baber/WOPTO huggingface dataset:
Patent CA-2030841-A1 (CA)
Title: Feedback system for a sub-woofer loudspeaker
Inventor: ERATH LOUIS W
IPC: H04R3/00
Filed: 1990-11-26
Abstract: FEEDBACK SYSTEM FOR A SUB-WOOFER LOUDSPEAKER                   ABSTRACT OF THE DISCLOSURE          The  present  invention  provides  an  apparatus  for enhancing the low frequency response of a loudspeaker.  At low   frequencies   the   mechanical   and   electrical inefficiencies of loudspeakers limit the intensity of the sound output by the loudspeakers.   Previous attempts to correct the inefficiencies have been hampered by the non-ideal  circuit  elements used  in  conventional  feedback circuits.   To enhance the low frequency response of a loudspeaker there is provided an apparatus which includes a feedback circuit which is operably connected to an audio amplifier and which is tuned to substantially match the impedance  of  the  loudspeaker  within  a  predetermined frequency  range.    The  apparatus  further  includes  a transformer  having  a  primary winding  and  a  secondary winding.  The primary winding is adapted to connect to the drive coil of a loudspeaker, and the secondary winding is connected to the feedback circuit.  The feedback circuit delivers a feedback signal which alters the audio input signal in response to a voltage induced on the secondary winding by the primary winding, and compensates for the low frequency inefficiencies of the loudspeaker.
Patent CA-2031003-A1 (CA)
Title: Slurry polymerization of crosslinked maleic anhydride-alkyl vinyl ether copolymers in a solvent system comprising a carboxylic acid ester and a saturated hydrocarbon
Inventor: TAZI MOHAMMED
IPC: C08F20/02
Filed: 1990-11-28
Abstract: SLURRY POLYMERIZATION OF CROSSLINKED MALEIC ANHYDRIDE - ALKYL VINYL ETHER COPOLYMERS IN A SOLVENT SYSTEM COMPRISING A CARBOXYLIC ACID       ESTER AND A SATURED HYDROCARBON                         ABSTRACT          A polymerization process is described herein for making crosslinked copolymers of maleic anhydride and an alkyl vinyl ether characterized in that polymerization is carried out in a solvent system which is a mixture of a carboxylic acid ester and a saturated hydrocarbon, preferably, a mixture of ethyl acetate and cyclohexane in the weight ratio of about 35 to 55% ethyl acetate and 45 to 65% cyclohexane.
Patent CA-2032117-A1 (CA)
Inventor: RICHARDS VON L
IPC: H01M8/02
Filed: 1990-12-12
Abstract: ABSTRACT OF THE DISCLOSURE A combustible  polymer film, useful for applica-tion of an interconnection on  an  electrode  is  made by: (1) providing doped LaCrO3 particles; (2) dispersing doped LaCrO3 particles  in a  solvent, to  provide a dispersion; (3) screening  the dispersion  to provide particles in the range  of  from  30  micrometers  to  80  micrometers; (4) admixing  a  fugitive  polymer  with  the  particles;  (5) casting the dispersion to provide a  film; (6)  drying the film; and  (7) stripping  the film.   The film can then be applied to a porous, preheated electrode  top surface, and then  electrochemical  vapor  depositing  a dense skeletal LaCrO3 structure,  between and  around  the  doped LaCrO3 particles.    Additional  solid oxide electrolyte and fuel electrode layers can then be added to provide a fuel cell.
Patent CA-2033606-A1 (CA)
Title: Plastic water box for a thermoelectric air conditioner
Inventor: BLANKENSHIP WILLIAM P
IPC: F24F1/00
Filed: 1991-01-04
Abstract: 55, 511 ABSTRACT OF THE DISCLOSURE A thermoelectric  air conditioner having a fiber reinforced plastic water box made of two identical halves, each of  which has a serpentine groove with a plurality of openings that receive a first heat  transfer plate  and an array of  semiconductors of both P and N type and a second heat transfer plate which  is finned,  the  heat transfer plates bridge  the semiconductors  to form a single series for the while assembly.
Patent CA-2034326-A1 (CA)
Title: Auxiliary refrigerated air system employing input air from turnbine engine compressor after bypassing and conditioning within auxiliary system
Inventor: RENNINGER STANTON W
IPC: F02C6/04
Filed: 1991-01-17
Abstract: AUXILIARY REFRIGERATED AIR SYSTEM EMPLOYING INPUT AIR FROM TURBINE ENGINE COMPRESSOR AFTER BYPASSING AND CONDITIONING WITHIN AUXILIARY SYSTEM        ABSTRACT OF THE DISCLOSURE     An  auxiliary  refrigerated  air  system  includes first and second tandemly-arranged auxiliary turbine components,  air  dividing and mixing valves,  an air bypass loop,  an auxiliary air compressor, and a heat exchanger.  The air dividing valve is connectable to a suitable input air source for receiving and dividing input air into first and second portions. The air mixing valve is connected in communication between an exit side of the first auxiliary turbine component and an  entrance  side  of  the  second  auxiliary  turbine component for mixing the first portion of the input air with  energy-depleted  air  exiting  from  the  first auxiliary turbine component.   The air bypass loop is connected in communication between the dividing and mixing valves for bypassing to the mixing valve the first  portion  of  the  input  air  diverted  from  the dividing valve.  The auxiliary compressor is drivingly connected  to  the  auxiliary  turbine  components, connected in communication with the dividing valve, and operable for receiving the second portion of the input air diverted  from the  dividing valve and producing compressed air upon operation of the first and second auxiliary turbine components.  The heat exchanger uses the turbine engine fuel to cool compressed air routed from the auxiliary compressor to the entrance side of the first auxiliary turbine component.
Patent CA-2034345-A1 (CA)
Inventor: MEINERS DAVID J
IPC: H01H73/00
Filed: 1991-01-17
Abstract: A rotatable trip test assembly unit for molded case circuit breakers consists of a unitary plastic part that cooperates with the internal structure of the circuit breaker cover to provide return spring bias to the trip test button. The trip test assembly unit rotates about a pivot and strikes the circuit breaker trip bar to thereby articulate the circuit breaker operating mechanism and separate the circuit breaker contacts. The interaction between a cam-follower on the assembly unit and a cam-shaped piece within the circuit breaker cover automatically returns the trip test button to its initial position upon release.
Patent CA-2034422-A1 (CA)
Inventor: PETISCE JAMES R
IPC: C03C25/10
Filed: 1991-01-17
Abstract: A drawn optical fiber (21) is provided with inner and outer layers (42,44) of coating material to protect the optical fiber during handling and use. The coating materials are such that they are characterized by being curable upon exposure to different portions of the light spectrum. In a preferred embodiment, the coating material of the inner layer includes a photoinitiator which absorbs light in the visible portion of the light spectrum whereas the outer coating material of the outer layer includes a photoinitiator which absorbs light in the ultraviolet light portion of the light spectrum.
Patent CA-2037345-A1 (CA)
Title: Endothelial cell-monocyte adhesion molecule
Inventor: BERLINER JUDITH A
IPC: C07K14/705
Filed: 1991-02-28
Abstract: 39.                  PATENT     ABSTRACT   Receptor isolated and substantially purified from endothelial cells which is specific for a ligand present on monocytes.
Patent CA-2038349-A1 (CA)
Inventor: DAVIS JAMES O
IPC: H01B7/08
Filed: 1991-03-15
Abstract: A multiconductor and support has a plurality of elongate  conductive  elements  each  with  a  pair  of termini.    An   elongate   support   means,   carrying adjacent conductive elements, has openings located at the distal and the proximal ends for alignment with conductive elements  extending thereover leaving the distal termini thereof  unsupported.   Heat  activated adhesive on the  support means bonds the conductive elements.  Each of the conductive elements are spaced from the  other  conductive elements and have center lines which are parallel.  A machine for assembly of a multiconductor and support means has a plurality of spools supplying conductive elements and a plurality of guides each positioned to receive and align the supplied conductive  elements.   The  guides  position the conductive elements spaced from and parallel to each other.  A supply of support means moves support means  intermittently but  synchronously between the conductive elements  and a flat  surface.   A heated platten compresses and bonds the conductive elements and the support means into an pair.   A method for assembling  a  multiconductor  and  support  includes intermittently moving several conductive elements in parallel spaced relation and intermittently moving a support means in a plane parallel to the conductive elements.   Pressing the parallel conductive elements and the support means together forms the pair.
Patent CA-2038479-A1 (CA)
Title: A device for detecting loss of refrigerant in an airconditioner
Inventor: DUNCAN DONALD
IPC: G08B1/08
Filed: 1991-03-18
Abstract: A B S T R A C T      An  apparatus  for  detecting  a  deficiency  in refrigerant in a refrigeration system is disclosed.   The apparatus  has  an  extension  arm  for  mounting  onto  a refrigerant  line  downstream of  the expansion valve.  The extension arm is cantilevered for amplifying the vibrations of the refrigerant system when deficient in refrigerant.   Mounted  on  the  extension  arm  is  an  accelerometer  for detecting this vibration and sending an electrical signal upon  detection  thereof.    Electrically  connected  to  the accelerometer is a signalling device for providing a warning or alarm signal of a deficient refrigerant situation.
Patent CA-2038500-A1 (CA)
Title: Composites of methylene bridge-free phenolic resins
Inventor: BRANDON RICHARD L
IPC: C08L65/00
Filed: 1991-03-18
Abstract: Docket No. 40004-1092 ABSTRACT       A composite which comprises a reinforcing agent and a cured phenolic resin, the phenolic resin prior to curing being represented by the formula (I)                 (I) where R is hydrogen, cyano, or 2,3-epoxyprop-1-yl; y may be the same or different and is selected from the group consisting of a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, a phenylalkyl group, a phenyl group, an allyl group; and n is greater than or equal to 1.
Patent CA-2038823-A1 (CA)
Title: In-furnace slag level measuring method and apparatus therefor
Inventor: NAGAMUNE AKIO
IPC: G01S13/06
Filed: 1991-03-21
Abstract: ABSTRACT    Disclosed  is  a  in-furnace  slag  level  measuring method for measuring a slag level in a convertor and an apparatus therefor.  A sublance  and  an antenna of  a microwaver  radar are arranged exchangeable therebetween so that the sublance and the antenna are alternatively inserted in to the convertor from about the convertor.          The antenna   is  inserted  into  the convertor  in first and  middle  stage  of  the  refining   operation  of  the convertor  to  thereby measure  the  slag  level,  and the sublance   is inserted  into  the  convertor  to  thereby perform various  measurement.
Patent CA-2039117-A1 (CA)
Title: Adjustable cable end fitting
Inventor: DICKIRSON GENE D
IPC: F16C1/26
Filed: 1991-03-26
Abstract: ABSTRACT OF THE DISCLOSURE          The present invention relates to an apparatus comprising a cable, a sheath disposed around a portion of the cable, an inner member attached to the sheath, an outer member disposed around at least a portion of the inner member. The inner member and the outer member are formed to allow stepwise longitudinal adjustment of the inner and the outer members and to allow complete rotational movement between the inner and the outer members.
Patent CA-2040777-A1 (CA)
Title: Method and device for limitation of the width of coating of paper
Inventor: RANTANEN RAUNO
IPC: B05C11/02
Filed: 1991-04-18
Abstract: The invention concerns a device and method for limiting of the width of coating in coating of paper or board. The coating agent is spread onto a moving base to be coated by means of a coating device provided with a grooved coating bar. The coating agent is spread substantially only over the width of the web and any coating agent extending substantially beyond the web width is scraped off the base to be coated with the aid of smooth end areas fitted at both ends of the coating bar. The invention is also related to a device fort carrying out the method.
Patent CA-2040788-A1 (CA)
Title: Cartridge for label
Inventor: YAMAGUCHI YASUHIRO
IPC: B65C9/18
Filed: 1991-04-18
Abstract: ABSTRACT OF THE DISCLOSURE    A cartridge for label includes a pair of holding reels for holding a label-continued sheet including a release base paper to which a label is releasably adhered.  A roller press against the label-continued sheet taken out from the holding reels.  The release base paper which has been fed is folded by a folding shaft provided in the vicinity of the roller.  Thus, the label is released from the release base paper.  A guide shaft, provided in the vicinity of said folding shaft, holds the release base paper.  The cartridge for label includes a projection bent to be engaged by a cylindrical portion.
Patent CA-2043849-A1 (CA)
Title: Mobile electric flash-butt welding unit
Inventor: THEURER JOSEF
IPC: E01B29/46
Filed: 1991-06-04
Abstract: MOBILE ELECTRIC FLASH-BUTT WELDING UNIT     Abstract of the Disclosure A mobile electric flash-butt welding unit for welding together adjacent ends of track rail sections comprises a pair of welding heads displaceable in a longitudinal direction towards each other, each welding head comprising two tong-like parts pivotal towards each other and carrying clamping electrodes for engaging the sides of a respective one of the rail section ends.  Actuating cylinders extend in the longitudinal direction and are connected to each welding head for pressing the welding heads in the longitudinal direction towards each other, and clamps are connected to each welding head and are spaced in the longitudinal direction from the actuating cylinders connected thereto, each clamp comprising jaws for gripping the sides of the respective rail section end therebetween.
Patent CA-2046021-A1 (CA)
Title: Reinforcement for wall systems
Inventor: PORTER JOHN F
IPC: E04F13/04
Filed: 1991-07-02
Abstract: A method of making an open grid weft inserted warp knit reinforcement fabric having a soft hand for reinforcing wall systems is disclosed. First and second sets of substantially parallel ends are arranged in an overlying relation at a substantial angle to one another. The yarns of the first and second sets preferably have a linear density between 100 and 2000 grams per thousand meters and are arranged at an average of 3 to 10 ends per inch. The first and second sets of yarns are affixed together by weft insertion warp knitting with tie yarn to form the open grid fabric having a warp direction and weft direction. A polymeric coating is applied to the yarns at a level of 15 to 150 parts dry weight of resin to 100 parts by weight of the fabric. A method for reinforcing a wall system and a wall segment product utilizing the novel fabric of the present invention are also disclosed.
Patent CA-2046682-A1 (CA)
Title: High voltage insulator
Inventor: CHAFFEE ROGER G
IPC: H01B3/46
Filed: 1991-07-10
Abstract: HIGH VOLTAGE INSULATOR                             ABSTRACT     A process for making a high voltage insulator extrudes a silicone rubber high voltage insulator stock into a parallelogram shaped strip having the minor surfaces at an angle of less than 45°C. to the major surfaces. The outer major surface can have a shed formed on it.  The strip is spirally wound around a core, having its outer surface coated with a primer, so that adjacent surfaces of the strip overlap each other to give a continuous, homogeneous, uniformly thick covering over the core.  A pressure roll is applied to the cover at the point where adjacent turns overlap to slightly work the surfaces together.  When the core is completely covered, it is placed into an oven to vulcanize the silicone high voltage insulation stock.
Patent CA-2046919-A1 (CA)
Title: Oligonucleotide primer pairs for sequence independent gene amplification and methods which employ them
Inventor: PASEK MARK P
IPC: C12Q1/68
Filed: 1990-02-14
Abstract: The present invention relates to methods for amplifying isolated nucleic acid sequences, particularly DNA sequences, whose nucleotide sequences are unknown. The invention also relates to oligonucleotide primer pairs that may be employed in the amplification methods of the present invention.
Patent CA-2047180-A1 (CA)
Title: Methods and apparatus for efficient resource allocation for error and exception handling in convergent division
Inventor: LINDSLEY BRETT L
IPC: G06F7/52
Filed: 1990-12-17
Abstract: A method which utilizes a single preprocessing step (214, 216) to modify a divisor (D) in floating point division and to enable an exception correction and error checking operation (104, 108) to run concurrently with a division operation. The invention permits achievement of the correct predetermined result if an exception is present or the quotient if no exception occurs.
Patent CA-2050624-A1 (CA)
Inventor: FISSENKO VLADIMIR V
IPC: B01F23/00
Filed: 1991-09-04
Abstract: A two-phase mixture of at least two fluids which is supp-lied with subsonic velocity through associated feed lines (4, 3) is accelerated to sound velocity by means of a nozzle (2). Upon the exit from the narrowest cross-sectio-nal area (6) of the nozzle (2) the two-phase mixture is expanded in an expansion chamber (10) to supersonic veloci-ty. The two-phase mixture expanded to supersonic velocity is thereafter brought to ambient pressure substantially as a one-phase mixture after flowing off through a diffuser passage (9) by means of a shock wave built up in an outlet channel (8). The outlet channel (8) has a constant cross-sectional area the hydraulic diameter of which is as great as the hydraulic diameter of the narrowest cross-sectional area (6) of the nozzle (2) or amounts to up to the three-fold of this hydraulic diameter. An outlet (11) provided with a relief valve (22) is connected to the expansion chamber (10). After termination of a starting operation a continuous operation appears with the shock wave being stably maintained in axial direction in the outlet channel. In this manner a good mixture of the fluids can be obtained because of the angular flow and the relative velocities of the fluids, by condensation during the transition in the two-phase condition as well as by boiling and vaporization in the range of the supersonic flow and following thereto in the shock wave because of its "shattering effect".
Patent CA-2051258-A1 (CA)
Title: Flexible drainage trap
Inventor: BRESNAHAN JEREMIAH J
IPC: F16L43/00
Filed: 1991-09-12
Abstract: Abstract A drainage trap with a trap portion is described for use with drain pipes from sinks or other fixtures that fits pipe of different diameters, the drain pipes need not be in perfect alignment.   The drainage trap can be easily attached and detached at its upper end to a drain outlet and at its lower end to a discharge pipe, is molded of a self-supporting, flexible material which allows the drainage trap to be manually manipulated.   The drainage trap has an S-shaped configuration which enables the trap portion to be movable in a vertical direction towards the drain outlet and a horizontal direction towards the discharge pipe for the purpose of draining the trap portion.
Patent CA-2051954-A1 (CA)
IPC: B60K17/16
Filed: 1991-09-20
Abstract: A composite protective shield installed with a vehicle for protecting, occupants of the vehicle, and/or a destructible or volatile apparatus affected by the elements, the composite shield comprising mounting means to mount the shield adjacent the occupant and/or destructible or volatile apparatus, the shield being formed from a resilient matrix providing the form thereof, such as sheet moulding compound, the resilient matrix having predetermined heat distortion properties and abrasive resistance properties to provide maximum shielding for the particular use, the resilient matrix of the shield being provided with a heat management system adjacent the occupants of the vehicle and or the destructible or volatile apparatus, the heat management system to dissipate the heat on the side of the shield to which heat may be applied thus maintaining the occupant and or the destructible or volatile apparatus harmless and safe.
Patent CA-2053457-A1 (CA)
Inventor: LAURENCEAU SERGE
IPC: F23D14/58
Filed: 1991-10-15
Abstract: ABRÉGÉ DESCRIPTIF Pour la chauffe d'une enceinte thermique, on génère dans un brûleur comportant une pluralité d'injecteurs à partir d'un mélange oxycombustible, des flammes s'étendant dans des directions différentes et présentant une puissance et/ou un pouvoir oxydant/réducteur différents. Application notamment à la chauffe de fours et poches métallurgiques ou aux fours de verrerie.
Patent CA-2055552-A1 (CA)
Title: Hazardous waste incinerator and control system
Inventor: MORHARD ROBERT C
IPC: F23G7/00
Filed: 1991-11-14
Abstract: HAZARDOUS WASTE INCINERATOR AND CONTROL SYSTEM            ABSTRACT OF THE DISCLOSURE    A hazardous waste incinerator (100) includes a rotary kiln (120) with a helical flight (250) within.  The kiln (120) is fed hazardous waste by either a continuous feed system (164) or a positive feed system (162). The kiln (120) is comprised of six retort sections (202, 202, 204, 206, 208, 210). The combusted waste is separated into ash and recoverable metals.  The air flow is counter to the flow of waste through the kiln (120), with exhaust gases vented from the kiln entrance.  Fugitive emissions are also contained by shrouds (164, 166) and containment building (160).  These exhaust gases pass through the secondary combustor (130) to ensure destruction of any principle organic hazardous constituents.  The exhaust gases are then treated in a spray dryer (140) to cool it and neutralize any acidic components.  A baghouse (150) then removes any remaining particulate matter before the exhaust exits the stack (156).  The control system includes a program-controlled processor unit (400) connected by an optical/electrical interface (402) to an optical data highway loop (404).  All parametric sensors of each subsystem is connected to the data loop (404).
Patent CA-2059080-A1 (CA)
Title: Electrical contact socket
Inventor: PELOZA KIRK B
IPC: H01R13/115
Filed: 1992-01-09
Abstract: ABSTRACT          An electrical contact socket is provided with an open end for receiving a pin to form an electrical connection therewith.          The socket has walls provided With at least a pair of inwardly projecting resilient tongues extending axially of the socket and having free ends directed away from the open pin-receiving end of the socket.  The free ends of the tongues are formed with V-shaped cut-outs for engaging the pin.  The included angle of one of the V-shaped cut-outs is different from the included angle of the other V-shaped cut-out to cause binding between the contact socket and the pin in response to relative rotation therebetween.
Patent CA-2061671-A1 (CA)
Title: Process for detackifying transferred toned images
Inventor: HELD ROBERT P
IPC: G03G9/087
Filed: 1992-02-21
Abstract: TITLE    PROCESS FOR DETACKIFYING TRANSFERRED TONED IMAGES        ABSTRACT    A process for transferring toned images to an image receptor at low temperatures with improved back transfer characteristics.
Patent CA-2064673-A1 (CA)
Title: Endoscopic medical device
Inventor: KINDBERG RICHARD C
IPC: A61B17/50
Filed: 1992-04-01
Abstract: A medical device for enclosing an internal bodily organ or tissue during surgery comprising a filamentary strand with noose and free end portions, the free end portion enclosed within a cannula; a surgical bag with an opening, the bag attached to the noose portion at the open end of the bag; and a means for pulling the free end portion proximally to reduce the diameter of the noose portion so as to close the open end of the surgical bag.