baber/WOPTO huggingface dataset:
Patent NO-177866-C (NO)
Inventor: DERRICK ARTHUR PERCY
IPC: D21H17/68
Filed: 1991-07-02
Abstract: The fines retention or drainage properties of mechanical pulps in the paper making process are improved by including in the thin stock, not after the last point of high shear, particles of a water-dispersible colloid siliceous material such as a bentonite clay in intimate association with a low molecular weight water soluble high anionic charge density polymer, such as polyacrylic acid having a molecular weight below 50,000 and a charge density of at least 4 m eq/g and further including in the thin stock, after the last point of high shear, a non-ionic high molecular weight polyelectrolyte such as polyacrylamide having a molecular weight of at least 100,000.
Patent CA-2001405-C (CA)
Inventor: ROBERTS LAWRENCE G
IPC: G06T9/00
Filed: 1989-10-24
Granted: 1999-03-23
Abstract: Bit-mapped and compressed image data are converted  one another through an intermediate image data or code form wherein each image is represented by a list of sublists, each sublist being itself a list of numerical values representing run lengths  transitions from one type of picture element (pel) to a second and opposite type of picture element (pel) (e.g., a black pel and a white pel).  Hence the intermediate code data structure according to the invention is termed a transition list or TL code or data structure.  The data structure and coding rules are defined by rules relating to code type, code word length and code word interdependence.  A specific conversion process specifies that the transition list be composed of sublists wherein each represents a scan line.  The preferred form of intermediate code is a fixed word-length transition list, that is, a serial list of values representing run lengths of either "black" picture elements or "white" picture elements stored serially in digital data format having a fixed word length.
Patent CA-2002100-C (CA)
Inventor: ZOSKI GLENN
IPC: G01N21/66
Filed: 1989-11-02
Granted: 1994-12-06
Abstract: ABSTRACT OF THE DISCLOSURE An apparatus for conducting measurements of electrochemiluminescent (ECL) phenomena includes a cell unit having an electrode configuration for inducing the emission of ECL light by the application of a selected voltage waveform to a sample fluid including an ECL moiety.  The sample fluid is transported to and from the cell unit by a flow-through pump/tubing system.  A photomultiplier tube detects the intensity of light emitted by the sample fluid during the ECL measurement process.  A computer control unit both analyzes the detected data and provides digital control signals to the cell unit to generate effective voltage waveforms.  The digital control signals are supplied to a novel pulse width modulated digital to analog converter which outputs a ramp voltage waveform having the desired slope.
Patent CA-2005815-C (CA)
Title: Antiviral acyclic nucleoside derivatives
Inventor: BEAUCHAMP LILIA MARIE
IPC: A61K31/52
Filed: 1989-12-18
Granted: 1999-08-03
Abstract: The  present  invention  relates  to  valinate  esters  of  purine nucleosides  containing  an  acyclic  side  chain,  and  their  use  in medical therapy, particularly the treatment and prophylaxis of herpes virus infections.  Also provided are pharmaceutical formulations and processes for the preparation of valinate esters according to the invention.  The valinate esters are of formula (I):                             wherein R and R1 are independently selected from a hydrogen atom or a valine residue providing at least one of R and R1 represents a valine residue.
Patent CA-2012102-C (CA)
Title: Dimmer rack
Inventor: CUNNINGHAM DAVID W
IPC: H05K7/18
Filed: 1990-03-13
Granted: 1996-07-23
Abstract: A dimmer rack (10)  for mounting a plurality of modular units called dimmer modules(14) is disclosed. Each  of  the  modules  is  used  to  provide  dimming control  for  each  lighting  circuit  in  a  lighting system.    The  rack  is  a  vertical  enclosure  and utilizes  a  plurality  of modular  shelving  elements (78)  attached to the sides of each file to define individual receptacles for each module.  Tabs (60) in the shelving register with grooves or slots (160) on the external housing of the dimmer modules, whereby precise tongue and groove mounting of each dimmer module is obtained.  The rack provides vertical input power and control  signal busses  (30,32)  which are mounted side by side at the rear of the rack which register  with  and  are  engaged  by  first  mating connectors  (230,232)  on  the  rear  of  each  of  the dimmer modules at one end thereof.  A vertical output power bus (40) is provided at the rear of the rack on the side opposite the power and control signal busses which  registers  with  and  engages  other  mating connectors (240) on the rear of the dimmer modules at the end opposite the first connectors.   A vertical neutral bus strip (50) is mounted adjacent the output power bus  (40)  to provide a return wire connection point for each lighting circuit.   Where three phase power is supplied to the rack, the dimmer modules are grouped vertically by phase,  one below the other. This  permits  quick  and  efficient  rack  to  rack bussing.
Patent CA-2013520-C (CA)
Title: Textile for mounting on canvas and method of fabrication therefor
Inventor: GROSHENS PIERRE
IPC: D04H1/498
Filed: 1990-03-30
Granted: 1994-05-10
Abstract: A textile for fabric covering and process for its manufacture. 
<??>It comprises a knitted or woven textile support (1) and at least one nonwoven sheet (2a or 2b). 
<??>According to the invention the nonwoven sheet(s) (2a or 2b) is (are) bonded to the knitted or woven textile support (1) by needling using a fluid jet.
Patent CA-2027814-C (CA)
Title: Treatment of hepatobiliary disease with 15-keto-prostaglandin compounds
Inventor: UENO RYUJI
IPC: A61K31/557
Filed: 1990-10-17
Granted: 1996-07-30
Abstract: The present invention provides a pharmaceutical composition for treatment of a hepatobiliary disease comprising a 15-ketoprostaglandin compound in association with a pharmaceutically acceptable carrier, diluent or excipient.
Patent CA-2031572-C (CA)
Title: Non-alcoholic delivery system for orally ingestible active ingredients
Inventor: WILSON MARK E
IPC: A61K9/46
Filed: 1990-12-05
Granted: 1996-01-30
Abstract: A non-alcoholic delivery system for active ingredients is disclosed which does not require the use of alcohol as a solvent.          Surface acting agents, or surfactants, are used to reduce surface tension of the compound in solution, facilitating dissolution of all additives including non-soluble, spray-dried flavoring oils.          Surface acting agents also may produce a foaming or effervescent effect,  if desired.   One formulation produces a good-tasting, desirable mouthwash with appropriate flavor concentrations, as well as other products.
Patent CA-2034037-C (CA)
Title: Redox-potential control
Inventor: DALIN IVAN
IPC: G01N27/416
Filed: 1991-01-11
Granted: 1999-01-12
Abstract: A  method  of  maintaining  a given content of a substance A in an  aqueous solution  where it  is continuously consumed and  where the  redox potential E, at least within the range of  concentration  used,  approximately satisfies the equation:       E = G + F(x) wherein x  is the  content of A, F is a function of x whose derivative dF/dx approaches  zero  when  x  assumes  a high value,  and  G  on  the  whole  is  independent of x but is influenced by other parameters, such as  pH, temperature or the like.  The addition  of A  is controlled in such manner that a set value of the redox potential  is maintained. The set  value  is  determined  by increasing or decreasing the addition of A  in  a  predetermined  manner,  whereupon the redox  potential  is  measured,  and  the measured value is used for determining the set value.
Patent CA-2036881-C (CA)
Title: Fire emergency, sprinkling control system and method thereof
Inventor: ASSELIN JEAN-PIERRE
IPC: A62C35/64
Filed: 1991-02-22
Granted: 1994-06-28
Abstract: ABSTRACT OF THE DISCLOSURE            There is described an electronic fire reporting and sprinkling control module to be connected to a control bus of a fire alarm system, and to a flow control valve which controls flow of extinguishing fluid into a sprinkler system. The sprinkler system can be monitored by pressurized air. The module comprises a bus connection,  detector input connections, an air pressure detector connection to provide a status signal representative of pressure inside the sprinkler system,  a detection mode unit having inputs connected to the detector input connections,  a pre-programmed sprinkling mode unit for generating a sprinkler signal according to a pre programmed operation mode and the status signal present at the air pressure input connection, a timer for initiating sprinkling periods as long as its input is activated, and a valve control unit having a first input for receiving an output signal from the timer, and an output for activating the flow control valve,  whereby information concerning a fire emergency can be directly transmitted to the fire alarm system by means of the control bus connection, whereby fire emergency conditions in an area can be set by means of a group of detectors and the detection mode unit,  and whereby automatic sprinkling periods can be programmed by means of the timer. There is also described a flow control valve system, and a method of controlling the flow control valve.
Patent CA-2038024-C (CA)
Title: Drive system roller apparatus
Inventor: IMAI MASAO
IPC: B65G47/26
Filed: 1991-03-12
Granted: 1994-04-26
Abstract: ABSTRACT OF THE DISCLOSURE     A drive system roller aparatus used for a roll-er conveyer built in a shelf device or a roller con-veyer installed on a floor, wherein at the outer periphery of a roller shaft suppoted at a frame is provided a roller body rotatable and suppoting a load to be transported, between the roller body and the roller shaft is provided an annular flexible member which is capable of expanding and contracting so as to contact with and remove from the inner periphery of the roller body by the erxpansion and contraction, and the flexible member is rotatably deiven, so that an operating fluid is supplied from the fluid route into the flexible member, and the flexible membe in the contacting state is expanded to abut against the inner surface of the roller body, thereby the roller body rotates to transport a load.
Patent CA-2043121-C (CA)
Title: Article transfer apparatus
Inventor: BOLIN JAMES A
IPC: B65G47/82
Filed: 1991-05-23
Granted: 1994-11-01
Abstract: Apparatus for transferring articles such as glass containers from a first conveyor, on which the containers are travelling generally horizontally in line one after another, on to a second conveyor extending generally at right angles to the first conveyor from one side of the first conveyor.  The apparatus is operable in cycles to transfer on each cycle a group of articles from the first to the second conveyor with the articles in the group extending in a row transversely of the second conveyor. The apparatus includes a support, a first carriage on the support movable generally parallel to the second conveyor, a second carriage on the first carriage movable with respect to the first carriage generally parallel to the first conveyor, and a third carriage on the second carriage movable vertically with respect to the first and second carriages.  The third carriage carries a pusher bar.  The carriages are driven by separate motors under the control of a programmable controller which operates the motors during each cycle of the machine to drive the carriages to cause the pusher bar to transfer a group of articles from the first conveyor on to the second conveyor.
Patent CA-2043381-C (CA)
Title: Electrostatic spray apparatus
Inventor: WOOLLARD DOUGLAS J
IPC: B05B7/06
Filed: 1991-05-28
Granted: 2000-12-05
Abstract: An electrostatic spray apparatus comprises a source of electrostatically charged liquid connected to an annular nozzle which discharges a hollow tube of electrostatically charged liquid, a source of atomizing air under pressure, an annular atomizing air discharge nozzle surrounding the liquid discharge nozzle, and an annular swirl chamber for the atomizing air. A plurality of apertures connect the source of air to the swirl chamber, the apertures being oriented at an angle to the radial direction to initiate a substantially tangential swirling flow of air in the chamber and being disposed to allow air to pass radially outwardly into the chamber. The chamber is defined by walls which tend to converge in an axial direction from the plurality of apertures towards the air discharge nozzle.
Patent CA-2049627-C (CA)
Title: Recovering hydrocarbons from hydrocarbon bearing deposits
Inventor: GLANDT CARLOS ALBERTO
IPC: E21B43/30
Filed: 1991-08-21
Granted: 2002-04-30
Abstract: An apparatus and method are disclosed for producing thick tar sand deposits by electrically preheating paths of increased injectivity between an injection well and production walls, wherein the horizontal sections of the injections and the production wells are arranged in a triangular pattern with the horizontal section of the injection well located at the apex and the horizontal sections of the production wells located on the base of the triangle. These paths of increased injectivity are then steam flooded to produce the hydrocarbons.
Patent CA-2051219-C (CA)
Title: Method of preparing laminated packaging material
Inventor: KOMIYA YUJI
IPC: B29C47/06
Filed: 1991-09-12
Granted: 2001-06-19
Abstract: A method of preparing a laminated packaging material, comprising forming an extruded coating layer of a thermoadhesive resin on a thin-film layer provided on a substrate, said thin-film layer comprising an inorganic or metal compound and having gas barrier properties. The thin-film layer is laminated thereon with a heat buffer layer in such a way that the substrate may substantially undergo no expansion and constriction, e.g., by dry lamination or non-solvent lamination. Then the extruded coating layer is formed on the heat buffer layer, after an anchor coat layer has been optionally formed on the heat buffer layer. Such a heat buffer layer is preferably selected from the group consisting of a polyester film, a polyethylene film, a polypropylene film and a polyamide film.
Patent CA-2053448-C (CA)
Inventor: ISHIDA HISASHI
IPC: H01L21/48
Filed: 1991-10-15
Granted: 1996-09-17
Abstract: The multilayer printed wiring board of this invention consists of a base substrate, a plurality of multilayer interconnections formed by lamination of metal wiring layer and insulation layer on the base substrate and ceramic substrates provided with through holes for electrical connection of the multilayer interconnections and inserted between two multilayer interconnections.  The manufacturing method comprises lamination of metal wiring layers and insulation layers on both sides of ceramic substrates to form multilayer interconnections, forming of a multilayer interconnection on the base substrate by laminating a wiring layer and an insulation layer, and integration of the ceramic substrates with metal wiring layers and the base substrate placed together under heated and pressurized conditions.
Patent CA-2055124-C (CA)
Inventor: WEIT HERBERT
IPC: B01F23/30
Filed: 1991-11-07
Granted: 1996-04-23
Abstract: The invention relates to a material dispersion apparatus, particularly for spreading classifiers, with an upper material supply means and a material feed surface.  The known disadvantages of hydroextractors or whizzers æ e overcome in that the material feed surface is constructed as a sieve-like surface, which is installed in an air channel.
Patent CA-2060836-C (CA)
Title: Straight cut coater unwind knife
Inventor: WADZINSKI MICHAEL J
IPC: B65H19/20
Filed: 1992-02-11
Granted: 2005-04-19
Abstract: A web severing device for providing a smooth severed edge on a moving web. The device includes a support member and a plurality of independent blade sections mounted on the support member at substantially a 45° angle with respect thereto. In one embodiment, a forward portion of each of the blade sections is angled toward a center of the support member whereas in a second embodiment, the blades are alternately angled toward and away from the center of the support member. In all embodiments, the support member is selectively released toward the web, and the plurality of blade sections simultaneously engage with the web to sever the same.
Patent CA-2075075-C (CA)
Title: Process for remote action taking on a site such as a damaged nuclear plant
Inventor: FRENEIX GERARD
IPC: G21D1/00
Filed: 1992-07-31
Granted: 1996-12-24
Abstract: The process consists in arranging waveguide sections (4) end to end by virtue of at least one trolley (3) remotely controlled by the waveguide line thus produced and provided with gripping members (5) for the installation and at least one manipulator arm (6) for connecting the waveguide sections (4), from a control station (1) comprising a signal generator and receiver and as far as the site (2) to be inspected and optionally treated. 
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Patent CA-2075206-C (CA)
Inventor: HEYNEKER HERBERT L
IPC: C12N15/87
Filed: 1990-11-30
Granted: 2006-05-23
Abstract: A transgene for producing recombinant polypeptides in the milk of transgenic bovine species comprises at least one expression regulation sequence, a secretory DNA sequence encoding a secretory signal which is functional in mammary secretory cells of the bovine species and a recombinant DNA sequence encoding the recombinant polypeptides. A method for producing transgenic bovine species comprises introducing the above transgene into an embryonal target cell of a bovine species, transplanting the transgenic embryonic target cell formed thereby into a recipient bovine parent and identifying at least one female offspring which is capable of producing the recombinant polypeptide in its milk. The invention also includes transgenic bovine species capable of producing recombinant polypeptides in transgenic milk as well as the milk from such transgenic bovine species and food formulations containing one or more recombinant polypeptide. A method for producing transgenic non-human mammals having. a desirable phenotype comprises first methylating a transgene followed by introduction into fertilised oocytes. The oocytes are then cultured to form preimplantation embryos. Thereafter, at least one cell is removed from each of the pre-implantation embryos and the DNA digested with a restriction endonuclease capable of cleaving the methylated transgene but incapable of cleaving the unmethylated form of the transgene.
Patent CA-2076040-C (CA)
Title: Rackable plastic pallet
Inventor: SHUERT LYLE H
IPC: B65D19/32
Filed: 1991-02-22
Granted: 2002-11-19
Abstract: A plastic pallet (10) in which a base structure (14) is posi-tioned beneath the plastic main body structure (12) of the pallet to discourage warpage and failure of the pallet especially in racked, loaded storage situations. The plastic main body structure (12) of the pallet includes a planar platform section (16) defining an upwardly facing load receiving surface and a plurality of legs (18) extending downwardly from the platform section to define tunnels therebe-tween for receipt of the forks of a forklift truck. The base structure includes a lower plastic sheet (44), an upper plastic sheet (42), and a plurality of tubular metallic beams (40) positioned in hollow ribs (14b) defined by the lower plastic sheet. The ribs (14b) are respective-ly secured to respective rows of legs (18) of the main body structure.      Another embodiment of the base structure comprises a plurality of discrete individual beam structures (114 or 150) secured to rows of legs (118).
Patent CA-2077103-C (CA)
Inventor: BOGGS STEVEN W
IPC: G09F3/02
Filed: 1992-08-28
Granted: 2003-06-10
Abstract: A composite label assembly includes a release sheet having first and second sides, with a first cellulose paper label attached by repositional adhesive on the first side, and a second polyester label with permanent pressure sensitive adhesive on the second side. The first label has first indicia relating to an appliance, such as a water heater, while the second label has second indicia relating to the same appliance, e.g. model number and/or serial number. The assembly also includes a shipping label and a warning label. The composite label assembly is easily and readily produced from a web of paper label stock associated with a web of release paper by die cutting paper labels from the label stock and removing the matrix material, and then affixing on the polyester labels directly to the release web.
Patent CA-2079297-C (CA)
Title: Surgical slipper for animal
Inventor: LOGAN ERNEST FERGUS
IPC: A01L9/00
Filed: 1992-09-28
Granted: 2002-01-22
Abstract: A surgical slipper for cleft footed animals in either left or right claw configuration comprising a sole (3) and upper (1,2) which together define a cavity into which one claw of the cleft footed animal is, in use, fitted, and a lattice (4) in the form of an array of intersecting ribs projects from the underside of the sole. The ribs are thick enough to hold the claw away from the ground and the sole is arranged to be thin enough in voids between the ribs so that a hole can be readily punched for drainage purposes.
Patent CA-2092383-C (CA)
Inventor: ROELEVINK BAUKE J
IPC: H01J61/78
Filed: 1993-03-24
Granted: 2002-12-17
Abstract: The low pressure discharge lamp comprises a tubular discharge vessel (1). At each of its end portions (2, 3) the vessel (1) is fused to a respective metal tube (5) having an uncovered outer surface outside said vessel. A respective sealed glass tube (6) is fused to the metal tubes (5). Ignition aids (18, 28, 40) may be present. The simple construction of the lamp allows for an easy manufacture and a high lamp quality, even at long lengths and/or small diameters of the discharge vessel. The lamp may have an ionizable filling of rare gas or may contain mercury in addition. A  fluorescent powder may be present in the discharge vessel. The lamp (72) and a luminaire (70, 71) comprising the lamp may be used e.g. for display or signalling purposes.
Patent CA-2095895-C (CA)
Inventor: DEMISSY DANIEL
IPC: H01H33/12
Filed: 1993-05-10
Granted: 1997-02-18
Abstract: Sectionneur à haute tension comprenant un bras mobile en rotation entre une position enclenchée et une position déclenchée, ledit bras ayant une première extrémité reliée électriquement à une première prise de courant et une seconde extrémité s'engageant, lorsque le sectionneur est en position enclenchée, dans une mâchoire reliée électriquement à une seconde prise de courant. Le bras est associé à une tige métallique souple, dite fouet, relié électriquement et mécaniquement par une première extrémité audit bras mobile et dont la seconde extrémité coopère avec une pièce de guidage métallique reliée à ladite mâchoire et permet une rupture brusque du courant à l'ouverture du sectionneur. La section du fouet est un cercle tronqué dont la surface diminue progressivement de la base à la pointe du fouet.