baber/WOPTO huggingface dataset:
Patent CA-2062015-C (CA)
Title: Water heater bottom insulation member
Inventor: LEWIS BRIAN
IPC: F24H9/00
Filed: 1992-02-27
Granted: 1994-10-18
Abstract: A rigid insulation member fits internally at the bottom end of a water heater having an inner tank with an upwardly concave base and an outer shell separated by an insulation gap from the inner tank.  The insulation member has a one piece construction comprising an upwardly convex center portion which mates with the concave base of the inner tank, a peripheral ring which spans the insulation gap and an annular channel between the center portion and the peripheral ring which seats the inner tank of the water heater.
Patent CA-2064259-C (CA)
Title: Antenna module and method for manufacturing the same
Inventor: AMANO TOSHIAKI
IPC: H01Q1/24
Filed: 1992-03-27
Granted: 1996-08-27
Abstract: A ground conducting layer and an antenna element conducting layer are set at a predetermined position in a cavity of a molding die, and molten resin is injected into the cavity, thereby molding a resin-formed member in which said ground conducting layer and said antenna element conducting layer are integrated.  As a result of this, there can provided an antenna module comprising a resin member formed by molding to be a predetermined shape, a sheet-like ground conducting layer adhered to one surface of the resin member, a sheet-like antenna element conducting layer adhered to another surface opposing to the one surface of said resin member, and a feeder for feeding electricity to the antenna element conducting layer.
Patent CA-2066011-C (CA)
Title: Interruption circuit operable at a high speed
Inventor: MURAI MASAO
IPC: G06F9/48
Filed: 1992-04-14
Granted: 1996-11-12
Abstract: In an interruption circuit, each of a multiplicity of interruption generating units (12) is for generating an interrup-tion signal upon occurrence of an interruption request.  A scanning arrangement scans the units to specify one of them at a time as a particular unit and to supply the signal generated by the particular unit to a CPU (11) as a particular signal.  A response supply arrangement supplies the particular unit with a response produced by the CPU upon receipt of the particular signal.   Supplied with the response, the particular unit supplies the CPU with an interruption vector which is specific to each unit and makes the CPU interrupt its operation related to the particular unit.       Preferably, the scanning arrangement comprises a scanning circuit (16) and a first plurality of polling circuits (17), each for a second plurality of generating units with a response control circuit (27) made to correspond thereto.
Patent CA-2070602-C (CA)
Inventor: ARIMA TADAO
IPC: G02B6/42
Filed: 1992-06-05
Granted: 1998-04-21
Abstract: A method of manufacturing an optical module for wavelength-division multiplex optical transmission, which module comprises a first optical fiber having a first port at its one end and a second and a third optical fiber fused to the first optical fiber at its side face such that the first optical fiber is positioned in the center between the second and third optical fibers.  The manufacturing method comprises a first step of regulating the aspect ratio at the fused portion while heating the fused portion and elongating the fused portion at zero speed or a very low speed and a second step of regulating the coupling length of the fused portion while elongating the fused portion at a higher speed than in the aspect ratio regulating step under the conditions of the heating temperature of the fused portion lowered and the aspect ratio kept unchanged.
Patent CA-2083858-C (CA)
Title: Iridium fiber draw induction furnace
Inventor: FLEMING JAMES WILLIAM JR
IPC: C03B37/029
Filed: 1992-11-26
Granted: 1997-10-14
Abstract: An induction furnace 2 for reflowing a portion of an optical preform 10 in order to draw a lightguide fiber 12 therefrom. The furnace 2 has an axially located tubular iridium susceptor 42 which is centrally disposed within a beaker 36 and a sleeve is positioned concentrically around the susceptor 42. The sleeve 48 is surrounded by an insulating grain 46. A high frequency coil 50 is energized to couple its electromagnetic field to the iridium susceptor 42 to heat and reflow a portion of the preform 10 in order to draw the fiber 12 therefrom. The furnace housing 20 is sealed to provide an inert, non-oxidizing atmosphere for the iridium susceptor 42.
Patent CA-2085927-C (CA)
Title: Phosphor composition and x-ray intensifying screen exhibiting peak emission in the ultraviolet
Inventor: LAMBERT PATRICK MADDOCK
IPC: G03C5/17
Filed: 1992-12-21
Granted: 1996-02-13
Abstract: A phosphor composition is disclosed containing a titanium free hafnium zirconium germanate phosphor of a tetragonal scheelite crystal structure which emits electromagnetic radiation principally in the spectral region to which silver halide exhibits native sensitivity.  To maximize the intensity of emission the ratio of host metals satisfies the relationship:                    (Hf1-zZrz)1+xGe1-x where x is 0.15 to -0.10 and z is at least 4 X 10-4 to less than 0.5. An X-ray intensifying screen is disclosed containing the phosphor composition.
Patent CA-2090872-C (CA)
Title: Process for producing crystalline poly-alpha-olefins with a monocyclopentadienyl transition metal catalyst system
Inventor: CANICH JO ANN MARIE
IPC: C08F4/642
Filed: 1991-09-13
Granted: 2001-07-03
Abstract: A catalytic process for polymerizing alphaolefins to produce high crystallinity and high molecular weight poly-alpha-olef ins, using a Group IV-B transition metal component and an alumoxane component.
Patent CA-2090949-C (CA)
Inventor: BROWN JOHN K III
IPC: G06F3/12
Filed: 1993-03-03
Granted: 2003-04-08
Abstract: Flash memory (12) is added to a printer and fonts and macros received at connector (14) are stored under operator control. All data received is first processed under by the printer data processor controller (8) using dynamic memory (10). Printers which respond to more than one language store the downloaded information before termination of a language mode erases the DRAM.
Patent CA-2094727-C (CA)
Title: Hydrogen-containing chlorofluorocarbon aerosol medicaments
Inventor: TAYLOR ANTHONY JAMES
IPC: A61K31/56
Filed: 1991-11-07
Granted: 2002-01-15
Abstract: Aerosol formulations comprising: (A) a medicament selected from the group comprising salmeterol, fluticasone esters, 4-amino-3,5-dichloro-.alpha.-[[[6-[2-(2-pyridinyl)ethoxy]hexyl]amino]methyl]  benzenemethanol and physiologically acceptable salts and solvates thereof in particulate form and having a surface coating of a surfactant; and (B) a hydrogen-containing fluorocar-bon or chlorofluorocarbon propellant; and methods for their preparation.
Patent CA-2098547-C (CA)
Title: Plastic material tube with tear-off cap, said tube with protective capsule, and use thereof
Inventor: SCHNEIDER BERNARD
IPC: B65D41/32
Filed: 1993-06-16
Granted: 2003-08-19
Abstract: The invention relates to a tube (1) whose head (2) includes a leaktight cover (5) which can be torn off by twisting, characterised in that this cover has a side surface (5) of polygonal outline (6) inclined by less than 10 DEG  to the axis (16) of the tube (1), and a tearing region (10) lying between the side surface (50) and an inner surface (11) of the cover (5), including at least one thin portion of minimum thickness from 0.05 to 0.18 mm and at least one portion (9, 9') which is at least 1.5 times thicker. A further subject of the invention is the tube (1) accompanied by a cap (20) preserving the integrity of the perimeter of the cover and including a key (24) engaging with the cover for tearing it off by twisting, as well as its use in particular for storing and dispensing liquids in calibrated drops. The tube is used typically for storing and dispensing medical or cosmetic liquids. <IMAGE>
Patent CA-2098580-C (CA)
Inventor: MEIDAN REUVEN
IPC: H04B10/00
Filed: 1992-10-13
Granted: 1999-05-11
Abstract: A method and apparatus is provided for reducing interference in a radio communication link from a central site (230) to a mobile unit (228) in a cellular communication system. The central site (230) includes a first (202) and a second (216) antenna which serve the geographic region (214) in which the mobile unit (228) is located. The radio communication link may be provided by communicating a signal in a first radio communication channel between the first central site antenna (202) and the mobile unit (228). Similarly, the radio communication link may be provided by communicating a signal in a second radio communication channel between the second central site antenna (216) and the mobile unit (228). A measure of interference in the first radio communication channel providing the radio communication link is determined. The radio communication link is switched, in response to the measure of interference being above a predetermined threshold, from the first to the second radio communication channel.
Patent CA-2100048-C (CA)
Title: Apparatus for the manufacture of a plastic pipe having transverse profile features
Inventor: HEGLER RALPH-PETER
IPC: B29C48/33
Filed: 1993-07-07
Granted: 2004-04-13
Abstract: An apparatus for the manufacture of pipes having transverse profile features has a machine bed, on which half shells, which can be combined to form a mold, are rotatably and displaceably drivable. The half shells are pressed together on a molding path by guide rails, of which one is displaceable at right angles to the direction of production by hydraulically actuatable drives. Interlockings may be provided in addition, a locking member of which engaging with an associated locking recess.
Patent CA-2109935-C (CA)
Inventor: SUHONEN CHRISTOPHER H
IPC: D06P1/00
Filed: 1992-06-02
Granted: 2000-01-25
Abstract: Procédé permettant de teindre des filaments de nylon destinés à être utilisés pour indiquer l'usure des brosses à dents. Dans ce procédé on plonge une charge d'un premier filament de nylon pendant environ 10 à 80 minutes dans une solution aqueuse contenant environ entre 0,01 % et 0,19 % en poids par rapport au volume de colorant indigotine, le pH de cette solution se situant entre 1 et 7 et sa température étant comprise entre 50  C et 90  C. Le colorant pénètre dans le filament pour colorer une zone externe en coupe transversale mais ne pénètre pas dans une zone interne en coupe transversale dudit filament. On retire la charge de premier filament de nylon de la solution et on recommence ces étapes pour une charge d'un deuxième filament de nylon, en utilisant de nouveau la même solution.
Patent CA-2110467-C (CA)
Inventor: KINNER JOSEF
IPC: H01H71/02
Filed: 1993-12-01
Granted: 1998-06-23
Abstract: An electrical installation device for fastening in an attachment position on a carrier rail includes an instrument housing made of insulating plastic and having an instrument housing wall and a bottom facing the carrier rail in an attachment position.  A sliding latch is shaped in one piece to the instrument housing wall and is movable in a locking direction outside of the housing bottom transversely to the attachment direction and to the carrier rail direction. A flexible web, spring elastic in the locking direction, is connected between the sliding latch and the instrument housing wall.  A detent lug is attached to the sliding latch and, in the locking direction, grips behind the carrier rail.        An actuating end is connected to the flexible web and faces away from the detent lug, whereby the sliding latch is returnable against the spring elasticity of the flexible web from a locked position into a release position by actuation of the actuating end.  A longitudinal guide is attached to the instrument housing wall, wherein the sliding latch is guided in the longitudinal guide between the detent lug and the flexible web.
Patent CA-2114984-C (CA)
Inventor: YANG STEVEN S
IPC: H03L7/23
Filed: 1994-02-04
Granted: 2000-05-02
Abstract: A wide bandwidth, low noise, fine frequency step phase locked loop frequency synthesizer (10) and processing method. The synthesizer (10) includes a first divider (16) for dividing a first signal provided by a reference frequency source (12). A first phase locked loop (20) is provided for receiving a divided first signal from the first divider (16) and providing an intermediate frequency signal in response thereto. The first phase locked loop (20) includes a first phase detector (22) for comparing the phase of the first signal to the phase of a first feedback signal and providing a first phase difference signal in response thereto. The first phase locked loop (20) includes a first voltage controlled oscillator (30) for providing the intermediate signal in response to the first phase difference signal. The first phase locked loop (20) includes a first mixer (32) for mixing the intermediate signal with a second signal at a second frequency F2 and providing the first feedback signal in response thereto. A second divider (38) is included in the first phase locked loop (20) for dividing the first feedback signal prior to its application to the first phase detector (22). A third divider (39) is provided for shifting the frequency of the intermediate frequency signal, and a second phase locked loop (40) is coupled to the third divider for processing the frequency shifted intermediate frequency signal and providing an output frequency signal from the synthesizer. The second phase locked loop (40) includes a second phase detector (42) for comparing the phase of the shifted intermediate signal to the phase of a second feedback signal and providing a second phase difference signal in response thereto. A second voltage controlled oscillator (50) is included for providing the output frequency signal froth the synthesizer (10).
Patent CA-2121357-C (CA)
Inventor: TAKARA MUNEAKI
IPC: H02K23/04
Filed: 1992-10-14
Granted: 2000-06-20
Abstract: A rotary electric machine constructed on the basis of a new operational principle, which is operated by using a magnetic repulsive force as its driving force and can be utilized as a motor, etc. In the rotary electric machine, provided are a hollow cylindrical rotor, an outside stator provided concentrically on the outside of said rotor with an outside gap between them, and an inside stator provided concentrically on the inside of said rotor with an inside gap between them. To the outside stator, attached is an outside field system having a plurality of magnetic poles of like polarity at certain spaces along the inner circumference of the outside stator, to the inside stator, attached is an inside field system having a plurality of magnetic poles of the polarity opposite to that of the magnetic poles of the outside field system at certain spaces along the outer circumference of the inside stator. To said rotor, attached is an armature having a plurality of magnetic paired poles disposed at certain spaces along the outer circumference of the cylindrical rotor in such a way that one of each of the magnetic pole pairs appears in the outside gap and the other appears in the inside gap.      Provided is a commutation mechanism for so exciting said armature of said rotor that the outside magnetic poles of said rotor are the same polarity as that of the magnetic poles of the inside stator. The commutation mechanism, further, so excites the rotating armature that the magnetic poles of said armature disappear just before the magnetic poles of the outside and inside stators and that they appear again just after the magnetic poles of the outside and inside stators and that they appear again just after the magnetic poles, of said stators during the rotation. Since such a rotary electric machine has a large output torque, it can be used, fore example, as a source for generating the driving force of an electric vehicle.
Patent CA-2121851-C (CA)
Inventor: COSTELLO JAMES
IPC: E06B3/70
Filed: 1994-04-21
Granted: 1999-01-12
Abstract: A door having an appearance of being entirely made of wood which is provided by panels of wood veneer adhesively secured to a core of thin gauge sheet metal panels.  The sheet metal panels are adapted for this purpose by being imparted with horizontal and vertical fold lines which enable the panels to resist flexing and bending out of plane, to thereby contribute to anti-warping and other noteworthy features.
Patent CA-2123429-C (CA)
Title: Polymerisable compositions
Inventor: ASHTON DAVID P
IPC: C08K3/00
Filed: 1992-11-11
Granted: 2004-05-25
Abstract: A polymeric dispersant having a low Tg polymer component, e.g. polybutadiene, and a pendant silylated group with hydrolysable groups capable of associating with and dispersing finely divided inorganic fillers. Curable compositions containing the polymeric dispersant can be cured into composite materials having improved resistance to stress induced by thermal cycling.
Patent CA-2123445-C (CA)
Inventor: CROWE BARRY ARNOLD
IPC: A47B81/06
Filed: 1994-05-12
Granted: 2002-07-16
Abstract: The storage system is for use with storage cases particularly of the type used to enclose compact disks, video tapes, cassette tapes and the like, however it may also be used to store any other type of storage case that is compatible with this type of storage. The storage system enables the user to store and maintain a large collection of cases, to add a new addition to the collection at any location within the collection without shuffling the collection, and to remove unneeded portions of the collection without leavins gaps in the storage system.
Patent CA-2131451-C (CA)
Inventor: MORRISON ANTHONY
IPC: A23L29/281
Filed: 1993-02-26
Granted: 1997-11-18
Abstract: Le présent brevet décrit un produit à tartiner qui comprend (A) de 0,1 à 7 % en poids de gélatine; (B) de 5 à 30 % en poids d'amidon hydrolysé gélifiant, et (C) de 0,5 à 7 % en poids de matières grasses.
Patent CA-2147603-C (CA)
Inventor: OCHI KATSURA
IPC: E01F9/619
Filed: 1992-10-30
Granted: 2002-09-03
Abstract: A method for making retroreflective sheeting comprising the steps of placing a light-transmittable protective film on glass beads in a support sheet which consists of a binder layer and a reinforcing layer, and which is provided with retroreflective glass beads embedded in the binder layer, and thermoforming parts of the support sheet under heating and pressure so as to partially bond the binder layer of the support sheet to the protective film, which is characterized in that the reinforcing layer of the support sheet consists of a crosslinkable resin having shearing stress S in the range of 6 x 10 6 - 1.2 × 10 7 dyne/cm2 before the thermoforming. A retroreflective sheeting made by this method has a high uniformity of the joint portions of the support sheet and protective film. Even when this retroreflective sheeting is used outdoors for a long period of time, troubles including peeling-off of the protective film do not substantially occur. This retroreflective sheeting can be utilized extensively as a road sign board, a license plate for a vehicle, a sign board for construction work and an advertisement board.
Patent CA-2151704-C (CA)
Inventor: SRISATHAPAT CHAD
IPC: A61M37/00
Filed: 1995-06-13
Granted: 2005-08-09
Abstract: An implantable medication infusion pump is provided of the type having a pressure reservoir with a selected pressure fluid therein for maintaining liquid medication in an adjacent medication chamber under a substantially constant pressure. The reservoir comprises a hollow structural enclosure defined by at least one movable wall and adapted to be filled with a selected quantity of the pressure fluid, particularly such as a selected fluorocarbon in a liquid-vapor state. The movable wall of the pressure reservoir is shared with and defines one side of the medication chamber, with the pressure fluid undergoing appropriate change of state to expand or contract the pressure reservoir in a manner maintaining the medication under substantially constant pressure. The improved pressure reservoir includes an internal spacer element to prevent contraction of the pressure reservoir beyond a minimum volume at least slightly greater than the liquid state volume of the pressure fluid therein.      With this construction, at least some pressure fluid within the pressure reservoir remains in a vapor state at all times.
Patent CA-2151791-C (CA)
Inventor: LI RUI-QUING
IPC: C22B5/16
Filed: 1995-06-14
Granted: 1999-08-17
Abstract: The present invention is concerned with a process for the direct smelting of zinc containing materials. The process includes volatilizing zinc from zinc-containing materials into a gas phase, while sulphur is fixed as iron sulphide in a Fe-S-O matte. Thereafter, zinc is recovered in metallic form with a suitable condenser apparatus from a zinc laden gas consisting of Zn(g), CO, CO2 and N2. Other metals like silver, cadmium, mercury and lead may also be recovered in this manner.
Patent CA-2156797-C (CA)
Title: Method and apparatus for parsed dynamic differential analysis
Inventor: READING MICHAEL
IPC: G01N25/20
Filed: 1995-08-23
Granted: 1999-10-12
Abstract: The interpretation of dynamic differential calorimetry ("DDSC") data is enhanced by parsing the data according to whether it is obtained while the sample is being heated, cooled, or re-heated.  Each DDSC scan is split up into three separate components, depending upon whether the sample is undergoing heating, cooling or reheating.  Each component can then be analyzed separately to investigate the sample response to temperature change as the sample is being heated, cooled, or re-heated.  Each file is deconvoluted separately, using a deconvolution routine that first removes the effect of the phase lag due to the instrument's finite response time.
Patent CA-2161896-C (CA)
Title: Method of floating calcium carbonate ore and flotation reagent therefor
Inventor: KLINGBERG ANDERS
IPC: C09K3/00
Filed: 1994-04-27
Granted: 2004-09-14
Abstract: The invention relates to a method of floating calcium carbonate ore containing silicates as impurities. Flotation is performed in the presence of a quaternary ammonium compound and an alkylene oxide adduct of an amine compound, the silicate being concentrated in the float
Patent CA-2162567-C (CA)
Title: Stereophonic reproduction method and apparatus
Inventor: PINEAU JOSEPH E M
IPC: H04S1/00
Filed: 1994-05-06
Granted: 2001-04-10
Abstract: A method and apparatus for stereophonic reproduction uses conventional left and right stereophonic signals to energize a point source transducer in a complementary manner. The resultant interference sound pattern is interpreted by the brain of a listener to enable the listener to experience stereophonic hearing in a wide region surrounding the transducer, not just in the region of the plane of symmetry. A point source transducer may be simulated by a plurality of transducers positioned with the spacing therebetween less than a determinable maximum distance. While conventional stereophonic signals may be employed in the reproduction of sound, improved reproduction is obtained by producing the signals by recording sound with a pair of microphones arranged with the apogees of their respective field of polar response patterns facing substantially at 180° to one another.
Patent CA-2166937-C (CA)
Inventor: NIEDERMAIR SIEGFRIED
IPC: B29C33/52
Filed: 1996-01-10
Granted: 1999-03-23
Abstract: A  lost  core  process  is  disclosed  for  removing  an overmoulded lost core from within a hollow product which has been overmoulded over the core, wherein the core is melted and removed by a vapour contact method.  Heat is transferred to the core by condensation of vapour of a heat transfer fluid, which has a boiling point higher than the melting point of the core and lower than the melting point of the product.  The heat of condensation transferred to the core by the vaporized heat transfer fluid melts the core which then flows from the hollow part.  This lost core process allows the manufacture of high quality  surfaces  on  the  insides  of  hollow parts,  while permitting close wall tolerances to be maintained, and may be used to manufacture complex parts such as water pump housings and intake manifolds.