baber/WOPTO huggingface dataset:
Patent CA-2119639-A1 (CA)
Inventor: DE SOETE GERARD
IPC: B01D53/34
Filed: 1992-09-18
Abstract: 2119639 9306915 Procédé pour épurer un gaz contenant du dioxyde de soufre et de l'oxyde nitrique, dans lequel on met en oeuvre une quantité d'oxygène dans le gaz au moins égale à la quantité stoechiométrique nécessaire pour oxyder l'oxyde nitrique en peroxyde d'azote et on traite le gaz avec du bicarbonate de métal alcalin. Le procédé s'applique à l'épuration des fumées générées par la combustion de combustibles soufrés d'origine fossile, dans les centrales thermiques de production d'électricité.
Patent CA-2120559-A1 (CA)
Title: Traffic management in packet communications networks
Inventor: GUN LEVENT
IPC: H04L12/56
Filed: 1994-04-05
Abstract: In a packet communications network, the addition or deletion of a connection to the network by a user is governed by a link traffic metric which represents the effective capacity of each link in the network which participates in the packet connection route. A new connection (or deletion) is represented by a compatible metric which allows updates in the link metric by simple vector addition or subtraction. Separate link metrics for a plurality of classes of service permit a much higher efficiency in the exploitation of the link bandwidth than is possible with a single link metric. A packet network using multiple link metricsand efficient metric updating techniques provides increased packet throughput while, at the same time, preserving all class of service guarantees.
Patent CA-2121492-A1 (CA)
Title: Chromatographic separation of sugars using porous gel resins
Inventor: DORTA ANTONIO
IPC: C13B20/14
Filed: 1992-09-28
Abstract: The present invention is a process for the chromatographic separation of a liquid mixture comprising a first sugar component and at least one secondary component chosen from second sugars, organic acids and salts thereof, alcohols, amino acids, and inorganic salts. In the process, the liquid mixture is contacted with a stratum of a porous gel cation-exchange resin and thereafter eluted such that the first sugar component passes through the stratum at a different rate relative to the secondary components of the liquid mixture. The separation results in a first recoverable product stream rich in the first sugar component and at least one secondary product stream rich in the secondary components. The porous gel cation-exchange resin is prepared by polymerization of at least one monovinylidene monomer with a cross-linking monomer in the presence of an inert diluent. The use of such porous gel resins in the process increases kinetics, improves yields of desired sugar components, and results in a more efficient separation process.  The invention is particularly applicable to separation of glucose from fructose in the preparation of high fructose corn syrup.
Patent CA-2121993-A1 (CA)
Title: Tooth Assembly for Excavating Apparatus
Inventor: PIPPINS SHERLOCK K
IPC: E02F9/28
Filed: 1994-04-22
Abstract: A tooth assembly for mounting on the tooth horns of excavating or levelling apparatus buckets, shovels or alternative digging mechanisms.  In a preferred embodiment the tooth assembly includes a wedge-shaped adapter for seating on a tooth horn, an insert removably seated in an insert cavity provided in each side of the adapter and a tooth point frontally engaging and bolted to the adapter by means of bolts threaded in the inserts, for engaging the material to be excavated.  In another preferred embodiment top and bottom wear caps transversely slidably engage and bolt to the adapter adjacent to the tooth point for extending the life of the tooth assembly in the excavating or levelling operation.
Patent CA-2123434-A1 (CA)
Inventor: BENARROUCH JACQUES
IPC: B65D1/06
Filed: 1992-11-16
Abstract: 2123434 9310013 PCTABS00162 Le tube (2) conteneur de pâte rechargeable comporte du côté opposé au goulot (5), distributeur de produit, un orifice (1) de grande dimension fermé par un bouchon vissé (4) permettant de remplir à nouveau le tube (2), quand il est vide, avec n'importe quel autre tube conteneur de pâte du commerce. L'utilisateur peut disposer ainsi de tubes distributeurs de pâte de dimension appropriée à l'usage qu'il veut en faire.
Patent CA-2123445-A1 (CA)
Title: Storage system
Inventor: CROWE BARRY A
IPC: G11B23/023
Filed: 1994-05-12
Abstract: The storage system is for use with storage cases particularly of the type used to enclose compact disks, video tapes, cassette tapes and the like, however it may also be used to store any other type of storage case that is compatible with this type of storage. The storage system enables the user to store and maintain a large collection of cases, to add a new addition to the collection at any location within the collection without shuffling the collection, and to remove unneeded portions of the collection without leavins gaps in the storage system.
Patent CA-2123633-A1 (CA)
Inventor: AIDUN CYRUS K
IPC: B05C3/18
Filed: 1994-05-16
Abstract: A coating applicator for application of coating material to the surface of a web or a flexible substrate.      The coating device contains a walled application chamber where a flowing stream of the coating liquid first comes into contact with the substrate. The coating liquid enters a channel of the application chamber at the upstream side and wets the substrate as it flows in the same direction as the substrate. A doctor element is positioned at the downstream side of the channel where the excess coating in the channel follows the contour of the boundary formed by the doctor element and leaves the channel. One of the applicator walls is designed to be a floating or moving wall or belt. The floating applicator wall and geometry of the streamlined boundaries of the coating device eliminates the formation of recirculating eddies or vortices. The elimination of vortices eliminates flow instability due to centrifugal forces and removes harmful pressure fluctuations which could result in coat-weight nonuniformities.
Patent CA-2124863-A1 (CA)
Inventor: MARPLE BASIL
IPC: B28B21/08
Filed: 1994-05-18
Abstract: A slip casting process and apparatus for producing parts with graded properties across the thickness of the body of the parts. A number of slips is combined at a varying predetermined ratio and passed continuously through a casting mold between its inlet and outlet.   The process can be carried out under elevated pressure.   The casting mold can be positioned vertically or horizontally.
Patent CA-2125052-A1 (CA)
Inventor: MOJARADI MOHAMAD M
IPC: H01L29/78
Filed: 1994-06-03
Abstract: A semiconductor circuit integrated with CMOS circuits for receiving a TTL input voltage and generating a large negative and positive voltage swing with respect to p-type or n-type substrate is disclosed. This invention is based on elimination of the electro-static discharge (ESD) protection circuit which is a requirement for any integrated circuit. Eliminating the ESD protection circuit also eliminates the clamping feature of the ESD protection circuit and therefore the circuit can be driven to negative voltages for PMOS circuits and to positive voltages for NMOS circuits. This provides the possibility of connecting the drain of a a P-channel type metal oxide silicon field effect (PMOS) transistor, which is fabricated on a p-type substrate within an n-well, to a voltage below the the substrate voltage. Also, in a n-channel type metal oxide silicon field effect (NMOS) transistor which is fabricated on a n-type substrate within a P-well, the drain can be connected to voltages higher than the substrate voltage. Utilizing this feature of a MOS transistor provides a way to design an integrated circuit which can handle negative voltageswings as well as positive voltage swings.
Patent CA-2128520-A1 (CA)
Title: Preparation of optically active aliphatic carboxylic acids
Inventor: CHOUDHURY AZFAR A
IPC: C07C69/612
Filed: 1992-12-18
Abstract: A process for the separation of a racemic mixture of certain aliphatic carboxylic acids or esters thereof is disclosed. In this process: i) a solid racemic mixture of an aliphatic carboxylic acid or ester thereof having formula (I), where R1 is hydrogen or C1 to C6 linear or branched alkyl; R2, R3 and R4 are different and are hydrogen or C1 to C6 linear or branched alkyl;  cycloalkyl; alkyl-substituted cycloalkyl; C6 to C14 aryl;  C1 to C6 alkylthio; C2 to C8 cycloalkylthio; C6 to C10 arylthio; C6 to C10 arylcarbonyl; C4 to C8 cycloalkenyl;  trifluoromethyl; halo; or C4 to C5 heteroaryl; is heated to a temperature sufficient to produce a first homogeneous melt; ii) an inorganic or organic base is added to said first homogeneous melt thereby producing a second homogeneous melt; iii) said second homogeneous melt is treated with a chiral organic nitrogenous base; iv) a solid salt that is the reaction product of the chiral organic nitrogenous base and one of the diastereomers in said racemic mixture of the aliphatic carboxylic acid or ester thereof is precipitated from the reaction melt mixture formed in step iii);  and v) the precipitated salt is separated.
Patent CA-2129332-A1 (CA)
Title: Retracting tip trocar assembly
Inventor: ROTH ALEX T
IPC: A61B17/34
Filed: 1993-03-01
Abstract: A retracting tip trocar assembly (1) including a trocar tube (4) and a shaft (3) having a piercing tip (5) at one end thereof. The device includes a retracting mechanism (A) which allows the piercing tip (5) to be held in a cutting position upon application of an insertion force such as when the piercing tip (5) is pressed against a wall of a human body cavity. Upon release of the inser-tion force, such as when the piercing tip (5) passes through the wall, the retracting mechanism (A) causes the piercing tip (5) to be retracted into the trocar tube (4). The retracting mechanism includes two links (1) pivoting at one end to each other and at the other end respectively to the proximal end of the obturator shaft and to the handle housing (2a).
Patent CA-2131322-A1 (CA)
Title: Hat pouch
Inventor: BAKSTAD BARRIE
IPC: A42B1/24
Filed: 1994-08-31
Abstract: A hat pouch inconspicuously positioned in the interior top portion of a hat is disclosed.  The hat pouch comprises:  a bag having an opening;  bag closure means which is preferably a velcro TM strip, and;  bag anchor means to attach the bag to the interior top portion of the hat.  Access to the pouch may be either through a cut in the top portion of the hat or alternatively, from the interior of the hat.  In a preferred aspect of the invention the bag anchor means is a velcro TM strip.  In another aspect of the invention, in which a hat is provided having a pouch therein, the bag anchor means is stitching to the hat. The hat pouch may be utilized to store a folded rain shield for the hat, or other small objects which the wearer has no convenient place to carry.
Patent CA-2133319-A1 (CA)
Title: Exerciseur
Inventor: MARX GUENTER W
IPC: A63B23/04
Filed: 1993-03-30
Abstract: L'invention a trait à un dispositif d'entraînement, utilisé surtout pour renforcer les groupes de muscles sollicités pendant l'équitation. Il se compose d'un support (12), de deux éléments horizontaux (26, 28) fixés au support (12) constituant les bras d'un V et de surfaces de support (32, 34) sur les éléments horizontaux (26, 28).
Patent CA-2136494-A1 (CA)
Title: Screw necks for openings in the container wall and/or bottom of sheet metal containers
Inventor: SCHUETZ UDO
IPC: B65D41/08
Filed: 1994-11-23
Abstract: The wall  (2)  of  a sheet metal container  (1)  for the transport  and  storage  of  liquid  goods  features  a  central filling opening (3), which includes a neck (5)  formed at the wall vertically from an upper surface (4) of the wall (2).  A ring  (6)  of plastic or metal with an outer thread  (7)  is provided on the neck  (5),  which is pressed from an outwardly rolled upper edge  (8)  of the neck  (5)  downwards against the upper surface  (4).   The thread ring  (6)  is secured against twisting by means of positively configured connections on the neck  (5).   A  plastic  sealing cover  (11)  is  screwed on the thread  ring  (6)  into  which  a  disc-shaped  insert  (12)  of precious   steel   is  pressed.    A   ring  groove   (15)   for accommodating a sealing ring (16)  is moulded into the insert between the outer edge  (13)  of the cover insert  (12)  and a ring shoulder (14) of said cover insert (12) by means of which the sealing cover (11)  is sealed against the outwardly rolled upper edge (8) of the neck (5).
Patent CA-2137054-A1 (CA)
Title: Position detector
Inventor: THEIL THOMAS
IPC: G01D5/12
Filed: 1994-11-30
Abstract: A position detector operable to detect the position of a moving body by generating an electrical signal and feeding it to an electronic processing means whenever the moving body reaches a predeterminable position has an energy storage means which, when the body approaches the predeterminable position, accumulates and stores a part of the kinetic energy of the body in the form of potential energy and, when said predeterminable position is reached, abruptly liberates the stored potential energy in the form of kinetic energy. The detector further has a means for conversion of the kinetic energy into an electrical energy pulse which is fed to the electronic processing means, whereby the electronic processing means operates reliably even when its regular power supply has failed and the moving body is approaching the predeterminable position at a very low speed.
Patent CA-2137890-A1 (CA)
Title: Process for the preparation of level-off dp cellulose
Inventor: BERGFELD MANFRED J
IPC: C08B15/02
Filed: 1994-12-12
Abstract: Level-off DP cellulose, which can be disaggrega-ted  in  aqueous  suspension  with  the  application  of mechanical force to give microcrystalline cellulose, is prepared by partial hydrolysis of cellulose in such a manner that the cellulose is subjected to partial hydro-lysis in a pressurized reactor using water under a gas pressure  of  0.1  to  60 bar  of  oxygen  and/or  carbon dioxide, measured at 20°C, at a temperature of 100 to 200°C until the levelling-off DP has been reached. The partial hydrolysis is preferably carried out under a gas pressure of 0.5 to 30 bar, measured at 20°C, and in a temperature range from 140 to 180°C.
Patent CA-2139682-A1 (CA)
Title: Radiation reduction apparatus for a portable radio communication device
Inventor: BICKERT PAUL F
IPC: H04B1/38
Filed: 1995-01-05
Abstract: Radiation reduction apparatus for a portable communication device having antenna near field radiation pattern redistribution means for redistributing away from a user of the radio communication device near field radiation, the antenna near field radiation pattern redistribution means mountable in proximity to a radiant communication device antenna on an opposed side of the antenna to the user.
Patent CA-2140252-A1 (CA)
Title: A snow grooming device
Inventor: HAUG WALTER
IPC: E01H4/02
Filed: 1993-12-02
Abstract: A snow grooming device is provided with a carrier frame consisting of at least one transverse supporting member and two longitudinal supporting members so that it is adapted to be attached to a vehicle with the aid of a coupling means.      A vertically adjustable snow propeller and a smoothing board are mounted on the carrier frame. Said carrier frame is mounted on said coupling means such that it is adapted to be pivoted about an essentially horizontal longitudinal axis and an essentially horizontal transverse axis.      In order to improve the snow grooming device with respect to its manoeuverability and ease of operation as well as with respect to its compact structural design while simultaneous-ly increasing the rigidity, the snow propeller is dragged by the front ends of the longitudinal supporting members and is pivotably mounted thereon and the transverse supporting mem-ber is associated with the coupling means so as to support the carrier frame.
Patent CA-2140763-A1 (CA)
Title: Gene detection system
Inventor: MITSUHASHI MASATO
IPC: C12Q1/68
Filed: 1993-01-29
Abstract: A method for detecting the presence of a particular organism, infectious agent, or component of a cell or organism in a biological sample. A polynucleotide probe capable of hybridizing to an analyte polynucleotide belonging to the organism, infectious agent, or cellular component is bound to a solid support, such as a microtiter well, thereby forming a solid support-polynucleotide structure. A second, labeled polynucleotide probe is then hybridized to this support-polynucleotide structure. Alternative embodiments make use of the Polymerase Chain Reaction. Also included in the present invention are polynucleotide probes and primers.
Patent CA-2143224-A1 (CA)
Title: An aqueous coating agent and its use in processes for coating plastics substrates
Inventor: SCHREIBER PETER
IPC: C09D123/28
Filed: 1995-02-23
Abstract: 7.5 to 25 wt.% of at least one epoxide resin in the form of a dispersion, with respect to the resin solids, 1.5 to 15 wt.% of at least one water-miscible polyamine, 2 to 15 wt.% of at least one chlorinated polyolefin with a degree of chlorination of 15 to 40 wt.%, 0 to less than 5 wt.% of one or more organic solvents, 85 to 35 wt.% of water, and conventional lacquer additives, pigments and/or fillers.            The coating agents are suitable for use in processes for coating plastics substrates, in particular polyolefin substrates.
Patent CA-2143585-A1 (CA)
Inventor: LOW WILLIAM R
IPC: F25J1/02
Filed: 1995-02-28
Abstract: A process and apparatus for liquefying a natural gas, having a pressure above about 800 psig, in which the natural gas is introduced into an expander which operates to reduce the pressure of the natural gas and extract work from the expansion of the natural gas during the pressure reduction so that the resulting effluent from the expander can be cooled to sequentially lower temperatures by passing the gas through a plurality of cooling stages, in indirect heat exchange with at least one refrigerant, until the gas is substantially completely condensed in the last of the cooling stages.
Patent CA-2144966-A1 (CA)
Inventor: DEMURO DAVID M
IPC: H04B1/16
Filed: 1994-07-29
Abstract: An external power supply (22) powers an electronic device (20) having rechargeable cells (70). The external power supply (22) provides power (26) having a voltage which tracks the rechargeable cells. The voltage of the external power supply preferably tracks with an offset above the voltage (86) of the rechargeable cells. An external power supply type indicating device (130), such as a resistor, indicates to the electronic device the type of external power supply. The external power supply (22) can thus provide power for fast-charge or trickle-charge operations, and charge control circuitry within the electronic device is capable of accurately controlling charge of the rechargeable cells based upon the type of external power supply indicated by the resistor.
Patent CA-2146585-A1 (CA)
Inventor: GIBBS DAVID E
IPC: A61B17/88
Filed: 1995-04-07
Abstract: Apparatus and method for catheterized delivery or infusion of medication and anaesthesia are disclosed. The perforating catheter is first used to perforate the periodontal ligament and/or the cortical plate of bone tissue, and is then left in place and used as a catheter for insertion of a hypodermic needle of smaller gauge to deliver medication or anaesthesia to a target area. The perforator is a bevelled needle for drilling into the ligament or bone tissue. For drilling, the device comprises an adaptor which transmits the rotational movement from a dental hand piece or the like to the bevelled needle. A cap is also included for protecting the bevelled needle during storage of the device. The adaptor may have a rod which extends axially into the bevelled needle when the device is assembled for drilling.  The rod is used to prevent the debris resulting from drilling from blocking the passage in the bevelled needle. As well, the rod reinforces the needle and maintains the alignment between the perforator and the adaptor for improved drilling efficiency.
Patent CA-2148559-A1 (CA)
Title: Hair bleaching process by laser irradiation and cooling; device for carrying out said process
Inventor: CAISEY LAURENCE
IPC: D06L4/50
Filed: 1995-05-03
Abstract: Process and device for the cosmetic partial or complete lightening of hair comprises irradiating the hair with a laser beam with impulses at a frequency of ≥ 10 Hz which degrades the melamine in the hair. Locks of hair are passed repeatedly through the laser beam until the desired colour is obtained. During treatment the hair is cooled to prevent heat damage. <IMAGE>
Patent CA-2150742-A1 (CA)
Title: Self-configuring computer system
Inventor: FORD JEFFREY V
IPC: G06F9/445
Filed: 1995-06-01
Abstract: A  self-configuring  computer  system,  which  configures  and  loads appropriate software to support custom configurations without manual intervention by the user or  the manufacturer,  is disclosed.  The invention includes an "interrogation" module, stored on a system disk and loaded when the computer is first activated, that scans the system for  components  requiring  specific  software  to  operate.     The interrogation module obtains identification data from these components and, based thereon, enables a startup module to select the appropriate software from a series of disk-based files. The startup module also executes configuration software having a characteristic naming pattern when the system is first activated, performs various one-time setup or configuration operations on at least the main system disk to render it compatible with the operating system, and selects the proper version of the operating system for the purchased system.
Patent CA-2150855-A1 (CA)
Inventor: DREYER VOLKER
IPC: G01F23/296
Filed: 1995-06-02
Abstract: The determination and/or monitoring of a predetermined material level in a container is effected with the help of a material level sensor which contains a mechanical oscillatory structure, an electromechanical excitation transducer and two electro-mechanical reception transducers. The mechanical oscillatory structure is secured at the height of the predetermined mate-rial level in such a way that it comes into contact with the material when said material reaches the predetermined material level. Each reception transducer is connected to the input of an assigned circuit channel, which contains an amplifier cir-cuit, the output of which is connected to the excitation trans-ducer and which is so constructed that the mechanical oscilla-tory structure is excited to produce oscillations with its natural resonance frequency. The two circuit channels are acti-vated alternately by means of a control circuit. Furthermore, each circuit channel contains a measuring signal transducer which produces a measuring signal which on the one hand con-tains the information about the frequency of the output signal of the amplifier circuit, and to which on the other hand an identifier assigned to the circuit channel has been added, said identifier being different from the identifier assigned to the other circuit channel.
Patent CA-2150879-A1 (CA)
Title: Automatic vending machine for newspapers, magazines and the like
Inventor: ROSELLI PIETRO
IPC: G07F11/04
Filed: 1995-06-02
Abstract: This invention refers to an automatic vending machine for newspapers, magazines and the like, which is comprised of a casing (11) with a pick-up opening (14) in the bottom base, a carriage (18), sliding along two guide bars (17), driven by a screw-split nut coupling for progressive feed of newspapers up to the pick-up opening.    For dispensing one newspaper at a time, a cam (26) is provided which couples and rotates with said screw (21).