baber/WOPTO huggingface dataset:
Patent CA-2025430-C (CA)
Title: Coated abrasive containing a pressure-sensitive adhesive coatable from water
Inventor: JORGENSEN JENS L
IPC: C09J7/38
Filed: 1990-09-14
Granted: 2001-05-01
Abstract: This invention relates to coated abrasive products having a pressure-sensitive adhesive layer coatable from water.      Many coated abrasive products, especially coated abrasive sheets and discs, are mounted on a support pad, sometimes called a back-up pad, during use. One means for securing the coated abrasive article to the support pad calls for a pressure-sensitive adhesive. Typically, the surface of the coated abrasive article not containing the abrasive grains will bear a layer of pressure-sensitive adhesive.      For many years, pressure-sensitive adhesives have been coated fram organic solvent solutions onto the non-abrasive side of the coated abrasive article with excellent results. However, because recent governmental regulations require reductions in solvent emissions, the coated abrasive industry desires to eliminate all organic solvents from their coating operations. This invention provides a coated abrasive product having a backing bearing abrasive grains on one major surface thereof and a pressure-sensitive adhesive, coatable from water, on the other major surface thereof. The pressure-sensitive adhesive can be used to secure the coated abrasive to a support pad or back-up pad. The support pad provides the coated abrasive with the necessary foundation during abrading operations. The pressure-sensitive adhesives of this invention can adequately secure the coated abrasive to the support pad even at high rotation speeds and at high grinding pressures. Previously known pressure-sensitive adhesives for coated abrasives that are coatable from water were unable to provide this property.
Patent CA-2032776-C (CA)
Title: Apparatus for driving a service function unit of a multi-function telephone set
Inventor: KOMA NORIKO
IPC: H04M1/27
Filed: 1990-12-20
Granted: 1995-01-17
Abstract: In an apparatus for driving a service function unit of a multi-function telephone set, each service function is carried out by pushing one hardware type programmable key.  The pushing of the programmable key is to read programmed service information stored in a memory, and to process the read service information, so that the service function is easily carried out by a single key operation by a user of the telephone set.
Patent CA-2035799-C (CA)
Title: Internal centring device particularly suitable for connecting the ends of tubes
Inventor: BERTI DARIO
IPC: B23K37/053
Filed: 1991-02-06
Granted: 2002-04-30
Abstract: An internal centring device which is particularly suitable for the connection of tube ends wherein there are fitted onto a central supporting member of mainly axial development two hollow mandrels of which at least one is adapted for axial movement and at least one is articulated on the said central body and is provided with at least three radial actuators which are disposed sufficiently remotely from the corresponding articulation, for angular positioning of the mandrel in relation to the said central body, each mandrel having an outer elastic sleeve which is capable of being radially expanded by an internal hydraulic axial actuator having two opposing threads.      Also described are particular types of axial actuators as well as alternative embodiments.
Patent CA-2036573-C (CA)
Inventor: AKIYAMA SIGEO
IPC: H01L31/111
Filed: 1991-02-19
Granted: 1996-03-12
Abstract: A  method   for   manufacturing   an   optically triggered lateral thyristor is to form an anode region by providing a first opening in an insulating layer formed on a semiconductor substrate, a diffusion layer by providing a second opening in the insulating layer to be spaced from the anode region,  a base-forming region by providing a third opening in the insulating layer externally adjacent to   the   second  opening,   and   a   base   region   and simultaneously  a  cathode  region  by  means  of  double diffusion  through  the  third  opening,  the  base  region having  a  lateral  width  determined  by  a diffusion difference  between  the  base  and  cathode  regions  for effective minimization of the width.
Patent CA-2038019-C (CA)
Title: Pipeline pig and method of cleaning a pipe
Inventor: SIVACOE ORLANDE
IPC: B08B9/04
Filed: 1991-03-12
Granted: 1995-08-08
Abstract: Pipe cleaning pigs have a relatively short life expectancy and are ill adapted for cleaning any deposits harder than candle wax.  A relatively simple solution to these problems involves a pipe cleaning pig including an elongated, one-piece, flexible, cylindrical body with hemispherical ends annular ribs integral with and extending outwardly from the body, longitudinal ribs extending between the annular ribs for strengthening the annular ribs and defining recesses with such annular ribs, and teeth in the recesses for engaging the interior of a pipe when the pig is moved through the pipe under fluid pressure.
Patent CA-2038887-C (CA)
Inventor: BEYLAT JEAN-LUC
IPC: H04B10/61
Filed: 1991-03-22
Granted: 1993-10-05
Abstract: Cet ensemble est réalisé sous la forme d'une tête optique intégrant, outre un isolateur optique (6, 8), un amplificateur modulateur de phase à semiconducteur (18). Ce dernier est orienté parallèlement au laser émetteur (2) grâce à la présence d'un compensateur de rotation (14, 15) pour compenser la rotation de polarisation que l'isolateur impose à la lumière de ce laser. L'invention s'applique notamment aux télécommunications à fibres optiques.
Patent CA-2040666-C (CA)
Title: Continuous structure forming method and the resulting product
Inventor: PAYNE LEROY
IPC: E02D17/08
Filed: 1991-04-17
Granted: 2001-07-31
Abstract: A method of continuously forming an extended length of a unitary structure includes the following steps.      A supply of a porous flexible blanket is provided.      A high viscosity flowable solidifiable mixture is con-tinuously flowed simultaneously into an entire contin-uously moving width of the porous flexible blanket.      Pressure is applied against the treated blanket to form a uniform matrix therewith. The rate of advance of the blanket is monitored. The rate of alliance is co-ordinated with the flow rate of the mixture into the blanket and with the pressure applied thereto: A sub-stantially flat non-porous flexible envelope is posi-tioned along the length of the treated blanket. The envelope/blanket combination is positioned along a de-sired path. A pressurized gas is introduced into the envelope. The envelope is inflated to move the treated blanket into a final configuration, The non-porous envelope maintained in an inflated state until the treated blanket is set in the final configuration.  Also a unitary structure formed according to the above method.
Patent CA-2041732-C (CA)
Title: Apparatus for the treatment of milling products
Inventor: OBITZ LARS
IPC: D21B1/24
Filed: 1991-05-02
Granted: 2002-12-24
Abstract: Apparatus for treating milling product includes a hous-ing (14) in which a rotor (4) is rotatably mounted. The rotor is provided with a number of pockets (3) which, as the rotor (4) rotates, are brought into register sequen-tially with a milling-product inlet (1) and a steam outlet (11), the steam being separated from the milling product during rotation of the rotor.      The pockets (3) have a radially discharging opening (10) which in one position of a pocket between the inlet (1) and the outlet (11) is caused to coincide with an outlet opening (8) provided in the housing and through which the milling product is thrown to a steam-tight discharge device (9). The steam content of the pocket is entrained to the outlet (11) and blown from the housing through this outlet.
Patent CA-2042363-C (CA)
Inventor: MCKAMEY CLAUDETTE G
IPC: C22C38/06
Filed: 1990-03-07
Granted: 1997-11-11
Abstract: An improved iron aluminide alloy of the DO3 type that has increased room temperature ductility and improved high elevated temperature strength. The alloy system further is resistant to corrosive attack in the environments of advanced energy corrosion systems such as those using fossil fuels. The resultant alloy is relatively inexpensive as contrasted to nickel based and high nickel steels currently utilized for structural components. The alloy system consists essentially of 26-30 at.% aluminum, 0.5-10 at.% chromium, 0.02-0.3 at.% boron plus carbon, up to 2 at.% molybdenum, up to 1 at.% niobium, up to 0.5 at.% zirconium, up to 0.1 at.% yttrium, up to 0.5 at.% vanadium and the balance iron.
Patent CA-2051891-C (CA)
Title: Method and apparatus for coding moving image signal
Inventor: OHKI JUNICHI
IPC: G06T9/40
Filed: 1991-09-19
Granted: 1997-01-21
Abstract: According to a method and apparatus for coding a moving image signal, a change between a current frame and a previous frame is detected in units of blocks obtained by dividing a frame constituted by an input moving image signal into a plurality of pixels. A first valid block map is formed in units of frames by determining valid and invalid blocks on the basis of the detected changes. A first weighting operation of the formed first valid block map is performed. A second weighting operation of a fourth valid block map of the previous frame is performed. A weighted second valid block map is obtained by adding/synthesizing the first and fourth valid block maps respectively subjected to the first and second weighting operations. A third valid block map is obtained by performing predetermined segmentation of the second valid block map. A fourth valid block map is obtained by determining validity of an isolated invalid block in the third valid block map by referring to neighboring blocks.  A valid block region of the fourth valid block map is coded.
Patent CA-2053705-C (CA)
Title: Piperazine derivatives
Inventor: CLIFFE IAN ANTHONY
IPC: A61P9/12
Filed: 1991-10-18
Granted: 2002-02-12
Abstract: Piperazine derivative of formula (see formula I) and the pharmaceutically acceptable acid addition salts, where A is an alkylene chain of 1 or 2 carbon atoms optionally substituted by one or more lower alkyl groups; m is 0, 1 or 2, R is hydrogen or lower alkyl, R1 is aryl or a mono o.r bicyclic heteroaryl radical, R2 is hydrogen or lower alkyl, R3 is a heteroaryl radical, R4 is hydrogen, lower alkyl or aryl, and R5 is hydrogen, lower alkyl, cycloalkyl, cycloalkyl(lower)alkyl; aryl, or aryl(lower)alkyl or R4 and R5 together with the nitrogen atom to which they are both attached represent a saturated heterocyclic ring which may contain a further hetero atom are 5-HT1A- binding agents and may be used, for example, as anxiolytics.
Patent CA-2054105-C (CA)
Title: A method for preparing a salt of 4-hydroxystyrene and for preparing 4-tertiary-butoxycarbonyloxystyrene therefrom
Inventor: KVAKOVSZKY GEORGE
IPC: C07C68/06
Filed: 1991-10-24
Granted: 2002-10-08
Abstract: The present invention pertains to a method of forming a salt of 4-hydroxystyrene by reacting 4-acetoxystyrene with a suitable base in a suitable solvent system. Subsequently, or simultaneously, the salt of 4-hydroxystyrene can be reacted, preferably in situ, with di-tertiary-butyl-dicarbonate to form 4-tertiary-butoxycarbonyloxystyrene.
Patent CA-2055148-C (CA)
Inventor: LANGEVIN ALAIN
IPC: H05K3/34
Filed: 1991-11-07
Granted: 2002-06-18
Abstract: A method of forming an electrically conductive contact on an insulated substrate such as a printed circuit board includes the step of defining a contact area on the substrate and applying a copper buss on the substrate so that it extends beyond the marginal edges of the contact area. A thin layer of soldermask is then applied to cover the upper surface of the copper buss outside of the contact area.  Thereafter, a Thick Film Polymer (TFP) conductive paste is applied over the copper buss in the contact area defined on the substrate and over a small portion of the soldermask so that the copper buss is covered completely.
Patent CA-2061232-C (CA)
Inventor: LEWIS MICHAEL L
IPC: F16H55/49
Filed: 1992-02-14
Granted: 1995-02-28
Abstract: A  power  transmission  multi-groove  sheave  and  method  of manufacturing such sheave wherein each of the grooves of the multi-groove sheave incorporate critical dimensions to make it adaptable for use with any of several commercially known multi-groove sheaves and belt sets therefor, the multi-groove sheaves having differing proximal critical dimensions including those relating to the side wall angles of slope, the top and bottom widths, the normal depths, and the spacing between width centers of adjacent grooves.
Patent CA-2062362-C (CA)
Title: Merchandising unit
Inventor: ROSENTHAL GUNTER
IPC: A47F5/00
Filed: 1992-03-05
Granted: 1996-05-28
Abstract: A merchandising unit comprises a structure having a rear display panel and two side spaced-apart parallel panels joined to the rear panel at upstanding columns and further upstanding columns extending at the outer edges of the side panels.  A rectangular frame is provided at the top of the structure for maintaining the stability thereof.  A wire grid forms the rear and side panels which define a vaulted space, and display trays and/or shelves having hook brackets are hung from the rear panel within the vaulted space,  and similar display devices having hook brackets are hung from the side panels on the surface away from the vaulted space.
Patent CA-2062717-C (CA)
Title: Insect control system
Inventor: BRENNER RICHARD J
IPC: A01M1/20
Filed: 1990-06-08
Granted: 1996-12-31
Abstract: A packaged bait system for the control of insects, especially cockroaches and other orthopterous insects, comprising an in-secticidal food bait composition housed in a bait block holder that allows for easy placement in locations where the probability of encounter by the target insect is high and that makes the bait readily accessible to the target insect.
Patent CA-2065833-C (CA)
Title: Process for forming metal film, on surface of synthetic resin substrate
Inventor: OGATA KIYOSHI
IPC: C23C14/46
Filed: 1992-04-10
Granted: 1997-12-30
Abstract: A metal film high in reflectivity and excellent in adhesion to a synthetic resin substrate even in the case where the metal film is sufficiently thin, is formed on a surface of the substrate by sputtering a metal target through an inert gas ion beam  drawn out of an ion source in a vacuum vessel.  An aluminum film coated matter formed by coating a surface of a synthetic resin substrate with an aluminum film, is characterized in that the aluminum film contains aluminum crystals at a portion in the film at a depth of not more than 600 .ANG. from a film surface thereof which contacts with the substrate.  The aluminum crystals has a relation in which a crystal axis <111> perpendicular to  a  (111) plane  is  perpendicular  or  substantially perpendicular to the film surface.  Also,  the aluminum crystals exhibit  a diffraction X-ray  spectrum of a (111) plane when measured by X-ray diffraction according to a diffractometer  method under  the  following  conditions: target: Cu, X-ray type: K.alpha. ray, measurement X-ray output: voltage 40 KeV,  current 30 mA,  longitudinal divergence limiting Sollar's slit: horizontal type, incident height limiting slit: 5 mm, incident slit: 0.4 mm, light-receiving Sollar's slit: vertical type, width limiting slit: 5 mm, diffraction X-ray monochromator: graphite horizontal plate, and diffraction method: 0/20 method.
Patent CA-2067246-C (CA)
Title: Adaptive video signal noise reduction system
Inventor: ZDEPSKI JOEL WALTER
IPC: H04N5/21
Filed: 1990-09-18
Granted: 2000-04-25
Abstract: A video signal transmission system includes. adaptive compansion circuitry to improve the signal-to-noise ratio of transmitted signals. A compandor (510) at the transmitter, and corresponding inverse compandor (600) at the receiver, are arranged to have a plurality of selectable compansion transfer characteristics. Selection (530, 660) of particular ones of the transfer characteristics is responsive to, e.g., predicted values (550, 570, 630, 640) of current signal.
Patent CA-2067650-C (CA)
Title: Method and apparatus for operating a computer-based file system
Inventor: BAUER ERIC JONATHAN
IPC: G06F17/30
Filed: 1992-04-30
Granted: 1996-10-22
Abstract: A computer-based file system includes files which may have one or more data streams associated there with. The files are accessed using a base name and the associated data stream(s) are accessed using a prefix and/or a suffix of the base name. For example, the base name may be used to select a data file while the prefix and/or suffix may be used to access data streams which, illustratively, may include information used by the file system in the processing of the data file. Using this file naming structure enables the file system to handle the base name file and its associated data streams together as one file using the standard file commands.
Patent CA-2084476-C (CA)
Title: Procede et dispositif pour la fabrication de gaz de synthese et application
Inventor: BOUCOT PIERRE
IPC: C07C1/04
Filed: 1992-12-03
Granted: 2003-04-01
Abstract: La présente invention concerne un procédé et un dispositif pour la fabrication de gaz de synthèse. Le réacteur selon l'invention comporte à l'intérieur d'une même enveloppe : une chambre de combustion non catalytique comportant au moins un organe d'injection de combustible et au moins un organe d'injection de comburant afin de réaliser une combustion partielle dans ladite chambre dite "à temps de séjour suffisant", et au moins un lit catalytique dans lequel débouchent les gaz issus de la chambre de combustion, et comportant en outre au moins un organe d'injection de comburant supplémentaire et au moins un organe d'injection de combustible. Le réacteur et le procédé selon l'invention peuvent être appliqués à toute fabrication chimique mettant en oeuvre du gaz de synthèse.
Patent CA-2086750-C (CA)
Inventor: BUCHANAN SCOTT J
IPC: B24D11/00
Filed: 1991-07-22
Granted: 2002-01-08
Abstract: A coated abrasive article having a printed coating of electrically conductive ink incorporated in the construction thereof, such that the buildup of static electricity during the use of the article is either reduced or eliminated. In another aspect, a method to make the same is taught.
Patent CA-2093568-C (CA)
Title: Garment and pleated, adjustable strap member therefor
Inventor: KUEN DAVID ARTHUR
IPC: A61F13/58
Filed: 1993-04-07
Granted: 2001-06-05
Abstract: A pleated, adjustable strap member is useful in securing a garment to a wearer. The strap member has first and second strap ends and can be attached to the garment adjacent the strap ends. The strap member also includes an elastic region and a pleated region, both located between the strap ends. The pleated region includes at least one Z-fold that is maintained with a releasable bond.
Patent CA-2108443-C (CA)
Inventor: ROBERTS JEFFREY B
IPC: H02H3/40
Filed: 1993-10-14
Granted: 2000-04-11
Abstract: A directional element measures the negative. sequence voltage and the negative sequence current and from those quantities produces a scalar quantity related to the negative sequence impedance of a power transmission line relative to the location of the directional element. The scalar quantity is then compared against two threshold quantity settings, one to determine a forward fault, the other to determine a reverse fault. The scalar quantity must be less than the forward threshold quantity for a forward fault and greater than the reverse threshold quantity for a reverse fault.
Patent CA-2108550-C (CA)
Inventor: KENNEDY WILLIAM J
IPC: A44B18/00
Filed: 1992-07-28
Granted: 2003-09-30
Abstract: A laminated hook fastener and a method for making a laminated extruded hook fastener strip on a roll having hook forming cavities in its surface by extruding plastic material into the interface between the forming roll and a second strip carried by a backing roll is provided. The second strip is firmly bonded to the fastener strip on the side opposite the formed hooks.
Patent CA-2110659-C (CA)
Inventor: SCHUH FRANK J
IPC: E21B7/06
Filed: 1993-12-03
Granted: 1996-11-12
Abstract: A horizontal well completion apparatus and method for heavy, viscous oil in a producing zone (114) are disclosed using a single well.  Hot injection fluid is injected into an injection string  (120),  and emitted through steam distribution holes (133) in the lower portion (120) of the injection string into the casing (116)  near perforations  (118).   A packer  (126) separates the upper well annulus (140)  from the lower well annulus (142).   Insulation (121) surrounds injection tubing string (120) between the packer (126) and the well head (111). Perforations (118) in the horizontal portion (112) of the well allow heated oil to flow into the lower annulus 42 in the horizontal portion (112) of the well where is picked up by the injected fluid and lifted to the surface of the well by a jet pump (128).  Temperature and pressure in the lower well annulus (142) are controlled by the temperature and pressure of the injection  fluid,  and  the  pumping  rate  of  the  produced fluids.
Patent CA-2111911-C (CA)
Title: Machine for making a package of food casing strands
Inventor: HENDRIKS IVO G
IPC: B65D71/00
Filed: 1993-12-20
Granted: 1998-12-01
Abstract: A machine for making a package of  food casing strands, wherein  the  package  has  a  hexagonal-like  cross  section, comprising a product holder for initially holding a plurality of the strands in a configuration having a hexagonal-like cross section, wherein the holder has an opening therein for admitting the strands into the holder; means for transporting the strands to the holder and for depositing the strands into the opening; shaker means for shaking the holder at predetermined times to ensure that the plurality of strands settle into the holder in the configuration having a hexagonal-like cross section; means for measuring and cutting a predetermined amount of stretch film, where the stretch film is a closed  loop used to encase the package of food casing strands; means for stretching and holding the stretch film into a shape of a polygon having a perimeter which is larger than the perimeter of the holder;  means  for moving the stretched film into a position proximate the holder; means for pushing all of the strands out of the holder and into the stretched closed loop of film; and, means for releasing the stretched film, wherein the film then relaxes about the plurality of strands to form the package of food casing strands.
Patent CA-2112399-C (CA)
Inventor: FERRANTE ANTONIO
IPC: A23L33/12
Filed: 1992-06-24
Granted: 2004-06-29
Abstract: It has been found that fatty acids having a carbon chain length of up to 30 carbon atoms, including two or more double and/or triple bonds, derivatives thereof and oxidation products have activity against protozoan and heiminth parasites, bacteria, fungi, C'hlamydia, Mycoplasma, Rickettsia and viruses. These compounds also have anti-tumour activity.
Patent CA-2114418-C (CA)
Title: Method for scanning photodiodes
Inventor: HAUGEN DOUGLAS GLENN
IPC: G01J3/28
Filed: 1993-05-27
Granted: 2002-02-19
Abstract: A method for electronically scanning a photodiode array (23) that is sequentially illumi-nated by individual light beams (6) by way of shutter mechanism (17) that has opening and closing transition times during which each light beam is only partially projected onto the array.    An integrating light projected on the respective photofliodes of the photodiode array (23) by each light beam over a predetermined period of time beginning after the opening transition time when the shutter mechanism (17) is fully open and end-ing prior to initiation of the closing transition time while the shutter mechanism (17) is still ful-ly open and producing electrical signals corre-sponding to the light integrated by the respective photodiodes over the predetermined period of time and storing the electrical signals for subse-quent use.