baber/WOPTO huggingface dataset:
Patent CA-2145659-A1 (CA)
Title: Biometric personal identification system based on iris analysis
Inventor: DAUGMAN JOHN G
IPC: G06V10/42
Filed: 1992-10-10
Abstract: Image analysis algorithms find the iris in a live video image (10) of a person's face, and encode its texture into an "iris code" (24). Iris texture is extracted from the image at multiple scales of analysis by a self-similar set of quadrature bandpass filters defined in a dimensionless polar coordinate system. The sign of the projection of many different parts of the iris onto these filters determines each bit in an iris code. Comparisons between codes are readily implemented by the Exclusive-OR (XOR) logical operation. Pattern recognition is achieved by combining signal processing methods with statistical decision theory, leading to a statistical test of independence based on a similarity metric (Hamming distance) (26) that is computed from the XOR of any two iris codes. This measure positively establishes, confirms, or disconfirms, the identity of any individual (28). It also generates an objective confidence level (30) associated with the identification decision.
Patent CA-2145853-A1 (CA)
Title: A process for recovering alkali metal hydroxide from organic liquors
Inventor: WUNDER HEIKO
IPC: D21C11/12
Filed: 1993-09-30
Abstract: The specification describes a process for recovering alkali metal hydroxides from an organic liquor such as black liquors derived from pulping wood chips. The organic liquor is burned in a fluidised bed combustion furnace containing fluidised parti-cles of an iron rich mixed oxide of an alkali metal and iron. Particles of alkali metal ferrite are extracted from the furnace and dissolved in a solution of alkali metal hydroxide to form a more concentrated solution of alkali metal hydroxide and a precipitate of the iron rich mixed oxides of alkali metal and iron. A mixed oxide disclosed in the specification has the following formula: -NaFe5O84H2O.
Patent CA-2146107-A1 (CA)
Inventor: JASPER JOSEPH C
IPC: C22C38/00
Filed: 1995-03-31
Abstract: Steel alloys containing chromium may be hot dip aluminized in a bath having up to 15% silicon with improved wettability by using a bright prennealing practice in a box furnace having a substantially pure hydrogen atmosphere. The surfaces of the preannealed steel are easily coated if the box annealing furnace has a dew point of less than -60°C (-75°F). The preannealing should also include a minimum soak of at least 1 hour at a temperature of 675°C to 785°C (1250°F to 1450°F). It is important that the surfaces of the strip after preannealing are not removed prior to aluminizing. During the aluminizing operation, the strip temperature does not need to be heated to much above the bath temperature since the strip has already been preannealed. The furnace is maintained to avoid oxidation with an atmosphere which is typically a nitrogen, hydrogen or a hydrogen-nitrogen mixture. The surfaces of the steel prior to entering the aluminum bath have improved wettability and result in far less uncoated spots due to the improved surfaces provided by the preanneal in the dry box anneal. For ferritic stainless steels, such as Type 409, the surfaces have an iron enriched layer.
Patent CA-2147082-A1 (CA)
Inventor: VEZINET MARC
IPC: H02P1/28
Filed: 1995-04-13
Abstract: Le moteur est alimenté à travers un transformateur débitant sur un jeu de barres auxquelles sont connectés le moteur et d'autres consommateurs d'énergie électrique, ledit moteur absorbant à lui seul une puissance active supérieure ou égale à 20% de la puissance électrique installée. Pendant au moins une partie de la phase de démarrage du moteur, on alimente celui-ci avec des tensions réduites prélevées sur des prises intermédiaires des enroulements secondaires du transformateur. Application à l'alimentation d'un moteur d'entraînement d'un compresseur d'air pour usages industriels.
Patent CA-2147093-A1 (CA)
Inventor: DAFFORN RICHARD L
IPC: B60K17/28
Filed: 1995-04-13
Abstract: A bearing cap used with a power take-off unit includes a body having a relatively large central opening formed therethrough.  A first plurality of apertures is formed through the body of the bearing cap about the periphery thereof to secure it to the housing of the power take-off unit and for securing certain types of driven accessory mounting flanges to the bearing cap.  A second plurality of apertures is also formed through the body of the bearing cap about the periphery thereof.  The second apertures are provided for securing mounting flanges adapters to the bearing cap to permit certain other types of driven accessory mounting flanges to be secured thereto. Different bearing caps are provided with differing numbers of these second apertures.  The mounting flange adapters have a plurality of apertures formed therethrough.  In the preferred embodiment, the number of apertures formed through the mounting flange adapter is equal to the product of the number of apertures formed through the bearing caps with which it is to be used.
Patent CA-2147760-A1 (CA)
Inventor: CURRIE JOHN C
IPC: C22B3/26
Filed: 1993-10-26
Abstract: A process for the production of powdered metallic cobalt in-cluding ultra fine metallic cobalt by reduction of cobaltous ammo-nium sulphate solutions. A soluble silver salt, preferably silver sul-phate or silver nitrate, is added in an amount to provide a soluble silver to cobalt weight ratio in the range of 1 g to 10 g silver: 1 kg cobalt, an organic dispersant such as bone glue or polyacrylic acid, or mixture thereof, is added in an amount of 0.01 to 2.5% of the weight of the cobalt, an ammonia to cobalt mole ratio in the range of about 1.5:1 to 3.0:1, preferably about 2.0:1 is established, and the solution is heated to a temperature in the range of 150 to 250 °C, preferably about 180°C, with agitation under a hydrogen pres-sure of 3000 to 4000 kPa for an induction period and a reduction period sufficient to reduce cobaltous sulphate to cobalt metal pow-der. The ultra fine cobalt powder is submicron in size, is nodular, and has a surface area in excess of 2.0 M2/g. The particle size and surface area are essential to allow for lower sintering tempera-tures to achieve the required sintered product density.
Patent CA-2147917-A1 (CA)
Title: Speech interpreter with a unified grammar compiler
Inventor: MARTIN PAUL A
IPC: G10L15/28
Filed: 1995-04-26
Abstract: The present invention provides a unified grammar for a speech interpreter capable of real-time speech understanding for user applications running on a general purpose microprocessor-based computer. The speech interpreter includes a unified grammar (UG) compiler, a speech recognizer and a natural language (NL) processor. The UG compiler receives a common UG lexicon and unified grammar description, and generates harmonized speech recognition (SR) and NL grammars for the speech recognizer and natural language processor, respectively. The lexicon includes a plurality of UG word entries having predefined characteristics, i.e., features, while the UG description includes a plurality of complex UG rules which define grammatically allowable word sequences. The UG compiler converts the complex UG rules (complex UG rules include augmentations for constraining the UG rules) into permissible SR word sequences and SR simple rules (simple rules do not include any augmentation) for the SR grammar. The SR grammar is a compact representation of the SR word entries corresponding to the UG word entries, permissible SR word sequences and simple SR rules corresponding to the augmentations of the complex UG rules. The NL grammar provides the NL processor with NL patterns enabling the NL processor to extract the meaning of the validated word sequences passed from the speech recognizer.
Patent CA-2148286-A1 (CA)
Title: New phenylsulfonylureas, their preparation and their use as herbicides and plant growth regulators
Inventor: SCHNABEL GERHARD
IPC: A01N47/36
Filed: 1993-10-28
Abstract: Abstract New phenylsulfonylureas,their preparation and their use as herbicides and plant growth regulators The compounds of the formula (I)                (I) in which R1-R4, W, X, Y and Z are as defined in claim 1 are suitable for controlling harmful plants in crops. Their preparation may employ the intermediate of the formulae II and III:                                         (II)                (III)
Patent CA-2148866-A1 (CA)
Title: 8-amino-10-(azabicycloalkyl)-pyrido[1,2,3-d,e][1,3,4] benzoxadiazine derivatives
Inventor: JAETSCH THOMAS
IPC: C07D498/06
Filed: 1995-05-08
Abstract: The present invention relates to new 8-amino-10 (azabicycloalkyl)pyrido[1,2,3-d,e][1,3,4]benzoxadiazine derivatives of the general formula (I)                (I).     in which the radicals R1 to R4, Z and X1 have the meaning given in the descrip-tion, processes for their preparation and their use in antibacterial compositions.
Patent CA-2159330-A1 (CA)
Title: Inhibition of leukocyte adhesion
Inventor: LASKY LAURENCE A
IPC: A61P17/00
Filed: 1994-04-06
Abstract: This invention relates to the inhibition of intercellular adhesion mediated by L-selectin by administering a newly identified L-selectin ligand, CD34. More particularly, the invention concerns a method for inhibiting leukocyte adhesion to endothelial cells by administering an effective amount of an isolated, purified CD34 polypeptide or an antibody capable of binding native CD34.
Patent CA-2160737-A1 (CA)
Title: Interlocking structural elements and method for bone repair, augmentation and replacement
Inventor: BLACK JONATHAN
IPC: A61F2/28
Filed: 1995-10-17
Abstract: Structural elements of biocompatible material are interlocked with one another in an array to repair, augment or replace natural bone, the structural elements each including a hub having a center, and a plurality of posts projecting from the hub and spaced from one another to establish inter-post spaces between adjacent posts, each post having a roct at the hub, an opposite tip, a length, and a transverse cross-sectional configuration, the number of posts and the relative length, cross-sectional configuration, and location of adjacent posts in each structural element being such that the inter-post spaces of one structural element will receive the posts of adjacent structural elements in the array to promote interlocking of adjacent structural elements in a relatively tightly meshed relationship for resisting shear stress in essentially all directions within the array.
Patent CA-2163894-A1 (CA)
Title: Steel wire rod of high strength and steel wire of high strength excellent in fatigue characteristics
Inventor: NISHIDA SEIKI
IPC: C22C38/00
Filed: 1994-10-05
Abstract: This invention provides a high-strength steel wire material of excellent fatigue characteristics used for an extrafine steel wire of a high strength and a high ductility, such as a steel cord and a belt cord used to reinforce a rubber and an organic material for the production of a tire, a belt and a hose, and a high-strength steel wire, such as a rope and a PC wire. The present invention is characterized in that it contains 0.7-1 mass % of C, 0.1-1.5 mass % of Si, 0.1-1.5 mass % of Mn, not more than 0.02 mass % of P, not more than 0.02 mass % of S, and Fe and unavoidable impurities for the rest, not less than 80 % of nonmetallic inclusions comprising 4-60 % of CaO + MnO, 22-87 % of SiO2 and 0-46 % of Al2O3, a melting point being not higher than 1500 ~C.
Patent CA-2164465-A1 (CA)
Inventor: ICHIHARA MASAKI
IPC: H03F1/02
Filed: 1995-12-05
Abstract: A base band waveform generation circuit 10 calculates the equations: I1 = {I+Q  SQRT(4/a2 - 1)}/2; Q1 = {Q-I          SQRT(4/a2 - 1)}/2; I2 = {I-Q  SQRT(4/a2 - 1)}/2; and Q2 =          {Q+I  SQRT(4/a2 - 1)}/2, based on I and Q of a modulating signal. Where, SQRT(x) refers to a square root of x, that is, a2 = (I2)2 + (Q2)2. A quadrature modulator 12 quadrature modulates a carrier with the I1 and Q1. A quadrature modulator 22 quadrature modulates a carrier with the I2 and Q2. The output signals of the quadrature modulators 12 and 13 are amplified with a transmission power amplifiers 13 and 23, then composed.
Patent CA-2165605-A1 (CA)
Title: Resilient snap fitting retainer for printed circuit board mounting or the like
Inventor: READ J MICHAEL
IPC: H05K7/12
Filed: 1995-12-19
Abstract: A resilient snap fitting retainer provides a desired retention force despite tolerance variations.  A pair of parallel resilient legs extends from a base.  The legs are separated by a gap.  A deformable rib is provided on at least one of the legs to partially crush when the legs are compressed with sufficient force.  The partial crushing compensates for tolerance variations in the size of an opening into which the retainer is inserted or in the size of the retainer itself.  The legs are elongated and terminate in wedge shaped feet at their distal end.  The feet form a generally arrowhead-like shape for insertion into an opening. The structure of the feet and legs enables the legs to deflect toward each other (i.e., buckle) after the interior surfaces of the legs have made contact at their distal ends as the feet are pushed through the opening.
Patent CA-2167039-A1 (CA)
Inventor: LESIEUR DANIEL
IPC: C07C233/09
Filed: 1996-01-11
Abstract: Hetero-cycloalkyl derivs. of formula (I) and their enantiomers and diastereoisomers are new. R1 = alkyl opt. substd. by Q; or cycloalkyl or cycloalkylalkyl, both opt. substd. by Q'; A together with the benzene gp. = tetrahydronaphthalene, dihydronaphthalene, naphthalene, benzothiophene, 2,3-dihydrobenzothiophene; or indoline or indole both opt. N-substd. by Ra, CORa or CO2Ra; Ra = alkyl, Ph or phenylalkyl; R2 = H or alkyl; R3 = C(=X)R4 or C(=X')NHR5; X, X' = S or O; R4 = H, alkenyl, alkynyl, alkyl opt. substd. by Q, or cycloalkyl or cycloalkylalkyl both opt. substd. by Q'; R5 = H, alkyl opt. substd. by Q, or cycloalkyl or cycloalkylalkyl both opt. substd. by Q'; alkyl, alkoxy = 1-6C; alkenyl, alkynyl = 2-6C; cycloalkyl = 3-8C; Q = halo, OH, alkyl or alkoxy; Q' = halo, alkyl or oxo.
Patent CA-2168210-A1 (CA)
Title: Components and catalysts for the polymerization of olefins
Inventor: SACCHETTI MARIO
IPC: C08F4/659
Filed: 1995-05-23
Abstract: The present invention relates to components of catalysts for the polymerization of olefins comprising a metallocene compound and a magnesium halide which have particular values of porosity and surface area. In particular the components of the invention have surface area (BET) greater than about 50 m2/g, porosity (BET) greater than about 0.15 cm3/g and porosity (Hg) greater than 0.3 cm3/g, with the proviso that when the surface area is less than about 150 m2/g, the porosity (Hg) is less than about 1.5 cm3/g. The components of the invention are particularly suitable for the preparation of catalysts for the gas-phase polymerization of .alpha.-olefins.
Patent CA-2169385-A1 (CA)
Inventor: ERSKINE RAYMOND
IPC: E06B7/32
Filed: 1996-03-25
Abstract: This invention is designed for those who own small-to medium sized pets and who live in a house, apartment, or cottage with a standard sliding glass patio door to the outside.  This Dog-Gone Door will allow pets to come and go as they please.         The Dog-Gone Door is easily installed without the use of tools into the existing track and door jamb of either a left or right hand standard sliding glass patio door.   The patio door is then slid tightly against the Dog-Gone Door.   Thus, the installation is complete.         This Dog-Gone Door is a vast improvement over existing pet doors which require a hole to be cut through the solid door of the house, and once this is done, it cannot be undone.   The existing pet doors can alter their shape due to weather changes; shrinkage and expansion can occur thus causing frequent repairs.   Also, should the owners go on vacation, their house is no longer secure as it was before this cut-through pet door was installed.         On the other hand, the Dog-Gone Door needs no tools or renovations to install, and it can be removed at will and taken with the owners should they decide to move to a new home.         The Dog-Gone Door allows the owners easy exit/entry access and permits an unrestricted view of their pets in the backyard, even during the severest weather as the door uses two Double Plexi-Glass Windows.   The Upper Plexi-Glass Window sits inside its own track above a Framed Screen.   The Lower Plexi-Glass Window sits inside the other half of this track and can be raised in warm weather, in order 2.   to supply fresh air to the house.        Below this Screen, the Dog-Gone Door has two Rubber-TypeMats with a dead air space between them.   The top of those two Mats hang down freely toward the bottom of the door enabling the animal to come and go as it pleases.         On trial tests of the Dog-Gone Door, my dog quickly learned to go through his new doorway with ease, and when the door was removed, he appeared to be disappointed because he could no longer come and go as he pleased, but had to wait for the owners to let him out.         If the weather becomes too severe, (We have had the Dog-Gone Door installed when the temperature was -25C degrees, with no loss of heat or feelings of discomfort.) the Dog-Gone Door can be removed, stored, or taken with the owners to a new home leaving the house in its originally secure state.
Patent CA-2169766-A1 (CA)
Inventor: WENDELBO RUNE
IPC: C07C1/20
Filed: 1994-07-22
Abstract: The present invention concerns a microporous crystalline silico-alumino-phosphate RUW-18, the theoretical composition of which, on a water-free bast after synthesis and calcination, is: H x Si x Al y P z O  2 where x has a value between 0.005 and 0.1 and y and z are values between 0.4 and 0.6. The product has an AEI structure and possesses acidic properties. A procedure for manufacturing the product is also described. RUW-18 is suitable as a sorbent and as a catalyst in the manufacture of olefins from methanol.
Patent CA-2169794-A1 (CA)
Title: Photographic Exposure Apparatus
Inventor: YAMAMOTO MASAHIRO
IPC: G03B27/70
Filed: 1996-02-19
Abstract: A photographic exposure apparatus is provided having a light path for directing an optical pattern of a display image from an image display means to a photosensitive material and a light path for directing an optical pattern of a negative image from a negative film to the photographic material, which are selectively switched from one to the other to project each of the display and negative images on to the photosensitive material in a common exposure station.  In particular, the apparatus includes a mirror disposed turnably across and between the two light paths, and a mirror driving means for turning the mirror through a predetermined degree to switch between the light path for projecting the display image and the light path for projecting the negative image.
Patent CA-2170605-A1 (CA)
Title: Mutants of the rb and p53 genes and uses thereof
Inventor: FUNG YUEN KAI
IPC: A61K38/00
Filed: 1994-09-01
Abstract: The present invention provides mutants of the Rb and p53 genes and methods utilizing these mutants therapeutically. Along with mutated Rb genes and p53 genes, the present invention provides plasmids containing a mutated Rb gene or a p53 gene. In addition, the present invention provides cells transfected with the plasmids of the present invention. Moreover, the present invention provides for methods of treating a variety of pathophysiological cell proliferative diseases.
Patent CA-2172902-A1 (CA)
Title: Catalytic composition and method for curing urea-formaldehyde resin
Inventor: MOTTER WILLIAM K
IPC: C08L61/24
Filed: 1996-03-28
Abstract: Disclosed is a binder composition for binding substrates such as wood furnish for particleboard manufacture. The binder comprises a mixture of a first aqueous solution, comprising a buffering salt catalyst and preferably an acid, with a second aqueous solution comprising urea and formaldehyde. Methods of using the buffering salts as catalyst for curing urea-formaldehyde resins are also disclosed.
Patent CA-2173093-A1 (CA)
Title: Knitted covers
Inventor: LEEKE GARY JOHN
IPC: D04B1/00
Filed: 1996-03-29
Abstract: A fabric upholstered structure having a core (2), whose external surface is covered by a knitted fabric cover (5), the external surface of the cover having at least one strip (30) of hook member of any hook/loop fastener attached hereto, the hook member engaging knitted loops on the internal surface of the cover which are formed integrally with the knitted cover.
Patent CA-2174831-A1 (CA)
Inventor: LATELLA RICKY
IPC: H01M50/213
Filed: 1996-04-23
Abstract: A battery continuation apparatus (104) contains an electrochemical cell (1039) and a bypass mechanism (1100).  When attached to an electronic device (100), the bypass mechanism (1100) selectively connects the one electrochemical cell (1039) to power the electronic device (100) or selectively bypasses the electrochemical cell (1039) when a battery pack (102) or an additional battery continuation apparatus (2001) having a second source of power is coupled to the battery continuation apparatus (104).
Patent CA-2180929-A1 (CA)
Title: Shale containment unit for a drilling rig
Inventor: HERTZ JOSEPH DWAYNE
IPC: E21B11/00
Filed: 1996-07-10
Abstract: A shale containment unit  for  a drilling rig which includes a skid having a first side, a second side, a first end and a second end.  An end wall extends entirely across the first end of the skid.  A pair of parallel sidewalls extend from the first end of the skid at least partially along the first side and the second side.  A floor is secured to the end wall and sidewalls.   A liquid retaining dike transversely extends between the sidewalls.  The dike has a top ridge with a first slope sloping downwardly toward the first end of the skid from the top ridge to the floor.  A second slope slopes downwardly from the top ridge toward the second end of the skid.
Patent CA-2182582-A1 (CA)
Title: Compositions containing micronized nebivolol
Inventor: JANS EUGEEN MARIE JOZEF
IPC: A61K31/353
Filed: 1995-02-10
Abstract: The present invention compositions containing as active ingredient micronized nebivolol of formula (I) and ways of preparing said compositions.
Patent CA-2183371-A1 (CA)
Title: Pna combinatorial libraries and improved methods of synthesis
Inventor: COOK PHILIP DAN
IPC: C07K19/00
Filed: 1995-02-22
Abstract: New sub-monomer synthetic methods for the preparation of peptide nucleic acid oligomeric structures are disclosed that provide for the synthesis of both predefined sequence peptide nucleic acid oligomers as well as random sequence peptide nucleic acid oligomers. Further these methods also provide for the incorporation of peptide nucleic acid units or strings of such units with amino acids or strings of amino acids in chimeric peptide nucleic acid-amino acid compounds. Further disclosed are methods of making random libraries of peptide nucleic acids using the fully preformed monomers.
Patent CA-2183410-A1 (CA)
Title: Method for transmitting signaling information within a broadband isdn communication network
Inventor: GRADISCHNIG KLAUS
IPC: H04Q11/04
Filed: 1996-08-15
Abstract: The transmission of signaling information between network nodes connected to one another ensues in separate signaling channels. A signaling protocol corresponding to a broadband ISDN  layer model is respectively defined for such signaling information. Among other things, an ATM  adaption layer (S-AAL) is defined therein which, in addition to having a general adaption sub-layer (AAL5), also has two service-specific sub-layers (SSCOP, SSCF) available to it. One of these service-specific sub-layers (SSCF) is thereby modified, as compared to ITU  Recommendation Q.2140, each that, for a call set up, a communication over the respective signaling channel occurs between two network nodes connected to one another without a previous check of the transmission link.