baber/WOPTO huggingface dataset:
Patent CA-2101149-C (CA)
Inventor: KOPP VOLKER
IPC: B01F5/04
Filed: 1993-07-22
Granted: 2000-10-10
Abstract: A member for mixing and dispensing a two-component mass from a tool arranged to separately squeeze-out the two components. The member includes a mixing tube enclosing a coaxial tube section connected to the front end of the tool for conveying one of the components from a tool outlet to the mixing tube. Another tool outlet conveys the other component directly into the mixing tube. The tube section has a one-way valve at an outlet opening into the mixing tube. The one-way valve includes an expandable tubular sheath covering the outlet opening through the tube section. The one-way valve prevents any backflow of the mixed components from the mixing tube into the tube section. Mixed components which harden within the mixing tube form a seal or block. Accordingly, when the tool squeezing out the component is operated with a blocked or sealed mixing tube, no backflow into the tool can occur.
Patent CA-2104096-C (CA)
Title: A method of highlighting intagliations in tablets
Inventor: GILIS PAUL MARIE VICTOR
IPC: A61J3/06
Filed: 1992-02-14
Granted: 2003-06-10
Abstract: A method of highlighting intagliations in white or colored coated tablets by spraying onto said tablets a suspension com-prising a filling material having a different color, a waxy material and a solvent, and removing the solvent and the excess of fill-ing material and waxy material.
Patent CA-2104358-C (CA)
Inventor: TENDICK RICHARD CECIL
IPC: B65B13/20
Filed: 1993-08-18
Granted: 1999-02-09
Abstract: ABSTRACT OF THE DISCLOSURE    A bundling apparatus includes a upper and lower platens, at least one of which moves vertically across a plate.  The plate is preferably slightly slanted to  prevent a stack of articles on the lower platen from toppling over.  A continuous wrapping sheet is fed to the plate for wrapping the stack after compression between the platens.
Patent CA-2110811-C (CA)
Inventor: ZACHHUBER KURT
IPC: E01H1/08
Filed: 1992-06-09
Granted: 1998-12-01
Abstract: Balai mécanique comportant au moins un élément de balayage monté sur un dispositif de guidage, lequel s'ajuste pour modifier la largeur d'action de l'élément de balayage.
Patent CA-2126457-C (CA)
Title: Method and system for writing data onto a medium so as to enable subsequent verification of authenticity
Inventor: SAADA CHARLES
IPC: G06F21/10
Filed: 1993-10-27
Granted: 1998-12-22
Abstract: The process of the invention consists in recording in the accessible memory area Ac of a portable object (1), at least the information [I] and an image [I'] thereof. This image [I'] is obtained by employing a program for enciphering the information [I]. This program takes into account at least the information [I], a first datum [Ks], external to the portable object and delivered to enciphering circuits (21) under the supervision of the person recording the information, and a second datum [Sid], diversified for each portable object (1). Later certification consists in verifying that an image [I'] was obtained with the aid of the first and second data, so as thereby to deduce that the associated information [I] is original. <IMAGE>
Patent CA-2127945-C (CA)
Title: Process of producing 2-cyano-4-oxo-4h-benzopyran compounds
Inventor: HIGASHII TAKAYUKI
IPC: C07D311/24
Filed: 1994-07-12
Granted: 2007-01-09
Abstract: The present invention is directed to a process of producing a 2-cyano-4- oxo-4H-benzopyran compound of the general formula (2): (see formula II) wherein R1 and R2 are independently hydrogen, halogen, hydroxy, C1-C5 alkyl, C1-C5 alkoxy, nitro or a group of the formula RCONH wherein R is C1-C20 alkyl, phenyl, phenyl-substituted(C1-C20)alkyl, phenyl(C1-C20)alkoxyphenyl, or (C1- C20)alkoxyphenyl. This production process is characterized in that a carboxamide of the general formula (1): (see formula I) wherein R1 and R2 are each as defined above, is reacted with a dehydrating agent in the presence of a pyridine compound of the general formula (4): (see formula IV) wherein A1 and A2 are independently hydrogen or C1-C5 alkyl. If the final product cannot be obtained as crystals having good filtration properties by ordinary treatment, a novel technique as disclosed herein can provide such crystals by dissolving the reaction product in an organic solvent insoluble or slightly soluble in water; pouring the resultant solution into water; and removing the organic solvent by distillation with stirring to effect crystallization of the final product.
Patent CA-2128566-C (CA)
Title: Humidity control system
Inventor: WACKER PAUL C
IPC: G05D22/02
Filed: 1994-07-21
Granted: 2004-01-13
Abstract: A humidity control system for a space receiving conditioned air from a duct has sensors which measure the current humidity in both the space and the duct. The system calculates a duct set point based on the difference between the current space humidity and the humidity set point for the space. The system then controls the humidity of the air passing through the duct so as to both minimize the difference between the space humidity and the humidity set point for the space and to prevent the air in the duct from reaching its dew point. A special algorithm is used to compensate for lag in the duct's humidity sensor.
Patent CA-2131285-C (CA)
Inventor: BASKEYFIELD LEWIS JAMES
IPC: A61K31/47
Filed: 1993-03-10
Granted: 2004-06-29
Abstract: Non-pressurised pharmaceutical inhalation compositions comprising a therapeutically effective amount of a particulate inhalation medicament having a mass median diameter in the range 0.01 to 15 µm and a particulate polysaccharide entrapped flavouring agent having a mass median diameter in the range 10 to 200 µm.
Patent CA-2135622-C (CA)
Title: Process for making embossed metallic leafing pigments
Inventor: MEIKKA RICHARD G
IPC: C23C14/22
Filed: 1993-05-10
Granted: 2005-11-22
Abstract: A process for preparing embossed, finely-divided, thin. bright-metal particles which process comprises forming an embossed release surface (42) to at least one side of a carrier sheet (41), depositing a metal film onto the release surface so that the metal film conforms to the embossed surface, solubilizing the release surface, removing the metal film from the carrier sheet and breaking the thin metal film into embossed particles having an average diameter of between 25 to 50 microns. The film may also take the form of an optical stack.
Patent CA-2136150-C (CA)
Title: Apparatus and method for providing a secure gateway for communication and data exchanges between networks
Inventor: VU HUNG T
IPC: H04L9/32
Filed: 1994-11-18
Granted: 2007-01-30
Abstract: An apparatus and method for providing a secure firewall between a private network and a public network are disclosed. The apparatus is a gateway station having an operating system that is modified to disable communications packet forwarding, and further modified to process any communications packet having a network encapsulation address which matches the device address of the gateway station. The method includes enabling the gateway station to transparently initiate a first communications session with a client on a first network requesting a network service from a host on a second network, and a second independent communications session with the network host to which the client request was addressed. The data portion of communications packets from the first session are passed to the second session, and vice versa, by application level proxies which are passed the communications packets by the modified operating system. Data sensitivity screening is preferably performed on the data to ensure security. Only communications enabled by a security administrator are permitted. The advantage is a transparent firewall with application level security and data screening capability.
Patent CA-2138072-C (CA)
Title: Enhanced off-axis viewing performance and luminous efficiency of a liquid crystal display employing fiberoptic faceplate elements
Inventor: SILVERSTEIN LOUIS D
IPC: G02B6/08
Filed: 1994-12-14
Granted: 1999-03-16
Abstract: A transmissive, backlit color twisted-nematic or super-twisted-nematic liquid crystal display employing a front fiber-optic faceplate as a front retaining element of a liquid crystal cell that increases viewing angle between the display and a viewer while minimizing or eliminating undesirable variations in luminance, contrast ratio and chromaticity is described. This novel configuration effectively decouples the liquid crystal cell and other optical elements behind the front fiber optic faceplate from the angular orientation of the viewer with respect to the display. The liquid crystal display described in this invention further provides a high quality color display, without viewing parallax, using a color selection filter mosaic outside of the liquid crystal cell. The display also increases luminous efficiency and improves color saturation by concentrating the transmission of available backlight illumination through the use of a rear fiber-optic faceplate and a second rear-mounted mosaic of color interference filters.
Patent CA-2141906-C (CA)
Title: Process for battery recycling
Inventor: ELLIOTT KENNETH W
IPC: C22B1/24
Filed: 1995-02-06
Granted: 1998-11-17
Abstract: Household  sealed  cell  alkaline  and  zinc  carbon batteries may be recycled for use in steel making as follows.          The batteries are pulverised then run through an acidic bath to neutralize the alkaline electrolyte.   Next the materials are rinsed,  then dried  and mixed with granulated  carbon steel typically in a ratio of 5 parts battery material to 95 parts granulated  carbon  steel.    The  mixture  is  compressed  into briquettes for introduction into steel making furnaces.
Patent CA-2143429-C (CA)
Title: Polypropylene composition
Inventor: NOMURA TAKAO
IPC: C08L21/00
Filed: 1994-06-30
Granted: 1999-01-26
Abstract: The polypropylene composition of the present invention comprises polypropylene and a rubber component, and has the following characteristics that (i) the melt flow rate (MFR: 230 .degree.C, 2.16 kg load), as measured in accordance with ASTM D1238, is not less than 8 g/10 min, (ii) the flexural modulus (FM), as measured in accordance with ASTM D790, is not less than 20,000 kg/cm2, (iii) the Izod impact strength (IZ), as measured in accordance with ASTM D256, is not less than 20 kg~cm/cm, (iv) the heat deflection temperature (HDT), as measured in accordance with ASTM D648, is not lower than 135 .degree.C, (v) the dimensions of a polypropylene microcrystal in an injection molded article formed from the polypropylene composition, as measured by wide-angle X-ray diffractometry and small-angle X-ray scattering, are 5 nm - 20 nm, 5 nm - 20 nm and not less than 5 nm, respectively, ln the directions of c-axis, a-axis and b-axis, and (vi) the rubber component is present in an injection molded article formed from the polypropylene composition as a continuous phase around the polypropylene microcrystal in the direction of injection and the direction perpendicular thereto, and the average thickness of this rubber continuous phase is in the range of from 0.5 nm - 3 nm. 52 Such a polypropylene composition as described above is excellent in rigidity and heat resistance, and also in impact resistance and toughness.
Patent CA-2151459-C (CA)
Inventor: HENDRICKS JOHN S
IPC: G06F17/00
Filed: 1993-12-02
Granted: 2004-03-02
Abstract: A novel network controller (214) for use with a digital cable headend (208) capable of monitoring and controlling set top terminals (220) in a television program delivery system (200) is described. The invention elates to methods and apparatus for a network controller (214) that manages a configuration of set top terminals (220) in a program delivery system (200). The invention is particularly useful in program delivery systems (200) with hundreds of channels of programming, a menu driven program selection system, and a program control information signal that carries data and identifies available program choices. Specifically, the invention modifies a program control information signal at the cable headend (208) before the modified signal is transmitted to each set top terminal (220). This signal is used with polling methods to receive upstream data from the set top terminals (220). The invention initiates such upstream data retrieval, gathers all data received and compiles viewer demographics information and programs watched information. The invention processes this data and information to generate packages of advertisements, as well as account and billing reports, targeted towards each set top terminal (220). The invention uses upstream data reception hardware, databases and processing hardware and software to accomplish these functions.
Patent CA-2158809-C (CA)
Inventor: YAMASHITA KAZUO
IPC: H03B1/04
Filed: 1995-09-21
Granted: 2001-12-04
Abstract: A delay detection circuit and a low-noise oscillation circuit using such a delay detection circuit.  When the oscil-lation output of a VCO is to be supplied to two high frequency mixers, a .pi./2 phase shifter 24 in the front stage of one of the high frequency mixers gives a quadrature form.  High fre-quency components are removed from the output voltage of the high frequency mixers by LPF.  DC components are also removed from the output voltage of the high frequency mixers by HPF.          The output voltages of low frequency mixers contain secondary phase noise components proportional to squared phase noise components and primary phase noise components proportional to the phase noise components and also depending on the delay time ? of a delay unit.  When the output voltage of one of the low frequency mixers is subtracted from the output voltage of the other low frequency mixer, the secondary phase noise components are offset and the dependence on the delay time ? is removed from the primary phase noise components.  The resulting voltage is used as a control voltage for the VCO (10).  No voltage control delay unit or feedback loop for controlling it are required.
Patent CA-2162606-C (CA)
Title: Method for preparing erythruronolactone
Inventor: HUDLICKY TOMAS
IPC: C07D493/04
Filed: 1994-05-05
Granted: 2005-11-22
Abstract: There are described improved processes for the synthesis of a desired lactone useful as a synthon, the improved processes comprising oxidizing a protected arene diol with permanganate and periodate or subjecting a substituted epoxydiol to periodate oxidation to yield the desired lactone.   (see formula I)
Patent CA-2164988-C (CA)
Title: Tamper evidence feature for sterile port and cap system
Inventor: SZEMPRUCH WALTER T
IPC: A61J1/05
Filed: 1995-12-08
Granted: 2004-11-09
Abstract: A port and cap assembly for a solution container is provided. The port includes a tubular wall having a first end and second end, the first end securable to the container and the second end being open and opposite to the first end. An annular flange extends perpendicularly outward from the cylindrical wall between the first end and the second end to define a neck portion of the cylindrical wall. A circumferential sleeve extends longitudinally downward from the annular flange. A radial lip extends generally perpendicularly inward from the sleeve. A resilient cap is also provided which includes a first portion resiliently stretched to cover the open end of the port and a second portion removably captured between the annular flange and the radial lip. The second portion of the cap after being removed from between the annular flange and the radial lip is not recapturable between the annular flange and the radial lip so as to indicate that the port has been uncovered. A method for assembling a port and cap to a solution container is also provided.
Patent CA-2166074-C (CA)
Title: Implantable system for cell growth control
Inventor: LYLES MARK B
IPC: A61K9/22
Filed: 1994-07-01
Granted: 2005-08-23
Abstract: An implantable infection shield and system for drug delivery in vascular tissue includes a relatively non-biodegradable porous linked fibrous biomaterial which controls and directs cell growth and angiogenesis from adjacent vascular tissue into the implant. Infection shield embodiments stimulate cell growth and angiogenesis from adjacent vascular tissue which effectively blocks passage of pathogenic microorganisms along percutaneously implanted objects. In embodiments for drug delivery, a reservoir of the same biomaterial may contain either (1) a cell culture system enclosed within a porous sealable interior chamber or (2) a biodegradable matrix in which one or more drugs are dispersed. After implantation of a reservoir of the first embodiment in an organism, cultured cells obtain food and oxygen via diffusion in tissue fluid through the porous walls of the interior chamber, while metabolic products, including drugs, diffuse away from the cell culture in an analogous manner. In a reservoir of the second embodiment, a biodegradable matrix substantially fills the pores (voids), and progressive dissolution of the matrix releases one or more drugs into surrounding tissue fluid. Reservoirs of either embodiment comprise a plurality of voids of a predetermined size effective for stimulating angiogenesis from the surrounding vascular tissue into at least a portion of the reservoir. The reservoir thus acts to couple a source of drugs to the circulatory system of the organism.
Patent CA-2167466-C (CA)
Title: Method and device for compensating tension forces across the width of a moving web
Inventor: NIEMANN HEINRICH
IPC: B65H23/02
Filed: 1996-01-17
Granted: 1999-05-11
Abstract: A method and a device for compensating and equalizing the tension forces across the width of a moving web makes use of a tension compensation roll, which is pivotably supported, and rotatable around a pivotal axis.  In the presence of a difference in the tension force across the width of the moving web, the tension compensation roll is pivoted via gears with teeth to an extent such that the tension forces in both halves of the web are equalized.
Patent CA-2168013-C (CA)
Inventor: RICHARDSON HUGH WAYNE
IPC: C23F1/34
Filed: 1994-09-08
Granted: 2003-12-02
Abstract: Copper etchant solution additives (18) for use with an aqueous alkaline ammoniacal cupric chloride etching bath (12) include several compounds, each of which is shown to stabilize the copper (I) state. The compounds discovered by tbe present invention include iodid e ions such as potassium iodide, ammonium iodide, sodium iodide, calcium iodide and magnesium iodide. Other copper (I) stabilizers discover ed by the present invention include certain water soluble salts containing sulfur such as a thiocyanate ion (e.g. ammonium thiocyanate, po tassium thiocyanate, sodium thiocyanate, magnesium thiocyanate, and calcium thiocyanate) and a thiosulfate ion (e.g. ammonium thiosulfate, potassium thiosulfate, sodium thiosulfate, magnesium thiosulfate, and calcium thiosulfate). Etching rates for alkaline ammoniacal cu pric chloride with different concentrations of potassium iodide, ammonium thiocyanate, and sodium thiosulfate were studied. The results o f controlled experiments revealed that adding concentrations up to approximately 1200 mg/L of any one of these compounds to the alkali ne ammoniacal cupric chloride etchant resulted in a 20-130 % increase in etch rate.
Patent CA-2169324-C (CA)
Inventor: ZHONG SHENG-PING
IPC: C08L75/04
Filed: 1996-02-12
Granted: 2009-01-20
Abstract: A substrate such as a catheter or a guide wire is provided with a lubricous, hydrophilic abrasion-resistant coating by: a) coating said substrate with a first aqueous coating composition comprising an aqueous dispersion or emulsion of a polymer having organic acid functional groups and a polyfunctional crosslinking agent having functional groups being capable of reacting with organic acid groups, and drying the coating to obtain a substantially water-insoluble coating layer still including functional groups being reactive wit~ organic acid groups, and b) contacting the dried coating layer obtained in a) with a second aqueous coating composition comprising an aqueous solution or dispersion of a hydrophilic polymer having organic acid functional groups, and drying the combined coating, the hydrophilic polymer thereby becoming bonded to the polymer of the first coating composition through the crosslinking agent. The drying can be carried out at ambient (room) temperature.
Patent CA-2176391-C (CA)
Title: Method and apparatus for transferring information to a device in a communication system
Inventor: BONTA JEFFREY D
IPC: H04M15/00
Filed: 1995-08-25
Granted: 1999-07-27
Abstract: A smart card (100) is equipped with an internal time-of-day clock and calendar (106). Between the smart card (100) and a subscriber unit (209, 300), into which it is inserted, there is a communication of the subscriber's identity and a negotiated agreement for how long the subscriber unit (209, 300) is to maintain the transferred identity. For that duration of time, the subscriber unit (209, 300) is enabled with the subscriber's identity, and the smart card is essentially "dumb", and therefore unusable until that duration has elapsed.
Patent CA-2179299-C (CA)
Inventor: SKJAEVELAND MAGNE
IPC: F16L3/00
Filed: 1994-12-16
Granted: 1999-02-23
Abstract: A clamp having an U-shaped clamp body (1) which engages a profile such as a rectangular or square pipe (2) on three sides (3, 4, 5), while the fourth side (6) of the profile is engaged by a bolt (7) which is secured by a nut (8) and extends through conical holes (9, 10) in the free legs of the clamp body (1).  Conical washers (11, 12) on the bolt (7) engage the conical holes (9, 10) on the far side from the pipe (2), meaning that the bolt (7) is located somewhat eccentrically in the holes (9, 10).  Tightening the bolt (7) by means of the nut (8) makes the clamp body (1) squeeze the top side (3) and bottom side (4) of the pipe (2).  The conical washers (11, 12) in the conical holes (9, 10) make the bolt (7) squeeze the pipe (2) in the direction of the back side (5) of the pipe. The pipe (2) is thus squeezed from all sides, giving a strong and stable clamp connection.
Patent CA-2183250-C (CA)
Inventor: DORN CONRAD P
IPC: A61P1/08
Filed: 1995-02-28
Granted: 2006-03-21
Abstract: Substituted heterocycles of general structural for mula (I) are tachykinin receptor antagonists useful in the treatment of inflammatory diseases, pain or migraine, asthma and emesis.
Patent CA-2190180-C (CA)
Title: Use of perfluorocarbons for assisting normal breathing in mammals having lung disorders
Inventor: CLARK LELAND C JR
IPC: A61K31/025
Filed: 1995-05-12
Granted: 2000-10-03
Abstract: A method of assisting a mammal having a lung disorder to breathe ambient gas normally, i.e., without the assistance of a ventilator. The method includes providing an animal having a lung disorder, such as surfactant deficiency, stiff lung, or hyperinflated lung syndrome, and instilling a minimum effective dose of a perfluorochemical liquid or emulsion through the trachea for coating the alveolar sacs of a lung of the mammal. The preferred perfluorochemicals have a very low vapor pressure to avoid inducing hyperinflated lung syndrome and are supplied in a minimum effective dosage sufficient to coat the inner lung surfaces. The perfluorochemicals are permeable to the ambient gas and reside substantially permanently within the alveolar sacs without inducing hyperinflated lung syndrome. The liquid is instilled in an amount sufficient to enable the animal to breathe the ambient gas normally with O2/CO2 blood gas exchange. Effective coating of the lungs with a small (generally < 0.1 ml/kg) dose of very low vapor pressure perfluorochemical is achieved through administration of an aqueous emulsion of the perfluorochemical or a mixture of the very low vapor pressure compound in a larger volume of a higher vapor pressure carrier perfluorochemical.