baber/WOPTO huggingface dataset:
Patent CA-2058387-C (CA)
Title: Method and circuit for regenerating the binary bit stream from a ternary signal
Inventor: SCHOLZ WERNER
IPC: G11B20/14
Filed: 1991-12-23
Granted: 2001-04-24
Abstract: Method and circuit for regenerating the binary bit stream from a ternary signal In the application P 40 41 717, an improvement in the signal-to-noise ratio with a bit stream regenerator was achieved using a circuit simplified in comparison with the Viterbi detection. The object of the present invention is to make it possible to employ this circuit for a PR4 signal and to increase the transmission reliability.      Two value sequences can be formed by demultiplexing the scanning values of the ternary PR4 signal and these correspond to signals whose impulses are directed alternately positive and negative with respect to a center line. The two scanning value sequences are processed in the time-division multiplex in a circuit corresponding to the older application (Figs. 9 and 10).      In particular for the bit regeneration in a digital video recorde.
Patent CA-2066631-C (CA)
Title: Catalytic destruction of sulfur-oxygen anions
Inventor: ANDERSON ERNEST RAYMOND
IPC: G03C5/00
Filed: 1991-07-18
Granted: 1996-11-12
Abstract: Anions containing sulfur and oxygen, e.g. thiosulfate, can be catalytically reduced using a protonated anion ion exchange resin as a catalyst.  The process is preferably conducted in an aqueous system and at a pH below about 8.
Patent CA-2067057-C (CA)
Title: Fluorescent lamp fixture
Inventor: BENTLEY RAYMOND B
IPC: F21V15/015
Filed: 1992-04-24
Granted: 1999-01-05
Abstract: A fluorescent-type lamp fixture is disclosed which can be rapidly assembled and has channel and cover members each with means to enable the members to be snapped together.  The cover member carries spaced-apart holders for receiving the lamp and other electrical components.  A pair of caps are provided which are plugged into the open ends of the assembled channel and cover members, the caps are shaped to insure proper alignment and effect their retention.  A lens is also provided having projections that are snapped into recesses in the end caps to hold it securely.  In another embodiment, a light shield is rotatably mounted on adaptors positioned adjacent to the caps to direct light to a number of positions.
Patent CA-2067733-C (CA)
Title: Process for the preparation of a tablet or dragee composition containing a heat-, light- and moisture-sensitive active ingredient having monoclinic crystal structure
Inventor: KOVACS ISTVAN
IPC: A61K47/02
Filed: 1991-09-23
Granted: 2002-03-19
Abstract: The invention relates to a process for the preparation of a tablet or drag~e composition containing a moisture-, heat- and light-sensitive compounds having monoclinic crystalline structure as active ingredients, which comprises homogenizing the active ingredient with 0.2 to 1.5 parts by weight of an anhydrous alkaline earth metal salt and 0.5 and 2.5 parts by weight of microcrys-talline cellulose calculated for the active ingredient and optionally with one or more pharmaceutically acceptable carrier(s) and/ or additive(s) and compressing the homogeneous mixture obtained to tablets in a manner known per se and, if desired, coating the tablet thus obtained in a manner known per se.
Patent CA-2069456-C (CA)
Inventor: KNIGHT ANN E
IPC: C09K23/42
Filed: 1992-05-22
Granted: 2003-12-30
Abstract: The invention provides polyisocyanate compositions having a uretonimine-modified isocyanate content of from 4 % to 75 % by weight, calculated on the whole composition, comprising a uretonimine-modified polyisocyanate and a non-ionic surface-active agent devoid of hydroxy, amino and carboxylic acid groups, and aqueous emulsions thereof having improved stability and pot-life.
Patent CA-2069549-C (CA)
Title: Dewatering apparatus for drop marking bottles and cans
Inventor: BHATIA CHANDRAKANT R
IPC: B65C3/14
Filed: 1992-05-26
Granted: 1998-08-04
Abstract: An air knife assembly is disclosed for removing water and soapy lubricants from an area of a bottle or can which is to be labeled or coded using drop marking equipment.  The air knife is positioned at the correct pitch, roll and yaw angles to remove water from a desired area only, avoiding damage to labels which have been applied but not yet bonded to the bottle or can.  The dewatering ensures accurate marking of the product.
Patent CA-2072700-C (CA)
Title: Vacuum cleaner remote switch actuator
Inventor: MAURER EDGAR A
IPC: A47L9/28
Filed: 1992-06-29
Granted: 1996-12-03
Abstract: A switch actuator for an upright vacuum cleaner consists of two elongated rod sections adapted for interconnection by means of a barbed clevis at the end of one of the sections adapted for engaging a receptacle at the end of the othersection. One of the sections is maintained within an upper handle portion and the other within a lower handle portion of the vacuum cleaner. As the two handle portions are interconnected, interconnection of the actuator rod sectionsis automatically effectuated. The actuator rod section maintained in the upper handle portion is also adapted to receive an actuator button which has a connector passing through a slot in the vacuum cleaner handle. The button remains external to the vacuum cleaner handle, while the connector portion thereof extends internally thereof and mates with one of the actuator rod sections.
Patent CA-2077420-C (CA)
Title: Imidazoindolizine derivatives and process for preparation thereof
Inventor: HONMA YASUSHI
IPC: A61K31/435
Filed: 1992-09-02
Granted: 1998-08-25
Abstract: An imidazoindolizine derivative of the formula [I]:       wherein R1 is lower alkyl, R2 is hydrogen, cyano, lower alkyl, lower alkanoyl, lower alkoxycarbonyl, phenyl-lower alkoxycarbonyl, lower alkylsulfonyl, substituted or unsubstituted phenyl, arylcarbonyl, or 5- or 6-membered nitrogen-containing heteromonocyclic group-substituted carbonyl, Ring A is substituted or unsubstituted phenyl, and m is 0 or 1, or a pharmaceutically acceptable salt thereof, and process for preparation thereof, said imidazoindolizine derivatives and pharmaceutically acceptable salts thereof show excellent angiotensin II inhibitory activities and are useful in the prophylaxis or treatment of hypertension.
Patent CA-2078260-C (CA)
Title: Process for the production of disposible products from metal chlorides in a titanium dioxide chloride process
Inventor: SCHINKITZ DIETER
IPC: A62D3/38
Filed: 1992-09-15
Granted: 1998-09-15
Abstract: In order to treat metal chlorides obtained in the form of dust collector solids in the production of titanium dioxide by the chloride process, the inert constituents, especially particulate coke, is separated then the metals are selectively precipitated and a maturing phase under oxidative conditions is provided for. The residue consisting of metal hydroxides is also not thixotropic in the absence of inerts. As a result, the volume of material to be dumped has been cut in half.
Patent CA-2078748-C (CA)
Title: Screen generation for halftone screening of images using scan line segments of oversized scan lines
Inventor: LEVIEN RAPHAEL L
IPC: G03F1/00
Filed: 1992-09-21
Granted: 1997-10-21
Abstract: A halftone screen pattern generation system for computing halftone screened images with rotated screens including multiple angle and ruling combinations, including irrational tangent angles, is disclosed.  A screen pattern is generated by storing an oversized strip from an ideal angled screen pattern, and then assembling a sequence comprising selected scan line segments of the oversized strip.  Each selected scan line segment corresponds to one of a plurality of offsets of the oversized strip.  The error between the actual generated screen and ideal desired screen is computed.  Each subsequent scan line segment is selected from the plurality of scan line segments corresponding to the plurality of offsets so as to minimize the accumulated error.  In accordance with one aspect of the present invention, the measure of error between the actual generated screen and the ideal angled screen is the length of a vector in a transformed UV space between the actual screen sample point and the ideal screen sample point.  The error is determined by vector addition of the accumulated error, from scan line to scan line, which is added to the present error contribution from the offset of the present scan line.
Patent CA-2085327-C (CA)
Title: Process for the preparation of crystalline sodium disilicates
Inventor: KOTZIAN MICHAEL
IPC: C01B33/36
Filed: 1992-12-14
Granted: 1996-11-12
Abstract: To  prepare  crystalline  sodium  disilicates  having  a laminar structure, a molar ratio of SiO2 to Na2O of (1.9 to 2.1):  1 and a water content of less than 0.3% by weight,  a water glass  solution is  first obtained by reacting sand with sodium hydroxide solution in a molar ratio of SiO2 to Na2O of (2.0 to 2.3) : 1 at temperatures of 180 to 240°C and pressures of 10 to 30 bar. This water glass solution having at least 20% by weight of solids is treated in a spray drier with hot air at 200 to 300°C with the formation of a pulverulent amorphous sodium disilicate having a water content (determined as loss on heating at 700°C)  of 15 to 23% by weight and a bulk density of at least 300 g/l. The spray-dried pulverulent, amorphous sodium disilicate is ground. The ground sodium disilicate is introduced into a rotary kiln equipped with devices for moving solids, externally heated via the wall and having in its interior a plurality of different temperature zones, and is treated therein at temperatures of 400 to 800°C for 1 to 60 minutes with formation of crystalline sodium disilicate.
Patent CA-2085430-C (CA)
Title: Method of adhering colored electroplating layer on a zinc-electroplated steel article
Inventor: WU MANN Y
IPC: C25D5/18
Filed: 1992-12-15
Granted: 1999-09-28
Abstract: The present invention relates to a method of adhering a colored electroplating layer on zinc-electroplated steel articles. The method utilizes an alternating current power supply which supplies electricity of frequency of 10-120 Hz, and uses an aqueous electroplating solution which contains 150-200 g/l of silicate, 15-20 g/l of sodium hydroxide and 5-50 g/l of a metal salt. The electroplating liquid is kept at a constant temperature of 20°C - 30°C. In this method, two stages are utilized to perform the electroplating and adhere a colored electroplated layer so that the surface of the zinc-electroplated layer can adhere a blue electroplated layer. In the first stage, the electricity is applied at a constant voltage lying in the range 60-120 volts and in the second stage the electricity is applied at a constant current density in the range 20-80 Amps/dm2. Thus the aesthetics and the corrosion-resistant capability of the zinc-electroplated layer can be enhanced because of the colored electroplated layer adhered to the surface of the zinc-electroplated layer. In the method mentioned hereinabove the metal salt can be selected from cobalt salts at 5-50 g/l, manganese salts at 5-20 g/l, chromium salts at 5-15 g/l, iron salts at 2-15 g/l, and tin salts at 20-g/l so that the adhered color of the surface of the zinc-electroplated layer would be blue, brown, green, white, or grey color respectively.
Patent CA-2086557-C (CA)
Title: Loudspeaker suspension
Inventor: HOUSE WILLIAM N
IPC: H04R9/06
Filed: 1991-07-11
Granted: 1994-10-25
Abstract: A transducer comprises a diaphragm (20) including a perimeter (22), a motor (28) for causing the diaphragm (20) to vibrate in response to an electrical signal corresponding to program material to convert the electrical signal to motion of the diaphragm (20) and thus to an audio reproduction of the electrical program material signal, and a surround (24) and a frame (26) for supporting the diaphragm (20) from its perimeter (22) to permit such motion.  Additional diaphragm (20) supports (44, 46) are provided on the frame (26) and project from the frame (26) toward the diaphragm (20). Additional compliances (40) are provided on the diaphragm (20) and are coupled (52, 54) to the additional diaphragm supports (44, 46). The additional compliances (40) are located adjacent the additional diaphragm supports (44, 46).
Patent CA-2088469-C (CA)
Title: Method of and installation for purifying liquids in horizontally flown-through plant containing filter beds
Inventor: KICKUTH REINHOLD
IPC: C02F3/32
Filed: 1993-01-29
Granted: 2001-08-07
Abstract: A plant containing filter bed (1) contains a bottom gravel bed (5) below a soil matrix (6). The bottom gravel bed extends along part of a length of the filter bed (1) from an inlet (2) and is hydraulically connected thereto. Preferably the bottom gravel bed (5) extends at a downwardly directed incli-nation relative to a bottom (4) at a bottom slope in the range of 1% to 5%. Due to the length (L) of the bottom gravel bed (5) the hydraulic gradient and thereby the throughflow through the soil matrix (6) is internally set, i.e. within the soil matrix (6) in adaptation to an infiltration cross-sectional area (7).
Patent CA-2089091-C (CA)
Title: Clamping device for magnetostrictive bodies
Inventor: KIESEWETTER LOTHAR ERIK
IPC: H01L41/12
Filed: 1990-08-08
Granted: 1997-03-25
Abstract: The invention relates to an elastic clamping device for at least one body with magnetostrictive properties, wherein a pressure means presses said clamping device against the inner magnetostrictive body with a predetermined force. The pressure force extends in the direction of contraction and perpendicular to the direction of expansion both caused by the influence of a magnetic field on the magnetostrictive body and results in a prestress acting in the direction of contraction in the magnetostrictive body. The predetermined pressure from the pressure means exerted on the clamping device and thus on the magnetostrictive body is adjustable by means of a resilient force or mechanical setting means.
Patent CA-2099505-C (CA)
Inventor: NELSON TERENCE JOHN
IPC: H04N7/15
Filed: 1992-01-13
Granted: 1997-03-04
Abstract: Apparatus (500) establishes eye contact between communicating parties during video conferencing and comprises mirrors, polarizers and a camera which are positioned such that the apparatus protrudes a minimal distance from the terminal screen (125). A first polarizer (511) located in front of the terminal screen passes a polarization of the image of the distant party radiated from the terminal screen. A first mirror (521), which is partially silvered, reflects the image of the local party and transmits the image of the distant party. The reflected image of the local party is directed toward a second mirror (522) located below the first mirror. The second mirror is positioned to capture the image of the local party from the first mirror and to reflect this image into a miniature camera (530). A second polarizer (512) is located between the second mirror and the camera is cross-polarized with the first polarizer.
Patent CA-2099720-C (CA)
Inventor: OLYNYK KIRK O
IPC: G06F17/17
Filed: 1993-06-29
Granted: 1999-04-06
Abstract: A high speed and memory efficient method and system for determining with a computer when a curve defined by a set of Bézier control points is sufficiently approximated by a line segment so that the reduction of the Bézier curve into smaller curves can stop. The method is readily implemented on a computer using vectors formed using vector addition and subtraction and is applicable to Bézier curves of any order.
Patent CA-2101742-C (CA)
Title: Biodegradable polymer blends for drug delivery
Inventor: DOMB ABRAHAM J
IPC: C08L101/16
Filed: 1992-01-31
Granted: 2005-04-12
Abstract: Blends of polymers having properties distinct from the individual polymer components, and that are suitable for use as carriers of pharmaceutically active agents, are prepared from two or more polyanhydrides, polyesters or mixtures of polyanhydrides and polyesters. The blends have different properties than the polymers used to prepare the blends, providing a means for altering the characteristics of a polymeric matrix without altering the chemical structure of the component polymers. Blends of various polyanhydrides, polyesters, and polyanhydrides and polyesters, containing pharmaceutically active agents, are prepared using solvent mixing or melt-mixing procedures. It has been discovered that the rate of release of the agent from the blends is different than the rate of release from the individual polyanhydride and polyester polymer components, being a function of the blend composition.
Patent CA-2105788-C (CA)
Inventor: DEWILLE NORMANELLA TORRES
IPC: A23L29/10
Filed: 1993-09-08
Granted: 1999-01-05
Abstract: A liquid enteral nutritional product contains a protein system of, by weight, about 50-90% of a soy protein hydrolysate having a degree of hydrolysis in the range of 14 to 17 and not more than 50% of one or more intact protein sources. The nutritional product may also contain an emulsifier, lota carrageenan and Kappa carrageenan.
Patent CA-2107260-C (CA)
Inventor: SALETTA GARY FRANCIS
IPC: H02H3/04
Filed: 1993-09-29
Granted: 2005-05-24
Abstract: A microprocessor based switch such as a circuit breaker generates digital rms representations of analog load currents from n samples of the analog currents per cycle synchronized to the line frequency, where n is an odd integer equal to a selected highest order harmonic to be detected plus 2. A routine determines whether the power system is 50 or 60 Hz, and automatically sets the sampling interval to provide exactly n samples per cycle for the connected source. Terminals for rapidly resetting an analog trip memory for calibration and field testing of a long delay trip are hidden behind a removable rating plug.
Patent CA-2112021-C (CA)
Title: Polypropylene composition
Inventor: YAMAGUCHI MASAYOSHI
IPC: C08L23/00
Filed: 1993-12-21
Granted: 2001-03-13
Abstract: Disclosed are a polypropylene composition comprising 95 - 55 parts by weight of polypropylene (A) and 5 - 95 parts by weight of an ethylene/1-butene random copolymer (B-1) which contains constituent units derived from 1-butene in an amount of 15 to 25 % by mol; and a polypropylene composition comprising 95 - 55 parts by weight of polypropylene (A) and 5 - 45 parts by weight of an ethylene/1-octene random copolymer (B-2) which contains constituent units derived from 1-octene in an amount of 8 to 20 % by mol. Each of the random copolymers (B-1) and (B-2) has an intrinsic viscosity [~] of 1.5 to 3.5 dl/g as measured in decalin, a glass transition temperature (Tg) of not higher than -50°C, a crystallinity of less than 20 % as measured by X-ray diffractometry, a randomness parameter (B value) of 1.0 to 1.4 as measured by 13C-NMR spectroscopy.      With respect to a melting point as measured by a differential scanning calorimeter (DSC) as the main peak, the copolymer (B-1) has a value of not higher than 60 °C, while the copolymer (B-2) has a value of not higher than 80 °C .
Patent CA-2112545-C (CA)
Inventor: WALSH PATRICK NOEL
IPC: C23C4/04
Filed: 1993-12-29
Granted: 2000-04-18
Abstract: ARTICLE WITH WEAR RESISTANT COATING AND METHOD                 Abstract of the Invention An article having a wear and corrosion resistant coating is formed by blending a powder formulation having a metal carbide-metal binder component and a nickel base boron containing alloy component, depositing the blend on the body of the article by a method capable of producing a coating with an as-deposited porosity of less than 5% and a boron content of 1.3 to 3.0 wt % of the whole coating, and heat-treating the coated article to achieve in the coating a microhardness above 900 kg/mm2 HV.3 and the elimination of all interconnected porosity.  The coating will sustain oil quenching without cracking.
Patent CA-2113623-C (CA)
Inventor: BURKE JOHN T
IPC: A61K31/4375
Filed: 1992-07-09
Granted: 2006-10-10
Abstract: The present invention is directed to the use of esters of hexahydro-8-hydroxy-2,6-methano-2H-quinolizin-3(4H)-one and hesahydro-8-hydroxy-2,6-methano-2H-quinolizines in the manufacture of a medicament for producing an orexigenic effect.
Patent CA-2116893-C (CA)
Inventor: LOBEN RUDY E
IPC: B65H31/32
Filed: 1994-03-03
Granted: 2002-09-03
Abstract: A reciprocating table has a cam follower in the nature of an elongate slot extending transversely of the reciprocating path of the table. This slot receives a cam which is eccentrically mounted on a cam support wheel. The angular position of the cam support wheel is monitored by a rotary encoder and the cam wheel is driven by a bi-directional motor under microprocessor control. The microprocessor controls the motion of the cam such that an angular quadrant centred about the position of the cam defining the most extended position of the table is not used since the table is relatively insensitive to the motion of the cam within this quadrant. In contrast, the opposite quadrant extending about the most retracted position of the table is utilized so that the cam may be moved quickly to retract the table and yet the table is naturally decelerated.
Patent CA-2128143-C (CA)
Inventor: DEKUMBIS ROGER
IPC: F01N13/02
Filed: 1994-07-15
Granted: 1999-04-20
Abstract: The exhaust gas catalytic converter (1) with an ordered substrate structure (10) for catalysing material comprises layers (13) with parallel channels. The layers are substantially parallel to the direction (15) of main flow of the exhaust gas. The cross-sectional surfaces of the substrate structure along the direction of main flow has, according to the invention, at least partly variable area and/or variable shape; the channels make with the direction of main flow and angle between about 10° and 70° and the channels in adjacent layers are open towards each other and cross each other. The exhaust gas catalytic converter according to the invention enables its shape to be adapted to the conditions of small space.
Patent CA-2131874-C (CA)
Title: Diagnostic reagents for the detection of antibodies to ebv
Inventor: MIDDELDORP JAAP MICHIEL
IPC: C12N15/38
Filed: 1994-09-12
Granted: 2006-03-28
Abstract: The present invention is directed to diagnostic reagents for the detection of antibodies against the Epstein Barr Virus and a method for the detection of antibodies to the Epstein Barr Virus in a sample.      The diagnostic reagents according to the invention comprise a combination of at least part of an Epstein Barr viral structural protein, preferably a Epstein Barr VCA-protein or an Epstein Barr MA protein, and at least part of an Epstein Barr EBNA protein. Preferably, the VCA-protein is VCA-p18 protein, the MA-protein is MA-gp350/220 protein and the EBNA-protein is EBNA-1 protein.      It has been found that the combination of a VCA-protein or a MA-protein, and an EBNA protein, into a single diagnostic assay yields an EBV-antibody detection method with greater sensitivity and accuracy than current methods.
Patent CA-2132762-C (CA)
Inventor: STROHACKER OSCAR C
IPC: G06T9/00
Filed: 1994-09-23
Granted: 1999-11-09
Abstract: An apparatus for compressing data including apparatus for using a received data element as an address to a location in a memory, an apparatus for determining whether the addressed memory location contains a first record of a first matching data element, and an apparatus for generating a pointer to the first matching data element. In addition, a method for compressing data including the steps of using a received data element as an address to a location in a memory, determining whether the addressed memory location contains a first record of a first matching data element, and generating a pointer to the first matching data element.