baber/WOPTO huggingface dataset:
Patent CA-2125075-A1 (CA)
Inventor: WAGNER PAUL
IPC: C07D317/38
Filed: 1994-06-03
Abstract: A process is described far the catalytic preparation of propylene glycol carbonate (PGC) by reacting propylene oxide (POX) and CO2 in PGC as reaction medium at elevated temperature and elevated pressure and separating off from the catalyst the PGC formed. The process is carried out continuously under adiabatic temperature conditions. Per unit of time, PGC as reaction medium flows into the reactor at to 350 times the amount of the PGC formed per unit of time. At all points of the reactor a CO2 excess is maintained over the other reaction partner POX. Of the effluent reaction mixture, 80 to 98 % by weight are returned to the entrance of the reactor, while the remainder is worked up to give PGC. The sensible heat of the reaction product resulting from the adiabatic temperature conditions can be used for the work-up.
Patent CA-2130083-A1 (CA)
Title: Polymeric screws and coatings for surgical uses
Inventor: SMALL ALAN A
IPC: A61L31/14
Filed: 1993-02-12
Abstract: Polymeric preferably bioabsorbable, interference screws (30, 70, 90) having increased helical thread thickness (TT) and decreased thread depth (TD) relative to corresponding metal insertion screws (10, 50) to provide increased wall thicknesses, which enhances overall rigidity and strength of the absorbable interference screw (30, 70, 90). A proximal region (PR) of the screw (30, 70, 90) increases gradually in diameter (MA, MI) proximally to increase the bite and holding power of the screw (30, 70, 90) as well as to increase wall thickness. The proximal region (PR) increases proximally in at least one of a proximal region minor diameter (PRMI) and a proximal region major diameter (PRMA). Also featured are screws (90) having an absorbable coating (92).
Patent CA-2130950-A1 (CA)
Title: Process for removing returnable bottles from circulation
Inventor: GERNET PIERRE
IPC: G01N21/90
Filed: 1994-08-26
Abstract: ABSTRACT         To determine whether stress cracks are present in the bottom area of a plastic bottle which make it unfit for further use, the bottle bottom is scanned in the potential crack region by the measuring beam of a laser distance-measuring instrument.  From  its output signal, the prevalence and depth of the cracks can be identified sufficiently to enable a decision to be made on the removal of the bottle from circulation.
Patent CA-2133134-A1 (CA)
Title: Chemical Etchant for Palladium
Inventor: ABYS JOSEPH A
IPC: C23F1/00
Filed: 1994-09-28
Abstract: A cyanide based aqueous solution for stripping palladium from copper-containing substrate. The solution includes a cyanide radical source compound, Na2CO3, a nitrobenzoic acid, NaOH, thallium compound, an organo mercapto compound, and water. The presence of the organo mercapto compound in thallium containing cyanide bath permits efficient stripping of palladium from copper containing substrates with minimum corrosion damage to the substrate.
Patent CA-2136962-A1 (CA)
Title: Biologically degradable collecting or transport receptacles
Inventor: MASER FRANZ
IPC: C08L89/06
Filed: 1994-04-02
Abstract: ABSTRACT OF THE DISCLOSURE      The invention concerns biodegradable storage or transport containers characterized in that they consist principally of collagen-fibre material, optionally with the addition of other hydrophilic, environmentally acceptable polymers, the proportion of collagen fibres, relative to the dry weight of the material, being at least 50%.
Patent CA-2138165-A1 (CA)
Title: Fluid treatment system employing electrically reconfigurable electrode arrangement
Inventor: ERICKSON ROBERT K
IPC: C02F1/461
Filed: 1993-06-21
Abstract: An electrolytic filter system (16) is disclosed for use in treating fluid provided by a fluid source (12) to a supplied environ-ment (14). The system includes an electrolytic cell (18) controlled by control circuit (20). Various alternative constructions of the cell are described in which the effective separation of active electrodes, as well as the effective area of the active electrodes can be altered by a switching circuit (94) and controller (96) included in the control circuit (20). The controller responds to inputs from a current sensor (92) reflecting variations in the resistivity of the water. As a result, the controller is able to alter the effective separa-tion and area of the active electrode, in response to resistivity variations to provide optimal operation.
Patent CA-2139052-A1 (CA)
Title: Construction toy kit
Inventor: GUEGAN JACQUES
IPC: A63H33/04
Filed: 1994-12-23
Abstract: A construction toy kit comprises a plurality of construction elements and fasteners adapted for forming structures of various forms.  The construction elements comprise straight flat strip, angled flat strips of various configurations, plates of various configurations, angled brackets of various configurations, blocks of various forms, and other accessories such as axle rods of various lengths, wheels, pulleys, locking clips, pin connectors, fasteners, spacers, washers, etc.  Each of construction elements has at least two holes of a same diameter, each hole having an associated concentric embossment formed therearound.  The kit also includes a hand toy tool for tightening and loosening fasteners, which could also be used an accessory of the construction element.  The kit further includes a container for holding the components thereof.
Patent CA-2144369-A1 (CA)
Inventor: SAMMIS GEORGE L
IPC: B44C1/17
Filed: 1995-03-10
Abstract: A transfer sheet (10) for heat transferring a temperature-responsive decal having personally applied crayon coloring (22) onto a section of fabric (20).  The transfer sheet (10) includes a paper sheet (12) treated with a release agent and a printed image (14) disposed directly thereon.   A single uniform and transparent transfer  layer  (16)  of  thermoplastic  material  is disposed over the printed image (14) and other selected areas on the paper sheet (12).  A plurality of abrasive particles  (18)  are  partially  embedded  within  the transfer layer  (16)  for abrading crayon  (22)  rubbed thereover and for enhancing the mechanical bond between the transfer layer (16) and the fabric (20) when the transfer sheet (10) is applied to the fabric (20).
Patent CA-2144486-A1 (CA)
Inventor: MOYSAN STEPHEN R III
IPC: C25D5/14
Filed: 1995-03-13
Abstract: An article is coated with a multilayer coating comprising a nickel layer deposited on the surface of the article, a nickel-tungsten-boron  alloy  layer deposited  on the nickel  layer,  a refractory metal, preferably zirconium, strike layer deposited on the nickel-tungsten-boron alloy layer,  and a refractory metal compound, preferably zirconium nitride, deposited on the refractory metal strike layer.  The coating provides the color of polished brass to the article and also provides abrasion and corrosion protection.
Patent CA-2145000-A1 (CA)
Title: Compounds which are selective antagonists of the human nk3 receptor and their use as medicinal products and diagnostic tools
Inventor: BICHON DANIEL
IPC: C07D401/02
Filed: 1995-03-20
Abstract: A compound of formula: (see formula I) in which: - Ar represents a pyrid-2-yl or a phenyl which is unsubstituted or substituted by a halogen, a methyl or a ( C1-C4) alkoxy;   - R1 represents a methyl group; - R11 represents hydrogen; - or R1 and R11 together represent a -(CH2)3- group; - R2 represents a hydroxyl; a (C1-C7)alkoxy; a (C1-C7)acyloxy; a cyano; an -NR6R7 group; an -NR3COR4 group; an -NR3COOR8 group; an -NR3SO2R9 group; an -NR3CONR10R12 group; a (C1-C7)acyl group: a (C1-C7)alkoxycarbonyl; a -CONR10R12 group: a -CH2OH group; a (C1-C7)alkoxymethyl; a (C1-C7)acyloxymethyl; a (C1-C7)alkylaminocarbonyloxymethyl; a -CH2NR13R14 group; a -CH2NR3COR4 group; a -CH2NR3COOR8 group; a -CH2NR3SO2R9 group; a -CH2NR3CONR10R12 group; or R2 constitutes a double bond between the carbon atom to which it is attached and the adjacent carbon atom of the piperidine ring; - or Ar and R2, together with the carbon atom to which they are attached, constitute a group of formula: (see formula II) Application: NK3 antagonists
Patent CA-2145337-A1 (CA)
Title: Improved spinner device for vertical retrieve fishing lure
Inventor: ROSEK WILLIAM A
IPC: A01K85/12
Filed: 1995-03-23
Abstract: A spinner device is provided for incorporation into a fishing lure whereby the lure is caused to assume a vertical attitude upon falling through water.  The spinner has a centered bearing hub and a number of identical blades radially emergent from the hub and terminating in distal extremities.          Each blade has a forwardly directed lift angle of between 10 and 25 degrees and a pitch angle of between 10 and 20 degrees.          The bearing hub contains a circular cylindrical bore having a length at least 4 times its diameter.  The bore is adapted to slidably engage a stiff wire component of a fishing lure.  The diameter of the bore is greater than the diameter of the wire by .004 to .020 inch.
Patent CA-2146507-A1 (CA)
Inventor: LASSILA KEVIN R
IPC: C08G18/32
Filed: 1995-04-06
Abstract: Polyurethane-urea elastomers are made using as a chain extender 2-methyl-1,3-propanediol-bis-p-aminobenzoate which is the reduction product from hydrogenating 2-methyl-1,3-propanediol-bis-p-nitrobenzoate.  The latter composition is preferably made by esterifying p-nitrobenzoic acid and 2-methyl-1,3-propanediol using a stoichiometric excess of the diol initially, adequate to render the reaction mixture processible, and after converting to a nonvolatile form sufficient diol to form diester with substantially all of the acid, removing free diol by distillation while continuing the esterification of unreacted acid and transesterification of monoester formed to diester.  This process, which can be applied broadly to esterification of other nitroaromatic acids with other aliphatic diols, produces high yields of diester without needing extraneous solvent for processibility and with only water as a by-product.  The 2-methyl-1,3-propanediol-bis-p-aminobenzoate exhibits reactivity and processing characteristics which make it a suitable drop-in replacement for MoCA in polyurethane-urea elastomer manufacture.
Patent CA-2149111-A1 (CA)
Title: An arrangement for transporting track panels
Inventor: THEURER JOSEF
IPC: B61D3/10
Filed: 1995-05-09
Abstract: A mobile arrangement (1) for taking up, laying and transporting track panels (6) formed by rails and sleepers is composed of a lifting device (3) having a carrier frame (13) with vertically adjustable carrier means (19) and a transport wagon (2) designed to travel independently of the said lifting device for supporting the track panel (6) together with the lifting device (3). The carrier frame (13) may be supported on the formation by means of pairs of lifting jacks (15) spaced apart from one another in the longitudinal direction of the track and may be adjusted vertically relative to the said formation by means of a drive (18). The transport wagon (2) is provided at either end with an on-track undercarriage (8) and a vertically adjustable off-track undercarriage (9). The transport wagon (2) has an articulation point (10) situated between the undercarriages (8) at either end and the carrier frame (13) has an articulation point (14). The transport wagon (2) is supported in the vicinity of the articulation point (10) by means of another on-track undercarriage (11) and another vertically adjustable off-track undercarriage (12), and the carrier frame (13) of the lifting device (3) has another lifting jack pair (16) in the vicinity of the articulation point (14).
Patent CA-2151348-A1 (CA)
Title: Printed label structure for packaging arrangements
Inventor: MARTIN WALLACE ANTHONY
IPC: B65D75/30
Filed: 1995-06-08
Abstract: A cover-forming laminated structure interconnecting a plurality of containers, such as the base members of blister packages each of which is adapted to contain a hydrophilic contact lens in a sterile aqueous solution. More specifically, disclosed is an array of such containers which are interconnected by a single laminated multi-layered material constituting a covering label for the containers, wherein the material may be severed intermediate each of the containers along weakening lines formed by micro--perforations provided therein so as to provide a separate packaging arrangement. The material is imprinted over the surface extent thereof covering the plurality of containers with a specific pattern of indicia and legends configured with the intent of thwarting diverters upon separation of any of the packaging arrangements from the array, through visual evidence afforded by an inspection of the printing pattern.
Patent CA-2151975-A1 (CA)
Inventor: BELISLE GHISLAIN
IPC: A23L33/105
Filed: 1995-06-16
Abstract: Composition: Capsule de gélatine de type (B) 50% de pectine de citrus en poudre 25% de lactose 10% de luzerne en poudre 10% de calsium en poudre 5% de vitamine C en poudre Tout ses ingrédiants douivent être soyeusement mélanger avant d'être encapsulées.
Patent CA-2153491-A1 (CA)
Inventor: PROVOST JEAN-JACQUES
IPC: B65D75/52
Filed: 1994-11-07
Abstract: Dans cet emballage, chacun des produits allongés empilés (2) adhère de façon amovible par une extrémité (2B) contre le fond (4) de l'enveloppe (3). Application à l'emballage de produits préemballés tels que des tablettes de gomme à mâcher ou de produits laitiers, des biscuits ou des barres de chocolat, ou encore de cartes à puce.
Patent CA-2153610-A1 (CA)
Inventor: ROBINSON EDGAR C
IPC: F23D11/36
Filed: 1995-07-11
Abstract: Un brûleur ayant un tube de brûleur et un porte-buse montés dans une extrémité du tube de brûleur. Un allumeur est positionné à l'intérieur du porte-buse et agit pour enflammer l'un des combustibles à liquides multiples qui peuvent être utilisés avec le brûleur. Une buse éjecte du combustible liquide atomisé sous l'effet de venturi de la buse, celle-ci étant alimentée en air comprimé. Des trous d'air primaires sont disposés sur toute la circonférence du porte-buse pour assurer l'admission radiale de l'air qui passe directement dans le tube de brûleur. Des trous d'air secondaires sont disposés sur toute la circonférence intérieure du tube de brûleur sur la plaque d'injection d'air secondaire pour assurer l'admission axiale de l'air dans le tube de brûleur.
Patent CA-2155167-A1 (CA)
Title: Shield for rolling element bearings
Inventor: ALLING RICHARD LASSEN
IPC: F16C33/78
Filed: 1995-08-01
Abstract: A shield has an outer periphery portion engaging a grooved outer bearing ring, an inner periphery portion adjacent an inner bearing ring, and a mid portion joining the outer periphery portion and the inner periphery portion. The outer periphery portion has an annular reverse bend and terminates in an annular flat surface having radially outer and radially inner edge portions.  The radially outer edge portion and the radially inner edge portion and the reverse bend each contact the grooved outer bearing ring to retain the shield axially and radially.
Patent CA-2155209-A1 (CA)
Inventor: CLOUSER SIDNEY J
IPC: B01D11/02
Filed: 1994-03-17
Abstract: The present invention relates to a process for making copper foil from copper-bearing material comprising: (A) contacting said copper-bearing material (10) with an effective amount of d least one aqueous leaching solution (40); (B) contacting a copper-rich aqueous leaching solution (11) with an effective amount of at least one water-insoluble extractant (20); (C) separating a copper-rich extractant (48) from a copper-depleted aqueous leaching solution (14); (D) contacting said copper-rich extractant (48) with an effective amount of at least one stripping solution (22); (E) separating a copper-rich stripping solution (16) from a copper-depleted extractant (64); (F) flowing said copper-rich stripping solution (25) between an anode (28) and a rotating cathode (26), and applying an effective amount of voltage across said anode and said cathode to deposit copper (26a) on said cathode; and (G) continuously removing copper foil (12) from said cathode.
Patent CA-2157940-A1 (CA)
Title: Wheel and tire safety guard
Inventor: BENOIT ROBERT J
IPC: B60R19/00
Filed: 1995-11-17
Abstract: This invention can reduce the danger of wheels and tires accidentally coming off moving vehicles. A restraining member positioned in front of the wheels of a vehicle can prevent the wheels and tires from coming off the vehicle, in the event of failure in the wheel fastening mechanism or in the tire. The restraining member can be conveniently installed on, and removed from the vehicle body via attachment means in the form of an enclosure with a locking pin. The dimensions of the restraining member can be adjusted to fit different sizes of wheels and vehicles. The restraining member may be provided with a handle to facilitate holding the member during installation and removal. A fault detector may be provided in the vicinity of the member to warn the driver when a loosened wheel rubs against the member, by sensing physical vibrations. Alternatively the fault detector may warn the driver, by sensing smoke around the wheel area.
Patent CA-2157960-A1 (CA)
Title: Delay testing of high-performance digital components by a slow-speed tester
Inventor: AGRAWAL VISHWANI DEO
IPC: G01R31/317
Filed: 1995-09-11
Abstract: High speed testing of a digital circuit may be performed although the rated frequency of the circuit exceeds the frequency capability of the test equipment.  A digital circuit may be designed such that a controllable delay may be introduced in the timing paths of the circuit during testing using test stimuli which are applied at a clock rate that is less than the rated frequency of the circuit.  By adding delay to the combinational signal path, testing of the circuit for operation at the maximum operating frequency is achieved during testing at a clock rate which is within the capability of the test equipment. The controllable delay may be incorporated as a delay element into a single-clock circuit and controlled by manipulation of the duty-cycle of a clock waveform which is applied to the circuit.  The delay circuit is so designed that its function is also testable.  In a multi-clock circuit, the delay is added to the circuit by skewing one clock signal with respect to the other clock signals.
Patent CA-2161785-A1 (CA)
Title: Injectable polysaccharide-cell compositions
Inventor: GRIFFITH-CIMA LINDA
IPC: A61K35/12
Filed: 1994-04-29
Abstract: Slowly polymerizing polysaccharide hydrogels have been demonstrated to be useful as a means of delivering large numbers of isolated cells via injection. The gels promote engraftment and provide three dimensional templates for new cell growth. The resulting tissue is similar in composition and histology to naturally occurring tissue. This method can be used for a variety of reconstructive procedures, including custom molding of cell implants to reconstruct three dimensional tissue defects, as well as implantation of tissues generally. Examples demonstrate construction of muscle and cartilage tissues which are useful to repair defects such as reflux and incontinence.
Patent CA-2162083-A1 (CA)
Title: Process for preparing formylcarboxylic esters
Inventor: BAHRMANN HELMUT
IPC: C07C67/347
Filed: 1995-11-03
Abstract: A process is described for preparing di- and polyformyl-carboxylic  esters  by  hydroformylation  of  esters  of multiply unsaturated fatty acids. The reaction is carried out in the presence of an aqueous solution containing rhodium carbonyl/phosphine  complexes  as  catalyst  and additionally a surfactant.
Patent CA-2164471-A1 (CA)
Inventor: GUERET JEAN-LOUIS H
IPC: A45D40/26
Filed: 1995-12-05
Abstract: La présente invention se rapporte à un ensemble (1) de distribution et d'application d'un produit (P) de consistance liquide à pâteuse, comprenant un réservoir tubulaire (2) pour contenir le produit à distribuer communicant avec au moins un orifice de distribution (61), ce réservoir, du côté opposé à l'orifice (61), comportant au moins une fente longitudinale (21); un piston (4) apte à coulisser en translation à l'intérieur du réservoir (2) comportant des moyens d'entraînement en translation (43) traversant la fente (21); une embase (9) raccordée au réservoir ; des moyens d'entraînement (51) en translation du piston (4). Le réservoir (2) et l'embase (9) sont réalisés en une pièce, la fente (21 ) étant réalisée sur une partie (2b) seulement du réservoir (2). Cet ensemble est équipé d'un embout d'application (6) pour la distribution et l'application du produit (P) comportant une surface d'application (63) pourvue dudit orifice de distribution (61). La surface d'application (63) de l'embout (6) comporte au moins une cavité ou au moins une gorge (75), l'orifice (61) étant situé dans cette cavité ou dans cette gorge (75).
Patent CA-2164835-A1 (CA)
Title: Method for production of high titer virus and high efficiency retroviral mediated transduction of mammalian cells
Inventor: ROBERTS MARGO R
IPC: C12N15/87
Filed: 1994-06-10
Abstract: The invention provides a novel retroviral packaging system, in which retroviral packaging constructs, and packaging vector transcripts are produced from high expression plasmids by transfection in human cells.  High titers of recombinant retroviruses are produced in infected cells. The methods of the invention include the use of the novel retroviral constructs to transduce primary human cells, including T cells and human hematopoietic stem cells, with foreign genes by cocultivation at high efficiencies. The invention is useful for the rapid production of high titer viral supernatants, and to transduce with high efficiency cells that are refractory to transduction by conventional means.
Patent CA-2167082-A1 (CA)
Inventor: HENDRY STUART P
IPC: G01N27/404
Filed: 1994-07-04
Abstract: L'invention concerne un détecteur électrochimique permettant de déterminer la pression partielle d'oxygène dans un courant sanguin, qui comprend une cathode (20) et une anode (21) immergées dans un électrolyte (17) se trouvant dans une chambre (23) définie par une membrane perméable à l'oxygène. La partie isolée de chacun des conducteurs qui forment la cathode et l'anode comporte une couche isolante (24) supplémentaire, appliquée sur la couche initiale.
Patent CA-2169268-A1 (CA)
Inventor: OATHOUT JAMES MARSHALL
IPC: D04H1/492
Filed: 1994-08-04
Abstract: This application relates to a spunlaced fabric and a process for the production of a spunlaced fabric wherein the fabric is intended for use as a cleanroom wipe. Such cleanroom wipes preferably produce a low number of particles while having high absorbency. The fabric of the present invention essentially consists of a mixture of 25 to 65 wt. % cotton or rayon cellulose fiber and 35 to 75 wt. % polyester fiber. The fabric is further characterized in that it has a particle count of no greater than 18 million particles/m2 as measured by the Biaxial Shake (IES-RP-CC-004.2), an Intrinsic Absorbance of at least 5, and a Particle Sorbency Quotient of less than 55. The process of producing the fabric under the present invention is characterized by passing a web of 25 to 65 wt. % cotton or rayon cellulose fibers and 35 to 75 wt. % polyester fibers through a first series of water jets operating at a total impact energy of at least 10 X 10-3 horsepower-hour-pounds force/pound mass and a second series of water jets at the opposite side operating at a total impact energy of at least 20 X 10-3 horsepower-hour-pounds force/pound mass. In the process, the total impact energy of both sets of jets is at least 40 X 10-3 horsepower-hour-pounds force/pound mass.