baber/WOPTO huggingface dataset:
Patent CA-2168156-A1 (CA)
Title: Kit for immunologically assaying biological substance and assay process
Inventor: TAKAHASHI YOJI
IPC: G01N33/58
Filed: 1996-01-26
Abstract: An immunoassay kit and an immunoassay process are provided that enables a convenient assay of a biological substance without inducing prozone phenomenon.  The immunoassay kit comprises at least magnetic particles (A) immobilized with a substance that immunologically binds to the analyte substance; and non-magnetic particles (B) immobilized with the analyte substance.  The immunoassay kit may further comprise magnetic particles (C) immobilized with a substance that immunologically binds to an assay interfering substance in the sample.  The immunoassay process of the present invention is carried out by reacting the sample with the particles (A) and (C), and with the particles (B); collecting the magnetic particles that failed to react and that are in the form of immunocomplexes; and measuring absorbance of the non-magnetic particles remaining in the reaction solution.  The analyte in the sample is quantitatively determined by referring to the calibration curve that has been prepared by using the standard samples of the analyte substance.
Patent CA-2169032-A1 (CA)
Title: Panel attachment system
Inventor: HULTMAN BRYAN E
IPC: F16B5/06
Filed: 1996-02-07
Abstract: A fastener assembly and method for attaching a first member to a second member. The fastener assembly includes a socket member which defines a socket and a stud which includes a head engagable with the socket of the socket member. The stud is attached to a first member and the nut is attached to a second member. The assembly is initially attached to the first member by attaching the stud to the first member and then inserting the nut into the second member. When the first member must be removed from the second member, the head of the stud is forcibly disengaged from the socket of the socket member. Reattachment of the first member the second member is achieved by forcibly engaging the head with the socket. After the initial insertion, the socket member remains captively retained on the second member.
Patent CA-2169291-A1 (CA)
Inventor: ANDERSON MARK BRIAN
IPC: C07D211/60
Filed: 1994-08-04
Abstract: La présente invention concerne en général le domaine de la chimie médicale, et plus spécifiquement des dériviés d'une sous-classe d'acides triterpénoïdes qui ont des propriétés mutimédicamenteuses, à savoir des dérivés du lupane, l'acide bétulinique, des préparations contenant lesdites substances et leur utilisation pour prévenir ou traiter certaines maladies, et de préférence des dérivés ou analogues de l'acide bétulinique de formule structurale suivante (1) dans laquelle Y représente OR<1>, NR<1>2, O<->M<1>; R<1> représente H, alkyle inférieur; M<1> représente des ions Na<+>, K<+>, Mg<++>, Ca<++>; chaque R<2> représente indépendamment CH2OR1 ou CH3; chaque R<3> représente indépendamment H, CH3, alkyle inférieur, COY, CH2OH, CH2OCH2CH=CH2, CH2OSO3<->M<1>; chaque Z représente indépendamment NHR<1>2, NR<1>Ac, NR<1>Bz, H, OCH3, alkyle inférieur, OH, OSO3<->M<1>, OCH2CH=CH2, OCH2CO2H ou O-glucoside; chaque X représente indépendamment O, S, NR<1> ou NR2<1>, chaque W représente indépendamment C=O, C=CR<1>2, CR<1>CR<1>3, CR<1>-CR<1>2OR<1>, COR<1>-CR<1>OR<1>, COR<1>CR<1>2OR<1>, CR<1>CR<1>2NR<1>2, CR<1>CR<1>2OCR<1>COY, CHR<4>; R<4> représente H, OH, OSO3<->M<1>, ou NH(CH2)nNH2, où n=1-8, ou NH-Ph-NH2 où Ph représente un cycle phényle ou naphtyle substitué par jusqu'à 3 fonctionnalités amine, les substitutions restantes pouvant être H, R<1>, R<2> ou COY; R<5> et R<6> représentent indépendamment H, CH3, ou pris ensemble forment un cycle carbocyclique à 5 ou 6 éléments.
Patent CA-2169579-A1 (CA)
Title: Thermal insulation for p-trap piping
Inventor: TRUEB STEVEN R
IPC: F16L59/22
Filed: 1996-02-15
Abstract: Pieces of thermal insulating molded rubber are configured to conform to under-sink piping, so as to provide protection against burn injury from contact with hot surfaces.  The pieces are telescopically and interengaged with one another at select-ed relative orientations, to cooperatively enclose a P-trap as-sembly, and the piece covering the J-bend is formed with a protrusion to accommodate clean-out structure provided thereon.
Patent CA-2169683-A1 (CA)
Title: Process for the enzymatic acylation of alcohols with alkoxyvinyl acetates by transesterification
Inventor: SCHUDOK MANFRED
IPC: C12P41/00
Filed: 1996-02-16
Abstract: The invention relates to a process for the enzymatic acylation of primary and secondary alcohols with enol esters,  in particular alkoxyvinyl acetates, in organic media, in which the enol ester is cleaved into a single ester which is  formed after enolization and an acyl radical; the latter is transferred to the alcohol in the solution,  the transfer proceding enantioselectively in racemic or prochiral alcohols, i.e. selective acylation only of the one enantiomer or pro-enantiomer takes place, leaving behind the free alcohol of the other enantiomer or pro-enantiomer.  The chiral  acylated compounds  and unreacted chiral  alcohols  can be  separated  from one another  in  a  simple manner.  The  corresponding  free alcohols can, if desired, be obtained from the acylated alcohols by simple ester cleavage.
Patent CA-2171004-A1 (CA)
Inventor: WILLIAMSON DON
IPC: C09K8/38
Filed: 1995-08-04
Abstract: The present invention is directed to an aqueous foamed drilling fluid for drilling well bores into a subterranean formation, comprising water, at least one clay and at least one foaming agent. According to the invention, it further comprises at least one metal hydroxide. The invention further relates to a method for preparing said foamed drilling fluid.
Patent CA-2171428-A1 (CA)
Title: Copolymers and their reaction products with amines suitable as fuel and lubricant additives
Inventor: GUENTHER WOLFGANG
IPC: C08F210/14
Filed: 1994-09-06
Abstract: Copolymers I carrying functional groups and comprising a)  20-60 mol% of at least one monoethylenically unsaturated C4-C6-dicarboxylic acid or an anhydride thereof, b)  10-70 mol% of at least one oligomer of propene or of a branched 1-olefin of 4 to 10 carbon atoms, having an average molecular weight Mw of from 300 to 5000, and c)  1-50 mol% of at least one monoethylenically unsaturated com-pound which is copolymerizable with the monomers a) and b), a process for their preparation, oil-soluble reaction products obtainable therefrom by reaction with an amine and the use of said reaction products as additives for lubricants and fuels.
Patent CA-2173061-A1 (CA)
Inventor: ADAIR HENRY HAROLD JR
IPC: G08C17/02
Filed: 1996-03-29
Abstract: A method and apparatus for transmitting data from a monitoring station using frequency hopping and interval hopping as described. The output frequency of a transmitter in the monitoring station is hopped between selected output frequencies by retrieving random numbers from a table, generating a control voltage corresponding to the retrieved random number, applying the control voltage to an RF oscillator and transmitting a signal from a transmitter in the monitoring station using the signal from the RF oscillator as a carrier. The output frequency of the transmitter is limited between a maximum output frequency and a minimum output frequency by comparing the retrieved random number to data limits stored in a memory in the transmitter and rejecting retrieved random numbers outside of the retrieved limits. Interval hopping is realized by selecting a random number from the random number table, multiplying the random number by a fixed increment and adding the product to a minimum time interval.
Patent CA-2175018-A1 (CA)
Inventor: REBEAUD JEAN-CLAUDE
IPC: B65H3/00
Filed: 1996-04-25
Abstract: The  arrangement  for  loading  metallized  belts  (37) comprises a pair of parallel  arms  (50)  rotationally mounted respectively between each of the two lateral walls  of  the  last  station  (10)  of  a  machine  for transferring metallized images onto sheet elements. These arms are connected to one another by crossbeams (60), each of which is suited to accept a support lever (66) for small-diameter bobbins (36). Each arm (50) presents a base plate (51, 52, 53) for a traversing axle (34) that supports large-diameter bobbins  (30). The arrangement also comprises means for the rotational driving (70-77) of the pair of arms (50) from a retracted position in the machine to an extended position (50') in which the pair of arms  (50)  projects at least partially beyond the downstream surface of the machine.
Patent CA-2175650-A1 (CA)
Title: Concentric aspheric multifocal lens designs
Inventor: ROFFMAN JEFFREY H
IPC: G02B3/08
Filed: 1996-05-02
Abstract: Concentric aspheric multifocal lens designs are disclosed which use a combination of an aspheric front surface, which results in aberration reduction and contrast vision enhancement, along with a concentric multifocal back surface, to produce a lens design which affords clear vision at a distance and also near without a loss in contrast which is generally typical of prior art simultaneous vision, concentric multifocal lens designs.  The aspheric surface improves the modulation transfer function (MTF) of the lens eye combination which improves the focus and contrast of both distance and near images. The design form is valid for contact lenses and intraocular lenses.
Patent CA-2176420-A1 (CA)
Title: Distributed differential coupling combined power system
Inventor: YANG TAI-HER
IPC: B60K6/26
Filed: 1996-05-13
Abstract: A combined power system includes a rotational power source such as an internal combustion engine, the output shaft of which is arranged to drive a front section load and which is also coupled to the input shaft of an electromagnetic coupling device to drive a rear section load. The electromagnetic coupling device is controlled by an operating device to generate motor driving functions, when an input current is applied or to generate variable speed coupling functions through an output current when the electromagnetic coupling device is employed as a generator. The engine can be operated at constant speed or at a partially adjustable speed to maximize engine efficiency and reduce pollution, with one part of the differential speed output power generated throughout the differential mixing drive device being used for driving the load while the remainder of the power is converted through the generator function of the electromagnetic coupling device to charge the battery and thereby increase energy efficiency.
Patent CA-2176569-A1 (CA)
Title: Making quantum dot particles of uniform size
Inventor: DOBSON JAMES PETER
IPC: C01B21/06
Filed: 1994-11-15
Abstract: Quantum dots or zero dimensional crystallites of a metal or metal compound are made by a method of providing a solution in an evaporable solvent at a predetermined concentration of a chosen metal and forming droplets of the solution of a substantially uniform predetermined size. The droplets are thereafter brought into contact with a gas phase reagent thereby forming the metal or metal compound quantum dots desired. The solvent may be removed before, during or after the contacting of the droplets with the gas phase reagent. The metal or metal compound quantum dots so formed are deposited on a substrate. The quantum dots may be contained within a polymer as a film. By control of the concentration of the solution and the size of the droplets the size of the quantum dots may be closely controlled.
Patent CA-2176704-A1 (CA)
Inventor: ZEIGLER THEODORE R
IPC: E04H15/50
Filed: 1994-11-10
Abstract: L'invention a pour objet un abri expansible et pliant formé par une série de modules expansibles et pliants reliés les uns aux autres. Chaque module est formé par des paires de contrefiches reliées les unes aux autres et fixées sur pivot, à leur extrémité, à des ensembles à moyeu pourvus de parties internes et externes pouvant être engagées et désengagées. Un premier élément limite le mouvement relatif des parties externes des ensembles à moyeu et un second élément amovible limite de façon non fixe le mouvement relatif des parties internes des ensembles à moyeu, ce qui permet de placer une paire de contrefiches dans un rapport angulaire souhaité.
Patent CA-2181462-A1 (CA)
Title: Separator float for blood collection tubes
Inventor: COLEMAN CHARLES M
IPC: B01D17/038
Filed: 1995-12-13
Abstract: A separator float (40) has a generally cylindrical body (44) and a water swellable material (45) fitted around at least a portion of the generally cylindrical body. Upon being exposed to water the water swellable material (45) swells to form a seal within the tube (30) or other vessel containing the seperator float (40). The separator float (40) is preferably used in a blood collection tube (30) and has a specific gravity between specific gravities of a light phase and a heavy phase of the blood. After the blood has been collected and centrifuged the separator float (40) moves to a position between the light phase and the heavy phase and the water swellable material (45) is exposed to water in the blood causing the material to swell and create a seal. Thereafter, the serum or plasma as well as white blood cells, lymphocytes, monocytes and platelets can be removed from the blood collection tube (30).
Patent CA-2182206-A1 (CA)
Inventor: HASELTINE WILLIAM A
IPC: A61K38/00
Filed: 1995-01-25
Abstract: The present invention discloses three human DNA repair proteins and DNA (RNA) encoding such proteins and a procedure for producing such proteins by recombinant techniques. One of the human DNA repair proteins, hMLH1, has been mapped to chromosome 3 while hMLH2 has been mapped to chromosome 2 and hMLH3 has been mapped to chromosome 7. The invention provides methods to diagnose alterations in the hMLH1, hMLH2 and hMLH3 genes.
Patent CA-2184824-A1 (CA)
Title: Bradykinin antagonist peptides incorporating n-substituted glycines
Inventor: GOODFELLOW VAL S
IPC: A61P31/04
Filed: 1995-03-07
Abstract: The present invention provides bradykinin type peptides containing N-substituted glycines, particularly bradykinin antagonist peptides useful for the treatment of conditions mediated by bradykinin including pain and inflammation.
Patent CA-2185286-A1 (CA)
Title: Reusable collapsible container
Inventor: UITZ MARK O
IPC: B65D6/22
Filed: 1996-09-11
Abstract: A reusable plastic container and a method of cleaning and sterilizing the same is described.  The plastic container can be collapsed for transportation and sterilization when not in use.  The container includes structural end frames which are made from the same material from which the remainder of the container is made.  A band can be used when it is in its erected position to hold the same in such position.  When collapsed, a container is flat and all parts of the same are exposed for easy washing and sterilization.
Patent CA-2188705-A1 (CA)
Inventor: NAKASO NORITAKA
IPC: G01N29/24
Filed: 1996-10-24
Abstract: In a method and an apparatus for exciting acoustic waves, the surface of an object is irradiated with coherent parallel energy beams and coherent focusing energy beams which have different frequencies in such a manner that they overlap each other to generate inter-ference fringes (concentric circles) propagating from outside to the inside at propagation speed which is higher than a specific acoustic speed of the object.          The acoustic waves are excited in accordance with distortion distribution generated in the surface of the object attributable to the photo-thermal effect of the interference fringes, the acoustic waves being focused to a small region in the object, the position of which is determined by the specific acoustic speed of the object and the propagation speed of the interference fringes.
Patent CA-2190438-A1 (CA)
Inventor: GEISSLER STEVEN J
IPC: H02M1/00
Filed: 1996-11-15
Abstract: A welding power supply that includes a series resonant converter, including at least one switch and at least one capacitor is disclosed.  The converter includes a switching circuit including an enable input.  A voltage sensing circuit that determines the earliest safe switching time of the switch is provided.  The safe switching time is the time that will prevent a peak voltage on the capacitor from exceeding a predetermined threshold for a next cycle of the converter.  The voltage sensing circuit provides an enable signal to the enable input when the earliest switching time has passed, to enable the switching circuit. A pair of welding output terminals connected to the series resonant converter receives the output.  A controller including a curve shaper, for providing a constant current output in the welding range is also disclosed.  The controller also provides an adaptive hot start that provides varying amounts of energy in response to the welders skill.
Patent CA-2190939-A1 (CA)
Title: Proximity detector
Inventor: COVELEY MICHAEL
IPC: H03K17/955
Filed: 1995-05-23
Abstract: A non-contact capacitive proximity detector (8) includes a sensing plate (10) and detection circuitry (12) electrically coupled to the sensing plate. The detection circuitry comprises an oscillator (14) electrically connected to the sensing plate (10) and signal conditioning circuitry (16) electrically connected to the oscillator. The signal conditioning circuitry (16) includes a coupling capacitor C1, an envelope demodulator (18), a first comparator (20), a delay circuit (22) and a second comparator (24). When an object is within a predetermined proximity to the sensing plate (10), the capacitance of the capacitor constituted by the sensing plate and the proximal object is at a level which causes the oscillator (14) to generate an oscillating signal having a sufficient magnitude. The oscillating signal generated by the oscillator is applied to the envelope demodulator by way of the coupling capacitor. The envelope demodulator generates an envelope of the oscillating signal and applies the envelope to the first comparator. The first comparator in turn generates a logic high output which is fed to the delay circuit. The delay circuit in turn passes the logic high output to the second comparator after a predetermined amount of time has elapsed causing the second comparator to generate a logic high output representative of the presence of an object within a predetermined proximity to the sensing plate. When the object is removed from the sensing plate outside the predetermined proximity, the output of the proximity detector changes allowing the proximity detector to serve as a removal detector.
Patent CA-2191233-A1 (CA)
Title: Method for testing for mutations in dna from a patient sample
Inventor: STEVENS JOHN K
IPC: C12Q1/6886
Filed: 1995-07-07
Abstract: A hierarchy of at least two assay techniques is utilized in testing for disease-associated mutations. The first assay in the hierarchy is selected to provide a highly specific test for the existence of the disease-associated mutation, although the accuracy of the test need not be high. The final assay in the hierarchy is selected to provide a highly accurate and highly specific test for the existence of the disease associated mutation. Intermediate tests of progressively greater accuracy may also be included in the hierarchy. Once the hierarchy has been selected for a given mutation-associated disease, a patient sample is analyzed, the patient sample using the first, lowest accuracy assay in the hierarchy. If the result of the first assay is negative for the presence of a disease-associated mutation, then the next assay in the hierarchy is performed. This process is repeated until the final assay has been performed on all samples which gave negative results when tested by all less-acurate assays in the hierarchy. The test may be used for diagnosis and targeted screening for p53 mutations and mutations in the RB1 gene.
Patent CA-2193472-A1 (CA)
Title: Method and device for directly feeding liquid metal from a ladle into an electric furnace
Inventor: KAELL NORBERT
IPC: C21C5/52
Filed: 1995-03-21
Abstract: A method and a device for directly feeding liquid metal into an electric furnace. A carriage carrying a ladle filled with molten metal is moved forward into a starting position adjacent the electric furnace then lowered and horizontally translated until the upper rim of the ladle is located over the electric furnace. The ladle is then tipped and gradually raised and translated to keep the upper ladle rim in a position in which the liquid metal can be poured into the furnace. The ladle is tilted back, lowered and horizontally translated to return it to the starting position.
Patent CA-2197852-A1 (CA)
Inventor: MCCARTHY RICHARD O
IPC: A41D13/00
Filed: 1997-02-18
Abstract: A surgical suit includes a hood fitted loosely about the user's head and a gown fitted loosely about the user's body.  The hood has a large visor through which the user can see.  A housing is spaced above the user's head and underneath the hood.   The housing carries a substantial portion of the weight of the hood.          The  housing  is  supported above  the user's  head by means  of vertically extending support rods that are connected to a backpack.   A  fan  is  disposed  in  the  housing,  as  well  as  an  optional thermoelectric module.  An exhaust fan is included as part of the backpack.  The fan in the housing causes air to be drawn through a filter and then flowed past the user's face.   The fan in the backpack causes air to be drawn downwardly from around the user's upper body and exhausted from the gown through a filter.
Patent CA-2198720-A1 (CA)
Title: Coating, coating composition and method of forming coating
Inventor: GRIFFIN MARY CATHERINE AMBROSE
IPC: C09D4/00
Filed: 1995-08-30
Abstract: A coating on a substrate which endows the substrate with a desired surface property, the coating comprising a cross-linked polysiloxane containing X'- and X- groups attached to different Si atoms wherein the groups X'- are monovalent organic groups which provide the desired surface property and the groups X- are monovalent organic groups which are reactive with a group on the substrate surface and have a higher surface tension than the groups X'-, said coating being bonded to said substrate by reaction of X- groups with substrate surface groups reactive therewith. In one embodiment a non-wetting coating is provided wherein the X'-group has the formula CF3Z- where Z is a divalent organic group or the formula CH3(CH2)t where t is at least 3.
Patent CA-2199109-A1 (CA)
Title: Synthetic chalcoalumite compounds and process for producing thereof
Inventor: SHIMIZU KANAKO
IPC: C01F11/18
Filed: 1997-03-04
Abstract: A synthetic chalcoalumite compound represented by the formula (1) (Zn a-x2+M x2+)A1 4 3+(OH)b(A n-)c.cndot.mH2O (1) wherein M2+ represents at least one of Cu, Ni, Co and Mg; a represents 0.3< a< 2.0; x represents 0~ x< 1.0; b represents 10< b< 14;      A n- represents one or two selected from SO4 2-, HPO4 2-, CO3 2-, CrO4 2-, SiO3 2-, SO3 2-, NO3-, OH- and Cl-; c represents 0.4< c< 2.0 and m represents a number of 1 to 4, and a process for the production thereof. The synthetic chalcoalumite compounds of the invention are colourless, low in toxicity and are comparatively inexpensive to natural chalcoalumite compounds, and are useful as infrared absorbers for agricultural films, heat stabilizers of PVC, ink jet recording media, neutralizers and inactivators of acidic substances in resins or rubbers, for removal of phosphate and chromate ions in industrial waste, for carrying dies or antibacterial substances thereon, and deodorants.