baber/WOPTO huggingface dataset:
Patent CA-1297604-C (CA)
Title: Silicon-containing copolyester and method of producing same
Inventor: NAKANE TOSHIO
IPC: C08G63/695
Filed: 1987-11-13
Granted: 1992-03-17
Abstract: ABSTRACT OF THE DISCLOSURE         A silicon-containing copolyester in the form of a block copolymer consists of 1-99% by weight of a siloxane segment of the following general formula:                                          (A) (in which R represents a hydrocarbon radical having 1-10 carbon atoms and m represents a value of 1-2000) and 99-1% by weight of a polyester segment expressed by the following general formula;       or            (B)   (in which R1 is an aromatic bivalent radical having 6-12 carbon atoms or aliphatic bivalent radical having 4-20 carbon atoms, R2 is an aromatic bivalent radical having 6-20 carbon atoms or aliphatic bivalent radical having 2-20 carbon atoms, and n represents a value of 1-1000). The copolyester has good resistance to impact shock and to hydrolysis and is useful, for example, for molding articles.
Patent CA-1300696-C (CA)
Title: High frequency resistance spot welding structure and method
Inventor: FARROW JOHN F
IPC: B23K13/04
Filed: 1987-12-08
Granted: 1992-05-12
Abstract: ABSTRACT OF THE DISCLOSURE           High frequency resistance spot welding structure and method. In one embodiment, the structure includes dual, mirror image welding transformers,  each including. a transformer secondary circuit,  an endless transformer core, and a transformer primary winding wound around the transformer core   The transformer secondary circuits may be single member,  U-shaped transformer secondaries with integral electrode portions.  In another embodiment, one of the transformers is replaced by a pair of spaced apart welding electrodes which are connected by a conductor.  Means are provided for supplying welding pressure to the transformers to move them with their associated welding electrodes  during  a weld  sequence.   A high  frequency, electrical welding signal is applied to the transformer primary circuits which are synchronized when two transformers are used so that the  welding  currents  passing through  the. transformer  secondary circuits reinforce each other.   The structure is small and light weight so as to be inexpensive, positioned immediately adjacent a weld, and moved quickly.   The method of the invention includes providing the high frequency welding signal to the mirror image, closely spaced apart welding structures,  synchronizing the high frequency welding signal to provide push/pull welding and providing forging pressure through the transformers or transformer to move-them with their associated electrodes during spot welding.
Patent CA-1327586-C (CA)
Inventor: LE TOURNEAU MICHAEL E
IPC: A61K31/41
Filed: 1988-01-21
Granted: 1994-03-08
Abstract: ABSTRACT OF THE DISCLOSURE      The present invention is directed to a group of meth-ylated tetrahydro cyclohepta[1,2-c:4,3-c']dipyrazoles and benzo[1,2-c:4,3-c']dipyrazoles useful as bronchodilators. The compounds are prepared by the reaction of an appro-priate hydrazine with an appropriate 1,3-diketone or with a compound that is chemically equivalent to a 1,3-diketone.
Patent CA-1290352-C (CA)
Inventor: O'NEILL PATRICK S
IPC: C07C67/00
Filed: 1988-03-04
Granted: 1991-10-08
Abstract: AN IMPROVED ALKYLATION PROCESS   UTILIZING ENHANCED BOILING SURFACE HEAT EXCHANGER IN THE REACTION ZONE               ABSTRACT OF THE DISCLOSURE         The present invention is directed to an improvement in an alkylation process involving effluent refrigeration in which an enhanced boiling surface heat exchanger is utilized in the alkylation reaction zone so as to carry out the reaction at its optimum reaction temperature and at a positive compressor suction pressure.
Patent CA-1305970-C (CA)
Title: Process for producing ifosfamide having improved properties
Inventor: ENGEL JUERGEN
IPC: C07F9/547
Filed: 1988-03-04
Granted: 1992-08-04
Abstract: ABSTRACT OF THE DISCLOSURE         Ifosfamide having improved properties is obtained by crystallization from a diethyl ether/C1-C3 alkanol mixture or from a diisopropyl ether/C1-C3 alkanol mixture under specified controlled conditions.
Patent CA-1284939-C (CA)
Title: Slide rail device for vehicle seat
Inventor: KANAI MASATATSU
IPC: B60N2/90
Filed: 1988-03-10
Granted: 1991-06-18
Abstract: ABSTRACT OF THE DISCLOSURE           A slide rail device for a vehicle seat adapted for adjustment of fore-and-aft positions of the seat, comprising an upper rail fixed to the seat and a lower rail slidably fitted to the upper rail, with one end of a seat belt being secured to the upper rail, in which the lower rail encloses the upper rail, with such an arrangement that an upper inverted-U-shaped portion of the lower rail is disposed above a substantially U-shaped shoulder portion of the upper rail, a lateral wall portion of the lower rail is inclined in conformity with a direction of an upward pulling force exerted via the seat belt upon the upper rail, and the shoulder portion of the upper rail is so formed as to accommodate the end of the upper inverted-U-shaped portion of the lower rail, to thereby prevent the separation of the upper rail from the lower rail.
Patent CA-1303838-C (CA)
Title: Tissu a base de fibres resistant au feu et articles comprenant un tel tissu
Inventor: AUDUC HERVE
IPC: B64C1/40
Filed: 1988-04-14
Granted: 1992-06-23
Abstract: Tissu à base de fibres résistant au feu et articles comprenant un tel tissu Tissu à base de fibres, résistant au feu et comprenant un mélange de: a) 50-90% en poids environ de fibres texturées "non-feu"; b) 10-50% en poids environ de fibres techniques ayant une rigidité supérieure à celle du verre texturé, à la condition que, si les fibres a) sont des fibres de verre texturées, les fibres b) sont autres que des fibres de carbone. Les fibres texturées préférées sont les fibres de verre . Les fibres (b) peuvent être des fibres de carbone, d'aramide ou de carbure de silicium. Les tissus sont utiles pour la fabrication d'articles composites imprégnés de résine phénolique et résistants au feu.
Patent CA-1312489-C (CA)
Title: Double layered wire or fabric for papermaking machines
Inventor: VOEHRINGER FRITZ
IPC: D21F1/00
Filed: 1988-04-21
Granted: 1993-01-12
Abstract: ABSTRACT The invention relates to a to papermaking of double layered fabric, consisting of a set of longitudinal threads (yarns in machine direction) and a set of cross threads on the running side of the wire (yarns in cross machine direction) as well as a set of cross threads on the paper side of the wire, the last one consisting of at least two groups of cross threads differing from one another with respect to the outwardly located length of floatings.  In order to avoid an unacceptable decrease of the stability of the wire and avoid markings in the paper as well as an essential reduction of drainage of the wire  if the number of cross threads on the paper side is increased, the wire is configurated such that it includes three groups of cross threads A, B, C on the paper side and that within one weave pattern each longitudinal thread is crossing over three cross threads succeeding one another on the paper side and thereafter crossing below three cross threads succeeding one another on the paper side and thereafter crossing over three cross threads succeeding one another on the paper side and running thereafter between the cross threads on the paper side and on the running side interlacing at least one cross thread on the running side.
Patent CA-1300729-C (CA)
Title: Decorative switchplates and receptacle wall plates
Inventor: HILL D JAMES
IPC: H02G3/14
Filed: 1988-05-04
Granted: 1992-05-12
Abstract: ABSTRACT           The object of the invention is to provide an apparatus for mounting decorative plates and/or material on wall covers for electrical switches and receptacles.  Said wallplate for electrical switches and receptacles comprises a baseplate with retaining lip to be attached directly to the switch/receptacle by screws, a decor plate, decor, transparent shield and outer decorative overframe, all of which are attached to the baseplate with a trim frame around the perimeter of the baseplate, decor plate, decor and transparent shield, said baseplate having a lip around its front inner surface and projections or buttons placed around its inner opening thereby enclosing the baseplate lip and the edges of the decor plate, decor and transparent shield, and a flange at and around the front surface of the outer perimeter of the trim frame which holds the decorative overframe in place against the wall.  The trim Frame is easily removable for the changing of the decor plate, decor material, transparent shield and decorative overframe.
Patent CA-1337095-C (CA)
Title: Procede de fabrication d'une piece notamment d'un disque de frein en carbone - carbone et piece obtenue
Inventor: CHAREIRE JEAN-LOUIS
IPC: F16D69/02
Filed: 1988-06-17
Granted: 1995-09-26
Abstract: Procédé de fabrication d'une pièce notamment d'un disque de frein en carbone-carbone et pièce obtenue. Ce procédé consiste à former un substrat poreux ayant la forme d'un disque de frein (32) et constitué exclusivement de fibres de carbone ; à former dans ce substrat des trous (34) dont les axes sont parallèles à l'axe de révolution (36) du disque, ces trous étant disposés sur des cercles concentriques (38) centrés sur ledit axe de révolution, des zones (42) dépourvues de trous étant prévues autour des rainures de clavettes (40) du disque, puis à densifier le substrat par CVD, les trous pratiqués dans le substrat servant à diminuer les parcours du gaz dans le substrat.
Patent CA-1340649-C (CA)
Title: Purified follicle stimulating hormone
Inventor: SIRNA ANTONINO
IPC: C07K19/00
Filed: 1988-06-24
Granted: 1999-07-13
Abstract: Purification of human follicle stimulating hormone from post-menopausal urine gonadotropin using immunochromatography and reverse-phase HPLC steps yields a biologically active hormone which is free from detectable traces of LH and other urinary proteins and has a specific follicle stimulating hormone (FSH) activity of not less than 6,200 I.U. of FSH per mg of lyophilized powder.
Patent CA-1306802-C (CA)
Title: Magnetoresistive read transducer
Inventor: KROUNBI MOHAMAD T
IPC: G11B5/39
Filed: 1988-07-07
Granted: 1992-08-25
Abstract: MAGNETORESISTIVE READ TRANSDUCER                      Abstract of the Disclosure A magnetoresistive (MR) read transducer assembly in which the thin film MR layer is longitudinally biased only in the passive regions by exchange bias developed by a thin film of antiferromagnetic material that is deposited in direct contact only in the passive regions of the MR layer and a thin film of soft magnetic material which extends across the transducer assembly. The longitudinal bias is developed by exchange coupling between the thin film of antiferromagnetic material and both the MR layer and the thin film of soft magnetic material in the passive regions.          However, the thin film of soft magnetic material is separated from the MR layer in the active region only of the MR layer by a decoupling layer which interrupts the exchange coupling so that transverse bias is produced only in the active region upon connection of a bias source to conductor leads which are connected to the MR layer within the passive region.  The transverse bias is produced in that part of the active region of the MR layer in which the bias/sense current and the decoupling layer are both present.  Upon connection of a signal sensing means to the conductor leads, an output signal is sensed which detects resistance changes in the MR layer as a function of the fields which are intercepted by the MR layer.
Patent CA-1284116-C (CA)
Title: Wall feedthrough fitting
Inventor: HAUFF WERNER
IPC: F16L5/14
Filed: 1988-08-15
Granted: 1991-05-14
Abstract: ABSTRACT OF THE DISCLOSURE      A feedthrough fitting seals around at least one conduit extending longitudinally through a wall opening forming two pairs of parallel inner side surfaces and forming longitudinally directed inner and outer peripheral surfaces.          The fitting comprises a plurality of similar elastomeric liner blocks each extending the full width of the frame from one of the side surfaces thereof to the opposite parallel side surface thereof.  Each block is formed with at least one interface surface directly engaging the interface surface of an adjacent block, at least one half seat on one of the interface surfaces complementary to the conduit and snugly engaging same, a nonplanar formation extending the full width of the opening on each of the interface surfaces and hermetically interfitting with the nonplanar formation of the adjacent block, and outwardly directed inner and outer lips that extend laterally past the respective opening and engage on the inner and outer peripheral surfaces.  A tightener has a pair of wedges engaged between the blocks and an inner surface of the opening and a system for pulling the wedges longitudinally together and thereby pressing the blocks transversely together at their interface surfaces.
Patent CA-1303756-C (CA)
Title: Storage and transport containers for radioactive medical materials
Inventor: SUTHANTHIRAN KRISHNAN
IPC: G21F5/015
Filed: 1988-11-01
Granted: 1992-06-16
Abstract: ABSTRACT OF THE DISCLOSURE        A storage and transport container for radioactive medi-cal materials comprising a stainless steel shell with a central stainless steel well opening downwardly from the top of the con-tainer with a multiplicity of small diameter, generally U-shaped stainless steel tubes, one end of each such tube extending out of each  side of  the stainless  steel  shell,  the bottom of  the U-portion of each tube passing under the central well.  Where the container  is  substantially cylindrical,  the well  and stainless steel  tubes may extend substantially through the length of the shell.  The wells of the containers are stoppered or sealed with a plug of radiation shielding material.  A novel handle structure for such containers comprises a vertical shaft connected to the container  by a short open sleeve attached near  the top of one side of  the container so that the shaft may move upwardly and downwardly  in  the sleeve  and rotate therein.   The top of  the shaft has a horizontal handle extending therefrom and the oppo-site side of the bottom of the shaft has a pin extending outward-ly therefrom,  which pin is engageable with a locking groove in the sleeve which retains and orients the handle with respect to the container when the handle is in the raised position.
Patent CA-1294493-C (CA)
Title: Coal additives
Inventor: DYKEMA OWEN W
IPC: C10L10/04
Filed: 1988-11-04
Granted: 1992-01-21
Abstract: ABSTRACT           A process for combusting a sulphur-bearing fuel is disclosed.  A mixture of the fuel, a sulphur binding material and a sulphur retaining material is introduced into a first combustion zone.  The mixture is combusted in the first zone under conditions of fuel-rich stoichiometry and temperature wherein substantially all of the sulphur is captured in a solid form by the sulphur binding material.  The resulting captured sulphur compounds are then physically and/or chemically bound within or with the retaining material.  Combustion products are thereby produced which include fuel-rich gases and solid flyash and slag containing mixtures of the captured sulphur and the binding and retaining materials.  These combustion products are then further combusted in at least one additional fuel-rich combustion zone at temperatures above the fusion temperature of the solids, to melt the solids and to form complex, refractory mixtures and compounds containing the captured sulphur.  Sodium present in the fuel may also advantageously be captured and retained by the above process.
Patent CA-1326479-C (CA)
Title: Amine containing initiator system for anionic polymerization
Inventor: LO GRACE Y
IPC: C08F212/00
Filed: 1988-11-15
Granted: 1994-01-25
Abstract: ABSTRACT         Narrow molecular weight telechelic and/or block copolymers are prepared by anionic polymerization using an initiator composition comprising a multifunctional lithium initiator in combination with an organic diamine or triamine and optionally a metal alkoxide.
Patent CA-1326473-C (CA)
Title: Microwave receptive heating sheets and packages containing them
Inventor: ANDREAS DAVID W
IPC: B65D81/34
Filed: 1989-03-02
Granted: 1994-01-25
Abstract: ABSTRACT     A microwave heating package including an outer microwave transparent packaging enclosure and an inner microwave receptive heating sheet for heating food pieces, said sheet comprising a backing and a microwave receptive heating material associated therewith, said sheet being formed into a plurality of longitudinally extending, laterally spaced apart partitions defining food compartments therebetween for enclosing said food pieces on more than one side of each piece to heat the adjacent surfaces of each food piece so as to toast, brown or crisp them when exposed to microwave energy within a microwave oven by direct transfer of heat from the microwave recep-tive sheet to the surfaces of the food pieces.
Patent CA-1336523-C (CA)
Inventor: NAKAMURA HIDEO
IPC: C08G59/14
Filed: 1989-04-03
Granted: 1995-08-01
Abstract: There is provided a process for preparing a novel polyol resin which contains substantially no epoxy group by subjecting a bisphenol type epoxy resin (a) having epoxy groups and secondary or tertiary hydroxyl groups to the following steps: i)  the step wherein epoxy groups are reacted with a compound having one active hydrogen in its molecule (c), and (ii)  the step wherein secondary or tertiary hydroxyl groups are at least partly esterified.  The resulting polyol resin is flexible, crosslinkable and stable and is useful as a polyol component of a polyurethane paint.
Patent CA-1317707-C (CA)
Title: Wash cycle fabric conditioning compositions
Inventor: HARMALKER SUBHASH P
IPC: D06M13/248
Filed: 1989-05-02
Granted: 1993-05-18
Abstract: I.R. 4517 WASH CYCLE FABRIC CONDITIONING COMPOSITIONS         ABSTRACT OF THE DISCLOSURE     Fabric conditioning compositions which impart softness and antistatic properties are provided for through-the-wash use in conjunction with machine dryers.  The fabric conditioning compositions comprise complexes of specified tertiary amines and multi-functional carboxylic acids in combination with unreacted amine, the latter being present in an amount of at least 20% of the stoichiometric amount of tertiary amine required to form the complex.
Patent CA-1311985-C (CA)
Title: Fire control valve
Inventor: GRAY CHARLES H JR
IPC: A62C2/04
Filed: 1989-05-09
Granted: 1992-12-29
Abstract: ABSTRACT OF THE DISCLOSURE          A fire control valve and more particularly a valve installed in the flow line of a flammable or other hazardous flowable material which is normally open but will be automatically closed to interrupt the flow of flammable or hazardous material to a discharge point in the event of a hazardous condition occurring.  The valve is held in an open position by a fusible link which retains a spring biased pin in engagement with a spring biased valve stem to retain the valve in open position.  The fusible link will melt when subjected to predetermined conditions such as a high temperature condition which occurs in the event of a fire thereby releasing the pin and valve for movement to a closed position for stopping flow of flammable material in order to control the fire or other hazardous condition.
Patent CA-1313932-C (CA)
Title: Low density extruded foam having high compressive strength
Inventor: ALLEN RICHARD B
IPC: B32B5/20
Filed: 1989-05-18
Granted: 1993-03-02
Abstract: LOW DENSITY EXTRUDED FOAM HAVING HIGH COMPRESSIVE STRENGTH                 ABSTRACT OF THE DISCLOSURE A low density extruded structural foam of closed cell structure having good compressive strength comprising a engineered thermoplastic resin, alone, or containing a flame retarding agent and/or nucleating agent, optionally combined with a vinyl aromatic resin, and a blowing agent is produced by feeding said resin, or composition, into a primary extruder wherein mixing, adding a blowing agent which is essentially insoluble in the resin at room temperature but soluble in the melt and fur her mixing, then optionally passing the mixture to a second, cooling extruder, passing said extruded mixture through a die, then expanding and foaming said composition into a foam article.
Patent CA-1315751-C (CA)
Title: Apparatus for minimizing foam in filling containers
Inventor: CORNIEA DONALD G
IPC: B65B39/02
Filed: 1989-05-19
Granted: 1993-04-06
Abstract: ABSTRACT OF THE DISCLOSURE Apparatus for dispensing a predetermined quantity of product liquid into a series of cartons in sequence is described.  The apparatus includes a discharge valve arrangement that direct  the liquid obliquely against the wall of the carton to reduce the tendency to produce foam.  Also, the apparatus includes a bellows and valve system for controlling the flow of liquid to the discharge valve.  A method of operating the system that is described minimizes the liquid pressure differential at the discharge valve when the valve opens.
Patent CA-1325741-C (CA)
Inventor: KALMANASH MICHAEL
IPC: G02B5/30
Filed: 1989-06-26
Granted: 1994-01-04
Abstract: INFRARED FILTER USING CHOLESTERIC LIQUIDS                ABSTRACT OF THE INVENTION A high precision optical filter includes a wideband filter element and a cholesteric liquid crystal notch filter element.  In one embodiment, a wideband infra-red filter blocks infrared wavelengths beginning at a nearly visible corner wavelength and a cholesteric liquid crystal filter blocks transmission of infrared wavelengths in a precise narrow band that includes the corner wavelength and that extends down to visible wavelengths.  The liquid crystal filter may include a polymer for maintaining maximum reflectivity of the filter near the corner wavelength over an anticipated operating temperature range.  The combined optical filter may be fabricated by depositing a matched pair of liquid crystal cholesteric films on a glass infrared filter element.  In another embodiment, an optical filter according to the invention forms an eyepiece in a night vision goggles assembly for blocking visible light.  The filter may also be mounted on a display device to block the transmission of undesirable infrared emissions at the source.
Patent CA-1325606-C (CA)
Inventor: BLOOD NEIL J
IPC: B01D35/15
Filed: 1989-08-25
Granted: 1993-12-28
Abstract: ABSTRACT          A filter for filtering fluid flowing in either direction  comprising  a  block  having  first  and  second peripheral ports with a forward line of flow through said block  from  the  first  peripheral  port  to  the  second peripheral port, and a reverse line of flow through said block  from  the  second  peripheral  port  to  the  first peripheral port. A first check valve and a first filter element being disposed in the forward line of flow to only allow fluid flow in the forward direction through the first filter element, and a second check valve and a second filter element disposed in the reverse line of flow to only allow fluid flow in the reverse direction through the second filter element.
Patent CA-1338296-C (CA)
Title: Thermoplastic molding compositions of aromatic polyether sulfone and hydrogenated nitrile rubber
Inventor: EICHENAUER HERBERT
IPC: C08L81/06
Filed: 1989-09-13
Granted: 1996-04-30
Abstract: Thermoplastic molding compositions of A) 70 to 99.5% by weight of a thermoplastic aromatic polyether sulfone or mixtures of several thermoplastic polyether sulfones and B) 30 to 0.5% by weight of a hydrogenated nitrile rubber.  It has been found that mixtures of thermoplastic aromatic polyether sulfones and hydrogenated nitrile rubbers show high toughness, good processability and high weathering resistance and may be used for example for exterior parts of motor vehicles.