baber/WOPTO huggingface dataset:
Patent NO-173708-C (NO)
Inventor: WELLS ALAN ARTHUR
IPC: F25B9/00
Filed: 1987-11-05
Abstract: A thermally driven gas resonance device comprises a resonance tube (3) which expands in cross-section along its length from one end to the other, a heat source (2) located at the one end of the resonance tube, and means (2, 4) to trigger oscillations in a gas in the resonance tube. The heat source (2) is preferably a pulsed heat source having a pulse repetition frequency corresponding to a resonant frequency of the gas resonance tube (3). The mechanical energy produced in the oscillating gas in the gas resonance device may be used to operate a pressure swing gas separator by including a bed (16) of molecular sieve material in the other end of the resonance tube (3). Alternatively, the mechanical energy may be used to drive a heat pump (19). In this case a heat sink (21) is located at the other end of the resonance tube (3), a regenerator (20) is also located adjacent the other end, and means (8) on the side of the regenerator (20) towards the heat source (2) effect heat exchange between the gas in the resonance tube (3) and a source of low grade heat.
Patent NO-178723-C (NO)
Inventor: WHEATLEY JOHN A
IPC: B32B7/023
Filed: 1990-06-19
Abstract: A multilayered reflective body comprises alternating layers of at least first and second polymeric materials of which layers a substantial majority have an optical thickness of not more than 0.09 micrometers or not less than 0.45 micrometers, and adjacent layers of said first and second polymeric materials differ from each other in refractive index by at least 0.03. A sufficient number of layers are present that essentially no perceived iridescence is reflected and, usually, 30 percent of non-absorbed incident light is reflected. The reflective body may be fabricated into sheets, mirrors, noncorroding metallic appearing articles and parts, reflectors, and reflective lenses.
Patent NO-172410-C (NO)
Inventor: TENGESDAL PAUL
IPC: F16K1/44
Filed: 1991-04-04
Abstract: PCT No. PCT/NO92/00051 Sec. 371 Date Sep. 24, 1993 Sec. 102(e) Date Sep. 24, 1993 PCT Filed Mar. 27, 1992 PCT Pub. No. WO92/17721 PCT Pub. Date Oct. 15, 1992.A valve for a pipe system wherein liquid circulates is intended to be controlled dependent on the liquid temperature within the system by means of a thermostat adapted to actuate an electro magnet which, on its part, dependent on whether it is current-carrying or not, is adapted to retain the valve spindle in a position corresponding to open or closed valve position, respectively. The valve housing has plate-shaped seat body having a large central through-going flow opening and a number of smaller corresponding openings closer to the circumference. A spring-loaded first valve body is displaceably arranged on the spindle and cooperates with the central opening of the seat body in order to close/open the opening, a concentrical, spring-loaded hollow piece constituting a second valve body which also is displaceably arranged on the spindle cooperating with the peripheric openings via an annular flange portion in order to close/open the last-mentioned openings. The two valve bodies are axially displaceable in relation to each other, and they are each assigned a carrier on the spindle.
Patent CA-2017833-C (CA)
Title: Planar interdigitated dielectric sensor
Inventor: HENDRICK KENDALL B
IPC: G01R27/26
Filed: 1990-05-30
Granted: 1995-01-31
Abstract: A planar interdigitated dielectric sensor useful for measuring the surface properties of a material is disclosed. The sensor is formed on an insulating substrate. Attached to the surface of the substrate is an excitation and response electrode disposed in an interdigitated pectinate configuration and a resistance temperature device (metallic strip). Filling the space between the electrodes and the metallic strip is an insulating material of known dielectric properties.  The upper surface of the electrodes and the metallic strip are generally coplanar with respect to the insulating material between the electrodes thus forming a flat upper surface on the sensor. This flat upper surface serves to eliminate air gaps between the sensor surface and sample when analyzing relatively viscous materials.
Patent CA-2023239-C (CA)
Title: Torsional joint attachment for a seed planter
Inventor: TRUAX JAMES R
IPC: A01B49/06
Filed: 1990-08-14
Granted: 2000-10-24
Abstract: A seed drill machine of the type having a plurality of disk assemblies, and a torsion spring joint for connection of the disk assemblies to the frame of the machine. The machine is conventionally mounted on a pair of wheels and the disk assemblies can be raised and lowered relative to the whoels for travel from place to place in the raised position and for ground working in the lowered position. In the lowered position, the torsion spring joint biases the disk blades in penetrating engagement with the soil to form a furrow. The torsion joints include flexible, resilient type spring elements.      The disk assembly is carried by an arm connected to the joint. The spring elements are prone to develop a permanent deflection when they are left under load for a period of time. Means are provided for adjusting the angular relationship of the disk assembly arms to the connecting joints to compensate for such deformation.
Patent CA-2028451-C (CA)
Title: Platen-yoke apparatus for a printer using a floating platen
Inventor: DELANEY ROBERT
IPC: B41J11/24
Filed: 1990-10-24
Granted: 1995-11-21
Abstract: A platen-yoke apparatus for a printer using a "floating platen".  The platen for a wire matrix printer is mounted in a U-shaped channel.  When the printer is moved to one side of a document feeding surface, a ramp on one end of the platen cooperates with a roller secured to the print head to depress that end of the platen to cause it to be moved below the feeding surface.  A yoke member pivotally secured to the underside of the feeding surface and coupled to the ends of the platen causes the platen to be moved parallel to the feeding surface to lower the platen below the feeding surface to facilitate the insertion of a document to a printing station associated with the printer.
Patent CA-2036994-C (CA)
Title: Process and apparatus for emissions reduction from waste incineration
Inventor: KHINKIS MARK J
IPC: F23G5/00
Filed: 1991-02-25
Granted: 1995-09-19
Abstract: A furnace for combustion wherein a combustion chamber is configured such that waste can be advanced from a drying zone, to a combustion zone, to a burnout zone, and then into an ash pit.  An air source provides air for drying, combustion and burnout in a primary combustion zone (PCZ).  Fuel or a fuel/recirculated flue gas mixture is injected above the PCZ to create a mostly reducing substoichiometric secondary combustion zone (SCZ), to reduce NOx and decompose other nitrogen bearing compounds entering the SCZ.  Vitiated air is injected into the combustion chamber above the mostly reducing SCZ.  A process for combustion of the waste includes introducing the waste into the combustion chamber, advancing the waste through the combustion chamber, supplying combustion air to the combustion chamber for drying and combusting the waste and final ash burnout, and removing ash products from the combustion chamber.  The fuel or fuel/recirculated gas mixture is supplied into the combustion chamber to create substoichiometric conditions for NOx reduction and nitrogen bearing compounds decomposition.  Overfire air is supplied into the combustion chamber above the substoichiometric zone for thorough mixing and at least partial burnout of combustibles contained within the waste/fuel combustion products.
Patent CA-2041294-C (CA)
Title: Odorless cosmetic compositions in gelatin capsules
Inventor: MELNIK JOSEPH
IPC: A61K8/67
Filed: 1991-04-26
Granted: 2001-11-20
Abstract: A cosmetic product is disclosed in the form of a gelatin walled capsule encompassing a cosmetic composition that includes a carrier which is a silicone polymer and an antioxidant. The antioxidant operates to inhibit degradation of the gelatin wall to prevent malodors from being generated. Retinoic acid derivatives such as retinyl palmitate are especially effective as antioxidants.
Patent CA-2041916-C (CA)
Title: Ammonium nitrate/fuel oil blasting explosive having decreased oil segregation
Inventor: HAJTO ERNEST A
IPC: C06B31/28
Filed: 1991-05-07
Granted: 1994-04-12
Abstract: ABSTRACT            An explosive composition comprising an explosive mixture of ammonium nitrate and fuel oil. The fuel oil is selected to   provide   an   oil   separation sufficiently low so that the explosive is detonatable. The fuel oil is also selected such that the viscosity of the explosive is sufficiently low so that the explosive may be loadable into  a borehole.  The  explosive  is substantially  free  of  tackifying agents.
Patent CA-2046874-C (CA)
Title: Derivatives of n-phenylbenzamide with anti-ulcer and anti-allergy activity and a method for their preparation
Inventor: MAKOVEC FRANCESCO
IPC: C07C255/60
Filed: 1990-02-19
Granted: 1999-03-23
Abstract: Derivatives of N-phenylbenzamide with general formula (1) in which R1 is a cyano , nitro, halogen, hydroxy, C1-C4 alkyl methyl, methoxy or tetrazol-5-yl group, R2 is hydrogen, hydroxy, or methoxy, R3 is a tetrazol-5-yl group or hydrogen, R4 and R5 are hydrogen if R3 is tetrazolyl but are independently selected from the grou p consisting of carboxy, methoxycarbonyl, ethoxycarbonyl and carbamoyl if R3 is hydrogen, and R6 is hydrogen or methyl. T he derivatives have an anti-ulcer and anti-allergy activity.
Patent CA-2048213-C (CA)
Title: Highly absorbent, leak-proof and breathable diaper
Inventor: LEVY HARRY
IPC: A61F13/15
Filed: 1991-07-31
Granted: 1999-03-30
Abstract: The highly absorbent, leak-proof and breathable diaper of the invention is a 3-layer fabric incorporating a first layer of terry cloth, a second layer of polyurethane film, and a third layer of woven, or knit, fabric.  Both the first and second layers, and the second and third layers, are laminated together with a urethane adhesive.  The first layer then serves as a fluid absorbing portion for the diaper, while the second and third layers form a leakage-preventing portion for it.
Patent CA-2057725-C (CA)
Title: Photosensitive composition containing water as solvent or dispersant
Inventor: SALVIN ROGER PIERRE-ELIE
IPC: C08F4/00
Filed: 1991-12-16
Granted: 2000-09-19
Abstract: There are disclosed photosensitive compositions based on water as solvent and/or dispersant for the components of said compositions, comprising 10-50 % by weight of water-soluble and/or water-dispersible solid, crosslinkable film-forming polymers as binder, 4-50 % by weight of water-soluble and/or water-dispersible photopolymerisable acrylate and/or methacrylate monomers and/or corresponding oligomers, 0.1 to 10 % by weight of water-soluble and/or water-dispersible photoinitiator compounds for the photopolymerisable acrylate and/or methacrylate monomers and/or corresponding oligomers, and if the binder contains non-selfcrosslinking polymers, 2.5-40 %  by weight of water-soluble and/or water-dispersible crosslinking agents for the polymeric binder as thermal hardener, selected from the group consisting of epoxy resins, melamine resins and blocked polyisocyanates. Preferred compositions contain carboxyl group-containing acrylate and methacrylate polymers and copolymers as binder, the carboxyl groups of which composition are reacted with ammonia and/or amines in an amount sufficient to ensure the water-solubility of the polymers and copolymers.   The novel compositions are photoimageable and are particularly suitable for use as solder resists.
Patent CA-2063238-C (CA)
Title: Laparoscopic stapler with knife means
Inventor: MADDEN MARTIN
IPC: A61B1/00
Filed: 1992-03-17
Granted: 2003-05-06
Abstract: A four-row laparoscopic surgical stapler cutting mechanism is described wherein stapling and cutting are remotely accomplished. Further, there is disclosed closure means which enable closure and stapling of the apparatus.   Finally, such closure can take place either using lever or collar type means. This stapling apparatus is useful in performing surgical stapling functions through the cannula of a surgical trocar.
Patent CA-2067157-C (CA)
Inventor: MACKENZIE JOHN RICHARD STUART
IPC: G06F21/31
Filed: 1990-10-04
Granted: 1999-12-21
Abstract: In electronic communication systems, negotiations are performed between two pieces of apparatus (e.g. modems) in order to ensure technical compatibility during subsequent data transmission. Instead of performing security checks in the known manner after the negotiations have been completed (e.g. sending an access code or identity code), the invention teaches that the negotiations themselves should be customized to include security checks. For example, during negotiations between a call modem and an answer modem, the call modem includes a "first indication" in the negotiations. The answer modem detects the "first indication" and permits the call modem to have access to restricted access data during data transmission after the negotiations have been completed: The "first indication" may comprise a negotiation segment having a precise length and/or containing an embedded code. The answer modem may include a "second indication" in the negotiations in order to trigger the call modem to produce the "first indication". Also, the call modem may include a "third indication" in the negotiations after the "first indication" in order to identify more precisely or uniquely the call modem.
Patent CA-2067535-C (CA)
Title: Current limited subscriber interface circuit
Inventor: SILIGONI MARCO
IPC: H04M19/00
Filed: 1992-04-29
Granted: 2002-02-05
Abstract: An electronic interface circuit between a telephone subscriber line and a telephone main exchange is disclosed which forms, with the main exchange battery (UD), a supply bridge for the telephone line (LN), with limitation of the line current (IL) to a predetermined threshold value (ILIM). The voltage/current characteristic of the supply bridge is balanced for lower values of the line current (IL) than the threshold current (ILIM) and is unbalanced whenever the line current (IL) attains said threshold current (ILIM).
Patent CA-2070095-C (CA)
Title: Microspheres containing biologically-active components, processes for the preparation and uses
Inventor: CALLEGARO LANFRANCO
IPC: A61K9/52
Filed: 1992-05-29
Granted: 2000-04-25
Abstract: Novel smooth surface microspheres having a diameter of between 1 µm to µm are provided herein. Such microspheres comprise a particular biologically-active molecule, namely, a high molecular weight molecule of a proteic nature or of a glycosphingolipid nature and an ester of hyaluronic acid or mixtures of the esters of hyaluronic acids. In these smooth surface microspheres, the biologically-active molecule is adhered to the ester of hyaluronic acid. Such smooth surface microspheres have utility for the controlled release of the biologically-active molecule.
Patent CA-2071232-C (CA)
Title: Reduced heat input keyhole welding through improved joint design
Inventor: SANDERS JOHN M
IPC: B23K26/24
Filed: 1992-06-15
Granted: 1997-11-18
Abstract: An improved high energy density welding method for reducing input keyhole welding prepares the weld joint (8) between two edges (10, 14) of at least one member by separating the edges (10, 14) of the member (12, 16) with a controllable gap (22) by a projecting portion (24) selectively positioned on one edge (10, 14) of the member (12, 16).  The projecting portion (24) closely abuts the other edge of the member for maintaining the controlled distance (d) of the controllable gap (22) to enhance the welding method.
Patent CA-2072317-C (CA)
Title: Open and flexible package and a process for its production
Inventor: FOND OLIVIER
IPC: A47J31/24
Filed: 1992-06-25
Granted: 2002-12-03
Abstract: The package is in the form of a capsule containing a powder-form composition for a beverage having a body in the form of a frustum ar inverted frustum and a membrane acting as a cover. The capsule is fluid-tight during extraction by a fluid under pressure, i.e. the flow of fluid is directed through the layer of powder-form composition. It is deformable during extraction and adapted to various types of espresso machines without modification of their components.
Patent CA-2072399-C (CA)
Title: Process for the preparation of precipitated silica, novel precipitated silica and use thereof for reinforcing elastomers
Inventor: CHEVALLIER YVONICK
IPC: C08K3/00
Filed: 1992-06-25
Granted: 2001-01-30
Abstract: A process for the preparation of precipitated silica having an aptitude for dispersion and improved reinforcing properties. The invention also relates to new silicas which exist in the form of granules, powder or substantially spherical balls, these silicas being characterised in that they have both a BET specific surface and a CTAB specific surface of between 140 and 200 m<2>/g, and in that the porous volume constituted by the pores with diameters between 175 ANGSTROM and 275  ANGSTROM  represents at least 50 % in the case of powders and balls, and at least 60 % in the case of granules, of the porous volume constituted by the pores with diameters less than or equal to 400  ANGSTROM . Additionally, the granules have a degree of attrition which is less than 20 %, the powder which is a DOP oil uptake of between 180 and 350 ml/100 g, and the balls a mean size of at least 80  mu m. The invention also relates to the use of the said silicas as reinforcing fillers for plastics (elastomers).
Patent CA-2073501-C (CA)
Title: Device for connecting a flexible pipe to a rigid tubular joining piece
Inventor: CALMETTES LIONEL
IPC: F16L33/22
Filed: 1991-02-01
Granted: 1996-06-18
Abstract: Device for connection between a flexible pipe 1 and a rigid tubular joining piece 2 intended to be fitted inside the flexible pipe. Two coaxial, rigid, tubular elements 3, 4 are disposed respectively inside and outside the end of the flexible pipe and embrace this end. The inner tubular element 3 and the outer tubular element 4 each present, in contact with the flexible pipe, two cylindrical portions of different diameters, 3a,4a-3b,4b, the one of larger diameter being located towards the free end of the flexible pipe. The portion of larger diameter 3b of the inner tubular element thus constitutes, on its inner face, a housing 5 for the O-ring, said housing being closed by an annular wall 8 fixed to the outer tubular element 4.
Patent CA-2074096-C (CA)
Title: Lightning direction finder controller (ldfc)
Inventor: HENDERSON RONALD W
IPC: G01S5/00
Filed: 1991-02-07
Granted: 1996-12-24
Abstract: A lightning direction finder controller (LDFC) (201) for use at re-mote sites in a lightning Detection Network (101) provides information on lightning return strokes to a ne-twork controller (104). The LDFC (201) digitizes and processes return stroke data from an analogue direc-tion finder unit (222), time tags each return stroke with an absolute time accurate to the nearest 10-4 second of NIST time, and provides an inter face (210) for satellite and/or land line communication of lightning flash data to the network controller (104). The LDFC (201) includes a CPU board (206), a multi-function analogue and digital input/output board (216) that provides an inter-face to the analog direction finder unit (222), and an Interface Facility (210) that provides an interface for: satellite (202) and/or bisynchronous(200) communications, a local data storage device (120), diagnostic devices (114), and a satellite controlled clock (218). A watchdog timer (324) on the Interface Facility (210) resets the CPU (328) of the LDFC (201) when data communications cease, or the execution of the main program halts. The LDFC (201) supports a communications network overlay, using Reroute/Header messages, which allows the routing and passing of commands from any location in the network (101) to any other location, e.g. for remote diagnostic purposes. The LDFC (201) also supports virtual screen/keyboard capabilities, configurable parameter tables, various counts, status indica-tions and screens, and a time correction technique for an out-of-sync LDFC (201).
Patent CA-2076678-C (CA)
Title: Improved chimeric toxins
Inventor: WILLIAMS DIANE
IPC: A61K38/095
Filed: 1991-02-28
Granted: 1999-09-28
Abstract: A chimeric toxin comprising protein fragments joined together by peptide bonds, the chimeric toxin comprising, in sequential order, beginning at the amino terminal end of the chimeric toxin, (a) the enzymatically active Fragment A of diphtheria toxin, (b) a first fragment including the cleavage domain 1 1 adjacent the Fragment A of diphtheria toxin, (c) a second fragment comprising at least a portion of the hydrophobic transmembrane region of Fragment B of diphtheria toxin, the second fragment having a deletion of at least 50 diphtheria toxin amino acid residues, the deletion being C-terminal to the portion of the transmembrane region, and the second fragment not including domain 12, and (d) a third fragment comprising a portion of a cell-specific polypeptide ligand, the portion including at least a portion of the binding domain of the polypeptide ligand, the portion of the binding domain being effective to cause the chimeric toxin to bind selectively to a predetermined class of cells to be attacked by the enzymatically active Fragment A.
Patent CA-2079465-C (CA)
Title: Paint containing high levels of a pyrithione salt plus a copper salt
Inventor: RUGGIERO MURRAY A
IPC: C09D167/00
Filed: 1991-03-28
Granted: 2001-11-20
Abstract: This invention relates to an improved paint or paint base composition characterized by enhanced biocidal efficacy. The paint or paint base composition is essentially free of tin, lead, and vanadium and contains a biocide comprising pyrithione salt and a copper salt. The pyrithione salt is present in the paint in an amount of between about 5 % and about 50 %, and the copper salt is present in an amount of between about 5 % and about 50 %, the total amount of biocide being between about 10 % and about 75 %, based upon the total weight of the paint composition.
Patent CA-2084016-C (CA)
Inventor: ROHRMANN JURGEN
IPC: C07F17/00
Filed: 1992-11-27
Granted: 2004-06-22
Abstract: The invention relates to a process for the preparation of a compound of the formula IV or IVa (see formula IV and IVa) in which R1-R5 are preferably hydrogen or alkyl, which comprises reacting a compound I   (see formula I) with a compound II   (see formula II) in which X1 and X2 are preferably halogen, to give the corresponding indanones, which are converted into the compounds IV and IVa by reduction and dehydra-tion. The compounds IV and IVa are important intermediate products for the preparation of chiral metallocene complexes which are suitable catalyst components for olefin polymerization.
Patent CA-2086097-C (CA)
Title: Adjuvants and vaccines
Inventor: HUNTER ROBERT L
IPC: A61K39/39
Filed: 1991-06-27
Granted: 2001-06-12
Abstract: The present invention comprises adjuvants which, when admixed with an antigen and administered into a human or animal, will induce a more intense immune response to the antigen than when the antigen is administered alone. In many cases, the adjuvant that is described as the present invention will increase overall titer of antibodies of a specific isotype which are specific for the antigen. For example, in mice, when the adjuvant of the present invention is admixed with a conventional antigen, the isotype that is induced in the mouse is changed from a predominantly IgG1 isotype to the more protective IgG2 isotype and, in some cases, IgG3 isotype. Thus, by practicing the present invention, one can improve the overall protective effect of conventional vaccines.