baber/WOPTO huggingface dataset:
Patent CA-2297889-A1 (CA)
Title: Alpha 1a adrenergic receptor antagonist
Inventor: LARSEN ROBERT D
IPC: C07D401/04
Filed: 1998-07-31
Abstract: This invention relates to crystalline pharmaceutically acceptable salts of an alpha 1a adrenergic receptor antagonist, Compound A, which are useful in the treatment of benign prostatic hyperplasia. Pharmaceutical compositions employing the crystalline salts, and processes for making and using the crystalline salts and pharmaceutical compositions of Compound A are also disclosed. This invention further relates to a process for obtaining enantiomerically pure intermediate useful for the synthesis of end product alpha 1a adrenergic receptor antagonists. The end product compounds are useful for the treatment of benign prostatic hyperplasia and for relaxing lower urinary tract tissue. The invention also relates to a process for preparing a class of dihydropyrimidinone compounds of which Compound A is a member, wherein the process involves deprotonating a dihydropyrimidinone compound and then coupling the deprotonated derivative with a primary amine.
Patent CA-2297950-A1 (CA)
Inventor: BENTIVOGLI NERIO
IPC: B21J15/06
Filed: 1998-07-27
Abstract: A rivet gun includes a pneu-matic motor (4), that drives a seg-ment stem (7). A pneumatic cylin-der (21) actuates a hydraulic cylin-der (22) which sends oil under pressure to an expansion chamber (10) provided for moving back the segment stem (7) and buckling the rivet (2) fixing it to a laminate structure (100). The rivet gun also includes a change-over switching device (30) linked to controls (50, 60) for reversing rotation of the motor (4). The controls (60) in-clude an inlet valve (61) operated by a trigger (64) for connecting a compressed air infeed duct (14) with a feed-discharge duct (23) leading to the pneumatic cylinder (21). A discharge valve (63) is dis-posed in series with the inlet valve (61) and has an adjustment ring (176) for adjusting of the maximum traction force. Another discharge valve (90) is disposed in series with the discharge valve (63) previously mentioned and is provided for ad-justment of the stroke of the seg-ment stem (7).
Patent CA-2299727-A1 (CA)
Title: Optical glucose detector
Inventor: DOBSON PETER J
IPC: A61B5/1455
Filed: 1998-08-05
Abstract: A device for the in vivo measurement of the concentration of an analyte in an aqueous solution comprises a transmitter for illuminating a body part with light at a plurality of predetermined wavelengths. A detector receives light from such body part and generates input signals representative of the intensity of received light at each of the predetermined wavelengths, and a computer coupled to the detector generates an output signal representative of the analyte concentration in the body part by analysis of the input signals received from the detector. The detector is adapted to generate input signals representative of the intensity of light received at three discrete wavelengths, and a formula is provided for calculating the output signal on the basis thereof.
Patent CA-2302774-A1 (CA)
Inventor: ANDERSON DEWEY CHARLES
IPC: G06F17/30
Filed: 1998-08-12
Abstract: Systems and methods for arranging records in search results to be provided in response to a data inquiry of a database. After search results including records are received, a determination is made with respect to the order of the records in the search results.  This determination may be based on various factors such as the destination of the search results, the preferred status of certain records over other records, a marketing determination with respect to the records, a frequency determination with respect to the number of times that a record or records may have already been provided in response to data inquiries, a weighting factor determination or a combination of one or more of these factors. In response to the determination of the order of the records in the search results, the records then are arranged into ordered records based on the determination. This order may be an alphabetical order, a preferred order based on the preferred status of certain records over other records, a least frequent first order, a highest weighting factor first order, or a combination of these orders. The search results with the records arranged into ordered records are then provided in response to the data inquiry.
Patent CA-2306468-A1 (CA)
Inventor: JOHNSON DONALD B
IPC: G09C1/00
Filed: 1998-11-02
Abstract: A signature verification protocol is provided for ElGamal-like signature schemes. The digital signature verification scheme allows the signor of the message to verify the digital signature without using the public key. Generally the signors computer system has a private key d and a public key y derived from an element g and the private key d. The method comprises the steps of in the computer system signing a message m by generating a first signature component by combining the element g, the signature parameter k according to a first mathematical function and generating a second signature component by mathematically combining the first signature component with the private key d, the message m and the signature parameter k, and the signor verifying the signature by recovering a value k from the signature components without using the public key y and utilizing the recovered value k' in the first mathematical function to derive a value r' in order to verify the signature parameter k and k' are equivalent, thereby verifying the signature. This signature verification applies to all ElGamal-type signatures and works in any group and in particular elliptic curve groups. The signature verification method is of particular use in devices having limited computational power such as 'smart cards' or where a large number of verifications are to be performed by the signor.
Patent CA-2306697-A1 (CA)
Title: Low ph lactic acid fermentation
Inventor: CARLSON TING LIU
IPC: C12P7/56
Filed: 1998-10-13
Abstract: A process for producing lactic acid which includes incubating acid-tolerant lactate producing microorganisms, such as acid-tolerant homolactic bacteria, in nutrient medium to produce a fermentation broth with high levels of free lactic acid is provided. Isolated acid-tolerant homolactic bacteria capable of producing high levels of free lactic acid are also provided.
Patent CA-2306973-A1 (CA)
Title: Flow rate sensor, flow meter, and discharge rate control apparatus for liquid discharge machines
Inventor: MIYAJIMA HIROMITSU
IPC: F23N5/18
Filed: 1998-10-14
Abstract: A pipe line (4) for fluid to be detected is formed so that heat from a flow rate detector (12) in which a thin-film heating element and a thin-film temperature sensing element are laminated on a first surface of a substrate through an insulating layer is transferred to and absorbed by the fluid. In the flow rate detector (12), the temperature sensing which is affected by the heat absorption of the fluid due to the heating of the thin-film heating element is executed by the thin-film temperature sensing element, and the flow rate of the fluid in the pipe line (4) is detected on the basis of the temperature sensing result. A fin plate (14) extending into the pipe line (4) is joined to a second surface of the substrate of the flow rate detector (12) by a joint member (16), and the fin plate (14) extends so as to pass through the central portion on the circular section of the pipe line (4). The dimension of the fin plate (14) in the direction of the pipe line (4) is larger than the dimension Lz of the thickness.    Accordingly, even when the fluid is viscous fluid having relatively high viscosity, and further even when the flow rate is relatively small or under a broad environmental temperature condition, the flow rate of the fluid flowing in the pipe line (4) can be accurately measured.
Patent CA-2307531-A1 (CA)
Title: Seat for a wheeled carriage or chair
Inventor: JANSEN KLAUS
IPC: A61G5/10
Filed: 2000-05-04
Abstract: When a backrest (12) of a seat (10) is pivoted, the centre of gravity of the person sitting or reclining in the seat (10) is changed. This results in the risk of the seat (10) together with its supporting frame tipping over when the inclination of the backrest (12) is changed. According to the invention, it is envisaged that when the backrest (12) of the seat (10) is pivoted, the seat surface (11) and preferably also the backrest (12) can be displaced on a horizontal path with respect to the supporting frame. This enables the change in the centre of gravity which occurs in a horizontal direction when a person is transferred from a sitting position into a reclining position or vice versa to be compensated for. As a result, the centre of gravity of the person does not change, at least in a horizontal direction, if the backrest (12) is adjusted. The risk of tipping over when the backrest (12) of the seat (10) is pivoted up or down is thereby avoided. It is furthermore envisaged, according to the invention, to couple the seat (10) releasably to the supporting frame. The supporting frame can be a wheeled carriage, chair frame or the like for children or disabled people, in particular for young disabled people.
Patent CA-2308428-A1 (CA)
Title: Aromatic heterocyclic compounds as anti-inflammatory agents
Inventor: GILMORE THOMAS
IPC: A61K31/4436
Filed: 1998-10-29
Abstract: Novel aromatic heterocyclic compounds inhibit cytokines production involved in immunoregulation and inflammation such as interleukin-1 and tumor necrosis factor production. The compounds are therefore useful in pharmaceutic compositions for treating diseases or pathological conditions involving inflammation such as chronic inflammatory diseases.
Patent CA-2311525-A1 (CA)
Inventor: HORN WOLFGANG
IPC: G05B19/404
Filed: 1998-10-23
Abstract: The invention relates to a method for measuring the position and/or orientation of interacting machine units in measuring machines, handling devices or especially tools, spindles and workpieces in machine tools. At least one machine unit can move in relation to another and at least the positions of the machine units can be corrected. The invention is characterised in that each machine unit comprises sensors which measure at least two variables (distance, angle, orientation) or a variation thereof, and the planar or spatial position and/or orientation of said machine units in relation to each other or in relation to a common reference system or different reference systems is measured simultaneously or substantially simultaneously, continuously or at regular intervals that are as short as possible, independently of the drive axes of said machine units and without placing the sensors or machine units in a special measuring position.
Patent CA-2312569-A1 (CA)
Inventor: MIYAJIMA ATSUO
IPC: B29C48/21
Filed: 2000-06-27
Abstract: A process for manufacturing a hose of low fuel permeation from a blend of NBR containing 43 to 50% by weight of acrylonitrile and PVC, in which the molded product is vulcanized under heat, while it is held in its shape as a hose to prevent deformation by its own weight. The process provides a hose of low fuel permeability comparable to that of FKM at a low cost.
Patent CA-2314694-A1 (CA)
Inventor: GRAF RALPH A
IPC: D01G19/10
Filed: 2000-07-28
Abstract: In an arrangement for a circular comb, employed for processing fibers supplied in the form of a fiber band and rotatable about an axis of rotation, with at least two arrangement sections arranged behind one another in the circumferential direction of a circular cylindrical mantle surface rotating about the axis of rotation, wherein the engagement section that engages first the fiber band upon rotation of the circular comb about the axis of rotation provides a lesser combing effect than at least one of the follower sections passing subsequently through the fiber band, a further developatent is proposed according to which at least one of the follower sections has a greater length in the circumferential direction than the engagement section.
Patent CA-2320669-A1 (CA)
Title: Device for reading magnetic tags
Inventor: DAMES ANDREW NICHOLAS
IPC: G01V15/00
Filed: 1996-04-03
Abstract: A tag reader which comprises a plurality of permanent magnets disposed in a circular array around a gap, the poles of the permanent magnets being disposed so that each of the magnets has its pole of one polarity (for example North) positioned on the inside of the circular array, and its pole of the opposite polarity (for example South) positioned on the outside of the circular array; and a coil disposed coaxially with the circular array adjacent to the permanent magnets.
Patent CA-2320719-A1 (CA)
Inventor: MATTISSON SVEN
IPC: H04W88/06
Filed: 1999-03-02
Abstract: A short-range radio transmitter of a communication device comprising a short-range radio and a long-range radio is controlled to delay packets which are scheduled to be transmitted at the same time as a long-range transmitter of the long-range radio commences or discontinues to transmit. A frequency synthesizer of the short-range radio is thereby not affected by a change in the power supply voltage which otherwise occurs at these moments due to transmission with high power by the long-range transmitter.
Patent CA-2320847-A1 (CA)
Title: Method and device for pulling on a limb a tubular compressive orthotic device such as a stocking, tights or sock made of knitted elastic textile material
Inventor: GARDON-MOLLARD CHRISTIAN
IPC: A47G25/90
Filed: 1999-03-02
Abstract: The method comprises the following steps: a) enveloping the limb (22), over a length corresponding at least to the length of the orthosis (18), in a flexible sleeve (10) of material having a low coefficient of friction and great strength in traction and resistance to tearing, the limb possibly having dressings or bandages present thereon; b) the orthosis is put on over that portion of the limb which is enveloped by the sleeve, with this being performed manually, causing the orthosis to slide over its entire length on the sleeve interposed between the orthosis and the limb; and c) once the orthosis has been put on and put into place, the interposed sleeve is extracted by traction, the sleeve sliding between the orthosis and the limb which then come mutually into contact as the sleeve is extracted.
Patent CA-2322283-A1 (CA)
Title: Optical switch for headset
Inventor: MAXON ERIC K
IPC: H04M1/05
Filed: 1999-02-24
Abstract: An optical switch for controlling an operative condition of a (telephone) headset.      The headset includes a microphone boom that is rotatable with respect to a housing for the headset. A rotator element is coupled to the microphone boom such that the rotator element rotates with respect the housing along with the microphone boom. Selected portions of a surface of the rotator element are conditioned to be more reflective than the remaining portions. Alternately, portions of the rotator element are opaque. A pair of optical transceivers are in fixed positions relative to the housing. When the microphone boom is positioned approximately straight upward with respect to a user's head, reflective portions of the rotator element are within a field of view of each optical transceiver of the pair. In this position, the headset is in an "off' or "standby" mode. When the microphone boom is positioned approximately level with the ground, a reflective portion of the rotator element is not within the field of view of the first optical transceiver, while a reflective portion is within the field of view of the second optical transceiver.      In this position, the headset is in a "mute" mode. When the microphone boom is pointing downward, a reflective portion is not in the field of view of either of the two optical transceivers. In this position, the headset is in a "talk" mode. The optical transceivers are less susceptible to wear, contamination and misalignment, and occupy less space than prior mechanical switch devices.
Patent CA-2323855-A1 (CA)
Title: Convertible swing/highchair and method of use
Inventor: SITARSKI GERALD P
IPC: A47D13/10
Filed: 2000-10-20
Abstract: A child support device is disclosed that can be converted between a highchair configuration and a swing configuration. The support device includes a frame from which a U-shaped swing arm is rotatably mounted. A child seat is located on the U-shaped arm such that it can be slid between a distal position at the bottom of the U-shaped swing arm (swing configuration) and a proximal position at the upper ends of the U-shaped swing arm (highchair configuration). When in the highchair configuration, a swing lock can be provided to rotatably lock the U-shaped swing arm with respect to the frame such that the seat cannot swing. The swing lock can include a retractable post that can be extended to contact a portion of the frame to prevent rotation of the swing arm. An over rotation stop can also be provided to limit the angle of rotation through which the seat swings when in the swing configuration, and to work in conjunction with the retractable post to lock the swing arm in place when in the highchair configuration. A reversible softgoods device is also disclosed to provide padding for the child support. The softgoods device includes a first layer and second fluid resistant layer that can be selectively exposed from the child support device.
Patent CA-2325303-A1 (CA)
Title: Optical element
Inventor: YAMAGUCHI JUN
IPC: H01S3/14
Filed: 2000-11-10
Abstract: An optical element comprises a solid material in an optical path of the optical element, wherein the solid material comprises a first material and a second material, and the first and second materials have first and second temperature coefficients of refractive index, respectively, wherein the first temperature coefficient of refractive index has a sign which is opposite that of the second temperature coefficient of refractive index.
Patent CA-2325882-A1 (CA)
Title: Dispositif d'indication de position correcte
Inventor: KIMMORLEY KENNETH ROBERT
IPC: A63B69/00
Filed: 1999-03-26
Abstract: L'invention concerne un dispositif d'indication servant à indiquer un mouvement de swing de golf prédéterminé ou à indiquer une position de ski prédéterminée. Ce dispositif comporte des pièces rapportées (1, 6, 10, 22) qui sont conçues et qui peuvent être placées, lors de l'utilisation, pour signaler de manière tactile à l'utilisateur qu'une position prédéterminée a été gardée ou perdue. Le dispositif est particulièrement adapté au golf puisque, lorsque le joueur n'est pas en train de réaliser un swing, aucune indication tactile ne lui est présentée.
Patent CA-2326385-A1 (CA)
Title: Procede et appareil permettant l'utilisation d'idees et de concepts dans des programmes d'ordinateur
Inventor: KIRCHMAN KEVIN A P
IPC: G06F17/27
Filed: 1999-03-29
Abstract: L'invention concerne un procédé et un appareil permettant à des programmes d'ordinateur de définir symboliquement des idées et des concepts. Les procédé et appareil comprennent une grammaire pouvant être utilisée pour représenter n'importe quel concept. On analyse les phrases, au moyen de cette grammaire, pour définir leurs composants. Comme partie du procédé d'analyse, chaque mot est comparé au contenu d'une base de données d'un dictionnaire. La base de données de dictionnaire et un ensemble de tables de temps-mode permettent d'identifier des mots individuels en tant que concepts, entités, actions ou déterminants. Le procédé d'analyse permet de créer une structure de données (200) pour chaque phrase. La structure de données organise la phrase en composants, tels qu'un champ ID (202) et des champs POC (204). On peut comparer les structures de données de différentes phrases pour déterminer une correspondance ou une similarité. On peut également traiter les structures de données pour atteindre des objectifs plus poussés, tels que des systèmes de raisonnement ou des systèmes experts.
Patent CA-2327866-A1 (CA)
Title: Table searching technique
Inventor: KAMETANI JUN
IPC: H04L12/70
Filed: 2000-12-07
Abstract: A searching system allowing high-speed data searching and operation is disclosed. A search table is provided which stores a copy of an entry that has been retrieved from a database to retrievably store a plurality of retrieved entries. Further, an address pointer table is provided which stores a list of retrieved entries which are linked from a leading one to a bottom one. A search processor can access a plurality of retrieved entries by referring to the list stored in the address pointer table so as to be consistent with a corresponding entry stored in the database when the corresponding entry has been updated.
Patent CA-2328791-A1 (CA)
Inventor: HOLDERBAUM THOMAS
IPC: C11D17/00
Filed: 2000-12-18
Abstract: A compression process is provided for producing multiphase tablets, especially laundry detergent or cleaning product tablets, which comprises the steps of a) producing core tablets comprising active substance, b) optionally inserting one or more core tablets from step a) into a die of a tableting press, c) filling at least one particulate premix into the die of the tableting press, d) supplying at least one core tablet from step a) into the die of the tableting press, e) optional single or multiple repetition of steps c) and/or d), f) carrying out compression to give tablets, it being possible, if desired, to conduct steps c) and d) in the opposite order, and in at least one of process steps b), c), d) or f) the upper and/or lower punch of the tableting press having a nonplanar pressing face.
Patent CA-2328924-A1 (CA)
Title: Magnetically operated apparatus for dispensing a chemical
Inventor: CHOWN PETER ARTHUR CHARLES
IPC: B65D83/16
Filed: 1999-04-12
Abstract: Apparatus (2) for dispensing a chemical, which apparatus (2) comprises an aerosol container (10) which contains the chemical, electromagnetic means (12), and control means (14), the electromagnetic means (12) being operable between a first state in which the chemical is not dispensed from the aerosol container (10) and a second state in which the chemical is dispensed from the aerosol container (10), and the control means (14) being such as to control the operation of the electromagnetic means (12) such that the electromagnetic means (12) is in the second state for predeterminable periods, and the apparatus being characterised in that the electromagnetic means (12) extends around the aerosol container (10), and magnetically attractable material is provided for the aerosol container (10) such that the aerosol container (10) is able to be moved by the electromagnetic means (12) for the purpose of dispensing the chemical from the aerosol container (10).
Patent CA-2332516-A1 (CA)
Title: Fluidized bed combustion system with steam generation
Inventor: GUMMEL PETER
IPC: F22B31/00
Filed: 1999-05-17
Abstract: The combustion system for an industrial installation operates at least partly with solid fuel. The installation has a heat exchange chamber (1) having an inner height of at least 10 m. The chamber has four vertical outer walls encompassing an approximately rectangular area in a horizontal cross-section. A turbulent combustion chamber (2, 3) having an inner height of 10 to 60 m is arranged in front of a first outer wall ( 1 a) of the heat exchange chamber (1) and a second outer wall (1c) located opposite to the first outer wall. Each turbulent combustion chamber (2, 3) has an inner height of 10 to 60 m and lines for supplying fuel and combustion air. At least one separator (5,7) for separating solids from a gas flow is connected to the top section of each turbulent combustion chamber (2,3), said separator having a gas discharge line (9) that is connected to the top section of the heat exchange chamber (1).