baber/WOPTO huggingface dataset:
Patent CA-1277415-C (CA)
Title: Elastomer membrane enhanced electrostatic transducer
Inventor: WHITEHEAD LORNE A
IPC: H04R19/00
Filed: 1986-04-11
Granted: 1990-12-04
Abstract: ELASTOMER MEMBRANE ENCHANCED ELECTROSTATIC TRANSDUCER     ABSTRACT OF THE DISCLOSURE     A transducer having opposed first and second conductive plates for application of an electrical potential difference therebetween.  An elastomeric dielectric material such as neoprene rubber is disposed between the plates and in contact therewith.  The dielectric material has a plurality of pockets of ap-proximate average depth "d" such that, for a given gas maintained within the pockets at a pressure "P", the product Pd is significantly less than the value required to achieve the minimum breakdown voltage for the gas in the pockets.     Alternatively, the elastomeric dielectric material disposed between the plates may take the form of a plurality of strips or nodules which separate the plates by a distance "d" as above.
Patent CA-1337414-C (CA)
Title: Method for controlling weeds
Inventor: LUTZ WILLIAM R
IPC: C07D233/90
Filed: 1986-06-23
Granted: 1995-10-24
Abstract: A method for controlling weeds preferably in the crops of useful plantsby using a 5-imidazolecarboxylic acid derivative; herbicidal compositions containing the same; novel 5-imidazolecarboxylic acid derivatives.
Patent CA-1282368-C (CA)
Title: System for applied current cathodic protection of a structure
Inventor: LAMBERT MAURICE
IPC: G01R17/02
Filed: 1986-07-23
Granted: 1991-04-02
Abstract: ABSTRACT OF THE DISCLOSURE      The system includes means for cyclically putting into operation a circuit for controlling and regulating a DC generator connected between the structure to be protected which constitutes a cathode and the anodes of a group of anodes which are insulated from the structure and are in contact with the electrolyte in which said structure is placed. The circuit includes means for reading the potential provided by a reference electrode, for calculating the potential difference between the structure and the electrode potential as read, and for comparing the calculated potential difference with upper and lower thresholds. The value of the voltage output from the generator may be adjusted(by means)in steps of predetermined value as a function of the comparison sig-nals delivered by the comparator. The system is parti-cularly applicable to protecting underground or under-water metal structures from corrosion.
Patent CA-1275579-C (CA)
Title: Pressure indicating device
Inventor: SILVERWATER BERNARD
IPC: G01L19/12
Filed: 1986-09-26
Granted: 1990-10-30
Abstract: Abstract of the Disclosure:      The disclosure describes a device for indicating differential pressures between first and second pres-sure sources comprising a piston member slidably disposed within the bore of a housing dividing the bore into first and second chambers.  The housing includes means for connecting the first pressure source to the first chamber and means for connecting the second pressure source to the second chamber whereby the piston member is displaceably responsive to differences in pressure between the first and second pressure sources.  The device further com-prises signalling means in cooperative arrangement with the piston member for indicating at least first and second predetermined differential pressure levels respectively corresponding to first and second dis-placements of the piston member within the bore.  The signalling means includes first indicator means mag-netically coupled to a piston magnetic means for moving from a non-signalling position to a signalling position in response to the first displacement of the piston member and further includes second indicator means for moving from a non-signalling position to a signalling position in response to the second dis-placement of the piston member.
Patent CA-1293910-C (CA)
Title: Rapid differentiation of bacteria using polyether antibiotics
Inventor: CICHANOWICZ PEGGY W
IPC: C12Q1/04
Filed: 1986-12-05
Granted: 1992-01-07
Abstract: RAPID DIFFERENTIATION OF BACTERIA    USING POLYETHER ANTIBIOTICS           Abstract of the Disclosure Rapid differentiation between viable gram-positive and gram-negative bacteria is accomplished with polyether antibiotics which are used in combina-tion with a compound which is normally reducible by the bacteria.  The antibiotics selectively and sub-stantially inhibit the reduction of the reducible compound by gram-positive bacteria but do not sub-stantially affect the reducing capacity of the gram-negative bacteria.
Patent CA-1290997-C (CA)
Title: Pneumatic tool
Inventor: LISTER WILLIAM
IPC: B25D9/14
Filed: 1986-12-09
Granted: 1991-10-22
Abstract: ABSTRACT OF THE DISCLOSURE:           A pneumatic percussion tool for rock breaking and  other  purposes  has,  removably  enclosed  within  an outer  casing  a  pneumatic  engine  including  a  cylinder with a work head extending slidably from its lower end, a  piston  slidable  in  the  cylinder  impacting the work head on  its downstroke.   The piston serves also as a sliding  valve  into which  compressed  air  is   admitted through an air inlet tube fixed coaxially in the cylinder and on which the piston is slidable.   The piston and cylinder  are  formed  with  such  air ports  and passages that the engine remains at rest until the work   head applied with pressure to a work-piece is retracted into the cylinder displacing the piston valve  which thereupon is reciprocated, causing the work head to deliver percus-sive blows while applied to the work-piece.  At the final part  of  its  upstroke  the  piston  enters  a compression chamber or energy cell which thus decelerates the piston and commences its downstroke.
Patent CA-1304087-C (CA)
Title: Sulfoxide derivatives and their preparation
Inventor: OKABE SUSUMU
IPC: C07D471/04
Filed: 1987-01-12
Granted: 1992-06-23
Abstract: NOVEL SULFOXIDE DERIVATIVES AND THEIR PREPARATION                 ABSTRACT OF THE DISCLOSURE      Novel sulfoxide derivatives showing a gastric acid-secretion inhibitory effect which have the formula (I):             (I)   wherein each of R1 and R2 independently is hydrogen or a lower alkyl group, and each of R3, R4, R4a and R4b independently is hydrogen, halogen, a lower alkoxy group, a lower alkyl group, trifluoromethyl, or a fluorine atom-containing lower alkoxy group.  Other novel sulfoxide derivatives are also disclosed.
Patent CA-1282282-C (CA)
Title: Railway track tamping machine
Inventor: PASQUINI SANDRO
IPC: E01B27/16
Filed: 1987-01-21
Granted: 1991-04-02
Abstract: ABSTRACT OF THE DISCLOSURE      The tamping machine is equipped with tool holders (7) on which each of the two tools (8) of a pair of tamping tools is connected by a cylinder-piston unit (28), via an eccentric arm (25, 25'), to one of the two eccentrics (24, 24') of the output shaft (33) of a forced oscillation generator.  Each of the two eccentric arms (25, 25') has, in addition to its articulation to one of the two eccentrics, a second articulation connected directly to a hydraulic cylinder-piston unit (28) and a third articulation (29) connected by a connecting link (30) to a pivot (31) fastened on the tool holder, said last connection having the purpose of immobilizing the two eccentric arms in rotation around the eccentric shaft (33).  This transmission of movements, designed to facilitate the maintenance of the hydraulic cylinder-piston units (28), is also shown applied to two and three pairs of tamping tools juxtaposed in the same plane.
Patent CA-1309490-C (CA)
Title: Method for the three-dimensional surveillance of the object space
Inventor: HAGGREN HENRIK
IPC: G01S/
Filed: 1987-04-10
Granted: 1992-10-27
Abstract: ABSTRACT           The invention relates to a method for the three-dimensional surveillance of the object space.  In order to register the space, there are installed two video cameras at certain angles with respect to each other.  In this object space there are arranged control points, the object coordinates (Xk, Yk, Zk; k = 1, 2, 3...) whereof are measured and the imagewise image coordinates (xki, yki; xkj, ykj) are determined from the corresponding video cameras, whereafter the control points can be removed from the object space.  On the basis of the image coordinate values and the object space coordinate values of the control points, there are calculated the orientation parameters (a11...a33) of projective resection, whereafter the unknown object space coordinates (X, Y, Z) of the observed object points can be solved in a real-time process on the basis of the image coordinates (x, y) registered by the video cameras and by making use of projective intersection.
Patent CA-1275717-C (CA)
Title: Gas flow controller
Inventor: SHIRAI SHIGERU
IPC: G05D7/06
Filed: 1987-05-07
Granted: 1990-10-30
Abstract: ABSTRACT OF THE DISCLOSURE         In regulating a burning gas quantity of a gas combustion apparatus, a gas flow controller is used.          The gas flow controller is constructed such that a closing member within a cock is rotated by using a motor.  The closing member has a plurality of holes formed in the axial direction of the member and a plurality of grooves each corresponding to the hole and formed in the circumferential direction of the member.    The cock is used for changing, opening and closing a plurality of orifice passageways.  The motor is driven in accordance with a signal from a position determining unit which discriminates the position of the cock.  The gas flow controller can advantageously ensure a high precision of gas flow, a high reduction ratio, and a low power consumption.
Patent CA-1304692-C (CA)
Title: Rotary internal combustion engine
Inventor: VUJIC MILOS
IPC: F01C1/34
Filed: 1987-05-08
Granted: 1992-07-07
Abstract: TITLE               ROTARY INTERNAL COMBUSTION ENGINE                             INVENTOR                         Milos VUJIC                           ABSTRACT    A cylindro-epitrochoidal internal combustion engine with the cross-section of an epitrochoid, and a longitudinal section of two intersecting cylinders.  The intersecting cylinders have radii Rx and Ry respectively from centers X and Y. A cylindrical rotor of radius r which is substantially smaller than that of Rx or Ry rotates about its longitudinal axis or center X and carries with it a ported radial whose distal end traces out the loci of points of radius Rx.  Orbiting with the radial piece is a bifurcate cylinder having exterior diameter Ry, centered on the center Y and orbited in concert with the rotor piece within radius Ry to generate at least three internal plenums to the housing and from time to time four; the plenums changing in size and being an input, compression, power and exhaust plenum.  In this respect the power and exhaust plenums are interior of the orbiting cylinder while the intake and compression plenums are defined by the engine housing; on the one hand, and the orbiting cylinder on the other.
Patent CA-1306681-C (CA)
Title: Antioxidant metallo-organic treatment of inflammation
Inventor: DORI ZVI
IPC: C07F15/06
Filed: 1987-05-12
Granted: 1992-08-25
Abstract: ABSTRACT OF THE DISCLOSURE             A method of treating an inflammatory condition in a mammalian subject, particularly arthritis, comprising the steps of administering an effective and nontoxic dose for an inflammation ameliorating period to the subject of at least one metallo-organic complex capable of in vivo superoxide anti-oxidant effects and wherein the metal of the complex is selected from the group which consists of cobalt and iron.
Patent CA-1288649-C (CA)
Title: Dispositif d'ouverture d'enveloppes
Inventor: DIMUR GERARD
IPC: B43M3/00
Filed: 1987-05-25
Granted: 1991-09-10
Abstract: Dispositif d'ouverture d'enveloppes qui comporte une goulotte sensiblement horizontale recevant les enveloppes séparées les unes des autres, avec leur bord supérieur venant au fond de la goulotte. Un rouleau d'extraction est monté au-dessus de la goulotte, sensiblement au niveau du bord inférieur d'enveloppe présente dans la goulotte, et un rouleau associé est monté en vis-à-vis sur un bras pivotant commandé pour le mettre en pression contre le rouleau d'extraction ou l'en écarter. Une palette est montée sous le rouleau d'extraction en ayant une extrémité débordant sur la zone de pression entre les rouleaux. Ce dispositif équipe les machines de traitement du courrier.
Patent CA-1291370-C (CA)
Inventor: HAYASHI TORAHIKO
IPC: A21C3/06
Filed: 1987-06-15
Granted: 1991-10-29
Abstract: ABSTRACT                 An Apparatus and Method for Rolling Croissant Dough Pieces An apparatus and method for rolling croissant dough pieces are provided.  Dough pieces are fed between a pair of rollers with the surface of at least one roller being adhesive to the dough piece and transferred so an endless belt device via a transfer roller of a small diameter and high speed rotation for peeling off the dough piece from the roller.  Then the dough pieces are carried under a rolling up device to be rolled into croissant rolls. The dough pieces are transferred to the endless belt maintaining at least one surface of it adhesive, and so the dough rolls produced are wound tightly due to the dough surfaces adhering to each other.
Patent CA-1292729-C (CA)
Title: Multi-section roots vacuum pump of reverse flow cooling type with internal flow division arrangement
Inventor: HIGUCHI TSUTOMU
IPC: F04C29/04
Filed: 1987-06-23
Granted: 1991-12-03
Abstract: MULTI-SECTION ROOTS VACUUM PUMP OF REVERSE FLOW COOLING TYPE WITH INTERNAL FLOW DIVISION ARRANGEMENT               ABSTRACT OF THE DISCLOSURE    A multi-section Roots vacuum pump of the reverse flow cooling type with internal flow division arrangement includes a sequence of pump sections, casings for the pump sections including housings for accommodating pairs of rotor therein, inlet passages and outlet passages connected to the casing for pump sections, upper peri-pheral gas passages connected to the inlet passage formed around an upper portion of the housing, lower peripheral gas passages connected to a supply inlet of reverse flow cooling gas formed around a lower portion of the housing, partition walls between the upper and lower peripheral gas passages, and inter-section walls for separating adjacent pump sections.  Communicating passages are formed through the inter-section walls for communicating the lower peripheral gas passages of a pump section with the upper peripheral gas passages of the following pump section, connection pipes are provided between an outlet passage of the casing of a pump section and an inlet passage of the casing of the following pump section, and coolers are provided in the connection pipes.
Patent CA-1278393-C (CA)
Title: Television receiver
Inventor: HAKAMADA KUNIO
IPC: H04N5/44
Filed: 1987-07-16
Granted: 1990-12-27
Abstract: ABSTRACT OF THE DISCLOSURE In a television receiver having a channel skip function capable of skipping a channel on the basis of skip flag data stored in a memory, when an automatic add key is depressed, skip flag data of a channel through which a television signal is received is automatically set to a predetermined value so as to enable the user to operate the television receiver more conveniently.
Patent CA-1297435-C (CA)
Title: Messenger rna stabilization in animal cells
Inventor: GILLIES STEPHEN D
IPC: C12P21/00
Filed: 1987-08-25
Granted: 1992-03-17
Abstract: Abstract of the Invention Disclosed is a method of increasing production of proteins, e.g., human tPA, in mammalian cells which normally secrete immunoglobulins.          Degradation of mRNA transcribed from recombinant DNA is decreased by decreasing the length of the untranslated region of the mRNA.  The untranslated region of DNA encoding a protein of interest is altered to produce a shorter recombinant DNA having an untranslated region comprising a poly A addition signal (AATAAA) and less than about 300 nucleotide bases interposed between said poly A signal and the stop codon 3' of the coding region of the gene of interest.  The mammalian cell line is transfected and cultured to produce greater amounts of the protein of interest than the same cell line transfected with the unaltered DNA.
Patent CA-1323748-C (CA)
Title: Rhenium generator system and method for its preparation and use
Inventor: EHRHARDT GARY J
IPC: G21G4/08
Filed: 1987-11-10
Granted: 1993-11-02
Abstract: RHENIUM GENERATOR SYSTEM AND METHOD     FOR ITS PREPARATION AND USE          Abstract A process for preparing a tungsten-188/rhenium-188 generator having a tungstate matrix containing W-188 produced by irradiating tungsten-186 in the tungstate compound. High activity, carrier-free rhenium-188 may be obtained by elution. Substrates for further purifying the rhenium-188 eluate are also described.
Patent CA-1309330-C (CA)
Title: Method and device for collecting and testing for fecal occult blood
Inventor: BAKER JOSEFINA T
IPC: G01N33/72
Filed: 1987-11-17
Granted: 1992-10-27
Abstract: METHOD AND DEVICE FOR COLLECTING AND TESTING FOR FECAL OCCULT BLOOD     ABSTRACT OF THE DISCLOSURE          A method and slide for collecting and testing fecal occult blood which permits multiple analyses of a single fecal sample.  The slide contains a pocket-like member on a portion of the inside front cover of the slide.  An absorbent insert is disposed in the pocket. When the cover is in a closed position the pocket overlies the fecal smear on the specimen viewing sheet and the insert can be removed from the pocket.  This design permits an analysis to be done on the specimen receiving sheet of the slide together with a second confirmatory test on the insert.
Patent CA-1324299-C (CA)
Title: Medication infusion system with disposable pump/battery combination
Inventor: MANN ALFRED E
IPC: A61B19/00
Filed: 1987-12-03
Granted: 1993-11-16
Abstract: MEDICATION INFUSION SYSTEM WITH DISPOSABLE PUMP/BATTERY CASSETTE                 ABSTRACT OF THE DISCLOSURE A disposable cassette for use with a main infusion pump unit is disclosed which contains both a disposable pump and a battery, thereby requiring the simultaneous replacement of both the pump and the battery.  The controller contained in the main pump unit includes a timer which prevents the cassette from being used for longer than a predetermined time, which is substantially less than the life of the battery.  An interlock prevents a cassette from being reinstalled following a single use.
Patent CA-1303788-C (CA)
Title: Process for the production of a sinterable finely divided molding compound with a polyvinyl chloride base and its use
Inventor: BIERINGER HEIMO
IPC: H01M50/414
Filed: 1987-12-04
Granted: 1992-06-16
Abstract: ABSTRACT OF THE DISCLOSURE         Sinterable finely divided polyvinyl chloride powder is produced by suspension polymerization of vinyl chloride.  The polymerization is carried out at 40 to 80°C using an oil-soluble radical initiator in the presence of 0.5 to 1% by weight (based on the monomer) of a suspension stabilizer.  The suspension stabil-izer is a mixture of a sulfated carbohydrate ester and a cellulose ether.  The sulfated carbohydrate ester has the carbohydrate ester moiety of the formula:               (wherein n is 0 to 99 and R is an aliphatic polyol esterified with a long chain aliphatic carboxylic acid) and is 10 to 95% sulfated.          The cellulose ether is methylcellulose, methylhydroxyethylcellu-lose, methylhydroxypropylcellulose, hydroxyethylcellulose or hydroxypropylcellulose.
Patent CA-1306943-C (CA)
Title: Blood products for parenteral administration
Inventor: EIBL MARTHA
IPC: A61K35/16
Filed: 1988-02-02
Granted: 1992-09-01
Abstract: ABSTRACT OF THE DISCLOSURE:            There  are  disclosed  blood  products  for  parenteral administration which are   essentially free of immune-modulating   components,   and   methods   for   their production. The absence of immune-modulating components is expressed by the lack or absence of down-modulation of Fc  receptors  in  the membrane of leukocytes.  The expression of the  receptors  for the Fc fragment of immunoglobulin G in the membrane of monocytes, after interaction with a blood product preparation, is to be reduced not at  all  or by  30  %  at most. The blood products are obtained - by molecular sieving of the blood products by gel permeation chromatography (gel filtration), or -  by  treatment  of  the  blood  products  with  a molecular sieve-like carrier material on which immune-modulating components are selectively adsorbed, or -  by  filtration  of  the  blood  products  through filters having pore diameters of equal to, or smaller than, 10 nm.
Patent CA-1304549-C (CA)
Inventor: MUELLER WALTER B
IPC: B32B27/08
Filed: 1988-02-29
Granted: 1992-07-07
Abstract: ABSTRACT   The multilayer shrink film of the present invention provides very low shrink tension approximating some PVC films, while providing relatively high free shrink characteristics and relatively low shrink temperatures. The preferred film has five layers including a core layer comprising a linear low density polyethylene or ethylene propylene copolymer, two outer layers comprising a polymeric material selected from the group consisting of linear low density polyethylene and ethylene propylene copolymer, and two intermediate layers comprising a polymeric material or blend of materials having a melting point of less than about 100°C.  Suitable materials include ethylene vinyl acetate copolymer, a blend of ethylene vinyl acetate co-polymer and very low density polyethylene,  ethylene butyl acrylate co-polymer, and a blend of ethylene vinyl acetate copolymer and ethylene butyl acrylate copolymer.
Patent CA-1310329-C (CA)
Title: Substituted aromatic silane compounds and method for preparation of same
Inventor: LAU KREISLER S Y
IPC: C08F30/08
Filed: 1988-04-14
Granted: 1992-11-17
Abstract: SUBSTITUTED AROMATIC SILANE COMPOUNDS AND     METHOD FOR PREPARATION OF SAME               ABSTRACT OF THE DISCLOSURE       A new group of silane compounds in which silicon atoms are linked together by a hydrocarbon chain and which comprise phenyl groups substituted with an epoxy group or an ethenyl group.  The compounds of the present invention have the formula   where R1 is selected from the group consisting of:      (a)  an aliphatic hydrocarbon group containing 2 to 10 carbon atoms, and (b)  a group having the formula   where n = 1 to 3 m = 0 to 5;        R2 and R2' are each selected from the group consisting of an alkyl group containing 1 to 4 carbon atoms, an unsubstituted aryl group, and a substituted aryl group;     and R3 is selected from the group consisting of: and   where R4, R5, and R6 are each selected from the group consiting of H, an alkyl group containing 1 to 4 carbon atoms, and an aryl group; and n = 0 to 10.  The compounds of the present invention are useful as encapsulants, primers, topcoats and adhesives.
Patent CA-1329884-C (CA)
Title: Dispositif et methode de mesure des deformations d'un  echantillon
Inventor: LESSI JACQUES
IPC: G01B7/16
Filed: 1988-06-30
Granted: 1994-05-31
Abstract: La présente divulgation décrit un dispositif de mesure des déformations d'un échantillon, lesdites déformations résultant notamment du relâchement des contraintes auxquelles l'échantillon était soumis préalablement à la mesure, l'échantillon ayant un axe correspondant à une direction principale de déformation. Le dispositif est caractérisé en ce qu'il comporte au moins cinq capteurs de déplacement ayant chacun une direction de mesure, les directions de mesure étant sensiblement perpendiculaires audit axe de l'échantillon.