baber/WOPTO huggingface dataset:
Patent CA-2183312-A1 (CA)
Inventor: TENCH D MORGAN
IPC: C25D5/02
Filed: 1996-08-14
Abstract: A photoelectrochemical method and apparatus are disclosed for fabricating electronic circuits.  An electroplating solution is applied to the surface of a reverse biased p-type semiconductor material, such as NiO.  The solution-covered NiO surface is illuminated with a light beam directed by computer aided design data to photoelectrochemically deposit a seed layer of metal in an electronic circuit pattern.  The seed layer may be thickened by further deposition in a plating bath to form metallic circuit traces on the NiO.  If desired, the metallic circuitry may be transferred from the NiO to an alternate substrate having a low dielectric constant.  The porosity of the NiO surface can be adjusted to optimize the metallic circuit adhesion for image retention or ease of transfer.  The metallic traces may also be treated to reduce adhesion of subsequently deposited metal that can be transferred readily.  If sufficient residual metal remains on the NiO surface after circuit transfer, the trace can be rethickened to transfer multiple circuits of the same pattern without reimaging.  An old metallic image can be electro-dissolved by changing the bias of the NiO with respect to the plating bath, thereby erasing the old image so that a new circuit pattern can be formed by photoelectrochemical deposition.  The process can be performed on a rotating cylinder so that electronic circuits can be produced in a continuous process of photoelectrochemical deposition, seed metal thickening, adhesion reduction, circuit transfer, and image erasure that provides advantages in cost, circuit resolution, and environmental protection.
Patent CA-2189743-A1 (CA)
Inventor: MATTHEWS ANTHONY J
IPC: F02C7/06
Filed: 1995-05-04
Abstract: The present invention relates to a bearing compartment (24) for a turbo machine such as a gas turbine engine. The compartment includes a bearing compartment (24), to which is attached, on its front and rear sides, covers (46, 48) that allow for the passage of air through the compartment as well as past the compartment. In particular, the compartment includes a plurality of axially extending and circumferentially spaced apart sealed air cavities (118, 120) surrounding an oil cavity (44) in the compartment; the bearing (26) which supports a shaft (10) extending through the engine is supported by the bearing (26). The compartment also includes a plurality of axially extending and circumferentially buffer air cavities (122, 124) surrounding the sealed air cavities (118, 120), thereby providing additional insulate protection to the oil cavity (44).
Patent CA-2190153-A1 (CA)
Title: Tinting hydrogel materials with vat dyes
Inventor: EVANS JOHN M
IPC: D06P1/00
Filed: 1995-05-26
Abstract: Disclosed are processes for tinting hydrogel materials, such as contact lenses, by dissolving a leuco sulfate ester of a vat dye in a compatible monomer solution, adding an oxidizing initiator to the monomer solution, and oxidizing and polymerizing the monomer solution and dye in the same solution. In one aspect, the oxidation and polymerization are conducted simultaneously whereas in another embodiment the oxidation of the soluble leuco sulfate ester of a vat dye to the insoluble vat dye and polymerization are conducted sequentially in the same reaction medium.
Patent CA-2190972-A1 (CA)
Title: Compositions of transactivating proteins of human immunodeficiency virus
Inventor: GOLDSTEIN GIDEON
IPC: C07K14/16
Filed: 1995-05-16
Abstract: The inventions provides compositions and a novel method of immunization directed against released transactivating proteins of certain target viruses that are taken up by other cells, including particularly HIV and other integrating and chronically infecting viruses.  The method employs TAT immunogens, which are capable of eliciting high titer antibody to the native TAT protein, especially the regions involved in cellular uptake.
Patent CA-2191781-A1 (CA)
Title: Cup holder which can receive and secure cups of various sizes
Inventor: BAUMBUSCH ALFRED H
IPC: A47G23/02
Filed: 1996-11-29
Abstract: A cup holder which can receive and secure a cup, preferably a paper cup which is positioned therein. The inner surface of the side wall of the cup holder has at least one step, preferably a series of steps, which are sized and shaped and positioned to enable the cup holder to receive and secure more than one size of cup. The cup holder in its most preferred application is used to hold paper cups, most preferably paper cups manufactured to contain hot drinks, such as coffee, tea and the like.
Patent CA-2199008-A1 (CA)
Title: Enhanced hydrocarbon lubricants for use with immiscible refrigerants
Inventor: REYES-GAVILAN JOSE L
IPC: C10N40/30
Filed: 1995-08-28
Abstract: Fluid refrigeration compositions comprising a hydrocarbon lubricant, an immiscible refrigerant and an additive capable of reducing the interfacial tension between the hydrocarbon lubricant and refrigerant.
Patent CA-2201703-A1 (CA)
Title: New sequences of hepatitis c virus genotypes and their use as prophylactic, therapeutic and diagnostic agents
Inventor: MAERTENS GEERT
IPC: C12N15/11
Filed: 1995-10-23
Abstract: The present invention relates to new genomic nucleotide sequences and amino acid sequences corresponding to the coding region of these genomes. The invention relates to new HCV types and subtypes sequences which are different from the known HCV types and subtypes sequences. More particularly, the present invention relates to new HCV type 7 sequences, new HCV type 9 sequences, new HCV type 10 and new HCV type 11 sequences. Also, the present invention relates to new HCV type 1 sequences of subtypes 1d, 1e, 1f and 1g;  new HCV type 2 sequences of subtypes 2e, 2f, 2g, 2h, 2i, 2k and 2l; new HCV  type 3 sequences of subtype 3g, new HCV type 4 sequences of subtypes 4k, 4l and 4m; a process for preparing them, and their use for diagnosis, prophylaxis and therapy. More particularly, the present invention provides new type-specific sequences of the Core, the E1 and the NS5 regions of new HCV types 7, 9, 10 and 11, as well as of new variants (subtypes) of HCV types 1, 2, 3 and 4. These new HCV sequences are useful to diagnose the presence of HCV type 1, and/or type 2, and/or type 3, and/or type 4, and/or type 7, and/or type 9, and/or type 10, and/or type 11 genotypes or serotypes in a biological sample.  Moreover, the availability of these new type-specific sequences can increase the overall sensitivity of HCV detection and should also prove to be useful for prophylactic and therapeutic purposes.
Patent CA-2204914-A1 (CA)
Title: High level expression and facile purification of proteins, peptides and conjugates for immunization, purification and detection applications
Inventor: KNUTH MARK W
IPC: C07K19/00
Filed: 1995-11-13
Abstract: A process for producing and purifying peptides and for producing peptide/protein antigens for antibody production is described. The process utilizes fusion proteins and specifically fusion proteins in which the fusion protein carrier segment includes an amino acid sequence at least about 65 amino acids long and in which the amino acid sequence does not contain negative or positive charged side chains of amino acids.
Patent CA-2206767-A1 (CA)
Title: New process for the preparation of sameridine
Inventor: SANDBERG RUNE
IPC: C07D211/64
Filed: 1995-11-29
Abstract: A process for the preparation of sameridine and its pharmaceutically acceptable hydrochloride salt according to the scheme: (II), (III), (IV), (I).
Patent CA-2209978-A1 (CA)
Inventor: SUNDARESAN PRAKASH
IPC: G06F12/00
Filed: 1997-07-08
Abstract: Generalized key indexes enable a first table of a relational database to be indexed using an index key and index conditions, wherein either or both of the index key and index conditions may reference multiple tables of the database or may be an expression using fields of one or more tables other than the first table.  The generalized key indexes directly associate generalized index key values with record identifiers of records of the first table, thus enabling efficient storage and data retrieval.
Patent CA-2211505-A1 (CA)
Title: Setting instance breakpoints in object oriented computer programs
Inventor: MERKS EDUARDUS ANTONIUS THEODO
IPC: G06F11/36
Filed: 1997-07-25
Abstract: A mechanism for setting a conditional breakpoint on all methods called by a specific instance of a class. To set the instance breakpoint, the debugger must first determine all of the methods that can be applied to the object type or class. In an environment in which full debugging information includes the correspondence between virtual function tables and specific classes, and full class hierarchy information, the methods can be located by locating the pointer to the type's virtual function table, and from the virtual function table, locating the specific class in the debugging information. Identifying the specific type permits all of the base classes of the type to be identified in the debugging information, and from the class hierarchy information, all methods for objects of the type can be compiled. The debugger then sets a conditional breakpoint on each method, the condition specifying that the breakpoint should cause program execution to automatically stop only if the method is being called for the particular object or instance for which the instance breakpoint was set. Information gathered at these program suspensions can be used in granular program debugging to locate problems particular to the specific instance.
Patent CA-2212493-A1 (CA)
Title: Method of treating aluminum dross residue
Inventor: YAMAGUCHI KENJI
IPC: C22B7/04
Filed: 1997-08-01
Abstract: In a method of treating an aluminum dross residue by heating the aluminum dross residue within a heating furnace while supplying an oxidizing gas, a pair of electrodes 30, 40 are arranged opposite to each other within a furnace body 1 so that an electric arc is generated between the both to heat the furnace body 1, the furnace body 1 is heated to a prescribed reaction temperature in the state keeping an inert gas atmosphere, the oxidizing gas is supplied into the furnace while rotating the furnace body 1 around its own axis to heat the content, the oxygen concentration in the exhaust gas from the furnace is measured, and the heating treatment is terminated on the basis of the measured value. According to this method, aluminum nitride or the like in an aluminum dross residue can be oxidized and removed with a minimum heating, and exhaust gas can be also minimized.
Patent CA-2213229-A1 (CA)
Inventor: HALAZONETIS THANOS
IPC: A61K38/00
Filed: 1996-02-16
Abstract: The present invention provides peptides and peptidomimetics corresponding to part or to the entirety of the region encompassed by residues 360-386 of human p53, said peptides and peptidomimetics characterized by the ability to activate DNA binding of wild-type p53 and to select tumor-derived p53 mutants.  Pharmaceutical compositions of the compounds of the invention and methods of using these compositions therapeutically are also provided.
Patent CA-2213291-A1 (CA)
Title: Device for removing an implanted endoprosthesis
Inventor: GIANOTTI MARC
IPC: A61F2/06
Filed: 1997-08-18
Abstract: A device comprising a conveying catheter (30) and a compression system (50) which is arranged axially displaceably therein is proposed for removing an endoprosthesis (5) which is implanted in a hollow organ in a living being and is self-expanding in design.  The individual elements of the compression system (50) are designed and arranged relative to one another such that, during an axially orientated relative movement, the endoprosthesis (5) gripped by a gripping system (15) brought into the radially spread gripping position can be tapered roughly in the form of a so-called envelope curve (8) successively radially and can be pulled into the conveying catheter (30) designed as a receiving tube.  The gripping system (15) arranged at the distal end of a tension element (10) can be repeatedly brought into engagement with the implanted endoprosthesis (5) and can be completely released therefrom between engagements.
Patent CA-2214778-A1 (CA)
Title: Process for the production of polymeric microparticles, microparticles that are produced according to this process as well as their use in medical diagnosis
Inventor: ROTHE MATTHIAS
IPC: A61B8/00
Filed: 1996-03-14
Abstract: The invention relates to a process for the production of gaseous microparticles for ultrasonic diagnosis, whose wall material is built up from polyesters of .alpha.-, .beta.- or .gamma.-hydroxycarboxylic acids, particles that are produced according to this process, as well as their use in medical diagnosis.
Patent CA-2214906-A1 (CA)
Title: Mass transfer imaging media and methods of making and using the same
Inventor: ELLIS ERNEST W
IPC: B41M5/382
Filed: 1996-04-12
Abstract: There are disclosed an improved imaging assembly comprising donor and receptor elements, as well as a method of making and using the same, wherein the donor may be made of a laser addressable mass transfer imaging material; and the imaging assembly includes an air-tight enclosure.
Patent CA-2215861-A1 (CA)
Title: Thermoelectric alloy and method of manufacturing the same
IPC: C22C12/00
Filed: 1997-09-19
Abstract: An n-type thermoelectric alloy from the (Bi2Te3)-(Sb2Te3)-(SbSe3) psuedo-ternary alloy system with the elements Bi and Sb present in an atomic ratio of 21-35:5-19. The n-type alloy has a figure of merit of approximately Z=3.4x 10 -3/K and can be used to create a thermoelectric device which achieves a maximum temperature difference .DELTA.T of 79.2K between the hot and cold junctions of the device. The alloy is grown from the melt into a single crystal using, for example, a vertical Bridgman furnace. The thermoelectric device includes a p-type material and the new n-type material with ohmic contacts placed between the materials and on each end of the device. The ohmic contacts include the elements Bi, Sn, and Sb. In addition, a layer of Ni is applied between the material and the ohmic contact.
Patent CA-2219334-A1 (CA)
Title: Process for preparing a chlorine-dioxide-containing disinfectant solution for water treatment
Inventor: KUEKE FRITZ
IPC: C02F1/72
Filed: 1996-04-24
Abstract: The present process proceeds from an aqueous reaction solution containing a chlorite and a halogen-free oxidizing agent which is present in an excess of up to double the required stoechiometric amount. The pH of the reaction solution is set at between 5.5 and 9.5, preferably between 6 and 9, and the reaction solution is reacted at ambient temperature until almost all the chlorite has been converted into chlorine dioxide. In this way a chlorine dioxide-containing solution is obtained which is free not only from residual chlorite but also from chlorate and other undesirable by-products and can be used directly as such in water treatment. Preferably an aqueous chlorite solution with a pH of more than 9.5 and an aqueous solution of the oxidizing agent are mixed with one another in order to produce the reaction solution, the pH of the aqueous reaction mixture being adjusted by means of a proton donor present in the oxidizing agent solution. In this way a two-component reaction product is advantageously obtained which need only be mixed in a predetermined ratio in order to produce a fresh chlorate-free chlorine dioxide solution. It is further advantageous to add to the aqueous chlorite solution or aqueous oxidizing agent solution a buffer substance which forms a buffer system which is active between pH 5.5 and pH 9.5 in the reaction mixture, thus further stabilizing the pH set. The preferred presence of at least catalytic amounts of silver ions or ions of other transition metals in the reaction solution has a positive effect on the conversion of chlorite ions into chlorine dioxide.
Patent CA-2219540-A1 (CA)
Title: The preparation of cyclic acetals or ketals
Inventor: HAEBERLE KARL
IPC: C07D317/20
Filed: 1997-11-14
Abstract: Cyclic acetals or ketals are prepared by reacting a polyol with the appropriate aldehydes or ketones, with part of the aldehyde or ketone being distilled out during the reaction.
Patent CA-2221677-A1 (CA)
Title: Bipolar electric coagulating and dissecting tweezers
Inventor: HIRAKAWA WATARU
IPC: A61M1/00
Filed: 1997-11-20
Abstract: A grooved channel serving as perfusion leading structure is formed between the opening of a perfusion tube at its front end and the bipolar electric coagulating and dissecting portions at the front ends of arms.
Patent CA-2222291-A1 (CA)
Inventor: JUNE DAVID R
IPC: E21B33/04
Filed: 1997-11-26
Abstract: Wellhead completion apparatus includes a wellhead member (11) having an upper supporting shoulder (24) and a lower landing shoulder (26). A running tool (30) is releasably connected to a tubing hanger (36) for lowering and landing the tubing hanger (36) on the wellhead member (11). A fluid coupling (66,68,70) is provided between the running tool (30) and the tubing hanger (36). Another fluid coupling (17,60,84) is provided between the tubing hanger (36) and the wellhead member (11). The running tool (30) has a body (31) connected to the tubing hanger (36) and an outer sleeve (46) of the running tool (30) is adapted for initial seating on upper supporting shoulder (24) of the wellhead member (11). After the initial seating of sleeve (46) on upper supporting shoulder (24), running tool (30) and tubing hanger (36) are moved downwardly relative to external sleeve (46) for landing of the tubing hanger (36) onto the lower landing shoulder (26) of the wellhead member (11). Hydraulic fluid is provided from the running tool (30) to the tubing hanger (36) during lowering of the tubing hanger (36) as shown in Figure 5. Upon downward movement of tubing hanger (36) after the seating of running tool sleeve (46) on upper supporting shoulder (24) the supply of fluid is transferred from the tubing hanger (30) to the wellhead member (11) as shown in Figure 6. The auxiliary control fluid passage (62) to the running tool (30) is blocked by the wellhead ring (17) defining the lower landing shoulder (26). An embodiment shown in Figures 7-9 permits a wellhead ring (17A) which is secured to the wellhead member (11A) to be sealed by O-rings (76A, 78A) along planar surfaces (13A, 75A) about the control fluid passage (22A) in the wellhead member (11A).
Patent CA-2224140-A1 (CA)
Inventor: MOSTER VINCENT M
IPC: A01D45/02
Filed: 1997-12-09
Abstract: A row crop header for a harvesting machine includes a frame, a first row unit supported by the frame, a second row unit supported by the frame adjacent the first row unit and a multiple row conveyor between the first row unit and the second row unit for conveying crops from the first and second row units.
Patent CA-2225689-A1 (CA)
Inventor: HEARN GRAHAM LESLIE
IPC: A01M1/14
Filed: 1996-06-27
Abstract: An insect trap device comprising a housing having an interior which is in communication with the atmosphere outside the device, the housing containing: (i) an insect attractant source; (ii) means for generating an ion wind to facilitate dispersal of the insect attractant source into the atmosphere outside the housing; and (iii) insect retaining means.
Patent CA-2227352-A1 (CA)
Title: Fleece sock
Inventor: JACKSON OKSU SIN
IPC: A41B11/00
Filed: 1998-01-16
Abstract: A fleece sock is made from a first blank of fleece material of a length and width to cover the foot and to encompass at least part of the ankle of a wearer, the blank having an arcuate cut-out in each side thereof in the region to be occupied by the heel of the wearer and being folded in half to align the cutouts, and a second, generally circular blank of fleece material formed into a separate heel cup having arcuate marginal edges. The marginal edges of the heel cup are aligned with and secured to the marginal edges of the arcuate cut-outs in the first blank, and the remaining marginal edges of the first blank are secured to one another to form a seam that extends along one side of the foot and ankle of the wearer. The two blanks as thus secured together form a sock with seamless plantar and dorsal surfaces, a seamless side surface, a fitted heel cup and at least a partial ankle encompassing portion. The heel cup mitigates creeping of the sock down over the heel of the wearer and balling of the sock under the wearer's foot. The sock fits comformably to the wearer's foot and has large seamless areas and minimal stitching to insure wearer comfort.
Patent CA-2228831-A1 (CA)
Title: Optical transmission system
Inventor: EPWORTH RICHARD EDWARD
IPC: H04B10/08
Filed: 1998-02-04
Abstract: An Optical Transmission System includes a monitor for outputting monitored data representative of the extent to which an optical signal is degraded by polarization mode dispersion. The monitor measures the degree of depolarization present in a sample of the optical signal derived from an optical tap, the depolarization being associated with polarization variation at the bit rate frequency of a signal data stream carried by the optical signal. The monitored data is used to control operation of the system to reroute the optical path taken by the optical signal in the event of a threshold level of polarization mode dispersion being exceeded. A transmitter of the optical signal may also be controlled to minimize polarization mode dispersion by varying the polarization state of the optical signal at launch so as to reduce the measured monitor data. The monitor functions during normal transmission of optical signals without the need for shutting down links of the system for measurement purposes. The invention has particular application to long haul optical transmissions of data streams at 10 Gb/sec or more.
Patent CA-2228967-A1 (CA)
Inventor: CHIOU SHANG-JAW
IPC: C04B24/26
Filed: 1998-02-03
Abstract: Polymer emulsions and polymers therefrom are provided. The polymer emulsions are suitable for spray-drying to form spray-dried polymers. These spray-dried polymers are readily redispersible in water.
Patent CA-2232033-A1 (CA)
Title: Pneumococcal genes, portions thereof, expression products therefrom, and uses of such genes, portions and products
Inventor: BROOKS-WALTER ALEXIS
IPC: C12Q1/68
Filed: 1996-09-16
Abstract: The present invention relates to pneumococcal genes, portions thereof, expression products therefrom and uses of such genes, portions and products; especially to genes of Streptococcus pneumoniae, e.g., the gene encoding pneumococcal surface protein A (PspA), i.e., the pspA gene, the gene encoding pneumococcal surface protein A-like proteins, such as pspA-like genes, e.g., the gene encoding pneumococcal surface protein C (PspC), i.e., the pspC gene, portions of such genes, expression products therefrom, and the uses of such genes, portions thereof and expression products therefrom.
Patent CA-2233459-A1 (CA)
Inventor: KULISH JOHN S
IPC: A01M23/24
Filed: 1998-03-27
Abstract: The present invention includes improvements  to a rotating frame trap which makes  the trap more species specific and provides a more  humane  kill  of targeted  species. These   improvements include means of trigger tensioning, latch adjustment  for hair trigger firing,  a recessed  trigger design, multiple latches, a square  notch  latch  coupled  with  a  flat  jaw  wire,  a pan attachment  on  a   trigger,   and  a  one directional firing mechansim.