baber/WOPTO huggingface dataset:
Patent AU-737740-C (AU)
Title: A centrifugal pump formed by pressing and welding and its manufacturing process
Inventor: LIANG FANG
IPC: F04D1/00
Filed: 1998-10-30
Granted: 2002-07-25
Abstract: The invention relates to a centrifugal pump and it's manufacturing process, more particularly to a pump formed by pressing and welding metal sheet. In this invention, comprising a pump casing, an impeller, labyrinth ring supports, labyrinth rings, a real cover and a chassis, characterized in that the manufacturing process of said pump casing includes following steps: using a female mold made by wear-resisting metal, the female space in said female mold is a near 360 DEG  integrated spiral with radial expanded gradually shape and approximately semicircle cross section, using a male mold made by pressing deformable soft or elastic material, putting a tubular member with flange made by metal sheet between said molds, closing said molds, expanding said male mold made by soft or elastic material. Said tubular member will be expanded into a near 360 DEG integrated spiral casing with radial expanded gradually shape and approximately semicircle cross section.  <IMAGE>
Patent CA-2002467-C (CA)
Title: Depot electrophoretique anti-usure du type metalloceramique consolide par nickelage electrolytique
Inventor: DESCAMP MARTINE
IPC: C25D13/02
Filed: 1989-11-08
Granted: 1999-11-02
Abstract: Selon l'invention, pour réaliser un revêtement de protection anti-usure en frottement alterné à moyenne température sur un substrat en acier ou en superalliage notamment à base de nickel on réalise les étapes suivantes: a) Dépôt électrophorétique d'une structure métallocéramique composée d'un mélange de 85 % à 50 % de poudre métallique et de 15 % à 50% de poudre céramique, mélange dans lequel la poudre métallique est un superalliage base cobalt du type KC 25 NW ou du type M - Cr A~ Y où M désigne un métal choisi dans le groupe formé par Ni, Co, Fe ou un mélange de ceux-ci avec adjonction éventuelle de Ta et dans lequel la poudre céramique est choisie dans le groupe formé par les oxydes, notamment A~2 O3 ou Cr2 O3, les carbures, notamment SiC ou Cr3 C2 les nitrures, notamment BN ou TiN ou les borures notamment Ti B2; b) prénickelage électrolytique dans un bain d'électrolyse à pH copris entre 6 et 8 ; c) nickelage électrolytique dans un bain acide de type sulfamate. Application aux pièces de moteur subissant un frottement alterné à température proche ou supérieure à 700.degree.C.
Patent CA-2008669-C (CA)
Title: Multiple mode memory module
Inventor: MANN EDWARD D
IPC: G06F13/16
Filed: 1990-01-26
Granted: 2001-03-06
Abstract: A memory unit 18 includes a bus 16 which couples the memory unit to a memory control unit 14. The memory unit includes a latch for receiving and storing an address from the bus, a first memory plane for storing information units associated with an odd address, a second memory plane far storing information units associated with an even address, an input latch for receiving from the bus an information unit associated with a received address and output latches for storing; prior to transmission to the bus, a stored information unit associated with a received address. The memory unit further includes logic, responsive to a state of a first bus signal line, for enabling the output latches to (a) simultaneously transmit to the bus an information unit from both the first and the second memory planes, or (b) sequentially transmit to the bus an information unit from one of the memory planes followed by an information unit from the other one of the memory planes.
Patent CA-2009097-C (CA)
Title: Rubber support
Inventor: FREUDENBERG TILLMAN
IPC: F16F13/00
Filed: 1990-02-01
Granted: 1994-05-31
Abstract: ABSTRACT     A rubber support with hydraulic damping means for the damping of vibrations of a select frequency range includes a working chamber and a compensation chamber which chambers are connected by a connecting passage and filled with a hydraulic liquid wherein the connecting passage is constructed as a channel and dimensioned in such a way that a resonance movement of the enclosed volume of liquid results from the transmission of vibrations within the range of frequencies to be dampened and that the connecting passages is restricted by a throttle opening of limited axial extent.  A highly effective damping action is achieved over a relatively large range of frequencies with such a rubber support.
Patent CA-2011626-C (CA)
Title: Arcuate precast tunnel lining segments
Inventor: MITCHELL SAMUEL BAILEY HART
IPC: E21D11/05
Filed: 1990-03-07
Granted: 2000-10-31
Abstract: There is described an arcuate pre-cast concrete tunnel lining segment having at least one compressible insert extending through the thickness of the segment between opposing circumferential edges thereof. Connecting devices, which may comprise a plurality of bolts cast in the segment portions on either side of the insert and extending through the insert, hold the segment portions on either side of the insert in alignment and against separation. The connecting devices permit the segment portions to move together collapsing the insert when subjected to an excess external load.
Patent CA-2012915-C (CA)
Title: Substituted phthalimido cyclohexanecarboxamides and the use thereof for enhancing growth of hybrid tea rose plants
Inventor: KUST CYRIL A
IPC: A01N43/38
Filed: 1990-03-23
Granted: 1998-09-22
Abstract: This disclosure describes 1-(3-chloro-4-methyl-phthalimido)-cyclohexanecarboxamide of the formula (see fig. I) and the use of said compound and 1-(3-chlorophthalimido)-cyclohexanecarboxamide of the formula (see fig. II) for enhancing axillary bud growth of hybrid tea rose plants.
Patent CA-2013219-C (CA)
Title: Method and apparatus for ventilation in a multi-cylinder dryer of a paper machine or the like
Inventor: EIVOLA ILKKA
IPC: D21F5/04
Filed: 1990-03-28
Granted: 1993-03-23
Abstract: ABSTRACT OF THE DISCLOSURE    Method and apparatus for ventilating pockets in a twin-wire multi-cylinder dryer of a paper machine which comprises upper and lower lines of drying cylinders, an upper wire guided by surfaces of the upper cylinders and upper guide rolls and a lower wire guided by surfaces of the lower cylinders and lower guide rolls, and wherein the web runs between the upper and lower cylinders over an open draw, includes providing the guide rolls with perforated mantles for directing air flows from their interiors into the pockets, and providing blow boxes with nozzles for directing air flows into the pockets.
Patent CA-2013962-C (CA)
Inventor: CAMBERLIN YVES
IPC: C08G73/12
Filed: 1990-04-05
Granted: 1994-05-24
Abstract: La présente invention concerne des prépolymères thermodurcissables comportant des groupements imide, ayant une très faible viscosité a l'état fondu. Plus précisément, ces polymères sont obtenus par réaction entre : - (a) un ou plusieurs N,N'-bis-maléimide(s) conventionnel(s) ; (b) un N,N'-bis-maléimide de formule générale : dans laquelle : X représente : un lien valentiel, -O-, -S-,, ; R à R6 ? représentent chacun un radical hydrocarboné ; x est un nombreallant de 2 à ? ; et la somme y + z est comprise entre 0 et 100 ; (c) une ou plusieurs diamine(s) biprimaire(s) aromatique(s) ; (d) éventuellement un ou plusieurs monomère(s) autre(s) qu'un bis-imide et comportant une ou plusieurs double(s) liaison(s) carbone-carbone polymèrisable(s) ; (e) éventuellement un catalyseur ; et un additif (f) consistant soit dans un réactif acrylate (f1) soit dans une résine epoxy non halogénée (f2). Ces polymères sont utilisés pour la réalisation notamment d'articles intermédiaires préimprégnés sans solvant.
Patent CA-2018667-C (CA)
Inventor: FINA LOUIS R
IPC: B01J41/00
Filed: 1990-06-11
Granted: 1998-07-07
Abstract: A method is provided for strong base anion exchange resins containing high concentrations of pentaiodide (I5-). The resins are prepared from highly concentrated solutions of I5- and I3 - ions. The exchanged ions, such as chloride (Cl-), are washed out of the resin after completion of the exchange reaction with the polyiodide ion mixture. The resulting product is a stable resin of predetermined I5- content, which is highly effective as a disinfectant for water, acting against water-borne bacteria, virus, an Giardia.
Patent CA-2027067-C (CA)
Title: Method for forming a continuous oxide superconductor layer having different thickness portions for superconductor device
Inventor: TANAKA SABURO
IPC: H01L39/24
Filed: 1990-10-05
Granted: 1996-07-23
Abstract: A method for forming an oxide superconductor thin film having different thickness portions, in a process for manufacturing a superconductor device, includes the step of forming an oxide superconductor thin film having a uniform thickness on a substrates. A portion of the oxide superconductor thin film is etch-removed so that the oxide superconductor thin film has a thin thickness portion. Preferably, before the etching, the oxide superconductor thin film is coated with a metal layer, and the oxide superconductor thin film and the metal layer are etched together by means of a physical dry etching process.
Patent CA-2027201-C (CA)
Title: Method for removing paraffin from waxy petroleum products
Inventor: MUELLER MICHAEL
IPC: C10G73/04
Filed: 1990-10-09
Granted: 1996-12-10
Abstract: A method for the solvent dewaxing of wax-containing petroleum products with at least one solvent suitable for dewaxing and a polymeric dewaxing aid comprising polyacrylates, by mixing the products to be dewaxed with the solvent and the polymeric dewaxing aid, chilling the mixture so obtained, and separating the precipitated wax, the dewaxing aid used being a mixture of (I)  a polymer of esters of acrylic acid with C10-C40 alkanols and (II)  a polymer of esters of methacrylic acid with alkanols comprising more than 10 weight percent of branched alkanols, the weight ratio between components (I) and (II) ranging from 1:20 to 20:1.
Patent CA-2029281-C (CA)
Title: Launcher control system for surface launched active radar missiles
Inventor: STUBBS DAVID W
IPC: F41F3/04
Filed: 1990-11-05
Granted: 1995-07-04
Abstract: In a weapon system 10 incorporating a target position sensor (14), an information system (16), a power source  (24),  a launcher  (20),  and an airborne vehicle (18),  a  launcher  control  system  (12)  incorporates  a communications   interface   (26)   for   coupling   the information system (16)  and the target position sensor (14)  to a launcher (20)  and an airborne vehicle  (18). The  communications  interface   (26)   receives  target position information and launch and control orders and provides  launcher  and  airborne  vehicle  status.   A airborne vehicle interface (28) couples the launcher (20) and the airborne vehicle (18) to the information system (16)  and  a  power  source (22).   A  transmitter  (30) communicates updated target position information to the airborne vehicle after launch.   A power control means (32)  converts and regulates power from different power sources (22) to be used by the launcher control system (12).   The launcher  (20)  with launcher control system (12)  is  preferably  modular  in  construction  and  is separate  from the information  system  (16)  and  target position sensor (14).
Patent CA-2034130-C (CA)
Title: Prepress sealer for use in hardboard manufacture
Inventor: HSU OSCAR HSIEN-HSIANG
IPC: C08L97/02
Filed: 1991-01-14
Granted: 2004-11-16
Abstract: A prepress sealer for use in the process of making wood composition board is provided. The prepress sealer incorporates a crosslinking resin and an aqueous dispersion of acrylic polymer particles. The acrylic polymer particles have a THF gel content of greater than about 70%. Use of the prepress sealer provides improved press release during board manufacture and improved surface toughness and water resistance to the produced board.
Patent CA-2034197-C (CA)
Title: Conjugates of biologically stable polymers and polynucleotides for treating systemic lupus erythematosus
Inventor: CONRAD MICHAEL J
IPC: A61K47/48
Filed: 1991-01-15
Granted: 2001-07-17
Abstract: Chemically defined conjugates of biologically stable polymers, such as copolymers of D-glutamic acid and D-lysine, and polynucleotide duplexes of at least 20 base pairs that have significant binding activity for human lupus anti-dsDNA autoantibodies. The duplexes are prefer-ably homogeneous in length and structure and are bound to the polymer via reaction between an amino-reactive functional group located at or proximate a terminus of each duplex. These conjugates are tolerogens for human systemic lupus erythematosus.
Patent CA-2043051-C (CA)
Title: Expandable catheter having hydrophobic surface
Inventor: LAMBERT JAMES M
IPC: A61L29/08
Filed: 1991-05-22
Granted: 1994-11-22
Abstract: A  catheter   of   a  thermoplastic  elastomeric hydrophilic polyurethane  is  coated on at  least  the outside surface with a hydrophobic polymer and expands to a larger lumen size in about 3 to 15 minutes when contacted  with  an  aqueous  liquid.   The  hydrophilic polyurethane  may  be  synthesized by  one-shot  bulk polymerization,  and may be melt extruded into a base tubing and dip coated with the hydrophobic polymer, or the hydrophilic polyurethane  and hydrophobic polymer may be coextruded.   The  catheter may  have  multiple lumens  and  may  include  an  antithrombogenic  agent, antiinfective agent and radiopaque agent.
Patent CA-2043532-C (CA)
Title: Crimpless coaxial cable connector with pull back engagement
Inventor: STIRLING ALBERT
IPC: H01R4/50
Filed: 1991-05-30
Granted: 1994-10-18
Abstract: A crimpless coaxial cable connector is provided which can be secured to a cable simply by pushing the cable into the connector and subsequently pulling it back. The body of the connector has a bushing mounted within it near the cable receiving end having a diameter to closely receive the cable.   The body of the connector also has within it an annular mandrel having a bore to receive the stripped core of the cable, and having a sleeve adapted to engage the cable beneath the jacket by pushing the cable and the mandrel together.  This stretches the jacket of the cable to a diameter greater than the internal diameter of the bushing.  The mandrel is movable from a position in which the sleeve is not surrounded by the bushing in which the sleeve may be engaged to the cable, to a position in which the sleeve is at least partially within the bushing in  which  the  jacket  is  frictionally  engaged  by  the bushing, by pulling the cable away from the connector after  it  has  been  pushed  onto  the  mandrel  sleeve. Preferably, the mandrel is displaced to further tighten the frictional engagement of the jacket by the bushing by screwing the connector onto a threaded coupling unit.
Patent CA-2043960-C (CA)
Title: Thin film container with removable lid and related process
Inventor: ROBBINS EDWARD S III
IPC: B65D1/40
Filed: 1991-06-05
Granted: 1996-07-16
Abstract: A collapsible thin film plastic container assembly is provided which includes a unitary extrusion blow molded container body having a main peripheral side wall portion, a closed lower end and an open upper end. The side wall has thickened upper and lower minor portions, the upper minor portion provided with means for receiving a removable lid. The thickened upper and lower portions permit the container to remain in a substantially upright, self-supporting position, but permit the main peripheral side wall portion to collapse upon exertion of an axially directed compressive force. The process includes extruding a parison and blow molding the parison within a mold to form the container.
Patent CA-2047339-C (CA)
Inventor: KEIZER HAROLD F
IPC: B21D37/14
Filed: 1991-07-18
Granted: 1994-10-11
Abstract: A die structure for use in conjunction with a metal working press is provided without the usual large bottom plate member secured to the undersides of the spaced apart parallel members  projecting downwardly  from the underside of the shoe portion of the die.   To permit the plateless die structure to be rollingly  transported  from place  to place along a horizontal support surface, a plurality of specially designed lifter devices are secured to the die parallels and rotatably carry a plurality of roller members.  The lifter devices are pneumatically operable and,  when actuated,  drive the roller members downwardly beyond the common plane in which the bottom sides of the parallels lie to thereby elevate the die structure above a horizontal support surface and rollingly support the die structure thereon.   Upon deactivation thereof, the lifter devices permit the undersides of the die parallels to settle back down onto the support surface, thereby  stationarily  positioning  the  plateless  die  structure thereon.
Patent CA-2050439-C (CA)
Title: Process for plating super abrasive materials onto a honing tool
Inventor: SCHIMWEG JOHN J
IPC: C25D15/02
Filed: 1991-08-30
Granted: 1994-07-05
Abstract: Abstract Of The Disclosure An improved method for plating super abrasive materials onto the working portion of a honing tool, which method includes plating or otherwise coating a relatively thin layer of a composite material comprising a metal or metal alloy material having a friction reducing or lubricating type material occluded or otherwise associated therewith over the top of the bond already established between the abrasive particles and the working portion of the honing tool so as to substantially reduce and minimize the occurrence of having stock material build-up and collect between the abrasive particles, which stock build-up causes galling or scoring of the honed work surface during a honing operation.  In the preferred embodiment, the composite material comprising the anti-galling coating surface is a nickel/phosphorous alloy material having micron-sized Teflon particles occluded therein.  The present method substantially increases the quality of the finished work product as well as the overall service life of the honing tool itself.  An improved honing tool construction is also produced through usage of the present method.
Patent CA-2051425-C (CA)
Title: Draft control apparatus and method
Inventor: HARDY GERALD D
IPC: A01B63/112
Filed: 1990-07-16
Granted: 2001-02-20
Abstract: Implement draft control devices are typically utilized on agricultural vehicles such as tractors and on other earthworking type vehicles. Advantageously, such control systems should respond quickly to changing soil conditions, while remaining stable so that the hitch and implement systems do not oscillate or are not changed in a rapid or erratic fashion. The instant embodiment of a draft control system includes a control system that receives hitch position control signals and engine acceleration signals, and controllably modifies the hitch position control signals in response to the rate of acceleration and deceleration of the engine. By utilizing engine acceleration and deceleration rates as opposed to mere changes in engine speed, the system is able to respond quickly to needed changes in implement depth while remaining stable during operation.
Patent CA-2051660-C (CA)
Title: Method of frying oil treatment using an alumina and amorphous silica composition
Inventor: SEYBOLD JED C
IPC: C11B13/00
Filed: 1991-02-15
Granted: 2001-04-17
Abstract: The treatment of cooking oil with a combination of alumina and amorphous silica is disclosed. This combination, preferably with a silica hydrogel and a hydrated alumina, reduces all contaminants know n to degrade the oil without introducing metals or increasing undesirable soaps.
Patent CA-2051972-C (CA)
Inventor: MONTROSE FRANKLIN C
IPC: B21D53/64
Filed: 1991-09-20
Granted: 1994-04-19
Abstract: A METHOD OF FORMING PERFORATING                     RULE AND BLADES     Abstract of the Disclosure A method of forming perforating rule and blades of the type used in business form machines and other paper processing machines to apply perforations to business forms  or  various  other  paper  products  wherein  an impression roll having hardened impression teeth spaced equally about an outer circumferential surface thereof is pressed into contact with a blade or rule such that the hardened teeth bite into a sharpened edge of the blade or rule forming equally spaced perforating teeth therealong.          The resulting product of the process is a perforating rule or blade having tapered perforating teeth equally spaced with  gaps  therebetween wherein a  pillow  of displaced material is formed at the base of the gaps being structured and configured to resist residue buildup while facilitating ease of stripping of the rule or blade from the perforated forms.
Patent CA-2054272-C (CA)
Title: Insulation strip and method for single and multiple atmosphere insulating assemblies
Inventor: LAFOND LUC
IPC: E06B3/663
Filed: 1991-10-25
Granted: 2001-01-02
Abstract: There are disclosed spacer elements for use in insulated glass assemblies of the single and multiple atmosphere type which incorporate non-thermally conductive materials as the main structural support member in the assembly. The result is a lightweight, warm edge assembly.
Patent CA-2070836-C (CA)
Title: Electronic articles containing a fluorinated poly(arlene ether) dielectric
Inventor: MERCER FRANK W
IPC: B32B27/00
Filed: 1990-12-07
Granted: 2002-04-02
Abstract: An electronic article such as a multichip module or an integrated circuit chip has a multilayer interconnect with multiple layers of conductive material made of a fluorinated poly(arylene ether) having a repeat unit such as (I).
Patent CA-2081882-C (CA)
Title: Polyolefin compositions and process for their preparation
Inventor: MALUCELLI DECIO
IPC: B29K23/00
Filed: 1992-10-30
Granted: 1999-12-21
Abstract: Polyolefin compositions comprising one or more crystalline polymers or copolymers of 1-olefins having Melt Index values higher that 20 g/10 min, and, dispersed in the above mentioned polymers or copolymers, a cellulosic material in the form of particles or fiber, as well as the process for the preparation of the above mentioned composites in pelletized form and their conversion into products by way of infection molding.
Patent CA-2083933-C (CA)
Title: Ground-driven hydraulic pump system
Inventor: BARBER DENNIS RAY
IPC: B62D5/32
Filed: 1992-11-26
Granted: 1995-11-07
Abstract: An engine-driven pump supplies pressurized hydraulic fluid to vehicle brake and steering circuits.  A ground driven variable displacement pump controlled by a control circuit is de-stroked when the engine-driven pump is operational.  The variable displacement pump includes a movable piston which divides a bore into a pilot chamber and a pump chamber.  An outlet line with a check valve communicates fluid one way from the pump chamber to the vehicle circuits.  An inlet line with a check valve communicates fluid one way from a reservoir to the pump chamber.  A ground-driven rotatable cam member reciprocates the piston.  A spring urges the piston towards the cam member and towards a full stroke position.  A pilot line which communicates fluid pressure from an outlet of the engine-driven pump to the pilot chamber.  When the engine-driven pump is operational the pressure in the pilot line moves the piston away from the cam member, thus de-stroking the variable displacement pump.  When the engine-driven pump stops, the pilot pressure drops, causing the variable displacement pump to go into stroke.  A relief valve may be used to reduce the stroke of the variable displacement pump when its output pressure is too high.