baber/WOPTO huggingface dataset:
Patent CA-2006665-C (CA)
Title: Process for purification of 1,2-bis (nicotinamido) propane
Inventor: IWAOKA TOMOYASU
IPC: C07D213/82
Filed: 1989-12-27
Granted: 1998-02-17
Abstract: A novel process for purifying crude 1, 2-bis(nicotinamido)propane obtained by the reaction of nicotinic acid with 1,2-propanediamine.  This process comprises forming 1,2-bis(nicotinamido)propane dinitrate from the crude 1,2-bis(nicotinamido)propane, suspending the dinitrate in an organic solvent, adding an alkali or an alkaline solution to the suspension to dissociate the free 1,2-bis(nicotinamido)propane, extracting it from the suspension with a solvent, and removing the solvent to isolate the purified product.       According to this process, crude 1, 2-bis(nicotinamido)propane can be efficiently purified to give the product having a high purity.
Patent CA-2011501-C (CA)
Title: Self-aligning bearing
Inventor: DYE CLIFFORD L
IPC: F16C35/02
Filed: 1990-03-05
Granted: 1993-03-23
Abstract: ABSTRACT OF THE DISCLOSURE       A  self-aligning  bearing  having  a  generally cylindrical body including an outer cylindrical surface and circumferentially spaced projections formed on the body having an outer diameter slightly greater than the diameter of the socket in which the bearing is received.   The bearing is provided  with a bore to rotatably receive the shaft of a rotational component and is pressed into a generally cylindrical socket wherein the projections shave at least some axial length of the inside wall of the socket to  a precise  fit preventing rotation of  the bearing therein.  The precise fit extends a relatively short axial distance, resulting in clearance features between the outer surface of the assembled bearing and the socket wall which permit limited angular displacement of the bearing and allow the bearing to self align relative to the socket and yet maintain sufficient alignment to permit easy assembly of a shaft within the bearing.
Patent CA-2029577-C (CA)
Inventor: CARTER STEVEN HOWARD
IPC: H04L29/06
Filed: 1990-11-08
Granted: 2002-06-18
Abstract: A multiport repeater for a local area network installation has (in addition to its conventional functions) means for storing access rules for the items of equipment connected to it. It reads a portion of each frame, which may be all or part of the destination address segment and/or of the source address segment and/or of the control segment of each incoming data frame, or it could be a frame or protocol identifier incorporated in opening bytes of the data segment. It compares the data that it reads with the stored access rules to determine whether the frame is permitted or not. If not, it corrupts the frame which it is in the course of re-transmitting, for example by overwriting it with meaningless digits. It may also report the source address, destination address and reason for deciding to corrupt the frame to the network controller.
Patent CA-2030669-C (CA)
Inventor: ALFORD RAYMOND E
IPC: C25B11/06
Filed: 1990-11-22
Granted: 1999-06-29
Abstract: Metal electrodes provided with a coating consisting essentially of a mixed oxide compound of (i) a compound of the general formula ABO4, having a structure of the rutile-type, where A is an element in the trivalent state selected from the group consisting of Al, Rh and Cr, and B is an element in the pentavalent state selected from the group consisting of Sb and Ta, (ii) RuO2 and (iii) TiO2; wherein the mole fraction of ABO4 is between 0.01 and 0.42, the mole fraction of RuO2 is between 0.03 and 0.42, and the mole fraction of TiO2 is between 0.55 and 0.96.  The electrodes have low precious metal content, provide improved durability and improved current efficiency-anodic overvoltage performance.  They are used in the electrolysis of chloride containing liquors in the production of, for example, chlorine and more particularly, chlorate.
Patent CA-2030764-C (CA)
Title: Harvester with transverse working elements
Inventor: WATTRON BERNARD
IPC: A01D80/00
Filed: 1990-11-23
Granted: 2000-10-24
Abstract: The present invention relates to a mower comprising a group of working members (19) extending transversely to the direction of advance (12) during work. It is notable in that: 
 
  a) each driving member (145, 146) comprises a bevel gear (159, 160, 162, 163); 
  b) each central carrier member (133, 134) is connected rigidly to the corresponding bevel-gear housing (145, 146); and 
  c) the two central carrier members (133, 134) are directly and/or indirectly connected rigidly to one another. 
 
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Patent CA-2033269-C (CA)
Inventor: MORGAN NOREDIN H
IPC: C09D5/24
Filed: 1990-12-27
Granted: 2003-03-18
Abstract: A corrosion inhibiting, EMI/RFI shielding composition is provided comprising a polyurethane resin which comprises a hydro~y or amine functional first polymer and an isocyanate terminated second polymer, a stabilized conductive filler, and an azole. In one embodiment of the invention a coating is provided comprising a polyurethane which comprises a fluoroolefin vinyl ether and an isocyanate terminated castor oil prepolymer, a stabilized copper powder, and a triazole selected from the group consisting of alkyl substituted aromatic triazoles and other azoles. The invention further provides a method of coating a substrate with a coating of the invention in order to provide EMI/RFI shielding and prevent corrosion, and a substrate thus coated.
Patent CA-2054399-C (CA)
Title: Laboratory traction test
Inventor: LAZERATION JOEL JOSEPH
IPC: G01N19/02
Filed: 1991-10-24
Granted: 2000-05-02
Abstract: A method and apparatus for predicting tire traction characteristics of tread compounds are provided. The method makes possible the determination of such characteristics without building tires. Also, the compounds can be easily characterized for a large number of different road surfaces and many different weather conditions. In the method, about 2 to 10 gms of tread compound is molded into a sample which can be tested for traction on the apparatus. Peak traction, slide traction and other traction characteristics of the compound can be correlated with traction properties of known compounds, thereby establishing the expected traction properties of the test compound in a tire.
Patent CA-2061373-C (CA)
Title: Alkaline resol phenol-aldehyde resin binder compositions
Inventor: SMITH GARRY
IPC: C08L61/04
Filed: 1992-02-17
Granted: 2001-05-29
Abstract: A binder composition for producing articles of bonded particulate material such as foundry moulds or cores comprises an alkaline aqueous solution of a resol phenol-aldehyde resin, an oxyanion which can form a stable complex with the resin, and pyrrolidone or an N-substituted pyrrolidone, and the amount of alkali present in the solution is sufficient to substantially prevent stable complex formation between the resin and the oxyanion. Bonded articles are produced by passing carbon dioxide gas through articles formed from a mixture of particulate material and the binder composition so as to produce stable complex formation and curing of the resin.
Patent CA-2065793-C (CA)
Title: Cigarette and wrapper with controlled puff count
Inventor: BALDWIN SHERYL D
IPC: D21H21/50
Filed: 1992-04-10
Granted: 2002-04-02
Abstract: A paper wrapper for a cigarette is prepared using fine particle size calcium carbonate as the mineral filler for the purpose of burn rate, puff count and tar delivery control.
Patent CA-2066785-C (CA)
Title: Glycosaminoglycans in the treatment of diabetic nephropathy and diabetic neuropathy
Inventor: MARCHI EGIDIO
IPC: A61K/
Filed: 1992-04-22
Granted: 1999-01-12
Abstract: The   object  of  the  present  invention   is   the manufacture  of a medicine for the use of  glycosaminoglycans in the prevention and treatment of some pathologies caused by diabetes, like diabetic nephropathy and diabetic  neuropathy.        The   effectiveness  of  glycosaminoglycans  in  the prevention and treatment of said pathologies  has been  shown by  the treatment with some glycosaminoglycans of male albino rats  made   diabetic  by treatment  with  streptozotocin  or alloxan  and by the subsequent determination of   morphologic and  clinic parameters like the thickness  of the  glomerular basal membrane,  the number of the glomerular anionic charges and  albuminuria  in case of diabetic nephropathy,  and  like the  levels  of  substance  P  and  Met-Enkephalin   in  some intestinal  zones,  like  duodenum and jejunum,  in  case  of diabetic neuropathy.
Patent CA-2066840-C (CA)
Title: Adjustable measuring container
Inventor: ROBBINS RODNEY W
IPC: G01F19/00
Filed: 1992-04-22
Granted: 1997-09-30
Abstract: The measuring container has a body with a bowl at one end.  A sliding cover is provided with a sliding barrier member or dam which moves longitudinally in the bowl to different positions to adjust the capacity of the bowl.  The sliding dam or barrier member has a cover which extends by a distance sufficient to cover the opening between the dam and the rear wall of the bowl at all positions of the barrier member so as to prevent materials from entering that opening.
Patent CA-2072649-C (CA)
Title: Methods and materials for expression of human plasminogen variant
Inventor: HIGGINS DEBORAH L
IPC: A61K38/00
Filed: 1990-10-31
Granted: 2003-10-21
Abstract: A cleavage-resistant plasminogen molecule is provided that is conveniently produced in recombinant cells by expression of a nucleic acid sequence encoding the plasminogen molecule. Preferably the plasminogen is a sequence variant with a modifica-tion in its two-chain cleavage site. The plasminogen molecule may be purified, acylated, complexed with acylated or non-acylated fibrinolytic enzymes, and formulated into pharmaceutical compositions for use in thrombolytic therapy.
Patent CA-2075288-C (CA)
Title: Anthracycline-conjugates
Inventor: ANGELUCCI FRANCESCO
IPC: A61K47/48
Filed: 1991-12-03
Granted: 2004-02-17
Abstract: A conjugate of formula (1); wherein the moiety A-O- is the residue of any anthracycline of formula A-O-H bearing at least one primary or secondary hydroxyl group; a is an integer of from 1 to 30; W is a residue of formula (2), wherein B represents a C1-C6 alkylene group optionally hetero interrupted and m is 0 or 1; Z is a spacer group and T is a carrier moiety. The conjugates of formula (1) of the present invention are useful antitumor agents since they contain an acetalic bond which releases the parent drug A-O-H upon hydronium-ion-catalyzed hydrolysis or "in vivo"  enzymatic cleavage.
Patent CA-2076936-C (CA)
Title: Water saver for flush toilet
Inventor: SMITH RICHARD S
IPC: E03D1/30
Filed: 1992-08-26
Granted: 1997-01-07
Abstract: A water saver unit for use with a flush toilet having a tank, a flush handle, a tank drain opening and a flapper valve support,  with  a  flapper  valve having  a  flapper  element  for mounting on the flapper valve support, and a strap for connecting the  flapper  element  to  the flapper  handle,  with  the  flapper element having a  solid disk with upper and  lower  surfaces, a center section and a rim,  with radially extending ribs on the upper surface between the center section and rim, and with the bottom surface tapering downward from the rim toward the center section. A float is positioned on the strap to provide bouyancy to the flapper valve as long as the float is below the water level in  the  toilet  tank.   The  flapper  element  solid  disk  is  of substantially uniform thickness between the  center section and rim,  and the bottom surface taper is in the order of 5 to 20 degrees, preferably about 10 degrees. The center section includes a cylindrical portion  with  the  ribs abutting the cylindrical portion, and with a generally flat section at the center of the lower surface, and with the flapper element molded in a single piece.
Patent CA-2083187-C (CA)
Title: Air-oil full hydraulic reservoir tank
Inventor: MASTERS HOWARD A
IPC: B66F7/18
Filed: 1992-11-18
Granted: 1995-11-21
Abstract: An air-oil full hydraulic reservoir tank of the type used with a vehicle lift system.  The tank includes a tank wall forming the tank and a discharge pipe within the tank.          The discharge pipe includes an inlet tube portion, an outlet tube portion, each extending through an upper portion of the tank, and a connection, such as a connecting loop portion or a passageway in a casting, within a lower portion of the tank, that joins the lower ends of the inlet and outlet tube portions.  A low oil control mechanism within the tank blocks the flow of hydraulic oil from the inlet tube portion to the outlet tube portion when the level of the oil is below a predetermined level, thereby preventing the flow of air through the outlet tube.  The inlet tube may be perforated, and the low oil control mechanism may be a float within the inlet tube that rests on a valve seat to block the flow of air into the outlet tube.  A connecting pipe joins the reservoir tank to a hydraulic lift cylinder, with interposed control valves.  The hydraulic lift cylinder raises and lowers a piston as air is forced into or bled from the reservoir tank, forcing oil from the reservoir tank into and from the lift cylinder.
Patent CA-2090968-C (CA)
Title: Flavor composition for pet food
Inventor: GIERHART DENNIS L
IPC: A23K1/175
Filed: 1991-08-28
Granted: 2002-01-08
Abstract: A palatability enhancer composition for pet food comprises a pyrophosphate salt or an acid phosphate salt. The palatabili-ty enhancer may also include at least one of the following: an organic acid, a flavor, and phosphoric acid.
Patent CA-2096621-C (CA)
Inventor: DICKHUT HEINRICH
IPC: B29C48/13
Filed: 1993-05-19
Granted: 1995-08-01
Abstract: An apparatus for forming tubular tile, including an endless trackway having at  least two  substantially straight portions defining first and second molding sec-tions, a plurality of mold blocks supported for movement about the trackway, and a plurality of mating mold blocks supported for mating with the first mold blocks along each molding section to form a segment of a corrugated molding tunnel.  Extruders introduce moldable material at the be-ginning of each molding section, and the material is con-formed to the molding tunnel along the molding sections for forming the tile, with the mold blocks being separated when they move past the end of each molding section.  The ex-truders are mounted for movement toward the beginning of the two molding sections when initiating tile formation therein.   A plurality of mold assemblies each support a pair of mold blocks for movement about the trackway, and the mold blocks are supported thereon for pivotal movement about an axis extending substantially in the direction of movement of the mold assemblies about the trackway.  Roll-ing followers associated with each of the mold blocks and a cam surface associated with the trackway cooperate to position the mold blocks as desired throughout their move-ment.
Patent CA-2102035-C (CA)
Inventor: LAWSON DAVID F
IPC: C08F236/04
Filed: 1993-10-29
Granted: 2006-12-19
Abstract: An acyclic alkane soluble anionic polymerization initiator includes a mixture of from about 90 to about 10 parts by weight of a lithio amine having the general formula A1Li and from about 10 to about 90 parts by weight of at least one other lithio amine having the general formula A2Li. A1 and A2 are selected from the dialkyl, alkyl, cycloalkyl and dicycloalkyl amine radicals and cyclic amine radicals. There is also provided a method of forming a mixture of anionic polymerization initiators, a functionalized polymer and a method of forming a functionalized polymer.
Patent CA-2105486-C (CA)
Title: Therapeutic nucleosides
Inventor: PAINTER GEORGE ROBERT III
IPC: C07D411/04
Filed: 1992-03-05
Granted: 2003-10-28
Abstract: The use of a 1,3-oxathiolane nucleoside analogue and pharmaceutically acceptable derivatives thereof for the treatment of hepatitis B virus infections is disclosed. Pharmaceutical formulations are also provided.
Patent CA-2107700-C (CA)
Inventor: PEDERSON JANE MARIE
IPC: A61B19/08
Filed: 1993-10-05
Granted: 1995-10-10
Abstract: A universal inner diameter mounting ring contains an annular groove within its inner circumference, the ring being  integral with a microscope drape.   A microscope adapter housing having a universal outer diameter with a protruding annular ring around its circumference engages the groove on the mounting ring.  The adapter engages the inner mounting threads of a microscope body at a first end and the threads of an objective lens housing at a second end.
Patent CA-2110340-C (CA)
Inventor: PERRIGNON DE TROYES FRANCOIS
IPC: H02B1/044
Filed: 1993-11-30
Granted: 1997-12-02
Abstract: This is an apparatus support of the kind comprising, on two opposing sides (19A) groove means (20) suitable for engaging it on the body of a duct having flanges facing each other. According to the invention, it comprises groove means (20) suitable for such an engagement on two other sides (19B) which, alternating with the sides (19A), are arranged in the form of a rectangle with the latter. Application to the mounting of any apparatus, and especially of any electrical apparatus, on the body of a duct. <IMAGE>
Patent CA-2117208-C (CA)
Title: Device for removing brake drum and hub assembly
Inventor: GUNLOCK DANNY E
IPC: B60B31/00
Filed: 1994-03-08
Granted: 2000-06-06
Abstract: The device attaches to and carries the brake drum and/or hub assembly of a vehicle, especially large vehicles such as commercial trucks and including semi-tractors and trailers. The device includes a hand truck, a jack that is attached to the hand truck, and an assembly attachment unit, operably connected to the jack, for securely attaching the device to the assembly.      The jack provides height adjustment capability for the assembly attachment unit along an axis of the hand truck. Angle adjustment means also are provided for adjusting the angle of the assembly attachment unit to accommodate the angle presented by an exterior surface portion of the brake drum and/or hub assembly.
Patent CA-2122685-C (CA)
Inventor: FUJIKAMI JUN
IPC: H01B12/02
Filed: 1994-05-02
Granted: 1997-02-04
Abstract: Provided is an insulated oxide superconducting cable conductor having a high critical current and a high critical current density.  The insulated oxide superconducting cable conductor comprises an elongated former, a plurality of tape-shaped multifilamentary oxide superconducting wires which are wound on the former at a bending strain factor of not more than 0.5 %, and a spirally wound tape-shaped insulating material covering the tape-shaped multifilamentary oxide superconducting wires.  The tape-shaped multifilamentary superconducting wires are superposed on the former in layers, whereby stabilizing materials of the superposed superconducting wires are in contact with each other.  The tape-shaped insulating material consists essentially of a material which is contracted at a thermal contraction rate of at least three times that of the tape-shaped multifilamentary wires by cooling from a temperature of 298 K to that of 77 K.  The tape-shaped insulating material can apply a pressure to the superposed multifilamentary superconducting wires toward the former while improving electrical contact between the superposed multifilamentary superconducting wires by cooling in employment.  The former can be formed of a flexible tube.
Patent CA-2131347-C (CA)
Inventor: CRAIG W SCOTT
IPC: B63H11/08
Filed: 1994-09-01
Granted: 1999-04-20
Abstract: A system for mounting a jet propulsion unit to a watercraft having a hull with a mounting opening, the jet propulsion unit including a power head and a jet pump housing secured to the power head, the mounting system including a power transmission portion disposed on the jet pump housing, and a mounting apparatus associated with the transmission portion for mounting the propulsion unit directly to the hull.
Patent CA-2139317-C (CA)
Title: Use of a vinyl lactam derived terpolymer as foaming agent in aerosol-forming compositions, and composition thereby obtained
Inventor: DUPUIS CHRISTINE
IPC: C09K23/00
Filed: 1994-05-02
Granted: 2009-02-10
Abstract: The invention relates to the use of a terpolymer as a single or auxiliary foaming agent in aqueous hair or skin treatment compositions, packaged in an aerosol device and capable of forming a foam after expanding upon exposure to air. Said terpolymer is composed of 25 to 90 % vinyl lactam, 1 to 55 % unsaturated carboxylic acid and 1 to 20 % alkyl acrylate or methacrylate containing at least 6 carbon atoms. Cosmetic or dermatological compositions packaged in an aerosol device, foaming upon exposure to air and containing the terpolymer are also described.
Patent CA-2139383-C (CA)
Title: Media control valve
Inventor: SHANK JAMES D JR
IPC: B24C7/00
Filed: 1994-12-30
Granted: 1998-09-29
Abstract: A media control valve used to meter and dispense an amount of abrasive media from a supply pot to a compressed air line for blast cleaning comprises a vertical media passage communicating with the supply pot and an air flow tube and a restricting orifice in the media passage to meter the amount of abrasive media flowing therethrough the vertical passage into the air flow tube, the media passage downstream of the orifice converging into a slot-shaped outlet into the air flow tube wherein the length of the outlet is directed along the direction of air flow through the air flow tube so as to reduce the perimeter of the outlet placed perpendicular to air flow and consequently reduce turbulence as the air passes across the outlet.  The media valve is particularly useful in metering and dispensing sodium bicarbonate media from a supply pot to the air conveying line by means of differential pressure across the orifice.
Patent CA-2146350-C (CA)
Inventor: RABE GERALD O
IPC: A21D13/02
Filed: 1994-08-02
Granted: 2004-06-22
Abstract: A high ratio baking composition comprising: (a) a chlorine free heat treated soft flour, (b) an effective volume controlling amount of a non-flour fiber, (c) an effective fragility controlling amount of a protei n; and (d) sugar wherein the density of a baked product resulting from the high ratio baking composition is less than about 5.6 to 6.3 g/in3 a nd the weight ratio of the sugar to the heat treated soft flour is at least about 1:1.
Patent CA-2150098-C (CA)
Inventor: ZENG WEIPING
IPC: A61K6/00
Filed: 1995-05-24
Granted: 2002-03-05
Abstract: An adhesive composition comprising (A) 98 to 60 parts by weight of a polymerizable monomer mixture containing 2 to 25 % by weight of a monomer having acidic group, (B) 2 to 40 parts by weight of a polymer, preferably a polymer which can form a solution or dispersion having the property that the solution or dispersion of 10 parts by weight of the polymer in 90 parts by weight of methyl methacrylate shows a viscosity of 100 cps or less at 25 C, and (C) 0.01 to 35 parts by weight of a polymerization initiator, provided that the total amount of the components (A), (B) and (C) is 100 parts by weight.          According to the present invention, there can be provided an adhesive composition which is easy to handle for the restoration treatment of a tooth, so that adhesion dental treatment can be reliably carried out.
Patent CA-2153076-C (CA)
Inventor: WADA ICHIRO
IPC: A61F13/472
Filed: 1995-06-30
Granted: 2000-04-18
Abstract: A thermoplastic film to be used as a topsheet of body-fluids-absorbent padding is thermoformed under the effect of a differential pressure of fluid, to provide this film with liquid guiding passages with jags on lower ends of the passages.    The  jags may be  further thermally deformed to be intertwined with individual fibers of a liquid-absorbent core of the padding, thereby bonding the topsheet integrally to the core.