baber/WOPTO huggingface dataset:
Patent CA-2036834-A1 (CA)
Title: Stable low fume stainless steel welding electrode
Inventor: O'DONNELL DAVID B
IPC: B23K35/368
Filed: 1991-02-21
Abstract: STABLE LOW FUME ELECTRODE     ABSTRACT           The invention provides a coated electrode suitable for welding stainless steel.  The coated electrode uses a stainless steel core wire.  The flux contains by weight percent a total of 0 to 14.5 alkali metal and aluminum fluoride, about 0.5 to 12.5 cerium fluoride, a total of about 10 to 30 alkali metal and manganese carbonate, about 2 to 25 cerium oxide plus zirconium, about 0 to 25 chromium, about 0 to 10 manganese, about 5 to 15 total metal fluorides, and balance rutile.  A binder holds the flux to the stainless steel core.
Patent CA-2036944-A1 (CA)
Title: Bicomponent or blended wound closure device
Inventor: BRADLEY DOUGLAS P
IPC: A61L27/34
Filed: 1991-02-22
Abstract: 30,412 BICOMPONENT OR BLENDED WOUND CLOSURE DEVICE                            ABSTRACT                 The wound closure device is manufactured from a bicomponent surgical filament comprising a core and a sheath.  The  core can be extruded  from polyethylene terephthalate  or  polypropylene.   The  sheath  can  be selected from polybutylene terephthalate, polybutester, or nylon.  Alternatively, the filament can be a blend of polyesters selected from two or more of polyethylene terephthalate   or   polybutylene   terephthalate,   and polybutester.  The wound closure device can be a tissue repair device, vascular graft,  or a surgical mesh or suture.
Patent CA-2037031-A1 (CA)
Inventor: WANG DA Y
IPC: H01M8/04
Filed: 1991-02-25
Abstract: METHOD AND DEVICE FOR GASEOUS FUEL CELL OPERATION    Abstract A fuel cell which converts chemical energy from a fuel/ oxidant gas mixture to electricity for power  usage or gas-sensing  applications is disclosed.  The fuel cell has a solid electrolyte wall with electrodes on each side. Each side of the wall is surrounded by a partition which forms a first and second chamber whereon the fuel/oxidant gas mixture is allowed to diffuse.  Means are provided to initiate a voltage drop between the electrodes which initiates the chemical reaction.  Electricity is collected from the electrodes.  In an alternate design the fuel cell has a first and second electrolyte wall with electrodes on each side of the walls.  A partition wall separates the first and second walls thereby forming a first chamber with the first wall and the partition wall and a second chamber with the partition wall and the second wall. Gas-flow limiting means exist between the fuel/oxidant gas mixture and the first chamber and the first chamber and the second chamber.  The chemical reaction starts spontaneously and electricity is collected and stored from each set of electrodes.
Patent CA-2037203-A1 (CA)
Title: Self-charging air cleaner maintenance detector
Inventor: DUTY MICHAEL S
IPC: G01F1/34
Filed: 1991-02-27
Abstract: SELF-CHARGING AIR CLEANER MAINTENANCE DETECTOR          Abstract of the Disclosure Method and apparatus for determining and indicating the functionality of a tribo-electric air cleaner are disclosed.  The method includes providing a tribo-electric device to clean air and generating an alarm when the tribo-electric device functionality level falls below a predetermined level.  The appara-tus includes a pressure sensor to determine when the functionality of the tribo-electric cleaner is lost and to activate a sensible alarm.
Patent CA-2043875-A1 (CA)
Title: Fused yttria reinforced metal matrix composites
Inventor: SUPAN EDWARD C
IPC: C22C14/00
Filed: 1991-06-04
Abstract: ABSTRACT OF DISCLOSURE         A reinforced metal composite comprised of a mixture of fused yttria and a metal matrix selected from the group consisting of Ti, Nb, Fe, Co, Ni, Ti alloy, Co based alloys aluminides of Ti, aluminides of Ni, aluminides of Nb and their mixtures.  Preferably, the metal matrix is Ti or a Ti alloy which has a low Cl content (e.g. less than .15 wt.% Cl).            MFE: swv PTO. AX8
Patent CA-2044663-A1 (CA)
Title: Water-dispersible polyene antifungal complexes
Inventor: TANAKA MAKOTO
IPC: A61K9/107
Filed: 1991-06-14
Abstract: Abstract WATER-DISPERSIBLE POLYENE ANTIFUNGAL COMPLEXES     A water-dispersible antifungal complex and processes for preparation thereof are provided. The complex has:  (1) a polyene antifungal agent such as amphotericin B (which is preferred); and (2) one or more water-soluble adjuvants selected from pullulan, polyvinylpyrrolidone (PVP), polyethylene glycol (e.g., PEG 6000), hydroxy-propylmethylcellulose (HPMC), hydroxypropyl-cellulose (HPC), microcrystalline cellulose, gelatin, casein, casein sodium, carboxymethyl-cellulose sodium, and glycyrrhizin and glycyrrhizin derivatives (which are preferred).  The complex is preferred to have a molar ratio from about 1:20 to about 10:1 antifungal agent:adjuvants.  The complex may be prepared by the novel process of placing the agent and adjuvant in a basic solution, acidifying to about pH 6.5 to 8.0, and lyophilyzing to form a complex.  Alternatively, the complex may be prepared by the novel process of placing the agent and adjuvant in dimethylsulfoxide, adding a nonpolar organic solvent, and filtering to form a complex.
Patent CA-2046241-A1 (CA)
Title: Dispositif de serialisation et de deserialisation de donnees et systeme de transmission numerique de donnees en serie en resultant
Inventor: MARBOT ROLAND
IPC: G06F7/76
Filed: 1991-07-04
Abstract: Le dispositif de *sérialisation 15 de mots de N bits SYNC, OP,  D0-D7 produit N signaux d'horloge CL0-CL9 de période T retardés successivement de T/N pour commander des registres respectifs 36,  38, 39 pour la sortie successive des bits de chaque mot. Un additionneur 40 réunit ces bits dans un signal de transmission de données en série TS.     La  désérialisation  s'applique  notamment  aux  systèmes  de transmission  en  réseau,  et  en particulier  aux  systèmes informatiques.
Patent CA-2046895-A1 (CA)
Inventor: STEVENS THOMAS J
IPC: G01N22/00
Filed: 1990-02-09
Abstract: Apparatus for testing samples, particularly sawn timber to determine moisture content, density, presence of knots or pith, slope of grain and parallelism of fibres, using plane polarised microwave radiation. The apparatus includes means (7-11) to supply the radiation to a sample (1) and means (12-17) to detect radiation transmitted through the sample. The supply and detection means include means (10 and 14) to adjustably rotate the polarisation plane of the supplied and received microwave radiation. The apparatus may comprise one arm of a bridge circuit having another reference arm (5).
Patent CA-2047315-A1 (CA)
Inventor: SAKASHITA MAKOTO
IPC: F16G5/06
Filed: 1991-07-17
Abstract: A V-ribbed belt (10) having a load carrying section (14) with lengthwise cords (18) therein having a denier of 2,000-4,000d. The belt has a height between inside and outside surfaces thereof that is 0.95-1.15 times the distance between the laterally spaced centerlines of adjacent ribs (32,34). The invention also contemplates a method of forming the above V-ribbed belt. <IMAGE>
Patent CA-2047808-A1 (CA)
Inventor: PERE GERARD
IPC: F16J13/06
Filed: 1991-07-24
Abstract: SOCIETE DITE : FRAMATONE           Coussin gonflable et dégonflable et vérin d'extension muni d'un tel coussin ABREGE DU CONTENU TECHNIQUE DE L'INVENTION         La présente invention a pour objet un coussin (1) gonflable et dégonflable formé par un bloc de matériau déformable élastiquement comprenant une fente interne (2) dont les parois sont jointives à l'état initial pour former une section pleine dudit bloc et un canal (3) de gonflage comportant une première extrémité (3a) disposée en regard de ladite fente interne et une seconde extrémité (3b) reliée à une source de fluide sous pression.    La présente invention a également pour objet un vérin d'extension d'un élément de liaison filetée comportant des moyens exerçant une action de piston sur ledit élément de piston formés par un coussin gonflable et dégonflable selon l'invention.         Fig. 1
Patent CA-2048500-A1 (CA)
Title: Fluid flow control and mechanical actuation system for operating a down-hole tool
Inventor: VAN BUSKIRK W JEFFREY
IPC: E21B10/32
Filed: 1991-08-06
Abstract: ABSTRACT OF THE DISCLOSURE           A fluid flow control and mechanical actuation system for controlling fluid flow in and mechanically actuating a tool includes an upwardly biased and vertically movable actuating assembly for actuating a tool upon downward movement.   Two passages extend through the actuating assembly.  A vertically and rotationally  movable  valve  having  a  radially  offset  bore extending therethrough is also provided.   The valve controls fluid flow to the two passages in the actuating assembly upon successive downward strokes of the valve so that when the bore in the valve is aligned with one of the passages in the actuating assembly, a pressure build-up occurs which is sufficient to cause the actuating assembly to move downwardly for actuating a tool.          On the other hand, when the bore in the valve is aligned with the other passage in the actuating assembly, the build-up of pressure does not occur and the downward movement of the actuating assembly is prevented.  The fluid flow control and mechanical actuation system can be used in conjunction with an underreamer as well as many other types of down-hole tools.
Patent CA-2049512-A1 (CA)
Title: Cottonbud dispenser
Inventor: WU CHING-KAO
IPC: A61F15/00
Filed: 1991-08-20
Abstract: Abstract of The Disclosure A cottonbud dispenser consisting of a base,  a  plurality of long coiled springs, pushing blocks to push said springs,  a position block, a fixing plate, a stop plate and a  transparent case body storing cottonbuds, any of said pushing blocks  below the base being possible to be pushed to the left to push a cot-tonbud in one of the rooms in the base to  extend  out  of  the said room so as to be picked up by fingers and also possible to be pushed back to its original position by the compressed  long spring after said pushing block is released.
Patent CA-2051542-A1 (CA)
IPC: B23K26/067
Filed: 1991-09-17
Abstract: A method and a device are provided for generating a multi-pulse laser beam including at least three laser beams, from a single pulse laser beam oscillated from a single laser beam source and a method and an apparatus using the pulse generator for laser beam machining with a two-wavelength multi-pulse laser beam suitable for fine-patterning a multi-layered circuit board formed of metal thin films and resin layers or ceramic bodies.          One pulse laser beam from the laser beam source is separated into linear polarized laser beams in first and second directions by a polarization beam splitter, with the beam in the first direction being outputted as a first pulse beam of the multi-pulse beam.  The beam in the second direction is incident to a combination of an optical fiber or a glass plate and a 1/4 wavelength plate, and is delayed and non-linearly polarized there to become a delayed and non-linearly polarized laser beam.  The laser beam is again incident to the polarization beam splitter, where the delayed non-linearized pulse beam separated in the first direction is outputted as a second pulse beam of the multi-pulse laser beam.  The delayed non-linearized pulse beam separated in the second direction is passed again through the above-described delay and non-linearization loop to generate a third pulse beam.
Patent CA-2053078-A1 (CA)
Title: Rotary furnace oil seal employing endothermic gas purge
Inventor: SMITH JOHN W
IPC: F27B9/04
Filed: 1991-10-09
Abstract: ABSTRACT A rotary oil seal gas purge system for a rotary carburizing furnace, having a rotatable hearth in a furnace chamber containing a high carbon-potential furnace atmosphere comprising an endothermic carrier gas enriched with a hydrocarbon gas, features gas purge ports located adjacent to the oil seal(s) of the hearth for injecting non-carbon-enriched endothermic gas to purge the high carbon-potential furnace atmosphere from the area adjacent the seal(s) and prevent carbon precipitation into the seal(s).  Also disclosed is an oil seal management system for a rotary carburizing furnace including a settling tank for accepting seal oil from the furnace oil seal(s), a pump supply tank for receiving oil from the settling tank, a pump for pumping oil from the pump supply tank through a heat exchanger and to the furnace oil seal(s), and a centrifuge for cleaning seal oil coming from the heat exchanger before returning it to the pump supply tank.     app12203
Patent CA-2053247-A1 (CA)
Inventor: MONN JAMES A
IPC: A61K31/46
Filed: 1990-03-23
Abstract: This invention is in the field of clinical neurology and relates specifically to compounds, compositions and methods for treatment of patients with generalized epilepsy or partial (symptomatic) epilepsy using compounds of formula (I). This invention also relates to compounds, compositions and methods of treatment for drug craving in patients addicted to cocaine.
Patent CA-2054866-A1 (CA)
Title: Recessed screw and a driver bit engageable therewith
Inventor: SHINJO KATSUMI
IPC: B25B15/00
Filed: 1991-11-04
Abstract: ABSTRACT OF THE DISCLOSURE     A recessed screw having in its head a recess for engaging with a driver bit, with the recess being defined with curved sticking walls and radial or corner grooves.    Each stick-ing wall is a portion of a conical surface slanted inwardly towards a bottom of the recess.    Each corner groove extends outwards from the adjacent sticking walls in radial direc-tion.   A pair of vertical side walls lying parallel with the recessed screw's axis define each corner groove.   The driver bit has protrusions tightly fittable in the recess, which recess may be a superimposition of two square holes disposed symmetrically with a phase shift of 45° around the axis so as to provide eight corner grooves.    Each sticking wall may be formed at a place where the side walls intersect one another.   The driver bit may comprise a shank and a bit portion which extends from the shank and formed with eight V-shaped grooves extending axially of the bit so that eight blades are defined each between the two V--shaped grooves.    A bottom of each V-shaped groove or a top of each blade may be a curved wall to closely contact with the sticking walls in the recess.
Patent CA-2058238-A1 (CA)
Title: Process for bending hollow metal profiles and an apparatus for carrying out this process
Inventor: SPAETH WALTER E
IPC: B21D9/10
Filed: 1991-12-20
Abstract: ABSTRACT OF THE DISCLOSURE      A roller-mandrel-thrust-bending process (RDSB process) is used to bend metal hollow profiles.  A hollow profile that is to be bent has its inner space filled and introduced into a bending station consisting of a plurality of bending rollers, the hollow profile being bent as a result of the movement of the bending rollers in the bending plane.  In order to retain the advantages of the roll-bending process while avoiding the high costs of this process, provision is made that the hollow profile of the workpiece is filled by a base mandrel and that the work piece is introduced into the bending station under the action of a thrust force.  The work piece that is to be bent is forced over the fixed mandrel within the bending zone as a result of this thrust force and the frictional force of the profiled rollers, and bent in the X-Y-Z plane by the action of the bending station.
Patent CA-2058841-A1 (CA)
Title: Process for removing polluting nitrate ions from aqueous solutions
Inventor: LETOURNEUX JEAN-PIERRE
IPC: C02F1/52
Filed: 1992-01-07
Abstract: Process for the purification of aqueous solutions contaminated with nitrate ions. This process is characterised in that it consists in precipitating double or mixed hydrated calcium nitroaluminates, such as especially calcium mononitroaluminate hydrate, by addition of at least one agent introducing the element aluminium and at least one agent introducing the element calcium into the solutions to be treated, the overall molar ratio of the element aluminium to nitrate, Al/NO3, being higher than 1, the overall molar ratio of calcium to nitrate, Ca/NO3, being greater than 2, and in that the precipitation reaction is performed with stirring and at basic pH, preferably higher than 10.5. The process according to the invention is intended especially for the treatment of polluted waters such as domestic sewage and industrial effluents and for the treatment of liquid manure.
Patent CA-2060393-A1 (CA)
Title: Carbamic acid derivatives and method for preparing the same
Inventor: TAKANO YASUO
IPC: A61K31/50
Filed: 1992-01-30
Abstract: Anti-dementia medicaments comprising a carbamic acid derivatives or a phamaceutically acceptable acid addition salt thereof having anti-amnesic activity are provided.      The carbainic acid derivatives are represented by the general formula (1) (see formula I) wherein Ar denotes an aromatic heterocyclic ring or its benzene-condensed ring, which may have at least one substituent, or a phenyl group which may have at least one substituent, R1 denotes a hydrogen atom or a lower alkyl group, R2 denotes a lower alkyl group which may be substituted with a halogen atom, a phenyl group which may have at least one substituent, a naphthyl group, or a five- or six-membered heterocyclic ring and its benzene-condensed ring; X and Y, which may be the same or different, each denote a sulfur atom or an oxygen atom.
Patent CA-2064023-A1 (CA)
Title: Method of treating infertility or sub-fertility in adult men, and the use of preparations in the method
Inventor: SKAKKEBAEK NIELS E
IPC: A61K38/27
Filed: 1990-07-27
Abstract: Non-surgically correctable infertility or sub-fertility in adult men having poor semen quality is treated with injections of human Growth Hormone (hGH) in daily doses of 1 - 10 IU/m2 or in doses in combination with gonadotrophins. Increase in total semen volume and total sperm number per ejaculate up to normal figures iis obtained.
Patent CA-2065540-A1 (CA)
Inventor: PETZ FELIX A
IPC: H04L1/02
Filed: 1992-04-13
Abstract: ABRÉGÉ DESCRIPTIF Circuit déphaseur à modulation vectorielle Un tel circuit déphaseur comprend: -un circuit diviseur (10), recevant en entrée (1) un signal à déphaser et fractionnant celui-ci en deux signaux en quadrature délivrés sur deux sorties respectives, -monté sur chacune des sorties du circuit diviseur, un circuit de modulation vectorielle (20; 30), soumettant le signal fractionné respectif à une atténuation variable et à une inversion de phase éventuelle, et -un circuit combineur (40), recevant sur ses entrées les signaux délivrés par les circuits de modulation vectorielle respectifs et délivrant sur sa sortie (2) le signal déphasé. Selon l'invention, chacun des circuits de modulation vectorielle (20; 30) est essentiellement constitué d'un atténuateur du type réflectif comprenant des moyens d'ajustement d'une valeur algébrique de l'atténuation, de manière à agir par une même commande sur l'amplitude et l'inversion éventuelle de phase du signal reçu en entrée, par exemple un coupleur à quatre accès, avec un premier accès constituant l'entrée, un second accès constituant la sortie et les deux autres accès constituant des accès de commande reliés à deux charges résistives semblables, par exemple un montage différentiel de transistors à effet de champ, ces charges étant variables et contrôlées par la même commande. (Figure 1)
Patent CA-2066481-A1 (CA)
Title: Polyisocyanate mixtures, a process for their preparation and their use as cross-linking agents in coating compositions
Inventor: LAAS HANS-JOSEF
IPC: C08G18/08
Filed: 1992-04-21
Abstract: The present invention relates to polyisocyanate mixtures having a) an average isocyanate functionality of at least 4.1, b) a (cyclo)aliphatically bound isocyanate group content (calculated as NCO, molecular weight = 42) of 12.0 to 20.5% by weight, c) a chemically incorporated carboxyl group content (calculated as COOH, molecular weight = 45) of 0.01 to 5.0% by weight and d) an ethylene oxide unit content arranged within terminal or lateral polyether chains of 0 to 10% by weight (calculated as C2H4O, molecular weight = 44).      The present invention also relates to a process for the preparation of these polyisocyanate mixtures and to their use as cross-linking agents in aqueous coating compositions containing water soluble or dispersible binders or binder components.
Patent CA-2066649-A1 (CA)
Inventor: GRUENEWAELDER BERNHARD
IPC: C08G18/42
Filed: 1990-09-19
Abstract: Abstract Multipurpose adhesive surfacers The invention relates to optionally solventless two-component polyurethane surfacers containing finely divided fillers in a high pigment volume concentration based on a polyfunctional isocyanate component (B) and a polyol compo-nent (A) which is liquid at room temperature and which con-sists of mixture components containing isocyanate-reactive hydroxyl groups with an at least predominant content of branched-chain polyols  (A1)  containing ester and ether groups, which contains at least a proportion of the finely divided fillers and, optionally, the additives and which, for application, is mixed with the isocyanate component (B) and applied as a mixture which can still be processed by shaping.  To form a substantially waterproof, elastic mul-tipurpose adhesive surfacer which combines high adhesive strength with high volume stability, the polyol component (A) contains oleopolyols having an OH functionality of at least 2 to about 3 as an additional mixture component (A2) and, if desired, low-viscosity monofunctional alcohols of distinctly oleophilic character, which are at least sub-stantially involatile at room temperature,  in admixture with component (A1) as another additional mixture component (A3).
Patent CA-2068531-A1 (CA)
Title: Surface-wave reflector-filter
Inventor: MACHUI JUERGEN
IPC: H03H9/64
Filed: 1990-11-14
Abstract: (57) Abstract The invention concerns a surface-wave filter in which the acoustic wavepath is reflected in order to reduce the substrate size necessary.  The reflections are chosen so that interference due to temperature effects is excluded.  The use of filters of this kind as partial filters in a combined filter enables cross-talk to be further reduced.
Patent CA-2068557-A1 (CA)
Title: Needle disposal system comprised of blood collection holder and companion biohazard receptacle
Inventor: SAGSTETTER WILLIAM E
IPC: A61M5/32
Filed: 1992-05-13
Abstract: A needle disposal system has a blood collection holder(s) (40,70) with an engaged blood collection needle (10) and a companion biohazard receptacle (30) for disposal of the needle after used. First, the blood collection needle (10) engaged to the holder(s) (40,70) is irreversibly positively locked upon insertion (Figure 8) into respective needle removal device(s) (35,50) of the biohazard receptacle (30), thereby preventing withdrawal of the needle (10) from the biohazard receptacle (30) The needle (10) is then unthreaded from the holder (40,70) and disposed of inside the biohazard receptacle (30).
Patent CA-2071386-A1 (CA)
Title: Conformable Stretch Bandage
Inventor: PARIKH DHARNI V
IPC: D04B21/00
Filed: 1992-06-17
Abstract: A lightweight, porous knitted elastic bandage produced from a warp of false-twist synthetic yarns with a filling inlay of cotton yarn arranged in varying patterns across the warp yarns, wherein the filling cotton yarn is slack mercerized whereby to provide increased ply adhesion over that of the regular cotton yarn.