baber/WOPTO huggingface dataset:
Patent CA-2030042-C (CA)
Title: Apparatus to remove acid gases from a flue gas
Inventor: NEWMAN DAVID B
IPC: B01D53/18
Filed: 1990-11-15
Granted: 2000-02-08
Abstract: Apparatus and method to remove acid gases from a flue gas containing sulphur dioxide and oxides of nitrogen. The apparatus includes a heat exchanger to reduce incoming flue gas temperatures. An oxidation chamber receives gases from the heat exchanger and oxidises the oxide of sulphur and nitrogen in the flue gases to the highest valency state. A reaction tower receives gases from the oxidizing chamber. The reaction tower includes a reaction surface. There is a first inlet for gas adjacent the base of the reaction tower and a second inlet for a basic compound in the reaction tower, above the first inlet. This arrangement allows counter-current flow of the gas and the basic compound to enable scrubbing of the gas. There is an outlet for scrubbed gases and an outlet for liquids at the tower base.
Patent CA-2030306-C (CA)
Title: Detergent composition
Inventor: FAIRCLOUGH COLIN S
IPC: C11D11/00
Filed: 1990-11-20
Granted: 1998-12-22
Abstract: A detergent composition has a high (~ 30%) content of anionic detergent yet has acceptable physical properties for use as part or all of a retail product.  The anionic detergent is mixed with a particulate filler which has high oil absorbency. The filler is intimately distributed within the particles of the composition.
Patent CA-2035543-C (CA)
Title: Fuel oil additive and fuel oil additive composition
Inventor: HASHIMOTO JIRO
IPC: C10L1/22
Filed: 1991-02-01
Granted: 2002-05-28
Abstract: A fuel oil composition comprises fuel oil and 0.1 to 50,000 ppm of an additive having the formula:        R-O-(AO)m-(C3H6NH)nH        (I) (in which R is a hydrocarbyl radical having 10 to 50 carbon atoms, A is an alkylene group having 2 to 6 carbon atoms, m is an integer of 10 to 50 and n is an integer of 1 to 3). The fuel oil has an improved cleaning property.
Patent CA-2040905-C (CA)
Title: Carbohydrate derivatives comprising a trisaccharide unit
Inventor: VAN BOECKEL CONSTANT A A
IPC: C07H15/04
Filed: 1991-04-22
Granted: 2001-11-20
Abstract: Carbohydrate derivatives comprising a trisaccharide unit having the general formula I   (see formula I) in which R is alkyl, aryl, or aralkyl:    Q is alkyl, aryl, aralkyl, or SO3-:      A and B are independently selected from hydrogen, alkyl, aryl, aralkyl, or a carbohydrate group; and the charged moieties are compensated by counter-ions.      The carbohydrate derivatives of this invention possess anti-thrombotic activity, and especially they have potent anti-X a activity without activating thrombin via anti-thrombin-III (AT-III) and smooth muscle cell proli-feration inhibiting activity.
Patent CA-2043527-C (CA)
Inventor: DELLA VALLE FRANCESCO
IPC: A61F2/10
Filed: 1991-05-30
Granted: 2003-12-16
Abstract: The invention relates to biocompatible membranes constructed of materials of natural, synthetic or semisynthetic origin, and having a thickness of between 10 and 500 µm,characterised by containing an ordered series of holes of a constant size between 10 and 1000 µm, separated from each other by a constant distance of between 50 and 1000 µm,and obtained by perforation by mechanical, thermal laser or ultraviolet radiation means, they being suitable for use as a support for the in vitro growth of epithelial cells, the invention also relating to the artificial skin obtained thereby and its use in grafts.
Patent CA-2047817-C (CA)
Title: Sign apparatus with insertable directional arrow
Inventor: JOHNSTONE ROBERT M
IPC: G09F13/04
Filed: 1991-07-24
Granted: 1995-04-04
Abstract: A removable and reinsertible arrow cover for a sign stencil.          The cover is equipped with an edge bevel, a tongue and an edge  snap rail  positioned  remotely  of  the  tongue  to facilitate snap action insertion and removal as well as a snug, flush fit which provides a closed seal to the passage of light with an arrow shaped void in the stencil. - -
Patent CA-2049006-C (CA)
Title: System for joining webs of material
Inventor: SCHOENMEIER HERBERT
IPC: B65H19/18
Filed: 1990-03-06
Granted: 1995-07-11
Abstract: A system for joining the end of a web of material (4) running off a first winding roll (17) with the beginning of a web on a new winding roll (1) interchanged with the first winding roll (17) on an unwinding machine comprising devices for cutting through the web (4) being wound off, for holding the end of the web so produced, and for pressing the end of the web against the periphery of an interchanged new winding roll (1), in order to produce an adhesive bond, has a splice element (6) which can be placed on the web being wound off (4), moved beyond the region of a full winding roll (1) and pressed against its periphery.  The splice element (6) contains a web cutting element (15) and a holding element (16) which, when placed in contact with the web being wound off (4), is located behind the web-cutting element (15) in the direction of motion of the web.
Patent CA-2054315-C (CA)
Title: Railroad rail signal receiver
Inventor: DARROW JOHN O G
IPC: B61L1/18
Filed: 1991-10-28
Granted: 1998-01-20
Abstract: A receiver for use in receipt of signals on railroad rails which converts the rail signal to a higher frequency and feeds the higher frequency signal into an input transformer.  The secondary of the input transformer is in a tuned circuit which is resonate at the higher frequency and which contains a winding of an output transformer.  The tuned circuit can be tuned to the higher frequency by series components such as a resistor and capacitor.
Patent CA-2058409-C (CA)
Title: Intraocular lens and hot stamping method of manufacture
Inventor: FOGARTY TERRY M
IPC: B29D11/02
Filed: 1991-12-23
Granted: 2002-03-05
Abstract: A method for manufacturing an intraocular lens from a cell cast sheet of high molecular weight polymethylmethracrylate (PMMA). A lens blank 30 having a lens generation area 31 with a surface contoured to correspond to the desired contour of the finished lens 10 is machined from the sheet of PMMA to a predetermined precompensated size larger than desired to accommodate normalizing shrinkage. The lens blank 30 is normalized by heating the blank in a vacuum oven. The vacuum is released from the oven by introducing dry nitrogen. A stamping die 54 is provided. An optical embossing surface 56 of the stamping die is contoured as a physical negative of the lens generation area 31 and bears a physical negative of the desired optical surface structure of the lens, such as a multifocal diffractive zone plate 18. The embossing surface 56 of the stamping die 54 is forced into engagement with the surface of the lens blank 30 at a predetermined stamping pressure and for a predetermined stamping dwell time. Sufficient heat or ultrasonic energy is applied to the lens generation area 31 of the lens blank 30 to heat the lens generation area to a temperature between the glass transition temperature and the melt temperature of the polymer, and emboss the surface structure onto the lens generation area, The embossing surface 56 of the stamping die 54 is removed from the lens blank 30 following the expiration of the stamping dwell time.
Patent CA-2059147-C (CA)
Title: Method of controlling recording apparatus
Inventor: SUZUKI HIROYUKI
IPC: B41J11/70
Filed: 1992-01-10
Granted: 1996-12-03
Abstract: A control method which is applied to a recording apparatus for recording picture information on a record-ing paper with use of a thermal recording head.  The control method comprises a first step of feeding the recording paper upstream of a wait position and a second step of, following the first step, feeding the recording paper downstream to move the thermal recording head to a downstream limit position, thereby preventing any move-ment of the thermal recording head during recording operation.
Patent CA-2059270-C (CA)
Title: X-ray cassettes
Inventor: KEENE FRANK W JR
IPC: G03B42/04
Filed: 1990-06-19
Granted: 1994-11-08
Abstract: A cassette for holding sheet film during exposure to x-radiation includes first and second hingedly connected panels. Both panels are curved substantially cylindrically when in the open condition, with the axes of the cylinders parallel to the hinge line and with the convexities facing one another. One of the panels is formed of carbon fiber reinforced plastics material and addi-tionally, in some regions, deviates from the cylindrical by being curved towards the other panel, when in the open condition. Thus, while the cylindrical curvature is convex towards the other panel the regions of curvature out of the cylindrical exhibit some concavity towards the other panel. Such a panel improves the contact of the intensifying screens with the film and also the integri-ty of the light seal at the periphery of the cassette.
Patent CA-2069169-C (CA)
Title: Microdispersions of hydroxamated polymers
Inventor: HEITNER HOWARD I
IPC: C01F7/0653
Filed: 1992-05-21
Granted: 2003-09-16
Abstract: Stable, water-in-oil microdispersions compris-ing a continuous phase of an oil and an emulsifier and a discontinuous phase of an aquaeous solution of a hydroxamated polymer are disclosed. Also disclosed is a method for the production of the above-described microdispersions wherein neutralized hydroxylamine and excess base are reacted with a microdispersion of the polymer.
Patent CA-2080927-C (CA)
Title: Padded chain drive for roller conveyors
Inventor: WIGGERS DENNIS
IPC: B65G13/07
Filed: 1992-10-19
Granted: 2004-02-24
Abstract: A load supporting conveyor having live rollers (15) forming a load conveying path in which the rollers (15) are driven by a chain (30) having horizontally placed links (31, 32) and vertically positioned rollers (33) with vertical axles (34) that project upwardly toward the live rollers (15) to be engaged by a flexible pad (36) substantially aligned with the drive chain (30) and an aperture pattern formed in the pad (36) to establish a series of apertures (37) that have a tight fit with certain ones of the vertical axle projections (34) and a series of other apertures (38) that have a loose fit with a like series of vertical axle projections (34).
Patent CA-2083475-C (CA)
Title: Derivatives of ethanolamine, their preparation, and the pharmaceutical compositions containing them
Inventor: WIERZBICKI MICHEL
IPC: A61K31/24
Filed: 1992-11-20
Granted: 1998-09-08
Abstract: New ethanolamine benzoate derivatives, which can be used as medicaments and which correspond to the formula: 
<IMAGE>
 in which R is as defined in the description, in the racemic and enantiomeric forms. 
<??>These new derivatives and their physiologically tolerable salts can be used in therapeutics, especially for the treatment of syndrome X, combining intolerance to glucose, hyperinsulinemia, dyslipemia and hypertension, and for the treatment of hypertension in insulin-resistant subjects or those having one or a number of metabolic abnormalities.
Patent CA-2096389-C (CA)
Title: Analysis of samples by capillary electrophoretic immunosubtraction
Inventor: LIU CHENG-MING
IPC: G01N33/561
Filed: 1993-05-17
Granted: 2002-07-09
Abstract: Disclosed herein are methodologies for the Capillary Electrophoretic Immunosubtraction ("CEI") of samples. In a preferred embodiment, CEI of a sample comprising constituent parts to be separated comprises tare steps of: (1) separating a first aliquot of the sample into constituent parts by capillary electrophoretic techniques, and detecting said parts; (2) admixing a second aliquot of said sample with at least one specific binding partner to a constituent of said sample, said specific binding partner capable of being substantially removed from said aliquot; (3) separating said second aliquot into constituent parts by capillary electrophoretic techniques and detecting said parts; and (4) comparing the separated constituent parts of step (3) with the separated constituent parts of step (1).
Patent CA-2096710-C (CA)
Title: Connector for armored electrical cable
Inventor: NATTEL WILLIAM
IPC: H01R13/658
Filed: 1993-05-20
Granted: 2000-08-08
Abstract: A connector for an armored cable includes a connector body and a cap. A generally longitudinal opening extends through the connector. An electrically conductive spring, a ring washer and an O-ring may be positioned inside the cap. When the container body and cap are compressively engaged, beveled surfaces on the connector body and rang washer compress the spring against the cable that has been inserted into the connector, thereby mechanically and electrically connecting the cable and the connector body. Another beveled surface on the ring washer simultaneously compresses the O-ring against the cable and against the cap to provide a dust-tight and watertight seal between the cable and the connector.
Patent CA-2096876-C (CA)
Inventor: SCHAFF KENNETH NICHOLAS
IPC: H04L12/56
Filed: 1993-05-25
Granted: 1997-09-30
Abstract: In a system for enforcing the validity of circulating pointers, one or more target pointers are generated and compared to circulating pointers. If a pointer does not circulate through the system within a prespecified time, then a pointer has been lost and an error is reported. If a circulating pointer matches a target pointer, it is suppressed by being removed from the set of circulating pointers. Another timer is then set to determine whether further circulating pointers match a target pointer. If so, then multiple pointers to the same location are present and all duplicatepointers are suppressed. After expiration of the second time, the target pointers are added to the set of circulation pointers. This process repeats with new target pointers, so that the validity of the set of the set of circulating pointers is verified.
Patent CA-2111414-C (CA)
Inventor: OSBORNE WILLIAM S
IPC: B41J2/18
Filed: 1993-12-14
Granted: 2004-09-21
Abstract: Tubeless printhead-priming cap (12) and system (10) for ink jet printers are described. The system (10) is preferably implemented, using the existing printer carriage (18) drive motor, by the use of a printhead-sealing cap (12) having a rolling diaphragm in a lower region thereof that defines a chamber (20) within the priming cap (12), with the diaphragm being reciprocated, by a spring-returned lever (26) having a piston (22) on one end thereof, in synchronism with lateral and differential vertical movement of a cap-carrying sled (14). Priming is performed uni-directionally to avoid reverse priming of the printhead (16). The chamber (20) may be emptied by reversing the operation of the priming cap (12) to pump accumulated ink into a blotter (36) by positioning the priming cap (12) against an ink blotter (36) provided in a rotatable member (30) defining a multi-service station.
Patent CA-2111480-C (CA)
Inventor: GARG DIWAKAR
IPC: C01B21/04
Filed: 1993-12-15
Granted: 1997-02-25
Abstract: An improved process for deoxygenating non-cryogenically produced nitrogen with a hydrocarbon is disclosed. According to the process, non-cryogenically produced nitrogen stream containing residual oxygen impurity is 1) pre-heated, 2) mixed with a hydrocarbon, and 3) passed through a reactor packed with a platinum group of metal catalyst to reduce oxygen to very low levels by converting it to a mixture of carbon dioxide and moisture. The reactor effluent stream is optionally treated downstream to produce a nitrogen stream substantially free of moisture and carbon dioxide. The key features of the disclosed process include 1) pre-heating non-cryogenically produced nitrogen containing residual oxygen to a certain minimum temperature, 2) adding more than stoichiometric amount of a hydrocarbon to the pre-heated nitrogen stream, and 3) using a platinum group of metal catalyst to initiate and sustain the reaction between oxygen and hydrocarbon.
Patent CA-2115891-C (CA)
Inventor: JANELLO THOMAS A
IPC: B60C9/09
Filed: 1994-02-17
Granted: 1998-04-28
Abstract: A pneumatic tire (10) is provided, comprising a substantially toroidal carcass cord layer applied to an inner liner (20), a tread portion (28) surrounding a circumferential portion of the carcass cord layer and including at least one reinforcement belt (30), a left sidewall portion (16)  surrounding a left side of the carcass cord layer and extending from a left side of the tread portion (28), and a right sidewall portion (18) surrounding a right side of the carcass cord layer and extending from a right side of the tread portion (28). Left and right bead portions (40) extend from the left and right sidewall portions (16, 18), respectively, each of the bead portions including a reinforcing bead (34, 36).   Substantially flexible protective barriers (10, 12) are disposed (i) intermediate the left side of the carcass cord layer and the left sidewall portion (16) and (ii) intermediate the right side of the carcass cord layer  and the  right  sidewall  portion  (18),  the protective barriers  (10,  12)  located a predetermined distance from the reinforcement belt (30) so as not to be  overlapped  by  the  reinforcement  belt.     The substantially flexible protective barriers (10, 12) are comprised of a fabric material such as nylon, rayon, polyester  or  Aralon~.    The  carcass  cord  layer  is oriented with respect to the protective barriers (10, 12) so that cords in the carcass cord layer and cords in the protective barrier fabric material form an angle of between three and forty-five degrees.
Patent CA-2116308-C (CA)
Title: Packet switching system
Inventor: ARAMAKI TOSHIYA
IPC: H04L47/43
Filed: 1994-02-22
Granted: 1999-10-12
Abstract: A packet switching system includes a plurality of incoming channels, through which packets arrive. The system has a circuit providing arrival time information for header information of respective packets. The arrival time information is then copied by a copying circuit. The copied information is accumulated in an arrival time information accumulating circuit in an order of the arrival time. On the other hand, the packet is accumulated by a packet accumulating circuit in an order of the arrival time. A control circuit is adapted to output the packets accumulated in the packet accumulating circuit and having the arrival time information consistent with the arrival time information accumulated at the leading end of the arrival time information accumulating circuit. The packets are output from the packet accumulating circuit according to destinations contained in the header information thereof through a plurality of outgoing channels for feeding out the routed packets.
Patent CA-2117482-C (CA)
Title: New ketonic ester reductases, its preparation and use for enzymatic redox reactions
Inventor: KULA MARIA-REGINA
IPC: C12R1/01
Filed: 1993-03-05
Granted: 2005-02-15
Abstract: An enzyme designated as ketonic ester reductase capable of being used in the NADH-dependent enzymatic reaction of .beta.. y and .delta. ketonic acid esters into the corresponding optically active .beta., y and .delta. hydroxycarboxylic acid esters can he isolated from strains of Candida parapsilosis. Yarrowinia cellobiosa, Rhodococcus erythropolis or Pseudomonas acidovorans, preferably cultivated on a long-chain alkane and/or alkane acid-containing culture medium, appropriately in the presence of an inductor. An usable enzyme preparation can be recovered by fractionated PEG-precipitation from the cell raw extract; high specific activities (for example 1855 U/mg) may then be obtained by chromatographic purification.  The enzyme is characterized by a wide substrate spectrum. Not only (possibly substituted) so-called ketonic esters are accepted, but also a number of other oxo-compounds, among which diketones, (possibly substituted, in particular halogenated) aliphatic, alicyclic and aromatic ketones, as well as ketoacetals and aldehydes. The S-enamiomer-forming reduction is supplemented by the possibility to recover R-enanuomers from racemates by oxidizing the S-enantiomer and separating the oxo-compound.
Patent CA-2122993-C (CA)
Inventor: KOCH JEAN
IPC: B60S1/34
Filed: 1994-02-18
Granted: 1996-10-01
Abstract: A spring including helical portion (1) with an open U-shaped hook (6, 8, 10 and 7, 11, 2) at each end. The helical portion (1) is formed in the region of the pivot (9) of the wiper support arm (3) at the base portion (4) retaining said support arm (3). One hook (7, 11, 2) extends over and is hooked under the support arm (3) while the other hook (6, 8, 10) extends under and is hooked over the base portion (4). The spring substantially increases the pressure exerted on the windscreen by the rubber wiper blade and remains correctly hooked even when the support arm (3) is pivoted away from the windscreen.
Patent CA-2125471-C (CA)
Inventor: OKU HIROSHI
IPC: G03D13/00
Filed: 1994-06-08
Granted: 1999-04-13
Abstract: A paper magazine is proposed which is capable of feeding and rewinding a web of paper automatically without forming any indentation or causing meandering.    A pair of press rollers and a paper detection roller are provided on a feed path extending from the core of a paper roll in the paper magazine case to the paper outlet.          Also, the cam plate and the engaging roller are provided to control the movement of the press rollers toward and away from each other according to the position of the paper detection roller.  The transmission of driving force to the core of the paper roll and the press rollers is changed over according to the position of the paper detection roller.  The press rollers are pressed against the paper only when feeding and rewinding it.
Patent CA-2136853-C (CA)
Title: Polyol ester lubricants for refrigerator compressors operating at high temperatures
Inventor: SCHNUR NICHOLAS E
IPC: C10N20/02
Filed: 1993-05-27
Granted: 2004-04-20
Abstract: A high quality lubricant for compressors operated during at least part of their compression cycle at temperatures above normal human comfort temperatures, such as most automotive air conditioners, especially those using chlorine free hydrofluoro-carbon refrigerant working fluids, is provided by mixed esters of hindered polyols, most desirably pentaerythritol, with a mixture of carboxylic acids including at least some iso-pentanoic acid along with either or both of iso-nonanoic acid and dibasic acids such as adipic.
Patent CA-2142924-C (CA)
Title: Steam-turbine power plant and steam turbine
Inventor: SHIGA MASAO
IPC: B23K35/00
Filed: 1995-02-20
Granted: 2003-01-28
Abstract: A steam turbine in which principal components to be exposed to high temperatures are all made of ferritic steel, whereby the temperatures of main steam and reheat steam can be increased to 610 - 660 (°C). The rotor shaft (23 in Fig. 1) of the steam turbine is made of ferritic forged steel whose 100,000-hour creep rupture strength is at least 15 (kg/mm2) at the service temperature of the rotor shaft. Likewise, the casing (18) is made of ferritic cast steel whose 100,000-hour creep rupture strength is at least 10 (kg/mm2). The steam turbine of high thermal efficiency can be applied to a steam- turbine power plant.
Patent CA-2146262-C (CA)
Title: Poignee pour matelas
Inventor: WARD JAMES T
IPC: A47C31/08
Filed: 1993-08-05
Granted: 1997-10-28
Abstract: Système de poignée (2) conçu pour être utilisé avec un matelas (4), le type de matelas en question étant muni d'un cadre avec des ressorts à boudin (6) et des éléments en forme de tiges qui traversent ces ressorts à boudin placés sous le revêtement en tissu et avec des oeillets  (16) dans le revêtement pour y passer la poignée.  Ce système de poignée (2) comporte un élément en forme de courroie que l'on peut saisir avec la main (14), qui se déploie le long de la surface extérieure du revêtement et qui est muni d'une paire de sections d'extrémité (20, 22) avoisinant respectivement une paire d'oeillets (16) du revêtement.  Chaque section d'extrémité comporte un élément de connexion allongé (24, 26) qui y est solidement fixé et qui est conçu pour pouvoir passer à travers un oeillet (16) contigu, chacun de ces éléments de connexion (24, 26) comportant une section de connexion située à son extrémité (28) et courant parallèlement aux ressorts à boudin (6).  Cette section de connexion (28) comprend une fente longitudinale (30) et une ouverture (32) conduisant à cette fente