baber/WOPTO huggingface dataset:
Patent FI-94675-C (FI)
Inventor: KAARTINEN NIILO
IPC: B01L99/00
Filed: 1992-11-06
Granted: 1995-10-10
Abstract: The invention relates to a method and equipment for quantitatively dosing small amounts of liquid, especially in clinical or other similar wet-chemical analyzers. The dosing employs a liquid space (1) the volume of which can be changed and which is connected to a dosing channel (5) so that, by increasing or decreasing the volume of the liquid space, a suction or an injection through the dosing channel is achieved. According to the invention the liquid space (1) is formed by flexible bellows (2) which are freely movable back and forth to provide the reversible deformations which change the volume of the liquid space. The movements are effected using an actuator (3) which is connected to the bellows (2) without transmissions containing sliding surfaces, the actuator comprising precisely repeatable positions and which is calibrated according to the invention by measuring the sizes of the dosages produced by the movements between the positions. The dosing is effected after that by selectively repeating said calibrated movements.
Patent NO-161876-C (NO)
Inventor: KLAILA WILLIAM J
IPC: F17D1/18
Filed: 1986-10-09
Abstract: There are disclosed methods and apparatus for increasing the fluidity of hydrocarbon fluids, by applying to those fluids electromagentic energy in the frequency range of from about 300 megahertz to about 300 gigahertz.
Patent NO-167288-C (NO)
Inventor: TOURNEAU MICHAEL E LE
IPC: A61P11/08
Filed: 1988-01-26
Abstract: A group of variously methyl-substituted[1,2-c:3,4-c']dipyrazoles, cyclohepta[1,2-c:3,4-c']dipyrazoles, and cyclopenta[1,2-c:3,4-c']dipyrazoles of general formula: <CHEM> useful as bronchodilators are described herein. The compounds are prepared by reacting a 1,3-diketone with hydrazine or methylhydrazine to give tricyclic products optionally followed by catalytic dehydrogenation and/or alkylation with a strong base and methyl iodide to give various other compounds within the scope of the invention.
Patent NO-172698-C (NO)
Inventor: SAMUELSON HANS OLOF
IPC: D21C11/06
Filed: 1988-09-27
Abstract: Method of activating aqueous lignocellulosic material with a gas containing nitrogen oxide, followed by a delignification stage for the purpose of obtaining a high quality end product with no or only a slight effect on the environment. In accordance with the inventive method, the lignocellulosic material is brought into contact (18) with an oxygen-containing gas (19), and activating gas is separated from the lignocellulosic material during and/or subsequent to the activating process (9). The method is characterized by a) controlling the supply of oxygen-containing gas (12) such that the separated gas (27) contains at least 2 kg nitric oxide (NO) calculated on 1000 kg of dry lignocellulosic material, and by b) reacting the separated gas (27) in one or more stages (26) with absorption solution (25) whose original pH lies within the range 3-13.5, and by passing (28) the gas purified with the aid of absorption solution to atmosphere, or to a destruction plant optionally subsequent ot further purification of the gas.
Patent NO-179716-C (NO)
Inventor: BECHEM ULRICH
IPC: E21D9/10
Filed: 1988-11-11
Abstract: A process for drilling minerals, rock and the like, using rotating disc machines characterized in that materials to be drilled - if necessary rough cut or stress-relieved, preferably frontally in a direction of propulsion, but also radially outwards - are undercut layer by layer, each layer breaking into the open. The process is used in combination with a self-steering propulsion unit which is supported or guided on or by the previously machined/rough-cut working face so that the depth of undercutting remains constant.
Patent NO-177052-C (NO)
Inventor: HANSELMANN PAUL
IPC: C07C255/47
Filed: 1991-12-18
Abstract: A novel process for the preparation of cyclopropanenitrile derivatives is described, starting from a diol of the general formula 
<IMAGE>
 in which this diol is converted with thionyl chloride to a compound of the general formula 
<IMAGE>
 this is then oxidised to a compound of the formula 
<IMAGE>
 and further converted with a cyano compound to the final product of the formula 
<IMAGE>
Patent CA-2001099-C (CA)
Inventor: BARKER BERNARD A
IPC: F16K31/26
Filed: 1989-10-20
Granted: 1995-03-14
Abstract: A valve assembly of non-metallic construction which requires no tools for disassembly and servicing. A plunger provided with longitudinal channels is activated by a double arm yoke which is acted upon by the float arm. Dual ports provide paired inlet streams directed away from the lever and float.
Patent CA-2002494-C (CA)
Title: Oxidation of saturated hydrocarbon chains
Inventor: HUYBRECHTS DIANA R C
IPC: C07C29/48
Filed: 1989-11-08
Granted: 2001-07-17
Abstract: Saturated hydrocarbon chains are oxidised using a titanium containing silicalite catalyst having an infra red absorption band around 950 cm-1 preferably in solutions, the chains may be alkanes or alkyl groups of alkyl cyclic compounds.
Patent CA-2004185-C (CA)
Inventor: YAMASHITA YOSHINORI
IPC: B60W10/10
Filed: 1989-11-29
Granted: 1994-02-01
Abstract: CLUTCH PRESSURE CONTROL DEVICE FOR CONTINUOUSLY VARIABLE TRANSMISSION               ABSTRACT OF THE DISCLOSURE      A continuously variable transmission has a fixed pulley piece and a movable pulley piece supported on the fixed pulley piece so that the movable pulley piece can be moved toward and away from the fixed pulley piece, the width of a groove between the pieces being increased or decreased by changing hydraulic pressure so that the rotational radius of a belt looped around the pulleys is increased or decreased to vary a belt ratio. A clutch pressure control device includes a hydraulic clutch for which engagement and disengagement is controlled accord-ing to various control modes, and a control arrangement which calculates a target clutch pressure with reference to a slip] amount of the hydraulic clutch and which feedback controls the target clutch pressure so that the slip amount of the clutch is maintained substantially constant.
Patent CA-2008397-C (CA)
Title: Billfold and multi-pocket liner therefor
Inventor: SCHEUNEMANN ROY
IPC: A45C1/06
Filed: 1990-01-23
Granted: 1994-11-01
Abstract: The present invention provides a billfold, wallet, or the like for carrying a plurality of cards, such as credit cards, in shingled and partially exposed relationship to one another whereby a desired card can be readily selected and withdrawn.         The billfold has a pair of flexible walls which are sewn together to form an envelope-like opening.  One of the walls has affixed thereto a multi-card liner.  The liner includes a support member which has at least two vertical slits extending from a bottom edge to provide a downwardly extending tongue member.  A plurality of card-receiving leaves is then provided.  Each of the leaves has a tongue-receiving slit extending in a horizontal direction. The leaves are strung along the tongue of the support member in a vertically aligned, partially overlapping array to form the integral liner of the invention having a series of single edge overlying cavities arranged in shingled relationship for the reception of cards.  At least one of the multi-card liners is affixed to one of the flexible walls of the billfold to provide a billfold structure having an envelope-like opening, one side of which has a series of card receiving cavities arranged in shingled relationship for the reception of cards.
Patent CA-2010851-C (CA)
Title: Heater for mobile units
Inventor: KENNER ERICH
IPC: F23N5/20
Filed: 1990-02-23
Granted: 1995-01-03
Abstract: ABSTRACT OF THE DISCLOSURE         In space heaters with pressure atomization burners, which have a small  combustion chamber volume, good mixing of air with fuel is achieved  practically only in the case of relatively high air flow velocities, which  leads, however, to difficulties in terms of ignition, especially at high  operating voltages and low temperatures.  The blower motor is therefore  started first when putting the heater into operation, after which it is  disconnected from the power source, so that the speed will again decrease, after which the high-voltage ignition and the fuel supply are turned on, so  that the ignition can take place at reduced blower speed, and the high-voltage  ignition is turned off and the blower motor is restarted after the flame has  been recognized in the burner.
Patent CA-2013624-C (CA)
Title: Process for the removal of chlorine from off-gases
Inventor: HARTMANN ACHIM
IPC: C22B34/12
Filed: 1990-04-02
Granted: 1998-02-24
Abstract: The invention relates to a process for the removal of chlorine from off-gases which continuously or sporadically contain small amounts of chlorine, through scrubbing them with a ferrous chloride-containing aqueous solution in a scrubbing system. The solution used is obtained in dissolving a solids mixture which results from the chlorination of a titaniferous and ferriferous feedstock material and essentially contains-ferrous chloride. This solution is used in particular for the scrubbing of off-gases formed in the production of titanium dioxide by the chlorination of titaniferous and ferriferous feedstock material, thus generating titanium tetrachloride and ferrous chloride, and by the reaction of the titanium tetrachloride with oxygen-containing gases. It is preferably the solids mixture separated in this process from the chlorination mixture in a condensation step that is dissolved in the process of the invention, and at least part of the resulting solution is used for the scrubbing of the off-gas. Known devices can be used for scrubbing, e.g. packed columns.
Patent CA-2014495-C (CA)
Title: Barrel injector screw
Inventor: KOENIG LARRY
IPC: B02C19/22
Filed: 1990-04-12
Granted: 1993-11-09
Abstract: Abstract of the Disclosure An auger shredder and feeder system which includes a primary housing for receiving material to be ground and shredded, a primarily auger rotatably mounted within a grinding chamber formed in the housing, an extrusion tube for receiving material ground and shredded within said grinding chamber, a secondary housing having a generally tubular side wall and communicating with the extrusion tube, and a secondary auger rotatably mounted within the secondary housing.  Material deposited in the primary housing is crushed and shredded, then pumped by the primary auger through the extrusion tube where forms a plug of material. As the plug progresses into the secondary housing, it is further shredded and compressed by the secondary auger.
Patent CA-2019527-C (CA)
Title: Signature verification data compression for storage on an identification card
Inventor: GUNDERSEN STEVEN C
IPC: G06F3/0488
Filed: 1990-06-21
Granted: 1996-01-30
Abstract: Apparatus  and  methods  are  described  which  take advantage  of  the  peculiar  characteristics  of  dynamic signature data while segmenting and compressing such data for storage on a limited capacity device.  Compression is accomplished   by   digital   oversampling,    segmenting, filtering,  decimating and later interpolating reference signature data,  thereby allowing  storage  in compressed form without significant matching degradation.   The pen down  and  pen  up  information  which  define  signature segments  is  separated  from  the  pressure  waveform  and stored in a separate array for each reference signature. The  acceleration  and pressure data  are  then  filtered, decimated and stored for each reference signature.  Later, during identity verification, the stored acceleration and pressure  data  are  restored to  an  oversampled  rate  by interpolation.   To  verify  the  identity  of  a  person supplying a trial  signature,  each segment of the trial signature is compared with corresponding segments of one or more of the stored reference signatures.
Patent CA-2026443-C (CA)
Title: Device for supporting the mechanical and electrical control members of a toaster and toaster comprising such a device
Inventor: BALANDIER JEAN-MARIE
IPC: A47J37/08
Filed: 1990-01-26
Granted: 1996-01-30
Abstract: The device is intended to support the mechanical and electrical members of a toaster (1).        The device consists of a plate (2) in plastic material comprising protuberances or tongues (3, 4, 5, 6) molded in the plastic material and projecting on one of the  faces  of  the plate  (2),  these protuberances  or tongues being shaped in order to receive and to ensure the fixing of conducting (7, 8) or mechanical elements by translation of the latter perpendicularly to the plate (2), these elements being intended to form the mechanical and electrical control members of the toaster.        Application particularly in vertical toasters.
Patent CA-2028627-C (CA)
Title: Filter device
Inventor: LINNERSTEN STAFFAN B
IPC: B01D46/24
Filed: 1990-10-26
Granted: 1999-12-07
Abstract: The disclosure describes a filter device which comprises at least an outer and an inner hollow filter element, each having first and second ends. A first end cap is sealed to the first end of the inner filter element. A second end cap is sealed to the second ends of the outer and inner filter elements wherein the inner filter element is disposed inside and spaced from the outer filter element.      The inner filter element can be tapered and can be shorter than the outer filter element. The filter device may further comprise additional filter elements.
Patent CA-2030136-C (CA)
Title: Ceramic block filter with co-fired coupling pins
Inventor: MANSSEN KEITH R
IPC: H05K3/34
Filed: 1990-11-16
Granted: 1994-08-30
Abstract: A ceramic block filter (100) includes coupling pins (101 and 102) disposed in holes (124 and 125) in corresponding electrodes (121 and 122) for interconnecting the filter to radio frequency devices, such as a radio transceiver. During manufacture of the filter (100), the coupling pins (101 and 102) are bonded to conductive material (131) of the holes (124 and 125) and corresponding electrodes (121 and 122) when the rest of the conductive material (160) is fired. To facilitate the electrical bond during the manufacturing process, the coupling pins (101 and 102) may be silver or silver plated and co-fired at the same time. Since the coupling pins (101 and 102) are fired at the same time as the rest of the conductive material, a reliable and inexpensive bond is achieved between the coupling pins (101 and 102) and the conductive material of the holes (124 and 125) and corresponding electrodes (121 and 122).
Patent CA-2033536-C (CA)
Title: Apparatus for forming metallic units
Inventor: FRITSCH RUDY
IPC: B21D26/055
Filed: 1991-01-03
Granted: 1994-04-26
Abstract: APPARATUS FOR FORMING METALLIC UNITS                 Abstract of the Disclosure Each of the metallic units has a concave portion bounded by  a  peripheral  edge which  has  a  predetermined shape.   The apparatus includes an upper member and a lower member and a tool is adapted to be mounted on the upper or lower member.    The tool comprises a wall-like structure having a bottom edge which defines a shape corresponding with the predetermined shape.   The upper member and lower member are arranged to be movable relative one to the other, and a workpiece is placed between the two members and the members are brought together until the tool is clamped abuts the workpiece so that the tool and workpiece are clamped together in airtight engagement.    Air under pressure is applied under the workpiece to form the workpiece into a concave shape.
Patent CA-2037530-C (CA)
Title: Leg warmers
Inventor: WRUCK WADE
IPC: A41D1/08
Filed: 1991-03-04
Granted: 1994-01-18
Abstract: LEG WARMERS               ABSTRACT OF THE DISCLOSURE           Leg warmers which include a panel having at least one layer of thermal insulation and a closure system.   The panel is designed to wrap around the wearer's leg from foot to crotch,  and the closure system provides an essentially moisture and airtight seam between the edges of the panel.  Different ones of the leg warmers feature:  (1) the combination of a zipper-type fastener and a pile- or snap-type fastener which holds the leg warmer on the wearer's leg, making it easier to start and close the zipper; (2) multiple zipper slides which also make it easy to provide ventilation; (3) pile-type fasteners at the bottom of the leg warmer which allows it to be adjusted to a snug, air, snow, and moisture excluding fit with the wearer's  leg;   (4)  an  adjustable  suspender  for attaching the leg warmer to the wearer's belt and thereby holding it up; and (5) various combinations of the foregoing, innovative features.
Patent CA-2039108-C (CA)
Inventor: PURCELL LAUREN M
IPC: G01Q60/00
Filed: 1991-03-26
Granted: 1994-11-08
Abstract: ABSTRACT OF THE DISCLOSURE         Apparatus and methods for identifying the nature of an unidentified substrate present in trace amounts of known gaseous or liquid media such as air or water include collecting a sample of the substance in the media, filtering and concentrating the sample, depositing at least a portion of the sample on a known substrate, analyzing the deposited sample utilizing SETM, NFOM and/or AFM techniques to  form one or more  images  characteristic of the unidentified substance,  and then identifying the substance by comparing the images so obtained to images of known substances obtained using the same techniques.
Patent CA-2039825-C (CA)
Title: Optical fiber dispensing system
Inventor: REDFORD GARY R
IPC: G02B6/44
Filed: 1991-04-04
Granted: 1995-02-07
Abstract: An   optical   fiber  dispensing  system  (30) includes  a  canister  (42)  within  which an optical fiber  (12)  is wound, and a helix dampener (40) that reduces  the  helical  diameter  of the optical fiber (12)  as  it is paid out from the canister (42) along a  payout  axis  (20).  The canister (42) is either a cylinder  or  a  slightly  tapered  cone.   The helix dampener  (40)  is  a  structure overlying the payout end  of  the  canister  (42) and extending beyond the canister  (42)  along  the  payout  axis  (20).   The interior  surface  of the helix dampener (40) defines a  locus  (36)  of  points  whose  distance  from the payout  axis  (20) decreases with increasing distance from  the  canister  (42), to an opening (38) through which  the  optical  fiber  (12)  is  dispensed.  The interior  surface  of  the  helix  dampener  (40)  is preferably  as  a  series of discontinuous rings (48) whose   central   opening   diameter  decreases  with increasing  distance  from the canister (42), or as a smooth  continuous  axially  symmetric  surface  (84) whose  distance  from  the payout axis (20) decreases with  increasing  distance  from  the  canister (42). The  gradual reduction of the diameter of the helical pattern  of  the  optical  fiber  (12)  by  the helix dampener  (40)  stabilizes  the  path  of the optical fiber  (12)  prior  to its exiting from the dispenser (30).
Patent CA-2039896-C (CA)
Title: Thermal printer
Inventor: FUKUMOTO HIROSHI
IPC: B41J13/02
Filed: 1991-04-05
Granted: 1996-05-14
Abstract: A thermal printer comprises: a platen roller on which a recording sheet is wound in such a manner that said recording sheet is laid over an angular part of the cylindrical wall of said platen roller, said plate roller conveying said recording sheet in a predetermined direction;  a thermal head pushed against said platen roller, to heat heating points selected for transferring ink from an ink sheet onto said recording sheet; sheet pulling means for pulling said recording sheet in said predetermined direction; a pinch roller on the sheet supplying side,  for pushing said recording sheet against said platen roller with a predetermined force of depression so that said recording sheet is wound on said platen roller;  and pinch roller rotating means provided at at least one end of said pinch roller, for rotating said pinch roller at a peripheral speed lower than that o, said platen roller.
Patent CA-2040295-C (CA)
Title: Endless belt and machine for shrinking fabrics
Inventor: RICH GERARD
IPC: D21F7/08
Filed: 1991-04-11
Granted: 2004-04-06
Abstract: The present invention relates to an endless belt co-operating with a cylinder for shrinking a sheet material interposed between the belt and the cylinder. This endless belt (5) is characterized in that it is made from two materials one of which constituting the thickness fraction (10) of the belt towards the sheet material is more flexible than the other material constituting the other thickness fraction or remaining thickness (11) of the belt so as to confer upon the latter differential elasticity properties adapted to the material to be shrunken. The endless belt according to the invention is intended for instance to fit the shrinkage station of a machine for shrinking fabrics.
Patent CA-2044226-C (CA)
Title: Method and apparatus for producing a surface layer on a metallic workpiece
Inventor: GUILLOUD ROGER
IPC: F01L3/24
Filed: 1991-06-10
Granted: 2001-03-13
Abstract: The surface of a workpiece is provided with a surface layer. Initially, the workpiece is inductively heated by a HF/MF generator to a first temperature and subsequently heated further by a laser beam with coating material being applied to the region of the laser beam in an amount sufficient to form a surface layer on the workpiece. The generator and the laser source are able to operate simultaneously to effect a high duality surface layer of relatively thin thickness.
Patent CA-2052269-C (CA)
Title: Sorption of trialkyl arsines
Inventor: NOWACK GERHARD P
IPC: B01D53/02
Filed: 1991-09-25
Granted: 1996-12-17
Abstract: Trialkyl arsine (in particular trimethyl arsine) is removed from a fluid (e.g., a hydrocarbon-containing gas) by contacting the fluid with a sorbent material comprising (a) elemental sulfur, and (b) an inorganic support material, preferably alumina and/or silica and/or titania and/or activated carbon.
Patent CA-2054718-C (CA)
Title: Magnetic inspection apparatus for thin steel strip
Inventor: ANDO SEIGO
IPC: G01N27/72
Filed: 1991-02-22
Granted: 1996-08-20
Abstract: In a magnetic inspection apparatus for a thin steel strip of the invention, a pole-to-pole distance of a magnetizer, which is housed in a hollow roller contact-ing a traveling thin steel strip to oppose the thin steel strip, is set between twice and eight times a dis-tance between magnetic poles and the thin steel strip. A position of a magnetic sensor in the travel direction of the thin steel strip is shifted from the central position of the magnetic poles to a travel direction side by a small distance.  In this invention, a pair of hollow rollers are provided to sandwich upper and lower surfaces of a traveling thin steel strip, and magnetic sensors are respectively housed in the hollow rollers. As a result, a position of a defect in the direction of the thickness of the thin steel strip, and a defect size can be accurately detected.  In a magnetic inspection apparatus for a thin steel strip of the invention, a magnetic detection circuit for detecting magnetic flux leakage caused by a defect in the interior or on the surface of a thin steel strip uses an over-saturation type magnetic sensor constituted by applying a detection coil around a ferromagnetic core.  As a result, a defect detection sensibility and a defect detection precision are greatly improved.
Patent CA-2055199-C (CA)
Title: Transparent high impact alloy
Inventor: BLASIUS WILLIAM G JR
IPC: C08L21/00
Filed: 1991-11-08
Granted: 2003-10-07
Abstract: A tough polymer alloy is provided and comprises: (i) from 30 to 82 weight percent of a brittle polymer; (ii) from 3 to 50 weight percent of a rubbery polymer; and (iii) from 15 to 67 weight percent of a ductile polymer provided that the ductile polymer and the rubbery polymer are at least compatible.