baber/WOPTO huggingface dataset:
Patent CA-2105220-C (CA)
Inventor: KING BRIAN L
IPC: A47J31/40
Filed: 1993-08-31
Granted: 1997-11-04
Abstract: Apparatus for brewing coffee, tea and other beverages which consists of a lower and upper chamber which move relative to one another. The upper chamber allows the mixing of the coffee and water. The lower chamber has a filter element at the top which allows the coffee liquid to move from the upper chamber to the lower chamber while leaving the residue on the filter element. A piston in the lower chamber forces air through the water and coffee to agitate it and then sucks the coffee liquid through the filter element into the lower chamber. The coffee liquid then exits the lower chamber through an opening in the lower chamber and goes into a cup. The upper chamber then raises and separates from the lower chamber and a wiper blade which is connected to the upper chamber cleans the filter element and pushes the coffee grounds into a residue container.
Patent CA-2109002-C (CA)
Title: Method and apparatus for verifying a container code
Inventor: KANKANHALLI ATREYI MOHAN
IPC: G06V30/194
Filed: 1993-10-22
Granted: 2001-09-04
Abstract: An apparatus and method for verifying a code displayed on a container surface against a target code, the method comprising the steps of: capturing an image of the container surface carrying the displayed code; digitising the captured image to form a pixel array in which each pixel in the array has a respective quantisation level; scanning the pixel array to detect potential characters; selecting and grouping together potential characters of the displayed code; determining from the pixel values of the potential characters a set of recognised characters constituting a recognised code; comparing the target code with the recognised code; and either verifying or rejecting the recognised code in dependence upon the results of the comparison between the target code and the recognised code.
Patent CA-2109700-C (CA)
Title: Electromagnetic actuator
Inventor: STUART KEITH O
IPC: B60G17/015
Filed: 1993-03-16
Granted: 1998-03-24
Abstract: An electromagnetic actuator (50) includes a magnetic flux conductive case (52), an electric coil (54), a magnetic flux conductive material core (56), and a pair of radially polarized magnetic flux developing elements (58, 60). A first region (80) of the core (56) traverses the coil (54) at one end and second region of the core (56) traverses the coil (54) at the other end.  A first magnetic element (58) is carried by the first region (80) and a second magnetic element (60) is carried by the second region (82) so that magnetic flux across the coil between the first region (80) and the case (52) is in a first direction, and magnetic flux across the coil between the second region and the case (52) is in a second direction.  The coil (54) is arranged so that an electrical current in the coil at one end flows in an opposite direction with respect to the direction of the current of the other end.
Patent CA-2111977-C (CA)
Title: Repositional glue stick
Inventor: SITARAMIAH GEORGE G
IPC: C09J133/06
Filed: 1992-06-11
Granted: 2003-08-19
Abstract: A repositionable adhesive composition comprising: a) at least 10 percent by weight of an infusible, non-polar organic li-quid dispersible, non-polar organic liquid insoluble, inherently tacky, elastomeric copolymer microsphere, and b) a gelling com-ponent in an amount sufficient to provide a Penetration Value of less than 40 mm is disclosed.
Patent CA-2112232-C (CA)
Title: Nucleated high contrast photographic elements containing thioether compounds to inhibit pepper fog and restrain image spread
Inventor: MACHONKIN HAROLD IHOR
IPC: G03C1/043
Filed: 1992-07-22
Granted: 1997-02-04
Abstract: Silver halide photographic elements which are capable of high contrast-development and are especially useful in the field of graphic arts have incorporated therein a hydrazine compound which functions as a nucleator, an amino compound which functions as an incorporated booster. and a thioether compound which functions to inhibit pepper fog and restrain image spread.
Patent CA-2113351-C (CA)
Title: Reversible flow chromatographic binding assay
Inventor: CLARK SCOTT M
IPC: B01L3/00
Filed: 1992-07-31
Granted: 2005-09-27
Abstract: Disclosed are devices and methods for performing an assay which determines the presence or quantity of an analyte in a fluid sample by detecting binding of the analyze to at least one immobilized analyze capture reagent and washing unbound mate-rial from the immobilized analyze capture reagent. The devices and methods involve an elongated solid phase flow matrix, includ-ing capillary channels capable of driving capillary fluid movement, and further including (i) a first region adapted for receipt of the fluid sample, (ii) a second region at which the analyze capture reagent is immobilized, (iii) a third region for application of a wash reagent capable of removing unbound substances from the second region;  and (iv) an absorbent reservoir of high volume capacity. The second region is positioned intermediate to the first region and the third region and intermediate to the absorbent reservoir and the third region. The device also includes means to detect analyze bound at the second region. The flow matrix and the regions thereof are sized and positioned to cause the fluid sample to flow initially along the elongated flow matrix in one di-rection toward and through the second region, and subsequently, the liquid reagent to flow along the elongated flow matrix in a second direction opposite the first direction, through the second region, and into the absorbent reservoir, drawing unbound sub-stances with it.
Patent CA-2115062-C (CA)
Title: Acid bath for the galvanic deposition of copper, and the use of such a bath
Inventor: DAHMS WOLFGANG
IPC: C25D7/00
Filed: 1992-07-22
Granted: 2005-11-22
Abstract: The invention is directed to an aqueous acid bath for the galvanic deposition of bright, ductile and smooth copper coats which is suitable for decorative purposes as well as for strengthening the conductors of printed circuits. It is characterized by a content of polyalkylene glycol dialkyl ether. When combined with thio compounds containing water-soluble groups, these additions produce an electrolyte with excellent stability. polymeric phenazonium compounds, polymeric nitrogen compounds and/or thio compounds containing nitrogen may also be successfully combined, in addition, depending on the desired properties.
Patent CA-2119688-C (CA)
Title: Process and device for producing a foamed product or foam made of unmodified starch
Inventor: KUSTNER FRANZ
IPC: B29C48/395
Filed: 1994-03-23
Granted: 2000-08-01
Abstract: A process and device for producing a foamed product or foam made of unmodified starch is provided in which the starch is introduced through a feed opening into a treatment chamber containing a conveying device. The conveying device conveys the starch from the feed opening in an axial direction through the treatment chamber. The conveying device has an increasing effective cross section so that by increasing the volume, or by expansion foaming and/or break down of the starch is achieved. An outlet is provided at the other end of the treatment chamber for extruding the product.
Patent CA-2120682-C (CA)
Inventor: NACSON SABATINO
IPC: G01N30/00
Filed: 1994-04-06
Granted: 1999-02-23
Abstract: Apparatus for preconcentrating trace amounts of organic vapours in a sample of air for subsequent detection, comprising a metallic substrate; a thin film of fullerenes deposited on the metallic substrate for adsorbing the organic vapours on the thin film of fullerenes, thereby preconcentrating the organic vapours; and apparatus for heating the metallic substrate to a predetermined optimum temperature for desorbing the vapours from the thin film of fullerenes to form desorbed organic vapours for subsequent detection.
Patent CA-2126844-C (CA)
Title: Poste telephonique portatif pliant
Inventor: SHIMAZAKI MAMORU
IPC: H04M1/72513
Filed: 1994-06-27
Granted: 1998-11-17
Abstract: Poste téléphonique portatif pliant permettant de commuter entre une condition de mise en attente et une condition de conversation sans avoir à enfoncer une touche de façon à éviter une erreur de fonctionnement. Une condition ouverte ou fermée d'un couvercle par rapport au corps est détectée par un interrupteur à lame situé sur le couvercle, un aimant situé sur le corps et un circuit de détection pour détecter un état de marche ou d'arrêt de l'interrupteur. Une condition de mise en attente est établie s'il est détecté que le couvercle est fermé durant la conversation. Dans la condition de mise en attente, les touches à commande manuelle sont couvertes avec le corps et ne sont pas visibles.
Patent CA-2131581-C (CA)
Inventor: KAUSCH MICHAEL
IPC: D01F6/70
Filed: 1994-09-07
Granted: 2004-07-06
Abstract: The invention relates to a spinning process, more particularly a dry spinning process, for the production of elastane fibers in which 0.8 to 2% by weight of polydimethylsiloxane with a viscosity of 50 to 300 cSt and 0.2 to 0.6% by weight of ethoxylated polydimethyl-siloxane with a viscosity of 20 to 150 cSt are added to the elastane spinning solution before it is spun.
Patent CA-2143511-C (CA)
Title: Assemblage d'outil de coupe pour une tete rotative servant a la production de copeaux
Inventor: BRISSON MAURICE
IPC: B27L11/00
Filed: 1995-02-27
Granted: 1999-03-30
Abstract: La divulgation décrit un assemblage d'outil de coupe destiné à être monté sur une tête rotative servant à la production de copeaux. Il comprend un porte-couteau constitué d'une base qui est adaptée pour être fixée à la périphérie de la tête et d'une plaque en porte-à-faux dont la section inférieure fait corps avec la base alors que la section supérieure se prolonge obliquement audessus de la base. L'arrangement en porte-à-faux de la plaque qui supporte le couteau permet l'éjection latérale, durant l'opération, des copeaux produits à partir d'une pièce solide de bois, de manière que les copeaux n'entrent pas en contact avec les assemblages successifs d'outil de coupe, durant la rotation de la tête.
Patent CA-2146883-C (CA)
Title: Apparatus for segregating and feeding fruit from a bulk supply
Inventor: KALINICH ROBERT C
IPC: B65G51/01
Filed: 1995-04-12
Granted: 2001-04-03
Abstract: Apparatus for segregating and feeding fruit onto a conveyor comprising a conveyor means for moving fruit from a bulk supply, a diverter gate movable from a position to one side of the conveyor means to a fruit intercept position, a holding bin having a funnel-shaped bottom surface positioned for receiving fruit diverted from the conveyor means, the bottom surface of the bin extending downward toward a second conveyor having a plurality of fruit receptacles, a sensor positioned for detecting the approximate quantity of fruit within the bin, and means responsive to the sensor for operating the diverter gate to intercept fruit from the first conveyor when the bin is near to empty.
Patent CA-2149423-C (CA)
Title: Process for continuous cooking of pulp
Inventor: BACKLUND AKE
IPC: D21C3/24
Filed: 1993-10-08
Granted: 2004-03-16
Abstract: The present invention relates to a digester for continuous cooking under raised pressure and temperature of fibre material in a vertical digester (1), where input of fibre material and cooking liquid takes place at the top of the digester, withdrawal of spent cooking liquor is carried out from at least one digester strainer girdle (1D) between the top and the bottom of the digester, and fibre material is fed out from the bottom (1C) of the digester, wherein an existing digester (1) is fitted with an additional di-gester strainer girdle (2) above the lowest strainer girdle (1B) of the digester so that the temperature in all the participatory coo-king zones in the digester can he kept at essentially the same temperature level.
Patent CA-2155731-C (CA)
Inventor: CHAPMAN ARTHUR S
IPC: F04B43/12
Filed: 1994-03-17
Granted: 2004-01-20
Abstract: A peristaltic pump tube holder (22A/B/C) has a body (110) having first and second pump ports extending outside of it. The pump ports extend at an acute angle to receive a flexible tubing loop (134/136) and orient the tubing loop for engagement with an external pump rotor (292).
Patent CA-2155965-C (CA)
Title: Absorbent article with multi-functional topsheet
Inventor: PERRY BRUCE FRANKLIN
IPC: A61F13/511
Filed: 1994-02-10
Granted: 1999-10-05
Abstract: An absorbent article such as a sanitary napkin having an improved topsheet that provides improved skin comfort as well as superior fluid handling characteristics. Such absorbent articles comprise a liquid pervious topsheet, a liquid impervious backsheet, and an absorbent core positioned between the topsheet and the backsheet. The topsheet has a central zone and an outer zone extending laterally outwardly from and contiguous with the central zone. The topsheet comprises an outer portion located substantially in the outer zone and a central portion located substantially in the central zone. The outer portion includes a microapertured polymeric web which exhibits a soft and silky tactile impression. The central portion includes a macroscopically-expanded, apertured formed-film for the transmission of bodily fluids deposited on the topsheet.
Patent CA-2160653-C (CA)
Title: Lamp string holding container structure
Inventor: WU GORDON K H
IPC: B65D85/42
Filed: 1995-10-16
Granted: 1998-08-25
Abstract: A lamp string holding container includes a bottom having four side panels to define a container in which inverted V-shaped ridges are provided with a plurality of lamp retaining holes spaced along the ridges to each receive therein a lamp.          The container is made of a single sheet of paperboard by cutting and folding the paper blank.
Patent CA-2162274-C (CA)
Title: Double-wall bottle and method and apparatus for molding the same
Inventor: UEHARA SHINICHI
IPC: B29C49/24
Filed: 1994-05-06
Granted: 1999-10-26
Abstract: This invention relates to a method of molding a double-wall bottle consisting of an outer bottle (12) and an inner bottle (14). An outer bottle (12) is first formed from a first preform by biaxial stretch blow molding. Afterthis molding step, a plurality of air vent holes (24) are formed in a biaxially orientated region of the outer bottle (12). Next, a second preform (70) and the outer bottle (12) are set together within a first blow cavity mold (100). Subsequently, the inner bottle (24) is formed by biaxial stretch blow molding from the second preform (70) while the air within the outer bottle (12) is expelled through the air vent holes (24). Circumferential concave ribs (22) are formed around the entire circumference of the outer bottle (12), and at least one of the air vent holes (24) is formed in a region either inside or outside the region inwhich the circumferential concave ribs are formed.
Patent CA-2163689-C (CA)
Inventor: CHAINER TIMOTHY JOSEPH
IPC: G11B21/10
Filed: 1995-11-24
Granted: 2003-02-18
Abstract: A mechanism for servowriting on a storage medium of a storage device. The storage device has a transducer and a servo loop for positioning the transducer with respect to the storage medium. At least one transition is written on a track of the storage medium, while servoing on other transitions previously recorded on the storage medium. A reference waveform is derived as a function of a closed loop response of the servo loop and a position error waveform. The position error waveform corresponds to one or more position errors of the transducer relative to the previously recorded transitions. The reference waveform is usable in writing subsequent tracks on the storage medium. Using the reference waveform for writing subsequent tracks provides a substantial rejection of mechanical disturbances by the servo loop.
Patent CA-2163814-C (CA)
Title: Molded food processing system
Inventor: CODY DANIEL J
IPC: A22C17/00
Filed: 1995-11-27
Granted: 2003-09-30
Abstract: A food processing system is provided herein. Such system includes a processing chamber, and a conveyor in the chamber for transporting a food product therethrough between a loading station and an unloading station. A plurality of openable and closable food product molds are configured to be carried by the conveyor through the chamber from the loading station to the unloading station, and then to be returned by the conveyor from the unloading station to the loading station, each mold having open and closed conditions. A plurality of biasing means is provided, each such biasing means being configured to being a respective mold to the open condition. A mold opener for opening the mold at the unloading station and a mold closer for closing the mold at the loading station are also provided.
Patent CA-2166353-C (CA)
Inventor: CHAU RAYMOND
IPC: H03K3/03
Filed: 1995-12-29
Granted: 2000-02-29
Abstract: A voltage controlled oscillator comprised of a current controlled oscillator formed of a loop of serially connected inverters, the oscillator having a primary output at an output of one of the inverters for providing a primary pulse signal and a secondary output at the output of another inverter spaced from the one inverter by an odd number of inverters for providing a secondary pulse signal which is in antiphase to the primary pulse signal, apparatus for receiving the primary and secondary pulse signals and for providing an output signal which indicates the presence of a rising or falling edge to a corresponding primary or secondary pulse signal during a transmission time delay provided by the odd number of inverters.
Patent CA-2169883-C (CA)
Title: A material and method for inhibiting bacterial growth in an aqueous medium
Inventor: BATTS GREGORY NIGEL
IPC: A01N43/80
Filed: 1996-02-20
Granted: 2000-05-02
Abstract: A biocidal material comprises an organic biocide immobilised on a polymeric support characterised in that the support is water-insoluble and the biocide is covalently bound to the support by a hydrolytically stable covalent linkage.  The material can be used for inhibiting bacterial growth in an aqueous medium e.g. the wash water of a photoprocessing system. The material can be housed in a flow-through container.
Patent CA-2170166-C (CA)
Inventor: MCFADYEN ANDREW WARREN
IPC: B63H25/12
Filed: 1996-02-23
Granted: 1999-04-27
Abstract: A lock valve apparatus and a hydraulic system incorporating a lock valve apparatus including a lock valve body with a bore, a first port, a second port, a third port and a fourth port. There is a spool valve with a valve spool reciprocatingly received in the bore. The spool valve, a first one-way valve and a second one-way valve normally prevent fluid flowing between the ports. The first one-way valve and passageways in the valve permit a fluid flow from the first port to the third port when the first port is pressurized. The second one-way valve and passageways in the spool valve body permit a fluid flow from the second port to the fourth port when the second port is pressurized. The spool valve is shifted to align passageways, including a first annular passageway, between the spool and the bore to permit a return flow of fluid from the fourth port to the second port when the first port is pressurized. The first annular passageway receives pressurized fluid from the fourth port. The spool is shifted to align passageways, including a second annular passageway, between the spool and the bore to permit a return flow of fluid from the third port to the first port when the second port is pressurized. The second annular passageways receives pressurized fluid from the third port.
Patent CA-2171052-C (CA)
Title: A tristatable output driver for use with 3.3 or 5 volt cmos logic
Inventor: HARRIS COLIN
IPC: H03K19/0175
Filed: 1996-03-05
Granted: 2001-05-15
Abstract: A tri-state output driver comprised ofa pair of complementary field effect transistors (CMOS FETs) having sources and drains connected in a series circuit between a voltage rail and ground, apparatus for applying similar logic high and low input signals to respective gates of the FETs whereby an output terminal connected in a circuit between the sources and drains of the FETs is driven toward ground or the voltage rail respectively, or opposite polarity input signals to the gates for causing the FETs to assume a high impedance, and apparatus for maintaining a voltage across the source and drain of the FET which is connected in a circuit between the voltage rail and the output terminal, at less than a lower of an FET threshold of conduction voltage or diode turn-on voltage greater than the voltage of the voltage rail, during the high impedance state, so as to maintain the latter FET in a high impedance state even when a voltage at the output terminal is equal to a voltage which is higher than an FET threshold of conduction or diode turn-on voltage greater than the voltage of the voltage rail.
Patent CA-2174703-C (CA)
Inventor: PARDIKES DENNIS G
IPC: B29B7/60
Filed: 1996-04-22
Granted: 2009-03-31
Abstract: A low cost dry polymer processing system has an inverted submersible pump with a weir mounted on top of the pump housing and over an impeller in the housing. The weir is a combination of a sleeve and a coaxial funnel with a top edge of the funnel that is level with respect to gravity. An electrolyte liquid rising in the sleeve overflows the top edge of the funnel in order to form a liquid curtain uniformly covering the inside wall of the funnel. The amount of liquid is limited so that the impeller is not hydraulically locked. Dry polymer is dropped through the funnel and into the eye of the impeller. Thereafter, the remainder of the polymer processing is carried out by any suitable means.
Patent CA-2179771-C (CA)
Title: Non-toxic mucosal adjuvant
Inventor: RAPPUOLI RINO
IPC: C07K14/245
Filed: 1994-12-22
Granted: 2001-02-20
Abstract: A non-toxic mucosal adjuvant is provided which may be admixed with further antigens to provide a vaccine administrable to mucosal surfaces in organisms including man. Preferably, the non-toxic mucosal adjuvant is a detoxified mutant of a bacterial ADP-ribosylating toxin, optionally comprising one or more amino acid additions, deletions or substitutions.
Patent CA-2180660-C (CA)
Title: Novel piperidine derivatives with paf antagonist activity
Inventor: CARCELLER ELENA
IPC: A61P1/00
Filed: 1995-09-05
Granted: 2007-04-03
Abstract: Compounds of general formula (I) and their salts and solvates are PAF antagonists and as such are useful in the treatment of various diseases or disorders mediated by PAF. Pharmaceutical compositions including these compounds and processes for their preparation are also provided.
Patent CA-2180788-C (CA)
Title: Method of use of a coating compound for liquid-fertilizer holding vessels, and liquid fertilizer
Inventor: ORR MICHAEL L
IPC: C05G3/00
Filed: 1996-07-09
Granted: 2007-01-09
Abstract: In one aspect, am anti-corrosion treatment method of reducing internal corrosion of a liquid nitrogen fertilizer holding vessel comprising providin g at least one quaternary-amine-comprising compound within the vessel. In another aspect, an anti-corrosion treatment method of reducing corrosion of a liquid nitrogen fertilizer holding vessel comprising: a) providing a substantially insoluble liquid film of a quaternary-amine-comprising compound over a volume of liqui d nitrogen fertilizer within a steel vessel; and b) coating internal sidewalk of the steel vessel with the quaternary-amine-comprising compound as the volume of liquid fertilizer increases and decreases within the vessel. In another aspect, an anti-corrosion mixture comprising: a) a liquid nitrogen fertilizer solution; and b) a quaternary-amine-comprising compound within the liquid nitrogen fertilizer solution.