baber/WOPTO huggingface dataset:
Patent CA-2117220-A1 (CA)
Title: Method and instruments for performing arthroscopic spinal surgery
Inventor: SHAPIRO DAVID E
IPC: A61B17/34
Filed: 1994-03-08
Abstract: ABSTRACT              METHODS AND INSTRUMENTS FOR PERFORMING      ARTHROSCOPIC SPINAL SURGERY      A method and apparatus for performing an arthroscopic spinal laminectomy or similar surgical procedure includes a plurality of cannulas which are individually inserted, in a predetermined sequence, into predetermined areas of a patient's spinal column. The first inserted cannula has a tissue manipulating surface thereon which is used to create a working space adjacent a predetermined area of the patient's spinal column. A viewing device is inserted through this cannula and the fluid used in association therewith is used to maintain the working space. The second and third cannulas are larger in size and are working cannulas in that they provide passageways for instruments used in the surgical procedure. The second and third cannulas are utilised by the surgeon to sequentially remove a portion of the ligaments flavum necessary to expose the desired area of the patient's spinal bone and, if necessary, to remove any portion of bone necessary to expose the nerve and disc area. The nerves are then moved and the sequestered portion of the disc is removed, all utilising the cannulas as passageways to perform the surgical procedure. In addition to a cannula which has a tissue manipulating surface thereon, the invention includes a rongeur having a cross section shaped to pass through a cannula and with a suction connection therefor so that whatever body tissue and/or bone fragments are cut by the rongeur may be removed by suction through the passageways created by the cannula.
Patent CA-2120304-A1 (CA)
Title: Biocompatible monomer and polymer compositions
Inventor: LEUNG JEFFREY C
IPC: C09J4/00
Filed: 1994-03-30
Abstract: ABSTRACT OF THE DISCLOSURE A biocompatible monomer composition contains (A) at least one monomer of the formula: CHR=CXY wherein  X  and  Y  are  each  strong  electron withdrawing groups,  and R is H or, provided that X and Y are both cyano groups,  a C1-C4 alkyl group; and  (B)  an effective amount of at least one biocompatible agent effective to reduce   active   formaldehyde   concentration   levels, preferably a formaldehyde scavenger compound. The monomer is preferably an alpha-cyanoacrylate.   The formaldehyde scavenger compound may be in microencapsulated or non-microencapsulated form. The composition can be applied to a variety of materials and is particularly suitable as in vivo tissue adhesive.   A method of joining together  n vivo  two  surfaces,  e.g.,  body  tissues,  includes  (a) applying to at least one of the surfaces a composition containing 1) at least one monomer, preferably an alpha-cyanoacrylate, which forms a polymer whose ln vlvo biodeg-radation produces formaldehyde; and 2) an effective amount of at least one biocompatible agent effective to reduce active  formaldehyde  concentration  levels,  preferably a formaldehyde scavenger; and (b) maintaining the surfaces in contact until the composition polymerizes.
Patent CA-2122022-A1 (CA)
Inventor: ALHAMAD SHAIKH G M Y
IPC: C07D513/04
Filed: 1992-10-23
Abstract: 2122022 9308361 PCTABS00021 A highly efficient anti-explosion pad (6, 7) comprising multiple sheets of expanded metal net (10) separated by a core layer of porous material such as fiberglass, cotton batting or an assembly of miniature balls (22, 23, 24) formed from expanded metal net. When covering a wall or other structural element, the stratiform pad effectively dissipates the shock waves and thermal effects of a close range bomb explosion.
Patent CA-2125921-A1 (CA)
Inventor: ASANO SHINICHI
IPC: D21H19/82
Filed: 1994-06-15
Abstract: A cast coated paper for ink jet recording is constituted to include, in lamination: a base paper, an undercoating layer comprising a pigment and an adhesive, and a cast-coating layer comprising a polymer having a glass transition point of at least 40 <o>C formed by polymerization of an ethylenically unsaturated monomer. The cast coated paper is preferably controlled to have an air of at most 300 sec/100 cc. The undercoating preferably contains a cationic resin, particularly preferably a copolymer of a polyalkylenepolyamine and dicyandiamide. The cast coated paper thus produced with an excellent ink absorptivity suitable for ink jet recording while retaining a high surface gloss. <IMAGE>
Patent CA-2127777-A1 (CA)
Title: Lng delivery system
Inventor: GUSTAFSON KEITH
IPC: F17C9/02
Filed: 1994-07-11
Abstract: Two LNG storage tanks receive LNG from a fill station.     The two storage tanks are connected to an overflow tank into which the LNG flows during pressurization of the system. The overflow tank is connected to the use device, i.e. the vehicle's engine, through a heat exchanger to provide high pressure natural gas thereto. The fill station initially delivers LNG to the two storage tanks until the-tanks are substantially filled with LNG whereupon the fill station automatically stops delivery of LNG and begins to deliver natural gas vapor to the storage tanks until the pressure in 'the system reaches a predetermined maximum that is equal to or greater than the pressure required by the use device. During the pressurization of 'the system some of the LNG in the two storage tanks is forced into the overflow tank by the incoming natural gas vapor.
Patent CA-2128247-A1 (CA)
Title: Vaccines based on streptokinase
Inventor: LEIGH JAMES A
IPC: C07K16/00
Filed: 1993-01-18
Abstract: A vaccine far use to treat or prevent a disease in a vertebrate, the vaccine comprising an antigenic entity and a carrier, the antigenic entity being adapted to cause, following vaccination of the vertebrate with the vaccine, an immune response providing antibodies which inhibit a factor from a pathogen which directly or indirectly causes breakdown of protein in the vertebrate wher-ein said breakdown enhances growth of the pathogen. A vaccine against the streptokinase of Streptococcus uberis can be used to prevent mastitis in cattle,
Patent CA-2131950-A1 (CA)
Title: Fm theta-inducing audible sound, and method, device and recorded medium to generate the same
Inventor: MASAKI KAZUMI
IPC: G10K15/02
Filed: 1994-09-13
Abstract: Abstract of the Disclosure An  audible  sound  of modulated wave where  a  very low-frequency wave of about 20 hertz or lower is superposed on an audio low-frequency wave effectively stimulates Fm theta in human brain waves to improve attention and concentration during mental tasks when auditorily administered.  The audible sound is also effective in stimulation of human alpha wave when the very low-frequency wave lies within the range of about 2-10 hertz.   Such  audible  sound  is  artificially  obtainable  by generating an electric signal which contains such a modulated wave, and transducing it into audible sound wave.
Patent CA-2132641-A1 (CA)
Inventor: PIES JOHN R
IPC: B41J2/155
Filed: 1993-03-22
Abstract: An ink jet printhead is comprised of a lower body part (52) having a base section and a plurality of generally parallel spaced projections extending upwardly therefrom and an upper body part (54) having a top section and a corresponding plurality of generally parallel spaced projections extending downwardly therefrom.  The top sides of the lower body projections (59) are conductively mounted to the bottom sides of the upper body projections (61) to form sidewalls which define a plurality of ink-carrying channels (70).  Strips of a conductive adhesive (57) mount the lower and upper body projections together and a controller (80) is electrically connected to the strips to selectively impart either a positive, zero, or negative voltage to each strip.  The lower body part (52) is formed using a piezoelectric material poled in a first direction (P1) generally perpendicular to the channels and the upper body part (54) is formed using a piezoelectric material also poled in the first direction (P2).  By applying a positive voltage to a first strip of conductive adhesive and a negative voltage to an adjacent strip of conductive adhesive, first and second electric fields oppositely orientated to each other and normal to the direction of poling are produced in the lower and upper body projections which form first and second sidewalls for the channel, thereby causing the first and second sidewalls to deform in first and second channel expanding directions, respectively.
Patent CA-2135030-A1 (CA)
Inventor: HSU WEN-LIANG
IPC: B60C1/00
Filed: 1994-11-03
Abstract: The subject invention discloses a process for preparing a coupled styrene-isoprene-butadiene rubber which is particularly valuable for use in making automobile tire tread rubber compounds which comprises the steps of (1) solution terpolymerizing in an organic solvent from about 5 weight percent to about 40 weight percent styrene, from about 1 weight percent to about 10 weight percent isoprene, and from about 50 weight percent to about 94 weight percent 1,3-butadiene, based on total monomers, to a conversion of at least about 90% to produce a living styrene-isoprene-butadiene polymer, wherein the terpolymerization is initiated with an organolithium compound, and wherein the terpolymerization is conducted in the presence of a polar modifier at a molar ratio of the polar modifier to the organolithium compound, which is within the range of about 0.5:1 to about 5:1, and wherein the terpolymerization is conducted at a temperature which is within the range of about 20°C to about 150°C; and (2) coupling the living styrene-isoprene-butadiene polymer with a coupling agent selected from the group consisting of tin tetrachloride and silicon tetrachloride, wherein the molar ratio of the coupling agent to the organolithium compound is within the range of about 1:3 to 1:6.
Patent CA-2135124-A1 (CA)
Title: Process for the preparation of a poly-1-olefin
Inventor: BREUERS WERNER
IPC: C08F10/00
Filed: 1994-11-04
Abstract: Abstract of the Disclosure Process for the preparation of a poly-1-olefin A particularly uniform Ziegler catalyst in the form of spherical particles is obtained by using shock waves instead of a stirrer for the thorough mixing of the reactants. By means of this highly active catalyst based on a magnesium dialkyl, it is possible to obtain polymers in the form of spherical particles in the polymerization of alpha-olefins. A further advantage of the catalyst according to the invention is its high activity, which is such that only very small amounts of the catalyst are required for the polymerization. The residual prepared according to the invention is less than 10 ppm.  By virtue of its good responsiveness to hydrogen, the catalyst is suitable for the preparation of polymers with a broad bimodal molar mass distribution of sulfur-containing electron donors such as diethyl sulfite with alcohols such as ethanol has the effect of reducing the odor nuisance and increasing the number of possible uses of the polymer.  Considerable simplifications and advantages in handling, drying and processing are achieved as a result of the spherical shape of the particles and the very good flowability of the polymers and copolymers which is associated therewith.
Patent CA-2135969-A1 (CA)
Title: Microwave corn popper device and method
Inventor: GEISSLER RICHARD L
IPC: H05B6/64
Filed: 1994-11-16
Abstract: ABSTRACT OF THE DISCLOSURE         A microwave corn popper device is provided including a rigid bowl having a bottom portion and an inclined side extending upward from the bottom portion and terminating at a top portion.  A microwave susceptor is separate from the bowl and disposed within the bowl adjacent the bottom portion to receive kernels of corn.          The susceptor becomes hot in the presence of microwave energy.  A saucer-shaped metal plate is disposed beneath the susceptor at a predetermined spaced apart distance.     The metal plate is part of a support assembly which is separately mountable to the bowl.
Patent CA-2136332-A1 (CA)
Title: Compact counterbalancing system for sectional doors
Inventor: MULLET WILLIS
IPC: E05D13/00
Filed: 1994-04-29
Abstract: A counterbalancing mechanism (10) for a door (D) movable between a closed position proximate a door frame (12) and an open position displaced therefrom including a pair of drums (100, 100) for reeving lengths of cable (C) thereabout which are affixed to the door (D), shafts (70) for freely rotatably mounting the drums thereon, a pair of brackets (60, 60) mounted in spaced relation on the door frame, one of the brackets supporting each of the pair of shafts, a drive tube (30) extending between the pair of drums and being non-rotatably affixed thereto, a coil spring (80) positioned interiorly of the drive tube, said coil spring having one end (82) thereof non-rotatably affixed to the drive tube and the other end (81) non-rotatably affixed to the shaft, and a tension adjusting mechanism (110) for normally restraining the shafts and for effecting rotation of the shafts to selectively adjust the torsional forces in the coil spring.
Patent CA-2136490-A1 (CA)
Title: Process for making a solid by mixing alkaline-earth metal oxyde hydrates with heavy metal oxyde hydrates
Inventor: PICHAT PHILIPPE
IPC: C02F11/14
Filed: 1994-11-23
Abstract: Process for the manufacture of a solid which is practically insoluble in water and nonpolluting. This process comprises a stage according to which at least two compounds are mixed in aqueous medium with a view to obtaining paste. It is characterised in that one of the compounds, or first compound, includes alkaline-earth metal oxide hydrates, and another compound, or second compound, includes heavy-metal oxide hydrates, and in that the free water present in the paste or the liquid is present in the mixture in a proportion of quantities of between 20 and 60 % by weight of the total mixture, the solid obtained being substantially free from silicates and aluminates. The invention applies in particular to the fields of waste treatment and of building and of public works.
Patent CA-2141066-A1 (CA)
Title: Process for the cooling of an auto-ignition combustion chamber
Inventor: BENZ URS
IPC: F23R3/54
Filed: 1995-01-25
Abstract: In   a   combustion   chamber   which   consists essentially of an inflow zone and a combustion zone, the working gases flowing at high temperature into the combustion chamber are mixed with a fuel, in such a way that  the  latter  initiates  auto-ignition.  Whilst the inflow zone is cooled by effusion cooling, convective cooling is adopted in the combustion zone, the cooling air for the last-mentioned cooling being used at the same time as cooling air for the effusion cooling.
Patent CA-2141198-A1 (CA)
Title: Communication channel switching arrangement
Inventor: VAN LEEUW LUC
IPC: H04M3/30
Filed: 1993-08-13
Abstract: A switching arrangement that can be connected in a communications channel that comprises a pair of lines, between sets of terminal equipment, which comprises: (i) a line switch (6, 7), that is series connected in each of the lines; and (ii) a control cir-cuit (8) for the line switches comprising: (a) a charge reservoir (9) that is connected between the lines; (b) a reservoir charging switch (10) that is connected in series with the charge reservoir and controls the charging of the reservoir in response to a signal on the line; and (c) a reservoir discharging switch (11) that is controlled by a signal on the line and will allow the reservoir (9) when charged to energise control terminals of the line switches so that the line switches (6, 7) can maintain in an open state for a period of time by discharging of the reservoir.
Patent CA-2144627-A1 (CA)
Title: Palladium-containing three-way automotive catalysts having unique support
Inventor: SUMMERS JACK C II
IPC: B01J37/02
Filed: 1993-09-14
Abstract: A palladium three-way catalyst is supported on a unique ceria-lanthana-alumina support where the alumina content is low-er than previously believed necessary to maintain catalyst activity. Preferably the ceria and lanthana constitute the major propor-tion of the support.
Patent CA-2144980-A1 (CA)
Title: Fault tolerant memory system
Inventor: PAPENBERG ROBERT L
IPC: G06F11/14
Filed: 1993-09-10
Abstract: Memory system (100) provides redundancy with a small increase in memory. Data and ECC words provide a first level of error detection/correction.  Redundant addressing signals provide fault tolerance during propagation of address signals. Additional fault tolerance is achieved utilizing redundant clocks (115).  Data bits are divided into a plurality of modules having a bit size capable of being corrected by the ECC, allowing address and data hardware to fail and valid data be provided. Redundant DRAM control signals assure proper DRAM operation, including refresh. In one embodiment a continuous data scrub operation is performed, with data written to the memory device (101) with ECC words for error correction. Simultaneously, data and ECC code words are applied to a second ECC device (505) which creates an ECC code word which is campared with thc ECC code word written to the memory device (101) with the data word.
Patent CA-2145762-A1 (CA)
Title: Pp14-based therapy
Inventor: TYKOCINSKI MARK L
IPC: A61K47/48
Filed: 1993-09-28
Abstract: Method for treating a patient suffering form non-AIDS im-munosuppression by administering a reagent that specifically binds to an isoform of PP14, or a receptor for a PP14 isoform under phy-siological conditions. A schematic of the PP14 gene structure and partial sequence information for the PP14 genes and the PP14.2 protein are shown in the figure.
Patent CA-2146043-A1 (CA)
Title: Attachment member unit to be driven into hard receiving material by powder charge operated setting tool
Inventor: JANSSEN RUPERT
IPC: E04F13/08
Filed: 1995-03-31
Abstract: Attachment member unit includes an axially extending shank with a load engagement part at its trailing end. The shank has a pointed tip at its leading end. A prestressing element laterally encloses the pointed tip.      The prestressing element is formed of a sleeve part and a bearing part. The bearing part forms the leading end of the prestressing element and the sleeve part forms its trailing end. A recess extends into the bearing part from the leading end. The recess has a diameter such that the trailing end portion of the prestressing element under deforming forces can telescope into the bearing part. When the attachment member unit is driven, the prestressing element causes a prestress against a connector member and due to the telescoping action and also a dampening action, the connector member can be fastened to a receiving material by the shank, and the connecting member is not damaged.
Patent CA-2146924-A1 (CA)
Title: Opticle device for code reader
Inventor: TANIGUCHI TADASHI
IPC: G06K7/10
Filed: 1994-08-12
Abstract: To reduce the size, the weight, and the production cost and to improve the reliability of an optical device for a code reader for reading a code (24) imprinted on the package of an article, a light emitting element (21), a prism (22) and a light receiving element (15) are all fixed to a semiconductor substrate (14), so that the assembly at the semiconductor chip level of these elements (15, 21 and 22) is possible. This device can be used for an optical apparatus for reading various codes used in POS systems, physical distribution/management systems, production control systems, and so forth.
Patent CA-2147440-A1 (CA)
Title: Open station architecture for an inserter system
Inventor: CHURCHILL STEVEN J
IPC: B07C1/00
Filed: 1995-04-20
Abstract: A software architecture system is provided for real-time control of an inserting system having a central processor coupled to a plurality of distributed processors that are associated with physical modules of the inserting system, wherein the central processor is coupled to the distributed processors by at least one type of physical I/O channel. The system includes real-time control routines resident in the central processor, a plurality of virtual stations resident in the central processor, wherein each of the software stations corresponding to one of the physical modules of the inserting system. The system further includes at least one virtual I/O channel corresponding to each type of the physical I/O channel, the virtual I/O channel being resident in the central processor and operatively coupled to the physical I/O channel, and a message dispatcher resident in the central processor for dispatching messages from the virtual stations to the corresponding physical modules through the virtual I/O channel. The virtual I/O channel includes a multi-layered communication interface between the physical and the virtual stations, which includes an application interface layer that is independent of the type of physical I/O channel and a physical layer that is changes according to the type of physical I/O channel.
Patent CA-2147985-A1 (CA)
Title: Process for the separation of solid materials from microorganisms
Inventor: CUMMING ROBERT HENRY
IPC: C12P7/62
Filed: 1993-11-12
Abstract: Solid materials are separated from microorganisms by a process which comprises growing them at a fermentation temperature, conditioning them by cooling them without freezing and then heating to above the fermentation temperature without permitting substantial recovery from the conditioning stage.
Patent CA-2150131-A1 (CA)
Title: Use of 2-amino-6-n-propyl-amino-4,5,6,7-tetrahydrobenzothiazole as a pharmaceutical composition having an antidepressant activity
Inventor: HAMMER RUDOLF
IPC: A61K31/425
Filed: 1993-12-02
Abstract: The invention relates to the use of pramipexol as a pharmaceutical composition having an antidepressant activity.
Patent CA-2150229-A1 (CA)
Title: Nitric esters having a pharmacological activity and process for their preparation
Inventor: ARENA BARBARA
IPC: C07D333/22
Filed: 1993-11-15
Abstract: Nitric esters with pharmacological activity having general formula (I), their pharmaceutical utilisation and process for their preparation.
Patent CA-2151132-A1 (CA)
Title: Rubber compound for electrical rubber mold products
Inventor: KOBAYASHI HIROYUKI
IPC: H01B3/28
Filed: 1994-01-03
Abstract: A novel rubber molding composition suitable for electrical appliances, particularly for a PST, is obtained by improving the resistance to tearing of a silicone-modified EPDM inherently resistant to cold, weather conditions, and heat.  A PST produced from this composition is also provided.  A rubber molding composition for electrical. Appliances characterized by comprising (1) 100 parts by weight of a silicone-modified ethylene-propylene-diene terpolymer and (2) from 0.5 to 2 parts by weight of granular polytetrafluoroethylene and an amount of molybdenum disulfide effective to uniformly mix the granular polytetrafluoroethylene with the terpolymer; a rubber molding composition for electrical appliances characterized by comprising (1) 100 parts by weight of a silicone-modified ethylene-propylene-diene terpolymer, (2) from 0.5 to 2 parts by weight of granular polytetrafluoroethylene and an amount of molybdenum disulfide effective to uniformly mix the granular polytetrafluoroethylene with the terpolymer, and (3) 4 to 20 parts by weight of a 1,4-hexadiene type ethylene-propylene-diene terpolymer possessing a Mooney viscosity, [ML(1+4)121°C], in the range of from 60 to 80; electrical appliances such as, for example, PST, formed of the rubber molding composition mentioned above are provided.
Patent CA-2157129-A1 (CA)
Title: Improved epoxide isomerization catalysts
Inventor: FARAJ MAHMOUND K
IPC: C07B61/00
Filed: 1995-08-29
Abstract: Improved catalysts for isomerizing epoxides to allylic alcohols are disclosed. The catalysts contain lithium phosphate supported on high-purity silica. The use of high-purity silica as a support results in improved epoxide conversion and allylic alcohol selectivity, and reduced by-product generation. The invention includes a process for isomerizing epoxides using the catalysts. The process is well-suited to the manufacture of allyl alcohol from propylene oxide.