baber/WOPTO huggingface dataset:
Patent CA-2236986-A1 (CA)
Inventor: HILL JAMES D
IPC: E05B49/00
Filed: 1998-05-06
Abstract: A charging circuit, for use in electronic devices such as a self-powered electronic lock wherein the power is provided to the electronic controls of the lock by a manually manipulated generator, includes a pair of zener diodes connected in series with one of the zener diodes bridging between the voltage outputs of two separate generatingphases of the generator and the second diode connected in series with the first diode bridging between one of the voltage outputs and ground. The placement of the zener diodes in series will limit the charging of one capacitor to a first low voltage and a second capacitor to a higher voltage, the voltages respectively controlled by the first zener diode and the second higher voltage being the sum of the two zener diode ratings. The beneficial effects flowing from such a network: 1) the ability to charge two capacitors to differing voltage levels from a single generator providing an output voltage from each of two different phases of the generator; and 2) substantiallyshortening the charging time and the amount of generator operation required to bring the larger of the two capacitors to its full charge by combining the output of both phases of the generator to charge the capacitor with the larger capacitance when the capacitor having the smaller capacitance has been charged to a voltage level above that of the capacitor with the larger capacitance.
Patent CA-2239217-A1 (CA)
Inventor: TOMKO GEORGE J
IPC: G07C9/00
Filed: 1996-12-03
Abstract: A person wanting an entitlement, such as welfare, typically inputs his fingerprint to a database. On a match with a fingerprint already in the database, a profile of the person with the matching fingerprint is retrieved to guard against double dipping. There is a concern for the privacy of the information in the database. To assure privacy, the profile associated with each fingerprint in the database is encrypted so that when a new person attempts to enroll and a matching fingerprint is found in the database, the associated profile returned is encrypted. In order to access this encrypted profile, PINs are required from one or two authorized operators. The PIN of an authorizes operator is stored on a card in an encrypted fashion such that it may be recovered by the authorized operator inputting his fingerprint to the system. One or both PINs are needed to decipher the profile.
Patent CA-2243630-A1 (CA)
Title: Controller for power converter
Inventor: MORIKAWA RYUICHI
IPC: H02J3/50
Filed: 1998-07-21
Abstract: The controller for a power converter of the present invention, connects a transformer in series with the AC system, and has devices which find the voltage drop portion generated by the impedance of this transformer when introducing a voltage in series by an inverter into the above-mentioned AC system via this transformer, and control the output of the above-mentioned inverter to compensate this voltage drop portion.
Patent CA-2245540-A1 (CA)
Title: Dual-curing coating formulation and method
Inventor: CANTOR STEPHEN E
IPC: H05K3/28
Filed: 1997-01-23
Abstract: The polymerizable acrylate formulation, and method utilizing the same, employ a catalyst system that includes a tertiary aromatic amine compound and an air-curing polyether-ene polymer, in a specified ratio, in combination with an acid ingredient and a transition metal that together form a coordination compound. The formulation cures through bulk, as well as on the surface, in a highly effective manner.
Patent CA-2248759-A1 (CA)
Title: Methode et appareil de sechage et de nettoyage d'objets au moyen d'aerosols
Inventor: FERRELL GARY W
IPC: B08B3/10
Filed: 1997-03-13
Abstract: Méthode et appareil pour sécher et nettoyer des objets (13A, 13B, 13C) qui auraient pu être mouillés ou contaminés au cours d'un processus de fabrication. Les objets sont plongés dans un liquide rinçant (27) à l'intérieur d'une chambre fermée (11), après quoi des particules d'aérosol (39) d'un liquide choisi (37) sont introduites dans la chambre au-dessus de la surface du liquide rinçant (29), formant une fine pellicule (30) à la surface en question. Au fur et à mesure que l'on vide (41) lentement le liquide rinçant, quelques particules d'aérosol se déposent sur les surfaces exposées (14A, 14B, 14C) des objets, déplaçant et enlevant les restes du liquide rinçant des surfaces exposées grâce à l'effet d'"essorage chimique". Les contaminants des surfaces sont enlevés de la même manière. Lors du vidage de la chambre du liquide rinçant, la pression à l'intérieur de celle-ci est maintenue à un niveau proche de la pression atmosphérique.
Patent CA-2248816-A1 (CA)
Title: Rotatable sheet support structure for a twin-sheet thermoformer
Inventor: HART JAMES P
IPC: B29C51/14
Filed: 1998-10-07
Abstract: Multiple legs elevate a central ring bearing, to which a ring-shaped rotatable plastic sheet support carousel is mounted. The carousel is fitted with a ring gear which engages with a drive system to position the carousel and the thermoplastic sheets supported from it. A multi-post vertical press is positioned with two posts extending upwardly interior to the ring bearing, and two posts extending upwardly exterior to the ring bearing. The ring bearing thus extends through the press, allowing the carousel to supply and remove plastic sheets to and from the press. An upper platen and a lower platen are mounted for vertical displacement to the posts, thereby ensuring a high degree of parallelism between the molds mounted to the platens, and accurate twin-sheet thermoforming.
Patent CA-2249927-A1 (CA)
Title: Multifunction processor timer
Inventor: PREDKO MYKE
IPC: G06F1/025
Filed: 1998-10-09
Abstract: The programmable timer for use in a microprocessor has a counter and a reset register each connected to a databus of the microprocessor, and a first comparator for comparing the counter against the reset register in providing the result of the comparison at a first comparison output. The counter includes a clock signal input for counting clock pulses.  The counter may be reset to a reset value via a reset input provided on the counter. The reset register may receive and store a digital value from the microprocessor. The first comparison output is connected to the reset input in order to reset the counter when the counter reaches a count greater than or equal to the value stored in the reset register thereby providing a periodic signal at the first comparison output. The programmable timer may operate in various modes including, an interval timing mode, a PWM encode mode and a pulse timing mode.
Patent CA-2250642-A1 (CA)
Inventor: BHAT SHIVARAM
IPC: G06F12/14
Filed: 1998-10-14
Abstract: An access control database defines access rights through the use of access control objects. The access control objects include group objects, each defining a group and a set of users who are members of the group, and rule objects. Some of the rule objects each specify a set of the group objects, a set of the management objects, and access rights by the users who are members of the groups defined by the specified set of the group objects to the specified set of management objects. A plurality of access control servers are used to process access requests. Each access control server controls access to a distinct subset of the management objects in accordance with the access rights specified in the access control database. At least one of the access control servers receives access requests from the users and distributes the received access requests among the access control servers for processing. A subset of the access requests specify operations to be performed on specified sets of the management objects. Each of these access requests is sent for processing to one or more of the access control servers in accordance with the management objects to which access is being requested. The access control servers responding to the access requests from the users by granting, denying and partially granting and denying the access requested in each access request in accordance with the access rights specified in the access control database.
Patent CA-2251041-A1 (CA)
Title: Linear ablation device and assembly
Inventor: SCHAER ALAN K
IPC: A61M25/00
Filed: 1997-04-08
Abstract: An intravascular device for the formation of linear lesions which has particular utility in the treatment of atrial fibrillation and flutter. The intravascular device has an outer delivery sheath (11) with a distal section (25) which has an elongated opening (28) and a support member (26) coextending with the opening (28). An EP device (12) having a plurality of electrodes (32) on its distal portion (31) is slidably disposed within the inner lumen (13) of the delivery sheath (11) but it is secured by its distal end within the distal extremity of the delivery sheath (11) at least while in operation. In this manner an axial force in the distal direction on the proximal extremity of the EP device (12), which extends out of the patient during the procedure, will cause the distal portion of the EP device (12) to arch outwardly out of and away from the distal section (25) of the delivery sheath (11) and engage the surface of the patient's heart chamber. High frequency, e.g. RF, electrical energy delivered to the electrodes (32) on the distal shaft section (31) of the EP device (12) will form a linear lesion which terminates the fibrillation or flutter.
Patent CA-2254913-A1 (CA)
Title: Configuration of an atmospheric pressure ion source
Inventor: WHITEHOUSE CRAIG M
IPC: H01J49/24
Filed: 1997-05-17
Abstract: An apparatus includes an atmospheric pressure ion source for producing ions for delivery into a vacuum; a vacuum system housing attached to pumps for pumping away gas to form the vacuum; and a removable insert assembly which includes at least three vacuum pumping stage partitions for maintaining three vacuum stages in the apparatus when the insert assembly is inserted into the vacuum system housing.
Patent CA-2255759-A1 (CA)
Title: Flat light emitter
Inventor: VOLLKOMMER FRANK
IPC: H01J61/30
Filed: 1998-03-20
Abstract: The invention relates to a flat light emitter with dielectrically impeded strip-like cathodes (12; 15) and anodes (8; 9a) which are alternately arranged on the wall of the discharge vessel (14). The inventive device has an additional anode (9b) between each adjacent cathode (12; 12, 15), i.e. a pair of anodes (9) is respectively arranged between said cathodes (12; 12, 15). The cathodes (15) have nose-shaped extensions (28) facing each adjacent anode (8). Said extensions are more densely arranged as they advance towards the edges (26, 27) of the light emitter (13). Alternately or additionally, both anode strips (9a; 9b) of each anode pair (9) are wider on one side in the direction of each partner strip (9b or 9b) as they advance towards the edges (26, 27) of the light emitter (13). Such a design enables the surface luminance of the flat light emitter (13) to remain substantially constant even at the edges (26, 27, 29, 30).
Patent CA-2257294-A1 (CA)
Title: Process for the purification of human interleukin-1 receptor antagonist from recombinant e. coli
Inventor: ZANETTE DINO
IPC: C12N15/09
Filed: 1997-05-21
Abstract: A process for purifying human Interleukin-1 receptor antagonist (IL-1ra), obtained by fermenting a strain of recombinant E. coli, which comprises: a) loading the mixture to be purified, which has been buffered at a pH value lower than 6.2 and optionally diluted to reduce its ionic strength at a low value, onto a cationic exchange matrix and eluting said matrix with an aqueous buffered solution having a pH value from about 7.5 to 9.0 and a low ionic strength; and b) applying the eluate from the cationic exchange step, containing the desired IL-1ra protein, directly onto an anionic exchange matrix and eluting with an aqueous buffered solution having a pH value within the above range 7.5 to 9.0 and an increased ionic strength.
Patent CA-2257656-A1 (CA)
Title: Image reading apparatus
Inventor: MASUDA MINORU
IPC: H04N1/31
Filed: 1993-03-19
Abstract: A paper feed roller (5) is divided into a first roller (5a) and a second roller (5b); a slit (58) through which about 10 to 20 sheets of documents can pass is formed between the first roller and a gate plate (57) opposite to this; and the paper fed out therefrom is fed out to a space between the second roller (5b) and a separation pad (7) in contact with this.     Also, there is adopted a construction in which the pressing force of a paper conveyance spring is transformed by a slide cam sliding in a direction parallel to the paper feed roller; and the paper width detection sensor is assembled by a fitting construction.
Patent CA-2258288-A1 (CA)
Inventor: BERGESON DAVID L
IPC: C09J7/22
Filed: 1997-09-29
Abstract: An anti-dew article with an adhesive layer than results in improved durability to outdoor conditions is described. The anti-dew layer has a polymeric base layer and inorganic oxide particles surface layer. The adhesive that bonds the anti-dew film to a substrate is a cross-linked acrylate pressure sensitive adhesive with a low glass transition temperature and essentially no tackifiers. The adhesive is especially valuable for adhering an anti-dew film on a retroreflective traffic sign. The resulting sign exhibits excellent durability in a variety of weather conditions including cold weather.
Patent CA-2263251-A1 (CA)
Inventor: STICKEL DANNY L
IPC: E21C35/04
Filed: 1999-02-26
Abstract: A fire suppression system for a mining machine including a movable mining machine, such as a continuous miner, a hose attached to the continuous miner and a thermally actuated valve in fluid communication with the hose. The thermally actuated valve is normally closed unless it is heated above an activation temperature in which case the thermally actuated valve is in an open position. A nozzle is provided in fluid communication with the thermally actuated valve through a conduit. A pressure switch or a flow switch is provided in fluid communication with the conduit and is coupled to a controller which indicates if water is flowing through the second conduit.      This information can be displayed on a monitor.
Patent CA-2267098-A1 (CA)
Title: Lubricant for supercharger and method for obtaining same
Inventor: THIEBAUX JEAN-MARIE
IPC: C10M169/04
Filed: 1997-09-29
Abstract: The invention concerns a lubricating oil for superchargers containing at least one lubricating base characterised in that it contains 0.3 to 30 wt. % of at least one polymer of the group consisting of polyolefines obtained from ethylene and propylene, and the copolymers of these olefins, said polymer being in the form of powder, granules or microsized particles in solid state dispersed in said base at room temperature.
Patent CA-2267233-A1 (CA)
Inventor: CRAY PAULA J
IPC: A61K35/74
Filed: 1997-10-10
Abstract: La présente invention concerne une préparation effectuée à partir de prélèvements sur des animaux sains, cultivée et administrée à ces animaux. Ladite préparation fournit une forte protection contre la colonisation ultérieure par des bactéries entéropathogènes, dont des espèces Salmonella, des espèces Campylobacter et Escherichia coli 0157:H7, qui ont actuellement une incidence inacceptablement élevée sur la morbidité et la mortalité chez les humains et réduisent la productivité des populations animales.
Patent CA-2270086-A1 (CA)
Title: New benzothiophene, benzofuranic and indolic derivatives, their preparation process and pharmaceutical compositions containing them
Inventor: NANTEUIL GUILLAUME DE
IPC: A61K31/4709
Filed: 1999-04-26
Abstract: Benzothiophene, benzofuran and indole derivatives (I) are new. Benzothiophene, benzofuran and indole derivatives of formula (I) and their salts are new: X = O, S or NR3; R3 = H, 1-6C alkyl, 1-6C acyl, aryl, 1-6C arylalkyl or 1-6C heteroarylalkyl; Y = O, S, NR3 or single bond when X is NR3 and R3 is 1-6C heteroarylalkyl; Z' = N when the bond to the carbon (i) is single, or C or CH when the bond is single or double; A = single bond, 1-6C alkylene (optionally substituted by one or more 1-6C alkyl, aryl, 1-6C arylalkyl, cycloalkyl or heterocyclic ring), arylene, cycloalkylene, heterocyclic ring or -SO2-R4- (Z' being bond to SO2); R4 = 1-6C alkylene, arylene, 1-6C arylalkylene, cycloalkylene or heterocyclic ring; W1 = OH, 1-6C alkoxy, aryloxy, 1-6C arylalkoxy, cycloalkyloxy, heterocyclic ring (bond to O or amino (optionally substituted by 1-6C alkyl, aryl, 1-6C arylalkyl or cycloalkyl) or hydroxyamino; Ra-Rd = H, halo, OH, CN, NO2, 1-6C alkyl, 1-6C alkoxy, 1-6C acyl, carboxy, 1-6C alkoxycarbonyl , 1-6C trihalogenated alkyl, amino (optionally substituted by one or two 1-6C alkyl) or 1-6C arylalkoxy;   R1 = aryl (substituted by 1-5 halo, OH, CN, NO2, carboxy, 1-6C alkyl, 1-6C alkoxy, 1-6C trihalogenated alkyl, 1-6C trihalogenated alkoxy, amino (optionally substituted by one or two 1-6C alkyl (one optionally substituted by amino, 1-6C alkylamino or dialkylamino)), 1-6C arylalkoxy, 1-6C aminoalkoxy (amino optionally substituted by one or two 1-6C alkyl) or heteroaryl (optionally substituted); and R2 = H, 1-6C alkyl, aryl, 1-6C arylalkyl, cycloalkyl, heterocyclic ring, 1-6C alkyl-heterocyclic ring or, when Z' is C or CH, 1-6C alkylamino or 1-6C arylalkoxycarbonylamino; provided that Ra-Rd can not be all H. An Independent claim is also included for the preparation of (I).
Patent CA-2270124-A1 (CA)
Title: 9a,11b-dehydro derivatives of 9-oxime-3-keto-6-0-methylerythromycin
Inventor: WU YONG-JIN
IPC: A61P31/04
Filed: 1999-04-23
Abstract: Disclosed are compounds of the formula: (see formula 1) (wherein R1 is H, alkyl, acyl, carboxyl, alkoxycarbonyl, carbamoyl, etc.; and R5 is H, alkoxycarbonyl or alkenoyl) and to pharmaceutically acceptable salts thereof, useful in the treatment of infections.
Patent CA-2274211-A1 (CA)
Title: Transducer arrangement for partially or fully implantable hearing aids
Inventor: LEYSIEFFER HANS
IPC: H04R25/00
Filed: 1999-06-11
Abstract: The invention relates to a transducer for a partially or fully implantable hearing aids for direct mechanical excitation of the middle or inner ear. The transducer is provided with a housing fixedly mounted at the implantation site and a coupling element moveable with respect to the housing for transmitting vibration to the middle ear ossicle or directly to the inner ear. The housing accommodates an electromagnetic component such as a coil which is fixed relative to the housing and a vibratory component such as a permanent magnet which is mechanically connected to the coupling element such that the vibration of the vibratory component is transferred to the coupling element.
Patent CA-2276309-A1 (CA)
Title: Curved ultrasonic blade having a trapezoidal cross section
Inventor: BEAUPRE JEAN M
IPC: B26D7/08
Filed: 1999-06-25
Abstract: A curved ultrasonic blade including a concave top surface, a convex bottom surface and a central ridge running along the concave top surface is described. In a curved blade according to the present invention the blade has a cross section which is substantially trapezoidal. The blade edges may be sharp or blunt and the convex bottom surface has a width of at least two times the width of the central ridge and, preferably, three times the width of the central ridge. A balanced ultrasonic instrument including a curved blade having a trapezoidal cross section is also described. A balanced ultrasonic surgical instrument according to the present invention includes an ultrasonic transmission rod which is connected to the curved blade by a balance portion which includes first and second balance asymmetries designed to compensate for the imbalances induced by asymmetry of the curved blade.
Patent CA-2276461-A1 (CA)
Title: Engine intake air heater
Inventor: BARKE OTTO
IPC: F02N19/04
Filed: 1999-06-25
Abstract: The invention provides an apparatus for heating the intake air of an internal combustion engine. A fan and heating element are mounted inside a housing connected to the air intake of an engine. The fan draws air through the housing where it is heated by the element and pushed through a conduit to the air intake of an engine. The heat output of the element may be automatically adjusted according to the ambient air temperature, and/or manually adjusted. After a suitable length of time, when the engine should reach its normal operating temperature, the fan and element are deactivated.
Patent CA-2278010-A1 (CA)
Inventor: MAYES-SMITH JOYCE
IPC: A61Q17/00
Filed: 1998-01-15
Abstract: L'invention porte sur des procédés et des compositions douces et non irritantes permettant de réduire et d'éliminer les états dermatologiques, notamment les lésions et les rougeurs associées à l'acné. Les compositions aqueuses à base d'alcool contiennent un composé kératolytique, de préférence un acide .beta.-hydroxy carboxylique, plus souhaitablement un acide salicylique ou un sel pharmaceutiquement acceptable de celui-ci; et un ester ou sel de phosphate d'un polyol en C¿2?-C¿18? non saccharide ou un polyol mono- ou disaccharide formulé avec des supports pharmaceutiquement acceptables. Des sels de glycérophosphate préférés destinés à être utilisés dans les procédés et les compositions de l'invention sont le glycérophosphate de sodium et le glycérophosphate de calcium. Il n'est pas nécessaire d'ajouter des agents anti-irritants dans les compositions de l'invention, le sel de glycérophosphate seul conférant aux compositions des propriétés non irritantes. D'autres composants pouvant être formulés dans les compositions de l'invention sont des parfums, des colorants, des émollients, des humectants et des agents anti-microbiens.
Patent CA-2281117-A1 (CA)
Title: Mfb speaker system with controllable speaker vibration characteristic
Inventor: KYONO NOBORU
IPC: H04R3/00
Filed: 1999-08-31
Abstract: An acoustic signal is input to a first voice coil of a speaker unit. A vibration information detecting unit comprised of a vibrational displacement detecting unit, a vibrational velocity detecting unit, a vibrational acceleration detecting unit, amplifiers, and an adder adds a signal indicating the vibrational displacement x, a signal indicating the vibrational velocity v and a signal indicating the vibrational acceleration .alpha.. A power amplifier inputs the sum signal to a second voice coil of the speaker unit using a positive feedback or negative feedback.
Patent CA-2281482-A1 (CA)
Title: Post-foaming shower gel
Inventor: SEMOFF STEVEN
IPC: C11D17/04
Filed: 1999-08-26
Abstract: A post-foaming composition in combination with a dispenser adapted to dispense a fine stream of the composition onto skin that foams upon contact. The composition contains a material which is a volatile liquid at atmospheric pressure and between 5% - 50% w/w surfactant solids. The composition may be dispensed as a mist, foam, gel or liquid at a rate between 0.5 grams/sec and 10 grams/sec.
Patent CA-2282451-A1 (CA)
Title: Air actuated parcel pusher for a continuous conveyor
Inventor: BONNET HENRI
IPC: B65G17/06
Filed: 1998-02-19
Abstract: A package conveying system including an on-conveyor pushing assembly powered by an off-conveyor power source, with a "floating" power connection interface synchronized with the conveyor. This floating power connection interface can be provided by an endless air-filled "inner tube" having air ports thereon, can be provided by an endless belt having air-supplying nozzles thereon supplied with air from corresponding air supply tubes, or can be supplied by use of an endless belt having electrical contacts thereon.