baber/WOPTO huggingface dataset:
Patent CA-2088380-A1 (CA)
Title: Dual capacitor biphasic defibrillator waveform generator employing selective connection of capacitors for each phase
Inventor: SWANSON DAVID K
IPC: A61N1/39
Filed: 1993-01-29
Abstract: ABSTRACT OF THE DISCLOSURE         An implantable defibrillator/cardioverter which generates a biphasic defibrillation/cardioversion waveform including a pulse generator comprising two capacitors and a pair of switches for connecting the capacitors in parallel during a first phase and in series during a second phase.  The first phase has a small "tilt" between the leading edge voltage and the trailing edge voltage.          The second phase has a leading edge voltage which is approximately twice the trailing edge voltage of the first phase.
Patent CA-2089567-A1 (CA)
Inventor: VERDUIJN JOHANNES P
IPC: C07C5/11
Filed: 1991-08-14
Abstract: Zeolites L, and in particular zeolites KL comprising silicon, aluminium and 1 to 10% by weight of non-exchangeable zinc, are zeolites with a reduced overall electronegativity, and may be used in processes where alumina-zeolites L are conventionally used, such as the aromatisation of C6 alkanes, or selective hydrogenation of a benzyl compound.
Patent CA-2092840-A1 (CA)
Title: Integrated optical package for coupling optical fibers to devices with asymmetric light beams
Inventor: CHO ALFRED Y
IPC: G02B6/42
Filed: 1993-03-29
Abstract: This invention embodies an integrated optical package including an optical component having an asymmetric modal output, and a lens integrated with the component for coupling to another optical component having a large modal area. The coupling is achieved by the use of a Polymeric Elongated Waveguide Emulating (PEWE) lens. In the exemplary embodiment the first optical component is a modulator, and the other optical component is an optical fiber. A facet of the modulator is etched by reactive ion etching (RIE) which allows integration of the PEWE lens on a common substrate. The lens is manufactured using a polymer film on a dielectric cladding layer. The fabrication relies on the remelt and reflow properties of polymer films to provide a smooth adiabatic mode contraction from a circular (optical fiber) mode (=6µm in diameter) to a semiconductor (=1µm) over a length of 250 µm. The PEWE lens permits coupling with an insertion loss of 0.5 dB and 80 percent coupling efficiency, even though the lens is butt-coupled to a fiber without any external lens. The PEWE lens allows the realization of better than 80 percent direct fiber butt-coupling efficiencies to semiconductor lasers, photodetectors, optical modulators, switches and amplifiers with a simultaneous order of magnitude relaxation of the alignment tolerances typically needed for the coupling of semiconductor devices with single-mode fibers.
Patent CA-2097863-A1 (CA)
Title: Filter mounting frame for eyeglasses
Inventor: BUFFET ALAIN
IPC: G02C7/16
Filed: 1993-06-07
Abstract: ABSTRACT OF THE DISCLOSURE      In a pair of eyeglasses with filter lenses, each filter is mounted in a ring shaped in the form of a prone U whose opening is directed toward the center of the ring.  The ring is contained within an outer ring connected to the eyeglasses mounting frame.  A manipulating device comprising a molded member is located inside the ring in a recess formed in the periphery of the filter lens.  The outer ring has a semicircular slot permitting the angular displacement of a positioning rod, which is integral with a piston slidably mounted in a recess against the action of a spring. One end of the rod is integral with a gripping member, while the other end is engageable in one of the positioning openings formed through one limb of the shaped outer ring.
Patent CA-2098488-A1 (CA)
Title: Denture stabilizing compositions
Inventor: GRUBBS DENNIS R
IPC: A61K6/00
Filed: 1991-12-16
Abstract: Disclosed are adhesives and stabilizer compositions comprising a lower alkyl vinyl ether-maleic acid copolymer and their salts, said copolymer having a specific viscosity larger than 1.2, the sepcific viscosity being determined in methyl ethyl ketone at 25 ·C  and wherein said copolymer has a bulk density of from about 0.3 to about 1.2 grams per cubic centimeter and a specific surface area of from about 0.5 to about 2.5 square meters per gram.
Patent CA-2098514-A1 (CA)
Title: Method and device for the injection of pulverised coal into a blast furnace crucible
Inventor: ULVELING LEON
IPC: C21B7/00
Filed: 1993-06-16
Abstract: METHOD AND DEVICE FOR THE INJECTION OF PULVERISED COAL INTO A BLAST-FURNACE CRUCIBLE            ABSTRACT        A method is provided for the combined injection of  pulverised  coal  and  a  gaseous  oxidant  into  a crucible  of  a  shaft  furnace,  especially  a  blast furnace, through a hot-air blast tuyere. In the region of the nozzle end of the tuyere in the crucible, the pulverised coal is injected into the hot-air blast, in the  form  of  a  hollow  annular  jet  and  the  gaseous oxidant is injected inside the hollow annular jet. A lance for implementing the method comprises two coaxial tubes (16 and 18) and a distributing unit provided with a central bore (52) for the pulverised coal.      Fig. 3.
Patent CA-2098645-A1 (CA)
Title: Fuel Cell Stack and Method of Fastening the Same
Inventor: OKAMOTO TAKAFUMI
IPC: H01M8/24
Filed: 1993-06-17
Abstract: A fuel cell stack having unit cells and separators, in which each unit cell comprises a solid polymer electrolyte membrane having a pair of electrode catalysts attached on both surfaces, and a pair of collectors, each made of a rigid body, being in contact with respective electrode catalysts, and each of the separators comprises a pair of pressure generating plates defining therebetween a pressure chamber to which a pressurized fluid is introduced, the pressure generating plates being deformed by the pressurized fluid and pressed against the adjacent respective collectors.
Patent CA-2100160-A1 (CA)
Title: 3-substituted 1,2,3,4-oxatriazole-5-imine compounds, a process for the preparation thereof and a pharmaceutical preparation containing said compounds
Inventor: KARUP GUNNAR L
IPC: A61P11/08
Filed: 1992-02-11
Abstract: The present invention relates to hitherto unknown 3-substituted 1,2,3,4-oxatriazole-5-imine compounds which have proved to have biological effects making them suitable for treatment of cardiovascular diseases (blood clots), angina pectoris and asthma, a process for the preparation thereof and a pharmaceutical preparation comprising said compounds.
Patent CA-2101155-A1 (CA)
Title: Mass spectrometry method and apparatus employing in-trap ion detection
Inventor: KELLEY PAUL E
IPC: H01J49/26
Filed: 1992-02-11
Abstract: A mass spectrometry method and apparatus in which trapped ions of interest are detected as they strike a detector comprising at least one of the electrodes which establish the ion trapping field.  The invention eliminates the need to eject ions from the trap, and thus eliminates the needs to perforate one or more of the trap electrodes. In one class of preferred embodiments, the trapping field is a three-dimensional quadrupole trapping field within a region (16) bounded by a ring electrode (11) and a pair of end electrodes (12, 13). In one embodiment, the inventive in-trap detector is a trap electrode (13) composed (or partially composed) of phosphorescent material which emits photons in response to incidence of ions at its inward-facing surface (the surface of the electrode which faces the trap region). In another embodiment, the in-trap ion detector is a Faraday effect detector which includes an electrically isolated conductive pin (40) mounted with its tip flush with the inward-facing surface of one of the trap electrodes (13).
Patent CA-2105346-A1 (CA)
Inventor: KANOU HIROSHI
IPC: F04B27/12
Filed: 1993-09-01
Abstract: A piston type compressor includes a compressor housing enclosing a crankchamber, a suction chamber, and a discharge chamber therein. The compressor housing comprises a cylinder block having a plurality of cylinders. A drive shaft is rotatably supported in the cylinder block. A plate is tiltably connected to the drive shaft and is coupled to a plurality of pistons which may be driven in a reciprocating motion within the cylinders upon rotation of the drive shaft. Each of the pistons is provided with a rotation prevention mechanism which may include a first rotation prevention device formed on the center of the piston and second rotation prevention device disposed within the compressor housing, the first and second rotation prevention devices cooperating to prevent the piston from rotating about its own axis. The first and second rotation prevention devices each have at least one sliding surface formed thereon. Further, the rotation prevention mechanism may include a rotation prevention device formed on a center of the piston, the rotation prevention device including at least two sliding surfaces formed on both radial sides of the piston, each sliding surface smoothly sliding on an adjacent sliding surface of an adjacent rotation prevention device so that the rotation prevention device and the adjacent rotation prevention device cooperate to prevent the piston from rotating about its own axis. The sliding surfaces of the rotation prevention mechanism may be formed to be fine surfaces by machining in a finishing process.
Patent CA-2111455-A1 (CA)
Title: Multilayered biodegradable stent and method for its manufacture
Inventor: EURY ROBERT
IPC: A61F2/92
Filed: 1993-12-14
Abstract: ABSTRACT OF THE INVENTION           A stent of multilayered laminated construction wherein one layer addresses the structural requirements of the  stent  and  additional  layers  release  drugs  at predictable rates.  Both the structural layer as well as the  drug  releasing  layers  are  eventually  completely resorbed by the body.
Patent CA-2111720-A1 (CA)
Title: Device for trimming flat products, especially multi-sheet printed products
Inventor: STAUBER HANS-ULRICH
IPC: B26D7/26
Filed: 1993-12-17
Abstract: An apparatus for trimming folded multi-sheet printed products along the bloom edge and along each of the opposite side edges of each product. The apparatus comprises a first cellular wheel (2) which is mounted for rotation about a vertical axis and which receives the products in upwardly open cells and trims their bloom edges. A second cellular wheel (4) is mounted for rotation about a horizontal axis and receives the products from the first wheel in radially open cells and trims the products along their opposite side edges. Each wheel mounts first blade members (26;36) mounted along an edge of each cell, and a fixed counter blade (29;39) is provided which engages the first blade members upon rotation of the wheel. The wheel also includes an annular running surface (47), and the counter blade is connected to a guide member (46) which is positioned to engage the running surface.
Patent CA-2112116-A1 (CA)
Title: Manufacturing corrugated board
Inventor: SHAW NEIL W
IPC: B31F1/28
Filed: 1992-08-18
Abstract: Corrugated paperboards are prepared for corrugation and adhesive bonding of mediums and liners is promoted by expos-ing the mediums liners and adhesives to radiant energy from a thermal source ranging from 1100 °C to 2300 °C and emitting a dominant wavelength in the range of 2.1 to 1.0 microns. The speed of adhesive bond development is increased. Polymeric adhe-sives may be used as alternatives to conventional starch based adhesives.
Patent CA-2112198-A1 (CA)
Title: Anti-frost
Inventor: BANICO SIEGFREDO V
IPC: C09K3/18
Filed: 1993-12-22
Abstract: Transportation accessories for warm blooded creatures and food to keep from frosting.
Patent CA-2112559-A1 (CA)
Inventor: GRAEBE ROBERT H
IPC: A47C31/10
Filed: 1992-02-18
Abstract: A cover (A), which fits over a cushion (B), has a top panel (10) formed from a highly elastic fabric, bottom panel (12) formed from a high friction mesh, and side panels (14) connecting the top (10) and bottom (12) and formed from a flexible but non-elastic material. The top panel (10) easily conforms to the shape of the user's buttocks without exerting shear on the skin. The bottom panel (12) stabilizes the cushion on a supporting surface by reason of substantial friction between it and the supporting surface.
Patent CA-2115184-A1 (CA)
Title: Cloth for ink-jet printing and ink-jet printing process
Inventor: FUKUNISHI AKIRA
IPC: B41M5/52
Filed: 1994-02-08
Abstract: The  invention  relates  to  a  cloth  for  ink-jet printing deposited with  a water-insoluble water-absorbing resin having a water absorption capability of 50 to 1,000 ml/g,  and  an  ink-jet  printing   process  comprising  the steps of providing the printing cloth with a printing ink by  an  ink-jet process,  plus  heating  and  fixing,  and cleaning.       The  cloth  for  ink-jet  printing of  the  invention can  be  printed  at  high  reproducibility,  with  excellent sharpness and build-up of the printing image.
Patent CA-2116468-A1 (CA)
Inventor: GROLMAN ROBERT J
IPC: C01F7/0693
Filed: 1994-02-25
Abstract: A process for recycling spent potlining material from aluminum reduction cells contaminated with fluoride and aluminium values.  The process comprises first reducing the average particle size of the spent potlining material to smaller than 28 Tyler mesh to form a powder.  The powder is then treated with an aqueous sodium hydroxide solution containing about 10 to 60 g/L of sodium hydroxide at a temperature in the range of between 60 and 90°C to form a solution containing fluoride and sodium aluminate and a residual solid.  The solution is removed from the residual solid and the content of NaOH is adjusted in the solution to the range of about 10 to 60 g/L of NaOH, if the content differs from this range, to produce a solution suitable for cyanide destruction.  This solution is then heated to a temperature in the range of about 160 to 220°C at a pressure in the range of about 150 to 350 p.s.i. for a time of between about l/2 and 3 hours to destroy cyanide values in the solution.  Water is evaporated from the resulting solution to cause fluoride compounds in the solution to crystallize. The fluoride crystals are then separated from the sodium aluminate-containing solution and may be recrystallized or reacted with calcium hydroxide to precipitate calcium fluoride from a solution of sodium hydroxide.  The sodium hydroxide may then be used for the treatment of further potlining material.
Patent CA-2117387-A1 (CA)
Title: Detection of Location of Faults in Cables
Inventor: MASHIKIAN MATTHEW S
IPC: G01R31/11
Filed: 1993-02-19
Abstract: A method and apparatus for locating an incipient fault at a point along the length of an insulated power line includes the application of an excitation voltage at an open end of the power line, and the signal pulse transmitted along the power line to the open end is passed through a high pass filter to remove the portion of the signal which is at a frequency below the excitation voltage and its harmonics. The filtered signal is amplified and passed through a band pass filter to remove a high frequency portion of the signal containing a large proportion of noise relative to the frequency of the partial discharge frequency from the incipient fault. This filtered signal is passed to a digital storage device adapted to be triggered by a signal of a predetermined amplitude, and the triggered digital storage device receives the amplified signal directly from the amplifier and stores digital data concerning amplitude and time for the peaks of the amplified signal for a predetermined period of time. The stored digital data is processed to identify the peaks reflecting the point of partial discharge in the power line.
Patent CA-2119264-A1 (CA)
Title: System for short-range transmission of signals over the air using a high frequency carrier
Inventor: SCHOTZ LARRY
IPC: H04B1/16
Filed: 1992-08-20
Abstract: A system is provided which transmits either analog or digital data signals over the air. The system includes a transmitter (10) and a receiver (12). The transmitter and receiver are arranged to transmit signals using a carrier signal having a high frequency such as in the range of 902-928 MHz. The transmitter and receiver are configured to provide for the transmission of two channels of stereophonic signals while maintaining high signal-to-noise ratios, good frequency response, and low distorsion. To provide for the proper transmission of signals between transmitter and receiver, these devices include oscillating circuits (40, 102) having ceramic resonators which provide a base frequency which is readily modulated to facilitate proper transmission of either analog or digital signals between the transmitter and receiver. To further improve the transmission capability between the transmitter and receiver both include substantial buffering, isolation and shielding between selected circuit components to prevent unwanted areas of frequency modulation within the transmitter and receiver.
Patent CA-2119845-A1 (CA)
Title: Selective inorganic catalysts in the form of molecular imprints in cavities
Inventor: MAIER WILHELM F
IPC: B01J37/03
Filed: 1994-03-24
Abstract: SELECTIVE INORGANIC CATALYSTS       IN THE FORM OF MOLECULAR IMPRINTS IN CAVITIES                  Abstract of the Disclosure The present invention relates to a process for producing inorganic  solids  as  catalysts  which  contain  imprints  of molecules in the form of cavities, which molecules in their three-dimensional  structures  conform  to  intermediates  or transition  states  of  chemical  reactions  to  be  catalyzed, characterized in that inorganic or organometal monomer units are polymerized in the presence of the molecules to be imprinted, wherein the molecules to be imprinted have been chemically bonded to anchor groups (moonomer units) and are admixed prior to or in the beginning of the polymerization process and the imprinted molecules are subsequently removed after the poly-merization, to the resulting catalysts and to the use thereof.
Patent CA-2120220-A1 (CA)
Inventor: SCHNORR RICHARD E
IPC: B65H3/68
Filed: 1994-03-29
Abstract: ABSTRACT OF THE DISCLOSURE          A sheet feeder (10) includes a frame (26) with an inclined surface (94) for supporting a stack of sheets to be fed and a feed roller (96) mounted on the frame (26).   A retard roller (106) is mounted adjacent to the feed roller (96)  and cooperates therewith to define a nip  (108)  for receiving a forward edge of the bottom sheet in the stack.          Upright guides (116, 119) are mounted on the frame (26) and are engageable with a forward edge of a stack of sheets supported on the inclined surface (94).   The guides (116, 119)  are disposed at an acute angle with respect to the inclined surface (94) so that when the forward edge of the stack engages the guides (116, 119) the sheets automatically shift longitudinally relative to each other to facilitate feeding of a single sheet into the nip (108).
Patent CA-2121282-A1 (CA)
Inventor: BOWEN LARRY
IPC: A24D3/00
Filed: 1994-04-14
Abstract: A cigarette smoke filter is provided for use in a smoker's accessory for filtering cigarette smoke, the filter comprises: a tubular filter normally of micro-fibres for removing particulate material from cigarette smoke and optionally an outer filter layer of activated carbon material or the like for adsorbing gaseous components from the cigarette smoke. The efficiencies of the tubular filters is such to remove substantially all of the particulate and gaseous components from the cigarette smoke so that the filtered smoke stream can be discharged into the surroundings free of any cigarette smoke smell.
Patent CA-2122394-A1 (CA)
Title: Expanded Slip Well Anchor
Inventor: LEISMER DWAYNE D
IPC: E21B23/01
Filed: 1994-04-28
Abstract: A well anchor having a body with a mandrel movably extending therethrough with first and second slips connected to the mandrel. Each of the slips includes a wedge surface and the wedge surfaces engage each other whereby movement of the first and second slips toward each other will expand the slips outwardly. The wedge surfaces are at an angle to and extend across the longitudinal axis of the body for maximizing expansion.
Patent CA-2123487-A1 (CA)
Title: Adhesive hydrogels having extended use lives and process for the preparation of same
Inventor: FOX ADRIEN S
IPC: A61K9/70
Filed: 1992-11-12
Abstract: This invention relates to a non-stringy adhesive hydrophilic gel comprising an aqueous mixture of a radiation crosslinkable water-soluble polymer, at least one humectant effective to extend the moisture retaining characteristics of the gel and which inhibits the ability of radiant energy to crosslink the water-soluble polymer, a pharmacologically active agent, and a crosslinking promoter effective to counteract the crosslinking inhibitory effect of humectant. The aqueous mixture is exposed to radiant energy effective to provide a non-stringy adhesive cohesive homogeneous hydrophilic gel that has an extended in-use lifetime. The gels can be formed into PATCHES for long term application of the pharmacologically active agent to a patient.
Patent CA-2125361-A1 (CA)
Title: Cosmetic composition containing a pseudo-latex with remanence properties
Inventor: MOUGIN NATHALIE
IPC: A61Q5/00
Filed: 1994-06-07
Abstract: This composition contains, in an appropriate cosmetic vehicle, a pseudolatex consisting of particles of a free-radical film-forming polymer containing carboxylic acid functional groups neutralised to a degree of neutralisation of between 10 and 80% using a multifunctional neutralising agent consisting either of a diamine or of the combination of a polyvalent metal salt and of an inorganic or organic base, the mean diameter of the said particles being between 10 and 450 nm. The composition is preferably provided in the form of a shampoo, a conditioner, a styling or treatment gel or lotion, or a hair shaping product or in the form of a make-up product such as a mascara or a nail varnish.
Patent CA-2125758-A1 (CA)
Inventor: THOMPSON KEVIN D
IPC: F23N1/00
Filed: 1994-06-13
Abstract: A method for providing a low fire mode and a high fire mode of a heating cycle in a current cycle of a furnace as a  function of the previous heating cycle wherein  the  current  heating  cycle  is  a  function exclusively of time run in low fire mode and time run in high fire mode of the previous heating cycle, comprising the steps of: (1) determining the existence of a heating load to be satisfied; (2) running burners in low fire mode for  a  first  time  interval  that  does  not  exceed  a predetermined limit, Ldes; (3) running the burners in high fire mode for a second time interval until the heating load is satisfied; (4) calculating a BtU load requirement, as a function of the first time interval and the second time interval; and (5) determining the desired low fire mode  time  limit,  Ldes for the  next  cycle  from  the calculated BtU load requirement.
Patent CA-2126602-A1 (CA)
Title: Herbicidal compositions
Inventor: QUAGHEBEUR THEO
IPC: A01N37/18
Filed: 1994-06-23
Abstract: Co-application of certain chloroacetamide herbicides with certain triketone herbicides provides improved herbicidal activity.