baber/WOPTO huggingface dataset:
Patent CA-2067578-C (CA)
Title: Epitaxially grown compound-semiconductor crystal
Inventor: HATA MASAHIKO
IPC: H01L29/778
Filed: 1992-04-29
Granted: 2002-09-03
Abstract: An epitaxially grown compound-semiconductor crystal comprising a substrate, a buffer layer formed directly or indirectly on the substrate, and an active layer formed on the buffer layer. The buffer layer comprises (A) a high-resistivity AlGaAs or AlGaInP layer doped with oxygen or/and a transition metal and, formed thereon, (B) a layer consisting of high-purity GaAs, InGaP, or AlGaAs.
Patent CA-2070291-C (CA)
Title: Automatic data restoral for modems
Inventor: SCHROEDER STEPHEN
IPC: H04M11/00
Filed: 1991-01-03
Granted: 1995-07-25
Abstract: This invention relates to the automatic restoral of data transmission by monitoring line degradation and switching to new lines (36, 38) when line quality falls below a prescribed standard. Data transmission is maintained on the leased lines (8, 10) while communication is being established on the dial lines (36, 38) so as not to disrupt data transmission. Energy is maintained on the dial lines (36, 38) at times when data is not being transmitted to prevent a change of channel on the dial lines (36, 38). A signal processor (30), associated memory (32), and analog interface circuitry (80) provide the data restoral functions. Control of the restoral procedure is handled by one modem (e.g., the calling modem (2)), and commands are sent to the other modem over either the leased lines (8, 10) or dial lines (36, 38). Communication is established across two leased lines (8, 10) and two dial lines (36, 38) in the dual line modulation mode and across one leased line (8) and one dial line (36) in the single line modulation mode.
Patent CA-2071104-C (CA)
Inventor: HONMA SHIRO
IPC: B32B27/08
Filed: 1992-06-12
Granted: 1998-12-01
Abstract: ABSTRACT OF THE DISCLOSURE      The laminate of the invention comprises a substrate and a resin surface layer having a glossiness of not less than 60 % when measured at an incidence angle of 60° laminated on at least one side surface of the substrate, and the substrate is formed from at least one cycloolefin polymer (A) selected from the group consisting of a random copolymer (a-1) of specific cycloolefin and ethylane, a ring opening polymer (a-2) of specific cycloolefin, a ring opening copolymer (a-3) of specific cycloolefin and a hydrogenation product (a-4) of the ring opening polymer or the ring opening copolymer, or formed from a cycloolefin resin composition (B) comprising the cycloolefin polymer (A) and crystalline polyolefin and/or an .alpha.-olefin elastomeric copolymer.  The substrate shows excellent resistance to flon gas, so that the resin surface layer is effectively prevented from occurrence of cracks caused by influence of flon gas.
Patent CA-2072449-C (CA)
Title: Device for firing ammunition
Inventor: EICH JOHANNES
IPC: F41A19/63
Filed: 1992-06-26
Granted: 2003-04-08
Abstract: The device for firing ammunition has a combustion chamber (3) which accommodates several propellant charge bodies (11) containing a propellant charge (21) and an ignition means (35) for the ignition of the propellant charge (21). There is provided at the combustion chamber (3) a fixed primary coil (17) which receives an ignition signal, while in each propellant charge body (11) there is arranged a secondary coil (31) which is connected to the ignition means resistor (33) initiating the ignition means (35). The temporally variable magnetic field generated by the primary coil passes through the combustion chamber (3) and induces a current in the secondary coils (31) in each of the propellant charge bodies at the same time, so that the ignition means (35) of all the propellant charge bodies are activated simultaneously and all the propellant charges (21) ignite at once. Due to the simultaneous ignition of the propellant charge bodies, rapid firing sequences can be achieved.
Patent CA-2077957-C (CA)
Title: Savings box
Inventor: SUZUKI TOORU
IPC: G06F13/00
Filed: 1992-09-10
Granted: 1996-06-18
Abstract: The present invention aims at providing a savings box enjoyable to see.      A partition 3 is provided in the internal space of a box body 1 to divide the internal space thereof into two spaces. There is formed in the partition 3 a cut 311 to provide a communication between the two spaces. A window 2 is formed in the front plate of the box body 1 which faces the partition 3 and a mirror 5 is provided on the partition 3. A camouflaging member 6 is provided on the mirror 5 and a compartment 7 is so provided below the camouflaging member 6 to cover the cut 311. An optical member 78 is provided at an opening 76 in the compartment 7. A coin 16 is thrown into the compartment 7 from a coin slot 100 formed in the box body 1. When viewed through the optical member 78, the coin 16 put in the box body 1 is seen as if it were reduced in size. Although the coins 16 are actually placed in the compartment 7 and reception space 4, they are seen as if they counted a larger number than the capacity of the compartment. Namely, this savings box is enjoyable to see.
Patent CA-2078050-C (CA)
Title: Cycloolefin resin composition
Inventor: NAKAGAWA TAKASI
IPC: C08L23/08
Filed: 1992-09-11
Granted: 2001-07-24
Abstract: The cycloolefin resin compositions of the present invention comprise: [A] cycloolefin resin selected from (a-1) a cycloolefin random copolymer having recurring units derived from a cycloolefin of a specific structure, (a-2) a ring opening (co)polymer of the cycloolefin, (a-3) a hydrogenation product of the ring opening (co)polymer and (a-4) a graft-modified product of the random copolymer (a-1), the ring opening (co)polymer (a-2) and the hydrogenation product thereof (a-3);   [B] at least one of (b-1) an unmodified elastomer, (b-2) a modified elastomer, (b-3) an unmodified crystalline polyolefin and (b-4) a modified crystalline polyolefin; and [C] a polyamide resin. Molded products formed from these cycloolefin resin compositions are excellent particularly in resistance to greases.
Patent CA-2078829-C (CA)
Title: Production of thermoplastic resin having high impact resistance
Inventor: YACHIGO SHINICHI
IPC: C08F279/00
Filed: 1992-09-22
Granted: 2003-01-21
Abstract: In a process for producing a thermoplastic resin by emulsion polymerization using a conjugated dime rubber, an aromatic vinyl compound and a vinyl cyanide compound, and by successive flocculation and direct pelletizing, the direct pelletizing is effected in the presence of a phenolic compound represented by   wherein R1 and R4 are each hydrogen or methyl, and R2 and R3 are each an alkyl of 1 to 9 carbon atoms. The use of the phenolic compound is effective to prevent the resin from thermal deterioration during the direct pelletizing, thereby producing the thermoplastic resin excellent in properties such as impact resistance.
Patent CA-2079954-C (CA)
Title: Process for preparing catalysts for the polymerization of olefins; catalysts thus obtained and process using these catalysts for the polymerization of olefins
Inventor: KOCH BENOIT
IPC: C08F10/00
Filed: 1992-10-06
Granted: 2003-04-15
Abstract: Mfr. of an olefin polymerisation catalyst comprises; (a) a mixt. as a support contg. at least one cpd. A chosen from oxides of gps. IVb and IIIa, IVa elements with at least one chromium salt. (b) preactivation of the mixt. by heat in an oxidising atmos. at a temp. less than the fusion temp. of the chromium salt to give a precursor. (c) activation of this precursor by calination in oxidising atmos. in the condition that part of the chromium is coverted to hexavalent chromium. The support, pref. contains a cpd. A, for example, silica, alumina, aluminium phosphates or mixts. of these. It is also pref. that the support contains at least one cpd. B having an element from gp. IVb and IIIa and the cpd. B is different from A. Cpd. A is a particle bed in the support and is treated with a gas comprising cpd. B during fluidisation. Cpd. B is pref. TiCl4. After treatment, the mixed cpd. formed is preactivated. Chromium salts are organic salts, pref. chromium acetylacetonate present at 0.05-10% by wt. ratio to total mixt..
Patent CA-2084538-C (CA)
Inventor: XU JIANGUO
IPC: F25J3/04
Filed: 1992-11-12
Granted: 1995-02-07
Abstract: The present invention is a liquid nitrogen reflux means improvement capable of allowing the operation of conventional dual and triple reboiler air separation cycles at elevated pressures. The improvement comprises: (a) further compressing and cooling another portion of the compressed, essentially impurities free, feed air, thereby producing a further compressed second portion; (b) removing and increasing the pressure of a portion of the liquid oxygen bottoms of the second column and heat exchanging the increased pressure liquid oxygen bottoms against at least a fraction of the further compressed second portion of step (a) so that upon heat exchange the fraction of the further compressed second portion of step (a) is at least partially condensed and the increased pressure liquid oxygen bottoms portion is at least partially vaporized; (c) feeding the at least partially condensed fraction of step (b) to at least one of the two distillation columns; (d) warming the at least partially vaporized oxygen of step (b) to recover refrigeration; (e) compressing a portion of the gaseous nitrogen product and cooling it to a temperature near its condensation temperature by heat exchange against warming process streams; and (f) condensing the cooled, compressed gaseous nitrogen product portion of step (e) and feeding the condensed nitrogen portion as reflux to at least one of the distillation columns.
Patent CA-2097504-C (CA)
Inventor: MAZZELLA MICHEL
IPC: H04B7/204
Filed: 1992-10-01
Granted: 1998-05-12
Abstract: This invention relates to a low-orbit satellite system for communication directed at terminals, in which the beams (12) of each cover (14) are lighted in accordance with a spatial sweep called "beam-hopping." For each satellite and for each terminal, emission and reception are separated in time and synchronized, with temporal duplexing being used. Application principally in the area of space telecommunications.
Patent CA-2110437-C (CA)
Inventor: RENAUT PATRICE
IPC: A61K31/16
Filed: 1993-12-01
Granted: 1999-04-13
Abstract: The present invention relates, by way of novel industrial products,  to compounds which are structurally related to 15-deoxyspergualin.  These novel compounds have the formula (see fig. I) in which:       - n is equal to 6 or 8 and - A is a single bond,  CH2,  CHF,  CH(OH), CH-(OCH3), CH2NH or CH2O, and their addition salts.        These novel  compounds  are useful  as immuno-suppressants.
Patent CA-2114080-C (CA)
Inventor: MUSCATO ROBERT
IPC: F25D21/06
Filed: 1994-01-24
Granted: 1997-12-30
Abstract: A device for transmitting a heating or cooling medium to a moving substrate which includes at least one continuous channel traversing at least a major portion of the width of the moving substrate for converting a multidirectional flow of the heating or cooling medium into a unidirectional flow, a device for removing and/or preventing the presence of foreign matter within the channel, and ovens and freezers employing the same.
Patent CA-2117797-C (CA)
Inventor: KOTZIN MICHAEL D
IPC: H03G3/20
Filed: 1994-02-07
Granted: 1999-08-24
Abstract: Procédé et appareil de réception d'un rayonnement électromagnétique dans une bande de fréquence donnée. La réception se fait en interceptant ledit rayonnement dans la bande de fréquence et en le convertissant en un signal électrique (102). Une partie dudit signal (102) est ensuite transformée (104) en signaux numériques (112, 113, 114). Chacun des signaux numérisés (112, 113, 114) représente le rayonnement électromagnétique intercepté à l'intérieur d'une portion de la bande de fréquence. Finalement, un signal numérique composite (118) est produit (116) à partir d'au moins deux des signaux numérisés (112, 113, 114). Dans une variante, le procédé de réception peut être amélioré en interceptant (188) un premier rayonnement électromagnétique (192) situé dans une portion de la bande de fréquence et en interceptant (190) un second rayonnement électromagnétique situé dans une autre bande de fréquence. Le premier et le second rayonnement (192, 194) sont ensuite combinés (196) en une onde composite de rayonnement électromagnétique (198). Ladite onde (198) est convertie en un signal électrique qui peut être transformé par traitement (204) en signaux numérisés (206, 208) formant un signal composite numérisé (118).
Patent CA-2120972-C (CA)
Title: Slope and skew hanger connectors
Inventor: SAHNAZARIAN GEORGE
IPC: E04B7/06
Filed: 1994-04-11
Granted: 2005-05-31
Abstract: A sheet metal slope and skew hanger connector has first and second side support members located at opposite sides of a backplate and being bendable relative to the backplate. Each of the side support members is formed with a pair of parallel ribs extending along a marginal edge portion thereof and with nail holes in each of the ribs to facilitate nailing of the connector to a first wood member, the nail holes extending through the connector at laterally outermost sides of the ribs. The connector includes a seat base extending from a bottom portion of the backplate for supportingly engaging an underside of a second wood member, with a pair of seat sides extending from opposite sides of the seat base, and a pair of tab members spaced apart from one another with a portion of the backplate therebetween, with nail holes in the tab members to facilitate nailing of the tab members to the opposite side faces of the second wood member.
Patent CA-2126834-C (CA)
Inventor: WILHELM FREDERICK CARL
IPC: C07C209/14
Filed: 1994-06-27
Granted: 1997-12-09
Abstract: This invention relates to a process for producing a non-equilibrium distributionof methylamines by the catalyzed reaction of methanol and/or dimethyl ether withammonia and by the catalytic reforming of a methylamine containing feedstock. One process selectively affords a reaction product enriched in mono and dimethylamines and low in trimethylamine, at high conversion of methanol or dimethylether. A variation of the process effects reforming a methylamine containing feedstock, optionally containing ammonia over a catalyst. The key to achieving this low TMAselectivity at high conversion resides in the use of a microporous zeolite, preferably chabazite, catalyst having a geometric selectivity index (GSI) less about 3, a shape selectivity index (SSI) greater than about 5 and a sorption capacity for 1-PrOH of at least 0.5 mmol/g.
Patent CA-2131710-C (CA)
Title: Shielded vehicle brake
Inventor: SIEGRIST ERIC
IPC: F16D65/02
Filed: 1993-03-17
Granted: 2003-09-09
Abstract: The present invention relates to a vehicle brake and hub (2) comprising a ring braking member (4) having cylindrical brak-ing surfaces (6, 8) both to the interior and exterior of the member in combination with a hub (14). The hub includes fan blades (22) which cause, during rotation of the hub (14), an axial flow of air to move through and to extract heat from the fan blades (22). A shield (50) is provided immediately adjacent and spaced from the interior braking surface (6) to separate the braking sur-face from the air flow. Heat energy is transferred principally by radiation to the shield (50) from braking surface (6), which heat energy is subsequently transferred to the air flow. The shield (50) protects the braking surface (6) from dirt, water or other con-taminates which could reduce the effectiveness of the interior braking surface (6).
Patent CA-2137889-C (CA)
Title: Eburnan analogs; process for preparing the same and pharmaceutical compositions containing them
Inventor: BRION JEAN-DANIEL
IPC: C07D471/22
Filed: 1994-12-12
Granted: 2002-03-12
Abstract: Compounds of general formula (I): <IMAGE>  in which A represents a divalent radical chosen from <IMAGE> and R1, R2, R3, R4, R5, R6, R7, R8, R9 and Z are as defined in the description. Medicaments.
Patent CA-2145618-C (CA)
Inventor: MARANGOS PAUL J
IPC: A61K31/7008
Filed: 1995-03-27
Granted: 1999-11-23
Abstract: A method is disclosed for reducing excitotoxic damage to neurons, which can occur as a result of stroke, cardiac arrest, or other events or conditions. This method involves administering an aminoglycoside that suppresses the flow of calcium ions into neurons through N-type calcium channels. To be effective for such use, an aminoglycoside must suppress N-channel activity at a potency greater than streptomycin.      Aminoglycosides which meet this criterion (which includes neomycin and Gentamicin) can suppress the depolarizing activation of neurons, which in turn controls the release of glutamate, a neurotransmitter that becomes an endogenous toxin under excitotoxic conditions. Numerous aminoglycosides were tested in in vitro screening tests using brain cell membrane fragments to evaluate N-channel blocking potency.      Aminoglycosides with the highest N-channel blocking potency were then tested using (1) in vitro tests on hippocampal brain tissue, to evaluate recovery of neuronal activity after a period of oxygen deprivation; (2) in vivo tests to evaluate the control of induced seizures in intact adult mammals: and (3) in vivo tests to evaluate the reduction of brain damage due to surgically-induced ischemia in intact adult mammals. The results showed that (1) aminoglycosides which are more potent than streptomycin in blocking N-channel ion flow are effective in reducing excitotoxic brain damage, without causing undesired side effects, and (2) the effectiveness of all BBB-permeable aminoglycosides tested to date in preventing excitotoxic brain damage is directly correlated with their potency in suppressing N-channel activity. Evaluation of chemical structures also indicates a correlation between the number of primary amino groups on an aminoglycoside, and its potency as an N-channel blocker and neuroprotective agent.
Patent CA-2147856-C (CA)
Inventor: JINKERSON DAVID L
IPC: A61L27/16
Filed: 1994-10-11
Granted: 1999-04-27
Abstract: L'invention concerne de nouveaux colorants polymérisables. Lesdits nouveaux colorants et des colorants connus sont utilisés pour bloquer ou abaisser l'intensité de la lumière bleue traversant les implants oculaires et d'autres types de lentilles.
Patent CA-2149711-C (CA)
Inventor: MOEGLING GERD
IPC: C03B5/237
Filed: 1995-05-18
Granted: 1999-03-30
Abstract: A  cylindrical,  refractory,  hollow  brick comprises eight external surface portions disposed at an angle to one another with four corner wall regions connected together by four  interlying wall  regions, such that, when the hollow brick is rotated through 90° about a central longitudinal axis thereof, the original geometry is reattained.
Patent CA-2150100-C (CA)
Title: Electrical connection for track lighting
Inventor: KUCHAR JAMES
IPC: H01R25/14
Filed: 1995-05-24
Granted: 2006-11-28
Abstract: Described is an improved electrical connection suitable for track lighting which is comprised of a novel, formed conductive buss structure having a hairpin curve shape cross-section forming a groove for firmly holding a conductive blade to provide physical and electrical integrity of the connection thereby.
Patent CA-2151854-C (CA)
Inventor: LEVI FERRUCCIO
IPC: B61B12/12
Filed: 1995-06-15
Granted: 2005-11-22
Abstract: In order to operate both arms (21, 22) of the clamp (15) with the same force and at the same time, the guide carrier element (23), which comprises two longitudinal surfaces (26, 36) on which the free ends of the movable jaws (41, 42) slide, is formed in one piece and can move vertically transverse to said free end so as to be instantaneously and automatically self-centering about them and hence about the clamp (15).
Patent CA-2152505-C (CA)
Title: Method for preparing a viral aerosol
Inventor: SENE CLAUDE
IPC: A61K35/76
Filed: 1994-10-26
Granted: 2005-04-26
Abstract: A method for preparing a viral aerosol from a dilute viral suspension prepared by dissolving a virus in an aqueous solution containing 6-12 g/l of a monovalent cation salt, or 50-100 g/l of a hexose, which is then nebulised with a gas pressure of 0.5-3.5 bars or an ultrasonic frequency of 2-5 MHz. The resulting aerosol composition is also disclosed.
Patent CA-2152663-C (CA)
Inventor: FIELD BRADLEY J
IPC: F41H1/02
Filed: 1995-06-26
Granted: 2002-10-08
Abstract: Soft body armour has a ballistic panel having an interleaved construction of a generally vertically oriented plurality of layers of interleaved sheets of aramid fibre cloth and sheets of Spectra Shield adjacently interleaved in an interleave ratio of plies of Spectra Shield to plies of aramid fibre cloth within each layer of the plurality of layers, the plurality of layers forming a non-quilted array between a front face of the ballistic panel and a back face of the ballistic panel, wherein the interleave ratio of plies of Spectra Shield to plies of aramid fibre cloth within each layer of the plurality of layers is between 1:1 and 4:4, and wherein the total number of the plies of Spectra Shield is equal to or greater than the total number of the plies of aramid fibre cloth within the plurality of layers.
Patent CA-2155541-C (CA)
Title: Process to improve alkyl ester sulfonate surfactant compositions
Inventor: SHERRY ALAN EDWARD
IPC: C11D1/28
Filed: 1994-01-28
Granted: 1999-04-06
Abstract: A process for improving the color and purity of dark-colored potassium or magnesium alkyl ester sulfonate surfactant compositions, and particularly alpha-sulfo fatty acid methyl ester compositions, without the need for bleaching or other process steps. The process comprises the steps of (1) forming a mixture comprising (i) an alkyl ester sulfonate surfactant composition containing impurities including dark-colored impurities organic and inorganic salts, and disalts, and (ii) water, and (2) separating the ester sulfonate surfactant from the mixture. The process may further comprise step (3) recovering the alkyl ester sulfonate surfactant. Methyl ester sulfonate surfactant compositions are most preferred. After processing in accordance with the invention, the alkyl ester sulfonate surfactant composition has improved color, purity, and odor properties.
Patent CA-2157327-C (CA)
Inventor: KALVERKAMP KLEMENS
IPC: A01D33/08
Filed: 1995-08-31
Granted: 2006-08-01
Abstract: The screen conveyor for root crop harvesters comprises an endless screen belt conveyor, which consists of at least two conveyor belts and transverse conveying rods fastened to the conveyor belts and rotates about deflection rollers which are rotatably mounted in a housing and of which at leash one group can be driven by a driving mechanism by coaxially disposed deflection rollers. For this purpose, at least one adjuster is provided, which can be shifted into position against the working half of the screen conveyor belt and specifies a changing course for the working half of the conveyor belt by forming a step.
Patent CA-2160068-C (CA)
Inventor: EYER MARK
IPC: H04N7/167
Filed: 1995-10-06
Granted: 2001-05-01
Abstract: Limited duration previews of program offerings available for purchase via a communication network are provided in a cryptographically secure manner at virtually any time during the service. The invention has particular applicability to the provision of video services on a pay-per-view basis. Such a video service is provided during a program epoch. A fixed period is defined during the program epoch when portions of the video service are available for viewing on a preview basis. A consumer is allowed to preview, without purchase, portions of the video service at any time during the fixed period for up to a maximum preview duration that is shorter than the fixed period. The consumer can then purchase the video service for viewing during the program epoch after previewing portions thereof. A plurality of records is maintained to service different previewable programs concurrently.