baber/WOPTO huggingface dataset:
Patent CA-2235764-A1 (CA)
Inventor: GIRERD JEAN-JACQUES
IPC: B01J31/18
Filed: 1996-11-15
Abstract: Selective oxidation process for organic substrates by contacting said substrates with an oxidant selected amongst hydroperoxides and/or hydrogen peroxide in the presence of a catalyst containing a metal complex of a least one multicoordinating nitrogenated ligand characterized in that the molar ratio metal complex/peroxide is comprised between 1 and 10?-10¿, the temperature is lower than 120 ·C, and the metal complex has the general formula: [L¿x? M¿y? X¿u?]?z¿ Y¿q? with M a manganese or iron atom in oxidised condition, X a bridge between metals, Y a counter-ion, x and y being >= 1, 0 <= u <= 3, z being the charge of the metal complex and q = z/charge of Y, and L is a ligand having the formula: R¿1? Ar¿1? N - (CH¿2?)r - N Ar¿2? R¿2?, with Ar¿1? and Ar¿2? being linear C¿1? to C¿6? carbon chains, linked to a nitrogenated heterocycle, R¿1? and R¿2? being hydrogen or a C¿1?-C¿6? alkyl chain optionally connected to a nitrogenated heterocycle, 2 <= r <= 4.
Patent CA-2236536-A1 (CA)
Title: Safety door assembly, in particular a sterile door
Inventor: BUROW KURT
IPC: E06B7/23
Filed: 1997-07-15
Abstract: The invention concerns a safety door assembly (1) for delimiting safety rooms and sterile rooms, the door assembly having a door frame (2) and a single-leaf door (3).  The door leaf (3) carries at its edge, facing the frame (2), a peripheral hose-type seal (8) of rubber of plastics which forms part of the sealing system (5), is sealingly connected to the door leaf (3) and can be inflated with a predetermined sealing force against an autogenic restoring force. The frame surface facing the door leaf (3) takes the form of a flat, non-deformable sealing counterface (7), against which the inflated hose-type seal (6) is sealingly supported when the door leaf (3) is closed and the sealing system (5) switched on. The sealing system (5) is automatically controlled and arranged such that the sealing force additionally locks the closed door leaf (3) securely against the frame (2) via frictional engagement and is unlocked in a pressure-relief time interval of a few seconds.
Patent CA-2237580-A1 (CA)
Inventor: O'NEILL HUGH
IPC: A47C27/10
Filed: 1996-11-14
Abstract: L'invention concerne un système (10) formant un coussin de soutien en position assise, comprenant un coussin (14) formant un siège, pourvu d'une cellule gonflable (45) qui est gonflée de façon que les branches du H alternent avec une paire de cellules intérieures (54, 56) placées dans les espaces définis par le H, une cellule (56) étant située à l'arrière dudit coussin (14). Cette cellule arrière (56) comporte également, de préférence, une cavité (60) et une partie secondaire transversale (56a) adjacente à la cellule transversale (44). Un coussin (12) formant un dossier comprend deux ensembles (18, 25) de cellules (19-23, 26-29) gonflées et alternées, s'étendant latéralement et formant une cavité (27a) destinée à la colonne vertébrale de la personne assise, et une paire de cellules de soutien latérales (32, 34) gonflables, situées sur les côtés opposés, s'étendant dans le sens longitudinal et contiguës au bord extérieur des cellules de dossier (19-23, 26-29) s'étendant latéralement.
Patent CA-2239274-A1 (CA)
Title: Common high-power amplification of adjacent-channel signals
Inventor: HULICK TIMOTHY P
IPC: H04N5/38
Filed: 1998-05-29
Abstract: Use of a single high-power amplifier, for common amplification of adjacent-band television signals, is not only possible, but practical and economical. Such adjacent-band signals can include analog-format signals such NTSC signals, and digital-format signals such as DTV signals, in all combinations (NTSC/DTV, DTV/NTSC, NTSC/NTSC and DTV/DTV). The amplifier preferably includes a tetrode-class tube (such as a diacrode) and a properly-chosen cavity resonator. Circuits provide analog-format (e.g., NTSC) and digital-format (e.g., DTV) signals under control of a common frequency reference. The amplifier input receives a signal from a device that cleanly and linearly combines the NTSC and DTV signals at broadcast frequency, and amplifies the combined signal for transmission through a single, common antenna. Thus, not only may a single antenna be used for transmission of adjacent-band analog-format and digital-format signals, but interference between the transmitted analog-format and digital-format signal components is avoided by virtue of the substantial linearity of the combiner and amplifier components.
Patent CA-2239427-A1 (CA)
Title: A stress relieved grinding rod having hard outer shell
Inventor: PUGH ROBERT WILLIAM
IPC: C21D1/18
Filed: 1998-06-02
Abstract: A grinding rod having a hardened outer shell of tempered martensite is adapted for use in heavy duty grinding environments. The rod is stress relieved to reduce internal compressive stresses in the tempered martensitic shell to less than 60 ksi and greater than 15 ksi. Such stress relieve stabilizes the rod against break-up as caused by the balancing tensile stresses in the pearlitic core exceeding tensile strength of the core.
Patent CA-2240612-A1 (CA)
Title: Preparation of phenol and its derivatives
Inventor: BOGDAN VIKTOR IGNATYEVICH
IPC: C07C39/04
Filed: 1998-06-11
Abstract: A method and a catalyst are described for selective oxidation of aromatic compounds (e.g., benzene and its derivatives) into hydroxylated aromatic compounds (e.g., corresponding phenols). For example, benzene can be converted into phenol with a yield of at least 30-40%, and a selectivity on the basis of benzene of at least 95-97%. The selectivity for this reaction based on N2O is at least 90-95%. Therefore, no substantial N2O decomposition or consumption for complete benzene oxidation to CO+CO2 or other side products occurs. Similar results are obtained with benzene derivatives (e.g., fluorobenzene, difluorobenzene, phenol), although the selectivity is somewhat lower in the case of derivatives (e.g., about 80-85% in the case of fluorosubstituted benzenes). A preferred catalyst for this process is a composition containing a high-silica pentasil-type zeolite (e.g, an HZSM-5 type zeolite) which contains no purposefully introduced additives such as transition or noble metals. The catalytic effect is achieved by performing a specific zeolite modification with strong Lewis acid-base centers of a specific nature. This modification can be achieved by a pretreatment comprising two steps: a first conventional calcination step at 300-600 °C, and a second high-temperature calcination step at 600 - 950°C.
Patent CA-2247941-A1 (CA)
Title: Spectroscopy
Inventor: CARANGELO ROBERT M
IPC: G01N21/35
Filed: 1997-02-19
Abstract: A non-contact spectroscopy system includes scanning head structure with transmitting optics (42) for focusing radiation onto the surface of material (10) to be analyzed, and receiving optics (48) for collecting radiation reflected from the surface of the material (10) and directing the reflected radiation onto optic fiber structure (52) for transmission to spectroscopic analyzer structure (54).
Patent CA-2248380-A1 (CA)
Title: A process for the isolation of protein concentrates on their native state from milk under sterile conditions
Inventor: MARTIN GENEVIEVE
IPC: A23J1/20
Filed: 1998-10-08
Abstract: The procedure includes the suspension of freshly collected milk in acetone, then filtration under reduced pressure or centrifugation with or without an inert gas atmosphere. The process allows preservation of enzymatic activity of milk and presumably immunoglobulin properties, and native structure of lipids. Acetone has bactericidal and viricidal effects (Goodman et al. 1980) that provide the advantages of pasteurization while keeping the properties of raw milk.  Traces of acetone are removed by ventilation with air or an inert gas.
Patent CA-2248704-A1 (CA)
Title: Machine pour la preparation des sols
Inventor: GOSSOP JOHN
IPC: A01B77/00
Filed: 1997-03-13
Abstract: L'invention concerne une machine pour la préparation des sols. Cette machine comprend un moyen de levage du sol (6, 7) pour soulever une couche du sol, un moyen de rupture du sol (8) pour briser la couche du sol, et un châssis (1) auquel sont fixés le moyen de levage du sol (6, 7) et le moyen de rupture du sol (8).
Patent CA-2248913-A1 (CA)
Inventor: LASCHKEWITSCH ROGER
IPC: A21C3/06
Filed: 1997-03-14
Abstract: A winding assembly (10) for manufacturing individual pieces of rolled product includes a sliding rolling unit (12), a product feed guide (14), a drive unit (16), a timing regulator (18) and a securing unit. Several alternative roll-up devices are featured including a vacuum device (630), a three-legged prong device (230) and a forced air device (730). Preferably a nozzle (110) deposits a drop of edible adhesive adjacent the trailing end of a strip of support material, which is then used to adhere the trailing end to the back side of the next outermost winding, keeping the roll in a woundup state.
Patent CA-2250056-A1 (CA)
Title: Rigid structural members and structures for buildings and retaining means for securing sheets thereto
Inventor: WATSON ROBERT LORNE
IPC: E04H15/64
Filed: 1997-01-24
Abstract: A rigid structural member (24, 26) for a building in which the member has four sides each provided with a groove (27, 28) having a narrow opening. Two of the grooves on two opposite sides may be used to assemble structural members together to provide completed building assemblies by the use of screw-threaded members (37) while, in the completed assembly, the other two grooves are used for holding two building enclosure sheets (52, 54) in spaced positions, one on each side of the completed assembly. For this purpose, elongate holding members (56) are located in the grooves to hold the sheets in place. The holding members have a particular design which secures them in place within the grooves. The grooves are preferably T-shaped and are all of the same size and shape to increase the versatility. In addition, the structural member may be formed into building structures which are hinged together such that they may be in a collapsed condition for storage and transportation or may be relatively pivoted into an erected condition.
Patent CA-2251051-A1 (CA)
Title: Laminated spring structure and flexible circuitry connector incorporating same
Inventor: ZIELKE HENRY
IPC: H01R12/79
Filed: 1998-10-21
Abstract: A flexible circuitry connector includes an improved contact spring assembly that is compared with a plurality of discrete spring elements arranged longitudinally along the connector.  Flexible circuitry is supported by the spring elements and held against a circuit card by each such spring element in a manner such that the spring elements apply a series of discrete contact forces for the length of the spring assembly, thereby eliminating any problems due to circuit card thickness variations and warpage as well as other compliance issues..
Patent CA-2252694-A1 (CA)
Title: Use of hydroxamated polymers to alter bayer process scale
Inventor: AVOTINS PETER V
IPC: C01F7/0633
Filed: 1997-04-23
Abstract: The processing of bauxite in the Bayer Process results in the formation of titanaceous, siliceous, and other scale on equipment and apparatus such that a great deal of time and effort is spent in order to maintain the process at its height efficiency by reducing or eliminating the same. The scale is treated, reduced, altered, etc., according to the present invention by the use of hydroxamated polymers having weight average molecular weights ranging from about 1,000 to less than about 10,000.
Patent CA-2253613-A1 (CA)
Title: Therapeutic treatment for vegf related occular diseases
Inventor: JIROUSEK MICHAEL R
IPC: A61K31/00
Filed: 1997-05-01
Abstract: A method for inhibiting VEGF stimulated endothelial cell growth, such as associated with macular degeneration, and VEGF stimulated capillary permeability, such as associated with macular edema are disclosed, particularly using the isozyme selective PKC inhibitor, (S)-3,4-[N, N'-1,1'-((2"-ethoxy)-3"'(O)-4"'-(N,N-dimethylamino)-butane)-bis-(3,3'-indolyl)]-1(H)-pyrrole-2,5-dionehydrochloridesalt.
Patent CA-2257763-A1 (CA)
Title: Process for remote monitoring of the prescribed positioning of a protective cap affixed over the needle of a medical syringe, and device for performing the process
Inventor: VETTER HELMUT
IPC: A61M5/34
Filed: 1999-01-07
Abstract: The invention provides a method for testing the integrity of a security cap placed over a needle of a syringe, comprising the steps of (A) applying a high voltage to the needle, which acts as a first electrode, and to an second electrode placed outside the security cap; and (B) monitoring the current flow between the electrodes; wherein if a predetermined current level is exceeded the integrity of the security cap is deemed to be compromised, with the proviso that the security cap is made from a material having a higher dielectric constant than that of the ambient gas.
Patent CA-2260346-A1 (CA)
Title: Process furnace
Inventor: CARGLE GREGORY B
IPC: F22B21/40
Filed: 1999-01-25
Abstract: A twin-cell furnace for process stream preheat and utility steam superheat. The furnace uses a pair of vertical radiant cells with top supported, bottom guided, single row, multiple pass vertical coils fired on opposite sides by floor-mounted burners. An overhead convection section is centered between the radiant cells.      Induced and forced draft fans are placed over the convection section to draw combustion gas into the stack and supply air through an air preheater, between the convection section and the stack, and to the floor burners and supplemental convection section burners. Additional convection coils are positioned in the hip section between the radiant cells and the convection section. The furnace design has reduced plot space requirements, increased flexibility in heating multiple services, and allows more even heating of the radiant tubes, and easier radiant tube replacement.
Patent CA-2261631-A1 (CA)
Title: Mixing device for liquids
Inventor: HAMMON ULRICH
IPC: B01F27/91
Filed: 1997-08-04
Abstract: Mixing device for the blending of at least two liquid phases, containing a housing (1) with an inside diameter D, in which at least one agitator (2) is equipped with two to five segment shaped blades presenting a radius of curvature K, in which the circular area inside the housing (1), covered by the rotating agitators, has a diameter E, and in which K ranges from 0.10*D to 0.30*D, preferably from 0.125*D to 0.25*D, and E ranges from 0.35*D to 0.65*D, preferably from 0.45*D to 0.55*D.
Patent CA-2261864-A1 (CA)
Title: Integrated circuit device manufacture
Inventor: SMITH CHARLES GORDON
IPC: H01L25/065
Filed: 1997-08-06
Abstract: A method of manufacturing an integrated circuit device from a plurality of physically separate individual electrical elements comprises the steps of manufacturing each of said plurality of elements and verifying the operability of each of said elements.       Inoperable elements are discarded and the operable elements retained in a fluid. The retained elements are aligned so that each element is adjacent to at least one other element and the arrangement of elements treated to provide connections therebetween and thereby to produce a single integrated circuit device.
Patent CA-2263011-A1 (CA)
Title: Vacuum cleaner with three stage air induction system
Inventor: SHIMIZU YUICHI
IPC: A47L5/22
Filed: 1999-02-25
Abstract: A vacuum cleaner includes a housing, a nozzle for picking up dirt and debris, and a vacuum generator. The vacuum generator includes a motor and drive shaft, a first fan connected to the drive shaft, a shield including a recess that functions as an air induction chamber for receiving the fan, and an air inlet port formed in the shield. A pathway provides fluid communication between the nozzle and the vacuum generator. A dirt and debris collector in the form of a dust bag is provided in the pathway between the nozzle and the vacuum generator. The vacuum cleaner also includes an infuser that is carried on the shield about the air inlet port. The infuser directs air into the induction chamber in a more efficient manner to improve vacuum cleaner performance.
Patent CA-2264314-A1 (CA)
Inventor: KUMARAN KRISHNAN
IPC: H04B7/26
Filed: 1999-03-02
Abstract: A method for operating a wireless telecommunications system whereby communication channels are efficiently allocated to cells of the system is provided. In accordance with an illustrative embodiment of the present method, call demand information is obtained for each cell in the wireless system and converted to a channel demand. Once the channel demand for each cell is known, a tentative channel allocation is performed. Call demand information can be obtained as frequently as desired to update channel allocation throughout the wireless system. In some embodiments, the method for channel allocation described herein can be used alone to allocate channels. In other embodiments, the present method for channel allocation can be used on an hourly, daily, or other temporal basis, as appropriate, to provide a channel allocation which is then updated on a substantially continuous basis by any conventional dynamic channel allocation scheme. To allocate channels, an "interference graph" that relates interfering cells to one another is defined. When nearest-cell interference is considered, an initial step is performed wherein three channels are iteratively allocated to all cells in the system to remove all groupings within the interference graph comprising three mutually-interfering cells.  During the initial step, the allocation of three channels reduces channel demand by one in every cell.  Once the interference graph is free of such three-membered groupings, channel demand is reduced more efficiently wherein no more than five channels are allocated to satisfy two units of channel demand. To do so, a decomposition/reconstruction operation is performed wherein the interference graph is segregated into groupings of cells to which channels are allocated. The operation for allocating channels to cells when nearest- and next-to-nearest-cell interference is considered does not use the initial step of allocating three channels. It does, however, proceed in a manner analogous to the decomposition/reconstruction process mentioned above, although the operation is performed on a cell-by-cell basis, rather than with groupings of cells.
Patent CA-2264958-A1 (CA)
Title: Method for quantitation of microorganism contamination of liquids and apparatus therefor
Inventor: KANE JEFFREY F
IPC: C12M1/12
Filed: 1997-07-25
Abstract: Use of a disposable filtration capsule with a non-occluded membrane filter element in the place of a standard spiral wound cartridge allows for the more rapid and quantitative filtration, recovery, and quantitation of microorganisms in liquid, particularly surface waters, well water, tap water, and the like. The capsule allows a severe reduction in the water sample size tested, substantially minimizes risks of cross-contamination, and provides a leak-proof vessel for shipment. Risks of infection of laboratory personnel and time of analysis are both reduced. Costs of measuring contamination by microorganisms such as Giardia and Cryptosporidium is lowered significantly while increasing the accuracy and dependability of the measurement.
Patent CA-2265383-A1 (CA)
Title: Yarn tension sensor with repeated calibration
Inventor: WEBER FRIEDRICH
IPC: B65H59/40
Filed: 1999-03-12
Abstract: A yarn feeder intended particularly for flatbed knitting machines and elastic yarns has a yarn tension sensor which is provided with a calibration device. This device lifts the yarn from a peg that is part of the yarn tension sensor, at times in which this can be done without impairing operation of the yarn feeder. Such times are preferably time slots when no yarn feeding is necessary. Once the yarn has been lifted from the peg, a zero point calibration is performed; zero point drifting of the entire sensor system, including its measurement circuit 61, can be detected and compensated for.
Patent CA-2266321-A1 (CA)
Inventor: MAKHEY DARSHAN B
IPC: A61K31/473
Filed: 1997-09-23
Abstract: The present invention provides compounds of formula (I) wherein R1-R7, W, X, Y, and Z have any of the values defined in the specification, and pharmaceutically acceptable salt thereof, that are useful as anticancer agents. Also disclosed are pharmaceutical compositions comprising one or more compounds of formula (I), processes for preparing compounds of formula (I), and intermediates useful for preparing compounds of formula (I).
Patent CA-2266700-A1 (CA)
Inventor: KUSIC TOM
IPC: B64C27/08
Filed: 1998-12-21
Abstract: The helicopter is of a type that has tandem lifting rotors with a body consisting of a front section and a rear section The rear section of the body is narrower than the front section of the body, thereby allowing the rear section to travel into the front section. Channelled railings attached to the front section of the body firmly hold the rear section through railings attached to the rear section. These railings guide the movement of the rear section relative to the front section. A shaft consisting of two sections is used to synchronize the tandem arranged rotors. A narrower section of the shaft slides into the wider section of the shaft when the rear section of the body moves into the front section of the body.      Bearings support the synchronizing shaft. Bearings on the rear section of the body are able to move longitudinally along the rear section of the body to allow for spacing of the bearings during the expansion and contraction of the body. A telescopic link is used to control bearing movement on the rear section of the body.
Patent CA-2268291-A1 (CA)
Inventor: LEBLANC NICOLE
IPC: A47F7/02
Filed: 1999-04-22
Abstract: In this invention, the user has a complete view of her earrings.   This is an earring organizer.The unique design of the hanger and lower rack allows the user to see at a glance what to wear. This design also prevents damage to any of the earrings because of the hanging method which prevents chipping and scratches.      It allows all types of earrings to be hung up.      This invention relates to a new way of storing your earrings, Previously used were jewellery boxes. You would scramble to fined a pair of earrings, not always finding it quickly or scratched or damaged looking for the backs most often lost. Other methods was to just use alarge drawer creating for you a time consuming job of looking for pairs.      With the newly invented hanger rack and mesh, you simply push posts through mesh and secure with earring back ..or thread ear wire through the mesh.. or clip on clip-on to the specially designed rack.      This saves time and added exspense of lost and broken earrings.      At a glance you can choose the pair you want to wear.      Your rack hangs in your closet along with your clothes.
Patent CA-2268454-A1 (CA)
Inventor: LOUKAKOS NICOLAS
IPC: B64F5/00
Filed: 1998-08-06
Abstract: The invention concerns a system for inspecting the fuselage, the wings and the engines of an aircraft on ground, for de-icing it and protecting it against icing manually or automatically using a computer. Said system and method, whether fixed or mobile, can also be remote-controlled or controlled by a computer equipped with a modem and a mobile telephone for transmitting data instructions, and digitised video images. It consists of several interconnected modules among which a central computer (1), several video cameras (2), a hydraulic ground power unit (3), an air compressor unit whereof some compressors are reversible into aspirators (4), a telescopic cantilever crane (5), a burner unit for heating the secondary air (6), three inflatable de-icing boots of variable length (7) for covering the aircraft equipped with video cameras and projectors at each end and comprising inside hot air nozzles for drying (8) and spray arms for spraying de-icing products (9), a stand-by electric generator unit (10), a reservoir of de-icing liquid equipped with a pump and a liquidometer (11), a centralised alarm system provided with automatic stop devices (12).