baber/WOPTO huggingface dataset:
Patent CA-2154970-A1 (CA)
Title: Method for sharing secret information, generating a digital signature, and performing certification in a communication system that has a plurality of information procesing apparatuses and a communication system that employs such a method
Inventor: LOPEZ JOSE MANUEL CERECEDO
IPC: H04L9/08
Filed: 1995-07-28
Abstract: The object of the present invention is to perform verifiable secret sharing by a practical amount of calculation and a practical amount of communication.          In addition, by using this process, a shared digital signature is generated, or a shared authentication server is provided.    In a communication system where a plurality of information processing apparatuses are connected across secret communication channels and a broadcast communication channel, an information processing apparatus d generates a secret matrix from secret information s, 11, . . ., lk, extracts the first information segments for individual apparatuses i, and secretly transmits it to each apparatus i.  The information processing apparatus d performs hash function on the secret matrix and broadcasts the output value.  Each information processing apparatus i generates and broadcasts a random number, while the information processing apparatus d generates and broadcasts the second information segment from a partial array in consonance with the random number value.  Each information processing apparatus i generates the third information segment in consonance with the first information segment and the random number, and verifies that the secret information has been correctly shared by comparing the third information segment with the second.  By employing this secret information sharing method, apparatuses that belong to a group of signers cooperatively generate a signature, and a plurality of apparatuses that constitute authentication servers cooperatively provide authentication.
Patent CA-2156398-A1 (CA)
Title: Drill pipe
Inventor: MARTIN J SCOTT
IPC: E21B17/00
Filed: 1994-12-16
Abstract: A drill pipe (10, 100, 220, 200, 210, 250) is disclosed which includes a cylindrical pipe section (12), a box end (14), a pin end (16) and a hydraulic hose assembly (202, 18) or tube, which may not be sealed to pin and box ends (212, 90, 260), inserted between the box and pin ends and extending within the cylindrical pipe section. All, or the majority of drilling fluid passes through the hydraulic hose assembly (202, 18) or tube (212, 90, 260). The interior surface of the cylindrical pipe section (12) may or may not be exposed to the drilling fluid but any corrosion generated by metal-to-fluid contact is generally trapped between the hose or tube and the pipe section.  The reduced volume of the hydraulic hose assembly (202, 18) or tube (212, 90, 260) relative to conveying the drilling fluid through the interior of the cylindrical pipe section reduces significantly the waste of drilling fluid, allows the fluid to be pressurized more rapidly to initiate drilling operation, and limits fluid spill damage to the environment.
Patent CA-2158088-A1 (CA)
Inventor: MINAGAWA MITSUO
IPC: E04B1/76
Filed: 1995-09-12
Abstract: In the waterproof lightweight grain-tone decorative panel of the present invention, a waterproof grain-tone paint layer is formed on the surface of a lightweight board such as a plastic foaming board and the like. In the layer, a micro-hollow fine ceramic particle of a waterproof pressure strength of 600 kgf/cm2 or more and a crushed natural stone particle are bound with a synthetic resin waterproof binder.
Patent CA-2159369-A1 (CA)
Title: Amine stabilized amorphous phosphite
Inventor: MAHOOD JAMES A
IPC: C08K5/52
Filed: 1995-09-28
Abstract: A   solid   amorphous   phosphite   stabilizer composition  is  provided  which  exhibits  enhanced hydrolytic stability.   The stabilizer composition preferably contains from 10 to 99.9 percent by weight of a phosphorous compound selected from phosphites and phosphonites, and preferably contains from 0.1 to 10 percent by weight of an aliphatic polyamine.  The stabilizer composition exhibits enhanced hydrolytic stability, and is preferably in the form of powders or flakes.  The stabilizer composition is useful as an additive to polymeric resins as an antioxidant stabilizer.
Patent CA-2165415-A1 (CA)
Title: Soft-shelled gelatin encapsulated particles
Inventor: ADUSUMILLI PRASAD S
IPC: A61K9/66
Filed: 1994-06-01
Abstract: This invention relates to a soft-shelled gelatin capsule which contains particles in a liquid vehicle.
Patent CA-2165690-A1 (CA)
Inventor: GETLER JENS
IPC: A23P10/22
Filed: 1994-06-23
Abstract: There is described a plant and a method for producing an agglomerated powder of a milk product or a milk-like product, wherein a concentrated liquid feed of the product is atomized by an atomizer in a drying chamber, the fine particles are recirculated to the wet zone around this atomizer to perform an agglomeration of the product and the resulting agglomerates are accommodated in an internal fluid bed in the drying chamber, characterized in that the agglomerates then are transferred from the internal fluid bed to a fluidized layer in an external fluid bed and the fine particles are transferred to a separating device and splitted up by this into a first and second fraction, whereafter only the first of the fractions is recirculated to the wet zone around the atomizer in the drying chamber while the second one is led to the external fluid bed, where water, by another atomizer, is atomized over the fluidized layer of agglomerates to perform a further agglomeration of the product.
Patent CA-2165818-A1 (CA)
Title: Wallpaper paste applying apparatus and method of use
Inventor: POOLE DANIEL L
IPC: B44C7/04
Filed: 1994-06-20
Abstract: A paste dispenser (30, 414) having a paste reservoir (34, 417) and an applicator (42, 423) for containing and applying paste (32) to wallpaper (23). A package (12) having a container (13) and a base (14, 412) transformable between a package configuration wherein the paste dispenser (30, 414) is received within the container (13) and the container (13) is closed by the base (14, 412), and an applicator configuration wherein the base (14, 412) extends from the container (13) and carries the paste dispenser (30, 414). An arresting device in contact with the wallpaper (23) for limiting the flow of paste (32) from the paste dispenser (30, 414).
Patent CA-2166008-A1 (CA)
Title: Absorbent article with improved elastic margins and containment system
Inventor: LAUX DANIEL RICHARD
IPC: A61F13/15
Filed: 1995-12-22
Abstract: An absorbent article has a longitudinal length dimension, a lateral cross dimension, a front waistband portion, a basic waistband portion and an intermediate portion which interconnects the front and back waistband portions. The article includes a backsheet layer having a pair of laterally opposed side margins, with each side margin having an outwardly concave, terminal side edge contour located at appointed leg opening regions in an intermediate portion of each of the side margins. Each concave side edge contour has a selected longitudinal extent along the length dimension of the article. A liquid permeable topsheet layer is connected in superposed relation to the backsheet layer, and an absorbent body is sandwiched between the topsheet layer and the backsheetlayer. A separate, elasticized and gathered leg gusset is connected to the article along each of the appointed leg opening regions, and each leg gusset is configured to extend beyond and to bridge between opposed spaced-apart positions of an associated one of the concave side edge contours of the backsheet layer.
Patent CA-2167098-A1 (CA)
Title: Anti theft device attachable to a vehicle tire
Inventor: VERVILLE GASTON
IPC: B60R25/09
Filed: 1996-01-12
Abstract: The device comprises a vertical side member having tire side wall engaging teeth means  for engaging the tire side wall near a rim on which the tire is mounted; a horizontal shaft member having a rotatable downwardly extending  orthogonal  stem  at  one  end  and a  rotation handle at another end, the horizontal shaft member being rotatably mounted to a top of the vertical side member about at least 90° between a first position in which the stem is horizontal and a second position in which the stem  extends  downwardly; a  clamp  for  moving  the horizontal shaft member towards the vertical side member into a clamping position to clamp sides of the vehicle tire between the orthogonal stem and the vertical side member; and  a  lock  for  locking  the horizontal  shaft member in the clamping position and preventing rotation of the horizontal shaft member.   The device with the stem in the first position can be placed over the top of a  vehicle  tire  having  limited  clearance  between  the vehicle tire and a wheel fender, and subsequently the stem  can  be  rotated  by  the  handle  into  the  second position,  then clamped and  locked,  the  teeth causing damage to the tire  if  the vehicle  is  driven without first removing the device from the tire.
Patent CA-2169153-A1 (CA)
Inventor: KALAHASTHY GOPICHAND
IPC: F16L37/098
Filed: 1996-02-08
Abstract: A quick connector coupling for a fluid line includes a hollow female connector body which receives a tubular male member with a raised annular upset. A retainer is demountably coupled to the connector body. The retainer includes two spaced beams which extend through slots in the connector body from a cross member postioned outside of the connector body. The beams are positioned between the upset and an end of the connector body, and have a relaxed spacing less than the upset diameter such that the male member is secured in the connector body. A release protrusion projects from each retainer beam between the cross member and the connector body. The release protrusions have cam surfaces cooperable with an external surface of the connector body to spread the retainer beams apart when the cross member is pressed toward the connector body. <IMAGE>
Patent CA-2169968-A1 (CA)
Title: Extrudable al-mg-si alloys
Inventor: YIU HANG LAM
IPC: C22C21/02
Filed: 1994-08-30
Abstract: High strength high extrudability A1-Mg-Si alloys have the composition in weight %: Mg 0.25-0.40; Si 0.60 - 0.90; Fe up to 0.35; Mn up to 0.35 preferably 0.10 - 0.25.
Patent CA-2172291-A1 (CA)
Inventor: ROMANI GIUSEPPE
IPC: F16C25/08
Filed: 1995-08-08
Abstract: The invention relates to pressurized bearing assemblies (16, 18) for turbomachines like gas turbine engines. According to the invention, pressurized oil is used to apply an axial force to the outer bearing race (20) of a ball-bearing assembly (16). The force is transmitted through the race of the ball bearings (24) and to the inner race (22) of the bearing assembly, and is further transmitted, via the engine shaft (12), to the bearing (18) of another, axially spaced-apart bearing assembly. The force moves the balls (24, 30) in both assemblies (16, 18) into line-on-line running contact with their respective bearing races (20, 22, 26, 28) and minimizes vibration in the assemblies.
Patent CA-2176512-A1 (CA)
Title: Resonant macrosonic synthesis
Inventor: LUCAS TIMOTHY S
IPC: G10K11/04
Filed: 1995-08-17
Abstract: An acoustic resonator includes a chamber containing a fluid. The chamber has anharmonic resonant modes and provides boundary conditions which predetermine the harmonic phases and amplitudes needed to synthesize a non-sinusoidal, unshocked waveform.
Patent CA-2182485-A1 (CA)
Title: Pharmaceutically active compounds and liposomes, and methods of use thereof
Inventor: WEI YONG
IPC: C07F7/18
Filed: 1995-02-02
Abstract: This invention provides a compound having the formula R1-Y1-CHZ1-CH(NY2Y3)-CH2-Z2, wherein: R1 is a straight-chained alkyl, alkenyl or alkynyl group having from 8 to 19 carbon atoms in the aliphatic chain; Y1 is -CH=CH-, -C||C- or -CH(OH)CH(OH)-; Z1 is OH or a conversion-inhibiting group; Z2 is a conversion-inhibiting group; Y2 is H, a phenyl group, an alkyl-substituted phenyl group having from 1 to about 6 carbons in the alkyl chain, or an alkyl chain having from 1 to 6 carbons; Y3 is H or a group having the formula -C(O)R2 or -S(O)2R2; R2 is a straight-chained alkyl, alkenyl or alkynyl group having from 1 to 23 carbon atoms in the chain; and when Z2 is an amino, R2 is an aliphatic chain having from 1 to 9 or from 19 to 23 carbon atoms in the aliphatic chain.
Patent CA-2188375-A1 (CA)
Title: system for transmission of embedded applications over a network
Inventor: GOSLING JAMES A
IPC: G06F17/30
Filed: 1996-10-21
Abstract: A system and method for transmitting embedded applications over a network is disclosed, wherein a user of a computer-controlled network client, such as a remote control device used for controlling a network of computer-controlled home entertainment devices, or a Web browser running on a Web client, can request and receive compound documents that include embedded applications and/or data files that can only be processed (i.e., imaged or played) by handlers that are not resident on the client. In addition to embedded documents, the compound documents that are transmitted over the network can reference flat files (e.g, image, audio, or text files), and other compound documents. Whenever a client receives a compound document, the client determines whether it has access to all of the documents referenced in the compound document and, if not, requests the documents to which it does not have local access. So that the multiple documents embedded in a compound document can be simultaneously output by the client to a multimodal output device, the requestor includes a multi-tasking real-time kernel. This scheme allows a client user to download documents from a server that include embedded applications, which when executed on the client, allow the client to control the servers using commands downloaded from the servers.
Patent CA-2190115-A1 (CA)
Inventor: RAO R PADMANABHA
IPC: H04L47/43
Filed: 1995-05-19
Abstract: A statistical multiplexer (300) selectively passes packets of encoded data from a plurality of encoders (302) to a communication channel (330) so as to maximize the quality of the encoded data. A table is stored in a memory (313) of the statistical multiplexer (300) that has an entry for each unit of encoded data that can be transmitted over the communication channel (330) in a predetermined time interval. The statistical multiplexer (300) accesses each entry in the table to obtain a pointer, e.g., an address, to an encoder (302) that can transmit the next unit of encoded data to the communication channel (330). The statistical multiplexer (300) dynamically adjusts the data compression rate for each variable rate application so that the quality of all the encoded data streams are optimized over a window, and builds a new table that reflects the adjusted rates. In one application, the table is broken into a static table and a dynamic table.
Patent CA-2190899-A1 (CA)
Inventor: HENNIG GREGORY E
IPC: E21B33/129
Filed: 1996-11-21
Abstract: A retrievable packoff assembly for temporarily sealing a well pipe and anchoringequipment at a subsurface location within the pipe. The assembly is connected toa tubular actuation tool which is manipulated from the surface to position the assembly at a subsurface well location, set the assembly and then release from the set assembly. Right-hand tool rotation sets the assembly, releases the tool, and is subsequently employed to reengage and unset the assembly for retrieval to the surface. A bypass flow passage in the assembly is controlled by a sliding sleevevalve which is automatically closed by the right-hand tool rotation during setting and release and automatically reopened by tool rotation occurring during retrieval of the assembly. Flow through both the assembly and the bypass is confined within the actuation tool. A control flow passage in the apparatus is sealed by a retrievable blanking plug which may be removed to permit passage of equipment through the anchored assembly. The sealed assembly holds pressure from above or below. Drillpipe or other equipment may be supported in the well pipe by the set assembly.
Patent CA-2192118-A1 (CA)
Title: Brush bias polarity for dual esb cleaners without preclean corotron for triboelectric negative toners
Inventor: LINDBLAD NERO R
IPC: G03G21/10
Filed: 1996-12-05
Abstract: An apparatus and method for cleaning triboelectric negative toner particles from the photoreceptor surface without the need of a preclean corotron. To remove the residual particles, a first cleaning brush, in the direction of motion of the photoreceptor, is negatively biased to remove the positive (+) toner and charge the toner particles negative. Then, the second brush, in the direction of motion of the photoreceptor, is positively biased to remove the residual negative toner particles from the surface as the second brush contacts the surface.
Patent CA-2195762-A1 (CA)
Title: Separateur centrifuge a paroi peripherique munie d'orifices d'injection de fluide
Inventor: KNELSON BENJAMIN
IPC: B04B1/00
Filed: 1996-06-24
Abstract: L'invention concerne un bol centrifuge (10) comprenant plusieurs creux (15) espacés axialement et une enveloppe d'entourage (21) qui fait passer de l'eau en fluidisation à travers des orifices (30) percés dans la paroi périphérique du bol communiquant avec les creux. Chaque creux (15) définit une bande sur la paroi périphérique à travers laquelle passent les orifices. La paroi (11) du bol et la paroi d'entourage de la gaine (21) sont toutes deux de forme conique. Le nombre d'orifices (30) est choisi dans les bandes de telle sorte que les bandes initiales à la base du bol où se produit l'alimentation aient un nombre minimum de trous, le nombre maximum d'orifices est prévu sur les bandes se trouvant immédiatement au-dessus des bandes initiales et le nombre d'orifices décroît progressivement d'une quantité maximale dans la bande supérieure bien que le diamètre des bandes, lui aussi, augmente.
Patent CA-2199351-A1 (CA)
Title: Benzothiophenes, formulations containing same, and methods
Inventor: CULLINAN GEORGE JOSEPH
IPC: C07D409/14
Filed: 1997-03-06
Abstract: The present invention provides class of compounds of formula I     (See Fig. I) (I) and their pharmaceutically acceptable salts in which R1 is hydrogen, hydroxy, alkoxy, alkoxycarbonyloxy, alkylcarbonyloxy, arylcarbonyloxy; R~ is hydrogen, hydroxy, alkoxy, alkoxycarbonyloxy, alkylcarbonyloxy, alkylsulfonyloxy, arylcarbonyloxy, Cl or Br; R3 and R4 are independently C1-C4 alkyl, or combine with the nitrogen atom to which they are attached to form a pyrrolidino, piperidino, or hexamethyleneimino ring; X is selected from (See Fig. II, III, IV, V, VI, and VII) and Y is -CO-, -CHOH-, or -CH2-.    The compounds and pharmaceutical compositions containing the compounds, either alone or in combination with either progestin or estrogen, are useful for alleviating the symptoms of osteoporosis, cardiovascular related pathological conditions such as hyperlipidemia, and estrogen-dependent cancer.    The compounds of the present invention also are useful for inhibiting uterine fibroid disease and endometriosis in women and aortal smooth muscle cell proliferation, particularly restenosis, in humans.
Patent CA-2199451-A1 (CA)
Title: Nmr concrete analysis
Inventor: HUBER MOTI
IPC: G01R33/44
Filed: 1997-03-07
Abstract: A  method for measuring or predicting a property  of  a porous  material  while  curing, the  porous  material  including therein  a  liquid  which undergoes metamorphosis  and  which  is present in the porous material in different phases during curing, the  method  including the steps of performing a  low  frequency, spin-echo  nuclear magnetic resonance (NMR) measurement  of  each phase  of  the liquid, and correlating the  NMR  measurement,  or extrapolating  the property, in accordance with  a  predetermined relationship between the property and the NMR measurement.
Patent CA-2199888-A1 (CA)
Title: Method for improving morbidity and/or mortality
Inventor: CROPP ANNE B
IPC: A61K38/55
Filed: 1997-03-13
Abstract: Disclosed is a medicine for reducing morbidity and/or mortality in a mammal with congestive heart failure due to non-ischemic etiology, comprising amlodipine or a pharmaceutically acceptable amlodipine acid addition salt, and, optionally, a diuretic and/or digoxin.  Also disclosed is a medicine for treating patients with congestive heart failure due to non-ischemic etioloay, comprising a non-ischemic congestive heart failure treating amount of amlodipine or a pharmaceutically acceptable amlodipine salt and, optionally, a diuretic and/or digoxin.  Further disclosed are a kit which comprises a container means and a) amlodipine and a diuretic, b) amlodipine and digoxin, or c) amlodipine, digoxin and a diuretic; and a kit which comprises a container means and a) amlodipine, an angiotensin converting enzyme (ACE) inhibitor and a diuretic, b) amlodipine, an ACE inhibitor and digoxin, or c) amlodipine, an ACE inhibitor, digoxin and a diuretic.          Further disclosed are compositions comprising amlodipine or a pharmaceutically acceptable salt thereof and one or both of digoxin and/or a diuretic.
Patent CA-2200539-A1 (CA)
Title: Methode pour realiser des essais de cisaillement de bandes d'etancheite bitumineuses enrobees dans du beton
Inventor: BALLIVY GERARD
IPC: G01N3/00
Filed: 1997-03-20
Abstract: Une méthode pour effectuer un essai en cisaillement d'une bande d'étanchéité consiste à enrober la bande d'étanchéité à l'aide d'une matrice de béton en deux parties, et à appliquer une contrainte pour glisser les deux parties de la matrice l'une sur l'autre et ainsi soumettre la bande d'étanchéité à un effort de cisaillement.
Patent CA-2201205-A1 (CA)
Title: Motor vehicle headlamp
Inventor: SOSKIND YAKOV G
IPC: F21V13/00
Filed: 1997-03-27
Abstract: A vehicle headlamp may be formed from a light source; a divergent lens; and a reflector facing in a forward direction to the lens. The reflector has one or more first regions, and one or more second regions. The first region is a section of an ellipsoid of revolution with one focal point coincident with the light source, and one focal point located at the first focal point of the lens. The second regions have a surface with an elliptical vertical cross section having a first focal point coincident with the light source and a second focal point coincident with the first focal point of the lens. The second surface additionally has a horizontal axial cross section having a first focal point coincident with the light source and a second focal point axially offset from the first focal point of the lens.      The horizontal axial cross section may be elliptical, parabolic or hyperbolic. Light from the first regions is convenient to form the beam hot spot. Meanwhile, light from the second regions is convenient to form the beam spread.      In total the system provides a headlamp with a short axial dimension and a small frontal opening while meeting headlamp beam standards.
Patent CA-2201390-A1 (CA)
Inventor: LACOMBE JEAN-LOUP
IPC: C08F4/02
Filed: 1997-03-27
Abstract: A process for the manufacture of a solid catalytic compound comprises: (a) contacting a solid support consisting of at least 5 hydroxyl groups attached to the surface per mm<2> and an organic magnesium derivative, to obtain a solid; (b) contacting this solid with a colouring agent to obtain a second solid and (c) impregnating the second solid with a transition metal. Also claimed are: (i) a solid catalyst obtained by the claimed process; (ii) a process for the preparation of a prepolymer using the catalyst made by the claimed process; (c) a prepolymer which undergoes polymerisation in the claimed process; (d) a process of (co)polymerisation of at least one olefin in the presence of the claimed catalyst or prepolymer; and (e) an ethylene/alpha-olefin copolymer.