baber/WOPTO huggingface dataset:
Patent CA-2010384-A1 (CA)
Title: Plug connection
Inventor: DURR WALTER
IPC: A61C13/265
Filed: 1989-12-04
Abstract: Plug connection for the detachable fitting of a prosthesis structure or the like to the fixing head of a peg tooth post or the like, with a plug part provided on the fixing head having an all-round constriction in a plane substantially perpendicular to the longitudinal axis of symmetry of the fixing head, a socket part carrying the prosthesis structure and an elastic clamping ring engaging behind the constriction of the plug part and accompanied by the formation of a positive connection between the latter and the socket part, the latter being elastically mounted with respect to the plug part relative to impact stresses occurring substantially in the direction of the longitudinal axis of symmetry of the fixing head, characterized in that the plug part has a cylindrical base connected to the peg tooth post and a mushroom-shaped top connected thereto and whose external diameter is at a maximum close to the end of the base remote from the peg tooth post and exceeds there the external diameter of the base and whose circumferential surface passes conically to a flattened top tip from the maximum diameter area, that the socket part is provided in the vicinity of the constriction with a ring recess for the partial reception of the elastic clamping ring and that between the conical circumferential surface of the top and the socket part is provided a bearing ring made from elastic plastic and/or rubber material.
Patent CA-2010844-A1 (CA)
Title: Cation exchange reinforced membrane and process
Inventor: KEATING JAMES T
IPC: C08J5/22
Filed: 1990-02-23
Abstract: Title Cation Exchange Reinforced Membrane and Process ABSTRACT A fluorinated cation exchange membrane is made using reinforcement of oriented, hydrolyzed yarn of a cation exchange copolymer.  Prior to use, the membrane benefits from the reinforcement, but during use the membrane is ion-conductive throughout its entire volume.
Patent CA-2012989-A1 (CA)
Inventor: SWINDERMAN ROBERT T
IPC: B65G45/16
Filed: 1990-03-23
Abstract: CONSTANT ANGLE CONVEYOR BELT CLEANER                Abstract of the Disclosure A conveyor belt cleaner for removing residue from the surface of a conveyor belt is disclosed. The conveyor belt cleaner is radially adjustable through connection with a rotatable support member positioned generally transverse to the direction of conveyor belt travel. The conveyor belt cleaner includes a scraping blade having a curvilinear scraping surface. One edge of the curvilinear scraping surface is in contact with the conveyor belt. The curvilinear scraping surface is configured in a way such that the cleaning angle formed between a first line, tangent to the curvilinear scraping surface and extending through a point where the scraping surface edge is in contact with the conveyor belt, and a second line, either tangent or parallel to the surface of the conveyor belt and extending through the same point where the scraping surface edge contacts the conveyor belt, will remain constant as the conveyor belt cleaner is radially adjusted to compensate for wear to the scraping blade.
Patent CA-2017307-A1 (CA)
Title: Process for preparing aromatic ethers
Inventor: BOTANNET BERNARD
IPC: A61K47/48
Filed: 1990-05-22
Abstract: Process for the preparation of an aromatic ether of general formula: 
<IMAGE>
 by reaction of 3-chloro-1,2-propanediol sulphate with a phenol of general formula:
 Ar-OH
 in the presence of an inorganic base. 
<??>Use of the product obtained by this process for the preparation of adrenergic  beta -blockers.
Patent CA-2020035-A1 (CA)
Title: Method for processing coal
Inventor: FRAZIER CLARENCE L
IPC: C10L5/00
Filed: 1990-06-28
Abstract: ABSTRACT    A process for recovery of combustionable coal from fine coal such  as frequently considered waste coal from mining operations includes drying and classifying the raw coal into ultra-fine  and fine  size classes.  The ultra-fine size class is directed  to  a collector  and further separated in a strictly dry  manner  while the  fine  size class is separated in a  flotation  apparatus  to divide  out  the  coal and ash  therein  which  are  subsequently screened,  with or without washing and drying at that time.   The screened  fine  size coal, after being dried, is collected  in  a stock pile, as is also any dry ultra-fine size coal as discharged by the collector.
Patent CA-2021978-A1 (CA)
Title: Solvent mixture and coating solution for use in the production of negative-working photosensitive recording materials
Inventor: ARNETH REINHOLD
IPC: G03F7/004
Filed: 1990-07-25
Abstract: Abstract of the Disclosure The invention describes a solvent mixture for photohardenable compositions, which includes (a)   a first component having (i)       a first constituent of (aa)       a polar solvent of the formula R-OH, wherein R is a H or alkyl, or (aa')      a monoalkylether or an alkylether ester of a glycol and (ii)      a second constituent of an organic solvent having a boiling point in the range of from about 60 to 160°C and comprising an aliphatic ketone, an alkanoic acid alkylester, a hydroxyalkanoic acid alkylester or a cyclic ether, in  quantitative proportions  selected  to  form  a homogeneous mixture, and b) from about 0.1 to 8% by weight, relative to the  total  solvent  mixture,  of  another solvent,  the boiling point  of which  is higher than each individual boiling point of the constituents of the first component (a). The  solvent  mixture  is  used  to  obtain coating solutions layers which have a higher photosensitivity than corresponding layers prepared without the addition of component (b).
Patent CA-2028912-A1 (CA)
Title: Battery package
Inventor: WORLEY LARRY W
IPC: B65D75/38
Filed: 1990-10-30
Abstract: BATTERY PACKAGE       ABSTRACT OF THE DISCLOSURE      A package for a plurality of dry cell batteries includes a heat shrinkable tube or sleeve dimensioned to receive the batteries in a tandem, side-by-side relationship.  The tube is heat shrunk around the batteries to form a rigid set or package.  A tear strip, affixed to an inner surface of the tube, extends between open ends of the tube.  A plurality of the individual battery sets are arranged in a back-to-back grounding.  An elongated, open-ended outer tube receives the grouped sets. The outer tube is heat shrunk around the sets to form a rigid package. An outer tear strip may be affixed to an undersurface of the outer tube to permit easy opening of the package.
Patent CA-2034448-A1 (CA)
Title: Marchette securitaire pour enfants
Inventor: PAYETTE JEAN
IPC: A47D13/04
Filed: 1991-01-17
Abstract: Les marchettes pour enfants que l'ont retrouve sur le le marché franchissent les portes. Des accidents surviennent lorsque l'utilisateur de la marchette franchit une porte qui donne accès sur un escalier. Dans la présente invention, la marchette pour enfants ne franchira pas les portes construites selon les normes standards de la construction. Un objet rigide qui peut prendre la forme d'une tige est intégré ou ajouté à la structure de la marchette et le sommet dudit objet est plus haut que le bord du cadre supérieur de la porte. Lorsque l'utilisateur de la marchette essaie de franchir une porte, le sommet de l'objet frappe le bord du cadre supérieur de la porte et arrête complètement la marchette dans sa course avant qu'elle ne puisse franchir la porte ou avant qu'elle ne puisse traverser vers une autre pièce de la maison.
Patent CA-2035020-A1 (CA)
Inventor: FAIG HAROLD J
IPC: H02P6/04
Filed: 1990-06-20
Abstract: An injection molding machine utilizing brushless DC motors (20, 124, 156, 148, 103, 176, 182) in its servomechanism drive systems.  Brushless DC motors provide a cost effective high power drive system which has the simplicity of control of brush-type DC motors.  By utilizing higher resolution encoders (39) and controlling pressure with a servomotor velocity control loop, motor cogging and zero velocity oscillations are minimized.
Patent CA-2036017-A1 (CA)
Title: Preparation of higher alkyl esters of carboxylic acids
Inventor: KING IAN R
IPC: A01N43/40
Filed: 1991-02-08
Abstract: Larger (C6-C12) esters of substituted 2-pyridinyloxyalkanoic acids, such as 1-methylheptyl (4-amino-3,5-dichloro-6-fluoro-2-pyridinyloxy)acetate, are prepared in high yield and purity by first preparing the methyl or ethyl ester and then transesterifying with a C6-C12 alcohol. The methyl or ethyl ester can be prepared by alkylation of an alkali metal salt of 4-amino-3,5-dichloro-6-fluoro-2-pyridinol with methyl or ethyl chloroacetate and the transesterification can be carried out in the presence or a tetraalkyl titanate catalyst.
Patent CA-2036779-A1 (CA)
Title: In-furnace level meter and antenna therefor
Inventor: NAGAMUNE AKIO
IPC: B22D2/00
Filed: 1991-02-20
Abstract: ABSTRACT OF THE DISCLOSURE      An  in-furnace  level  meter for measuring  a  slag level, or the like, in a convertor, and an  antenna used therefore.  An antenna position is  controlled so that the  distance  between  the  antenna  inserted  in  the convertor and the slag level can  be established to  be constant  or within  a  predetermined range.   A water-cooled  structure  antenna   is  used  as  the  antenna.
Patent CA-2039229-A1 (CA)
Title: Optical functional device and a method of driving same
Inventor: MAK HON-MING
IPC: G02F1/313
Filed: 1991-03-27
Abstract: ABSTRACT OF THE DISCLOSURE There is provided an optical functional device having a coupling portion in which two optical waveguides formed of semiconductor material are evanescent-coupled to each other and arranged in parallel and comprising voltage application electrodes electrically connected to each other and disposed on an upstream side portion of one of the two optical waveguides and a downstream side portion of the other optical waveguide and current injection electrodes electrically connected to each other, disposed on an downstream side portion of the former one of the two optical waveguides and an upstream side portion of the other optical waveguide and electrically isolated from the voltage application electrodes; wherein N-stage (N is an integer larger than 2) electrodes of reversal .DELTA. .beta. structure are continuously disposed in the optical waveguide, first electrodes electrically connected to each other are disposed on the upstream side portion of one of the two optical waveguides and the downstream side portion of the other optical waveguide between an Mth (M is an integer which satisfies the relation that 1 ? M ? N-1) stage electrode and an (M+1)th stage electrode and second electrodes which are electrically connected to each other but are electrically separated from the first electrodes are disposed on the downstream side portion of the former one of the two optical waveguides and the upstream side portion of the other optical waveguide.  The optical functional device can be operated as an optical splitter or polarization switch by combining the current injection operation and the voltage application operation with respect to the electrodes.
Patent CA-2040400-A1 (CA)
Title: Mouse with slip and rotation compensation
Inventor: NELSON ANTHONY B
IPC: G06F3/03
Filed: 1991-04-15
Abstract: TITLE: MOUSE WITH SLIP AND ROTATION COMPENSATION           INVENTORS: ANTHONY BRENT NELSON           STEPHEN JOHN GRAHAM            ABSTRACT           A mouse  for use with  a  computer  for tracing and digitizing traces on a two dimensional surface has slip and rotation compensation.  A second ball is provided with a least one counter capable of encoding X and Y direction movement of the mouse.  A first ball includes an X direction counter and a Y direction counter.  Appropriate software or hardware compensates  for  most  slip  and rotation  from discrepancies between the X, Y direction motion of the second ball and the X, Y direction motion of the first ball.  Slip and rotation discrepancies between the two balls may be accounted for. In another embodiment, a third ball  with  a  least  one  counter  provides additional information to account for substantially all slip and rotation discrepancies between the first, second and third balls. The mouse is provided with a line of sight indicator or cross hair so that accurate positions may be achieved by sight.  The three balls are preferably placed at unequal spacings from the line of sight indicator and should not be co-linear.
Patent CA-2040519-A1 (CA)
Inventor: MALANDAIN MICHEL
IPC: A01C1/06
Filed: 1991-04-15
Abstract: Le procédé comprend les étapes d'appliquer à un volume d'éléments particulaires des mouvements combinés d'agitation et de translation suivant un premier trajet défini, d'appliquer une quantité déterminée de composition pelliculante sur le volume en mouvement en au moins une zone du premier trajet, puis d'effectuer un séchage en continu des éléments pelliculés, acheminés sensiblement à la même vitesse de translation suivant un second trajet défini. Application notamment au pelliculage à fort débit de semence.
Patent CA-2042685-A1 (CA)
Inventor: REED W MICHAEL
IPC: B05D3/02
Filed: 1991-05-15
Abstract: A silicone release coating emulsion includes a reactive crosslinkable silicone, a catalyst and a high molecular weight, water soluble or water dispersible polymeric thickening agent such as polyethylene oxide.  The polymeric thickening agent has a weight average molecular weight greater than about 100,000.  The silicone release emulsion is applied as a coating to a substrate, and particularly paper, and cured to form a release coating for pressure sensitive adhesives.  The silicone emulsion exhibits improved holdout of the silicone from the substrate.
Patent CA-2044582-A1 (CA)
Title: Stand-up bag
Inventor: WILD RAINER
IPC: B65D75/58
Filed: 1990-01-25
Abstract: Abstract of the Disclosure The invention relates to a stand-up bag made of a heat-sealable or weldable plastic sheet material and adapted to contain liquid and/or pasty products.          For providing a stand-up bag of this type, which permits its contents to be?dispensed in individual metered port-ions, is designed for simple handling and conveying and for simple production and space-saving storage in the unfilled state, the invention provides that the stand-up bag is provided with a dispensing opening defined by a closeable dispenser spout having one of its ends provided with a flange by means of which it is secured to a top portion of a sidewall of the bag.
Patent CA-2044725-A1 (CA)
Title: Vacuum-suction degassing apparatus
Inventor: SANO MASAMICHI
IPC: C22B9/04
Filed: 1991-06-17
Abstract: ABSTRACT OF THE DISCLOSURE    A melt is stored in a vessel, and a lower half portion of a rod-formed porous member is immersed in the melt.  The porous member is made of a porous material having pores which is permeable to gas and impermeable to melts, such as molten metal, molten slag, and molten matte.  When the vessel is placed in a decompression container and the portion of the porous member which protrudes above a surface of the melt is put in vacuum or under reduced pressure, gases in the melt or gases produced by reactions between components of the porous member and the melt pass through pores of the porous member and are released to vacuum or depressurized atmosphere in the decompression container.  Thus, gas-forming components are removed from the melt.
Patent CA-2046016-A1 (CA)
Title: Hiv monoclonal antibody
Inventor: EDA YASUYUKI
IPC: C12P21/08
Filed: 1991-06-28
Abstract: A monoclonal antibody is described capable of binding to a glycoprotein antigen having a molecular weight of about 12 x 10 4 daltons (gp120) present in the envelope of human immunodeficiency virus (HIV) and capable of substantially neutralizing the HIV, or fragments thereof. It has the characteristics of immunoglobulin class IgG, k, being capable of binding to glycoprotein antigen having a molecular weight of 12 x 10 4 daltons (gp120) of HTLV-III MN, being capable of recognizing at least one epitope which is present in the region of the amino acid sequence 303 to 325 of gp120 of HTLV-III MN, being capable of binding to the surface of HTLV-III MN viral particles and thereby inhibiting the infection of the viral particles to CD4-positive cells, and being capable of binding to the surface of cells infected with HTLV-III MN and thereby inhibiting the syncytium formation induced by interaction between the infected cells and uninfected cells. The monoclonal antibody is useful for the prophylaxis, treatment and diagnosis of AIDS.
Patent CA-2046795-A1 (CA)
Title: High temperature mixed polyimides and composites formed therefrom
Inventor: GRIFFIN RICHARD N
IPC: C08L79/08
Filed: 1991-07-11
Abstract: PATENT     ABSTRACT OF THE DISCLOSURE            Polyimide intercondensation products are prepared from mixed dianhydrides and aromatic diamines.  One of the mixed dianhydrides must be 2,2 -bis(3,4-dicarboxyphenyl)-hexafluoropropane dianhydride (6FDA) and the other dianhydride may be oxydiphthalic anhydride (ODPA) or biphenyl dianhydride (BPDA) or mixtures thereof.  Preferred aromatic diamines are p-phenylenediamine (PPD) and/or m-phenylenediamine (MPD).  The polyimide products have increased glass transition temperatures (Tg), frequently higher than 400°C.  Composites made from the polyimides have high thermal and oxidative stability and may be used in aircraft engine hardware.
Patent CA-2048102-A1 (CA)
Title: Adjustable mascara applicator
Inventor: KINGSFORD TED I
IPC: A46B7/02
Filed: 1991-07-29
Abstract: ABSTRACT OF THE DISCLOSURE           An adjustable mascara applicator includes a comb formed by a first comb section having a first proximal end,  a first distal end, and a first set of teeth  at  the  first  distal  end,   the proximal end including opposing side walls having teeth thereon, and a second comb section having a second proximal end, a second distal end and a second set of teeth at the second distal end,   the first and second comb sections each extending in a longitudinal direction between  the  proximal  and  distal ends  thereof  for holding mascara therebetween;  a cylindrical handle fixedly connected with the proximal end of the second comb  section  and  including  an elongated  slot  for receiving the proximal end of the first comb section therethrough,  the handle being used for grasping the adjustable  mascara  applicator  during   use;    an adjustment knob rotatably connected with the handle and extending partially  therein  for  receiving  the proximal  end  of  the  second  comb  section,   the adjustment knob including an internal helical thread for meshingly engaging with the teeth at the proximal end of the first comb section so as to move the first comb  section  in  the  longitudinal  direction  with respect to the second comb section upon rotation of the  adjustment  knob,   so  as to  vary  the  spacing between  adjacent  teeth;   and  a  mascara  container removably connected with the cylindrical handle,  the container  including  an  opening  for  receiving  the distal ends of the first and second comb sections, and a wiper for wiping excess mascara from the teeth during withdrawal thereof from the container.
Patent CA-2050048-A1 (CA)
Title: Simulcast auto alignment system
Inventor: ROSE GEORGE D JR
IPC: H04W84/08
Filed: 1991-08-27
Abstract: In a multisite radio frequency simulcasting transmission system involving microwave-multiplex distribution paths to several transmitting sites, each path including manually settable amplitude and time delay devices for equalization of the modulation in signal overlap areas among the various transmitter sites, an automatic simulcast alignment device is included in each distribution path whereby transmissions between a control, point and each site transmitter are periodically tested and each path is compensated for amplitude and time delay variations to thus maintain equalized amplitude and time of arrival of the modulation in the transmitter site overlap areas. Thus, the instantaneous distribution of the FM modulation sidebands is maintained to be ideally identical in the signal overlap areas.
Patent CA-2050288-A1 (CA)
Title: Nitrate ester preparation
Inventor: SOHARA JOSEPH A
IPC: C07C203/02
Filed: 1991-01-10
Abstract: The process of the present invention provides a method of obtaining a high yield of water or acid soluble nitrate esters without the use of organic solvents in the nitration reaction or the production of unstable products or by-products. The process involves the nitration of an organic hydroxy-containing compound with a suitable nitrating agent such as nitric acid in the absence of organic solvents in the nitration reaction. The reaction mixture is neutralized, causing the nitrate esters to precipitate or separate from the neutralized nitrate solution. The nitrate ester is then recovered, and any dissolved nitrate salts can be removed therefrom by gentle washing with water or a dilute halide solution. As provided by the process of the present invention, no organic solvents are used in the nitration reaction and average yields range from about 80 % to about 95 %.
Patent CA-2051709-A1 (CA)
Title: Pantographic windscreen wiper for motor vehicles
Inventor: SCORSIROLI MARCELLO
IPC: B60S1/34
Filed: 1991-09-18
Abstract: ABSTRACT OF THE DISCLOSURE            A   pantographic   windscreen   wiper   includes   a windscreen-wiper blade, a main pivoting arm having a first end connected to and fast for rotation with a motor-driven shaft and a second end articulated to the blade about a first pin, and a secondary pivoting arm with a first end connected rotatably to a fixed shaft adjacent  the  motor-driven  shaft  and  a  second  end articulated to the blade about a second pin adjacent the first pin.  The first and second pins are on the windscreen-wiper  blade  and  are  aligned  along  its length. The first end of the secondary arm is arcuate and  has  a  spherical  recess  which  snap-engages  a spherical head carried by the fixed shaft.
Patent CA-2053872-A1 (CA)
Inventor: ALLINGTON MARCUS L
IPC: H01Q15/14
Filed: 1990-04-26
Abstract: A radar reflecting target comprises a plurality of reflecting elements (10) spread along at least one linear physical dimension of the target, the elements (10) being differingly spaced in the direction normal to said dimension so that respective retro-reflections by the elements of radio frequency energy from a remote source on a line of sight at an angle to said dimension, have differing phases and tend to cancel each other out. The invention may be applied to single or two dimensional surfaces on such vehicles as ships or aeroplanes.
Patent CA-2055452-A1 (CA)
Inventor: GEROME JACQUES
IPC: B23K26/04
Filed: 1991-01-03
Abstract: - 12 -Abrégé Procédé de fabrication de circuits imprimés souples, circuit imprimé \ fabriqué par ce procédé, et dispositif pour la mise en oeuvre de ce procédé.-L'invention concerne un procédé permettant de dénuder des zones (10,11)d'un circuit imprimé (6), d'une manière rapide et précise, aussi bien sur des conducteurs (3) qu'à côté de ceux-ci. On travaille sur une ébauche pourvue d'un revêtement isolant (4,5) pouvant couvrir tout sa surface. Sur les zones (10,11) à dénuder, on attaque le revêtement au moyen d'une tête d'usinage à un ou plusieurs faisceaux laser, commandée par un calculateur recevant les coordonnées des zones. La puissance du faisceau est modulée différemment sur les conducteurs (3) et à côté d'eux, ainsi que pour percer le circuit ou pour le découper sur son pourteur. Application à la fabrication de circuits imprimés souples. Figure 3.