baber/WOPTO huggingface dataset:
Patent CA-2108121-A1 (CA)
Title: Plasma arc cutting process and apparatus using an oxygen-rich gas shield
Inventor: COUCH RICHARD W JR
IPC: H05H1/30
Filed: 1992-03-09
Abstract: A plasma arc torch (10) has a secondary gas flow (46) that is extremely large during piercing of a workpiece (36). The secondary flow (46) exits the torch immediately adjacent the transferred plasma arc (34) and is an extremely uniform, swirling flow. A swirl ring (60) is located in the secondary gas flow path (50) at the exit point. A prechamber (58) feeds gas to the swirl ring (60), which is in turn fed through a flow restricting orifice (56). For certain applications the secondary gas (46) is a mixture of an oxidizing gas and a non-oxidizing gas in a flow ratio of oxydizing to non-oxidizing in the range of 2:3 to 9:1. A network (44) of conduits and solenoid valves (SV1-SV17) operated under the control of a central microprocessor (90) regulates the flows of plasma gas (42) and secondary gas (46) and mixes the secondary gas (46). The network (44) includes valued parallel branches (78,80,84,86) that provide a quick charge capability and a set of venting valves (SV11-SV14), also electrically actuated by the microprocessor (90), to provide a quick discharge. In a preferred high-definition embodiment, a nozzle (28) with a cut back outer surface and a large, conical head (28b) allows a metal seal and enhanced cooling.
Patent CA-2109072-A1 (CA)
Inventor: MURPHY MARTIN
IPC: F01L1/20
Filed: 1992-02-25
Abstract: A removable, adjustable pushrod (2) incorporates an upper threaded retractable section (24a) which enables the technician to shorten the pushrod. At the shortened length, the pushrod can be removed from the side of an Evolution R type motorcycle engine without dismantling the upper rocker box assembly, which also enables a motorcycle repair technician to adjust the length of the pushrod to ensure proper and quiet hydraulic lifter operation.
Patent CA-2109580-A1 (CA)
Title: Plant medium-chain thioesterases
Inventor: VOELKER TONI A
IPC: C12N15/29
Filed: 1992-05-21
Abstract: By this invention, further properties and uses of plant medium-chain thioesterases are provided. In a first embodiment, this invention relates to plant seed and oil derived from that seed, which normally do not contain laurate, but now are found to contain laurate. In yet a different embodiment, this invention relates to a particular medium-chain thioesterase sequence, the Bay medium-chain thioesterase DNA sequence and to DNA constructs for the expression of this enzyme in a host cell. Other aspects of this invention relate to methods for using a plant medium-chain thioesterase.  Expression of a plant medium-chain thioesterase in a bacterial cell to produce medium-chain fatty acids is provided. Methods to produce an unsaturated medium-chain thioesterase by the use of a plant medium-chain thioesterase are also described herein.
Patent CA-2111976-A1 (CA)
Inventor: MILLER ALAN G
IPC: B41M5/52
Filed: 1992-06-05
Abstract: A composition suitable for an ink-jet receptive layer comprising from about 1 % to about 10 % of at least one carboxylic acid having a pKa of from about 2 to about 6, said acid being selected from the group consisting of aryl monocarboxylic acids, aryloxy monocarboxylic acids, alkyl carboxylic acids having alkyl groups containing at least about 11 carbon atoms, dicarboxylic acids, tricarboxylic acids and pyridinium salts, and at least one liquid-absorbent polymer comprising from about 90 % to about 99 % aprotic constituents, and a transparent sheet suitable for making visual transparencies having a film backing having such ink-receptive layer coated on at least one major surface thereof.
Patent CA-2114459-A1 (CA)
Title: Liquid crystal display apparatus with a substrate having a rough alignment layer, and a method for producing the same
Inventor: MIZUSHIMA SHIGEAKI
IPC: G02F1/1337
Filed: 1994-01-28
Abstract: A liquid crystal display apparatus having a pair of substrates with a liquid crystal layer interposed therebetween is disclosed. Also, a method for producing the same and a substrate are disclosed. In the liquid crystal display apparatus, an aligning film is formed on at least one of the pair of substrates, the surface of the aligning film is made rough for controlling pretilt angles of liquid crystal molecules in the liquid crystal layer which are in contact with the surface of the aligning film, and the degrees of roughness are different among a plurality of prescribed regions.
Patent CA-2119034-A1 (CA)
Title: Loop machine for helically winding strip
Inventor: MENZEL STANLEY W O
IPC: B29L23/24
Filed: 1992-09-30
Abstract: The invention relates to apparatus for helically winding pipes from tube forming plastics strip comprising a single fixed ri-gid loop (20) formed from a length of metal band, wherein the inner surface of the loop forms a spiral path along which the strip is directed when helically wound, strip guide means (26) for guiding the strip into the path of the loop (20), and driven roller means (23, 24) for driving the strip around the spiral path and for joining together adjacent edges of adjacent convolutions of the strip, whereby during the helical winding process, the strip is driven around the spiral path in frictional engagement with the loop inner surface, maintaining intimate contact therewith, to thereby form the pipe.
Patent CA-2119221-A1 (CA)
Inventor: GILLES ROBERT A
IPC: G06F9/46
Filed: 1994-03-16
Abstract: The invention provides transaction synchronization in the form of COMMIT processing in a distributed, heterogeneous database system wherein some resources are synchronized to a transaction by a single-phase commit procedures while other resources synchronize by multi-phase commit procedures. The invention invests an application requestor at an application site with authority to represent all single-phase commit resources in multi-phase commit processing.
Patent CA-2121124-A1 (CA)
Title: Communicating thermostat
Inventor: RATZ JAMES W
IPC: G05D23/19
Filed: 1992-12-18
Abstract: A thermostat providing external communication comprising two microprocessors. One microprocessor may be dedicated to the external communication while the other microprocessor runs the application programming. The thermostat is separated into a thermostat housing and subbase. One microprocessor may be located within the thermostat housing with the other located within the subbase. This allows for changing the applications programming through replacement either the housing or the subbase. Replacement of only one portion of the thermostat is cheaper and can be easier.
Patent CA-2123580-A1 (CA)
Inventor: DALE JAMES B
IPC: C07K14/245
Filed: 1993-09-15
Abstract: Recombinant hybrid streptococcal M protein antigens are provided which elicit protective antibodies against Group A streptococci and prevent rheumatic fever. Recombinant hybrid genes which encode the antigen are provided. Vaccine compositions and methods of administering the compositions are provided to elicit immunity against Group A streptococci.
Patent CA-2127407-A1 (CA)
Title: Insertion tool/healing collar/abutment
Inventor: NIZNICK GERALD A
IPC: A61C3/00
Filed: 1994-07-05
Abstract: A healing collar for use with an endosseous dental implant that has an internal-threaded passage and at the top has a multi-sided male projection includes a cylindrical-shaped external surface, a first cavity at one end that has the same number of sides as the male projection atop the implant and a size and shape adapted to fit frictionally or non-frictionally over the male projection. At the other end of the healing collar is an opening leading to a second internal cavity having a plurality of sides adapted to engage a tool suitable for inserting an implant, joined to the healing collar, into a passage formed in the jawbone of a patient formed to receive the implant.  Between the first and second internal cavities is an inwardly-projecting flange that has upper and lower annular surfaces for engaging the head a fixation screw, and the top surface of the implant, respectively.
Patent CA-2134535-A1 (CA)
Title: Method for sterilizing recombinant human serum albumin pharmaceutical preparation
Inventor: OHYA TOMOSHI
IPC: A61K38/17
Filed: 1994-10-27
Abstract: A recombinant human serum albumin (rHSA) pharmaceutical preparation is sterilized by subjecting a pharmaceutical preparation of rHSA obtained by gene manipulation techniques packed in a container in an administration unit to heat treatment at 50 to 80°C for 30 minutes or more. By the disclosed method, rHSA having high safety can be provided since microorganisms contaminated in rHSA pharmaceutical preparations die as a result of the sterilization method of the present invention.
Patent CA-2135169-A1 (CA)
Title: Process for stereospecific hydrolysis of piperidinedione derivatives
Inventor: CURZONS ALAN D
IPC: C07D211/60
Filed: 1993-04-06
Abstract: A process for stereospecifically hydrolysing a mixture of the (+) and (-) isomers of a compound of formula (II), in which R is C1-6 alkyl; using a carboxyl esterase enzyme, (i) to form a compound of formula (IIIA), and thereafter separating the resulting compound of formula (IIIA) from the remaining (-) isomer of formula (II); or (ii) to form a compound of formula (IIIB) and thereafter separating the resulting compound of formula (IIIB) from the remaining (+) isomer of formula (II).
Patent CA-2135701-A1 (CA)
Title: Process for preparing perfluoropolyethers
Inventor: MARCHIONNI GIUSEPPE
IPC: C07C407/00
Filed: 1994-11-14
Abstract: ABSTRACT            "Process for preparing perfluoropolyethers"            Process for preparing peroxidic perfluoropolyethers by oxi-dation of tetrafluoroethylene with oxygen,  in liquid phase comprising a solvent  and in the presence of a chemical ini-tiator,  at a pressure between 2 and 15 absolute atm and operating with a molar ratio of the tetrafluoroethylene to the chemical initiator higher than 35.   The process allows to increase the molecular weight of the perfluoropolyethers at the same content of peroxidic oxygen.
Patent CA-2136003-A1 (CA)
Inventor: LAKELAND KENNETH DONALD
IPC: B22D19/16
Filed: 1993-06-15
Abstract: Rolls for metal shaping have at least a peripheral surface of an iron-based Fe-B or Fe-B-C cast alloy having from 1 to 20 wt% chromium; from 0.5 to 3 wt% boron; up to 1.0 wt% carbon; or higher carbon if substantial amounts of strong carbide forming elements such as Mo, V, Ti, W and Nb are present; optional alloying additions including the Mo, V, Ti, W and Nb and also including Si, Al, Mn, Ni and Cu; and, apart from incidental impurities, a balance of Fe.
Patent CA-2138437-A1 (CA)
Title: Coin rolling device
Inventor: REEVES JOHN L
IPC: G07F11/00
Filed: 1994-12-19
Abstract: Disclosed herein is a coin rolling device comprising a base, the base having a depression and a pair of side walls on opposite sides of the depression,  a pair of coin guide means arranged to lie in the depression in such a manner as to permit a coin rolling paper to be drawn between the side walls and the coin guide means, the coin guide means having mutually exposed faces to form a coin receiving area there between, means for setting the position of the faces thereby to  set the  length  of the  coin receiving area according to the cumulative thickness of a predetermined number of coins to be placed therein.
Patent CA-2140137-A1 (CA)
Title: Aerodynamically shaped probe
Inventor: HEDBERG ERIC A
IPC: G01P5/165
Filed: 1993-07-13
Abstract: The present invention relates to an air data sensing probe that has a cylindrical barrel joined to a contoured strut section.  The strut has leading and trailing edges formed along curved paths, and supports the cylindrical barrel at a position spaced from a mounting surface and facing upstream of relative air movement.  The strut has a rounded leading edge, and is generally ogival-shaped in cross section.  There is a blended, relatively quickly-changing transition section to blend the trailing end of the cylindrical barrel into the ogival-shaped strut section so that the probe has reduced weight of the strut and reduced drag, and through reduction of the cross-sectional area and rounding the strut leading edge, has enhanced anti-icing performance.
Patent CA-2140144-A1 (CA)
Title: Articulated heart pump and method of use
Inventor: BARR IRWIN R
IPC: A61M60/88
Filed: 1993-07-14
Abstract: An articulated, intravascular pump having multiple pump sections (250, 260, 270, 280, 290) linked together for relative motion and driven by a common drive cable (140) is disclosed. Each pump section is relatively short, so that it may easily pass artery.  Disposed in the aortic arch during operation, the pump includes means (135) for selectively directing the discharge blood flow from each pump section to inlets of major arteries branching from the arch.
Patent CA-2141668-A1 (CA)
Title: Method and apparatus for detecting down syndrome by non-invasive maternal blood screening
Inventor: MACRI JAMES N
IPC: G01N33/76
Filed: 1993-08-06
Abstract: The present invention relates to a method for detecting fetal Down syndrome (Trisomy 21), trisomy 13, trisomy 18 and other chromosomal anomalies during prenatal screening by analyzing blood samples from a pregnant woman. More particularly the present invention relates to a method for improving detection efficiency in screening for the anomalies by measuring the amount of the free beta human chorionic gonadotropin (HCG) and nicked or fragmented or aberrant forms of free beta (HCG), all of which are referenced throughout this application as free beta (HCG) in blood samples from pregnant women.
Patent CA-2143336-A1 (CA)
Title: Tissue specific transcriptional regulatory element
Inventor: BREITMAN MARTIN L
IPC: A61P9/12
Filed: 1993-08-25
Abstract: The present invention therefore provides a transcriptional regulatory element which is capable of directing expression of a gene specifically in cells of the endothelial lineage. Preferably, the transcriptional regulatory element comprises the initiation cod-on and the untranslated sequence of tek, a protein tyrosine kinase expressed during murine cardiogenesis and homologues there-of including the human tek gene. The transcriptional regulatory element may be used to target expression of a gene in cells of the endothelial lineage.
Patent CA-2144646-A1 (CA)
Inventor: CHANASYK ALBERT
IPC: B23K1/008
Filed: 1993-09-14
Abstract: An apparatus (10) for soldering a circuit board conveyed therethrough utilizes a combination of forced convection and in-frared radiation. Fans (36, 37) are disposed in each heating zone which force gas through a heating plate (50, 51) which heats the air, emits infrared radiation for heating of the circuit boards, and establishes a gas flow pattern. Flows in each zone are controlled by means of closures (115, 116, 117, 118, 120, 122, 124, 126) which selectively introduce unheated gas and exhaust heated gas from each zone. Gas flow between zones may also be controlled.
Patent CA-2145208-A1 (CA)
Title: Process and device for producing blow-moulded plastic parts
Inventor: BABEL OLAF
IPC: B29C49/04
Filed: 1994-07-28
Abstract: The invention relates to a process for producing blow moulded plastic parts.  The blowing medium used is an inert gas such as nitrogen, which is fed into a deformable preform in a blow mould in order to blow it up and subsequently cool it from within.  According to the invention, the nitrogen introduced as a  blowing  medium  consists  substantially,  and  preferably exclusively, of warm, dry nitrogen which has previously been vaporized during the internal cooling of a blown-up preform, the blow mandrel and blow mould being flushed with warm, dry nitrogen when the latter is open.  The internal cooling is carried out at a higher inlet pressure than that of the blowing-up processes. The invention also relates to a device for implementing the process.
Patent CA-2145520-A1 (CA)
Title: Skating appliance or vehicle with exchangeable running blade
Inventor: WUERTHNER HOLGER
IPC: A63C17/18
Filed: 1993-09-24
Abstract: A skating appliance or vehicle has a skate with a plastic base and a composite running blade exchangeably secured thereto. The exchangeable composite running blade is secured with a high resistance to torsion and flexure, as well as a high security against fracture, by means of an on-edge mounted profiled stabilising rail set into the lower side of the base, and easy-to-handle screwable holding members, and thanks to a corresponding design of the individual parts. These elements allow an arrangement to be obtained which as a whole has a low weight and high resistance to pressure.
Patent CA-2148033-A1 (CA)
Title: Time-base conversion system
Inventor: NAKA HIDEYUKI
IPC: H04N5/14
Filed: 1995-04-27
Abstract: A time-base conversion system including a first clock generator for generating a read clock based on a reference signal, a second clock generator for generating a write clock by dividing the read clock, a memory, a circuit for writing video data in the memory based on the write clock, a circuit for reading the video data recorded in the memory based on the read clock, and a time-base compressor for determining a compression ratio of the video data time-base by determining a division ratio of the write clock.
Patent CA-2149566-A1 (CA)
Inventor: ROYICK ANDREW I
IPC: H04W88/02
Filed: 1995-05-17
Abstract: The device consists of a sewn pouch cover made from leather, vinyl or composite, and contains within itself a piece of lead-graphite or suitable protective material.   This protective device is designed and constructed so as to cover the upper portion of the cellular phone from where the highest levels of radiation are emitted.   Slight variations in design are needed to adapt to the many models of cellular phones available on the market today.
Patent CA-2149861-A1 (CA)
Inventor: ZECCHINO JULES R
IPC: A61K8/00
Filed: 1993-11-22
Abstract: The present invention relates to novel cosmetic preparations for artificially tanning the skin. These novel cosmetics are applied to the skin in a sprayable mist application. These cosmetics are oil and alcohol free and are quick drying. Further, these cosmetic preparations provide an even, deeper and long lasting artificial tan.
Patent CA-2151670-A1 (CA)
Inventor: GREGG DAVID PAUL
IPC: G11B7/258
Filed: 1995-06-13
Abstract: An optical tape cartridge is disclosed that is suitable for playing by an optical tape player.  The tape player provides the cartridge with a voltage supply capable of supplying the optical tape with a relatively high voltage. The tape cartridge includes a sealed cartridge housing and first and second tape reels that are disposed within and freely rotatable in either direction within the housing. The reels act as tape supply and tape take up reels. Also included in the cartridge is an optical tape that has a first surface on an optically recordable side.  The tape is wound on and couples the two reels with a tape segment. The tape segment is positioned with the optically recordable side facing outwardly from each of the reels. The tape includes a conductive layer that extends substantially the length of the optical tape. The conductive layer is grounded at least one end. The housing includes a sealed window positioned on a housing surface that is located across a portion of the tape segment. The window allows optical reading from the segment of optical tape. A conductive guide guides the tape segment past the window. To guide the tape segment in this manner, the guide hasa portion disposed adjacent the window. The conductive guide is connected to therelatively high voltage supplied by the tape player power supply.  The conductive guide maintains the first surface of the tape segment a relatively fixed distance from the window by electrostatically attracting the grounded conductive layer of the tapesegment towards the conductive guide.
Patent CA-2152745-A1 (CA)
Title: Crystal modification of a diketopyrrolopyrrole pigment
Inventor: HAO ZHIMIN
IPC: G03G9/097
Filed: 1995-06-27
Abstract: Diketopyrrolopyrrole of the formula          (I) in its .beta.-modification.   The new .beta.-modification is likewise suitable as a pigment for colouring high-molecular weight organic material and, in comparison to the a-modification, shows a shift in shade towards yellowish-red.
Patent CA-2154166-A1 (CA)
Title: Nonthrombogenic implant surfaces
Inventor: MARCHANT ROGER E
IPC: A61L33/08
Filed: 1993-11-18
Abstract: Triblock polymers comprised of polysaccharide, such as heparin or dextran, and a hydrocarbon chain, have been pre-pared. The triblock polymer adsorbs strongly on the surface of hydrophobic polymer substrates such as polyethylene, through hy-drophobic interaction between the polymer and the hydrophobic hydrocarbon chain of the triblock polymer. The surface ad-sorbed with triblock polymer is resistant to protein deposition, which renders the surface nonthrombogenic.
Patent CA-2154291-A1 (CA)
Inventor: KNOBLE DAVID W
IPC: H01H47/32
Filed: 1995-07-18
Abstract: A control relay circuit and method for controlling a relay having a coil, for use, in particular, in operation of a light fixture circuit having an HID lamp. The relay control circuit has an input for receiving a control voltage signal and a voltage storage element connected across the input. The voltage storage element develops a voltage level as a function of time in response to the control voltage signal. A thyristor circuit, a switching element and the coil of the relay form a series circuit that is connected in parallel to voltage storage element. A switch controller is connected in parallel to the voltage storage element and is also connected to the switching element. In response to the control voltage being received at said input, the switch controller activates the switching element to a conductive state at a first voltage level across the voltage storage element and the thyristor changes from a non-conductive state to a conductive state at a second voltage level across the voltage storage element, the first voltage level being less than the second voltage level. In response to the control voltage being removed from the input, the switch controller activates the switching element to a non-conductive state at a third voltage level across the voltage storage element thereby changing the thyristor from the conductive state to the non-conductive state thereof, the third voltage level being less than the second voltage level. The relay is energized at the second voltage level and is deenergized at the third voltage level.
Patent CA-2157752-A1 (CA)
Inventor: NIKKELS BEN H
IPC: A61B5/15
Filed: 1995-09-07
Abstract: A disposable blood sampling device for slicing a precise incision of predetermined length and depth in the skin of a patient. The device includes a hollow housing having a top surface with an opening, a front surface, a rear surface, and a bottom surface with an elongated slot adapted to contact the skin of the patient. A trigger is slidably disposed in the opening in the top surface of the housing. A single spring, only, is mounted in the housing in a relaxed, unstressed, and unbiased condition when the device is not actuated.      The spring is extended by the trigger when the device is actuated. A cutting blade is coupled to one end of the spring and extends through the elongated slot in the bottom surface of the housing to incise the skin of the patient when the device is actuated. Finally, the device includes a plurality of discrete constraint and restraint elements, positioned in the housing, which collectively form an open guide surface directing the spring, and the blade coupled to the spring, along a predetermined incision path.