baber/WOPTO huggingface dataset:
Patent CA-2033047-A1 (CA)
Inventor: CAUBERE PAUL
IPC: B01J23/28
Filed: 1990-12-21
Abstract: Process for the epoxydation of an unsaturated (meth)acrylic compound of formula: <IMAGE> in which R1 is chosen from H and C1-C5 alkyl; R2 is chosen from H, alkyl and aryl; R3 is a linear, branched or cyclic alkylene or oxyalkylene radical containing from 1 to 12 carbon atoms, it being possible for one of the carbon atoms of R2, when the latter is an alkyl radical, to be bonded to one of the carbon atoms of R3 to form a ring; and A is chosen from O, S, NH and NR4, R4 being a C1-C12 alkyl group; by action of hydrogen peroxide on the said unsaturated (meth)acrylic compound at a temperature of between 10 DEG C and 50 DEG C in the presence of at least one catalyst chosen from alkali metal molybdates and pertungstates and in the presence of at least one phase transfer agent.
Patent CA-2033142-A1 (CA)
Inventor: HAYASHI MISHIO
IPC: H04J3/06
Filed: 1990-12-24
Abstract: ABSTRACT OF THE DISCLOSURE    In a high-speed data multiplexing device with a plurality of data multiplexing circuits there are included in each data multiplexing circuit a frequency divider for frequency dividing the same clock and a logic circuit for time division multiplexing input data of a plurality of channels in accordance with the output of the frequency divider.  The outputs of the frequency dividers are subjected to a logical operation by a gate circuit.  A voltage corresponding to the duty ratio of the operated output from the gate circuit is compared with a reference voltage in a detector/controller section.  It is determined, based on the result of comparison, whether or not the frequency dividing phases of the frequency dividers of the data multiplexing circuits are uniform, and if not, a reset signal is applied to the frequency dividers to reset them to thereby make their frequency dividing phases uniform.
Patent CA-2034165-A1 (CA)
Title: Blended polycaprolactone thermoplastic molding composition
Inventor: OXMAN JOEL D
IPC: A61K6/891
Filed: 1991-01-15
Abstract: ABSTRACT OF THE DISCLOSURE Thermoplastic molding compositions are made from a blend of high molecular weight and low molecular weight polycaprolactones.  The blends have lower viscosity, and can have higher modulus, than a composition containing only high molecular weight polycaprolactone.  The blends are especially useful for dental impressioning.
Patent CA-2034920-A1 (CA)
Title: Cathode/heater assembly for electron-beam devices
Inventor: OSAULENKO NIKOLAI F
IPC: H01J1/15
Filed: 1991-01-25
Abstract: CATHODE/HEATER ASSEMBLY FOR ELECTRON-BEAM                   DEVICES ABSTRACT       A cathode/heater assembly comprises an emitter mounted on at least one heater element fitted to current-conducting leads rigidly fixed to a base of electrically insulating material, mounting a repeller with a concave surface fac-ing the emitter's nonoperating surface and having a focal length of at least one and a half times greater than the emitter's transverse dimension. The spacing L from the re-peller to the emitter is within the limits from 0.15R to 0.75R, where R is the radius of curvature of the repel-ler's concave surface in the axial direction.
Patent CA-2035037-A1 (CA)
Title: Roof jack
Inventor: BLAIR EARL
IPC: E04D13/147
Filed: 1990-06-29
Abstract: A roof jack (10) with a planar portion (15) a frusto conical upstanding portion (16), a transition region (20) and a stepped sealing portion (21). The roof jack is unitary of vacuum formed polymeric sheet material. The planar portion (15) lies on the roof surface and is sealed thereto. The frusto conical portion (16) is elevated above the roof surface and ends at the transitional portion which is corrugated to allow bending to conform to the pitch angle of the roof without distorting any of the other portions. A  stepped roof jack (50) for flat roofs is disclosed with a protective cap (53). The roof jack (50) includes a runoff (56). Another embodiment the planar portion (101) includes longitudinal corrugations (102) to provide preferred bending to allow it to conform to shaped roofs such as spanish tiles. A bendable stiffener member (115) allows the planar portion to be bent and retain a selected shape.
Patent CA-2036318-A1 (CA)
Title: Rubber-modified polymer blends of polycarbonate and petg
Inventor: UDIPI KISHORE
IPC: C08L69/00
Filed: 1991-02-14
Abstract: 08-21(8837)A     ABSTRACT OF THE DISCLOSURE  Polymer blends useful as thermoplastic molding resins comprise PC, PETG and sufficient rubber, e.g. nitrile rubber or ethylene-acrylate copolymer rubber, to enhance the moldability of the blend.  Preferred blends comprise at least 30% PC, 30% PETG and 5% rubber.
Patent CA-2039259-A1 (CA)
Title: Bispecific monoclonal antibodies, their production and use
Inventor: YAMAZAKI HIROH
IPC: C07K16/28
Filed: 1991-03-27
Abstract: TITLE: BISPECIFIC MONOCLONAL ANTIBODIES, THEIR        PRODUCTION AND USE                 ABSTRACT      Disclosed are a bispecific hybrid MoAb having specificity for both an activated platelet and a substance having thrombolytic activity, and a thrombolytic agent comprising the above bispecific MoAb and a substance having thrombolytic activity immunologically bound thereto, whereby efficient, rapid thrombolysis is possible.
Patent CA-2040041-A1 (CA)
Title: Molded article of norbornene-based polymer
Inventor: KOHARA TEIJI
IPC: C08K3/00
Filed: 1991-04-09
Abstract: ABSTRACT OF DISCLOSURE         A molded article, particularly for optical use, formed of a thermoplastic saturated norbornene-based polymer composition comprising a thermoplastic saturated norbornene-based polymer excellent in heat resistance, etc., and a filler, the composition being capable of preventing cracks even when an insertion part having a linear expansion coefficient greatly different from that of the polymer is present and a thermal change occurs.          The filler is selected from a fibrous filler and a combination of a fibrous filler with a powdery filler.
Patent CA-2040504-A1 (CA)
Title: Anhydrous metal salts of .alpha., .beta.-ethylenically unsaturated carboxylic acids and related methods
Inventor: OBERSTER ARTHUR E
IPC: C07C51/41
Filed: 1991-04-15
Abstract: A reinforcing agent for vulcanizable rubber compounds comprises an anhydrous metal salt of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid having a crystalline structure consisting essentially of plates and fibers. Vulcanizable rubber compounds containing such reinforcing agents have improved physical properties over rubber compounds containing conventional metal carboxylic acid salts. Methods for the preparation of such anhydrous metal salts and methods for the reinforcement of vulcanizable rubber compounds therewith are also provided.
Patent CA-2041551-A1 (CA)
Inventor: COLUMBUS RICHARD L
IPC: B01L3/00
Filed: 1991-04-30
Abstract: BLOOD COLLECTION DEVICE WITH REDUCED     SERUM DISPENSING VOLUME AND       INTEGRAL NEEDLE    ABSTRACT An integrated blood collection, separation and dispensing device is disclosed that allows a method of blood collection, serum separation and serum dispensing to occur using a single device (other than a centrifuge).  The device preferably includes a transfer chamber for receiving separated serum, that has a three-dimensional shape that is reduced in volume and is configured to avoid air entrapment.  A dispensing aperture in the transfer chamber fluidly connects the chamber with the atmosphere.  Preferably, means are provided adjacent the dispensing aperture for generating a liquid pressure change indication of the presence of liquid advancing towards the dispensing aperture.  A needle and a protective housing optionally are provided as an integral part of the device.
Patent CA-2043300-A1 (CA)
Title: Reduction of coating surface irregularities by electrostatic pressure
Inventor: DRUMMOND JAMES E
IPC: B05C11/02
Filed: 1991-05-27
Abstract: ABSTRACT      A time-efficient method for smoothing a surface 20 of an applied coating composition 22 is  disclosed herein. In particular, the present invention sets forth a technique for expediting the subsidence of coating surface irregularities Rl, R2.  The technique of the present invention is applied subsequent to the application of the coating composition 22 to an electrically conductive object 24, which results in the formation of a coating surface 20.  The technique of the present invention includes the step of generating electrically charged particles 40 in a volume of space adjacent to the coating surface 20.   The charged particles 40 cause an electric field to develop across the coating composition 22, which induces the charged particles 40 to exert pressure on the coating surface 20.
Patent CA-2045064-A1 (CA)
Title: Prosthetic joint replacement procedure using excimer laser
Inventor: GRUNDFEST WARREN S
IPC: A61B18/24
Filed: 1991-06-20
Abstract: PATENT     ABSTRACT     What is disclosed is a method of removing bone cement by use of an excimer laser.  This method is useful in prosthetic joint replacement surgery.  Ablation of the bone cement by means of the excimer laser allows for prosthetic replacement without tearing or damage to the natural tissue, bone or limb to which the prosthesis is attached.  Lasers used have an intensity level of at least 50 kilowatts and wavelengths ranging from 157-400 nm.
Patent CA-2045442-A1 (CA)
IPC: C21D9/573
Filed: 1991-06-26
Abstract: A cooling system for cooling a metal strip moving horizontally along a roller conveyor has a plurality of water boxes (4) arranged between the rollers (1,2,3) of the roller conveyor and each having upwardly directed outlet ducts (6) from which cooling water is projected onto the underside of the metal strip.  The ducts (6) are parallel to each other and uniformly spaced across the width of the strip.  To improve cooling, particularly its uniformity, the outlet ducts (6) are all shaped and oriented so as to project the cooling water with a component of motion opposite to the direction of movement of the metal strip,  and each water box (4) is shaped and located relative to the next preceding roller (1,2,3) in the direction of movement of the metal strip so that during operation the water projected from each water box also cools said next preceding roller.
Patent CA-2045689-A1 (CA)
Title: Remotely controlled installation of linings in inaccessible sewer-pipe junctions and discharge entries
Inventor: SIGEL ALWIN
IPC: F16L55/18
Filed: 1990-10-26
Abstract: ABSTRACT   The invention enables damaged joints where secondary sewer pipes join main sewers to be rapidly, inexpensively and reliably repaired without the need to expose the damaged part by excavation. An applicator (1), connected up to a pipe-repairing machine, enables an expendable lining (4) to be introduced into a secondary sewer pipe (8). The space (12) thus created between the the lining (4) and the damagedzone is then filled by injecting a suitable sealing composition into it from a high-pressure injection nozzle (13).
Patent CA-2046048-A1 (CA)
Title: Method of and apparatus for rewritable recording and erasing and rewritable recording film
Inventor: YAMADA KEIKI
IPC: B41M5/30
Filed: 1991-07-02
Abstract: In a rewritable recording apparatus using a recording medium 1 having a recording layer which exhibits a color developing property when a first kind of heat energy is applied thereto and a tone reducing property when a second kind of  heat  energy is  applied thereto, a recording-energisation control section 34 supplies an image recording signal corresponding to a desired display image to a heating device 3 to cause it to generate  heat with the first kind of heat energy.  This heating device 3 imparts the first kind of heat energy to the recording medium 1, whereby a desired display image is recorded on the recording medium 1.  An erasure control section 35 supplies an image erasing signal corresponding to a desired erasing range to the heating device 3 so as to cause it to generate heat with the second kind  of heat energy.  This heating  device 3 imparts the second kind of heat energy to the recording medium 1, whereby the image recorded on the recording medium 1 is erased.
Patent CA-2047800-A1 (CA)
Title: Fire extinguishing methods utilizing 1-chloro-1,1,2,2-tetrafluoroethane
Inventor: ROBIN MARK L
IPC: A62D1/00
Filed: 1991-07-24
Abstract: ABSTRACT   1-Chloro-1,1,2,2-tetrafluoroethane is a non-ozone-depleting fire extinguishing agent used alone or in blends with other compounds in total flooding and portable systems.
Patent CA-2048145-A1 (CA)
Inventor: TAKEDA KEIKO
IPC: H01S3/067
Filed: 1991-07-30
Abstract: An optical fiber amplifier in which light generated within an Er doped optical fiber by spontaneous emission is eliminated or suppressed.  By inserting a wavelength demultiplexer in the Er doped optical fiber, the light generated within the optical fiber by spontaneous emission can be effectively eliminated.  As an alternative, the Er doped optical fiber is arranged in a coil form with a predetermined radius of curvature to thereby effectively eliminate light due to spontaneous emission on the longer wavelength side than the signal light.  Further, by doping the center portion of the core of an optical fiber with aluminum and the whole body of the core uniformly with erbium, it is made possible to suppress the generation of light by spontaneous emission without causing an adverse effect on the amplification performance of the signal light.
Patent CA-2049411-A1 (CA)
Title: An improved lin flue gas sox/nox removal process and its by-product utilization
Inventor: LIN PING-WHA
IPC: B01D53/50
Filed: 1991-08-16
Abstract: An improved process for effecting the efficient desulfurization of gases containing sulfur oxides, comprising the steps of: transmitting flue gas containing sulfur oxides gases through ductwork means, subjecting the flue gas to one of increasing the temperature of the flue gas through gaseous interaction and subjecting the flue gas to thermal radiator means, in order to effect a rapid and positive time rate of temperature change so that sulfur dioxide in said flue gas is converted to sulfur trioxide, passing the sulfur trioxide rich flue gas to a reactor and providing a calcium containing reactant to the reactor, and continuously emitting a desulfurized exit gas from the reactor and transmitting the desulfurized exit gas to an exit, The process is a completely dry process which provides advantages over known processes including improved sulfur oxide removal in a exothermic reaction.
Patent CA-2054021-A1 (CA)
Title: Automobile windshield molding and the method of producing the same
Inventor: YADA YUKIHIKO
IPC: B29C48/12
Filed: 1991-10-23
Abstract: A windshield molding is installed in the space between a windshield and a periphery of a window opening of a vehicle body panel. The windshield molding comprises a pair of extruded side molding parts, a pair of extruded corner molding parts, and an extruded upper molding part integral with and extending between the side and corner molding parts. Each of side molding parts associated with each side edge of the wind-shield is larger in thickness compared to the upper and corner molding parts, where a water drain channel is formed.
Patent CA-2055964-A1 (CA)
Title: Cooling system for a water cooled internal combustion engine for vehicle having an air conditioning apparatus
Inventor: SUSA SUMIO
IPC: B60K11/08
Filed: 1991-11-21
Abstract: A vehicle provided with an internal combustion engine and an air conditioning system for a vehicle passenger cabin. A condenser of the air conditioning system is arranged in front of a radiator of the engine in an engine compartment of the engine. A duct is arranged between the condenser and the radiator for preventing the air passing the radiator from being returned forward P. A first damper, which is normally closed is provided in the duct, but is opened when the engine temperature is high to provide a flow of air, bypassing the condenser, directly into the radiator.
Patent CA-2056393-A1 (CA)
Title: Process and device for air texturing
Inventor: WANNAGAT HORST
IPC: D02G1/16
Filed: 1990-06-07
Abstract: In a process for air texturing yarns (1, 2, 3) made from glass fibres, the glass fibres are fed separately to a first delivery device (4) and then pass through a texturing nozzle (6) where a false twist is imparted to them, at least in the region between the inlet and outlet of the texturing nozzle. A device for implementing the process has a false-twisting device (9) between the first delivery device (4) and the second delivery device (10). The deflecting body of the false-twisting device (9) is a twisting pin (13) rotatably mounted about its own axis, which may be inclined to the direction of transport of the yarns (1, 2, 3).
Patent CA-2057413-A1 (CA)
Inventor: STANISZEWSKI GARY P
IPC: A44B11/10
Filed: 1991-12-11
Abstract: A latch plate assembly (10) comprising: a plate (12) having a tongue (14) formed at one end (16) thereof, a back portion (18) opposite the tongue (14) and a first opening formed in the back portion (18); a web guide (40), is positioned about the back portion (18) which includes an elevated member (44) spaced above the back portion (18) and a lower member (42) positioned below the back portion (18). The members (42, 44) cooperate to define a web guide slot (46) which laterally extends relative to the plate (12) to receive the seat belt webbing (36) The elevated member (44), includes a sloped surface (48) extending away from the first opening (34) and a first engagement surface (50) extending laterally positioned across a rear side of first opening (34).      The latch plate assembly further includes: a cover (70) slidingly received about plate (12) relative to the web guide (40). The cover comprising first and second side members (72a, 72b), a top crossmember (74) and a bottom crossmember (76), each of the first and second side members (72a, 72b) including a slot (78a, 78b) through which is received a corresponding side (32a, 32b). The top crossmember (74) includes a rib (82) which extends into the first opening (34) so as to engage a front side of the first opening (34) when the cover (70) is slid forward on the plate (12) and to compressively load the seat belt webbing (36) against the first engagement surface (50) when the cover (70) is moved rearwardly.
Patent CA-2057683-A1 (CA)
Title: Articulating device
Inventor: KATAOKA HIROSHI
IPC: A61C9/00
Filed: 1991-12-18
Abstract: ABSTRACT    An  articulating  device for the purpose of  inspecting  the occlusion in dental treatment. The device consists of at least  a single  base sheet one of the surfaces of which is coated with  a dark  waxy pigment and other is coated with a pressure  sensitive color developing agent.
Patent CA-2059223-A1 (CA)
Title: Separation of a mixture of water, methylethyl ketone, and ethylene glycol mono-n-butyl ether into a) water and b) methylethyl ketone containing ethylene glycol mono-n-buthyl ether
Inventor: KRUG JOSEPH
IPC: C07C49/10
Filed: 1992-01-13
Abstract: Separation of a mixture of water, methylethyl ketone, and ethylene glycol mono-n-butyl ether into a) water and b) methylethyl ketone containing ethylene glycol mono-n-butyl ether Abstract of the disclosure:   The invention relates to a process for the separation of a mixture of water, methylethyl ketone, and ethylene glycol mono-n-butyl ether into a) water and b) methylethyl ketone containing ethylene glycol mono-n-butyl ether, wherein the separation is carried out by means of pervaporation.
Patent CA-2063792-A1 (CA)
Inventor: PATNAIK PRABODH K
IPC: C07C51/41
Filed: 1990-07-23
Abstract: An  improved  process  for  making  a  bismuth carboxylate is disclosed which generally comprises  (A) heating  an  anhydrous  reaction  mixture  comprising  a carboxylic acid or anhydride, bismuth metal, and hydrazine to  a  temperature  of  from  about  80°C  up  to,  but  not including,  the  temperature  of  decomposition  of  any reactant, hydrazine, or the desired bismuth carboxylate, (B) bubbling an oxygen-containing gas through the reaction mixture during (A), and (C) removing water formed during (B)  from  the  reaction  mixture.    Bismuth  carboxylate compositions are also disclosed which contain at least 70 equivalents of a bismuth carboxylate derived from at least one carboxylic acid or anhydride having from about 6 to about 20 carbon atoms, the composition having a viscosity of not more than 1000 centipoise at 25°C.
Patent CA-2064823-A1 (CA)
Title: Sequentially injected multi-component injection molding
Inventor: SORENSEN JENS O
IPC: B29C45/32
Filed: 1990-08-13
Abstract: A highly efficient and highly controllable method and an apparatus for core-back injection molding of multi-component plastic products. Core-back injection molding makes possible the injection of a first plastic material into a mold cavity followed by retracting a barrier means (22, 26) in order to enable injection of a second plastic material without separating any mold halves. The present invention enables very efficient injection molding because both injection units may be operated at the same time, and the present invention enables very controlled injection because it is possible to inject only one half of the cavities by a specific injection unit at the same time, or even only one quarter of the cavities by a specific injection unit at the same time. The injection molding apparatus includes a first injection unit, a second injection unit, a right adjustable mold cavity (20) with a first moveable barring means (22), a left adjustable meld cavity (24) with a second moveable barring means (26), and a common standard clamping unit (28).
Patent CA-2065995-A1 (CA)
Title: Incinerator improvements
Inventor: BASIC JOHN N SR
IPC: F23G/
Filed: 1992-04-14
Abstract: TITLE:     INCINERATOR IMPROVEMENTS INVENTOR:  JOHN N. BASIC, SR.                         ABSTRACT Improvements for an incinerator system including double reburn tunnels, an excitor within a reburn tunnel, a choker for closing off part of a reburn tunnel, a grate near the incinerator's inlet to permit the drying and initial combustion of refuse, an ash scoop which remains out of the water during most of its operation.  The use of dual reburn tunnels, along with a damper that permits the closure of at least one of them, permits the efficient and environmentally acceptable utilization of the main incinerator chamber even with minimal refuse contained there.  With less refuse, only one reburn unit operates; it will still have sufficient heat and throughout to maintain, with minimal auxiliary fuel, the temperatures needed for complete combustion.  An excitor, or solid stationary object placed within the reburn tunnel, permits the retention and reflection of the heat generated by the burning to assure complete combustion of all hydrocarbons within the reburn unit.  Additionally, the air utilized in the reburn unit may enter through the excitor for the efficient distribution and concomitant combustion.     A damper closing off a portion of a reburn unit permits its efficient operation even when the main combustion chamber contains very little refuse.  Additionally, it permits the incinerator to achieve operational temperatures prior to the introduction of refuse by using only a minimal amount of auxiliary fuel. A grate placed at the main combustion chamber's entrance and above the incinerator's floor permits the retention of newly introduced refuse for a brief period of time. During this time, the refuse may dry, loose its volatile hydrocarbons, and then drop through to the main chamber's floor and undergo its usual combustion. For very high Btu waste, the grate permits the initial, very hot burning to occur off of the incinerator floor to prevent slagging. A fluid may pass through the grate to keep it from overheating. In particular, air may enter the main incinerator chamber through nozzles placed on the grate to both cool the grate and support the combustion. The ash scoop has a retaining and a nonretaining configuration. It moves along a track downward into the pit while poised in its nonretaining configuration. Once in the pit, it moves to its retaining position to grab debris within the pit. It then moves back out of the pit along the track until it reverts to its nonretaining configuration to dump the ashes dragged out of the pit.