baber/WOPTO huggingface dataset:
Patent CA-1280742-C (CA)
Title: Heat exchanger
Inventor: WILSON JAMES C JR
IPC: F24H3/06
Filed: 1989-07-14
Granted: 1991-02-26
Abstract: ABSTRACT OF THE INVENTION     The present invention in it's most simple form or embodiment is directed to a heat exchanger which provides for at least two heat exchange surfaces. The two heat exchange surfaces are defined by an inner wall or inner shell which separates a combustion region or combustion passage and at least one fluid passage defined by the inner shell, and an outer wall or outer shell. The space defined between the inner and outer shells being the combustion region or combustion passage. The combustion chamber is configured to provide for full and efficient fuel combustion without any flat surfaces upon which a flame of combustion could impinge. Because of the nature of the construction, the flame forms into a fan configuration allowing thorough mixture with the combustion air and thus providing for complete and efficient combustion.
Patent CA-1311608-C (CA)
Title: Optical alignment system
Inventor: LUCE DAVID A
IPC: A61B3/16
Filed: 1989-07-21
Granted: 1992-12-22
Abstract: OPTICAL ALIGNMENT SYSTEM                   ABSTRACT OF THE DISCLOSURE         An optical alignment system using at least one CCD array for positioning an instrument in a chosen relationship to an object is disclosed.  Means for "electronically" aligning the optical components and providing a macro view of the object on a CRT without additional illumination are also disclosed.  Align-ment may be achieved manually,  if the operator observes the position of symbols on a CRT that move in response to movement of  the  instrument  by  the  operator  using  a  joystick,  or automatically using information provided by the array.
Patent CA-1335383-C (CA)
Title: Apparatus and method for providing assay calibration data
Inventor: DONOHUE JOSEPH P
IPC: G01N35/00
Filed: 1989-08-02
Granted: 1995-04-25
Abstract: A semi-automated biological sample analyzer and subsystems are provided to simultaneously perform a plurality of enzyme immuno assays for himan IgE class antibodies specific to a panel of preselected allergens in each of a plurality of biological samples.  A carou-sel is provided to position and hold a plurality of reaction cartridges.  Each reaction cartridge includes a plurality of isolated test sites formed in a two dimensional array in a solid phase binding layer con-tained within a reaction well which is adapted to con-tain a biological sample to be assayed.  The carousel and cartridges contain structures which cooperate to precisely position the cartridges in each of three separate dimensions so that each cartridge is posi-tioned uniformly.  An optical reader operating on a principle of diffuse reflectance is provided to read the results of the assays from each test site of each cartridge.  Also provided is a subsystem which provides predetermined lot-specific assay calibration data which is useful for normalizing the results of various assays with respect to predetermined common standard values.
Patent CA-1319294-C (CA)
Inventor: KIPPHAN HELMUT
IPC: B41F33/00
Filed: 1989-08-11
Granted: 1993-06-22
Abstract: ABSTRACT OF THE DISCLOSURE            In a process for the monitoring of the damping in an offset printing press, non-printed areas in the region of edges of specified inked area are scanned with the aid of an opto-electric receiver and the signals generated by such scanning are evaluated.  Preferably, the scanning is performed on full-tone fields of a print-check strip.  The process is suitable both for the monitoring and also for the automatic control of the damping.
Patent CA-1333428-C (CA)
Inventor: BAUER RICHARD G
IPC: C08G81/02
Filed: 1989-09-12
Granted: 1994-12-06
Abstract: It is desirable to increase the modulus of rubbers utilized in a wide variety of applications.  This invention discloses a technique for modifying rubbers to improve their modulus without sacrificing other properties.  The subject invention more specifically relates to a process for preparing a rubber composition having a high modulus which comprises reacting at least one thio acid with at least one polydiene rubber and at least one nylon.
Patent CA-1336094-C (CA)
Title: Aromatic carboxylic acid derivatives and the use thereof for controlling undesirable plant growth
Inventor: RHEINHEIMER JOACHIM
IPC: C07D251/30
Filed: 1989-09-12
Granted: 1995-06-27
Abstract: Aromatic carboxylic acid derivatives of the formula                 (I), in which the radical   is a substituted or unsubstituted quinoline, naphthalene   or benzofuran radical, R1 is hydrogen, alkylidenaminoxy, unsubstituted or substituted cycloalkylidenaminoxy, succinyliminoxy, unsubstituted or substituted alkenyloxy, alkynyloxy, azolyl, alkylsulfonylamino, alkoxycarbonyl-alkyloxy, N-azolylalkyloxy, unsubstituted or substituted alkoxy, unsubstituted or substituted phenylalkoxy, hydroxyl or the radical O?M? M? being one equivalent of an alkali metal, alkaline earth metal or organic ammonium ion, R2 and R3 are alkyl, haloalkyl, alkoxy, haloalkoxy or alkylthio, X is oxygen or sulfur, and one of Y and Z is nitrogen and the other is the methine group, and R4 and R5 are hydrogen, halogen, alkyl, haloalkyl, nitro, alkoxy, unsubstituted or substituted alkenyloxy, acylamino, alkylamino, dialkylamino or arylamino, and their use for controlling the growth of unwanted plants.
Patent CA-1324490-C (CA)
Inventor: KOSS GEORGE A
IPC: C03B29/08
Filed: 1989-09-21
Granted: 1993-11-23
Abstract: ABSTRACT OF THE DISCLOSURE     A glass treating apparatus suitable for heating glass sheets, such as in a process of forming curvo-planar vision units, e.g. motor vehicle windshields, comprises a modular support structure and heater means supported by the modular support structure. The heater means comprises a multi-planar heating surface subdivided into a plurality of heating zones.  The heating zones are individually controlled.  The multi-planar heating surface can approximate the configuration of the glass sheet.  The invention allows preferential heating of selected zones of the glass sheet.  One or more such modular radiant heater assemblies can be used in a glass forming process.
Patent CA-1302922-C (CA)
Inventor: OWADES JOSEPH L
IPC: C12C5/02
Filed: 1989-09-27
Granted: 1992-06-09
Abstract: PROCESS FOR PRODUCING A MALT BEVERAGE HAVING IMPROVED    FOAMING PROPERTIES AND PRODUCT PRODUCED THEREFROM             ABSTRACT OF THE DISCLOSURE     The foaming properties of a brewed malt beverage are improved by adding to the beverage during the normal brewing process a measured quantity of ginseng.
Patent CA-1305175-C (CA)
Inventor: HOOVER DENNIS J
IPC: C07K5/00
Filed: 1991-01-04
Granted: 1992-07-14
Abstract: ABSTRACT OF THE DISCLOSURE Disclosed are the compound N-t-butoxycarbonyl-(S)-3-amino-(R)-2-hydroxy-4-phenylbutyronitrile of the formula:                                                           (4)   and a production process thereof which comprises reacting N-t-butoxycarbonyl-L-phenylalaninal with potassium cyanide and separating the said 2-(R) epimer from the corresponding 2-(S) epimer.  The novel compound is useful for producing the moiety including (S)-cyclohexylmethyl group of oxo- and azahomocyclo-statine polypeptides of the formula:       (1) [wherein R1 is hydrogen or methyl; X is oxygen, amino, alkylamino, cyclohexylmethylamino, benzylamino, omega aminohexylamino or methoxycarbonylmethylamino; and R2 is LysPhe, LysPhe-methyl ester, LysPhe amide, LysSta, amino, alkylamino, alkyl, 4-imida-zolylethylamine, omega-aminohexylamino, benzyloxy, omega-cyanopentylamino or a reduced IlePhe].  These polypeptides have renin-inhibiting activity and are useful for the treatment of hypertension and congestive heart failure.
Patent CA-1317670-C (CA)
Inventor: LENDARO JEFFERY B
IPC: H03L7/08
Filed: 1991-12-12
Granted: 1993-05-11
Abstract: ABSTRACT A phase-lock-loop circuit of a two-loop deflection arrangement is located in a first integrated circuit.  The phase-lock-loop circuit generates a first signal at 32XfH that is capacitively coupled to a tank circuit.  A regenerative amplifier stage that is located in a second integrated circuit has an input terminal that is coupled to the tank circuit and an output terminal for producing a second signal.  During normal operation, the second signal is synchronized to the first signal.  The second signal is utilized in a phase-control-loop circuit of the two-loop deflection arrangement for generating a synchronized deflection current in a deflection winding.
Patent CA-1341086-C (CA)
Title: Thermally stable and ph stable subtilisin analogs and method for production thereof
Inventor: STABINSKY YITZHAK
IPC: C11D3/386
Filed: 1987-01-14
Granted: 2000-08-15
Abstract: A mutated subtilisin suitable for admixture to washing compositions and exhibiting substantially improved stability over naturally occurring Bacillus serine proteases is prepared by expressing a modified gene encoding subtilisin in Bacillus subtilis. A preferred subtilisin analog product differs from wild-type Bacillus alkaline proteases by having an amino other than asparagine at position 218 in place of asparagine.      The product is preferably produced in a strain of B. subtilis which is mutated to block synthesis of endogenous proteases. The method of replacing an Asn or a Gly in an Asn-Gly sequence in order to improve pH and thermal stability may be applied to other sites in subtilisin and to other proteins as well.
Patent DK-152364-C (DK)
Inventor: CHEKROUN ISAAC
IPC: C07D333/20
Filed: 1982-06-24
Granted: 1988-08-15
Abstract: The present invention provides a multistep process for the preparation of 2-(thien-2-yl)- and 2-(thien-3-yl)-ethylamine intermediates of the general formula:-    <IMAGE>  (I)  in which R1, in the 2-, 3-, 4- or 5-position, is a hydrogen or halogen atom, a nitro, amino, cyano or carboxyl group, a linear or branched alkyl or alkoxy radical or a heterocyclic or non-heterocyclic aromatic radical, which is optionally mono- or polysubstituted, R2 is a hydrogen atom, a linear or branched alkyl radical or a heterocyclic or non-heterocyclic aromatic radical, which is optionally mono- or polysubstituted, and Ar is a heterocyclic or non-heterocyclic aromatic radical, which is optionally mono- or polysubstituted, when the aminoethyl radical is in the two position and the radical R1 is in the 4- or 5-position, the above intermediates can be converted into 4,5,6,7-tetrahydrothieno[3,2-c]pyridine derivatives according to a procedure set forth in U.S. Pat. No. 4,127,580. When the aminoethyl radical is in the 3-position and the radical R1 is in the 4- or 5-position, the above intermediates can be converted into 4,5,6,7-tetrahydrothieno[2,3-c]pyridine derivatives according to a procedure set forth in U.S. Pat. No. 4,127,580. Both sets of tetrahydrothieno pyridine final products possess anti-inflammatory, vasodilator and blood platelet aggregation inhibition activity.
Patent FI-65992-C (FI)
Inventor: REGEL ERIK
IPC: C07D249/08
Filed: 1979-11-23
Granted: 1984-08-10
Abstract: The invention relates to hydroxypropyl-triazole compounds and methods for their preparation. Also included are compositions containing said hydroxypropyl-triazoles and methods for the use of the said active compounds and compositions, as antimycotic agents.
Patent FI-68685-C (FI)
Inventor: KRUEGER HORST
IPC: D21C9/16
Filed: 1981-02-09
Granted: 1985-10-10
Abstract: Cellulose is bleached by means of an organic peracid in the acid region and subsequently by means of peroxide in the alkaline region. As peracid there is employed an acid which is produced from the corresponding carboxylic acid by reaction with hydrogen peroxide in the presence of a mineral acid. The peroxide bleaching step which follows the peracid bleaching step is carried out after there is added the necessary amount of aqueous alkali solution for carrying out the peroxide bleaching step of the pulp without intermediate washing of the cellulose. A further addition of peroxide is not carried out.
Patent FI-70055-C (FI)
Inventor: POPPEL GUENTER
IPC: D21C5/02
Filed: 1982-06-07
Granted: 1986-09-12
Abstract: There is disclosed an improvement to the process for the de-inking of printed waste paper which comprises (1) treating the waste paper in a pulper at an alkaline pH with alkali silicate, an oxidatively active bleaching agent, one or more acid components selected from the group consisting of fatty acids and resinic acids containing more than 10 carbon atoms, and mixtures thereof, and a dispersing agent, and (2) separating the detached printing ink particles from the fiber suspension by either flotation, washing, or a combination thereof. The improvement comprises employing the acid and the dispersing agent in the form of an oil-in-water emulsion.
Patent FI-77093-C (FI)
Inventor: RABE KARL LARS GUNNAR
IPC: F16B15/00
Filed: 1983-05-27
Granted: 1989-01-10
Abstract: Nail-type fastener comprising an elongated shank (1) having three symmetrically positioned, longitudinal grooves (4) separated by longitudinal ridges (8) with a cross-sectional arcuate outer side (9), the grooves having flat, concave or cross-sectional V-shaped bottom surfaces (27, 17, 7). The nail has a high-flexured rigidity and high pull grip with comparatively low weight. The fastener or nail is produced starting from a cross-sectional circular nail wire stock which is profiled in two cold-rolling steps. In the first step, the nail wire passes through a first roller trio, the section rollers producing grooves into the nail wire stock. In the second step, the nail wire passes through a second roller trio, whereby a deepening of these grooves into deep grooves is brought about. Thereupon the head and the point are produced at the ends of the shank, the finished nail thereby being separated.
Patent FI-87297-C (FI)
Inventor: VAN DER LELY CORNELIS
IPC: A01C15/00
Filed: 1985-02-01
Granted: 1992-12-28
Abstract: An agricultural spreader comprises distribution members (11, 12) which rotate to eject material such as fertilizer. The spreader can tilt to one side or the other so as to reduce the spreading distance on one side. This facility enables the spreader to be driven on a field along the same tracks as other agricultural machinery while avoiding waste of material at the edges of fields. Other embodiments utilize braking members which are movable into the path of ejected material to reduce its kinetic energy and consequently its spreading distance.
Patent FI-79175-C (FI)
Inventor: HOTANEN MARTTI
IPC: F16B11/00
Filed: 1987-11-03
Granted: 1989-11-10
Abstract: A method, joint and profile bar for fixing a crossbar (3) to a border prop (2), particularly in a cable rack, according to which the crossbar is positioned with its end surface against a web plate (4) of the prop and is secured to the web plate by means of fixing elements (13) extending through said web plate. To avoid holes made in advance in the web plate, a counterpart (9) supporting the web plate in the region of the end surface of the crossbar, exclusive of the sites of the fixing elements of the crossbar, is positioned against the web plate, and the crossbar is pressed from the opposite side against the web plate so that a wall (8) of the crossbar is axially collapsed (8a) in the region supported by the counterpart, but cuts through the web plate in the regions unsupported by the counterpart and itself punches holes (12) for the fixing elements thereinto.
Patent FI-93456-C (FI)
Inventor: TOTH EDIT
IPC: C07D211/22
Filed: 1990-08-10
Granted: 1995-04-10
Abstract: 4,4-disubstd piperidine derivs of formula (I) and their acid addn and quaternary ammonium salts are new. In (I) R1 = H or C0NHR; R = H, 1-12C alkyl, 3-6C cycloalkyl or a carboxyclic 6-10C aryl or carbocycline (6-10C aryl) 1-4C alkyl opt ring substd by one or more halo, 1-4C alkyl or 1-4C alkoxy; R2 = ethynyl or C0CH3; Ph1 and Ph2 = phenyl opt substd by one or more halo, 1-4C alkyl, 1-4C alkoxy, trihalo or 0H opt esterified by a 1-4C alkansic acid; n = 1-2. - 3 Cpds (I) ie 1-(3,3-bis(4-fluorophenyl)-2-propenyl)-4 ethynyl-4-hydroxypiperidine hydrochloride, (Ib) 1-(4,4-bis(4-fluorophenyl)-3- butenyl)-4-ethynyl-4-hydroxy piperidine hydrochloride (Ia) and 1-(4,4-bis(4-fluorophenyl)-3- butenyl)-4-benzylcarbamoyloxy-4 ethynylpiperidine are specifically claimed.
Patent NO-151490-C (NO)
Inventor: GIES JAKOB
IPC: A63C11/02
Filed: 1982-06-11
Abstract: A device for carrying skis comprising a T-shaped frame member including a vertical element and a horizontal element. The horizontal element is composed first and second intermediate members each having one end pivotably connected to the vertical element at one end thereof. A pair of pressing flaps are respectively pivotably connected to the intermediate members at the ends thereof remote from the ends which are connected to the vertical element. The pressing flaps are pivotably movable between an extended horizontal position and two vertical collapsed or storage positions. In one vertical position, the intermediate members extend horizontally and in the second more compact collapsed position, the intermediate members extend substantially vertical in adjoining relation to the vertical element. A shackle is provided for engaging the flaps when they are in an orientation parallel to the vertical element.
Patent NO-168446-C (NO)
Inventor: SUNDELL GOESTA INGVAR
IPC: G06F15/16
Filed: 1985-10-28
Abstract: For achieving parallel synchronous operation between two microprocessors (1, 2) there is arranged a switch (4) controlled by a logical circuit (3), which senses the clock outputs of the microprocessors. If there is deviation from synchronism, the logical circuit (3) sends a signal to the switch (4), which then breaks off the incoming clock signal to the clock input of one microprocessor (2) such that parallel synchronism is stepwise achieved.
Patent NO-179447-C (NO)
Inventor: NAKAJIMA MASASHI
IPC: C07D201/02
Filed: 1993-03-25
Abstract: A process for producing a 4-substituted azetidinone derivative represented by the following general formula [III]: <CHEM> (wherein OR is a protected hydroxy group, Y is an alkyl group, an alkoxy group, a silyloxy group, a carbamoyloxy group, an amino group, a substituted or unsubstituted aromatic group or a substituted or unsubstituted heterocyclic group, and n is an integer of 0 or 1, provided that n does not represent O when Y is an alkoxy group, silyloxy group, carbamoyloxy group or amino group), characterized in that a 2-azetidinone derivative represented by the following general formula [I]: <CHEM> (wherein OR is as defined above, and X is an alkyl group or a substituted or unsubstituted aromatic group) is reacted with thiocarboxylic acid represented by the following general formula [II]:    HSCO-(CH2)n-Y   [II]   (wherein Y and n are respectively as defined above) in an organic solvent in the presence of copper compounds. The aforementioned method can shorten the production process compared with the prior method. It is also highly advantageous from an industrial point of view because it does not employ mercury salts.
Patent CA-2000495-C (CA)
Title: Antifouling coatings
Inventor: HUNTER JULIAN E
IPC: C09D5/16
Filed: 1989-10-11
Granted: 1999-12-07
Abstract: Fouling of a ship's hull is inhibited by an amine of the formula   where R1 is a monovalent hydrocarbon group derived from a diterpene and R2 and R3 are each independently hydrogen, an alkyl group having 1 to 18 carbon atoms or an aryl group having 6 to 12 carbon atoms. The amine acts as a paint binder and as a marine biocide. An antifouling coating composition may comprise a pigment with the said amine as binder. Alternatively an antifouling coating composition comprises as binder an acid-functional polymer whose acid groups are blocked by a monoamine group which forms an organic-solvent-soluble salt of the polymer.
Patent CA-2004310-C (CA)
Inventor: BURKE JOHN J
IPC: C11D1/722
Filed: 1989-11-30
Granted: 1995-02-21
Abstract: A clear, aqueous hard surface, essentially streak free, cleaning composition, comprising (a)    a surfactant selected from the group of (i)    polyoxyethylene/polyoxypropylene block copolymers having a number average molecular weight of from about 3000 to 7000, a percent hydro-phile content of about 10 to 60 per-cent (ii)    an alcohol ethoxylate of the formula   wherein R is an alkyl chain whose length is from about 8 to 15 carbon atoms, x is a number from about 4 to 15, y is a number from about 0 to 15, and z is a number from about 0 to 5, and mixtures thereof; and (b)    3 to 5 percent by weight organic solvents and water.  The composition may also include a synergistic amount of a polycarboxylate copolymer comprised of a combination of copolymerized monomer units, monoethylen-ically unsaturated mono- and dicarboxylic acids, diolefins and alkyl vinyl ethers.       The general structure of said copolymer is as follows:       wherein X = H, Na, or similar alkaline metals; A=H, COOH, COONa or similar salts, or an alkyl group having a chain length of 6 to 20 carbon atoms and preferably 6 to 10 carbon atoms, and m and n are numbers such that the monomer ratio is in the range of about 3:1 to 1:3 and a total average molecular weight of the copolymer is from 1,000 to 70,000.
Patent CA-2005596-C (CA)
Title: Preparation of 2-amino-4-fluoropyrimidine derivatives
Inventor: HAMPRECHT GERHARD
IPC: C07D239/46
Filed: 1989-12-14
Granted: 1998-02-17
Abstract: Abstract of the Disclosure:  A process for the preparation of 2-amino-4-fluoropyrimidine derivatives of the general formula I     (see fig. I) (R1 hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, phenyl or benzyl, it being possible for the aromatic rings to be substituted,  and R2 one of the R1 radicals with the exception of hydrogen) by reaction of 2,4, 6-trifluoropyrimidine in an aprotic polar organic solvent with an amine of the formula III to give the 2-aminodifluoropyrimidine derivative IVa mixed with the 4-aminodifluoropyrimidine derivative IVb,  separation of IVa out of the resulting reaction mixture and subsequent reaction of IVa with an alcohol in the presence of a base at from 0 to 180°C to give the 2-amino-4-fluoropyrimidine derivative I,  by carrying out the reaction of 2,4,6, -trifluoropyrimidine II with the amine III at from -80°C to -15°C,and reacting the 2-aminodifluoropyrimidine derivative IVa with the alcohol in the presence of an organic base to give the 2-amino-4-fluoropyrimidine derivative I.
Patent CA-2007738-C (CA)
Title: Multi-layer elastic sleeves for electric power cable joints and joints therewith
Inventor: VALLAURI UBALDO
IPC: H01R43/00
Filed: 1990-01-15
Granted: 1996-04-23
Abstract: An electric covering for a joint between a pair of electric cables, a device including such covering in elastically expanded condition on a rigid tubular support and electric cable joints including such covering.  The covering includes at least two elastic sleeves of cross-linked polymeric material, a first radially inner sleeve at least partly of insulating material and a second radially outward sleeve.  To permit the covering to be elastically expanded and encircling the rigid support for a long period of time, e.g. two years, the two sleeves have different mechanical properties and in particular, the material of the second sleeve has a residual deformation, which is applied by elongation over a period of time, which is less than the residual deformation, similarly applied, to the material of the first sleeve.  The covering can also include a radially innermost stress grading, elastic third sleeve of cross-linked polymeric material, and the sleeves can be in contact and bonded together at their contacting surfaces.