device attaches to the adult in whose lap the child will be travelling. The adult is secured by the seat belt which is provided by the airlines.
Patent CA-2030350-A1 (CA)
IPC: B01J3/06
Filed: 1990-11-20
Abstract: ABSTRACT OF THE DISCLOSURE           A hard sintered compact for tools is a sintered compact obtained by super-high pressure sintering of 45 -75% by vol. of cubic boron nitride powder and the remaining proportion of binder powder.  The binder includes 5 - 25% by wt.  of A? and a balance of at least one compound represented by (Hf1-z Mz) C (where M denotes an element of group IVa, Va or VIa of the periodic tablet other than Hf, and the relationship 0 ? z ? 0.3 is satisfied).   As a result of this composition, improvements in strength, wear resistance and heat resistance are achieved, and a hard sintered compact for tools having excellent strength and excellent wear resistance can be obtained.
Patent CA-2032589-A1 (CA)
Title: Liquid propellant supply device for spacecraft adapted to predict the end of its service life
Inventor: PERDU MICHEL
IPC: F02K9/44
Filed: 1990-12-18
Abstract: ABSTRACT OF THE DISCLOSURE     A liquid propellant  supply device  for satellites comprises  an  inlet  pipe  connected  to  a  source  of pressurizing  gas,   an  outlet  pipe  connected  to  a propellant distribution manifold and a main storage tank connected at an inlet orifice to the inlet pipe and at an outlet orifice to the outlet pipe.  The main storage tank contains a capillary action propellant retention device between the interior of the main storage tank and the outlet pipe.  The device further comprises, on the outlet pipe,  starting from the main storage tank,  a gas test device adapted to detect the presence in the outlet pipe of a significant quantity of gas followed by an auxiliary storage tank substantially smaller than the main storage tank and including a second capillary action propellant retention device separating the interior of the auxiliary storage tank and the distribution manifold.
Patent CA-2034449-A1 (CA)
Title: Plugstop
Inventor: MARINO JOHN
IPC: E05B65/00
Filed: 1991-01-17
Abstract: FORM                  (ss 21, 31, 34 and 142) ABSTRACT          The "TV AND appliance lock called PLUGSTOP" is a product used to sure from use any appliance or device whose power is conducted along an electrical power cord terminating in a plug which must be connected to an electric power outlet. It can be used to prevent the unauthorized use of televisions, computers, power tools, etc. It is especially useful to maintain security in the case of computers; to maintain safety in the case of power tools in the home; to maintain some regulation over the viewing of television.          Although some electronics such as computers and televisions can have access codes programmed directly into them, this product will make security available to every model, with or without security access codes being present.  The low price of the TV and appliance lock (PLUGSTOP) will make it possible for the average household to purchase several of these devices to secure many different appliances as needed Whether used with a key locking device or combination lock, all "PLUGSTOP" appliance locking devices in one household could be unlocked with an identical key or combination for greater ease of use.          As an added feature, the appliance locking device is able to be securely attached onto the electrical appliance cord when the appliance is in use (and the "PLUGSTOP" is not required) thus preventing loss of the device.
Patent CA-2034676-A1 (CA)
Inventor: JOHNSON DWIGHT N
IPC: F16L47/34
Filed: 1991-01-24
Abstract: A fluid connection is made to a conduit with a fluid connector by piercing a wall of the conduit. The connector includes a hollow nose portion. The connector is mounted on a tool having a punch pin extending through and beyond the nose portion. The wall is pierced by a point on the punch pin, and the hole is enlarged by forcing the nose portion through the wall while the punch pin supports the wall of the nose portion. A fluid tight seal is formed between the nose portion and a collar of deformed wall material.
Patent CA-2035426-A1 (CA)
Title: Catalytic carbonylation process
Inventor: SMITH DAVID W
IPC: C07C47/02
Filed: 1991-01-31
Abstract: ABSTRACT OF THE DISCLOSURE           A process is disclosed for the carbonylation of an organic compound selected from the group consisting of an olefin, an alcohol, an acid and an ester.  In this process he organic compound is reacted with carbon monoxide in the presence of a Group VIII metal-containing catalyst.  The liquid carbonylation product solution of this reaction is conveyed to a separation zone maintained at a lower total pressure than is the pressure in the reaction zone.          Simultaneously with the conveyance of the liquid product solution to the separation zone is the introduction therein of a carbon monoxide-containing gaseous stream, the carbon monoxide therein contributing a partial pressure of up to 30 psia to the total pressure of said separation zone.  A portion of the liquid carbonylation product solution is flashed and removed from the separation zone.  The unflashed liquid carbonylation product solution is recycled into the reaction zone.
Patent CA-2035900-A1 (CA)
Inventor: CAPUT DANIEL
IPC: C12N15/85
Filed: 1990-07-13
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-2035922-A1 (CA)
Title: Two-stage joule-thomson cryostat with gas supply management system, and uses thereof
Inventor: SKERTIC MATTHEW M
IPC: F25B9/10
Filed: 1991-02-07
Abstract: TWO-STAGE JOULE-THOMSON CRYOSTAT WITH GAS SUPPLY MANAGEMENT SYSTEM, AND USES THEREOF            ABSTRACT OF THE DISCLOSURE        A  two-stage Joule-Thomson cryostat (10) has a first-stage  cryostat  (12)  with a helical-coil heat exchanger  (14)  and  an  isenthalpic  gas  expansion orifice  (20) that discharges a mixture of cooled gas and  cryogenic  liquid  into  a liquid cryogen plenum (26).    A  second-stage cryostat (30) with a helical coil  heat exchanger (32), wound to a larger diameter than  the  first-stage  heat  exchanger coil (14), is wound  around  and in thermal contact with the liquid cryogen  plenum  (26).    This arrangement achieves a high  degree  of interstage heat transfer and cooling of   the   gas   flowing  in  the  second-stage  heat exchanger  coil  (32)  by  the  liquid cryogen in the first-stage   liquid   cryogen   plenum   (26).    In operation,   a   gas  flow  management  system  (60), designed  for  rapid  cooldown,  initially  passes  a first  gas  of  high  specific refrigerating capacity through  both  stages  (12  and 30).  When the stages and   structure   are   sufficiently  cooled  to  the near-vicinity  of  the  normal boiling temperature of the  first gas, the flow of the first gas through the second-stage  cryostat  (30)  is  discontinued, and a flow   of  a  second  gas  of  lower  normal  boiling temperature  than the first gas is passed through the second-stage  cryostat  (30).   The flow of the first gas continues through the first-stage cryostat (30).