baber/WOPTO huggingface dataset:
Patent CA-2153171-A1 (CA)
Inventor: ADDEO ERIC JOHN
IPC: H04N7/26
Filed: 1994-01-11
Abstract: A teleconferencing system (100) is disclosed having a video camera for generating a video signal representative of a video image of a first station B.  A microphone array (150, 160) is also provided in the first station for receiving a sound from one or more fixed non-overlapping volume zones (151-159) into which the first station is divided. The microphone array is also provided for generating a monochannel audio signal (170) representative of the received sound and a direction signal indicating, based on the sound received from each zone, from which of the volume zones the sound originated. The teleconferencing system also includes a display device (120A) at a second station A for displaying a video image of the first station. A loudspeaker control device (140) is also provided at the second station for selecting a virtual location (121) on the displayed video image depending on the direction signal, and for generating stereo sound from the monochannel audio signal which stereo sound emanates from the virtual location on the displayed video image.
Patent CA-2153714-A1 (CA)
Title: Collapsible sled with automatic locking means, and methods of constructing and utilizing same
Inventor: ULICNE JOSEPH A
IPC: A45F4/10
Filed: 1995-07-12
Abstract: A collapsible sled for transporting items having a front section and a rear section pivotally connected to each other so as to be positioned in operable and collapsible positions. The sled includes a runners, each of which includes a V-shaped blade and a pawl and ratchet assembly for automatically locking each runner into an operable position relative to the front and rear sections; a snap lock for locking the front and rear sections into the collapsible position; and a slidable lock for locking the runners to the front and rear sections when the sled is in the collapsible position.
Patent CA-2154497-A1 (CA)
Title: Production technique for blocks of hot melt adhesives
Inventor: RODGERS ANTHONY P
IPC: C09J5/00
Filed: 1995-08-10
Abstract: In a process for the packaging of molten hot melt adhesive in a film cavity wherein the adhesive is filled into the cavity at a temperature above the melting point of the film and wherein the film cavity is in direct contact with a liquid or gaseous heat sink the improvement which comprises using as the film a heat sealable film at least a portion of which is water soluble.
Patent CA-2154699-A1 (CA)
Inventor: BANGERTER FRED F
IPC: H05B41/392
Filed: 1994-03-31
Abstract: Apparatus and methods for AC power regulation primarily intended for inductive loads (e.g., fluorescent lights, motors, etc.) which provide substantial reduction in power consumption while also providing a leading power factor, reduced harmonic distortion, reduced crest factor and reduced noise. The system is self-adjusting for a wide range of loads and can reduce power consumption by 25 percent in lighting loads while producing minimal reduction in light output. The system utilizes a Triac and parallel capacitor bank in series with the load. The Triac is turned on in response to a near-zero differential voltage measured across the Triac and is turned off near the peak of each AC half cycle by shunting current around the Triac. The capacitor absorbs the inductive turn-off voltage spike caused by the collapsing magnetic field in the ballast at the instant of Triac turn-off. This energy, in turn, provides longer on-period for the lamp, thereby permitting more light and increased operating efficiency. The turn-off time is adjusted to regulate power at a reduced level responsive to line voltage, load current and load power-sense signals.
Patent CA-2155616-A1 (CA)
Title: Apparatus for digitizing ac signals of unknown or changing frequency
Inventor: ENGLE JOSEPH CHARLES
IPC: G01R19/25
Filed: 1995-08-08
Abstract: The frequency and sampling interval for synchronous sampling of an ac signal of unknown or varying frequency are accurately determined within one cycle by apparatus including an input circuit which generates a single input pulse for each cycle of the ac signal. The count of clock pulses maintained by a free running counter is recorded at each input pulse. The frequency of the ac signal is determined from the period of the ac signal calculated from the difference in the count stored at consecutive input pulses. This difference in the count is divided by the desired sampling rate to generate the sampling interval which is repetitively added to the current running count to generate an interrupt count. A sampling interrupt utilized by an analog to digital converter to digitize the ac signal is generated when the running count equals the interrupt count. The same sampling interval is used for each phase of a multiphase signal; however, a separate sampling interval is established for each ac signal in a multisignal system.
Patent CA-2155753-A1 (CA)
Title: Hook for a hook and loop fastener
Inventor: KENNEDY WILLIAM J
IPC: A44B18/00
Filed: 1994-02-10
Abstract: This invention describes a hook design for the hook portion of a hook and loop fastener system, and the hook strip made up of a multiplicity of such hooks projecting from a common base. The hook design encompasses a thickened stem portion (14) projecting from the base (12) and connecting to lobes (9) of a crook portion at a neck (15). The stem portion (14) is substantially thicker than the crook portion and terminates at the neck. The lobes (9) and the stem (14) are tapered whereby the hook can be easily withdrawn from its mold cavity during the molding operation. The hook characterized by improved engageability and closure performance.
Patent CA-2158833-A1 (CA)
Inventor: WOLFF RICHARD SAUL
IPC: H04M3/487
Filed: 1994-02-17
Abstract: L'invention est constituée par une méthode et un système de gestion des appels téléphoniques qui comprennent un gestionnaire téléphonique personnel (12) et qui utilisent des fonctions de signalisation, de messagerie et d'alerte en mode bidirectionnel sans fil hors bande pour filtrer, contrôler et acheminer les appels et y répondre, ainsi que pour transmettre sous forme auditive à l'appelant les messages textuels des abonnés demandés.  l'aide d'un trajet de signalisation/messagerie hors bande (16), le gestionnaire téléphonique personnel (12) libère l'abonné demandé de l'obligation de maintenir sa connectivité avec le réseau téléphonique, d'informer les autres abonnés de sa position du moment et de s'abonner à un service de téléphonie cellulaire et de l'utiliser. La méthode et le système de l'invention permettent également les transmissions bidirectionnelles de données sans fil avec des ordinateurs portatifs (18) dotés d'émetteurs-récepteurs. Ainsi, le système de l'invention peut offrir un ensemble d'options temps réel, dont le filtrage des appels par l'abonné demandé au moyen d'informations identifiant le numéro de téléphone du demandeur, le réacheminement d'un appel à une tierce personne ou à une boîte vocale, ou la retransmission sous forme auditive à l'appelant du message textuel de l'abonné demandé.
Patent CA-2162239-A1 (CA)
Title: Cuvette conveyor and sensor
Inventor: VERSLUYS RICHARD JAMES
IPC: G01N35/04
Filed: 1995-11-06
Abstract: A conveyor and a method of providing a reaction cuvette using a conveyor, wherein a sensor is included to sense whether more than one cuvette is being conveyed. Because the cuvettes are received from a stack, one at a time, the sensor determines if two stacked cuvettes are present on the conveyor instead of one, by sensing the presence or absence of a cuvette projecting above the top of the desired cuvette.
Patent CA-2164187-A1 (CA)
Inventor: SANDUJA MOHAN L
IPC: B05D7/14
Filed: 1995-11-30
Abstract: This invention relates to the coating of steel parts with organic polymeric materials for resistance to corrosion, abrasion, impact, salt solutions of high and low pH (both in liquid as well as vapor state) and corrosive atmospheric gases under the environment of high relative humidity and ambient conditions of temperature and pressure. To obtain secure and permanent adhesion of the coating on the steel article a polymeric coating is formulated so as to achieve chemlcal grafting to the steel face. This involves the use of monomers prepolymers, catalyst and a graft initiator system. The monomers are preferably polyfunctional and when applied onto a metallic substrate, react via graft polymerization with the metal to form a polymerized layer coated onto the surface of the steel substrate. The monomers and prepolymers are so selected that when polymerized onto steel the coating has substantially zero moisture vapor-gas transmission rate and consequently acts as a barrier to moisture, oxygen and other gases from coming in contact with the surface of the steel substrate thereby improving the protective potential of the coating. Fillers may be included in the coating material to enhance physical or wear characteristics. Other components that can be added are slip agents wetting agents, thixotropic promoters and adhesion promoters. This coating process is particularly advantageous for use with steel parts used in the manufacture of cranes.
Patent CA-2167185-A1 (CA)
Inventor: DUPONT MARTINE JEANNE
IPC: C08K5/378
Filed: 1994-07-12
Abstract: Cette composition de copolymère en bloc durcissable aux ultraviolets est constituée (a) de 100 parties en poids d'un copolymère en bloc comportant au moins un bloc A de polymère dérivé d'un composé aromatique du monovinyle et d'au moins un bloc B de polymère dérivé d'un diène conjugué, et se caractérise en ce que: le contenu du composé aromatique de monovinyle se situe dans une fourchette comprise entre 5 % et 50 % du poids total du copolymère en bloc, le poids moléculaire apparent de chaque bloc A se situe dans une fourchette comprise entre 1.000 et 50.000, et le poids moléculaire apparent de chaque bloc B se situe dans une fourchette comprise entre 10.000 et 250.000, et (b) de 0,5 à 30 parties en poids d'au moins un photoinitiateur. Ce copolymère a pour caractéristique de comporter plusieurs bras. Le photoinitiateur utilisé contient un groupe carbonyle directement lié à une structure de cycle aromatique.
Patent CA-2169046-A1 (CA)
Inventor: SKEES HUGH B
IPC: B42D15/08
Filed: 1996-02-07
Abstract: A mailer or business form intermediate including a built-in two-ply card is provided.  The mailer comprises a single substrate sheet divided into three or four panels.  The two-ply card is fashioned from lines of weakness forming single card plies in two adjacent panels which when folded come into contact and are held together with adhesive to form the two-ply card.  Additional adhesives are employed to seal the mailer.  Alternative embodiments include four panels in a side-by-side arrangement or a business form embodiment wherein the additional adhesives are not employed.
Patent CA-2169827-A1 (CA)
Inventor: MCNAIR BRUCE EDWIN
IPC: G06Q20/40
Filed: 1994-08-01
Abstract: An authenticator card includes a liquid crystal display (107) arranged to exhibit a dynamically changeable bar code pattern (230) that represents an account number (217) and, optionally, a PIN (219) and/or expiration date. The card includes circuitry for periodically changing the bar code in accordance with a predetermined algorithm (214). When the card is presented by a user to a merchant to authenticate the identity of the user in connection with a business transaction, the bar code is scanned by a conventional bar code reader. The code is converted to electronic form and transmitted to a verification processor to be authenticated. During authentication, a corresponding algorithm is used to validate information from the received signal, enabling a database query to determine validity of the card. Advantageously, the card can be mass produced at low cost and a readily available bar code scanner provides a simple interface when the card is presented for authentication.
Patent CA-2170456-A1 (CA)
Inventor: TABUCHI HIROSHI
IPC: B22F1/052
Filed: 1996-02-27
Abstract: A metal matrix composite comprises  2 to 80 volume % of .alpha.-alumina powder as a reinforcement.  The .alpha.-alumina powder comprises polyhedral primary particles substantially having no fracture surface, D50 of .alpha.-alumina powder is 0.1 µm to 50 µm and a ratio of D50 to D10 is not more than 2, wherein  D10 and D50 are particle sizes at 10% and 50% cumulation from the smallest particle side of a weight cumulative particle size distribution, respectively.     A process for producing the metal matrix composite       comprises  infiltrating a molten metal into the .alpha.-alumina powder under pressure or non-pressure.
Patent CA-2174397-A1 (CA)
Title: Pavement sealing product and method
Inventor: SMITH GERALD R
IPC: E01C23/09
Filed: 1996-04-17
Abstract: A pavement repair structure and method of repair for forming a bond between vertical surfaces in asphalt pavement.  The repair structure comprises a flexible, internal layer that is impregnated with an adhesive, asphalt medium and an additive agent incorporated in the asphalt medium to reduce the tackiness and lower the temperature sensitivity of the asphalt medium to define an elongated strip.  A cut in the asphalt pavement caused by either a saw or a jack hammer is sealed by providing a pavement repair structure which will form an extremely strong bond between the cut edge of the pavement (the clean and smooth edge caused by the saw or the rough and jagged edge caused by the jack hammer) and the patch of new asphaltic concrete mix.  The product is also able to form a bond which is waterproof and will resist cracking due to extreme temperatures, the thermal expansion and contraction which the pavement will experience and deflection of the pavement under traffic loading.  The pavement repair structure has a varying thickness of one half inch with a melting point such that when in contact with hot asphaltic concrete at normal mixing temperatures, the free asphalt contained in the pavement repair structure will flow into the voids of the cold surface on one side and will unite freely with the hot asphaltic mixture on the other side to create a homogeneous mass of all three components (the cold mixture in place, the pavement repair structure and the new hot asphaltic concrete mixture being put in place).
Patent CA-2174696-A1 (CA)
Title: Sports racket
Inventor: DICERBO CHARLES
IPC: A63B49/02
Filed: 1996-04-22
Abstract: This invention relates to an improvement in a split bridge sports racket having a frame with a rim and a handle, the rim being formed with string tunnels through which the string extends to form an impact surface, the handle having a Y configuration, the arms of which merge with the rim to define a bridge section of the rim that extends between the ends of the arms of the Y configuration, the bridge having a discontinuity, the free ends of the bridge at the discontinuity articulating with a bridge insert to reduce player arm stress in use.  The improvement resides in providing a bridge having a length to accommodate at least four central longitudinal string tunnels of the racket with each central longitudinal string tunnel extending in the same direction as their respective longitudinal strings through the said bridge and wherein a support plug is mounted within the hollow of each of the free ends of the bridge to limit the movement of the free ends during play and prevent cracking of the frame from use.
Patent CA-2178843-A1 (CA)
Title: Coating composition containing optically-variable pigment and black pigment
Inventor: JOHNSON DANIEL W
IPC: C09D5/36
Filed: 1994-12-05
Abstract: A coating composition is described comprising a polymer resin binder and optically variable thin film pigment flakes. The pigment flakes have a multilayer thin film interference structure comprising a metal reflector layer having first and second parallel planar surfaces and, disposed on at least one of said first and second planar surfaces, at least one transparent dielectric layer. The coating composition further comprises a black pigment. This coating composition can be used to prepare a variety of coatings, especially color-plus-clear composite coatings such as those used in the automotive industry.
Patent CA-2181946-A1 (CA)
Inventor: GANTI GIRIJA
IPC: G06T11/00
Filed: 1996-07-24
Abstract: In a communications network, techniques are disclosed for optimizing node interconnection based upon the number of communications pathways to be provided by each of the nodes. For each node, the number of communications pathways to beprovided by that node is represented in the form of a one-dimensional array. Image reconstruction techniques are applied to this one-dimensional array is used to generate a two-dimensional image. The one-dimensional array to generate vertical columns of the two-dimensional image, or alternatively, horizontal rows of the two-dimensional image. The two-dimensional image, comprised of a pixel array, is a mathematical representation of the communications network. Each pixel of the two-dimensional image represents a specific pair of nodes. Each pixel has a of the gray-scale value that signifies the number of communications pathways that are to be provided between this specific pair of nodes. The image reconstruction technique may, but need not, consist of a generally known method such as, for example, filtered back projection, convolution back projection, algebraic reconstruction, or maximum likelihood reconstruction.
Patent CA-2182585-A1 (CA)
Title: Pesticidal micronutrient compositions containing zinc oxide
Inventor: FRALEY RICHARD WAYNE
IPC: C05G5/27
Filed: 1995-02-01
Abstract: The invention is aqueous pesticidal-micronutrient composition which is readily dilutable in water to provide an effective amount of pesticide-zinc nutrient for spray application to crops which, prior to dilution, comprises by weight of the total composition: (a) about 10 to 60 % of chlorothalonil having an average particle size of approximately 1 to 10 microns; (b) about 1.0 to 10 % of at least one nonionic surfactant; (c) about 0.02 to 1.0 % of a heteropolysaccharide gum; (d) about 1.0 to 10 % zinc oxide having an average particle size of 1 to 10 microns; and the balance being water.
Patent CA-2182867-A1 (CA)
Title: High flow ionomer resin compositions useful for golf ball covers
Inventor: HAGMAN JOHN FRANCIS
IPC: C08F8/44
Filed: 1995-03-03
Abstract: Ionomer resins made by neutralizing acid copolymers with a high melt index, corresponding to a relatively low molecular weight, but which have been relatively highly neutralized, can be used, either alone or in blends with other ionomers, as materials for golf ball covers, without loss of key properties for that application. The materials have better flow and better processability than conventional ionomeric materials used for golf balls.
Patent CA-2183367-A1 (CA)
Title: Ready-to-use indomethacin collyre
Inventor: MAURIN FLORENCE
IPC: A61K9/00
Filed: 1996-08-14
Abstract: Ready-to-use eye lotions are aq. solns. contg. indomethacin (I) and the 1-4C alkyl or hydroxyalkyl ethers of  beta - or  gamma -cyclodextrin (II) derivs., present in a (II):(I) molar ratio of at least 10:1 and a pH of 4-6. (II) is pref. hydroxypropyl- beta -cyclodextrin with a degree of substitution of 0.4. The pH is pref. 4.5-5.5.
Patent CA-2184701-A1 (CA)
Inventor: MANSUR PIERRE G
IPC: B08B3/02
Filed: 1994-08-30
Abstract: An apparatus (10) for washing automotive, aviation, marine and general parts with a volatile solvent during maintenance, repair and rebuilding operations. The apparatus (10) includes a wash basin (14) with a drain (28) to facilitate return of the solvent to a holding tank (40) having a pump (44) therein for recirculating the solvent back to the wash basin (14) through a discharge spout (50) for washing parts. A first valve assembly (34) between the drain (28) and holding tank (40) closes during periods of non-use to prevent vapors from escaping to the atmosphere. During a timed recycling process, a second valve assembly (66) releases used, contaminated solvent from the holding tank (4) into a distillation pot (60) where the solvent is heated under vacuum to produce vapors. The vapors pass through a condenser (166) where they are cooled to a liquid state, yielding pure solvent, which is directed into the holding tank (40) for future parts washing as demanded.
Patent CA-2186021-A1 (CA)
Title: Purified dna polymerase from bacillus stearothermophilus
Inventor: RIGGS MICHAEL GARTH
IPC: C12N15/09
Filed: 1995-03-30
Abstract: Composition and methods for the expression of recombinant DNA polymerase enzymes derived from Bacillus stearothermophilus. The present invention also concerns methods for purifying recombinant Bst DNA polymerase enzymes, compositions containing the purified enzymes in a form suitable for conducting biochemical reactions, and methods for using the purified enzymes.
Patent CA-2187033-A1 (CA)
Title: Stabilized prosthetic knee
Inventor: DRAGANICH LOUIS F
IPC: A61F2/38
Filed: 1996-02-05
Abstract: A semi-constrained prosthetic knee (10) for sur-gical replacement of a dysfunctional knee includes a tibial platform (22), a movable bearing element (16), and a femoral component (12). The femoral and tibial components are typically constructed of a cobalt/chromium alloy and each includes am exten-sion for securing the component to the bone. The femoral component includes a polycentric convex bear-ing which slidably engages a movable bearing, typi-cally constructed of high molecular weight polyethyl-ene. The superior surface of the bearing element is designed to congruently slidably engage the inferior surface of the bearing portion of the femoral com-ponent throughout the flexion/extension range of the knee. The inferior surface of the femoral component is generally convex with two or more offset portions of varying radii of curvature matching complementary superior surfaces of the bearing element. The superior surface of the tibial platform is generally flat and in-cludes at least one protrusion for controlling the move-ment of the bearing element.
Patent CA-2187182-A1 (CA)
Inventor: HORAND DIETER
IPC: D21H11/14
Filed: 1995-04-07
Abstract: A web printing paper, including a coating base paper which contains mineral filler and at least one of wood pulp and cellulose as fiber components. The coating base paper has a grammage of 30 to < 58 g/m2, and a filler content, relative to its grammage, equal to 15 to 35% by weight. The coating base paper selectively contains, in addition to the at least one of wood pulp and cellulose, up to < 50% by weight recycled fibers, all weight parts adding up to 100% by weight. The printing paper further includes a coating applied to both sides of the base paper by a film press so as to absorb printing ink. The coating contains pigment and binder. The coating on each side of the base paper has a grammage of 2 to 12 g/m2, and the pigment of the coating has a grain size, 40 to 60% by weight, of < 2 µm.
Patent CA-2188800-A1 (CA)
Inventor: STEIN RUSSELL N
IPC: G21K1/02
Filed: 1995-04-24
Abstract: L'invention concerne un polariseur et un procédé permettant de le fabriquer et de l'utiliser. Ce dispositif produit une modification d'un flux de rayonnement et confère une polarisation aux photons approchant d'une face de la cible sous des angles plus ou moins droits. En conséquence, ce polariseur de flux de rayonnement réduit le nombre de photons qui ne se déplacent pas sous un angle presque droit vers la face d'une "cible" irradiée, sans réduire significativement le nombre de photons approchant du point de base minimum de la cible ou l'atteignant. En un sens, cette invention transforme une source de rayonnement isotrope normale en une source anisotrope.