baber/WOPTO huggingface dataset:
Patent CA-2122438-A1 (CA)
Title: Control procedure of a power converter device for supplying a continuous current to an electric arc furnace
Inventor: DU PARC JACQUES
IPC: H02M7/17
Filed: 1994-04-28
Abstract: This device includes at least one transformer (9, 10, 11) supplied, at its primary (9) by a three-phase alternating current and delivering, on at least one secondary (10, 11), a three-phase current applied to rectifying means delivering, as output to the load, a rectified voltage and current, these rectifying means being of the type including, for each secondary, controlled semiconductor devices (15, 16). According to the invention, the rectifying means comprise a free-running circuit (19), the said controlled semiconductor devices being triggered with firing angles which are essentially variable, these being modified so as to increase the conduction period in the free-running circuit while at the same time decreasing the conduction period in the triggered semiconductor devices, and conversely, thus making it possible to deliver, to the load, an active power or a reactive power which is substantially constant despite variations in the impedance of the load. <IMAGE>
Patent CA-2124565-A1 (CA)
Title: Method for inhibiting selectin-dependent adhesion of leukocytes and platelets by o-glycosylation modification
Inventor: KOJIMA NAOYA
IPC: A61K47/48
Filed: 1992-12-01
Abstract: O-glycosylation and O-glycosylation extension inhibitors influence selectin-dependent interactions between cells and between cells and platelets.
Patent CA-2125120-A1 (CA)
Title: Nucleotide sequences and methods for detection of serpulina hyodysenteriae
Inventor: DUHAMEL GERALD E
IPC: C12Q1/68
Filed: 1994-06-03
Abstract: The invention provides a method for detecting the presence of Serpulina hyodysenteriae in a biological sample, an oligonucleotide primer and an S. hyodysenteriae-specific oligonucleotide probe useful in that method, and an article of manufacture that contains the primers and/or probe.  Also provided are an about 2.3-kb DNA fragment derived from genomic DNA of S. hyodysenteriae and encoding for an about 56 kDa polypeptide, a recombinant expression vector containing the DNA fragment, the 56 kDa polypeptide and a monoclonal antibody reactive with the peptide, and a method of assaying for antibodies reactive with the 56 kDa peptide.
Patent CA-2125403-A1 (CA)
Title: Novel tissue plasminogen activator variants
Inventor: HEYNEKER HERBERT L
IPC: C12N5/10
Filed: 1992-12-14
Abstract: Biologically active variant tissue plasminogen activators are disclosed. The disclosure focuses on position 276 variants that exhibit enhanced fibrin specificity.
Patent CA-2125864-A1 (CA)
Inventor: KIRKPATRICK FRANCIS H
IPC: G01N27/447
Filed: 1992-12-23
Abstract: This invention provides electrophoresis gel container assemblies comprising at least a container element (14), a cover ele-ment (11), and means for releasably sealing the cover element to the container (12); methods for fabricating and for using the container assemblies; and kits comprising the container assemblies with or without precast electrophoresis therein in combi-nation with at least one electrophoresis item.
Patent CA-2130410-A1 (CA)
Title: Retractable expandable jack
Inventor: KERKLAAN ALBERT J
IPC: H01R13/502
Filed: 1994-08-18
Abstract: An expandable jack is disclosed having a first member and a second member attached by a pivotal connection.  The members can be expanded about the pivotal connection to form a receptacle for receiving a plug and collapsed about the connection, when not in use, to fit into storage spaces of reduced size.  The jack is of particular use in application interface cards for use in laptop, notebook and palmtop computers.  In such cards, the jack is mounted on a platform which is moveable between an exposed position, external of the card and a retracted position within the body of the card.  The platform thereby moves the jack between a storage position within the card and a position for use, wherein the jack is external of the card.   The jack allows direct connection between the card and a communication line without the use of a separate Data Access Arrangement and without interfering with adjacent card slots.   The plug can be inserted into the card while avoiding interference with obstructions such as a communication line extending from an adjacent card in the computer.
Patent CA-2131107-A1 (CA)
Title: Wood column-beam joint structure using lag screw bolts
Inventor: KOMATSU KOHEI
IPC: E04B1/38
Filed: 1994-08-30
Abstract: A wood column-beam joint structure using lag screw bolts for joining a wood column member and wood beam members is disclosed. The lag screw bolts consisting of a lag screw section are screwed into the column member and both bolt sections provided at its ends are protruded beyond the side faces of the column member. Head sections of T-shaped gusset plates made of steel plate are fastened to the protruded bolt sections of the lag screw bolts by means of nuts and leg Sections of T-shaped gusset plates are fitted into slits provided at one end of each of the wood beam members. Drift-pins are fitted into the small holes provided in the leg sections of T-shaped gusset plate and the small through holes provided in the beam members corresponding thereto, thereby securing the leg sections of the T-shaped gusset plates and the wood beam members.
Patent CA-2132672-A1 (CA)
Title: Method for load balancing in a multi-processor system
Inventor: WITTE MARTIN
IPC: G06F15/16
Filed: 1994-09-22
Abstract: Method for load handling in a multiprocessor system, particularly a multiprocessor system of a communication system, whereby arising jobs can be processed by a plurality of processors under real-time conditions. When individual processors proceed into overload due to locally heavy load situations, then a discharge of the local overload is achieved in that further requests arriving at the processor in this load situation are forwarded insofar as possible or necessary to other processors that are not overloaded.
Patent CA-2132713-A1 (CA)
Title: Can body
Inventor: RAMSEY CHRISTOPHER P
IPC: B65D8/12
Filed: 1993-04-20
Abstract: A sheet metal can body (1) comprises an end wall (2) and a tubular side wall (3) which includes a plurality of flexible panels (4) recessed within the cylindrical envelope of the side wall and extending between plain cylindrical end portions (5) of the side wall. Each panel (4) is formed of a plurality of flutes (6) defined laterally on each side by a convex rib (7).
Patent CA-2135625-A1 (CA)
Title: Process for the separation of cobalt from nickel
Inventor: KERFOOT DEREK G E
IPC: C22B3/44
Filed: 1993-05-19
Abstract: A process is disclosed for separating cobalt in the form of cobalt (III) hexammine sulphate from an aqueous solution containing cobalt (III) hexammine sulphate and nickel (II) hexammine sulphate comprising adding ammonium sulphate to provide an effective amount of ammonium sulphate, saturating the solution with an effective amount of ammonia at a temperature whereby the triple salt of cobalt (III) hexammine sulphate, nickel (II) hexammine sulphate and ammonium sulphate is precipitated, recovering the precipitated triple salt from the solution, and repulping the triple salt with an effective amount of water or aqueous ammonia solution to selectively leach nickel (II) hexammine sulphate to produce a crystalline cobalt (III) hexammine sulphate with a cobalt : nickel ratio of at least 100 : 1.
Patent CA-2135764-A1 (CA)
Inventor: BRINON THIERRY
IPC: A61B19/00
Filed: 1993-05-13
Abstract: PCT No. PCT/FR93/00465 Sec. 371 Date Nov. 10, 1994 Sec. 102(e) Date Nov. 10, 1994 PCT Filed May 12, 1993 PCT Pub. No. WO93/23109 PCT Pub. Date Nov. 25, 1993Surgical instrument for epidural anesthesia comprising a needle and catheter associated therewith which slides in the needle. The catheter has a set of main axial reference marks coinciding with an index on the needle. A reading will indicate the length of the catheter extending from the distal end of the needle. The catheter also includes a set of auxiliary reference marks distinguishable from the main reference marks.
Patent CA-2137715-A1 (CA)
Title: Low friction baler liner
Inventor: DRIGGS LELAND W
IPC: A01F15/04
Filed: 1994-12-09
Abstract: A low friction liner is described for mounting to an agricultural material baler within the discharge chute for the baled materials. The liner includes liner plates of low friction material that are attached by a mount to the inwardly facing surfaces of the baler discharge chute.      The low friction material provides inwardly facing low friction wear surfaces used to engage and guide materials along the discharge chute to a open discharge end. In one preferred embodiment, the low friction surfaces are flat and continuous from forward to rearward ends of the discharge chute plates. In another preferred form, angular indentations are made within the liner with incised or indented shoulders facing the rearward ends of the discharge chute plates to provide abutment surfaces for avoidance of "spring back" of baled materials as they are moved toward the discharge end.
Patent CA-2138192-A1 (CA)
Inventor: DIRX LIEVEN
IPC: G03B42/04
Filed: 1994-12-15
Abstract: A method for wrapping a stack of rectangular photographic light-sensitive sheets in a lightproof package and for loading them in daylight in a lightproof cabinet arranged for opening said wrapped stack to free the light-sensitive sheets for further treatment. The method includes the steps of: wrapping photographic light-sensitive sheets in a wrapper formed of two lightproof wrapping foils and sealing said wrapper with a first peripheral lightproof closure spaced outwardly from the four edges of the stack of sheets; providing said wrapper with a clamping, second peripheral lightproof closure located between the first closure and the perimeter of the stack of sheets; opening the first closure in daylight and loading the wrapped stack of sheets while still closed by the second closure in the opened cabinet; and closing said cabinet to make it lightproof, unclamping the second closure and removing the wrapping foil lying on top of the stack of sheets to free them for further processing.
Patent CA-2139980-A1 (CA)
Inventor: DEMAREST DAVID
IPC: A61B17/04
Filed: 1995-01-11
Abstract: An apparatus for cutting an indefinite length suture strand to uniform lengths for subsequent threading and swaging to a surgical needle includes a drawing tower having at least one guide member defining a drawing axis parallel thereto.  First and second gripping devices are provided to grip the indefinite length suture strand and draw it along the drawing axis; each gripping device mounted for reciprocal movement on at least one guide member.  A retractable cutter for cutting the indefinite length article is also provided for cutting the strand at a start position along the drawing axis.  The indefinite length suture strand is fed to the drawing axis and drawn a predetermined distance beyond the location of the retractable cutter for positioning within a suture receiving opening formed in the surgical needle, while the second gripping device reciprocates to a start position along the drawing axis. the indefinite length suture strand is then inserted within the suture receiving opening of the needle and cut to a predetermined length by the retractable cutter after the second gripping means has gripped the indefinite length suture strand at the start position.
Patent CA-2139981-A1 (CA)
Inventor: DEMAREST DAVID
IPC: A61B17/06
Filed: 1995-01-11
Abstract: An automated machine for attaching a suture to a surgical needle comprises a first apparatus located at a first predetermined location for sorting a plurality of randomly oriented needles and orienting each needle for automatic handling at a first predetermined location, each of the needles having a suture receiving opening formed therein.   A second apparatus located at a second predetermined location is provided for automatically cutting an indefinite length of suture material to a definite length suture strand and for automatically inserting an end of the definite length suture strand into the suture receiving opening formed in the needle.  Also provided is a third apparatus for swaging the needle to close the suture receiving opening about the suture to secure said suture thereto and form therefrom a needle and suture assembly.  An indexing device automatically receives each individual needle in a predetermined orientation at the first predetermined location and conveys the needle for sequential processing from the first to the second locations to form the needle-suture assembly.
Patent CA-2140658-A1 (CA)
Inventor: DURAND JOCELYN
IPC: A61B5/025
Filed: 1993-12-07
Abstract: The electronic stethoscope is designed to minimize the influence of the various types of noise while optimizing auscultation of the sounds of interest, and to enable a cardiologist to auscultate mechanical heart valves. It comprises a probe for sensing sounds of interest produced within a patient's body and for converting these sounds to an electric signal, and an audio amplifier and earphones for reproducing the sounds of interest in response to this electric signal. The stethoscope comprises: (a) a first filter unit having a frequency response that optimizes filtering of the tremor and passing of the low frequency sound components of interest in the range including the frequencies lower than 75 Hz; (b) a second filter unit having a frequency response that optimizes both attenuation of the ambient noise and passing of the sound components of interest in the range 110-1300 Hz, taking into consideration the variation of sensitivity of the human ear in function of frequency; (c) a third filter unit for passing the sounds of mechanical heart valves; and (d) a level detector detecting the amplitude level of the electric signal to activate a pulse generator of which the pulses are applied to the audio amplifier for momentarily and repeatedly disabling this audio amplifier when the detected amplitude level is higher than a predetermined amplitude level threshold.
Patent CA-2143992-A1 (CA)
Title: Preparation of (1r,4s)-4-hydroxy-1,2,2-trimethylcyclopentyl methyl ketone and derivatives and stereoisomers of this compound
Inventor: JOHN MICHAEL
IPC: C07C49/337
Filed: 1995-03-06
Abstract: A process for preparing 4-hydroxy-1,2,2-trimethylcyclopentyl methyl ketones of the general formula I, in particular of the (1R,4S)-4-hydroxy-1,2,2-trimethylcyclopentyl methyl ketone of the formula Ia                        (I),                     (Ia) which is required for preparing the red dye capsorubin which is in demand, starts from 2,2,6-trimethylcyclohexanones of the gen-eral formula II              (II), where R is hydrogen or a protective group, via the novel intermediates of the general formulae V and VI             (V)            (VI), by diastereoselective epoxidation and reaction of the resulting 7-oxabicyclo[4.1.0]heptanes of the general formula VIII            (VIII) (R=H or protective group) with Lewis acids and, where appropriate, removal of the protec-tive group. Also claimed are the novel intermediates of the for-mula V and their (1S) and (1R) isomers and those of the formula VIII as well as their (1R,3S,6S), (1S,3S,6R) and (1R,3R,6S) isomers.
Patent CA-2146664-A1 (CA)
Inventor: CHU MICHAEL S H
IPC: A61B17/12
Filed: 1993-09-24
Abstract: A ligating band dispenser (33) for dispensing a plurality of ligating bands (95, 96, 97) individually during a sequence of operations for a ligating instrument (25). Interfitted housing (45) and piston (46) segments support a plurality of ligating bands at axially spaced locations. Retraction of the piston segment dispenses on ligating band and shifts the remaining ligating bands distally and axially. After retraction, the piston is biased forward so a next retraction dispenses another ligating band.
Patent CA-2148534-A1 (CA)
Title: Optical waveguide spectral attenuation using an otdr
Inventor: HANSON THOMAS ARTHUR
IPC: G01M11/00
Filed: 1995-05-03
Abstract: A method of measuring spectral attenuation of an optical waveguide fiber using an OTDR.  The spectral attenuation curve is generated by analyzing OTDR data taken at three or four wavelengths.     There is particular interest in the wavelength range 1200 nm to 1600 nm, which includes the operating windows about the wavelengths 1310 nm and 1550 nm.     An accurate spectral attenuation curve is obtained using OTDR measurements at 1310 nm, 1410 nm and 1550 nm.     The inventive method is accurate, fast and lower in capital and maintenance costs.
Patent CA-2149935-A1 (CA)
Inventor: DUCRET AMELIE
IPC: C12P19/02
Filed: 1995-06-21
Abstract: The  invention disclosed relates  to a process  for the preparation of sugar and-sugar alcohol esters of general formula I    (R-COO-)n-R1                    (I) wherein R is an alkyl group, R1 is derived from a sugar or a polyol moiety and n is 1 to 3, comprising reacting a sugar or a polyol with an acyl moiety, such as a carboxylic acid or ester, in a suitable solvent therefor and in the presence of an enzymatic catalyst capable of catalyzing the formation  of  ester  bonds,  and  under reduced pressure sufficient to vaporize the solvent and by-product water, and continuously removing the water.
Patent CA-2151217-A1 (CA)
Inventor: NISHIKAWA CHIHARU
IPC: C04B35/66
Filed: 1995-06-07
Abstract: The castable refractory material comprising as binders, per 100 parts by weight of solid components, (a) 10-30 parts by weight of water-inactive, fine refractory powder, which is a mixture of fine refractory powder having an average diameter of 0.2-0.6 µm and fine refractory powder having an average diameter of 1-10 µm at a ratio of 1:2-2:1; (b) 2-7 parts by weight (as an effective amount) of alumina cement having an average diameter of 3-8 µm, cement clinker minerals thereof comprising CaOAl2O3 and CaO2Al2O3, with 12CaO7Al2O3, if any, in such an amount that a diffraction intensity index of the 12CaO7Al2O3 at a lattice plane distance D of 2.68 .ANG. is 1 or less assuming that the diffraction intensity index of the CaOAl2O3 at a lattice plane distance D of 2.96 .ANG. is 100; and (c) 0.4-3 parts by weight of fine amorphous silica powder having an average diameter of 0.5 µm or less; the balance of the solid components being substantially refractory aggregate and refractory powder.
Patent CA-2152612-A1 (CA)
Inventor: MOORE WILLIAM P
IPC: C05B7/00
Filed: 1994-01-04
Abstract: A method of preparing a new granular homogeneous metal ammonium phosphate-alkylene urea buffered fertilizer, containing slow releasing water insolubb nitrogen of two types which provide sustained nitrogen release. The method is based on the discovery that a strong metal ammonium phosphate matrix may be formed to homogeneously contain fine particles of alkylene urea compounds.  The new buffered fertilizer provides concentrated slow release nitrogens, and phosphate, and buffering arnounts of metal nutrients. The alkylene urea may be formed in-situ from liquids concommitantly with the formation of the metal ammonium phosphate, or it may be admixed as finely divided alkylene urea solids. The preferred alkylene uleas are methylene ureas and polymers, isobutylene diurea, and crotonylidene diulea.  The metal nutrients are divalent and are preferably magnesium, magnanese, zinc, and iron reacted as oxides, hydroxides, or carbonates.  The ammonium ion is supplied in the method as anhydrous ammonia, ammonium hydroxide, and preferably as a combination of phosphoric acid and ammonium phosphate.  The magnesium, ammonium, and phosphorus entities are reacted at about a mol ratio of 1.0 to 1.0 to 1.0 at about the boiling point of water, and at about atmospheric pressure to form a new fertilizer composition.
Patent CA-2156630-A1 (CA)
Inventor: SUN KWOK KUN
IPC: A41D31/00
Filed: 1993-04-23
Abstract: A water and breathable flame-retardant laminate of two layers (1, 3) of porous expanded polytetrafluoroethylene laminated together by a flame-retardant adhesive layer (2) of poly(urea-urethane) polymer containing phosphorus ester groups built into the chains of the polymer. The flame-retardant components do not wash out of the adhesive and laminate under repeated laundering or dry cleaning.
Patent CA-2156854-A1 (CA)
Inventor: TSELESIN NAUM N
IPC: C22C32/00
Filed: 1994-02-28
Abstract: Cutting members are formed with abrasive material comprising a plurality of particles protruding through a surface of the retaining material with optional assistance of mesh material for durable cutting members; and the cutting members are selectively continuous or discontinuous and spatially mounted along the working edge (29) of a core (25). Some of the cutting members or portions of the cutting members are arranged for stock removal (28), and same are arranged for gauge keeping (26). Since the individual portions are separate, more shock removal portions can be included, with fewer gauge keeping portions as may be required. Alternatively, the cutting members may zig-zag acres the core to provide stock removal, while the sides of the members provide the gauge keeping function.
Patent CA-2157518-A1 (CA)
Title: Assymetrical wall enclosure loudspeaker
Inventor: BLUMENKRANZ ISRAEL
IPC: H04R1/02
Filed: 1995-10-28
Abstract: In enclosures for loudspeakers it is the norm that they are constructed of six sides that are symetrical. The top is parallel to the bottom;the sides are parallel to one another as is the front and back. Loudspeaker enclosures that are constructed of curved or rounded walls do exist as do enclosures that have four assymetrical walls. In this invention,all the walls of the loudspeaker enclosure are assymetrical. That is the top is non parallel to the bottom, the sides are non parallel to each other as is the front and back.
Patent CA-2158626-A1 (CA)
Title: Distributed control system for powder coating system
Inventor: CRUM GERALD W
IPC: G05B19/418
Filed: 1995-09-19
Abstract: A powder coating control system comprising a plurality of gun controls associated with a like plurality of powder spray guns. Each of the gun controls stores a plurality of presets spray parameters. Each of the gun controls responds to part identification signals and part position signals to select in real time one of the stored presets of spray parameters and trigger its respective powder spray gun ON and OFF to apply a powder coating to the moving part in accordance with the selected set of spray parameters.      The control system further permits a gun purge cycle to be programmed either before or after the powder coating process is executed. The control system automatically initializes and brings each of the gun controls to an operable state on-line with the system control.
Patent CA-2160899-A1 (CA)
Title: Retinal eye disease diagnostic system
Inventor: DREHER ANDREAS W
IPC: A61B3/14
Filed: 1993-04-21
Abstract: The topography, thickness, and fiber orientation of the nerve fiber layer (18) at the fundus of the eye (11) are determined by measuring the polarization shift induced in a return beam of polarized light which is reflected at the ocular fundus from an in-cident beam of a known polarization state. A corneal polarization compensator (25) ef-fectively cancels the birefringent effects of the cornea (10) and other portions of the eye (11) anterior to the fundus, so that clinically meaningful results are produced.
Patent CA-2164685-A1 (CA)
Title: Method for producing an alcohol
Inventor: IKARIYA TAKAO
IPC: C07C41/26
Filed: 1995-12-07
Abstract: The present invention provides a method for producing a alcohol including an optically active alcohol by hydrogenating a carbonyl compound in the presence of a homogenous catalyst, a base and a nitrogen-containing organic compound with a less expensive catalyst in a higher yield and a higher efficiency.