baber/WOPTO huggingface dataset:
Patent CA-2170374-A1 (CA)
Title: Modified microsphere fcc catalysts
Inventor: MADON ROSTAM J
IPC: C10G11/05
Filed: 1994-09-28
Abstract: An in situ process making improved zeolitic fluid cracking catalyst by spray drying a mixture of hydrous kaolin and spinel, essentially free from metakaolin, calcining the resulting microspheres to convert the hydrous kaolin to metakaolin, and reacting microspheres composed of a mixture of spinel and metakaolin forms of calcined clay with a seeded alkaline sodium silicate solution. The weight percent of hydrous kaolin in the starting (uncalcined) microspheres is greater than the spinel content.
Patent CA-2171670-A1 (CA)
Inventor: HALEY LAWRENCE V
IPC: G01N33/22
Filed: 1996-03-13
Abstract: The present invention relates to an apparatus for laser detection of explosive residue including a laser for generating a beam of coherent light, an optical scanning device, for scanning an object to be inspected, a detector for sensing temporal and spectral information of light emmitted from the impingement of the light beam on the object and generating a data aquisition signal, a data processing device for comparing the data aquisition signal with known patterns from explosive materials, and an alarm for signalling a match between the data aquisition signal and known explosive patterns.  The detection method employing this apparatus provides the advantages that sampling can be conducted remotely and detection of explosive residue can be conducted more rapidly than according to prior art methods.
Patent CA-2172429-A1 (CA)
Title: Riveting apparatus
Inventor: DEAR AIDEN ROBERT
IPC: B21J15/16
Filed: 1996-03-22
Abstract: Riveting apparatus of the type in which an elongated mandrel (30), having an enlarged head at one end and loaded with a plurality of the tubular rivets (40) forming a column of rivets on the mandrel, is gripped by gripping means (43) at or near the end remote from the head, and reciprocated relative to an abutment (32) by relative reciprocation between the gripping means (43) and the abutment (32), the rivets (40) in the column being fed forwardly along the mandrel (30) so that the leading rivet nearest the mandrel head is positioned between the mandrel head and the abutment (32) and can then be set by moving the mandrel (30) rearwardly relative to the abutment (32) so as to draw the head of the mandrel through the bore of the rivet (40) while the rivet is supported by the abutment (32), includes pneumatically operated rivet-feeding means (55) for feeding rivets (40) forwardly along the mandrel (30), and valve means (P.1.2.) for shutting off the supply of air to the rivet feeding means (55) thereby to disable it, and the valve means (P.1.2.) is responsive to the presence or absence of a mandrel (30) in the gripping means (43), the valve means (P.1.2.) being closed in the absence of a mandrel (30) and open only in the presence of a mandrel (30).
Patent CA-2173204-A1 (CA)
Title: Multimedia collaboration system
Inventor: LUDWIG LESTER F
IPC: G06F13/00
Filed: 1994-03-16
Abstract: A teleconferencing system that integrates separate real-time and asynchronous networks - the former for real-time audio and video, and the latter for control signals and textual, graphical and other data - in a manner which closely approximates the experience of face-to-face collaboration. The system provides an audio/video (AV) path (13) for carrying AV signal among the workstations, a video mosaic generator (36) for combining images, and an audio summer or mixer (38). At least part of the AV path (13b) is implemented with unshielded twisted pair wiring. The system architecture is readily scalable to the largest enterprise network environments. It accommodates differing levels of collaborative capabilities available to individual users and permits high-quality audio and video capabilities to be readily superimposed onto existing personal computers and workstations (12) and their interconnecting LANs (10) and WANs (15). In the case of a plurality of geographically dispersed LANs (10) interconnected by a WAN (15), the demands made on the WAN are significantly reduced by employing multi-hopping techniques, including avoiding the unnecessary decompression of data at intermediate hops, as well as video mosaicing and cut-and-paste technology.
Patent CA-2174267-A1 (CA)
Inventor: CARR DANIEL J
IPC: H04H20/86
Filed: 1996-04-16
Abstract: Data communications apparatus and methods employing a bidirectional lowbandwidth channel and a unidirectional high bandwidth channel. A PC is coupled to an information source by a communications system which provides both a bidirectional low bandwidth channel between the PC and the information source and a high bandwidth channel in which the information source is the source and the PC is the sink. A component of the communications system termed the director responds to a message received in the low bandwidth channel by switching the information being sent from the information source to the PC to the high or low bandwidth channel as specified in the message. The message may come either from the PC or the information source. A graphical user interface at the PC provides the user with "buttons" to specify the bandwidth. The apparatus and methods may be advantageously employed to provide telecommuting services.
Patent CA-2174826-A1 (CA)
Title: Brake Pipe Pneumatic Valve
Inventor: LI WEI
IPC: B60T17/22
Filed: 1996-04-23
Abstract: A brake pipe pneumatic valve attachable to an end of a railway vehicle having a first flexible air hose for transmitting brake pipe pressure, and the end-of-train device with a second flexible air hose. The valve includes a housing having first, second, and third ports. The first port is releasably connectable to the first flexible air hose; the second port is releasably connectable with the second flexible air hose; and the third port is releasably matable with a coupling connected to a helper locomotive brake pipe. The valve includes a piston that divides the housing into first and second chambers. The first chamber communicates with the first and third ports; the second chamber communicates with the second port. Also, the piston has a channel therethrough connecting the first and second chambers. The valve further includes first biasing means, disposed between the housing and the piston, for selectably urging the piston towards sealing the first port. Second biasing means, disposed between the housing and the piston, for selectably urging the piston away from sealing the first port and acting to oppose the first biasing means is used, and is an operating pin. The valve includes coupling means attached to the housing releasably matable with a glad-hand coupling. The coupling means includes a mating surface with a protruding locking tongue, an aperture in communication with the third port, and a locking lip that is arranged with respect to the mating surface to form a locking channel.
Patent CA-2176217-A1 (CA)
Title: Human monocyte chemoattractant protein-1 (mcp-1) derivatives
Inventor: ROLLINS BARRETT
IPC: C12N1/21
Filed: 1994-11-07
Abstract: The invention relates to a human MCP-1 derivative, and pharmaceutical compositions thereof, wherein human MCP-1 has been modified such that the protein inhibits monocyte chemoattractant activity. Successful inhibition of the activity is found where the MCP-1 is modified in one or more of the following: a) the 28-tyrosine is substituted by aspartate, b) the 24-arginine is substituted by phenylalanine, c) the 3-aspartate is substituted by alanine, and/or d) the 2-8 amino acid sequence is deleted. The claimed MCP-1 derivatives can be administered to a patient in need of inhibiting MCP-1 monocyte chemoattractant activity. For example, the derivatives can be used to prevent restinosis, such as that which is common in a patient undergoing coronary artery angioplasty. The invention further relates to compositions and methods of inhibiting monocyte chemoattractant activity of MCP-1 employing the derivatives described.
Patent CA-2176593-A1 (CA)
Inventor: CAMPFIELD RICHARD A
IPC: B32B17/10
Filed: 1994-11-14
Abstract: Procédé de réparation d'une fissure (202) dans un pare-brise où la fissure (202) comporte une partie ouverte. La résine de réparation préconisée (230) doit présenter une viscosité minimale de 200 c.p.s.; dans une seconde réalisation elle ne doit pas dépasser 1000 c.p.s, et dans une troisième elle excède 1000 c.p.s.
Patent CA-2176854-A1 (CA)
Title: N-acyl-2 aryl cyclopropylmethylamine derivatives as melatonergics
Inventor: KEAVY DANIEL J
IPC: C07C233/12
Filed: 1996-05-17
Abstract: Certain N-acyl 2-aryl cycloalkylmethylamine derivatives are useful as melatonergic agents.
Patent CA-2177111-A1 (CA)
Inventor: COWAN JERRY W
IPC: B21D51/18
Filed: 1996-05-22
Abstract: An improved tank configuration includes a die employed to stamp a formed member. The formed member may be used as the bottom head for a portable liquid container, and is constructed so that all welding is eliminated in the corner portions of the container. A trim machine is employed to remove uneven edges from the formed part. The invention is particularly useful in constructing sloped bottom tanks of increased depth. By the present invention, a stamped configuration is provided in which a draw formed tank bottom is formed so as to allow complete and full drainage of the tank bottom. The bottom head is finish trimmed to exact dimensions so as to facilitate assembly to the shell of the tank.
Patent CA-2178473-A1 (CA)
Title: Flunisolide aerosol formulations
Inventor: TZOU TSI-ZONG
IPC: A61K9/00
Filed: 1994-11-15
Abstract: Pharmaceutical aerosol formulations comprising flunisolide, ethanol, and a propellant selected from the group consisting of 1,1,1,2-tetrafluoroethane, 1,1,1,2,3,3,3-heptafluoropropane, and a mixture thereof.
Patent CA-2182915-A1 (CA)
Title: Loom processing of hollow fiber membranes
Inventor: ALEI PHILIP E
IPC: D03D15/00
Filed: 1996-08-08
Abstract: Hollow fiber membrane modules are manufactured by weaving hollow fiber membranes into a web while the fibers still contain a residual amount of the organic liquids used in the extrusion of the fibers. The web once formed is then passed through a final solvent extraction stage, followed by drying and heating to fix the final form and permeation characteristics of the membranes, and finally rolling the web into a bundle which forms the interior of the module. The hollow fibers are woven as fill in the web.
Patent CA-2183601-A1 (CA)
Inventor: GAGNE ROBERT J
IPC: E06B3/70
Filed: 1996-08-19
Abstract: A mirror door comprising a door with opposed faces, one of which has a recess therein, and a mirror seated within the recess.  The mirror has a light reflective front face and a rear face disposed against the door, and is cooperatively dimensioned with the recess to locate its periphery adjacent the periphery of the recess.  The mirror is secured in the recess of the door by two adhesives.  The first rigid adhesive is disposed between the peripheral portions of the rear face of the mirror and the door recess, and the second adhesive is disposed between the mirror and door inwardly of the peripheral portions.  The first adhesive is  relatively rigid in comparison to the second adhesive to mount the mirror on the door in a fixed position, and the second adhesive is relatively flexible to accommodate differential expansion between the door and mirror and to dampen impact forces acting between the door and mirror.  A method for making a mirror door is also provided.
Patent CA-2184726-A1 (CA)
Title: Expandable telecommunications system
Inventor: MADONNA ROBERT P
IPC: H04L12/56
Filed: 1995-03-06
Abstract: An open, high speed, high bandwidth digital communi-cation network for connecting multiple programmable telecom-munications switches to form a large capacity, non-blocking switching system. Each network switching node includes cir-cuitry for transmitting and receiving variable-length, packe-tized information over the network, thus enabling each node to receive information from or transmit information to all other nodes. The network may carry any type of information present in the system including voice, data, video, multimedia, con-trol, configuration and maintenance, and the bandwith of the network may be divided or shared across various information types. Devices such as voice processing  resources may also interface with the network, thereby gaining direct access to all information passing through the network. Also provided are methods and packet structures for communicating information over the network. Multiple networks may be interconnected to provide even greater switching capacity or voice processing capacity.
Patent CA-2187318-A1 (CA)
Title: Facial respirator mask, part and method for the manufacture thereof
Inventor: VANDENBROUCQUE GERARD
IPC: A61M16/06
Filed: 1996-03-15
Abstract: A facial respirator mask having a concave and rigid shell (1) with an aperture for connection to a ventilating apparatus (2), characterised in that the shape of the rigid shell (1) is arranged to encompass, in addition to the nose and mouth, the whole of the adjacent part of the face defined outwardly by the jugal bone, the temporal bone squama and the lower maxilla, so as to provide a continuous engagement between the inner surface of the shell and the bone structure of the face below the forehead. The mask may be made from a material capable of being shaped by moulding on a three-dimensional model of a human face, particularly by direct moulding on the patient's face.
Patent CA-2188115-A1 (CA)
Title: Bracket assembly for mounting a shade
Inventor: YANG NELSON T G
IPC: A47H1/14
Filed: 1996-10-17
Abstract: A mounting bracket assembly is provided for supporting shades, blinds,  curtains,  cornices, and valances having a support rail, which includes an L-shaped mounting section having an integrally connected back member, interior side members and an extended top member,  and the extended top member having a U-shaped channel formed therein for fitting into a U-shaped channel of the support rail.   It also includes an L-shaped holding section having an integrally connected rear member,  exterior side members,  and a bottom support member for supporting the support rail in place.  A threaded bolt is provided for connecting an interior lip member of the mounting section with an exterior lip member of the holding section to join the mounting section and the holding section to form the mounting bracket assembly.
Patent CA-2190046-A1 (CA)
Title: Specimen transporting and processing system
Inventor: RATAJCZAK JANET
IPC: A61B10/00
Filed: 1996-11-12
Abstract: A specimen transporting and processing system having a tubular container with a collar threadedly secured at one end and with a cap applied to the collar.   The collar is temporarily locked in place on the container by means of an extending tab which is bound in place by a tape strip adhering to the tab and to the container.  When the tape strip is removed or broken, the collar can then be unscrewed and removed from the container.
Patent CA-2190825-A1 (CA)
Title: Bypass filtering
Inventor: LEFEBVRE BYRON
IPC: B29C48/05
Filed: 1995-05-05
Abstract: An oil filter (10) utilizes a thermoplastic material (22) having oil oxidation and acidification ar-resting additives mounted in a cas-ing (11) between particulate filter-ing material (19) and a felt pad (21). The thermoplastic mate-rial is desirably high molecular weight polypropylene in the form of rice-shaped pellets, or spaghetti-shaped strands. The additives in-clude about 10-17 weight % of the thermoplastic  material/additive combination, and as the thermo-plastic material is dissolved by the above ambient temperature oil, the additives are released. The thermoplastic material pellets or strands are formed by mixing anti-oxidation and anti-acidification ad-ditives with liquid thermoplastic material to form a mixture, ex-truding the mixture into spaghetti-like strands having a thickness of about .0625-.125 inches, cooling the strands, cutting the strands into discrete elements, and then plac-ing the discrete elements into an oil filter held in place to contact oil to gradually dissolve to release the additives.
Patent CA-2190905-A1 (CA)
Inventor: HOFFMAN MARK E
IPC: G01R21/133
Filed: 1996-11-21
Abstract: Line voltage and line current signals are sensed on a power line having at least one conducting path. The sensed line voltages and line currents are converted into a digital signal. A phase-to-neutral voltage signal and phase current signal are computed from the digital signal to thereby define a phase of the power line. An interval of orthogonality is determined from the sensed voltage and current signals, coinciding with passage of an integral number of cycles of a fundamental frequency reference signal which is computed from the computed phase-to-neutral voltage signal. A vector metering quantity is computed for the determined interval of orthogonality from the computed phase-to- neutral voltage signal and the computed phase current signal. The vector metering quantities to be computed may be identified and computed based upon an associated detent. The vector metering quantity is also computed based on an identified circuit topology.
Patent CA-2192722-A1 (CA)
Title: Polyethylene polymerization catalyst and process
Inventor: ARDUINI ANITA LORRAINE
IPC: C08F10/02
Filed: 1996-12-12
Abstract: A chromium ("Cr")-containing catalyst which is supported on a particulate metal oxide that has been treated with an alkyl aluminum is used to polymerize high density polyethylene having a comparatively low melt index. Alternatively, the subject catalyst may be efficiently employed at a comparatively high reaction temperature, especially in a gas phase polymerization process, to produce polyethylene having a conventional melt index.
Patent CA-2197445-A1 (CA)
Inventor: GOSSELINK EUGENE PAUL
IPC: C11D7/54
Filed: 1995-07-20
Abstract: Bleaching compositions, laundry and automatic dishwashing detergent compositions comprising multiple-substituted bleach activators which have at least one quaternary nitrogen atom, are provided. More specifically, the invention relates to compositions which provided enhanced cleaning/bleaching benefits through the selection of multiple-substituted quaternary bleach activators having specific leaving groups with a conjugate acid aqueous pK a above (13) and with the advantageous ratios of rate of perhydrolysis to rate of hydrolysis and of rate of perhydrolysis to rate od diacylperoxide production. Included are preferred activator compounds and methods for washing fabrics, hard surfaces, and tableware using the activators. A preferred multiple-substituted bleach activator has the formula:      Q(C(X)L)t wherein said multiple-substituted bleach activator is associated with charge-balancing compatible anions; Q is a moiety which comprises q tetravalent nitrogen atoms, wherein q is from about 1 to about 4, each of said tetravalent nitrogen atoms is separated from its nearest proximate --C(X)L group by a linkage of at least two carbon atoms, and provided that the atom in Q to which any --C(X)L is bonded is a carbon atom; X is O; t is 2 or 3; and L is selected from the group consisting of cyclic amidines with a ring size of from about 5 to about 12 atoms; lactams with a ring size of from about 6 to about 12 atoms; anilino derivatives; and mixtures thereof, and further provided that said multiple-substituted bleach activator has a ratio of: (i) k P/k H ~ 1 wherein k P is the rate constant for perhydrolysis of said bleach activator and k H is the rate constant for hydrolysis of said bleach activator; and has a ratio of (ii) k P/k D ~ 5 wherein k P is as defined in (i) and wherein k D is the rate constant for formation of a diacylperoxide from said bleach activator; and further provided that k H~10M-1s-1.
Patent CA-2197557-A1 (CA)
Title: Peroxide activation method and peroxide composition
Inventor: KOBAYASHI TSUNEO
IPC: C11D7/32
Filed: 1995-08-30
Abstract: Provided is a method of peroxide activation which comprises combining (1) an aqueous bleaching solution with hydrogen peroxide base, and (2) an aqueous solution containing as major components a sufficient amount of dicyandiamide for hydrogen peroxide activation, and an organic builder and/or inorganic builder, and maintaining the combined solution at alkaline pH. These solutions are stable for a long time when stored in separate containers. At need, the solutions are mixed together, and the mixture of this invention is effective for bleaching soil and for removing mold, applicable for cleaning, bleaching, sterilizing or deodorizing in either domestic or industrial use.
Patent CA-2198736-A1 (CA)
Title: Rotating boring tool
Inventor: OGURA NORIO
IPC: B23B51/00
Filed: 1995-10-25
Abstract: A rotating boring tool (10) comprises a cylindrical shank (11) and a body (12), both of which are coaxial with each other, said body being provided at its tip end with cutting blades (13a, 13b) which are in point symmetry with respect to an axis of the shank. Provided on the body are two flutes (14a, 14b) continuous from the cutting blades. The both flutes are made to approach each other at the lower half lead portions (designated hereinbelow as f1 portions) of terminal end portions f0 of the flutes and positioned about 35 degrees or more offset from the position of point symmetry. Alternatively, the both flutes are merged at the f1 portions. Accordingly, thickened portions y0 are formed on the f1 portions to increase rigidity of the f1 portions. As a result, it is possible to suppress generation of fatigue failure at the f1 portions whereby a rotating boring tool of long service life which is hard to break is obtained and a product cost and a cost for tool replacement are considerably reduced.
Patent CA-2200216-A1 (CA)
Inventor: HO CHIA-TIE
IPC: C09D133/00
Filed: 1995-10-03
Abstract: L'invention concerne des compositions réactives de polyuréthanne en deux parties, ainsi que les revêtements durcis préparés à partir desdites compositions. Elle concerne également des compositions particulières et des revêtements durcis obtenus à partir de ces compositions, qui présentent des caractéristiques optimisées d'amortissement, de résistance au rayage et de dureté, ainsi que d'autorégénération de la fissure. L'invention concerne également un nouveau prépolymère de polyuréthane utile dans quelques unes des compositions. Elle concerne enfin un procédé de préparation de certains revêtements à base des compositions décrites.
Patent CA-2203639-A1 (CA)
Title: Anti-hand-jittering dataform readers and methods
Inventor: WANG YNJIUN P
IPC: G06K7/10
Filed: 1996-09-12
Abstract: Dataform readers using two-dimensional sensor array cameras provide image frames comprising successive first (Fig. 2B) and second (Fig. 2C) fields of image data. In hand-held operation, hand jitter results in image offset (4b) causing registration errors between fields. Resolution and decoding performance are enhanced by described readers and methods.    Decoding is implemented first by use of image data of a first field (52) and the results of such decoding are supplemented by results of decoding of remaining portions of the dataform by use of second field image data (58).    Decoding may also be carried out by first determining the magnitude of a disparity vector (70) extending in the direction of image offset (46). The disparity vector is then used to provide enhanced decoding by use of first field image data and registration-corrected second field image data (72).
Patent CA-2206097-A1 (CA)
Title: Plastic housing designed to accommodate electronic and/or micromechanical components and into which conductor tracks pass
Inventor: KUEHNLE ANDREAS
IPC: B29C45/14
Filed: 1995-11-23
Abstract: The invention concerns a thermoplastic housing designed to hold electronic and/or micromechanical components and into which metal conductor tracks pass, the conductor tracks being injection moulded in one of the housing walls. The thermoplastic has a flexural strength of at least 200 MPa.