baber/WOPTO huggingface dataset:
Patent CA-2015440-A1 (CA)
Title: Golf glove
Inventor: MYERS EDWARD P
IPC: A63B23/12
Filed: 1990-04-25
Abstract: ABSTRACT OF THE DISCLOSURE:     A  golf  glove that is adapted to preclude movement  of the  end of a golf club in a golfer's hand  during  the swing,  and  especially during the uppermost portion of the swing,  is disclosed. The golf glove securely holds the  ends  of  the fourth and fifth  fingers  in  place around  the  grip of a golf club through the use  of  a fastening  means that keeps the ends of the fourth  and fifth  fingers  in a set position with respect  to  the palm  of  the  hand in the area of  the  flexor  brevis pollicus muscle of the hand.
Patent CA-2016031-A1 (CA)
Title: Process for electroplating metals
Inventor: BROWN CRAIG J
IPC: C25D21/00
Filed: 1990-05-03
Abstract: Title: PROCESS FOR ELECTROPLATING METALS Inventor: CRAIG J. BROWN                 ABSTRACT OF THE DISCLOSURE           A  process  for  electroplating  metals  in  an electroplating cell in which the anode current efficiency of the cell is greater than the cathode current efficiency. Buildup of excess metal in the cell is counteracted by circulating the plating solution through an electrowinning cell and plating out the excess metal onto cathodes in the electrowinning cell. The amount of current flowing through the electrowinning cell is controlled so that the amount of the said current which results in the deposition of metal is at least substantially equal to the amount of current flowing through the electroplating cell which results in the evolution of hydrogen gas.
Patent CA-2018471-A1 (CA)
Title: Mucoadhesive hydrogels delivery system
Inventor: KELLAWAY IAN W
IPC: A61K9/70
Filed: 1990-06-07
Abstract: MUCOADHESIVE HYDROGEL DELIVERY SYSTEM                    Abstract A mucoadhesive hydrogel drug delivery system is provided which comprises polyacrylic acid crosslinked with between about 1 and 20 percent by weight of a polyhydroxy compound, and a therapeutically effective amount of the drug to be delivered.
Patent CA-2023982-A1 (CA)
Title: Metal cladding systems
Inventor: LIM HUMPHREY
IPC: E04B9/36
Filed: 1990-08-24
Abstract: A B S T R A C T                METAL CLADDING SYSTEMS             The specification discloses a method of forming a self sustained cladding panel 10 for use in a cladding panel system for a building using a resilient metal or metal alloy sheet material. The panels have a central visible portion 12 and longitudinally extending side edges 14, 16.  The central visible portion has, in its relaxed state, a shape which is significantly different from the intended final shape and the panel is subsequently formed so that its central visible portion is resiliently formed into the final shape, with a resilient deformation taking place within the elastic range of the sheet material.  The panel is then retained in this final shape by interconnecting the longitudinally extending side edges 14, 16 either continuously or by spaced elements such as clips.
Patent CA-2024645-A1 (CA)
Title: Ultra high-speed circuit breaker with galvanic isolation
Inventor: MERTZ JEAN-LUC
IPC: H01H33/59
Filed: 1990-09-05
Abstract: ABSTRACT            ULTRA HIGH-SPEED CIRCUIT BREAKER WITH GALVANIC ISOLATION            A circuit breaker  (10)  comprises a static switch  (12) electrically connected in series with a disconnecting switch (14) having an operating mechanism (46) with a handle (48) to close and open a system of main contacts (16, 18). A voltage sensor (50) comprises an electromagnet (52) with a moving core (54)  capable of occupying an active locking position and an inactive unlocking position of the mechanism (46), respectively in the on state and in the off state of the switch (12). Opening of the disconnecting switch  (14)  is inhibited if voltage is present on the output terminals (26, 28).            Refer to figure 1.
Patent CA-2026163-A1 (CA)
Inventor: ROSE MICHAEL V
IPC: H01M10/04
Filed: 1990-09-25
Abstract: ABSTRACT OF THE DISCLOSURE           A method of making a lead-acid battery includes providing continuous lengths of end separator stock, positive plate stock, intermediate separator stock and negative plate stock with optional use of end separtaors.  The separators, positive plates and negative plates are individually severed from the continuous length of stock and sequentially formed into an assembly.  The assembly is introduced into a battery cell container.  A plurality of assemblies may be established prior to introduction into the battery cell container.  In a preferred embodi ent, the assembly zone moves relative to the cutting stations for the respective continuous lengths of stock and facilitates sequential establishment of the assembly without intermediate storage of the individual separators and elements.     The apparatus includes equipment for supplying continuous lengths of end separator stock, positive plate stock, intermediate separator stock and negative plate stock.  An assembly zone is adapted to receive the individual separator end plates from which the assembly may be introduced into a battery cell container.  In one embodiment, a separator and an associated positive or negative plate may be cut substantially simultaneously.  In another embodiment, they are cut individually.
Patent CA-2027791-A1 (CA)
Title: Organosilicon compounds containing alkenyl groups, a process for preparing the same, and the use of these organosilicon compounds
Inventor: HERZIG CHRISTIAN
IPC: C07F7/18
Filed: 1990-10-16
Abstract: ORGANOSILICON COMPOUNDS CONTAINING ALKENYL GROUPS, A PROCESS FOR PREPARING THE SAME, AND THE USE        OF THESE ORGANOSILICON COMPOUNDS      Abstract of the Disclosure Novel organosilicon compounds containing alkenyl groups and comprising units of the average formula                 (I) in which R and R1 are hydrocarbon containing groups, and A is a radical of the formula (H2C=CR4CHR3OR2)xH1-x?=CH2-y(R2OCHR3CR4=CH2)y in which R2, R3 and R4 are hydrocarbon containing groups; x is 0 or 1; y is 0 or 1, with the proviso that the sum x+y is 1 or 2; a is 0 or 1, with an average of 0.003 to 1.0: b is 0, 1, 2 or 3, with an average of 0.0 to 3.0; c is 0, 1, 2 or 3; with an average of 0.0 to 3.0; and the sum a+b+c ? 4, with an average of 1.5 to 4.0, with the proviso that each molecule contains at least one A radical and a method for preparation of the novel compounds are disclosed.
Patent CA-2028821-A1 (CA)
Title: Process for preparing carboxylic acids
Inventor: BEEVOR ROBERT G
IPC: C07C51/12
Filed: 1990-04-04
Abstract: A process for preparing a carboxylic acid having (n+1) carbon atoms (e.g. acetic acid) from an alcohol having n carbon atoms (e.g.  methanol) by liquid phase, rhodium catalysed carbonylation is provided. The process is characterised by using a catalyst stabiliser selected from certain classes of imidazolium iodides, alkyl substituted pyridinium iodides and hydroxypyridinium iodides. Most preferred are those derived from the amines 2-ethyl-4-methylimidazole, 4-methylimidazole, 4-ethylpyridine, 4-t-butylpyridine and 3,4-lutidine by quaternisation with a methyl group.
Patent CA-2028995-A1 (CA)
Title: Indirect agglutination immunoassay and apparatus therefor
Inventor: SAITO TOMO
IPC: G01N33/53
Filed: 1990-10-30
Abstract: ABSTRACT OF THE DISCLOSURE    An indirect agglutination immunoassay comprising the steps of constructing an immunoassay system comprising a test sample, and a reagent comprising magnetic particles or magnetic material containing particles to allow indirect agglutination to take place in a container, precipitating the magnetic particles or magnetic-material containing particles by the application of magnetic force, allowing the container to stand at an inclination, and judging the presence or absence of an immune reaction from the slippage state of the sedimented, agglutinated magnetic particles from the bottom of the container; and an apparatus for conducting the above agglutination immunoassay are disclosed, which apparatus comprises (a) a container which contains a test sample for immunoassays, and magnetic particles or magnetic-material-containing particles which can accept a reagent for immunoassay, (b) a magnetic sedimentation means for magnetically precipitating the components containing the magnetic particles at the bottom of the container, and (c) an inclination means for allowing the container to stand at an inclination.
Patent CA-2029764-A1 (CA)
Title: Spring biased chimney damper
Inventor: VONSICK HAL A
IPC: F23L11/00
Filed: 1990-11-13
Abstract: A chimney cap to selectively cover the outlet from the flue of the chimney which includes an open frame of selected geometric configuration located at the top of the chimney flue around the outlet, a cap to substantially cover the opening defined by the frame, bias device to bias the cap to a position separated from the frame, where a seal is provided to seal the cap and the frame when the cap is located contiguous to the frame. A guide arrangement can be provided to guide the cap toward the frame to selectively locate the seal of the cap and seal surface for the frame. A draw device can be provided to pass through the chimney flue to allow the cap to be drawn to engagement with the frame and a latch can be provided to receive the draw means to hold the cap in engagement with the frame against the bias force.
Patent CA-2031534-A1 (CA)
Title: Self-adaptive control process for piloting a physical system
Inventor: MARTIN ALAIN
IPC: F41G7/22
Filed: 1990-04-13
Abstract: ABSTRACT OF THE DISCLOSURE         In a physical system to be piloted in discrete mode, an outlet value .THETA. is related to a control variable .beta. by the equation: .THETA. = A6?.THETA. + K1?.beta. + .epsilon., in which at least one of the parameters A6 and K1 is unknown.  If Yk is the value of .THETA. at time K and if  Bck is the control command produced by the guide calculator at that time, there exist three polynomials in q-1(delay operator), E, A', N with constant coefficients determined in advance, such that at any time, following preliminary filtration (index F) by an at least first-order polynomial in q-1, the following approximation holds:  (E'?Yk)F=(A'?Yk)F?A6 + (N'Bck)F?K1 + noises.  At each step of piloting, the terms of this linear combination in A6 and K1 are calculated, at least this unknown parameter is estimated by means of a parametric variation model, and a control signal for one or more harmonic components of selected amplitudes and pulsations is added, for these instantaneous values of the parameters, by interpolation in a pre-established table which ensures that the tractions are maintained within predetermined ranges.
Patent CA-2031607-A1 (CA)
Inventor: WENZEL KENNETH H
IPC: E21B7/00
Filed: 1990-12-05
Abstract: ABSTRACT OF THE DISCLOSURE A method of sealing a pressure drop across a drill bit in rotary sealing applications consisting of the following described  steps.    Secure  a first  seal  ring  to  an  inner tubular member.    Secure  a  second  seal  ring  to  an outer tubular  member  in  which  the  inner  tubular  member  is telescopically received.   Urge the first seal ring and the second seal ring together in face to face engagement to form a mechanical seal.  The mechanical seal has a first side and a second side.   Provide a first clearance space between the first  side  of  the mechanical  seal  and  the  outer tubular member.  Provide a second clearance space between the second side of the mechanical seal and  the inner tubular member. Provide an inflow passage between the  inner tubular member and the outer tubular member communicating with one of  the clearance spaces such that drilling fluids pumped down from surface pumps  communicate  with  one  of  the  sides  of  the mechanical seal. Provide an outflow passage from the other of the clearance spaces through the outer tubular member such that drilling fluids which pass through the engaged faces of the seal rings are diverted through the outflow passage to external of the outer tubular member.
Patent CA-2032627-A1 (CA)
Title: Process for producing sodium carbonate and ammonium sulphate from sodium sulphate
Inventor: THOMPSON JACK S
IPC: C01D7/18
Filed: 1990-12-18
Abstract: A new continuous process for producing sodium carbonate and ammonium sulphate from naturally occurring sodium sulphate is disclosed.  The process comprises reacting sodium sulphate in aqueous solution with ammonia and carbon dioxide to precipitate sodium bicarbonate which is separated by filtration and converted by calcining to sodium carbonate.  The mother liquor from the precipitation of sodium bicarbonate is concentrated by evaporation to precipitate unreacted sodium sulphate, cooled to precipitated ammonium sulphate and further cooled to precipitate a double salt of sodium and ammonium sulphate.  The double salt is added to the mother liquor from the precipitation of sodium bicarbonate, prior to the evaporation, whereas the mother liquor from the precipitation of the double salt is concentrated by evaporation and added to the mother liquor from the separation of sodium sulphate.  The process, in addition to producing sodium carbonate, also produces ammonium sulphate in a purity such that it can be immediately used as a fertilizer.  The process does not produce any unwanted byproducts and avoids the use of complicated equipment, such as absorption towers.
Patent CA-2033582-A1 (CA)
Title: Fine grained batio3 powder mixture and method for making
Inventor: MAHER GALEB H
IPC: C04B35/468
Filed: 1991-01-03
Abstract: FINE GRAINED BaTiO3 POWDER MIXTURE                    AND METHOD FOR MAKING                Abstract of the Disclosure Disc and multilayer ceramic capacitors having a fine grained barium titanate body exhibit a high dielectric constant and a smooth (X7R) temperature coefficient of capacitance.  Such capacitors are made by mixing barium titanate powder of less than 0.7 micron average particle size, with around 2 weight percent of a cadmium silicate flux serving as a reactivity and sintering promoter and one weight percent Nb2O5 serving as a reactivity and sintering inhibitor.  After preparing a green body of this mixture, the body is sintered at about 1100°C.  A powder mixture for manufacture of such capacitors includes mixing powders of the three above-described materials, mildly sintering the powder mixture and if necessary comminuting the calcine to produce a ceramic powder of agglomerates of the start powders, each agglomerate having the same composition as did the precursor mixture.
Patent CA-2037858-A1 (CA)
Inventor: NOWAK WILLIAM J
IPC: G02B26/12
Filed: 1991-03-08
Abstract: Polygon scanners of the type used in ROS printers, are subject to centrifugal caused distortion at the mirror (facet) surface at certain rotational speeds. This distortion can affect the performance of the scanning beam at an image plane. Techniques are provided for predicting the radial facet dlstortion at expected rotational speeds, and for specific polygon designs. In one embodiment, the surfaces of the polygon facets are modified to incorporate the reverse of the radial distortion curve which is predicted at the rotational load. When operating at the rotational load, the facet surface then deforms to a desired planar (flat) configuration. In another embodiment, the polygon element structure is modified by adjusting the polygon modules of elasticity, weight density, and the polygon continuum to achieve a distorted facet surface at rotational speed which provides the functions normally provided by a post polygon lens.
Patent CA-2038943-A1 (CA)
Title: Screw closure for wide-necked containers provided with a tamper-evident safeguard
Inventor: ROEDER MATTHIAS
IPC: B65D41/34
Filed: 1990-07-25
Abstract: Abstract incl. reference numbers (as desired by  WIPO) In a screw closure for wide-necked containers which is provi-ded with a tamper-evident safeguard and comprises a cover de-signed to be placed on the neck of the container and a secu-rity ring (2), the security ring is provided with lugs (7) which, in the closed position of the cover (1), engage behind a projection of the neck of the container. Corresponding bul-ges (17) for the lugs (7) or for the security ring are provi-ded on the neck of the container at the level of the security ring, being arranged and designed in such a way that, when the lug or the security ring passes over the bulge on opening of the screw closure,  the security ring is expanded and breaks under the effect of weakened spots formed in the secu-rity ring.
Patent CA-2039472-A1 (CA)
Title: Segmented wheel sluice with vent port for air leakage
Inventor: HOPPE HANS
IPC: G01F11/00
Filed: 1991-03-28
Abstract: ABSTRACT   With a segmented wheel sluice having a vent port for air leakage in its housing, the sealing between the inlet port and the outlet port can be optimised if the geometry of the sluice housing and the number of wheel vanes is determined such that there are always at least two vanes between that edge of the outlet port which is swept over last of all by the vanes, and the nearer edge of the vent port, and if there is always at least one vane between that edge of the inlet port which is swept over first of all by the vanes and the nearer edge of the vent port and also if in the region of the downwardly rotating part of the wheel there is always one sealing section formed by at least three vanes.
Patent CA-2039609-A1 (CA)
Title: Compressible piston
Inventor: HORSAK JOHN J
IPC: F16J1/00
Filed: 1991-03-22
Abstract: 1.         ABSTRACT:  THIS INVENTION IS USING COMPRESSIBLE PISTON AND/OR COMPRESSIBLE CONNECTING ROD IN SUCH APPLICATIONS AS COMBUSTION ENGINES.    COMPRESSIBLE COMPONENTS WOULD TRESHOLD MAXIMUM PRESSURE IN THE CHAMBER AT THE TIME OF COMBUSTION. THIS WILL MINIMIZE STRESS ON COMPONENTS SUCH AS BEARINGS, MINIMIZE COMBUSTION KNOCK. IT WOULD ALSO ENABLE TO BUILD ENGINES WITH HIGHER COMPRESSIN RATIO THUS HIGHER EFFICIENCY.
Patent CA-2040740-A1 (CA)
Title: Form retaining holder for visored cap
Inventor: SCHOONOVER RICHARD L
IPC: A42B1/00
Filed: 1991-04-18
Abstract: ABSTRACT OF THE DISCLOSURE         A form retaining holder or case for a visored cap comprises an upper shell and a lower shell, both shell portions sized and adapted to accommodate a visored type cap, such as used in the game of baseball, when the back portion of the cap is folded forwardly into the interior of the front portion of the cap.  In such a holder, the cap is interposed between the upper shell and lower shell so that the form of the cap is retained during carriage and storage, and some modicum of protection for the cap is provided.  The upper shell and lower shell are connected by means of known fastening means and by a lip disposed on the lower surface of the visor portion of the upper shell, such lip adapted to engage the visor of lower shell therein.  Ventilation holes may be provided both upper and lower shell portions, particularly in portions adjacent to the periaphy of the crown portion of the cap where it closely accomodates the wearer's head.
Patent CA-2041502-A1 (CA)
Title: Squeeze casting powdery mold releasing agent
Inventor: HANANO TAKASHI
IPC: B22D18/02
Filed: 1991-04-30
Abstract: Abstract of the Disclosure In  this  invention;  the  squeeze  casting mold  releasing agent  comprising  the  mixture  of  the  mold  releasing base material composed of the inorganic compound and the organic compound is formed into the releasing agent wherein at least the  mold  releasing  base  material  has  the  powdery  or granulated form. Therefore, the mold releasing agent allows productions  of  castings  of  high  quality,  in  a  squeeze casting work,  with good workability and without worsening environmental situations.
Patent CA-2041545-A1 (CA)
Title: Copolyimide film with improved properties
Inventor: KREUZ JOHN A
IPC: B29C41/12
Filed: 1991-04-30
Abstract: TITLE COPOLYIMIDE FILM WITH IMPROVED PROPERTIES           ABSTRACT      Disclosed is an aromatic copolymidie film prepared by chemical conversion of a copolyamide acid solution obtained by copolymerization of an aromatic tetra-carboxylic acid component comprising from 30 to 50 mole % of biphenyltetracarboxylic acid dianhydride, 50 to 70 mole % of pyromellitic acid dianhydride, 60 to 80 mole % of p-phenylenediamine and 20 to 40 mole % or 4,4-diaminodiphenyl ether.  The aromatic copolyimide film has a low coefficient of thermal expansion, low water absorption, a low coefficient of hygroscopic expansion, high mechanical strength and is readily etchable making it suitable for use an advance electronic substrate.
Patent CA-2041902-A1 (CA)
Title: Nonaqueous liquid automatic dishwasher detergent composition
Inventor: AHMED FAHIM U
IPC: C11D17/00
Filed: 1991-05-06
Abstract: PATENT     NONAQUEOUS LIQUID AUTOMATIC DISHWASHER DETERGENT COMPOSITION                  ABSTRACT OF THE DISCLOSURE     ABSTRACT OF THE DISCLOSURE     The application is directed to a nonaqueous liquid automatic dishwasher detergent composition with improved anti-filming and anti-spotting properties and to a method of using the detergent composition. The detergent composition comprises a nonaqueous organic carrier liquid, silica, alumilla or titanium dioxide anti-filming agent, a water soluble polyacrylate anti-spotting agent, inorganic builder salts, bleach compound and detergent. The compositions provide reduced filming and spotting on dishware, glassware, china and the like, particularly in hard water. The nonaqueous liquid automatic dishwasher detergent compositions are stable in storage and are readily dispersible in water.
Patent CA-2043170-A1 (CA)
Title: Synthetic turf, method of making thereof, border strip for small size golf and understructure for artificial large size golf
Inventor: LEMIEUX ALAIN
IPC: D04H11/00
Filed: 1991-05-24
Abstract: ABSTRACT OF THE DISCLOSURE            The synthetic turf has a base made of fabric material from which upwardly projects a mass of entangled, crimped grass-like frayed blades made of polypropylene,  nylon or polyester. The blades have a length between 3/8" and 2",  a weight from 28 to 60 ounces per square foot and a denier value of about 5400. The method of treating this synthetic turf consists in sandblasting the blades from above the turf at a distance of about 3 to 4 feet with a jet of sand having a pressure of about 80 to 120 pounds per square inch and directed at an angle of about 70° to 80° from the horizontal and in a circular motion. The border strip for an artificial golf practice course comprises a body made of polystyrene, a sheet of polypropylene applied over the body and a synthetic turf covering applied over the sheet of polypropylene. The body is shaped so that the synthetic turf covering form a ball rolling surface inclined or square with respect to a central playing  surface.  The understructure for an artificial golf course comprises a plurality of platform structures arranged side-by-side in the manner of a checker-board, these structures establishing nodal points at the junctions of every group of four adjacent platform structures and a lifting jack at each of the nodal points. Bolts connect the corners of adjacent platform structures at each nodal point to a relevant one of the jacks.