baber/WOPTO huggingface dataset:
Patent CA-2016028-C (CA)
Title: Method of fabricating oxide superconducting film
Inventor: OKUDA SHIGERU
IPC: H01L39/24
Filed: 1990-05-03
Granted: 1999-07-20
Abstract: A laser beam (2) is applied to a target (1) of an oxide superconductive material, to deposit atoms and/or molecules which are scattered from the target (1) on a first portion (4) of a substrate (3) under an atmosphere containing oxygen for a start.  Then, the substrate (3) is moved to deposit atoms and/or molecules scattered from the target (10) on a second portion, which is different form the first portion (4) of the substrate (3), under the atmosphere containing oxygen.  At this time, the first portion (4) is subjected to oxygen annealing.  These deposition steps are repeated until an oxide superconducting film of a desired thickness is obtained.
Patent CA-2027880-C (CA)
Title: On-line coater apparatus
Inventor: BALDINI GIORGIO
IPC: B05C9/14
Filed: 1990-10-17
Granted: 2002-01-01
Abstract: An on-line coater apparatus is disclosed for coating a web of paper. The apparatus includes a dryer section having a plurality of single-tier dryer groups, each successive group drying an alternate side of the web, the web being restrained against cross-machine directional shrinkage during passage through the plurality of dryer groups. A further single-tier dryer group is disposed downstream relative to the plurality of groups such that the web extends in an open draw between the plurality of groups and the further group.      A tail cutter is disposed adjacent to the open draw for cutting a tail from the web for subsequent threading through the further group. A calender is disposed downstream relative to the further group for calendering the dried web.      A coater is disposed downstream relative to the calender for coating one side of the web, and a single-tier coating dryer group is disposed downstream relative to the coater for drying the coated one side of the web. A winder is disposed downstream relative to the coating dryer group for winding the coated web.
Patent CA-2044844-C (CA)
Inventor: HOLM DAVID ROY
IPC: B60R16/023
Filed: 1991-06-18
Granted: 1996-04-16
Abstract: The ignition switch for a vehicle such as a lawn and garden tractor is connected directly to a printed circuit board which also includes interlock systems components.  The circuit board with the switch and other components is wave soldered in an automated process to make good electrical connections for reduced voltage drops, thereby reducing the number of relays required.  Wiring harnesses are also soldered directly to the board during the soldering step.  In the preferred embodiment, the ignition switch is fixed to the board and supports the board from the console of the vehicle. However, if the switch or another component on the circuit board needs to be remotely located with respect to the remainder of the board, the switch or component is mounted on a break-away section of the board, and the wires connecting the board sections are soldered with the remainder of the components during the automated process.  After the board is manufactured as one assembly, the section is snapped apart from the remainder of the board, and the board and break-away section are mounted at the desired locations on the vehicle.
Patent CA-2045489-C (CA)
Title: Optical fiber coupler
Inventor: NEWELL EDWIN RASBERRY
IPC: G02B6/36
Filed: 1990-11-05
Granted: 1998-12-29
Abstract: An optical fiber coupler including an optical fiber having an end, and an electronic light pulse communication assembly comprising an assembly housing, an electronic light pulse communication device fixed within the assembly housing, and a lens mounted on the assembly housing and in light pulse communication with the electronic light pulse communication device.  The optical fiber coupler also includes a coupler housing having an inlet well, an assembly well separated from the inlet well by a coupler housing well and having the assembly fixedly received therein, and a fiber passage which extends between the inlet well and the assembly well and which snugly receives the fiber so that the fiber end is adjacent the assembly lens. The coupler housing further includes epoxy in the inlet well so that the fiber is secured to the coupler housing, and index matching gel surrounding the optical fiber end to assembly lens junction so that substantially all of the light passing between the assembly lens and the fiber does not escape from the optical fiber end to assembly lens junction.
Patent CA-2047432-C (CA)
Inventor: MAREE JOHANNES P
IPC: C02F1/52
Filed: 1991-07-19
Granted: 2001-11-20
Abstract: A water quality improvement process is provided for acid water containing sulphate and/or sulphite ions. The water is continuously fed into a fluidized bed containing calcium carbonate particles. The water consumes calcium carbonate and has its pH increased while calcium sulphate CaSO4 and/or CaSO3 are produced.
Patent CA-2054170-C (CA)
Title: Production of chlorofluorocarbon-free urethane-containing soft-elastic moldings having a cellular core and a compacted peripheral zone
Inventor: HORN PETER
IPC: B29K75/00
Filed: 1991-10-24
Granted: 1996-12-03
Abstract: Chlorofluorocarbon-free urethane-containing,  soft-elastic  moldings  having  a cellular  core,  a  compacted  peripheral  zone  and  an essentially pore-free smooth surface are produced by reacting a)      an organic and/or modified organic polyisocyanate with b)      at least one relatively high-molecular-weight compound  containing  at  least  two  reactive hydrogen atoms and, if desired, c)      a low-molecular-weight chain extender and/or crosslinking agent, in the presence of d)      a blowing agent, e)      a catalyst, f)      a crystalline, microporous molecular sieve having a  cavity  diameter  of  less  than  1.3 nm  and comprising metal oxides or metal phosphates, and, if desired, further additives and g)  assistants, in a closed mold with compaction, expediently by RIN.
Patent CA-2056411-C (CA)
Title: Peroxyacid manufacture
Inventor: TROUGHTON NICHOLAS ARADOR
IPC: C07C409/24
Filed: 1990-05-21
Granted: 2002-10-15
Abstract: In one class of processes for making poorly soluble organic peroxyacids the corresponding carboxylic acid is reacted with hydrogen peroxide in a reaction medium containing a high concentration of sulphuric acid. The presence of such constituents in the reaction mixture and the manner of the reactants and the way in which they are brought into contact, can result in the processes being hazardous. In the present invention, hazard problems are reduced or eliminated by first dissolving the carboxylic acid in concentrated sulphuric acid, secondly forming a Caro's acid solution containing a complementary amount of sulphuric acid and hydrogen peroxide within a predetermined range, and then introducing the carboxylic acid solution at a controlled rate into the Caro's acid solution, often over a period of from about 30 to 90 minutes, with agitation and temperature control. The compositions of the two reactant solutions are precalculated relative to each other such that the A value (weight ratio of sulphuric acid to the the combined weight of it and water) either increases during addition of the carboxylic acid solution or if the latter is relatively less insoluble, stays the same or increases. The solutions are preferably formulated to provide an A value at the end of the reaction period selected in the range of around 0.7 to around 0.8, at a temperature of around 20 to 45°C, the more soluble tending towards the lower end of each range and the less soluble towards the upper end of each range. The process is especially suitable for making poorly soluble aliphatic mono or diperoxycarboxylic acids such as peroxynonanoic acid or diperoxydodecanedioic acid, or for aromatic group substituted peroxyacids in which the peroxydation occurs in a primarily aliphatic environment, such as phthalimidoperoxyhexanoic acid. In another aspect, the present invention provides the peroxyacid 6,6'-terephthal-di(amidoperoxyhexanoic) acid and a process for preparing this compound.
Patent CA-2059416-C (CA)
Title: Engine cooling system for snowmobile
Inventor: KAZUTAKA FUKUDA
IPC: F01B1/12
Filed: 1992-01-15
Granted: 2002-07-30
Abstract: A snowmobile having a liquid cooled transversely disposed internal combustion engine comprised of two blocks each containing two cylinder in aligned fashion. The coolant pump for the engine is disposed on one side of the engine and communicates with cooling jacket inlets on the other side through conduits that extend through the crankcase for controlling the temperature of the crankcase.
Patent CA-2060721-C (CA)
Title: Dispositif et procede de mise a niveau d'un liquide dans une chambre d'un circuit extracorporel de sang
Inventor: RIQUIER JEAN-CLAUDE
IPC: A61M1/30
Filed: 1992-02-05
Granted: 2003-08-19
Abstract: Dispositif de traitement du sang par circulation extracorporelle dans un circuit comprenant: une canalisa- tion artérielle, sur laquelle est disposée une chambre artérielle, pour relier un patient à un appareil de traitement; une canalisation veineuse, sur laquelle est disposée une chambre veineuse, pour relier l'appareil de traitement au patient; au moins une pompe pour faire circuler un liquide dans le circuit; des moyens pour faire varier la quantité d'air dans chaque chambre; des moyens pour détecter dans chaque chambre un niveau bas déterminé de liquide et un niveau haut déterminé de liquide; et des moyens de commande pour commander les moyens pour faire varier la quantité d' air dans chaque chambre de façon que, en fonctionnement, le niveau du liquide mis en circulation varie entre le niveau bas et le niveau haut dans chaque chambre, et inversement. Et un procédé de réglage du niveau de liquide dans une chambre artérielle et dans une chambre veineuse connectées respectivement en amont et en aval d'un appareil de traitement de sang d'un circuit de circulation extracorporelle de sang.
Patent CA-2060755-C (CA)
Title: Odor-adsorbent activated charcoal
Inventor: LAPIDUS HERBERT
IPC: A43B17/00
Filed: 1992-02-06
Granted: 1998-08-04
Abstract: An improved foot odor adsorbent is described having about 2.5% by weight of zinc oxide impregnated onto finely divided activated charcoal.  Data is presented comparing the odor-reducing ability of the improved charcoal to conventional activated charcoal, zinc oxide powder, and standard latex foam that has been vulcanized with zinc oxide.  Data is also presented showing the comparative odor-reducing ability of latex foam which incorporated various amounts of the improved activated charcoal and standard foam incorporating conventional charcoal.
Patent CA-2063508-C (CA)
Title: Manufacture of a micromechanical element with two degrees of freedom
Inventor: BOL IGOR I
IPC: B23P11/00
Filed: 1992-03-19
Granted: 1999-07-13
Abstract: A method of fabricating a micromechaincal structure of a rod enclosed by a casing and able to both slide and rotate in the casing is described. The rod is formed on a substrate by growing a cylinder into a wall. The wall is then removed leaving the cylinder. The cylinder is coated with a sacrificial layer and a structural layer. The structural layer is patterend to form the casing and the sacrificial layer is removed.
Patent CA-2065451-C (CA)
Inventor: MINDE TOR BJORN
IPC: G10L25/06
Filed: 1991-07-15
Granted: 2002-05-28
Abstract: The invention relates to a method of coding a sampled speech signal vector by selecting an optimal excitation vector in an adaptive code book (100). This optimal excitation vector is obtained by maximizing the energy normalized square of the cross correlation between the convolution (102) of the excitation vectors with the impulse response (h w (n)) of a linear filter and the speech signal vector. Before the convolution the vectors of the code book (100) are block normalized (200) with respect to the vector component largest in magnitude. In a similar way the speech signal vector (s(n)) is block normalized (202) with respect to its component largest in magnitude. Calculated values for the squared cross correlation C I and the energy E I and corresponding values C N, E M for the best excitation vector so far are divided into a mantissa and a scaling factor with a limited number of scaling levels. The number of levels can be different for squared cross correlation and energy. During the calculation of the products C I × E M and E I × C M, which are used for determining the optimal excitation vector, the respective mantissas are multiplied and a separate scaling factor calculation is performed.
Patent CA-2066062-C (CA)
Title: Transformer and power supply for a pulse-arc welding station
Inventor: GILLILAND MALCOLM T
IPC: B23K9/09
Filed: 1992-04-15
Granted: 1995-01-31
Abstract: A transformer (12) and power supply (10) for powering one or more welding stations (24). A spacing layered (12E) is inserted between the primary windings (12A, 12B, 12C) and the secondary windings (12F, 12G, 12H) so as to control the degree of coupling between these windings. In addition, impedances (11, 14, 17) may be used individually or collectively, alone or with the transformer (12), to achieve a desired output voltage-output current characteristic for the power supply (10). The output voltage at the connections (20, 21) of the power supply (10) drops off at a rate selected to minimize heating in the welding stations (24) while maintaining the quality of the weld being performed.
Patent CA-2069581-C (CA)
Title: Toe guard for reducing air vibrations about an elevator
Inventor: DE JONG JOHANNES
IPC: B66B11/02
Filed: 1992-05-26
Granted: 1996-10-29
Abstract: A toe guard for an elevator is disclosed,  at least part of which consists of a structure penetrable to air flow, thus diminishing the tendency of the toe guard to increase the air flow in the space between the front wall of the elevator car and the shaft wall.
Patent CA-2070699-C (CA)
Inventor: KANDPAL TARA C
IPC: F04B39/10
Filed: 1992-06-08
Granted: 1994-10-25
Abstract: A reciprocating piston hermetic compressor including a two piece suction valve used for fluid control is shown.  The method of manufacturing a two piece suction valve capable of being deburred by abrasive material.  The reexpansion volume between the valve leaf and valve spacer is reduced to a minimum since the clearance between the valve leaf and valve spacer is reduced by the fabrication method.  The valve leaf may be made of a different material than the valve spacer using the same or different stamping tool.
Patent CA-2075753-C (CA)
Inventor: JAMET DANIEL
IPC: H01R13/658
Filed: 1992-08-12
Granted: 1996-08-20
Abstract: This seal essentially comprises an oblong-shaped metal sheet provided with two folds along two longitudinal axes (D1, D2) called folding axes, defining, on this sheet, two lateral flanges (34, 35) inclined with respect to a central panel (36), and with an oblong-shaped opening (29), which has a width (a) slightly less than the distance (b) between the folding axes, so that, with the parts of the central panel which are located on the transverse part of the perimeter of the opening having been disengaged, before folding, from those parts (37, 38) which are located on the longitudinal part of the perimeter of the opening and which lie between the folding axes and this opening, these parts can form an extension of the said lateral flanges in the region of the opening. 
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Patent CA-2077076-C (CA)
Inventor: SHUERT LYLE H
IPC: B31B50/25
Filed: 1991-03-05
Granted: 2001-10-23
Abstract: A container (10) for bulk materials includes a cardboard tu-bular sleeve assembly (17) having its lower edge portion in upwar-dly opening groove (40) on a plastic pallet (14). The tubular sleeve assembly (17) comprises inner (70) and outer (71) tubular sleeves respectively formed of first and second corrugated cardboard struc-tures with the inner sleeve (70) positioned telescopically within the outer sleeve (72) and with the outer annular surface of the inner sleeve secured to the inner annular surface of the outer sleeve to form a composite sleeve assembly having a thickness approximate-ly the width of the groove (40) on the pallet (14). An auxiliary card-board sheet (78, 80) is secured to the outboard surface of the outer tubular sleeve (72) and an auxiliary cardboard sheet (78, 80) is se-cured to the inboard surface of the inner cardboard sleeve. A vinyl sheet (82) is adhesively secured to the auxiliary cardboard sheet of the outer tubular sleeve and a further vinyl sheet (82) is adhesively secured to the auxiliary cardboard sheet of the inner tubular sleeve.
Patent CA-2077461-C (CA)
Title: Inhibition of the formation or activity of human leukocyte 12-lipoxygenase pathway
Inventor: NADLER JERRY L
IPC: A61K31/05
Filed: 1992-09-03
Granted: 2000-02-15
Abstract: The discovery of a new form of 12-lipoxygenase RNA and protein in human adrenal, mononuclear, vascular smooth muscle and endothelial cells is disclosed.      Activation of this 12-LO pathway mediates angiotensin II and glucose induced vascular and renal actions. A rationale for the development of pharmaceutical or molecular methods to inhibit this newly discovered lipoxygenase pathway is described.
Patent CA-2077743-C (CA)
Title: Ball valve with lockable security device
Inventor: PETTINAROLI GIUSEPPE
IPC: F16K35/06
Filed: 1992-09-08
Granted: 1996-05-28
Abstract: A ball valve comprising a body including a valve chamber having inlet and outlet ports, and a rotatable ball element disposed within the valve chamber, the ball element having a conduit therethrough which communicates with the inlet and outlet ports.  The ball element is movable by a control lever between an open position and a closed position.  The valve is provided with a lockable security device which automatically locks the ball element in a positive closed position when the control lever moves the ball element from an open position to a closed position.  The lockable security device includes a rotatable cylinder, a locking cylinder slidably mounted on the rotatable cylinder, a supplemental locking member to selectively allow manual locking of the locking cylinder in a position to prevent sliding movement of the locking cylinder on the rotatable cylinder.
Patent CA-2078866-C (CA)
Title: Method for embedding information in modem handshake procedure and modems incorporating the same
Inventor: HALLMAN EDWARD H
IPC: H04M11/06
Filed: 1991-03-14
Granted: 2000-12-12
Abstract: Method for embedding additional information (e.g. a password function) in a handshake of communicating modems is provided. An auxiliary packet (20b) containing the additional information is placed in the handshake sequence of an originating modem in such a manner that it cannot be confused by the receiving modem with other signals which are required to be sent by the originating modem in the modem handshake. The answering modem looks for the auxiliary packet (20b), and if the auxiliary packet (20b) is not received, or if the information in the auxiliary packet (20b) is not sufficient to establish authorization, the answering modem causes the call to be dropped. In V.32 type modems, the auxiliary packet (20b) is placed by the originating modem somewhere in the training sequence (TRN) after the required twelve hundred eighty symbol intervals, and before the R2 sequence, and the auxiliary packet (20b) is generated in such a manner that it cannot be confused with the R2 sequence. In order to guarantee that the auxiliary packet (20b) is discernible and that no confusion with other signals is possible, the auxiliary packet (20b) is comprised of two multiplexed signals; an information signal at 2400 bit/second rate which includes a burst flag (50b) and an HDLC formatted start flag (52b), password (70b), check sum (75b), and stop flag (78b); and a 2400 bit/second R2 prevention signal which is coded to be compatible with the burst flag (50b) and to guarantee that regardless of the HDLC formatted signal, the composite auxiliary packet (20b) cannot constitute an R2 sequence.
Patent CA-2081377-C (CA)
Title: Compact keratoscope with interchangeable cones
Inventor: GERSTEN MARTIN
IPC: A61B3/107
Filed: 1990-10-25
Granted: 1999-05-04
Abstract: A keratoscope image processing system having a compact keratoscope usable with a variety of light ring cones employs an improved cone (13) and lightbox (23) combination in which the light transmitting rings (20) of the cone (13) are more sharply defined by being positioned between incised opaque rings, and which the lightbox (23) has facets for mounting and heat-sinking a pair of laser diodes (23), a semi-toroidal cavity for mounting a ring-shaped fluorescent lamp (16) for illuminating the cone (13) and tunnels that direct the laser beams into the cone (13) to intersect on the visual axis of the cone. The light box (23) provides a surface for fixedly mounting a pair of mirrors (38) that redirect the laser beams. The different cones are identified by patterns of light pervious spots illuminated from the lightbox (23) and sensed by detectors (30) mounted in the lightbox (23). Signals from the detectors (30) modify the image processing in accordance with stored optical characteristics corresponding to the detected patterns.
Patent CA-2085216-C (CA)
Title: Tetrahydroisoquinolinylcarbamates of 1,2,3,3a,8,8a- hexahydro-1,3a,8-trimethylpyrrolo ¬2,3-b| indole
Inventor: HAMER RUSSELL RICHARD LEE
IPC: A61K31/47
Filed: 1990-06-27
Granted: 2000-12-05
Abstract: There are disclosed tetrahydroisoquinolinylcarbamates of 1,2,3,3a,8,8ahexahydro-1,3a,8-trimethylpyrrolo¢2,3-b!indole of formula (I), where R is hydrogen or loweralkyl; and X is hydrogen, loweralkyl, halogen, loweralkoxy or hydroxy, which compounds being useful for alleviating memory dysfunctions characterized by a cholinergic deficit.
Patent CA-2086223-C (CA)
Title: Dental cleaning instrument
Inventor: MAEKAWA KIYOSHI
IPC: A61C15/00
Filed: 1992-12-23
Granted: 1995-06-13
Abstract: A dental cleaning instrument for cleaning the interproximal area between teeth is constructed with three threads of yarn.  The first thread is initially supported on a first post and a second thread of yarn is supported on a second post.  The third thread is wound on a bobbin and then interlaced around and between the first and second threads in a figure-8 pattern, while the first and second threads are simultaneously advanced in a direction normal to the plane  in which the bobbin is moving.   The resulting instrument consists of woven threads having a combined denier in the range of 480-1240, with superior spreadability and separation of ends.
Patent CA-2087234-C (CA)
Title: Corner notched disk
Inventor: BROWNE JOHN
IPC: G09F11/23
Filed: 1993-01-13
Granted: 1998-12-01
Abstract: A B S T R A C T     Diametrically pivotal disk is electromagnetically driven to display bright (ON) or dark (OFF) sides and has an optic fibre rearward of the disk.  The disk is provided with a cut out to allow emission from the fibre in the ON position of the disk and the disk is shaped to prevent emission of light from the fibre in the OFF position of the disk.
Patent CA-2092012-C (CA)
Inventor: WILHOIT DARREL LOEL
IPC: C08L31/04
Filed: 1993-03-19
Granted: 1995-10-10
Abstract: A biaxially heat-shrinkable food packaging film comprises a three component blend wherein the major constituents are a polyethylene such as VLDPE or LLDPE or a mixture thereof, EVA and an ethylene alpha-olefin plastomer copolymer of a density below about 0.90 g/cm3.