baber/WOPTO huggingface dataset:
Patent CA-2163467-A1 (CA)
Inventor: WAGNER BURKHARD ERIC
IPC: C08F10/00
Filed: 1995-11-22
Abstract: A process for the production of an in situ particulate polyethylene blend comprising contacting a magnesium/titanium based catalyst system including a particulate precursor with one or more alpha-olefins in each of two reactors connected in series, in the gas phase, with the provisos that:        (a) the particulate precursor has a particle size distribution span of no greater than about 1.5; and (b) a high molecular weight polymer is formed in one reactor and a low molecular weight polymer is formed in one other reactor wherein the ratio of molecular weights of the high molecular weight polymer to low molecular weight polymer in the final product is at least about 8:1.
Patent CA-2163503-A1 (CA)
Title: Aminocyclopentane derivative
Inventor: OGAWA SEIICHIRO
IPC: C07D263/52
Filed: 1995-11-22
Abstract: provides aminocyclopentane derivatives which are saccharide analogs having extremely high .alpha.-glucosidase inhibitory effects and novel structures and expected to be usable or applicable to drugs  or  agricultural  chemicals.    An  aminocyclopentane derivative  represented  by  the  formula  (1),  wherein  R1 represents H while R2 represents CH2OH, or R1 represents CH2OH while R2 represents  H and R3 represents  a  substituted or unsubstituted aryl group or an alkyl,  alkenyl,  alkynyl or hydroxyalkyl group having 1 to 10 carbon atoms, intermediates for the synthesis of the same, a process for producing the intermediates and a process for producing the aminocyclopentane derivative.       ( 1 )
Patent CA-2164390-A1 (CA)
Inventor: DURWARD DANIEL G
IPC: A63H3/00
Filed: 1995-12-04
Abstract: A doll's head is adapted to have a facial facsimile image applied to it's face by having a facial area of selectively colourized flexible substrate colourized to form a non-coloured central area, the non-coloured central area having a shaded band extending radially around it between the non-coloured central area and a skin-coloured outer area, the shaded band having colourized shading increasing radially outwards in density so as to blend the non-coloured central area with the skin-coloured outer area.
Patent CA-2164833-A1 (CA)
Inventor: ZAHARCHUK WALTER S
IPC: H05B37/02
Filed: 1995-04-07
Abstract: A lighting control system operates to control multiple zones of lighting through multiple dimming circuits so as to achieve any one of several desired lighting scenes. The system includes a plurality of wallbox control units (U1, U2, U3) which collectively operate to multiplex digital lighting control information on a communications link. Each wallbox control unit includes a plurality of zone-intensity actuators (A1..A6) which are manipulatable to alter the information transmitted by their respective wallbox control so as to vary the lighting intensity of an associated lighting zone. A central lighting control panel (CP) includes a microprocessor (20) adapted to receive and process the multiplexed information transmitted on the link, and retransmit digital lighting control information, on a second multiplex link, to the dimming circuits. According to one aspect of the invention, the microprocessor (20) is programmed to assign a preselected dimming circuit to any one of the zone-intensity actuators (A1..A6) when that actuator is manipulated according to a predetermined sequence.
Patent CA-2165885-A1 (CA)
Title: Lubricant additive and lubricating grease composition containing the same
Inventor: YATSUZUKA YOSHIHISA
IPC: C10N30/08
Filed: 1995-12-21
Abstract: A lubricant additive including a borate dispersion, wherein the lubricant additive is a dispersion of an alkali metal salt of boric acid in a mixture of an alkaline earth metal salt of a salicylic acid and an alkenylsuccinimide.          The lubricant additive provides a high dropping point for grease used under a high temperature condition of 130°C or higher and per se exhibits anti-oxidant performance.  A lubricant grease composition containing the lubricating additive is also disclosed.
Patent CA-2166657-A1 (CA)
Inventor: LAAS HANS-JOSEF
IPC: C08G18/79
Filed: 1996-01-05
Abstract: Polyisocyanate polyaddition products which are solid below 40°C and liquid above 125°C, contain uretdione and urethane groups and have a content of at least 1 wt.% of urethane groups obtained from the reaction of dimeric diols with isocyanate groups; a method of producing the these products by the reaction of polyisocyanates containing uretdione groups with dimeric diols; and the use of these polyaddition compounds as the starting component in the manufacture of polyurethane plastics, particularly as the cross-linking component in thermally cross-linkable two-component polyurethane powder coating compositions.
Patent CA-2166969-A1 (CA)
Inventor: DILLMAN STEVEN HOWARD
IPC: C08L63/00
Filed: 1994-07-11
Abstract: L'invention concerne un mélange de polymères compatibles comprenant une résine époxy aromatique durcissable et un polymère de polydiènes époxydés, ainsi qu'un agent de durcissement à l'anhydride ou à l'acide polycarboxylique. L'invention se rapporte également à des compositions adhésives structurales contenant lesdits mélanges de polymères compatibles.
Patent CA-2167964-A1 (CA)
Inventor: ERNST VOLKER
IPC: F02M37/22
Filed: 1996-01-24
Abstract: A fluid filter, particularly for cleaning lubricating oil for internal-combustion engines of motor vehicles, which includes a filter housing 10 with a screw cap 11 and an annular filter element 12 inserted into the filter housing 10.  The filter element 12 is pushed onto a supporting tube 15, which in turn is locked to the cap 11 or the bottom of the filter housing 10.  Arranged on the cap or on the bottom are detent tongues 18 which engage with detent tongues 20 of the supporting tube 15.  Guiding surfaces 21 are provided for the detent tongues of at least one element.
Patent CA-2168821-A1 (CA)
Title: Process for stabilizing a polymer with a free and stable radical
Inventor: NICOL PASCAL
IPC: C08F279/00
Filed: 1996-02-05
Abstract: A compsn. comprising a vinylaromatic polymer and a rubber is prepd. by polymerisation in presence of a vinylaromatic monomer, a rubber and a stable free radical.
Patent CA-2169935-A1 (CA)
Title: Sonar system for current meter and doppler log
Inventor: PERENNES MARC
IPC: G01S15/60
Filed: 1994-08-19
Abstract: The invention relates to the emission antennas of Doppler logs and current meters.      It consists in distributing the transducers (701) of such an antenna over a circular plane base.      The polarities, phases and sequence of feeding these transducers with two distinct frequencies F1 and F2 make it possible to obtain four emission lobes inclined by 30° foreward, aftward, to port and to starboard.      Appropriate summation of the reception signals makes it possible to define two fore/aft and port/starboard reception lobes in which the echoes are distinguished through the frequency.      It makes it possible to determine the speed of the carrier boat independently of the speed of propagation of sound in the water. Moreover, the emission base is plane is substantially smaller than an ordinary base comprising four groups of inclined transducers.
Patent CA-2170525-A1 (CA)
Inventor: LEIH GORGE
IPC: H04W48/18
Filed: 1994-08-31
Abstract: Système mobile de communications comportant une station mobile (1) et un domaine de communications (A) comprenant au moins une station de base et recouvrant, au moins partiellement, un autre domaine de communication (B) dans une aire donnée (C) d'où il résulte que, dans ladite aire (C), la station mobile (1) dispose de plusieurs domaines de communication (A, B). Le système est aménagé por sélectionner, sur la base d'une liste de préférences, l'un des domaines de communication disponibles. Selon cette invention, le système assure plusieurs services, une liste séparée de préférences étant fournie à chaque usager pour chacun des services offerts. La sélection, qui se fait de préférence automatiquement, est l'objet de contrôles périodiques.
Patent CA-2171778-A1 (CA)
Title: Method and apparatus for adaptive filtering
Inventor: GEIGEL ALFRED ANTONIO
IPC: H04B3/04
Filed: 1996-03-14
Abstract: A finite impulse response (FIR) filter characterization is performed using a modified least means squares approach that updates values of FIR filter taps as groups of taps, periodically.  For the taps updated for a current input signal sample, future convolution values for future input signal samples are computed and also a partial estimate of the signal response is computed.  The expected response is then computed by summing the partial estimate signal response and other partial estimates of the signal response which are computed from future convolution, missed tap update convolution and normalizes error signal values which have been previously computed at past input signal samples and stored in memory.
Patent CA-2172314-A1 (CA)
Title: Process for improving the mutual compatibility of polymers
Inventor: VIDEAU DIDIER
IPC: C08L23/04
Filed: 1996-03-21
Abstract: The  subject  of  the  invention  is  a process  for improving the  mutual  compatibility  of  natural  and/or synthetic polymers,  by the use of cyclodextrin in the polymer mixture.      The cyclodextrin may represent in particular from 0.5 to 20% by weight of the polymer mixture.      This mixture advantageously consists of a starch, in particular a plasticized starch, and a synthetic polymer such as a polyethylene, a polypropylene, a polystyrene, a PVC, a PVOH or polycaprolactone.      The cyclodextrin is advantageously provided in the form of a composition containing one of the constituent polymers of the mixture (for example starch), a plasticizer (for example a polyol), a nucleation agent and/or a standard compatibilizing agent.
Patent CA-2174028-A1 (CA)
Title: Method of and device for measuring the kerr non linearity coefficient in a single mode optical fibre
Inventor: ARTIGLIA MASSIMO
IPC: G01M11/02
Filed: 1996-04-12
Abstract: A train of rectangular pulses is sent into a fibre (5), which pulses have such a wavelength that fibre (5) operates under anomalous dispersion conditions, such a peak power as to cause modulation instability in the fibre and such a ratio between duration and repetition period that the average power is lower than the threshold at which stimulated Brillouin effect takes place. The maximum value of instability gain is measured in the spectrum of the pulses exiting the fibre and the kerr non linearity coefficient is is obtained from the maximum measured value of modulation instability gain by minimising the error, in the range of power values used for the measurement, with respect to a theoretical curve expressing such maximum gain as a function of the peak power. The device to realise the method is also provided.
Patent CA-2174264-A1 (CA)
Title: Metal scrap shredder
Inventor: DUDLEY RUSSELL D
IPC: B23Q11/10
Filed: 1996-04-16
Abstract: A shredder is provided for shredding agglomerated metal scrap from a machining process. The shredder includes a rotatable shredding tool mounted on a drive shaft that is rotated using conventional power transmission devices. The axis of the shredder drive shaft is approximately in-line with the drive shaft of a feed device that delivers metal scrap to be shredded to the rotating shredding tool. The shredding tool is rotated so that the teeth of the shredding tool tear against the leading edge of the agglomerated metal scrap. Optionally, fixed hooks are located on one or both of the feed device and the shredder housing for engaging the agglomerated metal scrap. Where fixed hooks oranchors are used, the rotating tool engages the agglomerated metal scrap and spins the metal scrap against the fixed hooks, thus causing further shredding to occur. The shredding tool may be spring-loaded for axial movement in such a way as to allow it to move away from an object that causes it to jam. Also, alternatively, the shredding tool is reversibly rotatable, and the shredding tool teeth are oriented so that the shredding tool kicks away and unjams when reversibly rotated. In one form, the teeth on the shredding tool are flexible finger-like members that extends axially toward and engage the metal scrap as the scrap is output from the feed device.
Patent CA-2176412-A1 (CA)
Title: Rotary tabletting press
Inventor: WILSON DAVID HENRY
IPC: B30B15/30
Filed: 1996-05-13
Abstract: A rotary tabletting press for the production of tablets comprising a turret driven rotatably and carrying with it a die plate accommodating a plurality of die cavities each comprising a through bore having upper and lower openings. Respective pairs of upper and lower punches to work in each die cavity and wherein tabletting material which enters the die cavities by the upper opening is enclosed within a chamber, disposed above the die plate. Means to control closing of the die cavities comprises a fixed scraper blade disposed adjacent the upper surface of the die plate and intercepting the path of the die cavities. The turret comprises axially separable upper and lower parts and the chamber is defined between the upper and lower parts.     Also described is a die clamping system whereby a plurality of dies accommodating a respective die cavity are simultaneously located in position. A common die clamping element is used which is located axially when the upper housing part is in its operating position. A shouldered die is employed.
Patent CA-2176907-A1 (CA)
Title: Endoscope pressure equalization system and method
Inventor: FELDMAN LESLIE A
IPC: F16K17/196
Filed: 1996-05-17
Abstract: A pressure equalization device connects to a port on an endoscope and equalizes the pressure within the endoscope to an environment thereabout. An outlet check valve allows flow out of the port and blocks flow into the port. A filter may be provided for preventing known chemical agents from entering the port. If the agent is hydrogen peroxide, the filter preferably comprises a catalyst, such as copper wool, for decomposing the hydrogen peroxide into water and oxygen. An inlet check valve may also be provided to communicate with the endoscope port and allow flow into the port in response to a downstream pressure gradient exceeding a predetermined value.
Patent CA-2178641-A1 (CA)
Title: Automated lead assay
Inventor: WONG MARTIN
IPC: G01N21/78
Filed: 1994-12-19
Abstract: Detection of lead present in a sample, comprising the steps of: (a) adding a lead recovery agent to an assay solution containing lead from the sample, (b) adding to the assay solution a disulfide enzyme which is inhibited in the presence of lead; and (e) correlating the activity of the disulfide enzyme to the amount of lead in the sample. The lead recovery agent, preferably a lead chelating agent, enhances the sensitivity and accuracy of the assay such that the assay can be readily automated for detection of lead in whole blood using commercially available automation systems.
Patent CA-2180455-A1 (CA)
Inventor: ASH STEPHEN R
IPC: A61M60/546
Filed: 1995-01-11
Abstract: Cette invention concerne des dispositifs et des procédés relatifs au traitement extracoporel du sang qui permettent d'effectuer efficacement la plasmafiltration ou l'hémofiltration. Ce dispositif comprend un dispositif membranaire à fibres creuses (HFD) qui est connecté en série avec un dialyseur à plaques parallèles (PPD). La suspension de sorbant contenue dans une poche (101) passe d'abord par l'entrée (102) pour le sorbant du PPD, sort par la sortie (103) pour le sorbant, est envoyée dans un réservoir d'accumulation (104), est expulsée de ce réservoir d'accumulation (104) puis passe par un clapet de non-retour (105) en réaction à la pression positive et négative alternée appliquée audit réservoir d'accumulation (104). La suspension de sorbant passe ensuite par l'entrée (106) du HFD et à travers la chambre externe du HFD, ceci ayant pour effet de remuer et de mélanger la suspension de sorbant et de la mettre en contact avec les surfaces externes des fibres creuses (107) du HFD. La suspension de sorbant sort du HFD par la sortie (108) puis traverse un détecteur (109) de fuites de sang et revient ensuite dans la poche (101) contenant le sorbant.
Patent CA-2180515-A1 (CA)
Inventor: BURLESON JOHN D
IPC: E21B43/1185
Filed: 1996-07-04
Abstract: A system is provided for selectively perforating multiple zones in a well either simultaneously,  or in series,  having isolation barriers, or packers, located between the perforating multiple zones, without moving the system with respect to the well.   The system includes a tubing string which carries at least a first and a second perforating gun.   At least a first and a second pressure actuated firing head are associated with the first and second perforating guns, respectively.  A first and second packer for isolating the perforating guns from each other.  A source of actuating fluid pressure for the firing head is provided, which may be the bore of the tubing string.          A first selective communication device is provided for isolating the second firing head from the source of actuating fluid pressure until after  the  first  perforating  gun  has  been  fired,  and  for  then communicating the second firing head with the source of actuating fluid pressure in response to firing of the first perforating gun.
Patent CA-2181053-A1 (CA)
Title: Wrap-around carrier with bottle neck retainer tabs
Inventor: SUTHERLAND ROBERT L
IPC: B65D1/38
Filed: 1995-11-02
Abstract: A wrap-around carrier (10) for packaging necked bottles (B). Downwardly folded retaining flaps 134) are connected to the transverse edges of bottle neck openings (26) and engage opposite sides of an associated bottle neck to hold the bottle neck in place. Bottom retaining flaps (32) may also be provided at the heal cutouts (28) to hold the bottom portions of the bottles in place.
Patent CA-2182492-A1 (CA)
Inventor: THICTHENER EDWARD PHILIP
IPC: B29C70/42
Filed: 1994-12-01
Abstract: Elongate products are moulded in a die (27, 28 47) from fibre reinforced plastics by drawing a bundle of tows (23) through a bath (16) of resin (17) and between two portions of an open die (27, 28, 47), which is closed under high pressure are heated to cure the resin. The die is opened, and the product is then partly withdrawn lengthwise, to draw further wetted tows (23) between the die portions, and the die is again closed, clamping the tail end of the already cured product which still projects into the die space, or clamping blocks (41) at its downstream end. Cold clamping blocks (24) also clamp the tows (23) at the die upstream end. The products are subsequently severed externally of the die by cutter wheels (44).
Patent CA-2186932-A1 (CA)
Title: Method and Apparatus for Fastening
Inventor: VOGEL MARK A
IPC: F16L3/223
Filed: 1996-10-01
Abstract: A method and apparatus for a retaining a body member with a load member fastened to a mounting surface by a support member.  The load member includes a contact surface engageable by the support member, and the body memberincludes a throughhole for receiving at least a portion of the load member.  A breakable flash connection couples the load member to the body member so that atleast a portion of the load member is disposed in the throughhole of the body member.  The flash connection is breakable upon moving the load member relative to the body member with the support member in contact with the contact surface of the load member, wherein the load member retains the body member and isolates the body member from stress imparted by the support member to reduce deformation of the body member.  The body member may be a part of a panel or be configured withclips for retaining other articles.  The apparatus preferably is a unitary member formed of a molded plastic material.
Patent CA-2187498-A1 (CA)
Title: Wide iron-based amorphous alloy thin strip, and method of making the same
Inventor: KOGIKU FUMIO
IPC: H01F1/153
Filed: 1996-10-09
Abstract: A wide amorphous alloy thin strip having a width of 70 mm or above and useful as an iron core of electric power transformers, composed of Fe-Si-B-C amorphous alloy.      Dispersion of an amorphous structure in the width direction is prevented and deterioration of the strip properties is suppressed by adding Mn or by casting in an atmosphere containing a carbonic acid gas in an amount of about 40 vol% or more to thereby control strip surface roughness to a center line average surface roughness of about 0.7 µm or less.
Patent CA-2187548-A1 (CA)
Title: Chemical solution filling system
Inventor: DECKER JAMES D
IPC: B67D7/34
Filed: 1996-10-09
Abstract: The present invention is a method for dispensing and handling chemical solutions by using a dispensing station.  The dispensing station includes a cabinet having a fill compartment and at least one concentrate bottle compartment.   The cabinet's top wall has a funnel for supporting  a  dilution  gun.    The  gun  is  in  fluid communication with a water source and has a removable insert containing an aspirator.  The insert's outlet tube fits within the cabinet's funnel.  A pickup tube extends from the concentrated chemical solution to the gun.  A use container such as a spray bottle is sized and configured to fit within the fill compartment.   In the preferred embodiment, the concentrate container has a plurality of grooves which are sized and configured to correspond with a plurality of ribs within the concentrate compartments. Additionally, the concentrate compartment's lower portion forms a track to accommodate a bottom portion of the concentrate container.
Patent CA-2187875-A1 (CA)
Title: Components for and methods of operation of bag house filter/cartridge cleaning systems
Inventor: ELLIOTT JEFF
IPC: A47L9/14
Filed: 1995-03-27
Abstract: The present invention relates to a method of controlling a filter bag and cartridge cleaner cleaning system, whereby the opening of valves to allow passage of cleaning air into the filter bags or cartridges is dependent upon the attainment of a predetermined pressure existing in the header rather than the normal on/off timer control. There is also disclosed a control panel, components and a flow control device for use with a cleaning system.
Patent CA-2193646-A1 (CA)
Title: Resistive gas sensing, especially for detection of ozone
Inventor: WILLIAMS DAVID EDWARD
IPC: G01N27/12
Filed: 1995-06-20
Abstract: A resistive gas sensor having a WO3 sensing element is especially useful for detection of low concen-trations (1 ppm or less) of ozone in air. The WO3 element is a porous layer (82) with 30 - 60 % porosity and less than 50 micrometre thick, having in general a sufficiently open porous microstructure and high sur-face area to give a satisfactory re-sponse to ozone. The sensor is used for detection of low ozone concen-trations at s working temperature in the range from ambient to 600°C.
Patent CA-2196714-A1 (CA)
Inventor: MONTE THOMAS D
IPC: G01R15/24
Filed: 1997-02-04
Abstract: An optical fiber which modifies the optical signals propagated through the fiberand has refractive properties which change in response to electromagnetic energy. The outer surface of the fiber forms at least one groove extending along a selected length of the fiber for receiving an electrode, which would apply an electrical voltage to the fiber resulting in a change of the refractive properties of the fiber.
Patent CA-2198074-A1 (CA)
Title: Vinylidene fluoride polymer-based binder solution and electrode-forming composition
Inventor: NAGAI AISAKU
IPC: H01M4/139
Filed: 1997-02-20
Abstract: A binder solution for providing an electrode suitable for use in non-aqueous-type electrochemical devices, such as a battery and an electric double layer capacitor, is formed by dissolving a vinylidene fluoride polymer having an inherent viscosity (and thus a polymerization degree) higher than a conventional level in an organic solvent.  An electrode-forming composition is formed by dispersing powdery electrode material in the binder solution and is applied onto an electroconductive substrate while avoiding the gelation of the polymer, followed by drying, to form a composite electrode layer, which retains the powdery electrode material at a smaller amount of vinylidene fluoride polymer than a conventional level and is well resistant to a non-aqueous electrolytic solution.