baber/WOPTO huggingface dataset:
Patent CA-2116106-A1 (CA)
Inventor: NATANSOHN ALMERIA L
IPC: G11B7/245
Filed: 1992-07-28
Abstract: A novel series of azo polymers, copolymers and polymer blends for reversible optical storage devices are described. Various azobenzenes can be bound in the side chain or within the main chain of long chain polymers such as polyester, polystyrene and poly methacrylates with very short or no spacers to form amorphous polymers which as a film or deposited on a transparent substrate can be used to record optical information using a linearly polarized laser beam which induces optical anisotropy in the film. The information can be erased thermally by heating above the glass transition temperature, or optically by overwriting with light polarized in a predefined zero direction or with circularly polarized light.
Patent CA-2117661-A1 (CA)
Inventor: RONDEAU ANDRE
IPC: A61J9/06
Filed: 1994-09-02
Abstract: Au moment du boire d'un nourrisson, on sait qu'il n'existe aucun objet qui soutienne le biberon de bébé, dans un angle précis et stable. On sait aussi quece dernier n'est pas suffisament autonome pour soutenir le bouteille lui-même quand il est installé dans in porte-bébé. Donc, dans la présente invention, un support pour biberon permet le soutien et l'inclination idéale lors du boire. L'objet permet une plus grande liberté du parent, lorsque celui-ci vaguer simultanément à plusieurs occupations, tout en gardant le bébé sous surveillanceau moment du rot.
Patent CA-2117828-A1 (CA)
Title: Methods for making microstructures
Inventor: HAEMMERLE WILLIAM H
IPC: G02B6/122
Filed: 1994-10-11
Abstract: Tapered optical waveguides (33') can be easily made by using photolithographic masking and etching to define on a substrate (21) a first polymer structure (22) having a substantially uniform thickness and a tapered width. The first polymer structure is heated sufficiently to form a meniscus along its entire length. The fluidity causes the material to redistribute itself such that, rather than being of uniform thickness, it has a thickness that varies with its width; consequently, the thickness as well as the width of the first polymer structure becomes tapered. The first polymer is cooled and hardened to form a second polymer structure (22') that has a tapered width and a tapered thickness as is desirable for a tapered optical waveguide. The second polymer structure itself can be used as a tapered optical waveguide, or it can be used to control the reactive ion etching of the underlying substrate. In the latter case, the configuration of the tapered second polymer structure is replicated in a glass substrate, for example, which then may be used as a glass tapered optical waveguide (33').
Patent CA-2118446-A1 (CA)
Title: Magnetic filtration device
Inventor: CALVERT LEONARD
IPC: B03C1/28
Filed: 1994-10-19
Abstract: A magnet holder accessory for an oil casing has a magnet casing having an exterior housing, magnet retaining means mounted to the magnet casing within the exterior housing, the magnet retaining means adapted to retain a magnet within the exterior housing a first distance from a lower surface of the exterior housing.  The exterior housing also has an upper surface a second distance from the magnet retaining means, wherein the first distance is a small distance for minimizing attenuation of the magnetic force of a magnet within the magnet retaining means, and the second distance is a distance significantly larger than the first distance so as to attenuate the magnetic force from a magnet retained within the magnetic retaining means.
Patent CA-2120099-A1 (CA)
Inventor: ISE KOICHI
IPC: G02B13/18
Filed: 1994-03-28
Abstract: An image pickup optical system having an image pickup lens system having in turn a plurality of lenses arranged in multiple stages for forming an image of an object on an image plane of an image pickup device is disclosed. The image pickup optical system includes a double refraction plate arranged downstream of the image pickup lens system, a diaphragm unit, as a first optical unit, for determining the F-number of the image pickup lens system by a diaphragm aperture, and a second optical unit.      When the F-number is equal to a pre-set value Fd or less, the second optical unit operates in conjunction with the double refraction plate for lowering the modulation transfer function (MTF) by the aberration due to an aspherical surface for a range of the spatial frequency not less than the cut-off frequency r c.      Sufficient spurious signal suppressive effects may be obtained even if the optical low-pass filter is constituted by a sole double refraction plate, such as a quartz plate.
Patent CA-2121084-A1 (CA)
Title: Tunnel barrier system and method of installing the same
Inventor: FLANAGAN ROY C
IPC: E21D11/38
Filed: 1994-04-12
Abstract: TUNNEL BARRIER SYSTEM AND METHOD OF INSTALLING THE SAME      Abstract of the Invention A tunnel barrier system for lining the interior surface of a tunnel cavity includes a first panel in facing engagement with and affixed to a first impermeable membrane. A second panel is in facing engagement with and is affixed to a second impermeable membrane.  The second panel is positioned adjacent to but spaced apart from the first panel to form a cavity between the panels.  A filling material is positioned within the cavity.  A third impermeable membrane is in facing engagement with both the first and second impermeable membranes and extends across the cavity such that the first panel, the second panel and the cavity are rendered airtight and watertight.
Patent CA-2122254-A1 (CA)
Title: The resolution of racemic verapamil
Inventor: EHRMANN OSKAR
IPC: C07C255/26
Filed: 1993-01-28
Abstract: The method proposed for separating racemates of verapamil is characterized in that the free base of the compound is reacted with optically active dibenzoyltartaric acid or ditoluoyltartaric acid in the molar ratio 1:1 to 1:2 in a mixture of methanol and water in the ratio 1:1 to 3:1 or in a mixture of acetone and water in the ratio 0.5:1 to 2:1, the diastereomeric mixture thus obtained is separated by crystallization, the diastereomers subsequently converted into their respective free bases and these optionally converted into their salts with physiologically tolerated acids.
Patent CA-2122991-A1 (CA)
Title: Transfection of vertebrate cells by homologous recombination
Inventor: SELDEN RICHARD F
IPC: A61K47/48
Filed: 1992-11-05
Abstract: The present invention relates to transfected primary and secondary somatic cells of vertebrate origin, particularly mammalian origin, transfected with exogenous genetic material (DNA) which encodes a desired (e.g., a therapeutic) product or is itself a desired (e.g., therapeutic) product, methods by which primary and secondary cells are transfected to include exogenous genetic material, including DNA targeting by homologous recombination, methods of producing clonal cell strains or heterogenous cell strains, methods of gene therapy in which the transfected primary or secondary cells are used, and methods of producing antibodies using the transfected primary or secondary cells. The present invention includes primary and secondary somatic cells, such as fibroblasts, keratinocytes, epithelial cells, endothelial cells, glial cells, neural cells, formed elements of the blood, muscle cells, other somatic cells which can be cultured and somatic cell precursors, which have been transfected with exogenous DNA which is stably integrated into their genomes or is expressed in the cells episomally.  The exogenous DNA either encodes a product, such as a translational product (e.g., a protein) or a transcriptional product (e.g., a ribozyme or an anti-sense nucleic acid sequence) which is a therapeutic product or is itself a therapeutic product (e.g., DNA  which binds to a cellular regulatory protein or alters gene expression).
Patent CA-2123305-A1 (CA)
Inventor: DAME DON
IPC: A61M60/804
Filed: 1992-11-20
Abstract: 2123305 9310357 PCTABS00022 Centrifugal pumps (10) are disclosed having nonrotatable membranes (21) to rotate fluid in a pumping chamber having at least a first open passage inlet (71) and an open passage outlet (91).  Specifically, the membrane (21) is deflected into a nonconcentric shape to the fluid rotation, with the nonconcentric shape being rotated to function as a centrifugal pump impeller by deformers (41, 42, 43) separated from the pumped fluid by the membrane (21). As the membrane (21) does not rotate, rotary shaft seals, bearings, or small gaps between moving, sliding, and/or rubbing pump surfaces and to which the pumped fluid is accessible are not required in the pumps (10). In preferred forms, the deformers (41, 42) can be located inside the membrane (21) and inside the pumping chamber or the deformer (43) can be located outside the membrane (21) and outside the pumping chamber. The membranes (21) are corrugated (102, 103) in the preferred form to direct the fluid flow into a rotary motion and to provide directional stiffness/flexibility characteristics. Secondary membranes (31) can be provided to cover the membrane (21) to prevent leaking and/or for ease of cleaning or sterilization. When the membrane (21) extends inside of the pumping chamber, a tube liner (51) can be provided inside of the membrane (21) and the deformer (41) to act as the primary inlet (81) or as a secondary inlet (81) with the housing inlet (71).
Patent CA-2124666-A1 (CA)
Title: Sorbitol derivatives as nucleators and clarifiers for polyolefins, and polyolefin compositions obtained therewith
Inventor: SYED ABUZAR
IPC: C08L23/02
Filed: 1994-05-30
Abstract: SORBITOL DERIVATIVES AS NUCLEATORS AND CLARIFIERS FOR POLYOLEFINS, AND POLYOLEFIN COMPOSITIONS OBTAINED THEREWITH     ABSTRACT OF THE INVENTION      Disclosed are certain 1,3-2,4-di(substituted arylidene)-and 1,3-2,4-di(substituted heteroarylidene)-D-sorbitols which are  useful  as  clarifying  and  nucleating  additives  for crystalline  and  semi-crystalline polyolefin  compositions. Also disclosed are such poly(C1-C8 alpha olefin) compositions containing them.
Patent CA-2126530-A1 (CA)
Inventor: UEBA HISAAKI
IPC: B01J47/12
Filed: 1994-06-22
Abstract: ABSTRACT OF THE DISCLOSURE     Disclosure describes ball-like structures formed from bundled, crimped fibers rounded around a central portion thereof as a core, the core being formed with a molten-fused structure and having the following stipulations:     (a) a density of the molten-fused structure is not less than 75% based on a density of the crimped fibers forming the ball-like structures.     (b) a length of the molten-fused structure is 5 to 50% based on a diameter of the ball-like structures, and (c) a withdrawing strength of a crimped fiber strand connected with the molten-fused structure is not less than 50% based on a linear strength of the crimped fiber strand itself used for the ball-like structures.
Patent CA-2128179-A1 (CA)
Title: Juice spout
Inventor: NIEDZIELSKI MICHAL
IPC: B65D17/44
Filed: 1994-07-15
Abstract: In  standard opening of  a 1 liter  or individual tatra packs  containing juice or other liquids  a sharp knife or a pair  of scissors  is usually used.  By making a  cut on the corner  of the box  and usually puncturing a  hole or two at the  other end of  the package one  is able to  pour out the liquid.   The problems that arises  in this scenario is that by  cutting the  corner of the  tatra pack  the container is weaken  greatly which causes the  person to spill the liquid while  pouring it into  the glass or other  container .  Our invention,  the juice spout, eliminates the use of any sharp objects  to open the container.   It also enables the person to  freely pour out  the liquid without  spilling it at all.          The  juice spout sits  atop the juice  box while two guiders hold  it in place and strengthens  the box.  While the juice spout is placed on the top of the tatra pack two needle like objects  puncture the box.  A  sliding opening on the top of the  juice spout enables the person  to slide open the spout when  pouring the liquid and slide  it close when done.  The juice  spout makes opening and using tatra packs convenient, efficient, simple and clean.
Patent CA-2128557-A1 (CA)
Title: Oxime derivatives of cephalosporanic structure and compounds for their preparation
Inventor: COLOMBO RICCARDO
IPC: A61P31/04
Filed: 1994-07-21
Abstract: Abstract:            OXIME DERIVATIVES OF CEPHALOSPORANIC STRUCTURE AND COMPOUNDS FOR THEIR PREPARATION            The invention relates to oxime derivatives of cephalosporanic structure, possessing antibacterial activity.
Patent CA-2128807-A1 (CA)
Title: Encapsulated breakers and method for use in treating subterranean formations
Inventor: NORMAN LEWIS R
IPC: C09K8/92
Filed: 1994-07-26
Abstract: The present invention relates to a method of breaking an aqueous fracturing fluid comprising introducing said aqueous fracturing fluid into contact with an encapsulated breaker said encapsulated breaker comprising an aqueous fluid soluble breaker for said fracturing fluid encapsulated within a membrane comprising a partially hydrolyzed acrylic crosslinked with either an aziridine prepolymer or a carbodiimide, said membrane having imperfections through which an aqueous fluid can diffuse, such that an aqueous fluid in said fracturing fluid can diffuse through said membrane, dissolve at least a portion of said breaker and diffuse outward from said encapsulated breaker to contact and break the fracturing fluid in contact therewith.
Patent CA-2130820-A1 (CA)
Inventor: FOWLER DWIGHT P
IPC: B65B51/10
Filed: 1993-02-25
Abstract: A storage bag (100) and a method and apparatus for forming such a storage bag. The storage bag contains a reclosure tie (101) formed as an integral marginal portion (between 101 and 104) of the bag beyond an edge of the bag. The marginal portion includes overlying layers (111, 112) of bag material that form an elongated structure along an axis with first and second ends (113, 114). A  fused closure (116, 117) is formed in the marginal portion parallel to the axis and over a portion of the marginal portion spaced from one end thereof. This structure defines a tail (120) and open loop (121) that wrap around an opened bag (100) thereby to close the bag in a positive fashion.
Patent CA-2131256-A1 (CA)
Title: Lead-free solder alloy
Inventor: SHANGGUAN DONGKAI
IPC: B23K35/26
Filed: 1994-08-31
Abstract: Abstract A non-toxic alloy for soldering electronic components comprising 90% Sn, 5% In, and 5% Ag.  The disclosed alloy has a fine microstructure.  Particles of intermetallic compounds are finely dispersed throughout the matrix, thereby inhibiting grain growth.  Accordingly, the alloy does not significantly coarsen after thermal aging.
Patent CA-2131932-A1 (CA)
Title: Timber hound having a bundle strapping means
Inventor: PERSSON KE R
IPC: B60P7/12
Filed: 1994-09-13
Abstract: Carrier for elongated goods, generally referred to as a timber hound, which carrier is arranged to be mounted e.g. under a wagon bridge of a vehicle, and which is formed as a elongated box having means for connection of vertical struts (3) and the ends thereof and having a strapping means (4) mounted inside the elongated timber hound box for making it possible to strap a bundle of elongated goods on the timber hound, which strapping means in the form of a wire (6) extending from one end of the timber hound and be connected at the opposite end of the timber hound and can be tightened thereon using an axial motor, in which said tightening means is in the form of ratchet type tightening means (12, 14) comprising a pair of spaced rails (14) having ratchet grooves (17) at the upper surface thereof, and a movable strapping part (12) which is connected to an active part (15) of the axial motor and which is slidable on top of said rails (14) and having latch pins (22) which can engage any one of the successive ratchet grooves (17) of the rails (14), the tightening wire (6) being connected to said movable strapping part (12), whereby the wire gets tightened by actuating the axial motor (13).
Patent CA-2132730-A1 (CA)
Title: Local application tumor treatment apparatus
Inventor: SIEVERT CHESTER E
IPC: A61N1/40
Filed: 1992-11-30
Abstract: Disclosed is apparatus and method for treating prostate tumors. The apparatus includes a platform (11) on which the patient may be seated. An electromagnetic coil (12)is disposed beneath the platform (11) and creates a field that acts on thermoseeds placed in the tumor. The method includes inductively heating the thermoseeds which heat the tumor cells to a temperature of between 45 and 50 ° C.
Patent CA-2132961-A1 (CA)
Title: Genetic sequences encoding flavonoid pathway enzymes and uses therefor
Inventor: HOLTON TIMOTHY A
IPC: C12Q1/68
Filed: 1993-03-25
Abstract: The present invention relates to a nucleic acid isolate comprising a sequence of nucleotides encoding, or complementary to a sequence encoding, a flavonoid 3'-hydroxylase or a functional derivative thereof. The present invention also relates to transgenic plants carrying and/or expressing the above-mentioned nucleic acid material.
Patent CA-2133183-A1 (CA)
Title: Combustion method of hydrocarbon fuels, fuel modifying apparatus, magnetic field sweeping apparatus, magnetic resonance apparatus, magnetizer, magnetization-processing method, andchemical-reaction-controlling method
Inventor: FUJIMOTO SHIGENOBU
IPC: G01R33/32
Filed: 1994-09-28
Abstract: ABSTRACT OF THE DISCLOSURE    A magnetizer wherein a magnetic fluid is flowed through a plurality of strong magnetic fields. Rate of chemical reaction, state of equilibrium and other factors can be easily controlled by regulating the intensity of the strong magnetic field and the distance in the magnetic field trav-eled by the magnetic fluid.
Patent CA-2137414-A1 (CA)
Title: Method for making sintered abrasive grain and apparatus for sintering abrasive grain
Inventor: CONWELL STANLEY L
IPC: F27B21/04
Filed: 1994-12-06
Abstract: A method for making abrasive grain and an apparatus for sintering unsintered abrasive grain precursor to provide sintered abrasive grain.  Abrasive grain prepared according to the method of the present invention can be incorporated into abrasive articles such as bonded abrasives (e.g., grinding wheels), coated abrasives, and nonwoven abrasives.
Patent CA-2141520-A1 (CA)
Title: Multi-channel communications network utilizing an improved channel selection method
Inventor: WHITE JONATHAN R
IPC: H04B7/26
Filed: 1995-01-31
Abstract: A multi-channel communications network includes a host computer, a controller,  at least one base station and a plurality of remote terminals which communicate with the base stations via RF communication.   Each base station has a plurality of communication channels which can be used to communicate with the remote terminals. Each base station also uses a control channel to communicate with the remote station to indicate which of the plurality of communication channels is to be used to transmit the information.  A channel history is kept for each of the plurality of communication channels such that selection by the controller of the channel for communication can be based not only on whether the channel is presently clear but also on the success rate of that channel in the past.   The controller includes the capability of comparing various channel histories to determine which channel is most desirable.
Patent CA-2146138-A1 (CA)
Title: Double buffering operations between the memory bus and the expansion bus of a computer system
Inventor: TAYLOR MARK
IPC: G06F12/02
Filed: 1993-09-29
Abstract: Double buffering operations to reduce host bus hold times when an expansion bus master is accessing the main memory on a host bus of a computer system.  A system data buffer coupled between the main memory and the expansion bus includes 256-bit double read and write buffers.  A memory controller coupled to the double read and write buffers and to the expansion bus includes primary and secondary address latches corresponding to the double buffers.  The memory controller detects access to the main memory, compares the expansion bus address with the primary and secondary addresses and controls the double read and write buffers and the primary and secondary address latches accordingly.  During write operations, data to be written to the same line of memory is written to a first of the double write buffers until a write occurs to an address to a different line before data is transferred to main memory.  During read operations, a full line is loaded into a first of the double read buffers, and the next full line is retrieved into a second read buffer from main memory if a subsequent read hit occurs in the first read buffer.
Patent CA-2148396-A1 (CA)
Inventor: NAE HEMI
IPC: C09D7/43
Filed: 1995-05-02
Abstract: A novel organophilic clay gellant comprising the reaction product of:      (a)  a smectite-type clay having a cation exchange capacity of at least 75 milliequivalents per 100 grams of natural clay without impurities; (b)  a first organic cation in an amount of from about 75% to about 150% of the cation exchange capacity of the smectite-type clay; (c)  a second organic cation provided by a polyalkoxylated quaternary ammonium salt; and (d)  one or more organic anion(s) that is capable of reacting with said first and second organic cations, to form an organic cation-organic anion complex with said smectite-type clay. The organophilic clay gellant is used in a non-aqueous fluid system such as paints, inks, and coatings to provide improved rheological properties.
Patent CA-2148933-A1 (CA)
Title: Beta crystalline modification of 2,2',2"-nitrilo [triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2, 2'-diyl)phosphite]
Inventor: PASTOR STEPHEN D
IPC: C07F9/6574
Filed: 1993-11-22
Abstract: This invention pertains to a beta crystalline modification of 2,2',2''-nitrilo[triethyl-tris-(3,3',5,5'-tetra-tert-butyl-1,1'-biphenyl-2,2'_ -diyl) phosphite], to a process for preparing said modification and the use thereof for stabilizing organic materials against oxidative, thermal or light-induced degradation.
Patent CA-2150326-A1 (CA)
Title: Azolyl methyl phenyl derivatives having aromatase inhibitory activity
Inventor: MURAKAMI KIMIHIRO
IPC: C07D249/08
Filed: 1995-05-26
Abstract: Compounds exerting excellent aromatase inhibitory activity in vivo and in vitro with higher specificity and greater safety are provided together with the salts thereof.  Using the same, there are also provided, prophylactic agents and/or therapeutical agents of estrogen-dependent diseases, contraceptive agents for females, and aromatase inhibitory agents for use in the form of reagents for human or animals.  The compounds are of the formula (I), wherein R2 is represented by the formula (II) or (III).       (I) A: O, S, CH2 D: CH, N     R2:       (II) or     (III)
Patent CA-2154313-A1 (CA)
Title: Process for producing a hydrowax
Inventor: DIERICKX JAN LODEWIJK MARIA
IPC: C10G73/44
Filed: 1995-07-20
Abstract: Process for producing a hydrowax comprising the steps of (a) hydrocracking a blend obtained by blending at least one distillate fraction and a deasphalted oil (DAO); (b) separating from the hydrocracker effluent a fraction of which at least 90% by weight has a boiling point of 370 °C or higher (the 370+ fraction); and (c) separating the 370+ fraction in a top-fraction and a bottom-fraction at an effective cutpoint below 600 °C, thus yielding the hydrowax as the top-fraction.      The hydrowax thus produced is a very suitable feedstock for a steam cracker for the production of ethene. The hydrowax can also be very suitably applied as a feed for the production of lubricating base oils.