baber/WOPTO huggingface dataset:
Patent CA-2196250-A1 (CA)
Inventor: MILLINGTON JOHN A
IPC: F04C13/00
Filed: 1997-01-29
Abstract: A progressing cavity pump comprises an inlet housing defining a chamber, an extension tube defining a tube interior communicating with the chamber, a stator defining an internal passageway communicating with the tube interior, a rotor positioned in the internal passageway in abutment againstan inner surface of the internal passageway and a coupling at least partially enclosed by the extension tube.  The coupling is connected to the rotor for actuating the rotor for rolling movement along the inner surface of the internalpassageway of the stator.  In an especially preferred form, the extension tube is in the form of a surface of revolution and is separable into first and second sections along a dividing plane which passes through the center of the tube. Fasteners are used to removably fasten the first and second sections to each other, the housing and the stator casing to provide access for inspection of thecoupling, the rotor and the stator.
Patent CA-2198274-A1 (CA)
Title: A process for manufacturing a vehicle roof, vehicle roof and vehicle fitted with such a roof
Inventor: SIMON VINCENT
IPC: B21D47/00
Filed: 1997-02-21
Abstract: The roof (1) is made from curved transverse members (2) and straight lengthwise members (3), joined together to form a grid supporting structure for a covering panel of sheet material (5). The grid members are made from a strip material, cut out by laser and joined together by interlocking notches (6) and welded. The grid members and roof panel can be made from any sheet material such as iron, steel, aluminium , alloy or plastic.
Patent CA-2198663-A1 (CA)
Title: Silica-filled rubber composition containing two different carbon blacks and tire with tread made therefrom
Inventor: SMITH RICHARD ROBINSON
IPC: C08L21/00
Filed: 1997-02-27
Abstract: The present invention relates to a silica-filled rubber composition reinforced with a combination of silica and a mixture of two defined carbon blacks and to pneumatic tires having treads comprised of such rubber composition.
Patent CA-2199359-A1 (CA)
Inventor: SMITH MARTIN PHILLIP
IPC: G01N21/87
Filed: 1995-09-05
Abstract: Afin de vérifier si une couche en diamant synthétique a été déposée sur un diamant (4), on contrôle la surface de la partie naturelle de la pierre en mesurant la densité du flux énergétique d'un rayonnement, dont la longueur d'ondes se situe entre 230 nm et 320 nm environ, dans une sphère (2) contenant le diamant. On compare ensuite cette mesure à la surface totale du diamant.
Patent CA-2200042-A1 (CA)
Inventor: WEBB JEFFREY S
IPC: G06F13/14
Filed: 1997-03-14
Abstract: The  present  invention  provides  automated remote user access to information accumulated by an information service provider via a standard interface supplied by the remote user.  The information is stored in a computer readable medium directly linked only to systems controlled by the information service provider to  improve  security and supervision of  transactions requested by the remote user.   The invention allows integration of a conventional voice response system with a World Wide Web server without the attendant risks of being exposed to the entire Internet community.
Patent CA-2202254-A1 (CA)
Title: Venturi scrubber and method with optimized remote spray
Inventor: SCHWAB JAMES J
IPC: B01D47/12
Filed: 1995-10-02
Abstract: An air pollution control system incorporating a venturi scrubber (40) and a method of cleansing a particulate-laden, contaminated gas flow are disclosed.  Spray nozzles (35) are used to introduce optimized droplets of a scrubbing liquid into the venturi to maximize the collection efficiency for optically active particles. The spray nozzles introduce the optimized droplets substantially upstream of the throat (50) of the venturi such that the spray mixes with the effluent gas flow and cools the gas flow to substantially its saturation temperature prior to entering the venturi throat. This promotes collection of condensibles and inhibits the revolatilization of contaminants that are collected by the scrubbing droplets which might otherwise evaporate in the hot gas flow. The optimized droplets are highly effective in rapidly cooling the effluent gas flow.
Patent CA-2202385-A1 (CA)
Title: Capacitor with a double electrical layer
Inventor: MENUKHOV VLADIMIR VASILIEVICH
IPC: H01G11/30
Filed: 1995-08-14
Abstract: The present invention relates to electrical engineering and can find application for making devices accumulating electric energy. The invention has for its object to improve the electrical characteristics of double-layer capacitors. To this aim, use is made of a nickel-oxide electrode in pair with an electrode made of a fibrous carbonic material, as well as of an aqueous-alkaline or aqueous-carbonate electrolyte. To obtain a power capacity of the capacitor, the carbonic material one of the electrodes is made from is nickel- copper-plated.
Patent CA-2205011-A1 (CA)
Inventor: LINDENMAN THOMAS W
IPC: B62D53/08
Filed: 1996-10-03
Abstract: An adjustable fifth wheel hitch (10) includes a support frame (12) having base rails (14) that are secured to the frame of a vehicle and a pair of spaced guide rails (16) that bridge between the base rails (14). The fifth wheel hitch (10) also includes a head assembly (28) having a jaw assembly (30)for engaging a kingpin on a trailer. A head support (48) and a pair of uprights (34) mount the head assembly (28) for relative fore-and-aft sliding movement along the guide rails (16) between a towing position and a maneuvering position. A releasable lock (50) secures the head assembly (28) in either selected position.    The lock (50) includes a dual bar latch (52) and a leaf spring (70) for biasing the latch (52) into a locking position. The dual bars of the latch are offset or dimensioned so that each bar is selectively received in only one of two similarly offset or dimensioned, cooperating apertures (66) formed in one of the guide rails (16).
Patent CA-2205671-A1 (CA)
Title: Process for the preparation of esters of aromatic carboxylic acid
Inventor: PAPENFUHS THEODOR
IPC: C07C319/20
Filed: 1997-05-16
Abstract: Process for the preparation of esters of aromatic carboxylic acids The present invention relates to a process for the preparation of compounds of the formula (1) R1R2R3R4R5ArCOOR (1) in which R1, R2, R3, R4 and R5 are identical or different and are hydrogen, a halogen, an alkyl or alkoxy group having 1 to 6 carbon atoms or OR, NHR, NR2, SR or COOR, in which R is an alkyl radical having 1 to 4 carbon atoms, Ar is an aryl radical having 6 to 12 carbon atoms and the radical R shown in formula (1) has the above meaning, by reacting a compound of the formula (2) R1R2R3R4R5ArCOOH (2) in which R1, R2, R3, R4 and R5 are identical or different and are hydrogen, a halogen, an alkyl or alkoxy group having 1 to 6 carbon atoms, OH, NH2, NHR, SH or COOH and Ar has the same meaning as in formula (1), with a sulfate of the formula (RO)2SO2, in which R has the above meaning, in the presence of a water-insoluble tertiary amine and water at a temperature of 10 to 120°C in the presence or absence of a water-insoluble solvent and with the addition of a base, at a pH of 5 to 12.
Patent CA-2210210-A1 (CA)
Title: Coin operated fluid dispenser system
Inventor: DRUCE BARRY
IPC: G07F13/02
Filed: 1997-07-11
Abstract: A coin operated fluid dispenser system is provided. The three fluid receiving tank system is free standing and requires no electricity to operate. Fluid flow is encouraged by the head pressure of tanks.
Patent CA-2210756-A1 (CA)
Inventor: KALIYA MARK
IPC: C07C5/48
Filed: 1995-12-15
Abstract: L'invention concerne un procédé pour la déshydrogénation oxydante et le craquage de paraffines C2-C5 (hydrocarbures homogènes ou mélanges avec des gaz combustibles liquéfiés) en vue de former des oléfines C2-C5 en présence d'un gaz contenant de l'oxygène et de vapeurs d'eau, à l'aide d'un nouveau catalyseur oxydique calciné présentant la composition suivante: XaYbZcAdOx, où X est un élément des groupes II et/ou IVb (Mg, Ca, Ti, Zr, ...), Y est un lanthanide et/ou un élément des groupes IVa ou bien Va (Ce, La, Nd, Dy, Sn, Pr, Sb, Pb, ...), Z est un élément du groupe I (Li, La, K, ...), A est un élément du groupe VII (Cl, Br, J), et a est égal à 0,4-0,9, b est égal à 0,005-0,3, c est égal à 0,05-1,5, d est égal à 0,05-0,8 et x est un nombre déterminé par les exigences de valence des métaux et des halogènes. Ce catalyseur s'utilise sous forme de pellets sphériques comprimés ou de produits d'extrusion avec adjonction de liant ou bien est déposé sur un matériau de support constitué de l'un des composants oxydiques précités ou d'un support séparé. La vitesse spatiale liée au poids rapportée aux hydrocarbures utilisés se situe dans la plage de 0,1 à 20 h<-1> et la température est comprise entre 400 et 700  DEG C.
Patent CA-2211954-A1 (CA)
Inventor: RASMUSSON JIM AGNE JERHER
IPC: H04R3/00
Filed: 1996-02-20
Abstract: In an audio system, a loudspeaker responds to an input signal producing a sound pressure wave having a linear component, which is linear function of the input signal, and an undesired non-linear component, which is a non-linear function of the input signal. Accordingly, it is desirable to reduce the non-linear component of the output sound pressure wave. An adaptive precompensating audio system for reducing this non-linear component includes a loudspeaker for producing a sound pressure wave and a precompensating filter for precompensating an input signal representative of the desired sound pressure wave. In addition, a microphone may be used to convert the resulting sound pressure wave into a sound signal and a precompensating filter modifier may be used to modify the precompensating filter in response to the sound signal. Preferably, the precompensating filter transforms the input signal using an inverse of an estimated transfer function for the loudspeaker.
Patent CA-2217454-A1 (CA)
Title: Wheel chair transport vehicle
Inventor: HACKETT DESMOND IGNATIUS
IPC: B60P1/46
Filed: 1996-04-04
Abstract: A vehicle (1) for the transport of persons in wheel chairs, the vehicle (1) being of the panelvan type with a side loading door (7). The vehicle (1) is modified by removing the sub-frame adjacent the door opening (3), installing a lifting platform (9) within the confines of the vehicle for access through the door opening (3), and providing a door (7) hinged from the roof, the door having strengthening members (26) such that when in the closed position of the door (7) the strength and rigidity of the vehicle (1) is restored.
Patent CA-2221365-A1 (CA)
Title: Access control and fraud prevention device for telephone services
Inventor: COX NEIL B
IPC: H04M3/36
Filed: 1997-11-18
Abstract: This invention performs policing functions for specialized telephone services, and mitigates fraudulent usage of such services. It sees application ubiquitous telephone networks that carry voice, facsimile or voice-band-data traffic. Signal processing is used to determine the properties of traffic present on a channel at a given point in time, and actions are conditionally imposed based on said traffic properties. Embodiments of the invention can be applied to prevent fraudulent use of telephone services through suppression of the answer supervision response. Embodiments of the invention can also be applied for regulation to specialized telephone services which depend on the manner of customers' use of such services.
Patent CA-2221957-A1 (CA)
Title: Asset location system
Inventor: HERRING RUSSELL M
IPC: G01S5/00
Filed: 1997-09-19
Abstract: An asset location system includes a pager, a control processor, a GPS receiver and a cell phone.  During normal operation, the equipment on board the tracked asset is in a low power or sleep mode.   Upon receiving a location quaere from a call center, a signal ro control processor is powered up.  If location information is to be obtained from a particular asset, a GPS receiver obtains latitude and longitude information.  This latitude and longitude information is put in a transmittable form by a modem. A  cellular  telephone  module  then  transmits  this information to a remote monitoring or response center. If desired, data reporting on asset condition may also be sent the remote monitoring or response center along with the location information.
Patent CA-2224703-A1 (CA)
Inventor: HAMAGUCHI MASAHIKO
IPC: E02F9/18
Filed: 1996-07-10
Abstract: A device which facilitates mounting and dismounting a counterweight and is inexpensive. The device comprises hydraulic cylinders (41, 42) mounted on an upper swivel (23), a first cable (55) connecting tip ends of rods (45, 46) of the hydraulic cylinders (41, 42) to a boom (31), and a second cable (58) connecting the tip ends of the rods (45, 46) of the hydraulic cylinders (41, 42) to a counterweight (28), wherein the counterweight (28) can be hung up and down by expansion and contraction of the hydraulic cylinders (41, 42) and rising and falling of the boom (31).
Patent CA-2225612-A1 (CA)
Title: Method and arrangement for producing fuel gas
Inventor: HAHN DIETER
IPC: C10J3/26
Filed: 1996-06-26
Abstract: The invention concerns a process and apparatus for gasifying carbon-containing products, in particular waste and residues conditioned or processed in a suitable way. Gasification takes place in a mixed flow composed of a counter flow, direct flow and transverse flow. A portion of the gasifying agent is introduced through an inclined grate in the form of a step grate and thrust grating and ash is removed at the bottom end of the grate. Fuel gas is drawn off above the upper level of the grate on the side opposite the lateral feed of the gasifying agent. The gasification apparatus is enclosed in a double-layer insulating/cooling system in which air is used as the insulator and coolant. The gasification process is regulated by the temperature profile of the gasification apparatus, the position of the principal gasification zone is adjusted by ash discharge, the gasification temperature is regulated by the flow of gasifying agent and the output is regulated by the width of the gasification zone. The fuel gas produced is used preferably for generating electricity in a work machine. Exhaust gases are purified preferably with the aid of an active coke filter.
Patent CA-2226534-A1 (CA)
Title: Process for purifying crude 1,4-butanediol
Inventor: MURAI NOBUYUKI
IPC: C07C29/80
Filed: 1998-01-09
Abstract: 1,4-Butanediol is obtained by purifying crude 1,4-butanediol obtained by hydrolyzing diacetoxybutane via the following purification steps (1) to (3):      (1) hydrogenating the crude 1,4-butanediol in the presence of a hydrogenating catalyst;       (2) removing a fine powder of the hydrogenating catalyst from the hydrogenation mixture; and (3) distilling the mixture, from which the fine powder has been removed, in a distillation column and thereby obtaining the 1,4-butanediol having high purity from a side stream thereof.       The 1,4-butanediol thus obtained sustains high purity even in prolonged continuous operation of the process and is contaminated with little 2-(4'-hydroxybutoxy)tetrahydrofuran, and thus, it can be used as a starting material to produce polybutylene terephthalate with good colour.
Patent CA-2226687-A1 (CA)
Inventor: HEMPHILL ROBERT
IPC: G06F3/00
Filed: 1998-01-12
Abstract: This apparatus relates to devices that allow the user to interact in video/computer games using the movement and physical actions of the body. A belt or harness having a multiple of movement detection devices mounted on it is worn such that detectors are connected by a line to each foot and to handgrips. Extensions and flexions of each arm or leg pulls and releases the lines which intermittently open and close switches in that detection device providing electrical or other impulses to a computer or TV  game interface. Further control is offered through user-selectable switches, triggers, and direction control mechanism(s) which are either incorporated into the handgrips and activated manually or worn on the head or upper torso and activated automatically. A remotely attachable keypad which can be placed in a location convenient to the user. Such that vigorous interaction in a videogame or computer simulation experience may be undertaken without close proximity to a keyboard terminal enables further selectable inputs.
Patent CA-2227191-A1 (CA)
Title: Oil-sealed vane-type rotary vacuum pump with an oil pump
Inventor: ABELEN THOMAS
IPC: F04C29/02
Filed: 1996-07-12
Abstract: The invention concerns an oil-sealed vane-type rotary vacuum pump (1) with a rotor (3) and an oil pump (45, 46) whose suction chamber is fitted with feeds (64, 65) for gas and oil. In order to simplify the supply of a gas/oil mixture to the vacuum pump, the invention proposes that the gas and oil feeds (64, 65) are disposed in such a way that initially only oil and subsequently both oil and air are aspirated into the volume swept by the oil pump (45, 46) as it rotates.
Patent CA-2229378-A1 (CA)
Title: Combination scale for conveyor line
Inventor: VANDE BERG DAVID M
IPC: G01G11/04
Filed: 1998-02-11
Abstract: A scale system for the continuous weighing of a series of packages on a conveyor. The packages are run over a series of synchronized belts on tables, one of which records the weight on a section of the conveyor at intervals timed to assure that no single packages will be weighed more than once.
Patent CA-2230505-A1 (CA)
Inventor: JOHNSON JEFFREY C
IPC: F26B1/00
Filed: 1998-02-25
Abstract: A process for treating paint sludge in which previously cured paint sludge powder is used as a diluent and mixed with wet paint sludge. The paint powder/sludge mixture is agitated and heated to cure the paint sludge. Processing can occur either continuously or in batch mode, and can be accomplished using a mixer charged with heated gases, or a heated mixer.
Patent CA-2231929-A1 (CA)
Title: Abrading method
Inventor: FRIES ROBERT
IPC: C09K3/14
Filed: 1998-03-13
Abstract: A diamond abrasive compact is used for abrading a workpiece in a corrosive environment. The invention has particular application to abrading wood products which contain resins or organic binders. The diamond abrasive compact is characterised by a second phase which comprises chromium and nickel.
Patent CA-2232109-A1 (CA)
Inventor: MONTAUSIER ROBERT
IPC: F24F3/12
Filed: 1998-03-11
Abstract: Installation et procédé de préparation d'air médical par cycle de production, chaque cycle de production comportant au moins une étape de compression de l'air atmosphérique à une pression supérieure à 105 Pa au moyen d'au moins une source de compression d'air et au moins une étape de purification de l'air atmosphérique comprimé par au moins une étape d'adsorption, l'air purifié médical sous pression ainsi produit étant mis en réserve dans des moyens de stockage/homogénéisation, dans lequel: - on mesure la pression P de l'air médical à intérieur des moyens de stockage/homogénéisation, - on compare la pression P mesurée à une pression seuil Po et à une pression maximale Pm prédéterminées, et - on ajuste la pression P à une pression, telle que : Pm > P~Po.
Patent CA-2237163-A1 (CA)
Inventor: CRYSTAL RICHARD G
IPC: C09D11/00
Filed: 1996-11-12
Abstract: This invention is directed to improved aqueous pigment-based ink compositions for use in ink jets and methods of enhancing and/or controlling the optical density and print sharpness of both pigment-based and dye-based inks. The improved ink composition includes a class of organic quaternary ammonium compounds which improve the optical density and print sharpness of the inks. Other improvements include the use of a polyalkylene oxide to impedence match the ink with the drop formation rate to provide drop formation rates as high as 8,000 drops per second. These high drop rates permit higher writing speeds and enhanced printer resolution. Yet another improvement to ink jet ink composition is the addition of urea, urea derivatives and thiol compounds. These compounds prevent the ink jet from accumulating dried ink thus preventing clogging of the ink jet.
Patent CA-2239194-A1 (CA)
Inventor: SAGE GARY
IPC: F16N31/00
Filed: 1998-05-29
Abstract: An oil filter drainage box having a plurality of support members for holding spent oil filters. The drainage box comprises a container having four side walls, a lid and a base member. The spent oil filters are placed on the support member and the residual oil in the filters drains out due to gravitational forces.      The base member is inclined slightly to allow the oil to collect in a reservoir which is situated within the base member. There is a plurality of support posts extending upwardly perpendicular to the base member for engaging the spent oil filters. The lid provides a watertight seal which prevents the oil from leaving the box and damaging the environment. The reservoir is provided with a valve assembly. The valve assembly has a coupling which is attached to the reservoir, a valve, and a hose. The hose is attached to an oil vacuuming unit, which is preferably mobile and carries a complement of storage tanks and air compressor/vacuuming units. When the valve is opened, the oil is vacuumed out of the reservoir with little possibility of oil contaminating the ground.
Patent CA-2241036-A1 (CA)
Inventor: OTENIO DEJAIL
IPC: B60R1/06
Filed: 1998-06-19
Abstract: The present summary concerns a request for an invention patent for the fastening mechanism, belonging in the field of components for external automobile side view mirrors, which was developed in order to solve inconvenience that have been observed in the manufacturing process of similar conventional mechanisms, particularly in regards to the needs for different types of materials; said mirrors are essentially comprised: of a head (1), consisting of the mirror itself (2); of a position adjustment mechanism; and of a thermoplastic housing (3), in which the former are lodged and mounted on the body of the car; and of the fastening mechanism (5), consisting: of holding elements (10) and (20), in the present improvement, these are foreseen in adjacent faces of the housing (3) and base (4), made from the same material together with the latter in one single piece.
Patent CA-2241393-A1 (CA)
Inventor: KOOP GARY C
IPC: H01S3/095
Filed: 1998-06-23
Abstract: A high energy chemical laser capable of being operated in an aircraft to interdict and destroy theater ballistic missiles is provided. A key to the chemical laser of the invention is the use of individual chemical lasers whose individual photon energy outputs can be combined into a single high-energy laser beam.
Patent CA-2241845-A1 (CA)
Inventor: HRIB NICHOLAS J
IPC: C07D413/14
Filed: 1996-12-12
Abstract: 4,5-Dihydronaphth[1,2-c]isoxazole derivatives of general formula (I), where A, X and n are defined herein are disclosed. Such compounds are useful as serotonin 5-HT3 antagonists. These compounds are useful for the treatment of anxiety, psychiatric disorders, nausea, vomiting and drug dependency.
Patent CA-2244007-A1 (CA)
Title: Method and apparatus for storing and forwarding voice signals
Inventor: RABIPOUR RAFI
IPC: H04M3/533
Filed: 1998-07-27
Abstract: In recent years, the telecommunications industry has witnessed the proliferation of a variety of digital vocoders in order to meet bandwidth demands of different wireline and wireless communication systems. The rapid growth in the diversity of networks and the number of users of such networks is increasing the number of instances where two vocoders are placed in tandem to serve a single connection. Such arrangements of low bit-rate codecs can degrade the quality of the transmitted speech. To overcome this problem in the specific situation involving store-and-forward systems (e.g. voicemail), the invention provides a novel method and apparatus including a plurality of different vocoders that can be selectively invoked to process the voice signal so as to reduce signal degradation. Also, the apparatus has the capability to bypass the vocoder bank when exchanging data with a remote signal processor capable of accepting data frames in compressed format.