baber/WOPTO huggingface dataset:
Patent CA-2030001-A1 (CA)
Title: Chloroacetamide derivatives and processes for the production of the same and the use thereof
Inventor: HASHIMOTO ISAO
IPC: A01N41/02
Filed: 1990-11-14
Abstract: ABSTRACT :    A chloroacetamide derivative, useful as a herbicide, of the formula [I],   ... (I) wherein n represents 0,  1 or 2, R is hydrogen, loweralkyl, lower-haloalkyl, cycloalkylmethyl, benzyl, substituted benzyl, loweralkoxy-alkyl, tetrahydrofurfuryl, loweralkoxycarbonylmethyl, or lowerdialkyl-aminoethyl, and X and Y are the same or different and are hydrogen, halogen, loweralkyl, loweralkoxyl, trifluoromethyl or nitro, provided that when n = O and one of X and Y is p-nitro and the other is hydrogen, then R is not hydrogen, and processes for preparing the same.
Patent CA-2030564-A1 (CA)
Inventor: EATON MICHAEL A W
IPC: C07D498/04
Filed: 1990-04-05
Abstract: A drug delivery system is described in which an immunoconjugate and a prodrug are used in association with each other to deliver a drug to a host target site such as a tumour. The immunoconjugate comprises an antibody or antibody fragment to which is attached a .beta.-lactamase or an active fragment thereof. The prodrug is a cyclic amide derivative of a drug or an unstable precursor thereof in which the drug or precursor is attached to the remainder of the prodrug such that it forms a leaving group which on hydrolysis of the prodrug is eliminated as the active drug or unstable precursor. Particular prodrugs include penicillin or cephalosporin derivatives and other .beta.-lactams to which are attached any physiologically active substances, particularly antineoplastic agents, antiviral, antibacterial or antifungal compounds. In use the immunoconjugate is administered first such that it localises at the host target site. Subsequent administration of the prodrug results in .beta.-lactamase catalysed hydrolysis of the prodrug at the target site with release of the active drug or unstable precursor.
Patent CA-2031903-A1 (CA)
Inventor: LUKCO D
IPC: C22C49/14
Filed: 1990-12-10
Abstract: ABSTRACT The subject invention relates to a coated reinforcement material comprising a SiC reinforcement having a coating of at least three layers, wherein the layers are alternately A-material layers of the general formula:                   AlxOyNz wherein x is up to about 60 atomic% of the coating;         y is from about 20 atomic% to about 55 atomic% of the coating; and z is from about 5 atomic% to about 45 atomic% of the coating, with the proviso that x+y+z=100, and B-material layers comprising a metal alloy, such that the first and last layers of the coating are A-material layers.          The invention further relates to a high stength, high temperature performance composite containing the above-specified coated reinforcement. AI4/Applns
Patent CA-2031983-A1 (CA)
Title: Purification of 1,1-dichloro-1-fluoroethane
Inventor: TUNG HSUEH S
IPC: C07C17/389
Filed: 1990-12-11
Abstract: ABSTRACT          PURIFICATION OF 1,1-DICHLORO-1 FLUOROETHANE        The present invention provides a process for the purification of 1,1-dichloro-1-fluoroethane comprising the steps of:  (a) reacting anhydcous hydrogen fluoride with 1,1,1-trichloroethane or vinylidene chloride containing dichloroacetylene to form 1,1-dichloco-1-fluoroethane; and (b) passing the 1,1-dichloro-1-fluoroethane through activated carbon to substantially remove unsaturated impurities.  In particular, the present process reduces the amounts of dichloroacetylene and vinylidene chloride in the 1,1-dichloro-1-fluoroethane product so as to meet the current specifications set forth by the Panel for Advancement of Fluorocarbon Test.        The purified 1,1-dichloro-1-fluoroethane product is useful as a blowing agent and a solvent.   6533k
Patent CA-2032402-A1 (CA)
Title: Magnetoelastic force transducer
Inventor: GUSTAFSSON PAR
IPC: G01L1/12
Filed: 1990-12-17
Abstract: ABSTRACT            A magnetoelastic force transducer according to the invention comprises two closed magnetic circuits.  The transducer is constructed in such a way that the reluctance in one of the magnetic circuits (2, 3, 5, 6, 12, 13) will be changed when the transducer is subjected to a force as a result of changes in the magnetic permeability caused by magnetostriction.  The second magnetic circuit (3, 4, 5, 7, 11, 14) is formed so as to have an essentially unchanged reluctance when the transdu-cer is loaded and is used to compensate for those changes in the permeability of the material arising for reasons other than magnetostriction.  (Figure 1)
Patent CA-2033916-A1 (CA)
Title: Apparatus with adjustable width trays for automatic packaging machines
Inventor: TISMA STEVAN
IPC: B65B35/20
Filed: 1991-01-10
Abstract: A tray-like mandrel for an automatic packaging machine has a telescoping bottom so that it may be made wide in order to receive a product or narrow in order to fit into a box.          The telescoping is controlled by a slot track cam extending along a path followed by the mandrel.  A cam follower riding in the slot track adjusts the tray width.
Patent CA-2037460-A1 (CA)
Title: Coin wrapping device
Inventor: AUSTIN IAN K
IPC: B65B67/08
Filed: 1991-03-04
Abstract: ABSTRACT       A coin wrapping device is disclosed comprising a straight, U-shaped trough closed at one end which facilitates the placing of an exact number of coins into a standard tubu-lar paper wrapper. This invention is the simplest device which enables easy handling of the coins and which eliminates the necessity of counting the coins before wrapping them. It is designed to be used by anyone needing an efficient means to roll a moderate amount of coins.
Patent CA-2039700-A1 (CA)
Title: Apparatus for reproducing recorded data and selectively either of read-only or recorded synchronization information from a magneto-optical recording medium
Inventor: YAMAGAMI TAMOTSU
IPC: G11B20/12
Filed: 1990-08-22
Abstract: In an optical recording medium on which the main information is recorded on a pre-formed recording track along the track direction and in which the recorded data are read out by optical means, frame sync signals based on the same format as the format for the main information are pre-recorded by offsetting the recording track itself along its width for each frame as an information recording unit, for facilitating frame synchronization and simplifying the construction through the of a sole common synchronizing circuit. The information pre-recorded by offsetting the track itself along its width includes not only the frame sync signals but also any reproduce-only information for increasing the disc recording capacity. The reproducing circuit for reproducing the frame sync signals of the main information recorded along the track direction of the recording track, and the reproducing circuit for reproducing the frame sync signals having the same format as the main information among the information recorded by offsetting the track along its width, are formed as a common circuit for simplifying the circuit construction.
Patent CA-2041451-A1 (CA)
Title: Neon sign connector
Inventor: TRAME CHARLES E
IPC: F21V23/06
Filed: 1991-04-29
Abstract: Abstract of the Disclosure A connector is provided for the conductors running between the electrode-containing ends of a neon tube and the high voltage power supply.   Two half-shells composed of rigid insulating plastic are joined together to form a housing after the electrical connection is made between a power supply lead wire and  the  neon  tube  to  completely  enclose  the connection.  At least one end of the housing resulting from   combining   the   half-shells   contains   a substantially  round  hole  and  a  circular  groove inwardly thereof.  An insulating feedthrough adapter has  an  integral  collar which  is  captured  in the groove.   A spirally grooved or corrugated flexible insulating  sleeve  screws  onto  the  adapter  which results in the lead wire being double insulated.  One of the end portions of the neon tube fits through a hole in the insulating housing opposite of the hole in which the adapter resides.
Patent CA-2042682-A1 (CA)
Title: Over-current detector circuit for an enhanced subscriber line interface
Inventor: PAWLOWSKI CHRIS
IPC: H04M3/18
Filed: 1991-05-15
Abstract: An over-current detector circuit used in a Subscriber Line Interface Circuit (SLIC) for validating an over-current condition on a subscriber loop comprising a first counter connected to the SLIC disposed to receive an oversense signal from the SLIC.  The first counter begins counting when the oversense signal is received and produces an output signal when the oversense signal is still active after the counter finishes, denoting a dc over-current in the subscriber loop.  A timer circuit connected to the SLIC also receives the oversense signal. The timer is arranged to begin counting when the oversense signal is received.  A second counter further receives the oversense signal and is advanced by one count on the high to low transition of the oversense signal. The second counter produces an output signal when three counter advances are produced before the timer times out, denoting an ac over-current condition.  A register circuit connected to the first counter and to the second counter is arranged to receive the first counter output signal or the second counter output signal and transmit to a logic interface an over-current signal advising a central controller that an over-current condition exists on the subscriber loop.  Finally, a cut clear pulse generator connected to the register circuit and to a cut relay is also arranged to receive the over-current signal from the register circuit and produce an output pulse that enables the cut relay.  The cut relay then electrically breaks the subscriber loop, isolating the SLIC from the subscriber loop.
Patent CA-2043067-A1 (CA)
Title: Coal hydroconversion process
Inventor: CULROSS CLAUDE C
IPC: C10G1/06
Filed: 1991-05-23
Abstract: ABSTRACT OF THE DISCLOSURE           An improved  process for the hydroconversion of coal  comprising  pretreating  coal  in  an  aqueous carbon  monoxide-containing  environment,  followed  by extracting a  soluble  hydrocarbon  material  from  the coal, and  subsequently  hydroconverting  the extracted material in a  hydroconversion reactor.   The extracted material consists of  a relatively  hydrogen-rich mate-rial which  is  readily  converted  to  valuable liquid products in high  yield.  The residue  from the extrac-tion stage is relatively  hydrogen  deficient material which can be  gasified to  produce hydrogen  and carbon monoxide  for  the   hydroconversion  and  pretreatment stages, respectively.
Patent CA-2043075-A1 (CA)
Title: Dicyclopentadiene activation method and polymerization composition
Inventor: OKUMURA KIN-ICHI
IPC: C07C13/61
Filed: 1991-05-23
Abstract: A highly polymerizable dicyclopentadiene (DCPD) monomer composition is obtained. The dicyclopentadiene so obtained is highly suitable for ring-opening polymerization by metathesis catalysts. The active DCPD yields articles with excellent physical properties upon in-mold polymerization.
Patent CA-2043395-A1 (CA)
Inventor: KIM IN J
IPC: G11B23/087
Filed: 1991-05-28
Abstract: ABSTRACT OF THE DISCLOSURE       A tape reel comprising an upper flange and a lower flange having a hub body, the hub body comprising an inner hub, a middle hub and an outer hub, the three hubs arranged vertically and spaced apart from one another and each having a predetermined thinness capable of securing a smooth flow and balanced density distribution or materials during injection molding procedure, two vertical spaces, a vertical inner space provided between the inner and middle hubs and a vertical outer space between the middle and outer hubs, and providing a predetermined thickness in combination with the three hubs for the hub body, and a plurality of inner and outer ribs, the Inner ribs spaced apart from one another and provided between the inner and middle hubs and the outer ribs spaced apart from one another and between the middle and outer hubs, and the inner and outer ribs extending top portion of the hub body to lower portion of the hub body and adapted for connecting the hubs, respectively. The present invention provides advantages of making the tape wound around the hub be finely prevented from being damaged and also improving the productivity because of preventing the tape reel from being poorly manufactured .
Patent CA-2049361-A1 (CA)
Title: Oligodeoxynucleotides with 5'-linked chemical groups, method of product thereof and use thereof
Inventor: COHEN JACK S
IPC: C07H21/00
Filed: 1990-03-23
Abstract: Method of synthesis is provided for novel oligodeoxynucleotides 5' linked to covalently attached chemical groups via intermediate linked phosphoramidites. The synthesis of the covalently attached chemical group to a phosphoramidite moiety occurs outside the automatic synthesizer, followed by application of this complex as a terminator of the 5' end of a phosphate-modified oligodeoxynucleotide in the automatic synthesizer. The compounds are used to attenuate or destroy mammalian gene expression or viral activity.
Patent CA-2054459-A1 (CA)
Title: Apparatus for increasing the number of registers available in a computer processor
Inventor: CMELIK ROBERT
IPC: G06F9/302
Filed: 1991-10-29
Abstract: A floating point processor including a first plurality of registers, each of the registers of the first plurality of registers containing a number of bit positions at least sufficient to store one single precision number, the registers of the first plurality of registers being addressable in storing single precision numbers by sequentially numbered addresses and being addressable in storing double precision numbers by alternate ones of the sequential numbers used in storing single precision numbers; and a second plurality of registers, each of the registers of the second plurality of registers containing a number of bit positions at least sufficient to store one single precision number, the registers of the second plurality of registers being addressable in pairs in storing double precision numbers by those alternate ones of the sequential numbers used in storing single precision numbers omitted in addressing the registers of the first plurality of registers.
Patent CA-2055150-A1 (CA)
Inventor: SONNEWALD UWE
IPC: C12N15/55
Filed: 1991-11-07
Abstract: Abstract Plasmids that comprise a DNA sequence coding for a protein that modifies the metabolism of soluble sugars, for example, an inorganic pyro-phosphatase agent and plant cells comprising those plasmids, for the production of transgenic plants that are modified in habit and yield are described, the plants being modified in habit by the transfer and the expression of genes that intervene in sugar metabolism or sugar distribution inside a plant.
Patent CA-2056586-A1 (CA)
Inventor: ERICKSON DAVID J
IPC: G10K9/12
Filed: 1991-11-28
Abstract: A transducer includes an acoustic radiating member for generating acoustic energy in a transmitting medium and a driver member that is pivotally connected to the radiating member. The driver member is for urging movement of the radiating member, wherein such movement generates the energy. Pivoting of the driver member with respect to the radiating member relieves predetermined stress in the driver member. The radiating member may include, for example, a flat element such as a bar, plate or disk, or an I-shaped element. The driver element may include an electroactive material. The driver element may be connected to the radiating element by support apparatus that is fixedly coupled to the radiating element includes a screw having a predeterminedly contoured end that engages a complimentarily contoured recess connected to the driver element for permitting the pivoting. When the support apparatus includes a screw it may be adjusted for supplying a predetermined force on the driver element.
Patent CA-2061331-A1 (CA)
Inventor: KOZLOVSKY WILLIAM J
IPC: H01S5/0687
Filed: 1992-02-17
Abstract: A laser diode produces a laser beam having a carrier frequency component and a sideband frequency component. An  optical  resonator  receives  the  laser  beam  and substantially couples the carrier frequency component and substantially rejects the sideband frequency component. An  electronic  locking  system  receives  the  rejected sideband frequency component and adjusts the laser diode to lock the carrier frequency component to the resonator frequency.   A laser control controls the allocation of power between the  carrier  frequency  and  the  sideband frequency component such that the resonator output may be controlled and pulsed.
Patent CA-2064579-A1 (CA)
Title: Linear polyphosphazenes and a process for their production
Inventor: MONTAGUE ROBERT A
IPC: C08G79/02
Filed: 1991-06-04
Abstract: Polyphosphazenes are produced by polymerizing a silylated phosphinimine in the presence of an initiator, preferably an anionic initiator at temperatures below those typically necessary for such polymerization reactions. The polyphosphazenes obtained are suitable for use in the production of elastomeric and thermoplastic materials.
Patent CA-2066007-A1 (CA)
Title: Adhesion of gelatin and emulsion coatings to polyester film
Inventor: STROBEL MARK A
IPC: C08J7/04
Filed: 1992-04-14
Abstract: ABSTRACT OF THE DISCLOSURE       A polymeric film substrate is first modified, then coated with a polyalkyl acrylate/gelatin layer to improve the wet adhesion of the layer to the substrate. The layer may itself contain a photographic emulsion or emulsion layers may be adhered to that layer. 45481-3A.CAN
Patent CA-2066941-A1 (CA)
Title: Air bag
Inventor: MORITA KAZUO
IPC: B60R21/231
Filed: 1992-04-23
Abstract: ABSTRACT OF THE DISCLOSURE     In an air bag having a gas introducing opening for gas from an inflator, a synthetic resin molded member is provided on each face of a marginal portion of the gas introducing opening, and the synthetic resin molded members are coupled to each other.  One of the synthetic resin molded members is formed with protrusions, and the other synthetic resin member has engaging holes corresponding to the protrusions.  The protrusions are inserted in the engaging holes through holes formed through a cloth portion of the air bag, and welded to the engaging holes.
Patent CA-2069380-A1 (CA)
Title: Method for removing permanent gases and light hydrocarbons from waste and process gas streams and petrochemical processes
Inventor: SHIRLEY ARTHUR I
IPC: B01D53/04
Filed: 1992-05-25
Abstract: 0092G                                            Dkt. No. 91A251 ABSTRACT OF THE DISCLOSURE     High boiling point gases, i.e. those having boiling points greater than above -80°C, are separated from a gaseous mixture containing,  in addition to the  high  boiling  gases,  methane and/or a C2 hydrocarbon and one or more gases having boiling points less than -170°C by subjecting the gaseous mixture to adsorptive  separation.   If  the gaseous mixture contains more than  one high  boiling  component,  these  components  may  be further separated by fractional distillation.
Patent CA-2070874-A1 (CA)
Inventor: JEANDEAU SERGE
IPC: G02B26/10
Filed: 1992-06-09
Abstract: - Procédé et dispositif de balayage pour un dispositif de prise de vue opto-électronique à grand champ et à haute résolution. - L'invention est caractérisée en ce que ~ pour chaque valeur donnée à l'angle du déflecteur (4) autour d'un premier axe de rotation (6), on calcule le carré de la valeur dudit angle du déflecteur autour dudit premier axe de rotation (6) ; ~ 1on ajoute, à la valeur de l'angle du déflecteur (4) relatif à sa rotation autour d'un second axe de rotation (7), une correction sous forme d'une quantité proportionnelle audit carré de la valeur de l'angle du déflecteur (4) relatif à sa rotation autour du premier axe de rotation (6), pour obtenir une valeur corrigée d'angle du déflecteur (4), relativement au second axe de rotation (7) ; et ~ on positionne ledit déflecteur (4) selon ladite valeur corrigée d'angle du déflecteur (4), relativement au second axe de rotation (7).
Patent CA-2073069-A1 (CA)
Title: Portable traction apparatus
Inventor: CHITWOOD RALPH M
IPC: A61H1/02
Filed: 1990-11-02
Abstract: A portable traction apparatus (10) including a table (12) to which is mounted a traction exerting mechanism (70) which includes an extension linkage assembly (72) fixed to the table (12) comprised of articulated pivotally interconnected links (121-129). An elongate upper end member (60) extends outwardly from the linkage assembly (72) and the head end (35) of the table (12), and an elongate lower end member (64) extends outwardly from the linkage assembly (72) and the foot end (36) of the table (12), and arm engaging means (72, 74, 82 and 84), and movable from and to a non-traction exerting position toward the head end (35) of the table (12) and a second, traction exerting position toward the foot end (36) of the table (12) where the extension linkage assembly (72) is extended by the movement of the lever arms (72) and (74) so as to extend elongate end members (60) and (64) to which body engaging means (42) and (54) can be releasably attached for applying traction to a user/patient lying on the table (12).
Patent CA-2073453-A1 (CA)
Title: Methods of enhancing wound healing and tissue repair
Inventor: BOCKMAN RICHARD
IPC: A61K33/24
Filed: 1990-11-13
Abstract: Skin, connective and support tissue repair is enhanced and augmented by administering pharmaceutically acceptable galli-um-containing compounds in amounts sufficient to provide therapeutic levels of elemental gallium. Gallium-containing com-pounds mimic the effects of endogenous growth factors to induce cells within these tissues to produce new matrix by increasing the formation of critical structural matrix proteins responsible for skin, support and connective tissue repair, maintenance and augmentation. Gallium-containing coumpounds are suitable for a variety of applications in wound healing, including dermato-logic and cosmetic skin repair, bone fracture repair and successful bonding of implanted tissue grafts and connective and support tissue prostheses. The unique ability of the gallium-containing compounds to increase new matrix component formation and fa-vorably alter the proliferation of specific cell types needed for tissue repair is separate and distinct from gallium's inhibitory ae-tivity on matrix-resorbing cells such as bone-resorbing osteoclasts.
Patent CA-2073826-A1 (CA)
Title: Field effect transistor and method for manufacturing the same
Inventor: KUWATA NOBUHIRO
IPC: H01L29/10
Filed: 1992-07-14
Abstract: Abstract of the Disclosure A field effect transistor has a gate electrode 15, a source electrode and a drain electrode 15 formed on a GaInAs/GaAs quantum well layer comprising a stock of an undoped GaAs layer, an impurity doped GaInAs layer 3 and an undoped GaAs cap layer, has low resistivity regions 11 formed by ion-implantation in a source regions and the drain regions of the GaInAs/GaAs quantum well layer, has  the impurity doped GaInAs layer as a channel, and has a thickness of the undoped GaAs cap layer of 30-50nm.  An annealing temperature for activating the low resistivity region 11 is no higher than a temperature at which the GaInAs/GaAs quantum well is not substantially broken and no lower than a temperature at which a sheet resistivity of the low resistivity region 11 is sufficiently reduced.  The FET thus manufactured has desired functions of the GaInAs/GaAs quantum well and the low resistivity region 11 and attains a low noise and high speed operation.