baber/WOPTO huggingface dataset:
Patent CA-1318461-C (CA)
Title: Tripeptide derivatives
Inventor: SAWAYAMA TADAHIRO
IPC: A61K38/05
Filed: 1987-05-05
Granted: 1993-05-25
Abstract: Abstract of the Disclosure A tripeptide derivative represented by the following formula                 (I) wherein R1 represents a C1-10 alkyl group, a C4-7 cycloalkyl or C5-7 cycloalkyl-lower alkyl group, a phenyl or phenyl-lower alkyl group in which the benzene ring may optionally be sub-stituted by a substituent selected from halogen, lower alkyl, lower alkoxy, phenyl, methylenedi-oxy, ethylenedioxy, amino, di(lower alkyl)amino and hydroxy, a naphthyl or naphtbyl-lower alkyl group in which the naphthalene ring may option-ally be substituted by a substituent selected from halogen, lower alkyl, lower alkoxy and hydroxy, a heterocyclic or heterocyclic-lower alkyl group in which the heterocycle is a saturated or unsaturated 5- or 6-membered ring containing a nitrogen, oxygen or sulfur atom as the hetero atom, and may optionally be substi-tuted by a substituent selected from halogen, lower alkyl, lower alkoxy, amino, di(lower alkyl)amino, hydroxy, oxo and saturated 5- or 6-membered nitrogen-containing heterocyclic group, and further may optionally be fused to a benzene ring, or an imidazolylvinyl group; R2 represents a hydrogen atom, a C1-10 alkyl group or a benzyl group; R3 represents a group of the formula                   or  -?-?H-COOR4 (a)              (b) in which   represents a benzene, cyclo-pentane or cyclohexane ring, R4 represents a hydrogen atom, a C1-10 alkyl group or a benzyl group, p is n or 1, q is 1, 21 or 3, and X represents a phenyl group which may optionally be substituted by a substi-tuent selected from halogen, lower alkoxy and hydroxy, a C4-8 cycloalkyl group, or a C5-7 cycloalkyl group which is fused to a benzene, and Y represents a hydrogen atom or a lower alkyl group, or X and Y, to-gether with the nitrogen and carbon atoms to which they are bonded, forms a 5- or 6-membered heterocycle which may contain a nitrogen, oxygen or sulfur atom, W represents a single bond, -O- or -NH-, T represents a single bond, -?- or -S-, and m is 2 or 3, or salts thereof; processes for production thereof; and the use thereof as a medicine, particularly an anti-hypertensive agent.
Patent CA-1282563-C (CA)
Inventor: VOSS GERHARD
IPC: E05F1/12
Filed: 1987-05-28
Granted: 1991-04-09
Abstract: HINGE ARRANGEMENT Abstract of the Disclosure An over-center, two-link hinge mechanism which can be made of simple off-the-shelf components has a hinged part pivotally mounted to a bar spaced apart from a frame.  Two pivotally connected links connect the hinged part and the frame in front of the hinged part pivot point.  A pre-tensioned volute spring connects an interlink pivot pin with the frame behind the hinged part pivot point.  Two hinge mechanisms can be used back-to-back, in which case the pin connecting the link to the frame for one hinge can serve as an attachment point for the spring of the other hinge, and vice-versa.
Patent CA-1300308-C (CA)
Title: Water-compatible coating composition
Inventor: WILSON THOMAS H JR
IPC: C08G59/40
Filed: 1987-07-17
Granted: 1992-05-05
Abstract: ABSTRACT          Water-compatible compositions containing resins that contain nitrogen but are substantially free of mercaptan groups, primary amino groups, and secondary amino groups.  The compositions are heat-cured at low temperatures using bis-maleimides or sparingly-soluble corrosion-inhibiting chromate pigments.  The compositions preferably are used for cathodic electrophoretically-depositable coating applications.
Patent CA-1307273-C (CA)
Title: Chromogenic substituted 4,7-diazaphthalides
Inventor: MILLER ROBERT E
IPC: G03G5/09
Filed: 1987-07-20
Granted: 1992-09-08
Abstract: Abstract The invention relates to novel substituted 4,7-diazaphthalides of the general formula   wherein  X  and  Y  each  independently  of  the  other,  are  optionally substituted  aminophenyl,  indolyl,  benzoindolyl,  jujolidinyl  or  kairolyl radicals; and R1  and  R2,  each  independently  of  the  other,  are  hydrogen,  lower alkyl or optionally substituted phenyl,  provided that both R1 and R2 are not hydrogen. These compounds are particularly suitable for use as color formers in pressure-sensitive or heat-sensitive recording materials.
Patent CA-1311248-C (CA)
Title: Process for the preparation of thiophosphinic chlorides
Inventor: KLEINER HANS-JERG
IPC: C07F9/34
Filed: 1987-08-07
Granted: 1992-12-08
Abstract: Abstract of the disclosure A process for the production of a chloride of thiophosphinic acids which comprises reacting an anhydride of a phosphinic acid with thiophosphoryl chloride.
Patent CA-1294910-C (CA)
Title: Process for the enzymatic separation of the optical isomers of racemic oxazolidinonic derivatives
Inventor: CESTI PIETRO
IPC: C12P17/14
Filed: 1987-12-29
Granted: 1992-01-28
Abstract: * * * * * *                              Abstract There is disclosed a process for the biotechnological resolution, by enzymatic esterification of the corresponding racemic mixture of the S(+)  and R(-) optical isomers of the oxazolidinonic compounds having formula (I):       (I) wherein R represents a, linear or branched, C1-C8 alkyl group, which process is characterized in that, the racemic 3-alkyl--5-hydroxymethyl-oxazolidin-2-one derivative of formula (I)
Patent CA-1293770-C (CA)
Title: Device for in situ monitoring of corrosion rates of polarized or unpolarized metals
Inventor: MCKUBRE MICHAEL C H
IPC: G01N17/02
Filed: 1988-01-06
Granted: 1991-12-31
Abstract: ABSTRACT OF THE DISCLOSURE            A technique for electrochemical measurement of the corro-sion current (corrosion rate) is disclosed.  The electro-chemical parameters that are necessary to calculate the corrosion rate are contained  in the harmonic  current, response to a moderate amplitude sinusoidal voltage per-turbation applied to the corroding metallic component. The harmonic current response is analyzed at frequencies 1f, 2f, 3f, 4f, 5f and the rectification current response at DC current to the presence of a 20-50 mV AC voltage perturbation at a frequency f.  The free corrosion cur-rent density, the free corrosion potential and the Tafel coefficients are calculated.   The Tafel coefficient or Tafel slope is a measure of the exponential dependence at the rate of corrosion in a material.  From these data, the dissolution current is calculated, which in turn is integrated with respect to time to yield a cumulative mass loss.
Patent CA-1297750-C (CA)
Title: Endoscope with removable eyepiece
Inventor: ADAIR EDWIN L
IPC: A61B1/04
Filed: 1988-01-08
Granted: 1992-03-24
Abstract: ABSTRACT A sterilizable catheter of micro-thin diameter has a central coherent fiber bundle for carrying an image to a viewing means, which is surrounded by light fibers. The proximate end of the catheter is provided with a coupling means for aligning the coherent optical bundle with the optical system of the viewing means and for providing an interface with light transmitting means to transmit light from a light source to the body cavity. The coupling means has a diameter no bigger than the diameter of the covering of the catheter.  When the catheter is used in a trochar, the trochar can be removed while the catheter remains in place.  This is accomplished by removing the viewing means and sliding the trochar over the catheter and then replacing the viewing means for further viewing within the body cavity.  The catheter of this invention may be provided in various sizes, each having coupling means for reception in any one of a plurality of sockets in a video monitor which are sized for the various catheters to provide an image to the video monitor screen.
Patent CA-1331280-C (CA)
Inventor: BERGOUNHON RENE
IPC: C04B11/028
Filed: 1988-03-14
Granted: 1994-08-09
Abstract: PCT No. PCT/FR88/00111 Sec. 371 Date Jan. 6, 1989 Sec. 102(e) Date Jan. 6, 1989 PCT Filed Feb. 29, 1988 PCT Pub. No. WO88/07163 PCT Pub. Date Sep. 22, 1988.Oven for dehydrating pulverulents, sand or granules, comprising an energy-saving dehydration device, adapted to gypsum burning. The device consists of an outer casing, an inner casing and flow cones disposed on said casings. A burner and a lock complete the device. Pressure within the oven is increased by the provision of a cover, a gypsum lock and a steam valve. The process takes place in dry or moist conditions, the latter being advantageous for the processing of insulating products or for gypsum amending the nature of plaster. Heat exchange enables the products to be processed at low temperatures. The central combustion chamber prevents loss by radiation. Application to gypsum burning, during which the device has demonstrated energy savings of 50% in comparison with traditional appliances.
Patent CA-1279723-C (CA)
Title: Video matte generator
Inventor: MCFETRIDGE GRANT T
IPC: H04N9/74
Filed: 1988-03-25
Granted: 1991-01-29
Abstract: Abstract A matte generator for generating a video sig-nal representative of a matte having a uniform color, comprises an operator interface for gen-erating signals representing three independent variables which are sufficient to characterize a color.  A processor receives the input signals and derives three numerical values from the input sig-nals and from calibration values provided to the processor, and a quadrature modulator receives a subcarrier signal and signals representing the three numerical values and generates an encoded video signal in response thereto.  The encoded video signal and a calibration signal are applied to a calibration circuit for comparing the encoded video signal and the calibration signal and pro-viding an output signal representative of the re-lationship therebetween.  The output signal of the calibration circuit is applied to the processor and is used to generate calibration values such that the encoded video signal is brought into predeter-mined relationship with the calibration signal.
Patent CA-1302089-C (CA)
Inventor: UOZU HISAHIRO
IPC: B01J8/06
Filed: 1988-03-30
Granted: 1992-06-02
Abstract: Abstract An apparatus for an endothermic reaction of a gas such as steam reforming having a cylindrical vessel which is provided therein a fuel gas supply room, a combustion catalyst holding wall, a flue gas passage room, and a reaction room, all of which are cylindrical or annular and coaxially piled in this order, the catalyst holding wall having a combustion catalyst holding layer on a flue gas passage room side thereof and the reaction room having a product gas passage; whereby a mixture of a fuel gas and an oxygen containing gas passes through the catalyst holding wall from the supply room into the flue gas passage room, being burnt by the catalyst to become a flue gas and to generate combustion heat, and the flue gas is discharged while the heat is given to the reaction room mainly by radiation from the catalyst layer; a raw material gas passes through the reaction room reacting endothermically to become a product gas, which is discharged through the product gas passage in countercurrent heat exchange arrangement with the raw material gas passing through the reaction room.
Patent CA-1293279-C (CA)
Title: Latch and lock assemblies with spring-biased pivot bolts
Inventor: WEINERMAN LEE S
IPC: E05B13/10
Filed: 1988-05-09
Granted: 1991-12-17
Abstract: LATCH AND LOCK ASSEMBLIES WITH SPRING-BIASED PIVOT BOLTS                     Abstract Flush mountable latches and locks for industrial cabi-nets, tool carts, electrical equipment enclosures and the like utilize versatile housings of novel configuration together with push-to-operate handles that are pivotally movable relative to the housings to effect unlatching movements of spring-biased, pivotally mounted latch bolts.  The lock-type embodiment has a locking mechanism that is mounted on the housing to selectively permit and prevent unlatching movements of its pivotal  latch bolt.  The resulting arrangement provides sturdy latch and lock assemblies that employ a small number of relatively movable parts that can be assembled, installed and serviced with ease.
Patent CA-1314138-C (CA)
Title: Thermally conductive gel materials
Inventor: DITTMER CATHERINE A
IPC: C08L101/00
Filed: 1988-06-15
Granted: 1993-03-09
Abstract: ABSTRACT     This invention provides new heat transfer materials comprising gels and particulate fillers and having a com-posite heat transfer coefficient greater than 2 watts/m-°K and preferably greater than 15.  The materials are easily conformable to irregularly shaped surfaces and have low TO-3 thermal impedance values, e.g., less than 0.5 at 300 psi mounting pressure.
Patent CA-1280553-C (CA)
Title: Water entrainment hydrotherapy jet assembly
Inventor: HENKIN MELVYN L
IPC: A61H33/02
Filed: 1988-06-17
Granted: 1991-02-26
Abstract: ABSTRACT OF THE DISCLOSURE A   hydrotherapy   jet   assembly   and/or  installation configured  to  discharge  a high intensity stream into a water tub  without  requiring  air entrainment.  Passageway means are provided  for  drawing  water  from  the  tub  into  the mixing chamber  of a jet assembly for entrainment by a water jet.  The stream  discharged  from  the  jet  assembly  into  the  tub is comprised  of (1) water supplied under pressure into the mixing chamber  by a water jet nozzle and (2) water drawn from the tub for  entrainment  by  the  water  jet.  The effect of tub water entrainment   is  to  produce  a  high  intensity  stream  for impacting  against a user's body without significantly lowering the temperature of the water pool in the tub.
Patent CA-1295683-C (CA)
Title: Method for detecting of a damage of a corrosion-resistant protective layer and measuring device for performing the method
Inventor: TRAMPERT RAINER
IPC: G01M3/40
Filed: 1988-06-20
Granted: 1992-02-11
Abstract: Abstract A method and a measuring device for localizing a damage in a dielectric corrosion resistant layer of a pipe line are described, especially for an enameled pipe line, through which an electrolytically conducting fluid is passed. Localization is achieved by performing a potential difference measurement between two electrodes arranged at the begin and at the end of a supervised region along the length of the pipe line, to which preferably a constant current source is connected, the positive terminal of which is connected with the carrier material of the pipe line and the negative terminal of which is connected with the two electrodes. Preferably a calibration is performed by means of an additional electrode, which can be connected to the measurement region.
Patent CA-1288661-C (CA)
Title: Valve for hydraulic cylinders and the like
Inventor: DECKER ARNOLD F
IPC: F15B13/02
Filed: 1988-06-21
Granted: 1991-09-10
Abstract: ABSTRACT OF THE DISCLOSURE           Fluid flow control valves are provided having a jet pump or aspirator connected to a plurality of fluid passageways.  Fluid flow from one of the passageways through the jet pump creates a partial vacuum enabling fluid flow to be drawn through the other of the fluid passageways connected to the jet pump.  Such valves enable hydraulic fluids of a single-acting piston-cylinder unit or the like to be readily exhausted.          In a provided system of this invention, hy-draulic or pneumatic pumps may be employed for cylinder exhaustion.
Patent CA-1330819-C (CA)
Inventor: ROMAN CHRISTOPHER D
IPC: H01H31/00
Filed: 1988-08-10
Granted: 1994-07-19
Abstract: ABSTRACT A contact assembly is provided for a high-voltage switch.  The contact assembly includes one or more contact members that cooperate with a contact element.  The arrangement of the contact members is such that an interference fit results with the contact element and one or more of the contact members are displaced.  To provide operation of the contact assembly in ice-forming environments, facilities are provided to prevent the ingress of moisture and the formation of ice in the space required for displacement of the appropriate one or more contact members.   Of course, if ice were allowed to occupy the space required for displacement of the one or more contact members, due to the relatively incompressible nature of ice, appropriate contact engagement would be inhibited since displacement of the one or more contact members would be unable to occur when engaged by the contact element.   In a specific arrangement,  the contact assembly includes a contact support structure which carries the contact  members.   A  filler  element  is  provided  between  the  contact support  structure  and  the  contact  members  that  are  required  to be displaceable.  The filler element is deformable and/or compressible  in response to the displacement of the contact member.  Additionally,  the filler element is impervious to the ingress of moisture or the formation of ice crystals and retains its flexibility under ice-forming conditions.
Patent CA-1319374-C (CA)
Inventor: DAVIS ALBERT W
IPC: F16D1/08
Filed: 1988-08-30
Granted: 1993-06-22
Abstract: P-14,801-CIP     ABSTRACT A torsion spring coupling for repairing broken torsion springs including at least two mating semi-cylindrical segment members securable around a torsion bar.  The segments are secured between opposing end segments of a broken torsion spring to form a cylinder having threaded outer circumferential surfaces for threadedly engaging opposing segments of a broken torsion spring to prevent relative rotational movement between opposing segments of a broken torsion spring longitudinally along a torsion bar.
Patent CA-1305642-C (CA)
Title: Solid silicone defoaming
Inventor: MORISHITA KEN
IPC: C08G77/14
Filed: 1988-08-30
Granted: 1992-07-28
Abstract: ABSTRACT OF THE DISCLOSURE     The  invention  disclosed herein  provides  a  solid silicone defoaming agent which comprises:      (A)  5 to 60 weight parts by weight of a  self-emulsifying defoaming agent compound and (B)  95 to 40 weight parts wax; wherein  said  self-emulsifying  defoaming  agent  (A) consists of;      at  least 5 weight %  of a silicone oil  compound comprising: (a)  a silicone oil having a viscosity of at least 20 centistokes at 25 degrees Centigrade, (b)  microparticulate silica, (c)  at least 30 weight % of a polyoxyalkylene and/or polyoxyalkylene/polysiloxane copolymer, and optionally (d)  zero to 30 weight % of a water soluble surfactant other than copolymer (C): and wherein said wax (B) consists of: (i)  wax which does not disperse or dissolve in water at room temperature and which has a melting point of at least 35 degrees Centigrade, and/or (ii) wax which dissolves or disperses in water at room temperature and which ha  a melting point of at least 30 degrees Centigrade; and wherein the wax (i) comprises not more than 60 weight % of the overall defoaming agent.
Patent CA-1301464-C (CA)
Title: Green asparagus harvester
Inventor: SALKELD WILLIAM J
IPC: A01D45/00
Filed: 1988-08-30
Granted: 1992-05-26
Abstract: SPECIFICATION     TITLE:       "GREEN ASPARAGUS HARVESTER"            Abstract of the Disclosure An asparagus spear selection and picking unit for a harvester of green asparagus has at least one pair of tynes which are mounted adjacent to, but spaced apart from,  each other.  The adjacent edges of the tynes are shaped to provide a tapered channel leading to the nip of a pair of soft conveyors mounted adjacent to each other and extending upwards at an acute angle relative to the horizontal.   The height of the pair of tynes above ground level is adjustable.   When a growing asparagus spear has a height sufficient for its  tip  to be  guided  into  the  nip  of  the  soft conveyors by the tynes,  its top is gripped by the soft conveyors.   Shortly after being gripped by the soft conveyors,   the tip of the spear activates a sensor (a microswitch or an electro-optical device) to generate a signal which activates a cutter to cut the spear at or near its base.    The cut asparagus spear is then conveyed by a series of conveyors to be deposited in a required orientation in a skip,  field basket or pocket being carried on the harvester.
Patent CA-1308433-C (CA)
Inventor: POTHIEUX DANIEL
IPC: H01H33/18
Filed: 1988-09-22
Granted: 1992-10-06
Abstract: PRECIS DE LA DIVULGATION:          Bobine de soufflage magnétique par rotation de l'arc pour élément de contact d'un interrupteur électrique comprenant notamment une cuvette conductrice de forme cylindrique connectée à une arrivée de courant,  un enroulement  disposé  dans  ladite  cuvette  et  dont  une extrémité est connectée à la cuvette, pour produire un champ magnétique selon l'axe de la cuvette,  un noyau conducteur connecté à l'autre extrémité de l'enroulement et situé au centre de l'enroulement,  ainsi  qu'un contact  fixe de coupure, disposé devant la bobine, par rapport à ladite cuvette,  dans le champ magnétique qu'elle produit et électriquement connecté audit noyau.  L'enroulement est constitué à l'aide d'un conducteur plat enroulé sur le noyau, sur plusieurs tours, en même temps qu'une feuille isolante,  et  des  moyens  sont  prévus  pour  mettre l'enroulement sous compression.
Patent CA-1318050-C (CA)
Title: Process for the preparation of a nylon block copolymer
Inventor: VAN GEENEN ALBERT A
IPC: C08G69/18
Filed: 1988-12-06
Granted: 1993-05-18
Abstract: A B S T R A C T           This invention relates to a process for the pre-paration of a nylon block copolymer in which two or more reaction streams consisting of molten lactam are combined in a mould, said reaction streams containing one or more poly-ols, lactam blocked polyisocyanates and catalysts, and the catalysts and polyisocyanates being in different streams, which reaction, streams having a temperature of 68°C - 95°C intro-duced into a mould having a temperature of 100°C - 180°C.          The advantage of this process is that now the polyol is homo-geneously distributed throughout the nylon matrix, and as a consequence a nylon block copolymer with excellent notched resistance is obtained.
Patent CA-1298770-C (CA)
Inventor: MCEWEN CRAIG S
IPC: H05K1/03
Filed: 1988-12-13
Granted: 1992-04-14
Abstract: TITLE          LOW DIELECTRIC CONSTANT LAMINATE OF FLUOROPOLYMER AND POLYARAMID                       ABSTRACT      A laminate comprising a perfluoropolymer reinforced with polyaramid positioned between two layers of copper is disclosed.  The laminate comprises in order (1) a layer of copper, (2) a layer of fluoropolymer selected from the group consisting of polytetrafluoroethylene, a copolymer of tetrafluoroethylene and hexafluoropropylene, a copolymer of tetrafluoroethylene and perfluoro (propyl vinyl ether), a terpolymer of tetrafluoroethylene, hexafluoropropylene, and perfluoro (propyl vinyl ether) and a terpolymer of tetrafluoroethylene, hexafluoropropylene, and perfluoro (ethyl vinyl ether) which is reinforced with a woven or non-woven fabric of polyaramid fiber, such that the volume percent of polyaramid on the basis of the total of polyaramid plus fluoropolymer is less than about 40, and (3) a second layer of copper.  The laminates may be used in printed circuit boards.