baber/WOPTO huggingface dataset:
Patent CA-1270036-C (CA)
Title: Motor vehicle headlight
Inventor: LEVIN ROBERT E
IPC: F21S41/33
Filed: 1987-02-05
Granted: 1990-06-05
Abstract: TITLE: MOTOR VEHICLE HEADLIGHT ABSTRACT A motor vehicle headlight including a parabolic reflector a cover secured to the reflector and a lighting capsule located within the reflector. The capsule includes an envelope having A coiled filament located therein and including a substantially cylindrical configuration. Optimum light output is attained by providing the reflector with a short focal length (0.2 inch to about 0.5 inch) and by utilization of a coiled filament structure having a length to diameter ratio of less than about 2:1. The result is a headlight having an overall vertical height of only about two inches and a corresponding frontal area of extremely small size (between 3.0 and 7.5 square inches).
Patent CA-1276331-C (CA)
Title: Process for producing novel block alkylene polycarbonate copolymers
Inventor: SANTANGELO JOSEPH G
IPC: C08G64/18
Filed: 1987-04-01
Granted: 1990-11-13
Abstract: ABSTRACT    The present invention is a novel class of block copolymers and a process of making the same.  An alkylene oxide is reacted with CO2 in an organic solvent in the presence of an organometallic catalyst to form a polyalkylene carbonate.  A second alkylene oxide is subsequently added without the addition of catalyst.  The resulting product is a block copolymer comprising distinct, covalently linked, alkylene carbonate blocks.  Such products are used in lost foam applications, e.g., evaporative pattern castings.
Patent CA-1297087-C (CA)
Inventor: BURGHARDT FRANZ
IPC: B65H81/08
Filed: 1987-04-21
Granted: 1992-03-10
Abstract: ABSTRACT OF THE DISCLOSURE    A method is provided herein for depositing an interlining for reducing friction and noise on a pitched cable.  The interlining comprises a thermoplastic flocked filament.  The method comprises the first step of providing the pitched cable comprising a wire rope with a helical wire wound thereabout and fixed thereto, having a constant, thread-like pitch defining a plurality of helixes.  The next step involves heating the pitched cable to a temperature beyond the melting point of the thermoplastic filament.  The final step involves winding the thermoplastic flocked filament on the heated pitched cable between the threads of the helixes and fusing the filament to the cable.
Patent CA-1294948-C (CA)
Title: Platinum-alkenylsiloxane complex catalyst composition
Inventor: SARUYAMA TOSHIO
IPC: C08K3/36
Filed: 1987-05-26
Granted: 1992-01-28
Abstract: PLATINUM-ALKENYSILOXANE COMPLEX CATALYST COMPOSITION          Abstract The storage stability of catalyst compositions comprising an platinum-alkenylsiloxane complex, an organo-polysiloxane, and a microparticulate hydrophilic silica is substantially increased when the PKa of a dispersion containing specified amounts of said complex and said silica in a non-polar solvent is between 2.0 and 9.0, inclusive.
Patent CA-1304754-C (CA)
Title: Process for purifying dinitroaniline herbicides
Inventor: PIKARSKI MICHAEL
IPC: C07C209/84
Filed: 1987-06-05
Granted: 1992-07-07
Abstract: A B S T R A C T     A one-step process for the preparation of nitrosamine-free dinitroaniline herbicides which involves contacting the crude dinitroaniline herbicide in the liquid state, after removal of excess amine, with an effective quantity of a hydrobromide salt of a p-amino benzoate ester, optionally in the presence of such an ester,  passing a gaseous stream of air therethrough or applying a reduced pressure so as to essentially remove water present, resulting in an essentially nitrosamine-free product.
Patent CA-1277900-C (CA)
Title: Alkyl glycosides as potentiating agents in antiseptic compositions
Inventor: LEHMANN RUDOLF
IPC: A01N43/16
Filed: 1987-06-09
Granted: 1990-12-18
Abstract: ABSTRACT OF THE DISCLOSURE     Alkyl glycosides in admixture with bactericidally active alcohols or carboxylic acids in, e.g. aqueous treatment solutions, for poten-tiating the microbicidal effect thereof.
Patent CA-1293857-C (CA)
Inventor: DAVIS PHILLIP K
IPC: C01F7/50
Filed: 1987-07-07
Granted: 1992-01-07
Abstract: METHOD OF TREATING FLUORIDE CONTAMINATED WASTES       Abstract of the Disclosure A process for treating solid substantially non-volatile wastes contaminated with a heat sensitive contaminant is disclosed.  The wastes are heated to form a liquid slag.  The liquid slag is held at elevated temperature until at least a portion of the contaminating components have either decomposed or evolved from the melt as a gas.  The slag is subjected to cooling and the contaminating compounds are bound or encapsulated into a solid glassy slag.  The process is particularly suitable for handling fluoride and cyanide contaminated aluminum smelting wastes such as spent potliner material.  It is advantageous to add silica to such wastes.  The residue from the slagging reaction is a glassy solid sodium metal silicate matrix such that the fluoride residues remaining in the wastes are encapsulated, The amount of silicate blended with the feed material is selected to substantially tie up all of the sodium remaining in the residue after slag smelting and is typically 7.5 to 50 weight percent of the feed.  The resulting solid, glassy slag material produced is not hazardous to health and is essentially inert to the environment.
Patent CA-1285161-C (CA)
Inventor: SEKIGUCHI HIROSHI
IPC: G03B21/625
Filed: 1987-07-14
Granted: 1991-06-25
Abstract: Abstract of the Disclosure A  screen  formed  with  a  plurality  of  lenticular lenses on both the surfaces  is provided.   There are formed on the incident surface a plurality of sets of incident side main lenticular lenses and incident side auxiliary lenticular lenses, each set being arranged on both the sides of the main lenticular lens.   Further, there are formed on the emission surface a plurality of emission side main lenticular lenses and a plurality of pairs of emission side auxiliary lenticular lenses, each pair  being  arranged  on  both  the  sides  of  the  main lenticular lens.  The greater part of an incident light is incident from the incident side main lenticular lens and is emitted from the emission side main lenticular lens at a predetermined diffusion angle. The remaining incident  light  is  incident  from  the  incident  side auxiliary  lenticular  lenses  and  is  emitted  from  the emission side auxiliary lenticular lenses at a different angle.
Patent CA-1330733-C (CA)
Inventor: VERVLOET LUDOVICUS H
IPC: C08J7/056
Filed: 1987-12-22
Granted: 1994-07-19
Abstract: ABSTRACT            IMAGE-RECEIVING MATERIAL FOR USE IN DIFFUSION TRANSFER REVERSAL     Image-receiving material for use in diffusion transfer reversal processing comprising a polyvinyl chloride resin support coated with a hydrophilic waterpermeable layer comprising a proteinaceous colloid and an ionogenic polyester-polyurethane wherein isocyanate groups still present in its structure have reacted with an ionogenic compound containing at least one active hydrogen atom and a carboxylate or sulphonate salt group.  The use of said material for the production of tamper proof laminates for identification purposes.
Patent CA-1294696-C (CA)
Title: Gasket for e.m.i. shielding, and for sealing
Inventor: DUBROW ROBERT S
IPC: H05K9/00
Filed: 1988-01-12
Granted: 1992-01-21
Abstract: Abstract of the Disclosure This invention provides E.M.I. gaskets for electrically shielding and environmentally sealing the space between two surfaces which comprises a metallic electrically conductive deformable structure adapted for forming electrical contact with said surfaces and/or providing electrical shielding in the space between said surfaces; and a gel material for sealing the space between said surfaces having a cone penetration value of about 100 to about 350 (10-1mm) and an ultimate elongation of at least 200% and being present in sufficient amount and positioned to provide environmental seal between said surfaces and to provide environmental pro-tection for said metallic structure.  The gel may encap-sulate the entire metallic structure so that portions of the metallic structure pierces through the gel when the gasket is installed to make electrical contact.  Alternatively por-tions of the metallic structure may extend beyond the sur-face of the gel and the gel deforms to cover exposed portions of the metallic structure when the gasket is installed.  The gasket of this invention provides moisture seal and is resistant to corrosion.
Patent CA-1334688-C (CA)
Title: Multi-pulse type encoder having a low transmission rate
Inventor: TAGUCHI TETSU
IPC: G10L19/10
Filed: 1988-02-03
Granted: 1995-03-07
Abstract: In an encoder for encoding a speech signal having a spectrum envelope into a plurality of excitation pulses, a spectrum emphasis unit emphasizes peak components of the spectrum envelope to produce an emphasized speech signal.  As a result of a spectrum emphasis operation, the emphasized speech signal has an emphasized spectrum envelope which substantially comprises a plurality of line spectra.  Responsive to the emphasized speech signal, a pulse producing unit produces a plurality of excitation pulses by the use of a pulse search method.
Patent CA-1291855-C (CA)
Title: Door opener aid
Inventor: PETTIT GLENN
IPC: E05B1/00
Filed: 1988-02-15
Granted: 1991-11-12
Abstract: TITLE                           DOOR OPENER AID     INVENTOR                          Glenn PETTIT     ABSTRACT           Small children of walking age and older have difficulty entering into homes with screen doors and the like when the screen door utilizes a plunger type latch set which requires on the one hand depression by thumb action of a plunger and the pulling of the handle in the opposite direction to open the door.  A novel lever with arcuate fulcrum is disclosed which has from its fulcrum a depending handle portion, and on the other side of the fulcrum as the load lever, a distal projection, the end of which bears on the plunger.  By pulling the force handle the load arm is engaged against the plunger and the door is opened with a single outward pulling action.
Patent CA-1314765-C (CA)
Title: Shaped charge carrier
Inventor: APPLEDORN ROGER C
IPC: E21B43/117
Filed: 1988-03-04
Granted: 1993-03-23
Abstract: Abstract A shaped charge carrier assembly includes a thin wall carrier having a charge opening disposed therethrough for freely receiving a shaped charge therein.  A deformable retaining device is integrally formed with the thin wall carrier adjacent a periphery of the charge opening.  The deformable retaining device allows the shaped charge to ini-tially be freely received in the charge opening, but sub-sequently retains the shaped charge in the charge opening upon deformation of the deformable retaining device.
Patent CA-1313061-C (CA)
Title: Calorimetry system
Inventor: HOMER JOHN C
IPC: G01N25/28
Filed: 1988-03-25
Granted: 1993-01-26
Abstract: CALORIMETRY SYSTEM                         Abstract A calorimetry system which is especially suitable for on-line, continuous measurement of the heating value of coal and which provides heating value data which may be used to control coal-fired furnaces in public utility power plants has a calorimeter with a combustor and a mixing unit wherein heat from the combustion gases is transferred to air.  The system has apparatus for pulverizing the coal and a gravimetric feeder for providing pulverized coal at a measured mass feed rate to the combustor.  The system also has devices for preheating the combustor and initiating self-sustained combustion of the coal therein without the need for further supporting fuel gases.          Instrumentation in the system measures the flow rates of the cooling air, primary and secondary combustion air as well as the mass flow rates of the coal into the combustor.  A computer is provided with input/output devices which is responsive to the measuring instruments (thermocouples and pressure gauges) for controlling the feeding of the coal and fuel gases during initiation of combustion and for computing the heating value of the coal.  The computer may have a memory with storage for specific heat values of the constituents of the products of combustion of various ranks of coal (bituminous, subbituminous, lignite, etc.) and the average mass fraction of each constituent in the coal by rank so that the heating value thereof can be determined with accuracy.  The combustor and mixing unit is constructed in a manner to return to the combustion gas and to the combined combustion gas and cooling air most of the radiant and convective heat losses in the system thereby minimizing the effect of heat loss and the effect of ambient environmental (temperature and pressure) changes on the accuracy of the measurement.
Patent CA-1286387-C (CA)
Inventor: ARENSMEIER JEFFREY M
IPC: G05B19/042
Filed: 1988-05-17
Granted: 1991-07-16
Abstract: ABSTRACT OF THE DISCLOSURE A microcomputer-based spark ignition gas burner control system includes program logic to ensure compatibility of spark ignition and a microcomputer. The program logic provides for periodically re-defining the I/O (input/output) ports so as to negate the adverse effect of any electrical noise generated in the system. The program logic also provides, during ignition, a cyclically re-occurring finite time period during which sparking occurs followed by a finite time period during which flame detect circuit means is enabled. The system further includes a fault-tolerant spark generating circuit to ensure that sparking is inhibited during times that the combustion chamber is being purged of any combustible mixture.
Patent CA-1319765-C (CA)
Title: Apparatus for defuelling a nuclear reactor
Inventor: CASHEN WILLIAM S
IPC: G21C19/20
Filed: 1988-05-19
Granted: 1993-06-29
Abstract: Case 2989 APPARATUS FOR DEFUELLING A NUCLEAR REACTOR         ABSTRACT OF THE DISCLOSURE A defuelling arrangement for removing fuel bundles from the upstream end of a nuclear reactor, has a defuelling machine at the upstream end with an arm that can be positioned in axial alignment with a fuel channel in the reactor which has fuel bundles to be removed.  The arm is capable of axial movement.  A fuel grapple is positioned in alignment with the arm and has at one end a plurality of fingers for grappling a fuel bundle and at the other end a mushroom shaped spigot. The arm has mounted on the end a defuelling ram head which has at least two ram head latches mounted for pivotal movement in a plane at right angles to the axis of the arm.  Each latch has a inner latching end and a releasing end, and is spring biased to move the latching end towards the axis.  The latching end has a sloping edge which engages the end of the mushroom spigot when the arm is advanced to pass the latches against the spigot.  The latches pivot to move the latching ends outwardly over the mushroom end of the spigot and then spring outwardly behind the mushroom end to couple the grapple to the ram head.  The arm can now be advanced to grapple the end of a fuel bundle and withdraw it.
Patent CA-1309800-C (CA)
Inventor: MATSUNAGA TAKASHI
IPC: B65D30/02
Filed: 1988-07-06
Granted: 1992-11-03
Abstract: FILM FOR STRETCH PACKAGING             ABSTRACT OF THE DISCLOSURE      A film for stretch packaging comprising as a substrate a film of a linear low density polyethylene having a melt flow rate (190°C), as measured by an ASTM-D-1238E method, of 0.3 to 8 g/10 min., a density, as measured by an ASTM-D-1505 method, of 0.900 to 0.918 g/cm3, a molecular weight distribution (Mw/Mn) of 2 to 6, two or more melting points existing as measured by a differential scanning calorimeter, a maximum melting point Tm1 of 118 to 125°C and a ratio of the height Tm1H of the peak of the highest melting point Tm1 to the height Tm2H of the melting point Tm2 adjacent thereto (i.e., Tm1H/Tm2H), of 1.3 or less.
Patent CA-1302032-C (CA)
Inventor: HOWELLS ROGER A
IPC: B29C48/06
Filed: 1988-07-11
Granted: 1992-06-02
Abstract: ABSTRACT      A cooling chamber for use in in-line association with a continuous extruder for rapidly cooling freshly extruded product, e.g. vinyl fluid hose, to prevent deformation of the fresh extrudate.
Patent CA-1330361-C (CA)
Inventor: SLATE JOHN B
IPC: A61N1/365
Filed: 1988-07-12
Granted: 1994-06-21
Abstract: DEMAND PACEMAKER USING AN ARTIFICIAL BARORECEPTOR RESPONSE          ABSTRACT OF THE DISCLOSURE A device for use in conjunction with a pulse generator is disclosed which provides a variable pulsing rate in response short term to variations in arterial blood pressure,  like the baroreceptor system of the healthy body's cardiovascular system. The system utilizes a pressure transducer implanted together with the pacemaker,  which transducer is preferably located on the proximal axillary artery.   The system features quick response based on physiological need, and also includes a reset feature which maintains a normal resting heart rate despite long term changes in blood pressure.
Patent CA-1299863-C (CA)
Title: Press drying apparatus
Inventor: WEDEL GREGORY L
IPC: D21F3/02
Filed: 1988-07-13
Granted: 1992-05-05
Abstract: ABSTRACT OF THE DISCLOSURE      A press drying apparatus is disclosed for removing excess water  from a  formed web by the simultaneous application  to the  web of  elevated  temperature  and pressure for a prolonged period of time.  The apparatus includes a frame and a heated roll rotatably supported by the frame.  A shoe is connected to the frame with the shoe cooperating with the heated roll for defining therebetween a first nip for the passage therethrough of the web.  A deflection controller is connected to the frame with the controller cooperating with the heated roll for defining therebetween a second nip.  The second nip is disposed diametrically opposite to the first nip such that when the web extends through the first nip and the heated roll is heated, deflection of the heated roll towards the second nip is compensated for by the deflection controller.
Patent CA-1301075-C (CA)
Title: Vented loudspeaker
Inventor: ROTHENBERG RICHARD L
IPC: H04R1/28
Filed: 1988-12-07
Granted: 1992-05-19
Abstract: ABSTRACT           A vented loudspeaker has a speaker and a vent tube within the loudspeaker enclosure, the vent tube being arranged obliquely to the wall on which it is mounted and being longer than the distance between that wall and the opposite wall.
Patent CA-1315690-C (CA)
Title: Synergistic combination of decarboxylase inhibitors and l-dopa pellets
Inventor: HETTCHE HELMUT
IPC: A61K31/195
Filed: 1988-12-30
Granted: 1993-04-06
Abstract: ABSTRACT OF THE DISCLOSURE         Synergistic combination of L-dopa pellets and decarboxylase inhibitors as a medicament against Parkinson's disease.
Patent CA-1310434-C (CA)
Title: Vertical close pack rod arraying system
Inventor: ATTIX DOUGLAS J
IPC: G21C19/33
Filed: 1989-03-22
Granted: 1992-11-17
Abstract: ABSTRACT OF THE DISCLOSURE   A rod arraying system for nuclear fuel rods or burnable poison rods. A support structure positions a consolidation canister vertically to receive the rods. A rod loading pattern provides a gap between rods to allow projections to hold each rod in position. One or more rod arraying devices positioned vertically along and inclined toward the canister provide a triangular pitch loading configuration. A guide assembly slidably mounted on the mounting base of the rod arraying device has two guide plates with scalloped edges. The guide plates are offset relative to each other with one being cycled back and forth by an air cylinder to allow individual loading of fuel rods one row at a time. The inclined weight of the guide plates keeps them in position against the rods to prevent unwanted shifting of rods during the loading operation.
Patent CA-1299729-C (CA)
Title: Procede de controle ultrasonore de l'epaisseur de placage d'un tube metallique, dispositif correspondant et application a des tubes en alliages de zr plaque
Inventor: DESRUELLES DIDIER
IPC: G01B17/02
Filed: 1989-03-28
Granted: 1992-04-28
Abstract: Procédé concernant des tubes dont le placage à contrôler a au moins 0,4 mm d'épaisseur et une impédance acoustique différant de celle de l'âme d'au moins 1% relatif. Dans ce procédé on choisit un traducteur bien amorti, de fréquence 4 à 20 MHz; on ajuste expérimentalement sa position par rapport au tube, ses paramètres de distance et d'orientation étant réglés distinctement, pour augmenter le rapport "signal/bruit"; et on utilise pour la détermination de l'épaisseur du placage au moins un écho double de l'interface placage/âme du tube ou un écho triple de cet interface. Et un dispositif de contrôle ultrasonore correspondant, ainsi que l'application du procédé au contrôle ultrasonore de l'épaisseur du placage de tubes en alliage de Zr plaqué de Zr non allié ou d'un autre alliage de Zr.
Patent CA-1321516-C (CA)
Title: Exhaust-manifold heat insulating board
IPC: F01N13/14
Filed: 1989-05-15
Granted: 1993-08-24
Abstract: EXHAUST-MANIFOLD HEAT INSULATING BOARD     ABSTRACT OF THE DISCLOSURE     An exhaust-manifold heat insulating board is provided which has an insulating layer sandwiched between an inner layer and an outer layer.  The inner and outer layers are laminated together and have an inner area and a peripheral area.  The inner area has a depression with end portions formed therein and the peripheral area is formed into connecting tab portions which are positioned adjacent the end portions.  Each of the connecting tab portions has a length greater than the width of the adjacent end portion of the depression.
Patent CA-1315360-C (CA)
Title: Ttl current sinking circuit with transient performance enhancement during output transition from high to low
Inventor: YARBROUGH ROY L
IPC: H03K17/04
Filed: 1989-06-02
Granted: 1993-03-30
Abstract: Attorney Docket No.:  53.1139 ABSTRACT  TTL CURRENT SINKING CIRCUIT WITH TRANSIENT PERFORMANCE  ENHANCEMENT DURING OUTPUT TRANSITION FROM HIGH TO LOW   A transient voltage difference circuit is coupled into a TTL current sinking output circuit for transient performance enhancement during transition from high to low level potential at the output.  The TT1 output circuit includes a pulldown transistor element for sinking current from an output node to low potential, a base drive transistor for driving the base of a current sinking pulldown transistor element, an input base node of the base drive transistor coupled to receive input signals of high and low level potential, and a voltage clamp network coupled between the input base node and low potential for maintaining a potential level at the input base node sufficient to turn on the base drive transistor.  An RC network is coupled between the input base node and low potential.  The resistance of the RC network is coupled in series with the voltage clamping network adding a transient overdrive voltage in series with the clamping voltage at the input base node when the capacitance of the RC network is charging through the resistance during transition from low to high level potential at the input.  The RC network and the voltage clamp network effectively form a Y network with the common branch coupled to the input base node through the resistance.
Patent CA-1316655-C (CA)
Inventor: BARNOACH ITZHAK
IPC: B29C69/00
Filed: 1989-07-31
Granted: 1993-04-27
Abstract: ABSTRACT     Plastics coated metal tube produced by  folding a strip of  metal into  a tubular form, seaming the tube and immediately extruding layers  of plastics material onto the  inner and  outer surfaces of the metal tube, and cooling  the plastics  layers by  passing the tube through  a  water  bath,  contains  air injected under pressure  to  assist  adhering  the  extruded plastics coating onto  the inner  surface of the metal tube and to test the integrity  of  the  tube.    The invention provides  apparatus  comprising  jaws  which clamp the tube within the water bath in  order to  seal the tube while the  inner coating is still plastic so that when the tube is cut into lengths at the seals the internal pressure  is  retained  until  the  tube is eventually used.