baber/WOPTO huggingface dataset:
Patent CA-2194783-A1 (CA)
Inventor: QUEENER STEPHEN WYATT
IPC: C12P17/16
Filed: 1995-07-14
Abstract: Phthalyl amidase is an enzyme previously unknown in the art that catalyzes removal of the phthalyl moiety from phthalyl-containing amides. The current invention provides DNA compounds encoding the phthalyl amidase enzyme and methods for expressing such compounds. The present invention also provides recombinant DNA vectors encoding phthalyl amidase and host cells transformed with these DNA vectors.
Patent CA-2195505-A1 (CA)
Title: Flexible toothbrush
Inventor: LAI RUI QING
IPC: A46B9/04
Filed: 1997-01-20
Abstract: A flexible toothbrush comprises a head portion, a neck portion and a handle portion. The head portion is integrally formed with the neck portion such that it is at an angle of approximately 0~ to 20~. The neck portion has a hollow chamber, where a leaf-spring is embedded within the hollow chamber and is bendable for providing flexibility on the neck portion for enhancing the brushing of an individual's teeth.
Patent CA-2196723-A1 (CA)
Title: Hair dye color selection system and method
Inventor: WIEGNER THOMAS F
IPC: B01F15/02
Filed: 1997-02-04
Abstract: A system for mixing and dispensing oxygen sensitive hair dye consists of concentrates in a sealed air-tight system using preferably 3-8 dye concentrates in collapsible bags having an oxygen barrier.  The dye concentrates, along with oxygen activating liquids, are sufficient to produce an infinite number of hair dye formulations, thereby avoiding buying and stocking many bottles of specific color dyes.  For formulating the dye mixtures, exact charges, i.e., volumes measured to within 1 ml, are raised from the bags and discharged.  Each bag is removably connected, in an air-tight seal, to a separate precision lift pump whose piston lift excursion may be selectively set to determine the volume of the dye charge.
Patent CA-2197333-A1 (CA)
Title: Differential gps ground station system
Inventor: VALLOT LAWRENCE C
IPC: G01S19/42
Filed: 1995-08-22
Abstract: A differential satellite positioning system is configured to include a plurality of satellite positioning system receivers in close proximity of one another for determining independent pseudo range values which are processed in accordance with a selected averaging scheme for determining highly reliable satellite differential corrections.
Patent CA-2198570-A1 (CA)
Title: New derivatives of boronic acid, the process for producing said derivatives and the pharmaceutical compound that contain them
Inventor: SIMONET SERGE
IPC: A61K31/69
Filed: 1997-02-26
Abstract: Boronic acid derivatives of formula (I), their isomers and their acid and base addition salts are new. R1, R2 = H or 1-6C alkyl; or CR1R2 = 3-8C cycloalkyl; R3 = H, 1-6C alkyl or phenyl or benzyl (both optionally substituted); R4 = heterocyclyl, amino, amidino, guanidino isothioureido iminomethylamino or mercapto (all optionally substituted); R5, R6 = H or 1-6C alkyl; or B(OR5)(OR6) = boronic ester of pinanediol; m = 0-6; n = 1-6; A1 = -CO-, -CS- or -SO2-; A = 5-10C bicycloalkyl-phenyl (optionally substituted) or -A2-N(R7)(R8), provided that m is not 0; A2 = -CO- or -CS-; R7, R8 = H, 1-6C alkyl (optionally substituted), 1-6C alkylsulphonyl, arylsulphonyl, aryl, heterocyclyl or 5-10C bicycloalkyl-phenyl (optionally substituted), indanyl or a group of formula (i) or (ii); Ra = 1-6C alkyl or phenyl (optionally substituted); Rb, Rc = H, halo, 1-6C alkyl, 1-6C alkoxy, hydroxy, optionally substituted amino or trihalomethyl.
Patent CA-2199045-A1 (CA)
Title: Process for the thermal cracking of a residual hydrocarbon oil
Inventor: OUDSHOORN CORNELIS ADRIANUS MA
IPC: C10G47/22
Filed: 1995-09-04
Abstract: Process for the thermal cracking of a residual hydrocarbon oil wherein a final 520 ° C+ conversion of at least 35% by weight is attained, which process comprises the steps of: (a) heating the residual hydrocarbon oil feed in a furnace to a temperature in the range of from 400 to 510 ° C for sufficient time to achieve 30 to 45% of the final 520 °C+ conversion; (b) feeding the partially converted, hot hydrocarbon oil produced in step (a) and a hot hydrogen-containing gas into a soaker, said hydrogen-containing gas having a sufficiently high temperature to maintain the temperature of the hydrocarbon oil in the soaker by means of direct heat exchange at a value in the range of from 420 to 650 °C, in which soaker the remainder up to 100% of the final 520 ° C+ conversion takes place; and (c) recovering a gaseous fraction containing the hydrogen-containing gas and a cracked residue from the soaker.
Patent CA-2206512-A1 (CA)
Title: Musical instrument support
Inventor: JOHNSON WALLACE W
IPC: G10G5/00
Filed: 1997-05-29
Abstract: A chair-borne musical instrument support that is both adjustable and portable.  The musical instrument support includes a seat portion having an adjustably attached support arm with an instrument rest attached to the top thereof.   The musician places the seat portion of the device on the seat of a chair, and then sits  on  the  seat  portion.    The  support  arm and instrument rest extend upward near the front edge of the chair and between the legs of the musician.  The weight of the musician sitting on the chair holds the device  in  place.     Alternatively,   the  musical instrument support may be held in place on a chair by adjustable straps.   The base of the tuba is then placed upon the instrument rest which is covered with a non-abrasive, non-skid surface.  The support arm and instrument rest may be adjusted vertically up or down to a comfortable height.  The instrument then rests in the same position as if it were being held on the musician's lap, but now it does not have to be borne by the  musician's  legs.    The  musical  instrument support is not permanently attached to the chair; therefore,  the  support  may be  easily removed and carried with the musician or stored for later use. Several  embodiments  of  the  present  invention  are contemplated  which  are  designed  to  be  used  by different size musicians and with different types of instruments.
Patent CA-2208976-A1 (CA)
Inventor: BONE DAVID
IPC: E02B17/00
Filed: 1996-11-05
Abstract: Apparatus for providing an offshore drilling operation in a sea, the apparatus comprising a drilling derrick support structure (2) having a base (4) to rest on the sea-floor (5) and a deck (7) to support a drilling derrick (1), the structure being in the form of a concrete block (2) having a hollow cavity to enable the block (2) to be floated to the site where drilling is to take place and being adapted to receive ballast into the cavity in such a way and in a sufficient quantity as to cause the block (2) to sink base-first and rest upon the sea-bed with the deck (7) clear of the surface of the sea, a drilling derrick (1) for mounting on the deck (7) of the block (2) and a tender assist barge (3) for transport to the site in down to 2m of water to provide services, supplies and equipement to the drilling derrick (1).___________________________________________________________________________ _______
Patent CA-2210831-A1 (CA)
Title: Image conversion panel and associated methods
Inventor: LIU HUI-CHUN
IPC: H01L31/0352
Filed: 1997-07-17
Abstract: A method for infrared (IR) imaging using a panel made of integrated GaAs quantum well infrared photodetector (QWIP) and near-infrared (NIR) or visible light emitting diode (LED). The panel is a large area diode with an optical window for top illumination or without the window for backside illumination. The integrated device acts as a photon energy up-converter which converts infrared light of wavelength longer than about 1.1 µm to near infrared or visible light which falls into the silicon detector spectral range. Using this device, an IR image is up- converted and the resulting NIR or visible image is then detected by an off- the-shelf silicon charge-coupled-device (CCD) camera. The image detected on the CCD camera represents the original infrared image. A specific device embodiment for converting 9 µm IR to 870 nm NIR is given. Using this up-conversion scheme a multicolor or multispectral version is easily realized, which provides the capability of simultaneously imaging in several infrared wavelength regions. The imaging panel can also be used with other forms of photodetectors.
Patent CA-2211064-A1 (CA)
Title: Method and apparatus for playing a casino game
Inventor: FEOLA JOHN
IPC: A63F3/00
Filed: 1997-07-22
Abstract: A casino game based on a selected card game in which a player wagers on one or more of a group of hands, and where the chances of winning are not enhanced by the skills of the player and no discretion in the selection of cards is vested in either the player or dealer.  A card game, such as blackjack, baccarat, or stud poker, is selected.  A number of hands are dealt as lines on a playing surface and players wager as to which hand will win.  The playing surface has a dealer position including a line for each hand dealt, and player positions in a semicircle around the dealer position, each including a location at which wagers are placed.          Winning wagers are paid a multiple of the wager.      Optionally, the multiple is based on the odds of obtaining the particular winning combination.
Patent CA-2213787-A1 (CA)
Inventor: BAKER LARRY
IPC: B23P15/26
Filed: 1997-08-22
Abstract: A method for fabricating a box header for use in an air cooled exchanger is provided, wherein the weld joints connecting the plates or sheets to be welded together to form the box header are prepared by securing backing bars along the two longitudinal edges of the two wrapper sheets, and securing the wrapper sheets in the desired position relative to the tube sheet and plug sheet, with the backing bars protruding away from the longitudinal edges of the wrapper sheets and abutting the adjacent tube or plug sheet to hold the pieces apart at a desired spacing.  The backing bars also close off or isolate the welding process from the interior of the header and allow the root pass and any subsequent passes to be made using an automated welding process that, when performing the root pass, fuses together the adjacent sheets or plates and the backing bar.  Full penetration welds are assured by using a high welding current facilitated by the isolation provided by the backing bar, and higher quality, more consistent root pass welding is attained by virtue of employing an automated welding process.
Patent CA-2214210-A1 (CA)
Inventor: RAUNER GUENTER
IPC: B41M3/14
Filed: 1997-08-28
Abstract: The core of the present invention consists of applying a coating that contains film-forming organic pigments (plastic pigments) and binders to at least one side of paper or a paper substrate and then producing a film from this after printing by applying at least heat, but preferably both heat and pressure. The printing ink is embedded between the fused or sintered plastic pigments and thus can no longer be smudged. The surface of the paper  becomes  abrasion  resistant  and  has  film-like properties due to the plastic film and has at least a water-repellent  seal,  if not a waterproof  seal.  The applied print image appears to the observer to have greater brightness. It has also been found that print images produced according to this invention have much greater  lightfastness  than traditional  inkjet printings.
Patent CA-2214226-A1 (CA)
Title: Lamp protective, electronic ballast
Inventor: SHACKLE PETER W
IPC: H05B41/24
Filed: 1996-03-29
Abstract: A lamp protective, electronic ballast includes a lamp voltage detector having a capacitor (112, 145, 165) and resistor (110, 142, 163) series connected across a discharge lamp (73). The junction of the resistor and capacitor is coupled to a voltage sensitive switch (114, 147, Q8/Q12) for detecting DC  offset on the lamp and excessive AC voltage on the lamp. The switch is more sensitive to DC offset than to excessive AC voltage and is disabled while the lamp is started.
Patent CA-2216837-A1 (CA)
Title: Method and apparatus for providing passenger access to a vehicle navigation system
Inventor: OSHIZAWA HIDEKAZU
IPC: G08G1/0968
Filed: 1997-09-26
Abstract: A method and apparatus provide access to an interactive product to a passenger of a vehicle while limiting access to the interactive product to the driver of the vehicle.  At least one control device is provided for allowing user interaction with the interactive product.  Interaction with the interactive product via the at least one control device is inhibited while the vehicle is moving.  An access device is provided which must be employed in conjunction with the at least one control device to enable user interaction with the interactive product while the vehicle is moving.
Patent CA-2217847-A1 (CA)
Inventor: ONO KEITA
IPC: C09D5/02
Filed: 1997-10-07
Abstract: This invention is directed to an aqueous colored coating composition which is applied with a spray device having a fine-orifice nozzle(s), the composition comprising a neutralized acrylic copolymer containing an alkoxysilyl group and a carboxyl group and a coloring pigment, and a method of pattern coating, comprising the steps of coating a substrate with said aqueous colored coating composition using a spray device having a fine-orifice nozzle(s) to give a pattern coating layer, and coating the pattern coating layer with a clear coating composition.
Patent CA-2218883-A1 (CA)
Title: Fluid delivery apparatus and method
Inventor: HIMES RICKY A
IPC: H05K3/26
Filed: 1996-07-08
Abstract: A fluid delivery apparatus and method is provided wherein either liquid or gaseous fluid is provided from fluid dispenser manifolds (35), via nozzle plates (40) associated therewith, on each side of a path of travel (22) of articles (11) being treated by the fluid, and wherein nozzle openings (41, 42, 43) in nozzle plates (40) cooperate with transverse groove(s) (67) to provide a screen flow of fluid extending transversely of the path of travel (22) of articles (11), and directed toward the articles (11). In the case of the fluid being a liquid, the nozzle openings (41, 42, 43) provide cylindrical filament-like columns of liquid which are rendered by the associated grooves (67) into a generally flat, transversely disposed screen spray of liquid. In the case of the fluid being a gas, the nozzle openings (41, 42, 43) and transverse grooves (67) cooperate to deliver the gas in transversely spaced-apart, transverse, planar zones of gas directed toward the path of article travel (22). In the case of liquid flow, the openings (41, 42, 43) are generally cylindrical, and in the case of gas flow, the openings (41, 42, 43) are generally spaced-apart slotted holes. In the cases of both liquid and gas fluids, one of the grooves (67) and/or nozzles (41, 42, 43) are directed upstream relative to the path of article flow (22). Various adjustments are provided for adjusting the positions of the nozzle plates (40) relative to the path of flow.
Patent CA-2218904-A1 (CA)
Inventor: SEVOZ PHILIPPE
IPC: D06M13/432
Filed: 1997-03-25
Abstract: A fibrous substrate for making a coated abrasive article, containing urea or a mixture of urea and at least one hygroscopic material, particularly a mixture of urea and an inorganic salt, and especially of urea and sodium nitrate, is disclosed. Coated abrasive articles consisting of said substrate and abrasive grains adhered to one side thereof by means of at least one adhesive layer are also disclosed. Furthermore, the use of urea, or of a mixture of urea and another material as defined above, for preventing curling in a fibrous substrate during the production of a coated article, particularly a coated abrasive article, from said substrate, is disclosed.
Patent CA-2219206-A1 (CA)
Inventor: TELFER GEORGE
IPC: E21B43/10
Filed: 1996-05-30
Abstract: An activating means for activating a down-hole tool incorporates a magnet, which may include an attracting magnet (12) and a repelling magnet (13), and which may move under hydraulic pressure from an active position at which it causes a trigger, valve (8) or spring to be energised to a non active position at which the tool is not activated, the activating means thereby utilising hydraulic pressure without requiring hydraulic ports in the liner or mandrel.
Patent CA-2220507-A1 (CA)
Inventor: HARRIS JOHNNY MICHAEL
IPC: H04J13/00
Filed: 1996-05-08
Abstract: Système électronique de transmission de données possédant un rapport de puissance bas de valeur de crête/valeur moyenne étant donné qu'il comporte un circuit émetteur recevant un signal d'entrée et générant en réponse un signal de sortie déformé. Ce signal de sortie déformé est généré de telle façon que le signal de sortie possède une intensité importante quand le signal d'entrée présente une forte probabilité d'apparition, et possède une intensité basse quand le signal de sortie présente une faible probabilité d'apparition. Ce signal de sortie déformé circule dans un canal de télécommunications en direction d'un circuit récepteur qui génère à nouveau le signal d'entrée par amplification du signal de sortie déformé avec un gain qui est l'inverse du gain par lequel le signal déformé est généré.
Patent CA-2220984-A1 (CA)
Title: Exercise appliance for abdominal muscles and method of using same
Inventor: WATNIK HARRY R
IPC: A63B23/02
Filed: 1996-05-15
Abstract: An exercise appliance (10) for conditioning the abdominal muscles of an individual (20) includes a structure presenting a resiliently yieldable contact surface which provides a restoring force against a force applied thereto, sized and shaped to be at least partially fittable in the space formed between a support surface (11) and a static lordotic curve of a lumbar spine (12) of an individual (20) positioned with a remaining portion of the back of the individual (20) in contact with the support surface (11). By so positioning the resiliently yieldable portion of the appliance (10), attempts by the individual (20) to straighten the lumbar curvature by contraction of the abdominal muscles forces the lumbar spine (12) to flatten against the counter-force provided by the appliance (10), conditioning the muscles responsible for the action, including the rectus abdominous (14).
Patent CA-2223114-A1 (CA)
Title: Functional polymers with carbon-linked functional groups
Inventor: STRANIX BRENT R
IPC: C08F8/00
Filed: 1997-11-28
Abstract: The addition of carbon centered free-radicals to the pendant, site isolated styryl moieties of divinylbenzene rich copolymers is described. Such copolymers obtained commercially or through suspension polymerization of technical grade divinylbenzene are highly crosslinked and porous materials of high surface area with a high degree of accessible unreacted vinyl groups. These unsaturated compounds are subject to free-radical reactions under various conditions with classes of small organic molecules to yield spacer bearing polymeric reagents. Thus, carboxylic acid, mono and dicarboxylic acid ester, orthoformate, alcohol, amide, lactam, amidine, substituted urea, imides, amines, crown ether and polyethyl ether bearing solid-phase reagents are obtained. Analysis through FTIR, solid-state NMR elemental analysis and other chemical techniques are used to describe the possibilities of the adducts obtained.
Patent CA-2224231-A1 (CA)
Inventor: LUCEY JOSEPH GERALD
IPC: B62B3/00
Filed: 1996-06-06
Abstract: Cette invention concerne un chariot d'enfant à ridelles comportant une surface disposée horizontalement (20) qui permet de transporter un enfant sur le chariot, ainsi que des parois périphériques avant (24), arrière (26) et latérales (22). Ces parois définissent des ouvertures au niveau de leurs bords supérieurs qui permettent d'accéder à des poches (32) formées dans les parois respectives. Des ridelles (34, 44), qui forment des extensions dirigées vers le haut des parois avant, arrière et latérales, sont pourvues de pieds (40, 50) reçus de façon amovible à l'intérieur desdites poches. Ces extensions comportent de préférence une pluralité de sections de rails (36, 46) horizontales espacées. Des sections, disposées verticalement et espacées, comportent des parties supérieures formant des interconnexions avec les rails ainsi que des parties inférieures définissant les pieds pouvant être reçus dans les poches. Des pieds supplémentaires aux extrémités recourbées (54) peuvent être reçus à l'intérieur de poches supplémentaires (56), ce qui permet de maintenir les ridelles en place sur le chariot.
Patent CA-2225828-A1 (CA)
Inventor: ANDREE ROLAND
IPC: C07D401/14
Filed: 1996-06-17
Abstract: The invention concerns novel substituted carbonylaminophenyluracils of general formula (I) in which R1, R2, R3, R4, R5, R6 and R7 have the meanings given in the description. The invention further concerns a method of preparing these compounds and their use as herbicides.
Patent CA-2226015-A1 (CA)
Title: Method of fabricating a fast programming flash e2prom cell
Inventor: SALAMA CLEMENT ANDRE T
IPC: H01L29/10
Filed: 1996-07-03
Abstract: In a flash E2PROM cell having source and drain regions disposed in a substrate, a channel region intermediate to the source and drain regions, a tunnel dielectric layer overlying the channel region, a floating gate overlying the tunnel dielectric layer, an inter-poly dielectric layer overlying the floating gate and a control gate overlying the inter-poly dielectric layer, the improvement comprising a highly doped p+ pocket implant covering a portion of the cell width and adjacent to least one of the source and drain regions. The flash E2PROM cell is comprised of two sections butted together. The portion (width-wise) covered by the highly doped p+ pocket implant is referred to as the program section and the remaining portion (width-wise) not covered by the highly doped p+ pocket implant resembles a conventional E2PROM cell and is referred to as the sense section. The highly doped p+ pocket implanted and the n+ drain and/or source regions create a junction having narrow depletion width such that in the event the junction is reverse biased, an electric field is created for generating hot electrons for storage on the floating gate, thereby programming the flash E2PROM cell when a high positive potential is applied to the control gate. The cell according to the present invention provides short programming time and low operating voltages as compared to prior art devices.
Patent CA-2231091-A1 (CA)
Title: Process for preparing anhydride polymers
Inventor: WEINSTEIN BARRY
IPC: C08F22/04
Filed: 1998-03-04
Abstract: A process for preparing anhydride polymers in aromatic hydrocarbon solvents using a dialkyl peroxide/amine compound initiator system is disclosed. The amine compound allows more efficient use of free-radical initiators while achieving high monomer conversion polymerizations compared to conventional initiator systems, particularly in the preparation of maleic anhydride polymers.