baber/WOPTO huggingface dataset:
Patent CA-2158990-A1 (CA)
Title: Methods and Fluids for Removal of Contaminants from Surfaces
Inventor: BORAH RONALD E
IPC: C11D3/20
Filed: 1994-04-04
Abstract: A cleaning process and water-based cleaning compositions effective for the removal of radionuclides, polychlorinated biphenyls, pesticides, herbicides, and heavy metals from surfaces of all types, more especially porous surfaces, surfaces that contain irregularities and microspcopic voids into which contaminants may migrate and lodge thereby creating a substrate below the surface that must also be cleaned, and particulate surfaces. The cleaning blends and processes remove contaminants from porous and irregular surfaces to such a depth below the surface and into the substrate, and to such an extent, that the cleaned surface satisfies current regulations promulgated by the EPA and NRC relating to standards for decontamination. The process also allows sealing of cleaned surfaces, if desired, with an impermeable coating of a synthetic polymeric composition in order to retard subsequent migration of any residual contaminants to the surface.
Patent CA-2159191-A1 (CA)
Inventor: FLEMMING ALAN JOHN ERNEST
IPC: C22F1/04
Filed: 1994-04-05
Abstract: Aluminium brazing alloy composition is (in wt%): Mn 0.7 - 1.5, Cu 0.5 - 1.0, Fe not more than 0.4, Si not more than 0.15, Mg up to 0.8, V and/or Cr up to 0.3, Ti up to 0.1, others up to 0.05 each, 0.15 total, balance Al of at least commercial purity. Improved properties include: post-brazed strength and sag resistance; corrosion resistance;  ability to withstand interannealing and some homogenisation.
Patent CA-2160179-A1 (CA)
Inventor: VAN HALTEREN JACOB
IPC: A23G3/12
Filed: 1995-10-10
Abstract: A mold displays multiple cavities with adapted rims for sealing of the resulting shells. The mold has cylindrical openings at the top of the shells for filling purposes. The mold is used to generate various gelatinous three-dimensional shapes.
Patent CA-2161799-A1 (CA)
Title: Beryllium-containing alloys of aluminum and investment casting of such alloys
Inventor: GRENSING FRITZ C
IPC: G11B5/48
Filed: 1995-02-22
Abstract: Disclosed is a practical aluminum-based alloy containing 1 to 99 weight percent beryllium and improved methods for the investment casting of net shape aluminum-beryllium alloy parts. The figure presents a current aluminum-beryllium phase diagram.
Patent CA-2162422-A1 (CA)
Title: Grader
Inventor: PETERSON DAVID
IPC: E02F3/76
Filed: 1995-11-08
Abstract: A grader for use in narrow passageways. The grader includes a body that supports a scarifying assembly and a plough assembly. The body is adapted to connect to the three point hitch of a tractor. The plough assembly has a main portion and a wing portion, the wing portion protruding from the side of the body and intersecting the main portion at an obtuse angle. The body has an inwardly tapered upper portion to facilitate clearance when said body is tilted adjacent to a wall. An opening is defined at the sides of the body to facilitate passage of from the wing portions to the centre portion.
Patent CA-2162805-A1 (CA)
Title: Method and apparatus for rehabilitating the subgrade supporting a ballast bed
Inventor: THEURER JOSEF
IPC: E01B27/08
Filed: 1995-11-14
Abstract: The subgrade supporting a ballast bed for a track is rehabilitated by (a) lifting the track off the ballast bed, removing an upper portion of the ballast from the ballast bed, comminuting the removed ballast to obtain gravel, storing the gravel, and laying the track on a remaining portion of the ballast bed, in a first stage, (b) lifting the track off the remaining ballast bed portion, removing the ballast of the remaining ballast bed portion until the subgrade is exposed, and laying the track on the exposed subgrade, in a second stage, and (c) lifting the track off the subgrade, discharging the stored gravel on the subgrade, planing and compacting the gravel on the subgrade until a protective layer for the subgrade is obtained, and laying the track on the protective subgrade layer, in a third stage.
Patent CA-2163433-A1 (CA)
Title: Multiparticulate pulsatile drug delivery system
Inventor: CHEN CHIH-MING
IPC: A61K9/22
Filed: 1993-06-03
Abstract: A unit dosage form of capsule or tablet composed of a large number of pellets made up of two or more populations of pellets/particles.  Each pellet containing a core containing the therapeutic drug and water soluble osmotic agent, which enclose a water-insoluble polymer.  The film coating of each population of pellets differs from the coating of every other population of pellets in a dosage form in the rate at which water passes through to the core and the rate at which drug diffuses out of the core.  The osmotic agent dissolves in the water causing the pellet to swell and regulating the rate of diffusion of drug into the environment of use.  As each population of pellets releases its drugs into the environment sequentially, the effect is to provide a series of pulsatile administrations of the drug from a single dosage form.
Patent CA-2166147-A1 (CA)
Inventor: ROLON NOEL
IPC: G01N33/49
Filed: 1995-12-27
Abstract: The invention provides for a  method  of  making more than one punchout from a single dried blood spot. The method comprising the steps  of  making a first punch  and sequentially  making at least a second punch in  the dried blood spot. The second punch  comprises  boundaries  which are at least partly outside of the boundaries of the first punch. The surface areas of the  first  punch  and  second punch  are together equivalent to the minimum surface area required for testing of the dried blood spot.
Patent CA-2167205-A1 (CA)
Inventor: HARRELSON GLEN RAY
IPC: B65D71/64
Filed: 1995-02-27
Abstract: L'invention concerne un carton (10) conçu comme un panier et ayant une poignée antivol. Le carton a une panneau externe (12) à poignée et un panneau interne (38) à poignée directement en dessous. Des panneaux intermédiaires (16) comportent des ouvertures (24) par lesquelles font saillie les parties supérieures des articles (B) et ils relient les panneaux latéraux (20) du carton (10) au panneau externe (12) à poignée et empêchent que l'on puisse enlever individuellement les articles (B) du carton (10). Lorsque les panneaux intermédiaires (16) et le panneau externe (12) à poignée sont enlevés le long de lignes (28) à déchirement facile, le panneau interne (38) à poignée est libéré et peut être utilisé pour porter le carton (10).
Patent CA-2168276-A1 (CA)
Title: Laser facial rejuvenation
Inventor: SLATKINE MICHAEL
IPC: A61B18/20
Filed: 1996-01-29
Abstract: A  method  and  apparatus  for  performing  facial rejuvenation are provided in which ablation of an area of skin is accomplished to the papillary dermis, providing effective permanent smoothness.
Patent CA-2172604-A1 (CA)
Title: Authentication system and method
Inventor: LIANG LOUIS H
IPC: G06K7/12
Filed: 1994-09-23
Abstract: A system for authentication of articles uses a multiplicity of discriminating variables (40) to characterize light detected (70) from the articles (30) after predetermined illumination (10, 20). Articles (30) are tested which have been marked with substances such as dye or ink that fluoresce in a region of the optical spectrum (70) when illuminated with light in another region of the spectrum (30) such as the ultraviolet region. The authentication system illuminates the articles with light (20) modulated at a frequency of more than about 50 kHz, and a secondary fluorescent light (70) returned from the articles (30) is synchronously detected. A programmable microcomputer (85) digitizes the synchronously detected signal and analyzes it to compare the signal with predetermined standard digital signals. The standard signals incorporate a number of discriminating features, for example the fluorescent light's wavelengths, amplitudes and time delays relative to the modulated illuminating light. The standard signals may also incorporate spatial distributions such as bar codes as discriminating features.
Patent CA-2176022-A1 (CA)
Title: Antiarrhythmic benzodiazepines
Inventor: BOCK MARK G
IPC: C07D487/04
Filed: 1994-11-21
Abstract: Imidazobenzo-(1,5)-diazepine derivatives with an amide or urea function in the 3-position are useful in the treatment of arrhythmia. The compounds have structural formulae (A) and (B).
Patent CA-2180422-A1 (CA)
Inventor: KAHR JOSEPH C
IPC: F16D65/06
Filed: 1996-07-03
Abstract: A bonded composition type railroad brake shoe is disclosed in which the keybridge cavity of the brake shoe backing plate is filled with composition brake lining material for reinforcement and dampening of the keybridge. An insert located in the keybridge cavity comprises a pair of spaced-apart ribs that are upturned from a base plate such that the insert partitions the keybridge cavity. The insert is bonded in place by the composition brake lining material, which is formed with a keyway by the insert. The insert further serves to reinforce the keybridge in conjunction with the composition brake lining material therein.
Patent CA-2180500-A1 (CA)
Inventor: FRY TED J
IPC: D03D13/00
Filed: 1996-07-04
Abstract: An all synthetic corrugator belt seam is disclosed for joining corrugator belt sections constructed of a multi-layer fabric wherein each of the ends of the fabric is separated by removing intermediate CMD and MD yarns to form separated upper and lower fabric  end portions  and  securing  a  seam  tape  between  the separated layers at each end of the belting.  The seam tape is sandwiched between the separated layers and completely enclosed therein when the layers and seam tape are secured together so that  interruption  of  the  otherwise  continuous  belting  is minimized.
Patent CA-2183555-A1 (CA)
Title: Reproduction and utilization of functional human tissue
Inventor: TANAGHO EMIL A
IPC: A61K35/34
Filed: 1995-01-24
Abstract: The present invention provides a method of growing smooth muscle cells in a host with the purpose of maintaining natural cellular function to reproduce lost or damaged smooth muscle tissue. In this method, smooth muscle cells are freed from isolated smooth muscle tissue, then cultured and injected into the host in combination with an extracellular matrix. The invention also provides a method of enriching the amount of smooth muscle cells in a mixture by differential adhesion.
Patent CA-2184892-A1 (CA)
Title: Cooled drilling sleeve
Inventor: FRIGG ROBERT
IPC: A61B17/32
Filed: 1995-01-06
Abstract: An osteosynthesis drilling sleeve is used especially for drilling, threading and inserting implants. It comprises an upper end (1) for inserting an implant or a surgical instrument and a lower end (2) to be set on the bone. A coolant accessory (3) is put in position in the vicinity of the upper end (1) to feed coolant to the drilling sleeve.
Patent CA-2188539-A1 (CA)
Title: Process and device for tracing an ultrasound field
Inventor: BICZ WIESLAW
IPC: G01H3/12
Filed: 1995-04-19
Abstract: The invention refers to a process and a deviee to scan an ultrasound field. The methods known up to now require a large number of transducers in order to be able to record the non-transmitted ultrasound waves from all directions. In accordance with this invention, the number of ultra-sound transducers is reduced to one or to very few by the waves coming from different directions being subjected to different measures to lengthen their paths.
Patent CA-2194654-A1 (CA)
Inventor: DEDERT RONALD J
IPC: H01H85/04
Filed: 1997-01-08
Abstract: A simplified method of manufacturing an electrothermal fuse includes the steps of screening conductive epoxy onto fuse link termination pads, placing a metal alloy fuse link into the conductive epoxy on the termination pads, curing the conductive epoxy, applying deoxidant, applying encapsulant, and curing the encapsulant. The resultant fuse of the preferred embodiment comprises a substrate, termination pads, conductive epoxy interconnects, a solder type fuse link, liquid deoxidant and encapsulant.
Patent CA-2196158-A1 (CA)
Inventor: FUJIUCHI HIROYUKI
IPC: G08B13/14
Filed: 1995-07-28
Abstract: La présente invention concerne un dispositif d'alarme antivol à adapter à un objet à protéger et qui permet de détecter les opérations préliminaire de vol en déclenchant une alarme. L'invention concerne également un récepteur radio convenant à ce dispositif. Les dispositif avertisseurs précédents présentaient l'inconvénient de pouvoir être mis hors fonction sous l'effet de chocs mécaniques brutaux. Selon la présente invention un substrat de circuit (6) d'un organe de sortie d'alarme (AO) placé à l'intérieur d'un boîtier (2) adapté à l'objet à protéger est maintenu par la première (2a) de deux parties de parois (2a, 2c) du boîtier (2) situées en vis-à-vis, et un premier type d'élément constitutif (FE) de l'organe de sortie d'alarme (AO) est maintenu par la seconde partie de paroi (2c). En outre, un élément à contact électrique (CE) placé sur le premier type d'élément constitutif (FE) est conçu de façon qu'il vienne en contact avec un premier type de contact (FC) présentant une surface de contact en regard de la seconde partie de paroi du substrat de circuit (6). Enfin, l'élément à contact électrique (CE) comporte un ressort à boudin pouvant de détendre en direction des deux parties de parois (2a, 2c), et se présentant dans un état selon lequel il est comprimé par opposition à son état de détente maximale. Ainsi, la connexion électrique reste maintenue même en cas de choc brutal.
Patent CA-2197510-A1 (CA)
Title: Ink jet catch pan structure
Inventor: BOWLING BRUCE A
IPC: B41J2/18
Filed: 1997-02-13
Abstract: An ink jet catch pan structure provides necessary functions to allow performance of diagnostic and maintenance work on a high speed printing system printhead.  The ink jet catch pan structure has at least one printhead.  The catch pan is mounted to the printhead, has an investment cast body, and is grounded. Ink flow is received from the printhead and returned to the printhead. An ink impact slope receives ink impact from the printhead, and has a non-mist generating geometry.  An ink collection cavity holds ink as it impacts the ink impact slope.  The catch pan follows the printhead.
Patent CA-2199815-A1 (CA)
Inventor: JELINEK CATHERINE W
IPC: H04N7/173
Filed: 1995-08-30
Abstract: A cable television system employs two-way communication between a headend (30) and at least one subscriber terminal (10). The two-way communication is provided by having separate frequency bands for each communication path. The frequency bands do not overlap and the higher frequency band is used for subscriber terminal to headend transmissions. A line amplifier (100) is provided that employs two diplex filters (110, 140) each connected to both a forward and reverse amplifier (120, 130). The high pass portions of the diplex filters (330, 340, 201) are formed from both lumped and distributed components.
Patent CA-2201290-A1 (CA)
Title: Packaging machine system for filling primary and secondary products into a container
Inventor: ANDERSSON SVEN ARNE
IPC: B65B3/32
Filed: 1995-09-11
Abstract: A fill system for use in a packaging machine is disclosed for filling a container with a primary and a secondary product. The fill system includes a primary pump system for pumping a predetermined amount of the primary product received at an inlet thereof to an outlet thereof. A primary fill pipe having an outlet overlying a container processing path along which the containers are filled and sealed by the packaging machine is connected to receive the predetermined amount of primary product from the outlet of the primary pump system. The container processing path lies generally perpendicular to the primary fill pipe. A nozzle is connected at the outlet of the fill pipe. The fill system further includes a secondary pump system for pumping a predetermined amount of the secondary product received at an inlet thereof to an outlet thereof. A secondary fill pipe is connected to receive the predetermined amount of secondary product from the outlet of the secondary pump means. The secondary fill pipe is concentrically disposed in the primary fill pipe and has an outlet that likewise overlies the container processing path. A valve mechanism is disposed, for example, concentrically within the secondary fill pipe and includes a sealing number positioned at the outlet of the secondary fill pipe. The sealing member is operable to control the flow of the secondary product from the secondary fill pipe. Operation of the fill system may be user controlled by a user interface and control system.
Patent CA-2207506-A1 (CA)
Title: Dispersion compensating fiber and its manufacturing method
Inventor: AKASAKA YOUICHI
IPC: C03B37/012
Filed: 1997-06-10
Abstract: A dispersion compensating fiber is provided which is capable of reducing the birefringence of the core caused in spinning to suppress an increase in polarization mode dispersion due to the birefringence of the core even though the surface of the core rod is ground to shape the profile of the core during manufacturing. A silica glass cladding 2 doped with fluorine is disposed to surround a silica glass core 1 doped with germanium. The variation in circumferential concentration of germanium at the periphery of the core 1 is set at 0.05% or smaller in relative refractive index difference value.
Patent CA-2208957-A1 (CA)
Title: Portable door stop
Inventor: GAUNT THOMAS C
IPC: E05C17/54
Filed: 1996-01-02
Abstract: A portable door stop (100) comprising a pair of door engaging elements (32, 34, 82, 92) connected to one another by parallel links (44, 46). A spring (56, 116) extends between the elements (32, 34, 82, 92) to draw them together against opposite faces of a door (10, 75). A floor or ground engaging element (62, 108) is pivotally mounted to one of the elements (32, 34, 82, 92) so that when it is in place, movement of the door (10, 75) causes the elements to more tightly engage the door (10, 75). The portable door stop (30, 77) may be used for doors which close in either direction.
Patent CA-2215811-A1 (CA)
Title: Electroabsorption optical intensity modulator having a plurality of absorption edge wavelengths
Inventor: ISHIZAKA MASASHIGE
IPC: H04B10/60
Filed: 1997-09-18
Abstract: In an electroabsorption optical intensity modulator a semiconductor buffer  a first semiconductor cladding layer,  a semiconductor optical absorption layer,  a second semiconductor cladding layer and a semiconductor cap layer are formed on a semiconductor substrate. Also,  a first electrode is formed on the second semiconductor cap layer,  and a second electrode is formed on a second surface of the semiconductor substrate. The semiconductor optical absorption layer includes a first semiconductor optical absorption layer element having a first absorption edge wavelength and a second semiconductor optical absorption layer element having a second absorption edge wavelength different from the first absorption edge wavelength.
Patent CA-2217976-A1 (CA)
Inventor: ZIRING EDO
IPC: A61B34/20
Filed: 1996-04-12
Abstract: Apparatus and methods are provided for positioning a biopsy needle (19) for insertion into a tissue mass by correlating, in real-time, the actual needle position prior to insertion with its probable trajectory once inserted. In a preferred embodiment, the biopsy needle (19) location is tracked electronically and projected over a previously stored or real-time image of the tissue, thus allowing a clinician to observe which features of an imaged tissue the biopsy needle (19) is likely to intersect upon insertion. Continued ultrasound scanning of a selected trajectory may be provided to assess depth of penetration of the biopsy needle (19), when inserted. The apparatus is also provided for expanding the region scanned by an ultrasound transducer (13) beyond the periphery of a compression plate.
Patent CA-2219875-A1 (CA)
Inventor: FUJIHARA SHIRO
IPC: H04N7/50
Filed: 1997-10-31
Abstract: An encoder, which comprises a means 40 for embedding a specific electronic mark data in a characteristic part of an image converted to a spatial frequency area, a quantizing means 50 for quantizing the spatial frequency area data in which the electronic mark data is embedded and a variable length encoder 60 for variable length coding the quantizer output, outputs compression coded digital image data.  A decoder comprises a variable length decoder 80 and reverse quantizer 90 for restoring compression encoded digital image data to spatial frequency area data, means 120 for detecting the electronic mark data from the restored data, and detection display means 130 for displaying the detection result.
Patent CA-2221867-A1 (CA)
Inventor: LI ZHE
IPC: C07C255/56
Filed: 1996-06-04
Abstract: La présente invention concerne un procédé permettant d'inhiber la fixation d'un ligand sur un ARN, cette inhibition étant produite par une petite molécule organique qui se fixe à l'ARN, inhibant ainsi la fixation du ligand. Les petites molécules organiques appartiennent de préférence à la classe des composés dont l'exemple est le 2,5-bis¢3-(2-N,N-diméthylaminopropylamidino)phényl!furanne.
Patent CA-2223774-A1 (CA)
Title: Detection of nucleic acids by formation of template-dependent product
Inventor: WESTERN LINDA MARIE
IPC: C12Q1/68
Filed: 1996-06-05
Abstract: A method is disclosed for detecting a target polynucleotide sequence. The method comprises incubating an oligonucleotide with the target polynucleotide sequence and a nucleotide polymerase under isothermal conditions wherein at least one nucleotide is added to the 3'-terminus of the oligonucleotide to provide an extended oligonucleotide having the additional nucleotides. The presence of extended oligonucleotide is detected as an indication of the presence of the target polynucleotide sequence. The method has particular application to the detection of DNA.
Patent CA-2224589-A1 (CA)
Title: Catheter with an electromagnetic guidance sensor
Inventor: PONZI DEAN M
IPC: A61B5/296
Filed: 1996-06-12
Abstract: The present invention relates to an electrophysiology catheter (102) (an electrode catheter) having an electromagnetic sensor (18) designed internally into the top portion (20). The catheter is a size 7 French or 8 French of metal braided construction with preferably three lumens (22, 24, 26). The catheter (102) has a deflectable tip (20) utilizing an offset lumen with a puller wire, a non-compressible coil in the body section, and a compressible TEFLON sheath (39) in the tip section.  The electromagnetic sensor (18) is mounted internally in the catheter tip (20) by a combination of a hole drilled (36) in the three lumen tip, and a hollow bridging that covers the electromagnetic sensor (18) and connects the tip electrode (12) to the catheter shaft (102).  The tip electrode (12) is secured to the end of the bridging tube (90) by an etched TEFLON ring which mates the electrode stem to the inside of the ring.
Patent CA-2224965-A1 (CA)
Inventor: JEONG SHIN-JAE
IPC: H01J25/04
Filed: 1997-12-16
Abstract: An apparatus for generating a microwave frequency energy includes a cathode for emitting electrons, a first grid for controlling and focusing the flow of electrons  from the cathode, a choke structure for serving as a capacitor, wherein the cathode, the first grid and the choke structure define an input cavity functioning as a resonant circuit.  The apparatus further includes a trimming resistor, one end of which is connected to the first grid and the other end thereof is connected the cathode, for inducing a bias voltage on the first grid, a second grid provided above the first grid and having a plurality of slots through which the electron beams passing through the slots of the first grid pass, an anode for receiving the electrons passing through the slot of the second grid, a voltage converting means for rectifying an AC input voltage and providing a DC driving voltage to the cathode and the anode, an antenna for extracting the microwave from an output cavity, the output cavity being defined by the second grid and the anode, and a feedback structure extending from the input cavity to the output cavity, for feeding a portion of the microwave frequency energy back to the input cavity.