baber/WOPTO huggingface dataset:
Patent CA-2222621-A1 (CA)
Inventor: REMEROWSKI DAVID L
IPC: B25C1/08
Filed: 1996-06-03
Abstract: A tool for driving a nail or other fastener is actuated by a caseless propellant charge (62) formed of combustible material that is transported into a combustion chamber (44) on a strip (64). The propellant charge (62) is ignited by striking a sensitizer portion (90) of the charge at an oblique angle. The ignition member (66) intermixes the sensitizer material (90) with an oxidizer layer (88) of the surface of the propellant charge (62), resulting in combustion of the charge. When ignited, the propellant charge (62) is compressingly interposed between an orifice plate (74) and a movable portion (80) of the combustion chamber. The orifice plate (74) includes a pedestal (78) with an annular compression surface that separates the surface of the ignition area from the remaining surfaces of the charge (67), insuring that ignition gases are forced through the charge (62). An annular C-shaped ring (82) is interposed between the orifice plate (74) and the movable portion (80) of the combustion chamber (44). When the charge (62) is ignited, the resulting gas pressure resiliently expands the annular C-shaped ring (82) and urges opposite axial ends of the C-shaped ring (82) into sealing relationship between the relatively movable components of the combustion chamber. Combustion gases are communicated through orifices (76) in the orifice plate (74) to a cylinder (40) where the gases force movement of a driver (42) which driver strikes and drives a fastener such a nail. The driver (42) is reciprocally movable within the cylinder (40) and is returned to its precombustion position by a gas spring return cylinder (17). The gas return cylinder (17) is mechanically interconnected to the driver (42) and contains a sealed gaseous fluid that is independent of and segregated from fluids in the combustion chamber (44). An assembly (60) for deaccelerating the driver includes a series of spaced and aligned progressively sized metal cup members (110,112,114) of progressively increasing mass, contact surface area and interface angles.
Patent CA-2222919-A1 (CA)
Title: Paclitaxel synthesis from precursor compounds and methods of producing the same
Inventor: CHANDER MADHAVI C
IPC: C07F7/18
Filed: 1996-06-07
Abstract: A paclitaxel intermediate and a process of making the same via the condensation of a suitably protected side chain acid and a baccatin III  derivative.
Patent CA-2223168-A1 (CA)
Title: Apparatus for electrostatically depositing and retaining materials upon a substrate
Inventor: PLETCHER TIMOTHY ALLEN
IPC: A61M11/00
Filed: 1996-06-06
Abstract: A substrate (104) having a planar conductive plating (106) located on a first surface of a dielectric layer (108) and having a conductive collection trace (110) on a second surface of the dielectric layer (108) such that the conductive plating (106) and collection trace (110) have a parallel, spaced apart relation. The collection trace (110) is charged by supplying a voltage to the plating (106) and the trace (110) to establish a voltage differential across the dielectric layer (108). The material to be deposited (116) is charged to a polarity opposite that of the trace (110) so that the deposited material (102) is electrostatically retained.
Patent CA-2223811-A1 (CA)
Inventor: KARRER ROBERT B
IPC: B60R11/00
Filed: 1997-12-05
Abstract: The invention provides a rail cap for use on the wall of the cargo area of a pickup truck. The rail cap includes an elongate main body having first and second portions generally at right angles to one another, and a clamp extending along the main body. The clamp has an elongate element, a first actuator coupling the elongate element to the second portion, and operable to draw the elongate element towards the second portion, and a second actuator coupled to the elongate element and operable to push the elongate element away from the first portion. The rail cap can be assembled on the bed rail of a pickup truck without modifying the bed rail by drilling.
Patent CA-2225915-A1 (CA)
Title: Process and device for dosing the thermal output of combined heat and power generation systems
Inventor: RYHINER DANIEL G
IPC: F24D18/00
Filed: 1996-06-28
Abstract: The thermal output of a combined heat and power generation system is regulated by varying the speed of rotation while maintaining the position of the control means of the thermal engine in its maximum efficiency range. For that purpose, the thermal engine in its full load position or efficiency optimum is brought to a lower or higher speed of rotation exclusively by respectively reducing or increasing the electric current fed into the mains, so that the efficiency of the thermal engine is not substantially affected. The electric current may be maintained at the desired frequency by frequency converters.
Patent CA-2226786-A1 (CA)
Inventor: HASEI MASAHARU
IPC: G01N27/406
Filed: 1998-01-13
Abstract: There is provided a gas sensor capable of accurately controlling  the  temperature  of  the  gas  detecting electrode forming part of the gas sensor.  At least a positive leg or a negative leg of he thermocouple is connected to a detecting electrode or a counter-electrode formed on a solid electrolyte substrate and either a positive leg or a negative leg of the thermocouple is made to serve as a conductor section adated to take out an output signal from the detecting electrode.
Patent CA-2226994-A1 (CA)
Title: Inhibition of gene expression
Inventor: POULSEN PETER
IPC: C12N15/09
Filed: 1996-07-12
Abstract: A method of inhibiting gene expression is described. The method, which affects enzymatic activity in a plant, comprises expressing in a plant (or a cell, a tissue or an organ thereof) a nucleotide sequence wherein the nucleotide sequence codes, partially or completely, for an intron in a sense orientation; and wherein the nucleotide sequence does not contain a sequence that is sense to an exon sequence normally associated with the intron.
Patent CA-2227470-A1 (CA)
Inventor: DOUMET JOSEPH E
IPC: C04B7/47
Filed: 1996-07-29
Abstract: The invention is related to a method and an apparatus for producing cement clinker, in which the cement clinker is first of all burnt in a burning zone and then cooled in a cooling zone, wherein the cooling takes place at least partially by the delivery of fuel and steam, characterised in that in a first cooling phase the delivered fuel is mixed with the cement clinker and initially pyrolysed and the resulting pyrolysis products have a strong endothermic reaction with the steam, so that the cement clinker is quenched in such a way that at least 95 %, preferably all, of the liquid phase contained therein is transformed into glass.
Patent CA-2228927-A1 (CA)
Title: Generatrice auto suffisante
Inventor: MORNEAU RODRIGUE
IPC: H02K53/00
Filed: 1998-04-06
Abstract: Dans la présente invention, la génératrice à l'électricité; elle produit sa propre électricité ce qui fait tourner son moteur électrique qui lui est reliée au générateur par courroie. Elle distribue son surplus d' électricité au panneau de distribution, ou au panneau de la résidence. La génératrice peut donc fonctionner à l'intérieur des résidences sans aucun danger d'asphyxie, de feu ou explosion.
Patent CA-2228955-A1 (CA)
Title: Stabilizers for powder coatings
Inventor: NESVADBA PETER
IPC: C09D7/12
Filed: 1998-02-03
Abstract: A description is given of powder coating compositions comprising a) an organic film-forming binder and b) as stabilizer at least one compound of the benzofuran-2-one type. Powder coating compositions stabilized in this way reduce the discoloration of coatings during thermal curing, especially gas oven curing.
Patent CA-2229032-A1 (CA)
Title: Hard composite and method of making the same
Inventor: GREENFIELD MARK S
IPC: E21C35/18
Filed: 1996-07-03
Abstract: A method of heat treating a green compact having an exposed surface. The method includes the steps of: providing a green compact comprised of a hard carbide and binder; placing a powder of grain refiner on at least one portion of the exposed surface of the green compact; and heat treating the green compact and grain refiner powder so as to diffuse the grain refiner toward the center of the green compact thereby forming a peripheral zone (80) inwardly from the exposed surface in which the grain refiner was placed, and forming an interior zone (84). The peripheral zone having a grain size that is smaller than the grain size of the bulk zone.
Patent CA-2229924-A1 (CA)
Inventor: GARBUTT CHARLES F
IPC: C02F5/02
Filed: 1998-02-19
Abstract: A multi-stage process is provided for treating a water to reduce its hardness. The feed water is initially heated to a thermal reaction temperature in a heating stage. The heated water is then maintained at or near the thermal reaction temperature for a sufficient residence time to thermally react the water, producing a first portion of a scale from the scale-forming ions in the water while discharging dissolved gases from the water. After the thermal reaction stage, one or more chemical additives in the form of a hydroxide ion donor and optionally a bicarbonate ion donor are added to the heated water in a chemical reaction stage. The chemical additive is chemically reacted with the water in the chemical reaction stage, producing a second portion of the scale from the scale-forming ions in the water. A treated water having a reduced hardness is recovered from a sludge settling stage and the scale produced by the thermal and chemical reaction stages is discharged from the water and accumulated in a sludge accumulation stage for withdrawal from the process.
Patent CA-2231476-A1 (CA)
Inventor: RAJEWSKI ROBERT KARL
IPC: F23D14/06
Filed: 1998-03-06
Abstract: A nozzle tor a pilot light tor a flare stack, the nozzle being formed of a housing defined by an encircling cylindrical wall, with radially extending openings formed circumferentially around the encircling wall, and is made of material resistant against breakdown in a sour gas environment at temperatures at least less than 1200°C, preferably 98% by weight alumina ceramic. A cage holds the nozzle, which includes a base plate having a central aperture and first and second sides, a tube extending into the aperture from the first side of the base plate and fixed to the base plate, and plural retainers extending from the base plate and enclosing the nozzle. To form a pilot for a flare stack, a gas conduit is connected into an interior cavity of the nozzle. The cage is attached to a flame stack. The retainer members pass through the nozzle to protect the retainer members from the corrosive environment in which the pilot operates.
Patent CA-2233209-A1 (CA)
Title: Distillation of ethylene oxide
Inventor: AUER HEINZ
IPC: C07D303/02
Filed: 1996-11-05
Abstract: A process is proposed for distilling ethylene oxide from a mixture containing ethylene oxide in a column at an absolute pressure of 2-10 bar and a temperature of 20-180 ~C; pure ethylene oxide is removed at the top or through a side discharge in the column and distillation takes place in a column divided up internally into a number of successive zones with structured sheet metal packs or piles of fillers, one or more quenching systems located outside the column being allocated to said zones.
Patent CA-2235754-A1 (CA)
Title: Piezoelectric transducers
Inventor: WARNAKA MARK E
IPC: H04R17/00
Filed: 1996-11-04
Abstract: The invention consists of a piezoelectric material (11), a substrate or spacer (12) and an electrical connector means (13) for a wire harness or other electrical connection. The substrate (12) is used to enhance the motion of the piezoelectric element (11) by spacing the piezoelectric element (11) from the diaphragm. The substrate (12) is larger in area than the piezoelectric element (11). The transducer system (10) acts to impart motion to the diaphragm. The transducer (10) comprises a piezoelectric element (11) subject to displacement by applied electric potential (13) that has a top side, an underside and an outer perimeter. The substrate (12) is joined to the underside of the piezoelectric element (11). A means (15) applies electric potential to the piezoelectric element (11).
Patent CA-2236277-A1 (CA)
Title: Aqueous cosmetic composition containing stably solubilized uric acid and water-soluble polymer and method for stably solubilizing uric acid in aqueous cosmetic composition
Inventor: TOMURA KAZUYO
IPC: A61K8/00
Filed: 1998-04-28
Abstract: The present invention is directed to an aqueous cosmetic  composition  containing  uric  acid  in  a  stably solubilized state together with an acrylic polymer.   The composition is adjusted to pH equal to or higher than pK1 of uric acid,  in particular,  pH 7 or higher by an alkali to solubilize uric acid.  A method for stably solubilizing uric acid in an aqueous cosmetic composition is also disclosed.
Patent CA-2237005-A1 (CA)
Title: Quinazoline derivatives
Inventor: LOHMANN JEAN-JACQUES MARCEL
IPC: C07D239/94
Filed: 1996-12-13
Abstract: The invention relates to quinazoline derivatives of formula (I) [wherein: Y1 represents -O-, -S-, -CH2-, -SO-, -SO2-, -NR5CO-, -CONR6-, -SO2NR7-, -NR8SO2- or -NR9- (wherein R5, R6, R7, R8 and R9 each independently represents hydrogen, alkyl or alkoxyalkyl); R1 represents hydrogen, hydroxy, halogeno, nitro, trifluoromethyl, cyano, alkyl, alkoxy, alkylthio, amino or alkylamino. R2 represents hydrogen, hydroxy, halogeno, alkyl, alkoxy, trifluoromethyl, cyano, amino or nitro; m is an integer from 1 to 5; R3 represents hydroxy, halogeno, alkyl, alkoxy alkanoyloxy, trifluoromethyl, cyano, amino or nitro; R4 represents a group which is or which contains an optionally substituted pyridone, phenyl or aromatic heterocyclic group] and salts thereof; processes for their preparation and pharmaceutical compositions containing a compound of formula (I) or a pharmaceutically acceptable salt thereof as active ingredient. The compounds of formula (I) and the pharmaceutically acceptable salts thereof inhibit the effects of VEGF, a property of value in the treatment of a number of disease states including cancer and rheumatoid arthritis.
Patent CA-2242079-A1 (CA)
Title: Theater
Inventor: ERRATO ROBERT M
IPC: E04H3/22
Filed: 1998-06-30
Abstract: The present invention relates to the design of a modern theater for providing live entertainment performances.  The theater comprises an auditorium which is defined in part by a modular central core which encloses a defined space.  The theater further comprises a modular stage and a two-tier balcony module.   The central core module, the stage and the balcony module are each supported by independent foundations and load bearing columns.  The balcony module includes an upper level with open seating and a lower level with enclosed suites.  The suites are designed so as not to adversely affect the acoustics of the theater. The theater also has two side wing modules for increasing the seating capacity of the theater and other modular structures abutting the central core module.  The theater also includes partitions for closing part of the side wing modules and a novel jack system for supporting the acoustic panels forming the partitions when the panels are in their extended position.
Patent CA-2242541-A1 (CA)
Title: Blowing agent powder and process for producing the same
Inventor: YASUMARU CHIAKI
IPC: B01J2/30
Filed: 1998-07-09
Abstract: A powder comprising a blowing agent powder core which is coated with at least one oil-like substance on its surface, and a process for producing a powder comprising a blowing agent powder core which is coated with at least one oil-like substance on its surface, comprising the following steps (a) and (b): (a) adding at least one oil-like substance in the form of a mist to a blowing agent powder; and (b) mixing the oil-like substance with the blowing agent powder under such mixing conditions that the blowing agent powder is less susceptible to pulverization.
Patent CA-2244505-A1 (CA)
Title: Heat sink for semiconductors and manufacturing process thereof
Inventor: NISHIBAYASHI YOSHIKI
IPC: B22F7/00
Filed: 1998-07-29
Abstract: A highly heat conductive heat sink comprising diamond particles yet eliminating heat distortion problems caused by the difference in thermal expansion with a semiconductor, and a manufacturing method thereof. Melting of an alloy (C), which comprises a metal (A) of at least one metal selected from the group consisting of Cu, Ag, Au, Al, Mg, and Zn; and a metal (B) of at least one metal selected from the group consisting of the groups 4a and 5a of the Periodic Table and chromium, around diamond particles forms on the surface thereof a metal carbide (B'), which enables the strong bonding between the diamond particles and the metal (A) and thus produces a highly heat conductive heat sink having a much higher thermal conductivity than the metal (A). This structure is attainable by either an infiltration method or sintering method. A special feature, or effectiveness, of the invention lies in that the metal carbide (B') is formed on the surface of the diamond particles at the same time as or after the formation of a metal matrix. It is essential that not less than a quarter of the surface of the diamond particles be covered with the metal carbide (B') and the diamond particles be separated with one another by metal.
Patent CA-2249730-A1 (CA)
Inventor: GENAU CLAUS
IPC: B24D3/00
Filed: 1998-10-06
Abstract: An abrasive wheel having an annular support disk and an abrasive ring fixed thereto comprises reinforcement layers on the front sides of the abrasive ring, a layer of an abrasive agent being disposed between the reinforcement layers. The reinforcement layers and the outer portion of the support disk overlap each other radially, at least one reinforcement layer, in this area, being connected with an annular flange of radial extension by means of an adhesive layer.
Patent CA-2250861-A1 (CA)
Title: Cyclic adhesion inhibitors
Inventor: JONCZYK ALFRED
IPC: C07K7/64
Filed: 1997-04-02
Abstract: The invention concerns cyclopeptides of formula (I): Cyclo-(Arg-Gly-Asp-X-Y) in which X is Cha, Nal, Phe, 2-R1-Phe, 3-R1-Phe, 4-R1-Phe, homo-Phe, Phg, Thi, Trp, Tyr or derivatives of Tyr, whereby the OH  group can be etherified by alkyl groups containing 1-18 C-atoms and the amino-acid groups given can also be derivatives, R1 is NH2, NO2, I, Br, Cl, F, alkyl with 1-18 C-atoms, Ar, Ar-O or 3H, Y is Gly in which the a N-atom may be substituted by R2 and/or the a C-atom may be substituted by R3 and/or R4, with the provision that Gly has at least one of the substituents specified, Ar is phenyl which may be substituted by one or two of the groups NH2, NO2, I, Br, Cl, F, alkyl with 1-6 C-atoms or 3H, R2, R3 or R4, independently of each other, are alkyl with 1-18 C-atoms or R2 and R3 or R3 and R4 together in each case are a branched or unbranched alkylene chain with 3 to 18 C-atoms so that either the a N-atom and the a C-atom together with the alkylene chain, or the a C-atom alone, forms a ring with the alkylene chain, whereby, when optically active amino-acid or amino-acid-derivative groups are involved, both the D- and the L-form are included, plus derivatives, in particular the .beta.-ester of aspartic acid or N-guanidine acyl derivatives of arginine or prodrug as well as their physiologically acceptable salts. These compounds act as integrin inhibitors and may be used particularly for the prophylaxis and treatment of circulatory and angiogenic conditions and microbial infections as well as in tumor therapy.
Patent CA-2254456-A1 (CA)
Title: A modularly-partitioned feedforward multi-linear rf power amplifier
Inventor: ZIESSE NORMAN GERARD
IPC: H04W52/52
Filed: 1998-11-25
Abstract: A modularly-partitioned feedforward multicarrier linear RF power amplifier is described. The circuitry and components of the power amplifier are segregated into physically-separate modules in accordance with several criteria. In one embodiment, the power amplifier is segregated into a RF power module, a linearizer module and a DC power supply module. The RF power module includes power- and frequency- dependent components and generally varies with the carrier frequency and output power requirements for a specific application. The linearizer module includes circuitry and components that are substantially power- and frequency-independent. As such, the linearizer module is substantially invariant and a single design may be used for virtually any application. The DC power supply module includes circuit and components that are substantially frequency independent but somewhat power dependent. The DC power supply module may vary from amplifier to amplifier where there is a significant change in output power requirements.
Patent CA-2255555-A1 (CA)
Title: 2-(o-[pyrimidin-4-yl]methylene oxy)phenyl acetic acid derivatives and their use in combatting noxious fungi and animal pests
Inventor: R HL FRANZ
IPC: A01N43/54
Filed: 1997-05-09
Abstract: 2-(O-¢pyrimidin-4-yl! methylene oxy)phenyl acetic acid derivatives of general formula (I) and their salts and N oxides, in which R1 is halogen, alkyl or alkyl halide; R2 is hydrogen, amino, hydroxy, mercapto, halogen, possibly phenyl-substituted alkyl, alkyl halide, alkoxy alkyl, alkoxy, monoalkyl amino, dialkyl amino, alkylthio, alkyl sulphoxyl, alkylsulphonyl, cycloalkyl, trialkyl silyloxy or phenyl, phenoxy, phenoxy methyl, benzyloxy or heteroaryl possibly substituted in the aromatic ring, R2 being different from R1; R3 is hydrogen, cyano, halogen, C1-C4 alkyl, C1-C4 alkyl halide or C1-C4 alkoxy, and Q is C(=CHCH3)-COOCH3 or C(=CHOCH3)-COOCH3, and their use in combatting noxious fungi and animal pests.
Patent CA-2256499-A1 (CA)
Title: Absorbent article having a selectively elasticized waist flap
Inventor: SAUER BARBARA OAKLEY
IPC: A61F13/15
Filed: 1997-06-10
Abstract: An absorbent article includes an improved waist flap (60) which includes a central zone (62) and a pair of laterally opposed side zones (64, 66) which extend laterally outward from the central zone to the side edges of the absorbent article. The side zones of the waist flap are elasticized such that they are capable of being elongated in the lateral direction when the side edges of the absorbent article are extended to fasten the absorbent article about the waist of a wearer. The central zone of the waist flap may be substantially inelastic such that it conforms to the wearer's body and, in particular, to the small of the wearer's back.
Patent CA-2257911-A1 (CA)
Title: Process and device for managing intercellular transfers of radio communications in a cellular radio communication system
Inventor: MONOT JEAN-JACQUES
IPC: G01S3/30
Filed: 1997-06-06
Abstract: The method concerns the management of the communications intercell handover of mobile stations (MS) in a cellular radiocommunication system comprising a definite number of microcells inside the umbrella cells having each respectively a base station (BTS) for routing communications. It consists in locating by radiogoniometry at least two successive virtual positions of the communicating mobile stations (MS) relative to the umbrella cell base station to deduce therefrom a moving speed for each mobile in the time interval which separates the locating of their positions, in comparing respectively the obtained moving speeds with a determined speed value to entrust the management of communications of a mobile station (MS) to the base station (BTS) of the umbrella cell in which it is located when the speed is greater than the determined speed value or to the microcell base station (BTS) in the opposite case.