baber/WOPTO huggingface dataset:
Patent CA-2190622-A1 (CA)
Title: Method and apparatus for analysing uterine activity
Inventor: GARFIELD ROBERT E
IPC: A61B5/0488
Filed: 1995-05-16
Abstract: A method and apparatus for recording and analyzing uterine electrical and mechanical activity from the abdominal surface (16). Electrodes (17) are applied to the abdominal surface (16) of a patient, and electromyographic signals produced by the electrodes are digitized, stored and analyzed to assess uterine electrical activity. Assessment of the function of other smooth muscle organs, for example the bladder and lower gastrointestinal tract is also contemplated.
Patent CA-2190842-A1 (CA)
Title: Device for the adequate alteration of the longitudinal bow of a ski
Inventor: GOETZFRIED PETER
IPC: A63C9/00
Filed: 1995-02-25
Abstract: Skis are manufactured so as to have a convex longitudinal curvature in the unloaded state. This ensures that the ski has good contact with the snow, keeps to the track and does not chatter during skiing, but impedes turning the skis and skiing through narrow curves. However, by securing two Z-shaped rigid levers (10) with a power arm (11) and a load arm (12) to a ski (1) such that the power arms (11) are positioned under the heel or toe of a ski boot and by variously distributing the weight (Gh, Gv) on the power arms (11), the tail (3) and/or tip (2) of the ski are/is lifted and the ski (1) obtains a concave longitudinal curvature.
Patent CA-2192885-A1 (CA)
Inventor: CHAUVETTE GAETAN
IPC: B32B5/02
Filed: 1996-12-13
Abstract: A liquid-absorbent article having a high absorption capacity and a short fluid penetration time.  The liquid-absorbent  article  comprises  sphagnum  moss  material containing an effective amount of cross-linked cellulosic fibers.  The liquid-absorbent article is well-suited for use as an absorbent component of a disposable absorbent product,  such  as  a  sanitary  napkin,  a  diaper,  an incontinence pad,  an adult brief,  a wound dressing,  a nursing  pad, a  tampon  pledget,  or  as  desiccant  for packaging materials to keep goods dry during shipping or storage.  The invention also extends to a novel method for manufacturing the liquid-absorbent article.
Patent CA-2194801-A1 (CA)
Title: Separator and method for separating components of pressurized drilling fluid returns
Inventor: FARION RAYMOND RICHARD
IPC: E21B43/38
Filed: 1997-01-10
Abstract: The separator comprises a vertical cylindrical pressure vessel having elliptical top and bottom heads. A mechanical means, referred to as a vortex tube cluster of vertical tubes, is mounted in the upper section of the vessel chamber, spaced above the bottom head to define a lower chamber section for fluid and solids separation. Pressurized drilling fluid returns are directed tangentially into the vortex tubes and a subsequent centrifugal action is generated. Contained gas separates and forms a gas vortex which exits upwardly from the vortex tubes and vessel top. The liquids and solids discharge into the vessel lower chamber section where solids settle by gravity to the bottom. The solids are withdrawn from the base of the vessel by a slurry pump. The oil and water components of the fluid layer also separate by gravity and are individually removed from the vessel.
Patent CA-2195601-A1 (CA)
Inventor: NEWPORT COLIN
IPC: B62D1/19
Filed: 1997-01-21
Abstract: An energy absorbing steering column comprises a billowed collapsible portion. The billowed collapsible portion allows the steering column to be collapsible and absorb energy upon receiving an impact load at or greater than a predetermined impact force. The collapsible portion may be "billowed in" (diameter of collapsible portion less than that of the steering column) or "billowed out" (diameter of collapsible portion greater than that of the steering column). The billowed collapsible portion has a load bearing edge and a deformable edge. The load bearing edge is capable of withstanding a force greater than a predetermined impact force and the deformable edge is capable of initiating deformation of the deformation edge at the predetermined impact force. The present energy absorbing steering column obviates the need a steering column comprising telescoping column jackets and a separate energy absorption device attached to the steering column.
Patent CA-2197050-A1 (CA)
Title: Anti-cancer agents derived from fertilized incubated shell eggs
Inventor: SHULMAN MORTON P
IPC: A61K35/57
Filed: 1997-02-07
Abstract: Fertilized incubated shell eggs, e.g. avian eggs and in particular hens eggs, may be used to produce a composition which is useful in the prevention and treatment of cancer. The compositions are substantially non-toxic and may be used in conjunction with conventional cancer treatments such as radiation and chemotherapy. Preferably, the compositions of the present invention contain fertilized hens' eggs which have been incubated for about 8 to 10 days. The compositions may be administered into the gastrointestinal tract of a patient in a variety of forms or may be administered by injection.
Patent CA-2197068-A1 (CA)
Inventor: MCNEIL JOHN A
IPC: G01N35/02
Filed: 1995-06-30
Abstract: An automated detection system includes a robotic fluid-handling system for performing a plurality of assays; a detection system for imaging the assays as they are performed; and a computer control, data acquisition, and data analysis system for controlling the operation of the fluid-handling and detection system and for collecting and analyzing imaging data. The automated detection system comprises a pipettor for simultaneously distributing a predetermined amount of a liquid and a signal-generating element to each of the plurality of wells; an excitation source for simultaneously exposing the wells to excitation radiation; a detector for simultaneously detecting signal emitted from each of the wells over a period of time comprising a single imager for optically imaging the plurality of wells simultaneously; and computerized controller for simultaneously coordinating the pipettor, the excitation source, and the detector. Further, a method for performing simultaneous assays includes the steps of simultaneously distributing a predetermined amount of a liquid solution to each of a plurality of samples, simultaneously exposing the wells to excitation radiation, simultaneously detecting signals emitted from the wells using a detector comprising a single imaging means, and simultaneously controlling and coordinating the distribution, excitation, and detection using a computerized controller.
Patent CA-2198836-A1 (CA)
Title: Optical Wavelength Multiplexer/Demultiplexer
Inventor: AKIBA KENJI
IPC: H04B10/00
Filed: 1997-02-28
Abstract: An optical wavelength multiplexer/demultiplexer has an input channel waveguide for receiving a wavelength division multiplexed signal, a first slab waveguide having an input boundary and a fan-shaped output boundary, an arrayed-waveguide grating comprising N channel waveguides, which provides a predetermined waveguide length difference from each other, a second slab waveguide having a fan-shaped input boundary and an output boundary, N output channel waveguides for each receiving a demultiplexed optical signals having a desired wavelength .lambda. 1, .lambda. 2,...or .lambda. n. The channel waveguides of the arrayed-waveguide grating are arranged along the fan-shaped output boundary of the first slab waveguide such that an angle .theta. between the central axis of "i"th (i = 1, 2,  ... N) channel waveguide and the symmetric axis of the fan-shaped output boundary of the first slab waveguide 4 satisfies the certain equations.
Patent CA-2198915-A1 (CA)
Title: Femoral and tibial resection method and apparatus
Inventor: GOLDSTEIN DAVID B
IPC: A61B17/56
Filed: 1995-09-01
Abstract: A femur and tibia resecting apparatus is provided for use in the preparation of a human distal femur and proximal tibia for the implantation of a prosthesis. The femur resecting apparatus includes a positioning apparatus (10) and a pattern device (60). The positioning apparatus (10) includes a positioning block (15) for attachment to a femur, an alignment block (32) having an intramedullary rod (42) extending into the femur, and a rotational adjustment device (50) for attachment of the pattern device (60) to the positioning apparatus (10). The pattern device (60) includes an individual or pair of mediolaterally located plates having a cutting path (65) described therethrough for guiding a cutting tool (90). The tibia resecting apparatus includes an ankle clamp (150), an alignment rod (160), a fixation head (180), cutting guide clamps (120) having cutting guide slots (122) therein, and a milling bit (155). The method includes using the femur resecting apparatus and the tibia resecting apparatus to prepare the femur and tibia for the prosthesis.
Patent CA-2200052-A1 (CA)
Title: Bone-forming graft
Inventor: YOKOTA SHOJI
IPC: A61L27/54
Filed: 1995-09-28
Abstract: An osteoplastic graft comprising a bone inducer supported on a composite porous body comprising a porous structure of a bioabsorbable hydrophilic material and a surface layer of a bioabsorbable polymeric material. Preferably, the hydrophilic material comprises at least one member selected from the group consisting of gelatin, hyaluronic acid and derivatives thereof, collagen and derivatives thereof, chitosan and derivatives thereof, and triethanolammonium alginate, while the polymeric material comprises at least one member selected from the group consisting of polylactic acid, polylactic acid-polyglycolic acid copolymer, and poly¢bis(p-carboxyphenoxy)propane! anhydride-sebacid acid copolymer. As the graft is excellent in moldability and operability and has an internal structure suitable for in vivo bone neogenesis, bone grafting occurs not only at the periphery of the graft but also within the graft.
Patent CA-2200576-A1 (CA)
Title: Flameproof, glass fibre-reinforced polyamide resin compound with melamine or melem phosphoric acid reaction products as flame retardants
Inventor: HORACEK HEINRICH
IPC: C08L77/00
Filed: 1995-09-08
Abstract: Flame resistant glass fiber-reinforced polyamide resin composition with 10 to 40 $ by weight of melamine-or melem-phosphoric acid reaction products or mixtures thereof as flame retardants and with 10 to 60 % by weight of glass fibers.
Patent CA-2201530-A1 (CA)
Inventor: WAGNER WOLFGANG
IPC: A61M5/42
Filed: 1997-04-02
Abstract: A device and a device related method for a control of metabolism on a living being or, in a more strict sense, a puncture device fitted with arrangements, which allow the cutting point to move abruptly after its skin penetration for a preadjustable, short stretch and whereby the blood, which flows out because the vessel destruction, is directly led to the test field of a preferably directly joined measuring instrument, preferably for glucose, which occurs preferably inside of a suction cup. Different puncture grips and various types of devices and variation of their application are described.
Patent CA-2202502-A1 (CA)
Title: Cartridge and roller for a consumable ribbon, receiving apparatus, and rotational roller coupling method
Inventor: LAURENT JEAN-MARIE
IPC: B41J17/32
Filed: 1995-10-12
Abstract: A roller (4) for a wound ribbon such as a printer ink ribbon (8) may be rotationally coupled by pushing the projections or teeth (57b, 57c) of a wheel (53) on a drive spindle (3) into a soft material (33) defining part of the bore (29) in the roller (4). A spring blade (51) prevents the wheel from freely rotating and provides a snap-in feeling. The roller may be part of a cartridge having members for locking the rollers in a position in which the ribbon tension is optimised. The roller and spindle may be coupled in any relative angular position, and the rollers may thus be locked. Release is automatic when the cartridge is fully engaged. The ribbon may therefore be more readily installed in an optimised manner.
Patent CA-2204411-A1 (CA)
Inventor: BROWN PETER S
IPC: A61F2/82
Filed: 1995-11-08
Abstract: This invention provides a graft delivery system and methods for its use comprising a prosthetic graft (12) secured to an expandable anchoring member, such as a stent (13), by a butt-joint attachment means (21) to minimize the system's profile. The delivery system employs a catheter (11) with a relatively small diameter shaft (14) for flexibility and a relatively large diameter (14) delivery base (17) for supporting expansion of the anchoring member. The butt-joint attachment means comprises any means suitable to secure the graft to the anchoring member when deployed within the patient's vasculature and allows the anchoring member and graft to expand during deployment.  In a preferred embodiment, the delivery system is configured so that the expansion of the anchoring member pulls the distal end of the graft over the proximal end of the anchoring member and the final expansion of the anchoring member seals the distal end of the graft (12) between the proximal end of the anchoring member and the vessel (20). One preferred method of use is to deploy a second anchoring member (31) coaxially within the already deployed first anchoring member and graft assembly, overlapping at least the distal end of the graft in order to further secure the graft and minimize flow by.
Patent CA-2206128-A1 (CA)
Title: Doctoring ink cup
Inventor: WILSON EDWARD H JR
IPC: B41F3/38
Filed: 1995-12-14
Abstract: A doctoring ink cup for containing and applying ink to an engraved image (18) on a printing plate (16) includes a flexible doctoring cup (12) drawn from a sheet of spring steel. The doctoring cup (12) has rim forming a doctoring edge (12a) for wiping excess ink from the printing plate (16). A cup shaped stiffening member (10) is bonded to the doctoring cup for stiffening the doctoring cup.
Patent CA-2207290-A1 (CA)
Title: Electrodes for lithium ion batteries using polysiloxanes
Inventor: EGUCHI KATSUYA
IPC: H01M4/62
Filed: 1997-06-09
Abstract: There is disclosed herein a lithium ion battery electrode formed by the pyrolysis of a siloxane polymer of the formula (R1R2R3SiO1/2)w(R4R5SiO)x(R6SiO3/2)y(SiO4/2)z followed by introducing lithium ions.  In this formula, each R1, R2, R3, R4, R5 and R6 are independently selected from hydrogen atom or a hydrocarbon, w is in the range of 0 to 0.8, x is in the range of 0 to 0.9, y is in the range of 0 to 0.9, z is in the range of 0 to 1 and w + x + y + z = 1.
Patent CA-2207613-A1 (CA)
Inventor: FU JIAN-MIN
IPC: C07D267/20
Filed: 1995-12-08
Abstract: Described herein are 5-HT2 receptor-selective compounds of formula (I), wherein: A and B are independently selected, optionally substituted, saturated or unsaturated 5- or 6-membered, homo- or heterocyclic rings; X1 is selected from O, S, SO, SO2, C=O, CH2, CH-OH, CH-N(C1-4alkyl)2, C=CHCl, C=CHCN, NH, NC1-4alkyl and N-acetyl; X2--- is selected from N =, CH2-, CH = and C(O)-; R1 is C1-6alkyl optionally substituted with a substituent selected from OH, halo, C1-4alkyl and C1-4alkoxy; and R2, R3 and R4 are independently selected from H and R1; and acid addition salts, solvates and hydrates thereof. Their use as ligands for serotonin 5-HT2 receptor identification and in a drug screening program, and as pharmaceuticals to treat indications in which the 5-HT2 receptor is implicated, such as hypertension, thrombosis, migraine, vasospasm, ischemia, depression, anxiety, schizophrenia, sleep disorders and appetite disorders is also described.
Patent CA-2207701-A1 (CA)
Inventor: BOLLENS LOUIS
IPC: C25D5/54
Filed: 1997-06-13
Abstract: A metal-coated film can be produced continuously from a non-conducting film by successive electroless and galvanic metallization in such a way that a film of this kind is subjected, in a continuous "roll-to-roll" process, to the following operations: a) applying a metallizable primer, b) drying the applied primer, c) conditioning the applied primer, d) optionally activating the applied primer, e) treatment with an electroless chemical metallizing bath, f) optional treatment with a first rinsing liquid, g) treatment with a galvanic metallizing bath, h) treatment with a second rinsing liquid, and i) optional heat treatment of the metallized film.
Patent CA-2208085-A1 (CA)
Inventor: ADACHI FUMIYUKI
IPC: H04W72/04
Filed: 1997-06-16
Abstract: A CDMA communication method capable of providing a multi-rate user with high quality transmission using a spreading sequence selected from sequences which consist of multilayer sequences arranged in a hierarchical tree structure. A higher level sequence C16(1) and its inverted sequence C16(1) are included in its lower level sequences {C32(1), C32(2)} and {C64(1), C64(2), C64(3), C64(4)}, for example, and a sequence from a higher level is selected to transmit a higher rate data: The C16(1) is used to transmit data whose peak rate is twice the peak rate of the data transmitted using its lower level sequences {C32(1), C32(2)}, and four times (= 2 2) that of the data transmitted using the sequences {C64(1), C64(2), C64(3), C64(4)}. The C16(1), however, cannot be selected if any one of its lower level sequences {C32(1), C32(2)} and {C64(1), C64(2), C64(3), C64(4)} are already being used. This makes it possible for all the spreading sequences of simultaneous multi-rate users to be orthogonal at any transmission rate.
Patent CA-2208362-A1 (CA)
Title: 1-substituted-5-thiomethylthiocyanato-1h-tetrazoles, compositions containing them and their use as antimicrobial and marine antifouling agents
Inventor: ROMER DUANE R
IPC: C07D257/04
Filed: 1995-10-10
Abstract: Disclosed are substituted-5-thiomethylthiocyanato-1H-tetrazole compounds corresponding to formula (I) wherein R represents a C1-C6 straight or branched chain alkyl radical, a C3-C6 cycloalkyl or a phenyl radical of formula (II) wherein each X independently represents hydrogen, halo, a C1-C6 straight or branched chain alkyl radical, a C3-C6 cycloalkyl radical, a C1-C6 straight or branched chain alkoxy radical, a C3-C6 cycloalkoxy radical, cyano or nitro and n is 0-5. These compounds have been found to exhibit antimicrobial amd marine antifouling activity in industrial and commercial applications, and compositions containing these compounds are so employed.
Patent CA-2210199-A1 (CA)
Title: Method and apparatus for the generation of non-linear confusion data
Inventor: BARBIR ABDULKADER OMAR
IPC: H04L9/12
Filed: 1997-07-11
Abstract: A method and apparatus for the generation of non-linear confusion data relates to the process of generating non-linear confusion data that is used to securely store plaintext data on a storage medium or transmit data over a communication medium.    The method and apparatus  develops  a non-linear confusion data generator (CDG) that could be used in a system that performs data encryption and data decryption.  The design of the CDG aims towards minimizing the major drawback of the XOR function combiner, whereby the CDG generates random data stream that is difficult to cryptoanalyze.   The output bit stream from the CDG is then used with the XOR function combiner to generate the ciphertext from the plaintext.
Patent CA-2213259-A1 (CA)
Title: Multiplex addressing of ferroelectric liquid crystal displays
Inventor: HUGHES JONATHAN RENNIE
IPC: G09G3/36
Filed: 1996-12-12
Abstract: A ferroelectric liquid crystal display comprises a layer of ferroelectric liquid crystal material contained between two cell walls, surface treated to align the material in a tilted layer. The walls carry e.g. row and column electrodes forming an x,y matrix of addressable elements or pixels. Multiplex addressing voltages are provided by driver circuits. An improved addressing is obtained by varying the addressing voltage applied during switching of a pixel to maximise torque applied on liquid crystal molecules. Addressing voltages are from two data waveforms and one strobe waveform; the data waveforms have three or more time slots per period forming a line address time, two or more voltage levels, dc balance, and equivalent rms. values; the strobe waveform has two or more voltage levels (which may include a zero level). The strobe and data waveforms combine to provide switching and non-switching resultant waveforms that form an addressing voltage at each pixel. The switching resultant waveform has gradually increasing voltage levels throughout a line addressing time. The non-switching resultant waveform has a first voltage of opposite polarity to that of the later voltage levels which may include one or more levels of sufficiently large amplitude to inhibit switching.
Patent CA-2215032-A1 (CA)
Title: A method of optimal scaling of variables in a multivariable predictive controller utilizing range control
Inventor: LU ZHUXIN J
IPC: G05B13/02
Filed: 1996-04-01
Abstract: A process control system which includes at least one manipulated variable and at least one controlled variable, provides a method for robust control of a process. Predetermined constraints of the manipulated variables and the controlled variables, and the present values of the manipulated variables are obtained. A set of scale factors for the manipulated variables and the process variables are calculated. The controller (10) is initialized with the set of scale factors, the scale factors determining the relative importance of the manipulated variables and the process variables to the process. New values are calculated for the controlled variables for a predetermined number of points in the future, such that the values of the controlled variables are within the predetermined range thereby obtaining an optimal robustness of the resultant controller. The manipulated variables are also calculated to be within predetermined constraints, and the controlled variables to fall within a predetermined range when controllable. From a plurality of solutions, a most robust solution is selected. Then the manipulated variables are adjusted to cause the process control system to drive the values of the controlled variables to the calculated values.
Patent CA-2215295-A1 (CA)
Title: Sabot for a subcaliber projectile
Inventor: ROSSMANN RUDOLF
IPC: F42B14/06
Filed: 1997-09-11
Abstract: This sabot results in an optimal gas seal and reduction in the weight and the risk posed by the formation of metal splinters.  For this purpose, the sabot body (4) is completely enclosed by the sabot casing (3) which partly also encloses the rear of the pointed projectile (1).  The sabot body (4) has the shape of a one-part or multiple-part hollow body with circumferential grooves (5, 34), and an exterior diameter which is smaller than the diameter of the sabot casing.    (Fig. 1)
Patent CA-2219604-A1 (CA)
Title: Process for improving the abrasion resistance of zeolite moulded bodies
Inventor: KOSSEL ELKE
IPC: C01B39/02
Filed: 1997-10-29
Abstract: The abrasion resistance of zeolite moulded bodies is improved by spraying the zeolite moulded bodies with an aqueous silica sol solution and then optionally drying and calcining them.
Patent CA-2219891-A1 (CA)
Title: Methods and reagents for combined pcr amplification and hybridization probing assay
Inventor: MAYRAND PAUL E
IPC: C12Q1/68
Filed: 1996-04-05
Abstract: An oligonucleotide probe is disclosed, the probe including an oligonucleotide, a fluorescer molecule attached to a first end of the oligonucleotide and a quencher molecule attached to the opposite end of the oligonucleotide. The probe is rendered impervious to digestion by the 5'3' exonuclease activity of a polymerase and the 5'3' extension by a polymerase. The invention also includes methods for performing combined PCR amplification and hybridization probing, one such method including the steps of contacting a target nucleic acid sequence with PCR reagents and an oligonucleotide probe as described above, and subjecting these reagents to thermal cycling. One preferred refinement of the above method further includes the addition of a strand displacer to facilitate amplification. Additional similar combined PCR  hybridization methods are disclosed, such methods not requiring probes having their 5' ends protected, wherein (i) the polymerase lacks 5'3' exonuclease activity, (ii) a 5'3' exonuclease inhibitor is included, and (iii) an exonuclease deactivation step is performed.