baber/WOPTO huggingface dataset:
Patent CA-2088185-A1 (CA)
Title: Two line pilot valve
Inventor: JOHNSON CLARENCE W
IPC: F15B21/04
Filed: 1993-02-05
Abstract: A two line pilot valve used to exhaust hydraulic fluid from a control circuit when the operating conditions within which a flowline is intended to operate are outside of predetermined limits. The pilot exhausts fluid within a control circuit to a reservoir which allows a dump valve to dump fluid from an actuator which causes the actuator to close the flowline. The pilot has a first poppet sleeve which contacts an o-ring. When the poppet sleeve and o-ring separate, fluid is allowed to pass from the inlet port of the pilot to the exit port and thereby exhaust the fluid of the control circuit.
Patent CA-2088676-A1 (CA)
Title: High viscosity bacteria, bacterial compositions, and methods
Inventor: SING WESLEY D
IPC: A23C13/16
Filed: 1991-07-31
Abstract: Described are novel donor bacteria harboring a plasmid DNA fragment from a plasmid 30 MDa in molecular weigh re-ferred to as pHV67 in L. lactis subsp. lactis TC67, the DNA fragment encoding for a substance which increases viscosity of a milk-containing product. The donor bacteria are capable of conjugally transferring the DNA fragment to a lactic acid bacterium at a frequency of at least about 10-5 transconjugants per input donor bacterium. Methods involving the preparation and use of bacteria for novel milk fermentations, for example, buttermilk, sour cream and cottage cheese, are also described.
Patent CA-2089009-A1 (CA)
Inventor: SMITH DORAN D
IPC: H01L31/0352
Filed: 1993-02-08
Abstract: An IR photodetector including an IR semiconductor detector with conductive layers on opposite, parallel surfaces.          A semiconductor substrate supports the semiconductor IR detector.  A circuit is connected across the semiconductor IR detector to provide a bias voltage and for measuring current flow through the semiconductor IR detector.  The semiconductor IR detector has a lattice structure made up of a series of potential wells separated by relatively wide potential barriers such that each well has two confined energy levels.  A thin spike barrier is placed in the center of alternate potential wells to tailor the absorption characteristics of the semiconductor IR detector.  Multicolor operation is achieved by selecting the appropriate well widths for a first group of potential wells that are alternately placed between the wells of the first group.
Patent CA-2089613-A1 (CA)
Title: Dispersion and method for producing same
Inventor: HUNG JOHN H
IPC: D21H19/44
Filed: 1993-02-16
Abstract: IMPROVED DISPERSION AND METHOD      FOR PRODUCING SAME ABSTRACT OF THE INVENTION           Dispersion comprising a maleated rosin ester, a wax, and an emulsification promoter.  The dispersion may further include an ethylene-vinyl acetate copolymer and may be combined with other compounds.  Particularly when used to coat paper the dispersion may be combined with clay and/or latex.  The dispersion has many uses such as for adhesives or coatings for papers and other substrates and, for example, may be utilized to provide a barrier coating for paper.  In one preferred application, the dispersion is applied as a coating to paper to enhance toner adhesion to the surface of the paper and to provide the paper with a low friction surface.
Patent CA-2089851-A1 (CA)
Title: Storage reel and cover
Inventor: TREWHELLA STEPHEN W JR
IPC: B65H75/18
Filed: 1993-02-18
Abstract: ABSTRACT OF THE DISCLOSURE A storage reel embodying the concepts of the present invention is particularly adapted for storing cable that is subjected to creep. The storage reel has a pair of laterally spaced side flanges. Core means extend between the side flanges to define a cable-engaging surface. This cable-engaging surface has a coefficient of friction of at least 0.499. This coefficient virtually precludes creep between the cable and the storage reel. An anchor aperture penetrates at least one of the side flanges to permit one end of the cable to extend therethrough, and a fastening means is employed to secure that end of the cable to the exterior surface on that side flange. The present invention also contemplates the use of a cover structure that may be secured to at least one side flange to contain the cable end that penetrates that flange.
Patent CA-2092742-A1 (CA)
Title: Reagent kit and analyzer suitable for using it
Inventor: KOCH BRUNO
IPC: B01L9/06
Filed: 1993-03-26
Abstract: A reagent kit comprising at least one container holding a reagent, and an analytical apparatus in which the reagent kit can be used. For the purpose of fully automatic processing of the reagent kit in an analytical apparatus, the reagent kit is characterised in that it substantially comprises a cuboid casing (12) having a bottom (13), side walls (14,15, 16, 17) and a removable lid (18) and containers (31, 32, 33) disposed in the casing (12), the lid (18) having openings (21, 22, 23) through which the contents of the reagent containers (31, 32, 33) are accessible for automatic pipetting operations, each reagent container being closed by a closure (34, 35, 36), said closure being apt to be perforated by the needle of the pipetting device of an analytical apparatus, said closure (34, 35, 36) being also apt to reclose the perforation after removal of the pipetting needle.
Patent CA-2093820-A1 (CA)
Title: Infusion package
Inventor: SHAKSPEARE ANTHONY E
IPC: B65D81/00
Filed: 1991-10-10
Abstract: The invention provides an infusion package comprising a closed bag containing an infusible substance for infusion in a liquid, the bag being formed from panels of porous material sealed together at their peripheral margins; and a pair of drawstrings, each of which extends into than interior of the bag through a seal between the panels at a first location on the peripheral margins and extends across the interior of the bag to an anchoring point at a generally opposed location on the peripheral margins without any intermediate interengagement with the said panels of the bag; and wherein each drawstring is anchored by being held between two sealed together portions of the panels, the arrangement being such that pulling the drawstrings in generally opposite directions causes the bag to collapse, thereby to express liquid absorbed by the infusible substance during infusion. The infusion package is preferably a tea bag or coffee bag. The invention also provides a method for the manufacture of the infusion packages.
Patent CA-2094534-A1 (CA)
Title: Water based biocide
Inventor: PATERSON DONALD J
IPC: A01N41/10
Filed: 1993-04-21
Abstract: ABSTRACT         The present invention relates to trihalo alkyl sulfone and mixtures of bis(trichloro methyl) sulfone (BTCMS), a non-ionic surfactant and a cationic quaternary ammonium halide surfactant formulated as a stable solution in water.  The method of formulation comprises adding the BTCMS to an aqueous system containing a nonionic surfactant and a cationic quater-nary ammonium halide surfactant.  These formulations are useful as biocides and present advantages over organic solvent based formulations.
Patent CA-2094838-A1 (CA)
Title: Drawbar Connection
Inventor: DAWSON RICHARD W
IPC: B61G9/24
Filed: 1993-04-26
Abstract: An improved drawbar connection for railroad cars reduces slack between cars and results in improved train handling.  The drawbar connection fits in a standard draft gear pocket and utilizes a standard yoke, standard follower and standard coupler pin, thereby permitting the application of drawbars with minimal structural modification to cars originally equipped with conventional couplers.  The usual draft gear is replaced by a filler which is relatively rigid.  The filler includes a follower block, a wedge, a filler block and may include a mini-draft gear having a maximum travel of about one-half inch.
Patent CA-2096945-A1 (CA)
Title: 2-decarboxyl-2-alkoxyalkyl prostaglandins as ocular hypotensives
Inventor: CHAN MING F
IPC: A61K31/5575
Filed: 1991-12-04
Abstract: The present invention relates to 2-decarboxyl-2-alkoxyalkyl prostaglandins that are potent ocular hypotentives, and are particularly suitable for the management of glaucoma.
Patent CA-2098947-A1 (CA)
Title: Method for hla-dp typing
Inventor: BEGOVICH ANN B
IPC: C12Q1/68
Filed: 1993-06-22
Abstract: Abstract A process for determining an individual's HLA DP genotype from a nucleic acid containing sample obtained from the individual, which process comprises: (a) amplifying a target region of the nucleic acids in the sample under conditions suitable for carrying out a polymerase chain reaction, whereby the target region contains a polymorphic region (variable segment) of an HLA DP gene using a specific primer; (b) mixing the amplified nucleic acids with a panel of sequence specific oligonuclcotide (SSO) probes, wherein each probe is complementary to a variant sequence of a variable segment of an HLA DP gene, under conditions wherein SSO probes bind to said amplified nucleic acids to form stable hybrid duplexes only if they are exactly complementary; and (c) detecting hybrids formed between the amplified nucleic acids and the SSO probes. The invention also relates to the said primers per se, to kits comprising said oligonuclcotide primers and to ligonuclcotide probes useful in HLA-DP DNA typing methods. These HLA-DP DNA typing methods may be useful in the prevention of graft rejection and graft versus host disease, in determining susceptibility to autoimmune diseases, in providing evidence concerning the derivation from an individual of forensic samples, and in paternity testing.
Patent CA-2099374-A1 (CA)
Title: Diagnostic method for detecting the rupture of fetal membranes and test kit employing the method
Inventor: RUTANEN EEVA-MARJA
IPC: G01N33/577
Filed: 1991-12-30
Abstract: A rapid and reliable diagnostic method for detecting the rupture of fetal membranes and a test kit for performing the meth-od. The presence of insulin-like growth factor binding protein 1 (IGFBP-1) resulting from the rupture of fetal membranes is de-tected in a vaginal secretion sample with the aid of a specific binding substance of IGFBP-1.
Patent CA-2102134-A1 (CA)
Inventor: NORDENSKJOELD REINHART VON DR
IPC: C02F3/12
Filed: 1993-11-01
Abstract: The invention relates to a method and a device for purifying waste water in a plurality of sequentially following phases, the waste water (effluent) being aerated in a first phase A, and then being given a preliminary clarification in a second phase B, and then, in a third phase C, secondary aeration and, in a fourth phase D, secondary sedimentation being carried out. Phases with circulation only can be provided directly upstream of the phases, and filtering and storing phases can be provided directly downstream. In order to achieve a simple, space-saving, inexpensive and nevertheless reliable device, carrying out all four purification phases in one tank is provided according to the invention. In order to make possible adaptation to increasing loads and a changing ratio of hydraulic to biochemical load, the partitions between the phases are arranged to be slidable to change their volumes. <IMAGE>
Patent CA-2102567-A1 (CA)
Title: Method of homogenizing the constitution of a web of paper
Inventor: BEGEMANN ULRICH
IPC: D21F1/02
Filed: 1993-11-05
Abstract: METHOD OF HOMOGENIZING THE CONSTITUTION OF A WEB OF PAPER      ABSTRACT OF THE DISCLOSURE         A method of manufacturing a web of fibers, especially a web of paper.  The pulp is uniformly distributed through an outlet over the width of the machine and along a wire or between two wires.  Most of the moisture is subsequently extracted from the pulp accommodated on or between the wires at a draining point.          Various amounts of retaining agents are added to the pulp at sections across the headbox and the web in order to control the level of retention sectionally.
Patent CA-2105757-A1 (CA)
Title: Processor module for video inspection probe
Inventor: WOOD ROBERT J
IPC: G02B23/24
Filed: 1993-09-08
Abstract: Invention:  PROCESSOR MODULE FOR VIDEO INSPECTION PROBE Inventors:  Robert J. Wood, Michael J. Pileski and Gregory E. Pasik Abstract of the Invention:      A plug-in module for a video probe has a housing which contains video processing circuitry to receive a video output from a miniature video imager and produces a video signal suitable to apply, without further processing to a video monitor.  The module plugs into a mating socket of a power and illumination unit.  A fiber optic bundle extends into a sleeve protruding from a proximal face of the module, and is positioned at the focus of a small, high efficacy lamp assembly.  The housing of the plug-in module environmentally seals the electronic circuitry.
Patent CA-2106565-A1 (CA)
Inventor: KATZEN STANLEY J
IPC: C08F110/02
Filed: 1992-03-18
Abstract: Mixed catalyst compositions comprised of a first supported chromium-containing catalyst component and a second supported chromium-containing catalyst component and which additionally have one or more metallic or non-metallic catalytic agents associated therewith are provided. The additional metallic or non-metallic elements associated with the catalyst components can be aluminium, titanium, zirconium, boron, phosphorous or combinations thereof. The pore volume of the silica supports used for the first and second catalyst components differs by at least 0.3 cc/g. The mixed catalyst compositions of the invention are useful for the preparation of polyolefins. They are particularly useful of polymerization of ethylene in particle form polymerizations to produce high density polyethylene blow molding resins having good processability and physical properties. The improved particle form polymerizations process and products obtained thereby using the above-described mixed catalyst compositions are also described.
Patent CA-2111895-A1 (CA)
Title: Heterocyclic compounds
Inventor: WHITTAMORE PAUL R O
IPC: C07D453/02
Filed: 1993-12-20
Abstract: A B S T R A C T                         HETEROCYCLIC COMPOUNDS            Compounds of formula I and their pharmaceutically acceptable   salts in which R1 is hydrogen or hydroxy; R2 is hydrogen; or R1 and R2 are joined together so that CR1-CR2 is a double bond; is selected from -CH2CH2-, -CH=CH-, -C?C-, -CH2O-, -OCH2-, -CH2NH-, -NHCH2-, -CH2CO-, -COCH2-, -N=CH-, -CH=N-, -CH2S- and -SCH2- (wherein the sulphur atom in the latter two groups may optionally bear one or two oxygen atoms); Ar is a heterocyclic moiety containing up to three heteroatoms independently selected from nitrogen, oxygen and sulphur; and wherein Ar may optionally be unsubstituted or may bear one or more substituents independently selected from halogeno, hydroxy, amino, nitro, cyano, carboxy, carbamoyl, alkyl, alkenyl, alkynyl, alkoxy, alkylamino, di-alkylamino, N-alkylcarbamoyl, di-N,N-alkylcarbamoyl, alkoxycarbonyl, alkylthio, alkylsulphinyl, alkylsulphonyl, halogenoalkyl, alkanoylamino, ureido, N'-alkylureido, alkanoyl and oxime derivatives thereof and O-alkyl ethers of said oxime derivatives; are inhibitors of squalene synthase and hence useful in treating medical conditions in which a lowering of cholesterol is beneficial.  Processes preparing these derivatives, pharmaceutical compositions containing them are also described together with their use in medicine.
Patent CA-2111995-A1 (CA)
Title: Turbine pump ring for drilling heads
Inventor: KALSI MANMOHAN S
IPC: E21B33/08
Filed: 1993-12-21
Abstract: ABSTRACT OF THE DISCLOSURE      A drilling head for the controlled operation of the drill string while diverting well fluids from the well.  The drilling head incorporates a kelly drive and at least one stripper rubber which rotate with the drill string extending through the drilling head.   Rotation of the drive bushing and stripper rubber are controlled by bearings disposed  in a bearing chamber of the drilling head through which lubricant is circulated to reduce friction and cool the bearings.  A turbine ring attached to the lock nut ring of the kelly drive circulates lubricant through the bearing  chamber as  it rotates  in association with the drive assembly of the drilling head. The turbine pump ring forces circulation of lubricant as the drive assembly rotates in addition to the circulation by the remove lubricant pump or in the event the remote pump  fails to  operate.   The turbine ring  includes  a plurality of angular slots to force circulation of the lubricant as the drive assembly rotates.
Patent CA-2112383-A1 (CA)
Title: Coextruded medical grade port tubing
Inventor: LO YING-CHENG
IPC: A61M5/14
Filed: 1993-05-12
Abstract: The present invention provides an improved coextruded medical port tubing. The medical port tubing provides characteris-tics that are desirable in the medical industry and therefore can be used as a medical port tubing in, for example, renal therapy or blood donor tubes. To this end, the present invention provides a coextruded medical grade port tubing comprising: an outer layer comprising a blend of polypropylene copolymer and styrene-ethylene-butylene-styrene copolymer; a tie layer; and a core layer comprising polivinyl chloride.
Patent CA-2112411-A1 (CA)
Inventor: BOWERS RODERICK W J
IPC: C09D155/00
Filed: 1992-07-06
Abstract: Polymers of one or more radical polymerisable monomers which polymer has pendant groups bearing a centre of permanent positive charge and other pendant groups capable of stably binding the polymer to a surface are useful in the treatment of surfacts to render them biocompatible. The polymers may contain pendant groups which bind the polymer to a surface by physisorption, covalent bonding or ionic interactions. Additionally reactive groups in the polymer may serve as points for attachment of ligands to the polymer when coated on a surface.
Patent CA-2112587-A1 (CA)
Inventor: CHOPERENA ALFREDO
IPC: G01N35/00
Filed: 1993-05-04
Abstract: The present invention provides an analyzer (10) which permits clinical analysis of samples for multiple analytes with a variety of assay protocols in a multiple chronology sequence while operating on a predetermined fixed length cycle method of timing control.  In this analyzer, assay resources (e.g. an incubator belt (54), a wash station (100), and a signal detection apparatus (140)) are assigned fixed operating sequences which begin and end within a time cycle of fixed duration. Samples may be transferred directly from one assay resource to another without unnecessarily occupying any unused resources. The invention also contemplates a method of analyzing samples consistent with use of this analyzer. In this method, different samples having different assay protocols may be entered into the analyzer. The assay resource requirements of the first sample are determined and "time slots" of the assay resources are allocated to that sample. The second sample, which may have a different assay protocol from the first, is entered and its assay resource requirements are determined, and available time slots of the assay resources are assigned to the second assay.  By assigning "time slots" of the resources to the samples, flexibility and throughput of the system may be maximized without unduly complicating the scheduling logic and control.
Patent CA-2113113-A1 (CA)
Title: Thermotropic liquid crystal segmented block copolymer
Inventor: KANTOR SIMON W
IPC: C08G63/00
Filed: 1992-07-07
Abstract: Novel segmented block copolymers comprising mesogenic (or ''rod'') blocks and flexible coil polymer blocks are disclosed which can be blended with a substantially similar flexible coil polymer matrix to improve the mechanical properties of the flexible coil matrix. For example, blends of poly(butylene terephthalate) (PBT) with a liquid crystalline block copolymer, poly(tetramethylene 4,4'-terephthaloyl-dioxydibenzoate)-b-poly(butylene terephthalate) (LCP-b-PBT) were prepared by precipitation from a common solvent, dried, and melt extruded through a capillary die to produce a monofilament. In all blends, the LCP-b-PBT domains were less than 0.1 µm in size and ultrafinely and uniformly dispersed. Even though the blends were only moderatly elongated into fibrils, interfacial adhesion between the LCP-b-PBT and the pure PBT appeared excellent. The fibers generally have shown that tensile strength and modulus are enhanced with increasing draw ratio, LCP-b-PBT  content and processing temperature.
Patent CA-2114708-A1 (CA)
Title: Field method for determining if adequate corrosion inhibition has been applied to thermally processed cans
Inventor: SOWINSKI MICHAEL P
IPC: G01N17/00
Filed: 1994-02-01
Abstract: ABSTRACT OF THE DISCLOSURE A method for determining the adequacy of corrosion protection programs applied to metal surfaces is disclosed. The method provides a rapid qualitative determination of corrosion detection using inexpensive equipment. Generally, the method encompasses: a) wetting an absorbent patch capable of retaining a liquid corrosive to a metal surface to be tested with such corrosive liquid to obtain a wetted patch; b) contacting at least a portion of a metal surface to be tested with the wetted   patch under corrosive conditions; c) removing the patch from the metal surface; d) comparing the amount of stain present on the surface of the patch with the stain present on the surface of a patch having been applied to a metal surface having been treated with a known effective corrosion prevention treatment and subjected to the same corrosive conditions wherein the efficacy of the corrosion protection treatment can be qualitatively determined. Alternatively, the metal surface exposed when the patch is removed can be examined and compared with the metal surface of a material having been properly treated with a corrosion preventive material.
Patent CA-2114775-A1 (CA)
Inventor: NAKAKAWAJI TAKAYUKI
IPC: G11B5/725
Filed: 1994-02-02
Abstract: A magnetic recording medium comprising a non-magnetic substrate and a magnetic layer and a protective layer which are formed on the non-magnetic substrate in that order, wherein a substance(s) as a single component or a plurality of components, which constitute a liquid continuously supplied to the surface of said protective layer, are adsorbed on or react with the surface of said protective layer to form a lubricating film having low frictional properties and low wearing-out properties. The present invention can realize negligible friction and wear resistance even in severe sliding at a very slightly kept-off or completely contacted state by continuous supply of a liquid lubricant prepared by adding a fluoro compound and an extreme pressure agent ox an oiliness agent to a solvent to the surface of a disc, and can provide a magnetic recording reproducer having excellent sliding-resistant characteristics.
Patent CA-2117746-A1 (CA)
Inventor: VANWELSSENAERS NOEL A
IPC: C11D1/08
Filed: 1993-03-29
Abstract: A process for making a concentrated liquid detergent composition comprising the steps of: i) mixing succinic anhydride, water and an alkaline catalyst, wherein the ratio of succinic anhydride to water is at least 4:1; ii) allowing an exothermic hydrolysis reaction to take place in a buffer tank, and iii) mixing the resulting highly active, partly neutralised succinic acid with other detergent ingredients.
Patent CA-2119375-A1 (CA)
Title: Hemofiltration system and method
Inventor: KITAEVICH YULI
IPC: A61M1/16
Filed: 1992-10-06
Abstract: A multipurpose hemofiltration system (10) and method are disclosed for the removal of fluid and/or soluble waste from the blood of a patient. The system (10) and method are equally applicable to adult, pediatric and neonatal patients. The system (10) continuously monitors the weight of infusate in a first reservoir (50) and drained fluid (76) in a second reservoir (74) and compares those weights to corresponding predetermined computed weights. When necessary, the pumping rates of the infusate (52), drained fluid (76) and blood are adjusted in order to achieve a preselected amount of fluid removal from the patient's blood in a preselected time period. Application of this system (10) and method provide repeatable and highly precise results.