baber/WOPTO huggingface dataset:
Patent CA-2064993-A1 (CA)
Title: Non-porous collagen sheet for therapeutic use, and the method and apparatus for preparing it
Inventor: FURLAN DIEGO
IPC: A61L31/04
Filed: 1992-04-02
Abstract: Type I collagen gel with an H2O content not exceeding 20% by weight, in the form of a sheet of thickness between 0.02 and 2 mm, of compact transparent structure, with a capacity for absorbing aqueous biological liquids limited to a maximum of 15 times its weight, being free from native collagen degradation products, and suitable for the therapeutic treatment of wounds and burns.
Patent CA-2066617-A1 (CA)
Title: Vesicules lipidiques paucilamellaires a base de surfactants non phospholipidiques a chaine unique et a charges localisees
Inventor: WALLACH DONALD F H
IPC: C11D17/00
Filed: 1990-09-18
Abstract: On divulgue des vésicules lipidiques paucilamellaires constituées de surfactants anioniques ou zwittérioniques à chaîne unique non phospholipidiques et une méthode de fabrication de ces dernières. Les matières préférées pour former les vésicules sont les sarcosinamides à chaîne unique de 12-20 atomes de carbone et les bétaïnes à chaîne unique, dont l'utilisation écarte les problèmes liés à l'utilisation des phospholipides comme membranes artificielles, comme la dégradation par une grande variété d'enzymes, la peroxydation et le coût élevé. Les vésicules sont formées rapidement et peuvent être utilisées pour encapsuler des solutions aqueuses ou huileuses. Les vésicules peuvent être utilisées pour transporter un large spectre de molécules, comprenant les macromolécules et les médicaments, les vaccins, d'autres compositions thérapeutiques et des virus, pendant que certaines vésicules peuvent agir comme adjuvants ou dispositifs de transport ou de stockage de matières à base d'huile.
Patent CA-2067282-A1 (CA)
Title: Pesticidal 1-aryl-5-(substituted alkylideneimino)-pyrazoles
Inventor: HUANG JAMIN
IPC: C07D401/12
Filed: 1992-04-27
Abstract: ABSTRACT        The invention describes novel 1-aryl-5-(substituted alkylideneimino)pyrazoles of formula (I)     (I) wherein typically preferred substituents are: R1 is cyano, nitro, or halogen; R2 is R9S(O)n in which n is 0, 1 or 2 and R9 is alkyl, preferably methyl which is substituted by halogen atoms which are the same or different up to full substitution of the alkyl moiety; R3 is hydrogen or alkyl; R4 is phenyl or heteroaryl, optionally substituted by one or more hydroxy, halogen, alkoxy, alkylthio, cyano or alkyl or combinations thereof; preferably R4 is phenyl, which is at least substituted by 3-hydroxy or 4-hydroxy: R5 is hydrogen, alkyl or halogen; R6 and R8 are hydrogen: R7 is halogen, alkyl, haloalkyl or haloalkoxy; and X is a nitrogen atom or CR14 in which R14 is hydrogen, halogen, cyano, alkyl, alkylthio or alkoxy. The invention further: describes processes to make the compounds, compositions of the compounds, and methods of use of the compounds for the control of arthropods (mites, aphids or insects), nematodes, helminths, or protozoa.
Patent CA-2069272-A1 (CA)
Inventor: MORITA YOSHITSUGU
IPC: C08J3/215
Filed: 1992-05-22
Abstract: ABSTRACT           A novel silicone rubber particulate, wherein the silicone rubber particles are coated with metal oxide particles, is prepared.  The silicone rubber particulate so prepared has the advantage of reducing aggregation of the particulate mass.  The silicone rubber particulate has particular utility as an additive to organic resins for modifying the properties thereof.
Patent CA-2071227-A1 (CA)
Title: Apparatus and methods for joining transmission cables
Inventor: UZELAC MILAN
IPC: H01R4/56
Filed: 1992-06-15
Abstract: A device for joining sections of solid-dielectric underground cable comprises conductor extension pieces or ferrules respectively attached to the center conductors of each of the cable sections, conductor inserts installed in a cavity of each of the ferrules, and a conductor clamp for clamping the ferrules together in a predetermined longitudinal arrangement.      The conductor clamp comprises a pair of semi-cylindrical shell pieces which, when assembled together, form a modified cylindrical structure having a central aperture for receiving the ferrules. Each conductor insert includes a disk-shaped flange plate on its outer end. The central aperture includes a cavity having an enlarged inner diameter for receiving and constraining the disk-shaped flange plates of the conductor inserts. The shell pieces of the clamp are assembled in an opposed relationship to form a modified cylinder surrounding the ferrules and the conductor inserts. Fasteners are used to compress the shall pieces toward one another into secure engagement with the ferrules. The fasteners are removable, thereby allowing the clamp to be disassembled so that the joint may be easily disconnected when required. The shell pieces are tightly compressed against the ferrules so that the ferrules, and the center conductors to which they are attached, are retained in a desired predetermined mechanical relationship. Because the flange plates of the conductor inserts are larger than the central aperture of the assembled clamp, the flange plates are longitudinally constrained by the walls of the cavity. As a result, the assembly can withstand large forces in tension and compression which may be produced due to thermal expansion and contraction of the cable. In addition, the compression of the shell pieces against the ferrules causes the interior walls of the central aperture to bear tightly against the ferrules along a significant distance, thereby producing an electrical connection capable of carrying high currents between these parts.      Accordingly, an electrically conductive path is formed from the first cable center conductor through the first ferrule, the conductor clamp, and the second ferrule, to the second cable center conductor.
Patent CA-2073537-A1 (CA)
Title: Converting methanol to light olefins using small particles of elapo molecular sieve
Inventor: BARGER PAUL T
IPC: C07C11/02
Filed: 1992-07-09
Abstract: Methanol is converted to light olefins in a conversion process using a catalyst catalyst comprising a metal aluminophosphate molecular sieve having the empirical formula (EL x Al y P z)O2 where EL is a metal and x, y and z are mole fractions of El, Al and P respectively where preferred metals are silicon, magnesium and cobalt, with silicon especially preferred and where the metal aluminophosphate is composed of particles at least 50% of which have a particle size less than 1.0 µm and no more than 10% of the particles have a particle size greater than 2.0 µm. It is also preferred that the metal content (x) of the metal aluminophosphate be from about 0.005 and 0.05 mole fraction. The catalyst containing the small particles of the metal aluminophosphate is also part of the invention.
Patent CA-2076014-A1 (CA)
Title: Water distiller having element with temperature sensing and control elements
Inventor: GARRISON DALE L
IPC: C02F1/04
Filed: 1991-01-31
Abstract: A water distiller (15) has a steam chamber (26) that includes a tray (36) for containing water to be distilled. Water is conveyed from a source (20) to the tray (36) for distillation. A valve (37) operates in an open position to convey water to the tray (36) and a closed position to block the passage of water to the tray (36). A heating element means (34) extends in the steam chamber (26) for submersion in the water carried by the tray (36). The heating element (34) is operable within a range of temperatures to heat the water in the tray (36). The heating element (34) includes a main body portion having an axis that extends in a plane generally parallel to the water in the tray (36) and a section (50) having an axis that is deflected above the axis of the main body portion. A heat sink (48, 49) surrounds the deflected section (50) of the heating element means (34). A heat sensor (52) detects the temperature of the heat sink (48, 49). A control (21, 29) connects the valve (37) and the heat sensor means (52). The control (21, 29) closes the valve (37) when the sensed temperature of the heat sink (48, 49) is equal to or less than a predetermined amount.  The control (21, 29) opens the valve (37) when the sensed temperature of the heat sink (48, 49) is greater than the predetermined temperature.
Patent CA-2078779-A1 (CA)
Title: Construction site safety
Inventor: UNDERWOOD DANIEL C
IPC: E04G21/32
Filed: 1991-03-22
Abstract: A reinforcement bar end cap (15) comprising a hollow body which can be placed over the free end of an exposed reinforcing bar (12), the body having an impact member receiving means (17) so that an impact member (16) can be adjustably located in the receiving means adjacent the free end of the bar, in order for the impact member to take the brunt of impact from a falling person, so as to prevent impalement of a person on the bar.
Patent CA-2079176-A1 (CA)
Inventor: MONTREUIL CLIFFORD N
IPC: F01N3/10
Filed: 1992-09-25
Abstract: Abstract of the Disclosure A catalyst system for the selective reduction of gaseous NOx in the presence of excess oxygen, having a copper-containing ZSM5 zeolite to which a NOx-containing gas is exposed, and means for introducing a metered volume of finely dispersed, water soluble, oxygen-containing organic compound (alcohol, aldehyde, ketone, ether) into the NOx-containing gas prior to exposure to the Cu-ZSM5 zeolite.     Also, a method of treating automotive exhaust gas emissions, having an excess of oxygen, by the steps of: (a) introducing a water soluble, oxygenated organic compound (steam/oxygenate mixture) into the exhaust gas emissions as a reductant and at a location closely adjacent the source of the exhaust gas generation (in an appropriate amount with respect to the NOx); (b) substantially immediately exposing the reductant/emission mixture to a transition metal-exchanged high silica ZSM5 zeolite (SiO2/A12O3 of between 10-50) catalyst at a space velocity in the range of 20-80 K hr-l; and (c) sequentially exposing the effluent of such zeolite catalyst to an oxidation catalyst.
Patent CA-2079651-A1 (CA)
Inventor: GOSS DAVID
IPC: F16B35/06
Filed: 1992-10-01
Abstract: ABSTRACT OF THE DISCLOSURE        A stud (10) for ultrasonic insertion into a section (62) of plastic material generally comprises a shank (16) having a head portion (14) and an entering portion (12) on opposite ends thereof.  The head portion (14) is ultrasonically insertable into the section (62), and the entering portion (12) is insertable into an aperture in a workpiece.  The head portion (14) comprises a positive stop structure (24) for locating a level of insertion of the head portion (14) into the section (62) of plastic material.  A portion (32) which provides pull out resistance is disposed on the head portion (14) above the positive stop structure (24), and a portion (26) which provides torsional resistance is disposed on the head portion (14) between the positive stop structure (24) and the portion (32) for providing pull out resistance. A head body portion (36) is located on the head portion (14) above the portion 32 for providing pull out resistance. A unique method is also provided for ultrasonically inserting the stud (10) into the section (62) of plastic material.
Patent CA-2080732-A1 (CA)
Title: Inorganic filtration membranes with separation layer made of materially oxygen-free ceramics
Inventor: DURAND JEAN
IPC: C04B41/87
Filed: 1992-10-16
Abstract: Inorganic filtration membrane comprising a porous support A in contact with a ceramic separating layer B substantially free from oxygen and made from a combination of at least two elements chosen from silicon, boron, aluminium, titanium, tungsten, phosphorus, zirconium, nitrogen and carbon, and deposited by the vapour-phase chemical deposition (CVD) process or by the plasma-assisted vapour-phase chemical deposition (PECVD) process. The membranes according to the invention can be employed more particularly in microfiltration, ultrafiltration and tangential nanofiltration.
Patent CA-2080841-A1 (CA)
Title: Crystalline cellulose production
Inventor: BRAUNSTEIN EDIT L
IPC: C08B15/02
Filed: 1992-02-21
Abstract: The present invention relates to new methods for producing cellulose with high crystallinity by enzymatic hydrolysis and to novel cellulosic materials produced by those methods which exhibit a wide variety of DP's. The method is especially useful in producing microcrystalline celluloses.
Patent CA-2083388-A1 (CA)
Inventor: PIRKLE WILLIAM H
IPC: B01D61/24
Filed: 1991-05-23
Abstract: The invention relates to a process for the high yield, cost efficient means of separating enantiomers. The process utilizes a supported liquid membrane and a chiral carrier which selectively complexes with one of the two enantiomeric optical configurations (Fig. 1). The invention is also directed to an apparatus adaptable to the continuous and staged separation of enantiomers (Figs. 4 and 11). In one embodiment, the apparatus utilizes a semi-permeable barrier and source and receiving locations each of which may be kept at temperatures which facilitate the complexation and dissociation processes (Figs. 4 and 11).
Patent CA-2086902-A1 (CA)
Title: Bin unloading apparatus
Inventor: MUTH GORDON E
IPC: B65G65/46
Filed: 1993-01-07
Abstract: ABSTRACT OF THE DISCLOSURE A bin unloading apparatus includes a housing attachable to a bin  floor.   The housing has an interior  cavity,  a rotatable  lower  portion  with  an  intake  opening,  and  a stationary upper portion with an output opening. A sweep auger is secured to the rotatable lower portion of the housing.  The sweep auger has a first end extending through the intake opening and a second end.  The rotatable portion of the housing rotates as the sweep auger moves radially about the housing. A discharge auger trough is secured to the stationary upper portion of the housing.  A discharge auger is disposed in the discharge auger trough.  The discharge auger has a first end extending through the output opening and a second end.  As the sweep auger moves radially around the housing material is moved by the sweep auger through the intake opening into the interior cavity of the housing.  A vertical lift auger is disposed in the interior cavity of the housing having a lower end and an upper end.  The lower end is connected through a first gear box with the first end of the sweep auger.   The upper end is connected through a second gear box with the first end of the discharge auger.  Drive means disposed exterior of the bin is secured to the second end of the discharge auger to rotate the discharge auger, the vertical lift auger, and the sweep auger.
Patent CA-2089590-A1 (CA)
Inventor: BAUMANN HANS-PETER
IPC: C09K23/46
Filed: 1993-02-16
Abstract: - 26 - Case 150-5603 Abstract of the Disclosure Mixture (G) of different oxyalkylated and optionally further reacted amines (E) and (F) as described in the specification are suitable as low-foaming assistants, in particular levelling agents, especially in combination with silicone-free low-foaming compounds or defoamers, especially for the dyeing of natural or synthetic polyamides. 6300/XD/RB
Patent CA-2091539-A1 (CA)
Title: Video compression/decompression processing and processors
Inventor: FANDRIANTO JAN
IPC: H04N19/625
Filed: 1993-03-11
Abstract: VISION PROCESSOR                     Jan Fandrianto Chi Shin Wang Sehat Sutardja Hedley K. J. Rainnie Bryan R. Martin ABSTRACT   A vision processor includes a control section, a motion estimation section, and a discrete cosine transform ("DCT") section.    The  motion  estimation  section  includes  two memories, an image memory with two read ports and a write port, and a search memory with two read ports and a write port.  The DCT section includes a DCT memory configurable as a two read, two write port memory and as a four read, four write  port  memory.    The  ports  of  these  memories  are selectively  applied  to  various  elements  in  the motion estimation  path  and  the  DCT path.    In  motion  vector searching,  the  ALU  performs  averaging  and  difference operations on pixels in the frame and search memories.  Data from the search memory is shifted for certain operations, before arithmetic operations in the ALU are performed.  In DCT operations, transposition is done on word data read from the DCT memory in a shifter/transposer, which is shared with the motion estimation section, and the results written back to the DCT memory through the ALU operating in pass through mode.    Multiply-accumulate  operations  are  done  in  a multiplier-accumulator, which reads and writes-back to the DCT memory.   Data transfers from the frame and search memories to the DCT memory may be performed in parallel with multiply-accumulate operations.
Patent CA-2091775-A1 (CA)
Inventor: ALLIBERT PATRICE A
IPC: C12Q1/6881
Filed: 1992-07-17
Abstract: A set of nucleotide probes for determining HLA DR types and/or related types by means of commonly used typing techniques using oligonucleotides, wherein said set of probes includes at least the following nucleotide probes (the underligned portion represents the optimal sequence) (I). Said probes may be labelled, covalently coupled to a ligand which facilitates their attachment to a solid support, or attached to a solid support. The use of the probes in a HLA DR typing method, e.g. as capture probes according to the sandwich technique, is also described.
Patent CA-2098581-A1 (CA)
Title: Drill bit
Inventor: HEDLUND JAN-GUNNAR
IPC: E21B10/56
Filed: 1991-12-06
Abstract: The present invention relates to a drill bit (10) for rock drilling, pref-erably a down-the-hole drill bit, said drill bit (10) including a head (11) and a shaft (12), said head (11) defining a cutting face (14) that carries a num-ber of hard material button inserts (l5) having end portions extending out-wardly of said cutting face (14), means (16, 17) for transporting flushing medium from the free end (13) of the shaft (12) to the cutting face (14) of the head (11), said means for transporting flushing medium including a central passage (16) extending from the free end (13) of the shaft (12) and terminating in the head (11) short of the cutting face (14) and at least one branch passage (17) emanating from the central passage (16) and emerging in the cutting face (14). In the filed of down-the-hole drill bits big volumes of flushing medium, normally compressed air, are used since the flushing medium is also activating the down-the-hole hammer. Those big volumes provide erosion of the cutting face since the flushing medium has a very high speed when passing the front face of the drill bit. Said erosion creates problems when so much material, usually steel, of the cutting face has been eroded away that the button inserts are lost before they are worn out. The idea of the present invention is to decrease the velocity of the flushing me-dium before reaching the cutting face (14) of the drill bit (10). This is done by increasing the cross-sectional area of the branch passage (17) along a certain length (L) of said branch passage (17).
Patent CA-2100858-A1 (CA)
Title: Appareil et methode d'enregistrement et de retransmission sur demande de signaux video
Inventor: BRADLEY GRAHAM C
IPC: H04N7/20
Filed: 1992-02-07
Abstract: L'invention porte sur un système de diffusion en deux étapes de signaux de télévision dans le cadre duquel la première étape de diffusion s'effectue par satellite. Le système comporte un centre de gestion de la diffusion pour la production d'un signal de télévision comportant des informations de gestion de système dans les intervalles de suppression de trame. Le signal est acheminé vers au moins une station de réception par un premier réseau de transmission. Chaque station de réception dispose de moyens de mémorisation des signaux de télévision reçus pilotés par le système de gestion des informations contenues dans le signal de télévision. Le système prévoit en outre un deuxième réseau de transmission, présentant une capacité multicanaux, pour la transmission des signaux de chaque station de réception vers une multiplicité de terminaisons (les téléspectateurs), les signaux acheminés par ce deuxième réseau étant les signaux précédemment mémorisés par la station de réception et éventuellement des signaux véhiculés sur le premier réseau.
Patent CA-2101069-A1 (CA)
Title: Heat transfer device
Inventor: SALT HARRY
IPC: A62B17/00
Filed: 1992-01-31
Abstract: A heat transfer device (20) which comprises a collapsible envelope (2) including a liquid transfer (7) which, in use, is in an expanded form and includes a liquid (8) that evaporates from one wall (6) of the envelope and condenses on another wail (5), the condensed liquid being returned via the liquid transfer means (7) to the wall (6) at which evaporation took place.
Patent CA-2101822-A1 (CA)
Inventor: SHOWALTER MICHAEL S
IPC: B23K7/06
Filed: 1993-08-03
Abstract: A block assembly for a thermochemical scarfing apparatus which allows a greater diagonal standoff distance from the metal workpiece during preheating.  The block assembly comprises a base member and an extension releasably joined to the base member, and the base member and extension include an internal network of gas distribution lines for separately delivering both oxygen and fuel gas to each of a plurality of discharge openings which are disposed in a longitudinal row along the front face of the extension. A nozzle insert is releasably mounted in each discharge opening, such that during preheating, the oxygen may be discharged from each discharge opening as a central high velocity stream and the fuel gas may be discharged as a concentric stream which coaxially surrounds the central stream, and so that the momentum of the central stream is maintained.  The effective flame heating distance thereby may be extended during preheating, and the block assembly may be moved back from the workpiece a significant standoff distance so as to avoid damage from dislodged molten metal slag.
Patent CA-2101904-A1 (CA)
Title: Chair
Inventor: DAUPHIN FRIEDRICH WILHELM
IPC: A47C1/032
Filed: 1993-08-04
Abstract: ABSTRACT OF THE DISCLOSURE            Chair, in particular office chair, with a pedestal, with a seat supportsupported on the pedestal by means of a chair column, which seat support comprises a front and a rear seat support element interconnected via a pivot axis, with a seat supported on the seat support elements, with a backrest secured to the rear seat support element and with a longitudinally adjustable energy storing device articulated to the seat support elements at a distance from their pivot axis for mutually adjusting the backrest and the seat, a seat support element being provided with a receptacle for the upper end of the chair column. The receptacleis articulated on the seat support element via an articulated axis arranged parallel to the pivot axis of the front and the rear seat support element. The seat support element is provided with a locking device effective between the seat support element and the receptacle for the purpose of locking or releasing, respectively, different inclinations of the seat support in relation to the chair column.
Patent CA-2102568-A1 (CA)
Title: Strong discontinuous polyethylene fibres
Inventor: CLOUTIER SYLVIE
IPC: D01F6/30
Filed: 1993-11-05
Abstract: Strong discontinuous fibres formed from polyethylene are disclosed. The fibres have a length of 1-25 mm, a fibre diameter of less than 30 microns and a handsheet zero span strength of greater than 3 kg/15 mm. The fibres may be in the form of a polyethylene pulp having a surface area of at least 4 m2/g, a Pulmac defect value of less than 3% and a handsheet zero span value of at least 3 kg/15 mm. Polyethylene sheet may be formed from the strong discontinuous fibres. The fibres and sheet may be used in blends with cellulose fibres, fillers, thixotropic agents and as synthetic paper.