baber/WOPTO huggingface dataset:
Patent CA-2259855-A1 (CA)
Title: Method of positioning an actuator
Inventor: SORSA JUKKA
IPC: G05B19/404
Filed: 1999-01-22
Abstract: The invention relates to a method for positioning an actuator. In the method, the actuator is controlled by a continuous control pulse (2a) toward a desired value (1), and the position of the actuator is measured. Further, a pulsing range limit located before the desired value (1) is defined, and when the position of the actuator is past the pulsing range limit (3), the motion of the actuator is stopped. The pulsing range limit (3) is defined to be so far from the desired value (1) that the actuator stops before its position is substantially past the desired value (1). The position of the actuator is then measured, and if necessary, a corrective run is performed.
Patent CA-2262214-A1 (CA)
Inventor: ARBESMAN RAY
IPC: F16F9/00
Filed: 1999-02-18
Abstract: The invention includes a plate for holding a friction material in a brake assembly. The plate preferably comprises a contact surface for attaching the friction material to the plate, a second surface opposing the contact surface; and a plurality of retaining structures formed on the contact surface, each retaining structure comprising a projecting member extending from a point between the contact surface and the second surface, so that the member extends outwardly from the contact surface for engagement with the friction material.
Patent CA-2262876-A1 (CA)
Title: Purine derivatives and their use as anti-coagulants
Inventor: MORRISSEY MICHAEL M
IPC: A61K31/52
Filed: 1997-08-14
Abstract: This invention is directed to purine derivatives which are useful as anti-coagulants. This invention is also directed to pharmaceutical compositions containing the compounds of the invention, and methods of using the compounds to treat disease-states characterized by thrombotic activity.
Patent CA-2264633-A1 (CA)
Title: A system and method for achieving extended radio coverage and additional capacity using extended frequency bands
Inventor: BLASER ROBERT
IPC: H04B1/52
Filed: 1997-08-29
Abstract: The present invention provides increased geographical coverage and system capacity for mobile/portable radio transceivers using adjacent and typically separate radio communication frequency bands. A radio that transceives in just one frequency band is adapted to provide a configurable duplexing arrangement to permit communications in extended frequency bands. Duplexing circuitry is connected between the radio antenna and the radio transmitter and receiver.  Depending upon the mode of operation of the radio transceiver, switches are selectively operated for variously configuring the antenna, duplexer circuitry, receiver, and transmitter to permit communications in a first or a second set of transmit/receive frequency bands. In one preferred example embodiment, only a single duplexer is employed connected to the antenna and transceiving circuitry through plural switches.
Patent CA-2265163-A1 (CA)
Title: Pulsation damper for a hydraulic elevator
Inventor: HOLMES TERRY D
IPC: F16L55/033
Filed: 1999-03-09
Abstract: A pulsation noise damper has an axially symmetrical housing (4) forming a chamber (3) in which pressurized hydraulic fluid flowing in an elevator system hydraulic line can expand. For the collection of contaminates in the hydraulic fluid a filter (6) is arranged at one of a pair of input/output openings (5) formed the housing (4). A pair of compression elements (7), each in the shape of an elastic bellows, are positioned in end openings (4a) formed in the housing (4) and the stiffness of each is selectively adjusted by a movable pressure plate (8) coupled to a fastening element (9). In this way the pulsation noise damper can be adapted to various levels of pulsation energy. The compression elements (7) are retained by end caps (1) attached to the housing by fasteners (2) and the fastening elements (9) extend through the end caps and are fixed by nuts (10).
Patent CA-2266417-A1 (CA)
Inventor: KUENZEL ROLAND
IPC: H04Q7/38
Filed: 1997-09-18
Abstract: A method for acquiring traffic data from vehicles equipped with at least one decentralized unit having at least one function for mobile communication a second function for obtaining time information and a third function for data storage. At least one central unit with control functions and processing functions assigned to a plurality of decentralized units, wherein decentralized unit receives and evaluates information characterizing radio cells, and other technical radio and transmission information and information which characterizes cell changeover is recorded together with time stamps.
Patent CA-2267391-A1 (CA)
Title: Lighting system
Inventor: GROSSMAN RICHARD E
IPC: F21S2/00
Filed: 1997-10-06
Abstract: A modular cove lighting system (450) is formed of tubular fluorescent light fixtures (454) connected together in parallel. The modular system is capable of providing uniform illumination along its length. The modular system advantageously may include straight lamps (52), curved lamps (474) (including lamps forming 90 degree angles), and/or hinged lamp fixtures. The system may be constructed with lamps that are illuminated completely from end to end, which can then be lined up end-to-end to create the illusion of one continuous lamp. Through special matching of ballasts (484) and appropriate lamps, the lamps will dim evenly with each other, regardless of the lengths and shapes of the lamps. Each lamp and ballast is completely contained in a casing (466) to form a cove lighting module. Multicolor systems formed on one or more light fixtures are also disclosed. A recessed light fixture (12) is also disclosed.
Patent CA-2268136-A1 (CA)
Title: Simultaneous double sided irradiation
Inventor: LAWRENCE COURTLANDT B
IPC: G21K1/093
Filed: 1997-10-01
Abstract: An apparatus for delivering a beam of charged particles along two separate beam paths comprising a pulsed charged particle beam source for producing a series of beam pulses along a first beam path, a switching magnet for developing a magnetic field, and a power supply means for selectively applying current pulses to said switching magnet in timed relation to each of a plurality of predetermined beam pulses effective to develop a constant magnetic field throughout the period of each predetermined beam pulse and deflect each entire predetermined beam pulse from said first beam to a second beam path.
Patent CA-2268999-A1 (CA)
Inventor: SUNDER SWAMINATHAN
IPC: F28F3/02
Filed: 1999-04-13
Abstract: A plate-fin heat exchanger or downflow reboiler/condenser which uses optimum fin dimensions to increase the efficiency of heat transfer between evaporating and condensing fluids such as cryogens (e,g., oxygen and nitrogen) is disclosed together with a cryogenic air separation unit having such a reboiler/condenser. In one embodiment, the plate-fin heat exchanger has a plurality of fins disposed between neighboring parting sheets of uniform fin height less than or equal to 0.20 inch, fin frequency greater than or equal to 25 in-1 and fin thickness less than or equal to 0.008 inch. Such optimum fins are most effectively employed at least within the first heat transfer section downstream of the hardway distributor section of the evaporating stream passages and within the entire heat transfer section between the inlet and outlet distributor sections of the condensing stream passages.
Patent CA-2269052-A1 (CA)
Title: Disjoncteur a gaz comprime haute tension
Inventor: JAENICKE LUTZ-RUEDIGER
IPC: H01H33/24
Filed: 1997-10-15
Abstract: L'invention concerne un disjoncteur à gaz comprimé haute tension comprenant un système de contact (1, 2, 3) qui comporte au moins une pièce de commutation fixe (1, 2) et une pièce de commutation mobile (3). Il est prévu comme dispositif (6, 7, 8, 9) d'égalisation du champ électrique, deux électrodes de champ (6, 7) actionnables de manière différente.
Patent CA-2270575-A1 (CA)
Inventor: DONCK DANIEL
IPC: B67B7/16
Filed: 1997-10-30
Abstract: Une pièce pour équipement domestique ou mobilier, qui comprend une coquille (1) de mollusque généralement renforcée, au moins localement, par un matériau durcissable (3) et une monture (5) solidaire de ladite coquille (1). Cette monture (5) est pourvue de moyens de solidarisation à un organe. La pièce, utilisée préférentiellement comme poignée présente une très grande résistance aux sollicitations en raison de sa structure.
Patent CA-2271793-A1 (CA)
Inventor: GOLDMAN DON S
IPC: G01N21/25
Filed: 1997-11-14
Abstract: A photometer (10) for measuring electromagnetic radiation absorption of a sample. Electromagnetic radiation is conducted from a source (14) to a sample sensor or sensors (36), and is passed through or scattered from, the sample utilizing a sample cell (37). The electromagnetic radiation is then directed to a detection system (54) which determines absorbance of electromagnetic radiation by the sample. The detection system (54) includes a beam splitter (58) which receives the electromagnetic radiation and outputs first and second beams (64, 66). A first detector (72) having a first wavelength filter (76) and a second detector (78) having a second wavelength filter (82) receives the two beams from the splitter. One detector may be employed to produce a reference signal. The remaining detector or detectors produce an output signal which is a representation of a characteristic, such as absorbance of the sample. The output signals are compared to a reference signal, and converted into a measurement of absorbance, transmission, reflection or tubidity.
Patent CA-2276908-A1 (CA)
Inventor: BIENVENU DAPHNE
IPC: H04Q3/62
Filed: 1999-07-06
Abstract: The completion on busy link control method controls access to an occupied artery section of a private telephone network. The system examines the subscribers rights (28) before allowing connection to the busy link control (26,30) which, if authorisation is allowed, routes the calls via a public system, otherwise routing must be carried out internally (31) to the private system.
Patent CA-2277145-A1 (CA)
Inventor: LAIHO ERKKI
IPC: C08L23/16
Filed: 1998-01-07
Abstract: Extrusion coating structure in which at least one layer is made of a polymer composition comprising a multimodal ethylene polymer, which contains from 80 to 100 % by weight of ethylene repeating units and from 0 to 20 % by weight of C3-C10 alpha-olefin repeating units, has a density of between 0.920 and 0.960 kg/m3, and which is a blend of at least two different ethylene polymers.
Patent CA-2277805-A1 (CA)
Title: Nonlinear optical silica material and nonlinear optical device
Inventor: NAKAMURA NAOKI
IPC: C03C3/076
Filed: 1999-07-12
Abstract: A nonlinear optical silica material mainly consisting of SiO2-GeO2 to which hydrogen or halogen element X is added. Oxygen bonded to Ge contained in the nonlinear optical silica material is replaced by H or X, and one Ge has two Ge-O bonds and one Ge-H (or Ge-X) bond at Ge points where nonlinearity is exhibited in the silica material. The Ge-H (or Ge-X) bond does not relate to a crystal network, so that when the polarity is oriented in order to exhibit nonlinearity at Ge~, an electric field to be applied can be lowered, and when a optical semiconductor hybrid element or the like is produced, other portions of the semiconductor elements can be prevented from being broken or degraded in performance. An insulating film can be interposed between the semiconductor substrate and the nonlinear optical silica film to prevent undesired impurities from dispersing into the semiconductor substrate and other elements and preventing a defect from being caused in the crystal of the substrate due to the silica film.
Patent CA-2279269-A1 (CA)
Title: Naso-gastric tube retainer
Inventor: WEISS GREGORY M
IPC: A61M25/02
Filed: 1998-01-26
Abstract: An adhesive device retains a medical tube, and particularly a naso-gastric tube, in relation to a patient with improved flexibility, strength and adhesion. The device includes a nose pad portion for attaching to a patient's nose and a tube attachment section for attaching to the naso-gastric tube. A substantially inelastic spine extends across a narrow or otherwise vulnerable neck portion, which connects the nose pad to the tube attachment section. The spine strengthens the retaining device against tensile and shear forces while allowing flexibility. At the same time, deflection of the spine does not cause internal elastic stresses sufficient to counter adhesion of the retainer to either the patient or the medical tube.
Patent CA-2282859-A1 (CA)
Inventor: NAABY-HANSEN SOREN
IPC: A61K38/00
Filed: 1998-02-25
Abstract: A method for identifying the repertoire of proteins exposed on the surface of a virus, bacterium or cell, and to the preparation of vaccines thereto. The method includes vectorially labelling proteins on the membrane surface; isolating the labelled membrane surface proteins by two dimensional gel electrophoresis; and sequencing the isolated membrane surface proteins. Also included are methods of producing a vaccine against the virus, bacterium or cell, methods of detecting infertility, methods of producing contraception and the vaccines and contraceptives produced by the methods.
Patent CA-2283967-A1 (CA)
Title: Extruder and die assembly for extruding shaped food pieces
Inventor: HUNTER THOMAS B
IPC: B29C48/345
Filed: 1998-02-18
Abstract: An extruder (1) is provided for producing an extruded food piece in a shape which simulates the shape of a natural food piece. The extruder (1) has a pressure vessel (2), a pressure exerting device (3) for the pressure vessel (2), a manifold (4) in fluid communication with the pressure vessel (2), and at least one die and cutter assembly (6) in fluid communication with the manifold (4). The die and cutter assembly (6) has en extrusion member (9) with an extrusion wall (10), a closed extrusion end (11), an opened feed end (12) attachable to the manifold (4), at least one extrusion die (13) formed in the extrusion wall (10) near the extrusion end (11), and a tubular cutter member (14). The tubular cutter member (14) has a driveable end (19), a cutter wall (16) and an opened cutter end (17) with at least one cutting surface (18) for cutting extrudate into the shape as the extrudate exits the die (13). The cutter member (14) is reciprocally slideable on the extrusion wall (10) by drive device (20).
Patent CA-2284033-A1 (CA)
Inventor: MORGAN ROBERT CLARK
IPC: C08G63/60
Filed: 1997-12-17
Abstract: La présente invention concerne un copolymère dibloc comprenant: (a) un premier bloc de polyester fait d'un polyester aromatique caractérisé par (i) une viscosité intrinsèque, mesurée au moyen d'un mélange à 60/40 en masses de phénol et de tétrachloroéthane, et revenant à au moins environ 0,6 dl/g, et (ii) une viscosité newtonienne à l'état fondu, mesurée au moyen d'un rhéomètre capillaire, et revenant à au moins environ 7.000 poises à 280 ·C; et (b) un second bloc de polyester fait d'un monomère de lactone. Ce copolymère dibloc convient particulièrement pour les matériels façonnés, les films, et la filature de fibres destinées aux applications industrielles telles que les ceintures de sécurité. L'invention concerne également un procédé de fabrication de ce copolymère dibloc utilisant une extrudeuse à deux vis pour faire fonde le polyester aromatique et le mélanger au monomère.
Patent CA-2284247-A1 (CA)
Inventor: CHONG DANIEL T
IPC: G06N5/04
Filed: 1990-09-04
Abstract: A computer which executes rules which are defined according to a language having a valid grammar. The computer comprises input means for receiving and temporarily storing a first source code representation of a rule; object code translation means for translating the first source code representation into a first object code representation executable by the computer; storage means for storing the object code representations of rules; discard means for automatically discarding from the input means the first source code representation upon the storing of the first object code representation in the storage means; source code translation means for translating the first object code representation into a second source code representation where the second source code representation has lines of text; edit means for editing the second source code representation by deleting, adding, or changing one or more of the lines of text of the second source code representation; second object code translation means for translating the second source code representation, as edited, into a new object code representation of the edited rule for storage in the storage means; and the discard means discarding the first object code and second source code representations automatically upon the storing of the new object code representation of the edited rule in the storage means. The computer thereby minimizes the storage required in the storage means for storing rules and maintains version control over the object code representations of rules stored in the storage means.
Patent CA-2285606-A1 (CA)
Inventor: DE PAZ JORGE
IPC: B60Q1/50
Filed: 1999-09-30
Abstract: The "Auto Emergency Alert" is an electronic system that provides the driver with the ability to signal passing traffic about an emergency. The signal is activated within the drivers reach and it does not block visibility and do not requires the car to be stop to be used. The system is composed of a switch and a display board. The switch controls the state of the display board either on or off and the display board can be accommodated in size to be use inside the automobile as well as outside. Any type of vehicle can use this system commercial or private, big or small. The display board can fasten to the vehicle by the use of screws, glue, magnets or security belts. All the material used for this system comply with Canadian Safety Standard as they are all marketed items.
Patent CA-2286731-A1 (CA)
Title: Hypochlorite bleaching compositions and delivery systems therefor
Inventor: NATION JAYNE ELISABETH
IPC: C11D3/395
Filed: 1998-03-23
Abstract: The invention provides a bleaching composition of pH 8-14 which comprises an oxygen transfer agent and hypochlorite or a source thereof and a method for bleaching a stained substrate which comprises the step of treating the substrate with a bleaching composition of pH 8-14 which bleaching composition comprises an oxygen transfer agent and hypochlorite or a source thereof. Oxygen transfer agents for use in the invention, include, but are not limited to, the imine quat. N-methyl-3.4-dihydroisoquinolinium salts. Where these salts are used, suitable counter-ions include halides, sulphate, methosulphate, sulphonate, p-toluene sulphonate and phosphate. Oxygen transfer agents which comprise a quaternary nitrogen atom are preferred. In the alternative, the oxygen transfer agent can be a sulphonimine.
Patent CA-2288078-A1 (CA)
Title: Lockable fuel cap
Inventor: ABNEY WILLIAM III
IPC: B60K15/04
Filed: 1998-04-21
Abstract: A lockable fuel cap (20) is provided including a closure member having a drive tooth (86) and a removal hub (28). The hub (28) includes a drive lug (74) and moves between a lock position in which the drive lug (74) is spaced-apart from the drive tooth (86) and a release position in which the drive lug (74) engages the drive tooth (86). An outer shell (22) is also provided and includes an interior wall (38) defining a guiding slot (78) to receive the drive lug (74) and guide movement of the removal hub (28) between the two positions. The shell (22) is drivingly coupled to the hub (28) so that the member (30) remains stationary upon rotation of the shell (22) when the drive lug (74) is in the lock-position. The member (30) rotates upon rotation of the shell (22) when the drive lug (74) is in the release position.
Patent CA-2288247-A1 (CA)
Inventor: DEAN DAVID L JR
IPC: G02B6/38
Filed: 1999-11-02
Abstract: An alignment sleeve for precisely aligning a pair of ferrules, such as a pair of multifiber ferrules, is provided along with an associated assembly method.  The alignment sleeve includes a sleeve member defining a lengthwise extending cavity opening through opposed ends thereof. The sleeve member can also define at least one window and, more commonly, a plurality of windows opening into the cavity. The alignment sleeve also includes a guide pin extending lengthwise through the cavity and a guide pin engagement member extending at least partially into the window defined by the sleeve member. The guide pin engagement member is bonded, such as by welding, to the guide pin such that the guide pin is retained in a floating relationship within the sleeve member. The sleeve member can also define an expansion window to accommodate expansion of the guide pin that is creating during welding of the guide pin. By retaining the guide pins in a floating relationship within the sleeve member, the alignment sleeve aligns the ferrules with increased precision since the precision of the alignment is dictated, not by the precision with which the alignment sleeve is fabricated, but by the precision with which the closely toleranced ferrules are formed.
Patent CA-2288336-A1 (CA)
Title: Method for producing cyclic lactams
Inventor: FISCHER ROLF
IPC: C07D201/08
Filed: 1998-04-30
Abstract: The invention relates to a method for producing cyclic lactams of formula (I), in which R1 stands for a hydrogen atom, an alkyl, a cycloalkyl or an aryl; A  stands for a C3-C12-alkylene radical, which can be substituted by 1, 2, 3, 4, 5 or 6 substituents, selected independently from each other from the alkyl, cycloalkyl or aryl groups. In this method, a .omega.-amino carbonic acid nitrile of formula (II) HR1N - A - CN, in which R1 and A have the meaning given above, is reacted in the presence of at least one catalyst. The method is characterized in that nitrile II is converted into an oligomer mixture and then treated with overheated water vapour.
Patent CA-2291215-A1 (CA)
Title: New delayed action catalysts for carpet backing and air frothed foam
Inventor: ERHART GERARD C
IPC: C08G18/80
Filed: 1999-11-29
Abstract: This invention relates to a process for the production of a polyurethane backing and air frothed foam on a substrate comprising the steps of a) mixing a polyisocyanate and a polyol blend in the presence of a catalyst to form a reaction mixture, b) applying the reaction mixture to a substrate, and c) curing the reaction mixture to form a polyurethane backing an/or an air frothed foam on the substrate. Suitable catalyst compositions for the present invention include those corresponding to the formula: (see above formula) wherein: each R: independently represents a linear or branched C1 to C24 (preferably from 5 to 16 carbon atoms and most preferably from 8 to 12 carbon atoms) alkyl group, or a cyclic group containing from 4 to 24 carbon atoms (preferably from 5 to 16 carbon atoms and most preferably from 8 to 12 carbon atoms).
Patent CA-2291960-A1 (CA)
Inventor: HAKAMATA YASUHIRO
IPC: A61K38/00
Filed: 1998-05-18
Abstract: The invention relates to nucleic acids and a human type 3 (hRyRe) ryanodine receptor, chimeric ryanodine receptors with fractions of the human receptor and to a method for the production of said proteins. The invention also relates to the detection of ryanodine receptors in human tissue to diagnose pathological states and to methods for identifying hRyRe activators or inhibitors.
Patent CA-2295322-A1 (CA)
Title: Methods and compositions for rapid purification of proteasomes and methods of use of components thereof
Inventor: MADURA KIRAN
IPC: G01N33/50
Filed: 1998-06-19
Abstract: Disclosed are methods for rapidly and efficiently purifying proteasomes using fusion proteins having homology to ubiquitin. Also disclosed are methods for assessing aberrant cell growth rates utilizing fusion proteins having homology to ubiquitin and a signal producing moiety.