baber/WOPTO huggingface dataset:
Patent CA-2111460-A1 (CA)
Title: Tetrahydrobenzazepine derivatives which inhibit lipoxygenase
Inventor: IKEDA TAKAFUMI
IPC: A61P29/00
Filed: 1992-05-27
Abstract: Compounds of formula (I) wherein n is 1 to 5 and R is hydrogen, C1 to C4 alkyl, arylalkyl having from one to four car-bon atoms in the alkyl moiety or arylalkyl substituted with one or more substituents selected independently from the group consisting of halogen, nitro, cyano, C1 to C6 alkyl, C1 to C6 alcoxy, C1 to C6 halosubstituted alkyl, C1 to C6 hydroxysubstitut-ed alkyl, C2 to C7 alkoxycarbonyl and aminocarbonyl, and the pharmaceutically acceptable salts thereof, inhibit the enzyme lipoxygenase and are useful in treating allergy and inflammatory and cardiovascular conditions for which the action of li-poxygenase has been implicated. These compounds form the active ingredient in pharmaceutical compositions for treating such conditions.
Patent CA-2112961-A1 (CA)
Title: System for providing access to digitally encoded communications in a distributed switching network
Inventor: BRAME CHARLES P
IPC: H04L12/28
Filed: 1994-01-06
Abstract: ABSTRACT OF THE DISCLOSURE      A distributed switching network (switch) routes audio and control signals throughout the switch from various audio sources to one or more audio destinations.  Audio sources such as mobile/portable radio units (via RF repeater transmitters), dispatch consoles, and landline telephone subscribers (via the central telephone switching network) are preassigned and routed onto an audio channel (i.e. a time slot) on a time division multiplexed (TDM) audio bus through a corresponding interface module.  These interface modules broadcast digitized audio and data signals to all other interface modules over their preassigned TDM bus slot.  Audio routing is performed to the audio destinations through corresponding interface modules that selectively "listen" to active TDM network channels.  A digital voice interface module is provided in the switch to permit audio sources/destinations otherwise lacking certain digital processing capabilities (e.g. encryption/decryption) to participate in such digitally based calls.  As a result, console operators and/or landline telephone subscribers may originate and receive digitally encoded calls without themselves having digital encoding/decoding capabilities.
Patent CA-2113419-A1 (CA)
Title: Improved lightning protection for field mounted instruments
Inventor: LONGSDORF RANDY J
IPC: H02H9/06
Filed: 1992-08-07
Abstract: ABSTRACT OF THE DISCLOSURE        A protection circuit is provided for protecting sensitive electrical field instruments from a transient voltage strike and for ensuring that the instruments will meet safety approval during high potential voltage testing. The first and second wires of a two-wire circuit are connected to a first and second terminal respectively. A first surge arrestor electrically couples a first path between the first and second terminal. An impedance and a transient suppresor are connected in series and electrically couple a second path between the first and second terminal. The second path is coupled in parallel with the first path between the first and second terminal and is coupled closer to the internal components of the electrical instruments to be protected than is the first path.  A second surge arrestor is electrically coupled between the second terminal and ground, and has a higher voltage breakdown potential than the first surge arrestsor.
Patent CA-2113848-A1 (CA)
Inventor: KOTITSCHKE GERHARD
IPC: D21F3/02
Filed: 1994-01-20
Abstract: WET PRESS FOR A PAPER MAKING MACHINE            ABSTRACT OF THE DISCLOSURE          A wet press for a paper making machine presses out water from a moist paper web.  The wet press has a plurality of press rolls, preferably five.  The press rolls are paired so that each pair defines a respective press nip.  There are preferably at least four press nips defined by the paired press rolls.  The press rolls are so placed and the press nips are so defined and the web is so trained on the path through the wet press that the paper web is always supported by the outer surface of one of the press rolls on the web path from the first press nip to the last press nip.  At the second press nip in the path of the web, each of the press rolls there forms a felt free second press nip and each of the press rolls at the second nip has a closed outer surface.  The same may be true for the fourth press nip.  Some of the press rolls may be shoe press rolls.
Patent CA-2114921-A1 (CA)
Title: High voltage switching circuit
Inventor: LESEA RONALD A
IPC: H02M7/537
Filed: 1994-02-03
Abstract: ABSTRACT OF THE DISCLOSURE      A pair of transistors (110 and 112) configured with their channels connected in series.  The gate of the "upper" transistor (110) is coupled to a relatively low-voltage, DC power supply voltage by a voltage-clamping and current-steering diode (144); to a relatively high-voltage, DC power supply voltage by the series combination of a current-steering diode (152) and one voltage-clamping zener diode (154 and 156) and coupled coupled to the source of the "upper" transistor by a charge-removing resistor (162).
Patent CA-2116283-A1 (CA)
Title: Fluidized bed reactor having a furnace strip-air system and method for reducing heat content and increasing combustion efficiency of drained furnace solids
Inventor: TOTH STEPHEN J
IPC: F23C10/00
Filed: 1994-02-23
Abstract: FLUIDIZED BED REACTOR HAVING A FURNACE STRIP-AIR SYSTEM AND METHOD FOR REDUCING HEAT CONTENT AND INCREASING COMBUSTION EFFICIENCY OF DRAINED FURNACE SOLIDS                 Abstract of the Disclosure A fluidized bed reactor having a furnace strip-air system and method for reducing heat content and increasing combustion efficiency of drained furnace solids in which a bed of particulate material is supported in a furnace section.  A portion of the bed receives a greater amount of fluidizing gas to increase the stoichiometric conditions in the bed portion, strip relatively fine material from the particulate material in the bed portion and increase the amount of heat transferred to the flue gases.  A cooler is located adjacent the furnace section for receiving particulate material from the bed portion.
Patent CA-2120601-A1 (CA)
Title: Sperm surface protein
Inventor: SILVER LEE M
IPC: A01K67/027
Filed: 1992-10-05
Abstract: The present invention relates to a protein, termed t-complex associated testes expressed-1 (tcte-1) that is found on the surface of mature sperm and is responsible for the binding of sperm to egg during mammalian fertilization. The invention provides for tcte-1 nucleic acids, proteins, antibodies directed toward tcte-1, vaccines, and methods of immunocontraception.
Patent CA-2120880-A1 (CA)
Title: Injection molding method and apparatus for preparing dental prosthesis and medical devices
Inventor: DONG SHUOJIA
IPC: A61C13/34
Filed: 1994-04-08
Abstract: The disclosure describes an injection molding station for a diaphragm cartridge for use in preparing dental prosthesis and medical devices in general.  The cartridge and corresponding machine allow for complete injection of thermoplastic resin.   The cartridge is a predominantly cylindrical flat cartridge with a conical opening.  Plastic resin is ejected from the opening in the cartridge when a heated plunger is pushed on the bottom of the cartridge.   During the injection of the resin into the flask, the bottom of the cartridge is deformed to eliminate the bursting of the cartridge.  The cartridge is utilized in a station in which the cartridge is positioned in a tubular heating chamber with heating elements located on the plunger and the circumference of the  cartridge.    The  cartridge  is  inserted  into  a compression plate which supports the flask and controls the deformation of the cartridge.   The resin flows through the opening into a reversible flask made of primarily two parts,  which are automatically clamped together without the use of clamping devices.   The cartridge has more thermoplastic resin than is required to  fill the flask,  to eliminate the possibility of thermal shrinkage and producing a  less than optimum prosthesis.
Patent CA-2125327-A1 (CA)
Title: Fundamental frequency detector and synthesizer systems
Inventor: HAAS PETER
IPC: G01R23/09
Filed: 1994-06-07
Abstract: A process for determining the fundamental frequency or period of each cycle of aseries of contiguous cycles of an alternating current input wave from an alternating current source is described in which each sequential cycle in the series is treated as the current cycle, and the following contiguous cycle is treated as the succeeding cycle. The steps include: (A) starting to integrate the amplitudes of the current cycle of the input wave when the amplitude of the input wave exceeds a given amplitude in a given polarity; (B) continuing to integrate the amplitudes of the current cycle of the input wave for a first given period of time which is less than the shortest expected wave period being detected and during the first period of time ignoring the value of the integral; (C) continuing to integrate the amplitudes of the current cycle of the input wave for a second period of time until the value of the integral is insubstantially different from its value when the integration started in step (A); (D) maintaining  the value of the integral at the starting value prior to the input wave again reaching the given amplitude in the given polarity; (E) repeating steps (A) through (D) for the succeeding cycle of the input wave; and (F) measuring the time between any given event in the steps (A) through (D) for the current cycle and the corresponding event in the step (A) through (D) for the succeeding cycle, whereby the measured time can be used to determine the frequency or period of the fundamental frequency.
Patent CA-2126827-A1 (CA)
Title: Extruded multilayer polymeric shell having textured marbled surface
Inventor: GOCKEL GARY L
IPC: B29C48/08
Filed: 1994-06-27
Abstract: Multilayer polymeric shells for spas, bathtubs and shower enclosures having a textured and marbled surface layer. The shells are produced by forming by extrusion a multilayer polymeric sheet having a marbled appearing top layer, passing the sheet between rollers to impart a textured surface to the marbled top layer of the sheet, and thermoforming the sheets into the structural shells for spas, bathtubs and shower enclosures.
Patent CA-2129340-A1 (CA)
Title: Method of processing medical metal material
Inventor: FUJIWARA MASAHIRO
IPC: A61B17/00
Filed: 1993-02-10
Abstract: ABSTRACT OF THE INVENTION The process forms medical metal materials of titanium and alloys thereof, which are dissolution-free and highly corrosion-resistant and suitable for use in medical implants and surgical operation tools, into complicated shapes. The process uses discharge processing which is excellent for precision, thus permitting full use of the intrinsic functions of the medical tools and also permitting excellent dissolution freedom and high corrosion resistance to be obtained. For the electrode wire is used titanium or an alloy thereof or platinum or an alloy thereof, thus preventing the spoiling of the excellent dissolution freedom and high corrosion resistance intrinsic to the metal material and permitting the processing of medical implants or tools as designed with high processing accuracy.
Patent CA-2132904-A1 (CA)
Title: Tracer system for error analysis in running real-time systems
Inventor: KLEBER ULRICH
IPC: G06F11/34
Filed: 1994-09-26
Abstract: Tracer systems should not influence running real-time systems such that the real-time demands thereof can no longer be met. In order to resolve this problem, the tracer system disclosed comprises a monitoring means that identifies the dynamic load on a real-time system caused by the tracer system and deactivates the tracer system when the dynamic load upwardly exceeds a specific threshold.
Patent CA-2141038-A1 (CA)
Inventor: BECK JIM
IPC: A01M21/00
Filed: 1993-07-27
Abstract: An apparatus and a method are provided for selectively eliminating weeds in agriculture operations.       To provide selective elimination, at least two light (radiation) emitters (201, 202), powered by an internal power source, are modulated to switch on and off at very high speeds. Each emitter emits radiation of a different emitter wavelength.       The on/off modulation of one emitter is phase shifted by approximately 90 degrees with respect to the modulation of the particular spot on the ground. The light beams (203, 204), provided by the emitters, are reflected off a plant (206) or the soil and are intercepted by a photodetector. Because plants have a characteristic spectral reflectance in regions of the electromagnetic spectrum which can be discriminated from the spectral reflectance of the background earth, the relative amplitudes of the reflected radiation at the two emitter wavelengths varies depending on whether the radiation is reflected off a plant or the soil. A ratio of the radiation at the two emitter wavelengths received by the photodetector is converted to phase. This phase is compared to an initial reference phase of the modulation of one of the emitters. A  controller (221) uses this phase information to determine the presence or absence of a plant and then eliminates the weed.
Patent CA-2141196-A1 (CA)
Inventor: MONEY JULIAN D K
IPC: B65D5/46
Filed: 1993-07-15
Abstract: The disclosure relates to a merchandise container formed from folded flexible sheet material to provide a box form having side/end walls (10, 11) and a top closure (13), in which the top closure comprises integral flaps (17, 19) on the side/end walls which fold with respect to each other and the walls. The end walls (13-17) being pre-formed to bow inwardly such that when the side wall flaps (17a, 17b) are folded in overlapping relation to form the top closure, the end wall flaps (19) form outwardly extending triangular wings which fold downwardly against an increasing resistance until a certain downwardly inclined angle below the horizontal is reached when the end walls bow inwardly allowing the side walls to converge to relieve the resistance and create a force tending to bias the wings downwardly into engagement with the end walls to hold the wings against the end walls and the side wall flaps of the top closure in the closed condition.
Patent CA-2144634-A1 (CA)
Title: Method and device for fire extinguishing by alternating a liquid fog and a liquid jet
Inventor: SUNDHOLM GORAN
IPC: A62C/
Filed: 1993-09-14
Abstract: The object of the invention is to provide a new method for fighting fires, which method requires a small amount of extin-guishing liquid for extinguishing a fire and for preventing reignition. When fighting fires in apartments and the like the fire is at first suppressed by spraying fog-like liquid, and thereafter a concentrated liquid spray is directed into the smouldering fire seat. For this purpose it is suggested to use a pistol-like extinguisher (1) with a hydraulic accumulator (5) as a drive unit and provided with a spray head (3) which at first, when the pressure in the hydraulic accumulator is high, produces a fog-like liquid spray and later, when the pressure in the hydraulic accumulator is reduced, produces a concentrated liquid spray. When fighting fires which develop intensive heat the fire is first suppressed by spraying a water jet from a relatively long distance, and thereafter extin-guished by spraying a liquid fog at close range. For this purpose it is suggested to arrange, in parallel with a fog-producing spray head, a separate nozzle for producing a forceful, concentrated water jet. To shift from spraying liquid fog to spraying water jet, and vice versa, a conventional valve can be used.
Patent CA-2145366-A1 (CA)
Title: Semiconductive power cable shield
Inventor: FLENNIKEN CINDY L
IPC: H05K9/00
Filed: 1995-03-23
Abstract: Vulcanizable semiconductive shield compositions contain a linear, single-site catalyzed polymer formed by polymerizing ethylene with at least one comonomer selected from C3 to C20 alpha-olefins; a carbon black selected from furnace carbon blacks that contain ash and sulfur in amounts of 50 ppm or less and have crystal dimensions L a and L c of 30 .ANG. or less, acetylene carbon blacks, and furnace carbon blacks having an ASTM grade of N-351; and a crosslinking agent. The compositions may be used to manufacture semiconductive shields for electrical conductors, such as power cables. The semiconductive shields exhibit improved processability, low water vapor transmission and low shrinkback, without abrading or corroding extrusion equipment.
Patent CA-2145652-A1 (CA)
Title: Method and Apparatus for Controlling a Peak Envelope Power of a PA
Inventor: MATZ JOHN E
IPC: H03G3/20
Filed: 1994-06-20
Abstract: A method and apparatus is provided for controlling a peak envelope power level in a power amplifier (PA) (10). The method includes the steps of measuring (101) a first peak envelope power value of an input of the PA during a first time period, comparing (102) the first peak envelope power value with a threshold value, and introducing a phase change (103) into a selected signal of a plurality of signals being amplified by the PA when the first peak envelope power value exceeds the threshold. The method further includes measuring (104) a second peak envelope power value during a second time period, comparing (105) the first and second peak envelope power values, and reversing (106) the phase change to the selected signal when the second peak envelope power value exceeds the first peak envelope power value.
Patent CA-2146414-A1 (CA)
Title: Treatment of h. pylori infections
Inventor: GIRARD ARTHUR E
IPC: A61P31/04
Filed: 1995-04-05
Abstract: An infection with Helicobacter may successfully be treated with a compound of the formula (see fig. I) wherein R1 is hydrogen or methyl and R2 is hydrogen or L-alanine-L-alanyl, and the pharmaceutically acceptable acid additive salts thereof. These compounds are useful in the treatment of gastric and duodenal ulcers.
Patent CA-2146495-A1 (CA)
Inventor: DECANDIA LEN C
IPC: A61F13/02
Filed: 1995-04-06
Abstract: Adhesive bandages are prepared from an elastic backing material by decreasing the tension in the backing material just prior to attachment of the adhesive pad.
Patent CA-2149666-A1 (CA)
Title: Manufacture of materials and workpieces for components in nuclear plant applications
Inventor: ALTER DIETRICH
IPC: C21D6/00
Filed: 1992-12-18
Abstract: Austenitic steel intended for use in radiation areas of nuclear reactors is largely resistant to irradiation-induced stress corrosion cracking if its silicon, phosphorus and sulfur contents are reduced in relation to standard commercial steel quantities and its grain structure has finely dispersed carbide precipitation, particularly of niobium carbide. The finely dispersed distribution can be induced in that larger niobium precipitation takes place at annealing temperatures between 1100 and 1150 ·C, and carbide is precipitated through the corresponding annealing at temperatures of approximately 750 ·C.
Patent CA-2155288-A1 (CA)
Title: Fluid blocking device
Inventor: GLOSSOP F RAYMOND JR
IPC: F16L55/124
Filed: 1995-08-02
Abstract: A fluid blocking device for a pipeline having a saddle fitting over an opening in the wall of the pipeline.  The device includes an elongated, resilient plug passable through the pipeline opening to block passage of fluid through the pipeline.  A resilient ring around the resilient plug mates with the opening in the pipeline and with the saddle fitting to form a fluid tight seal therewith.
Patent CA-2156032-A1 (CA)
Title: Readily deployable portable escape ladder
Inventor: DOUGLAS PATRICK
IPC: E06C1/56
Filed: 1995-08-14
Abstract: A readily deployable, portable escape ladder includes nestable rungs maintained in a releasable, stacked state.  The ladder includes a cover having a releasable fastening system which, when released, permits the ladder to move from the  stacked state to an extended state.  The rungs include integral standoff members to displace the ladder from the surface of a building when deployed.  The rungs are spaced one from the other, along a flexible mounting member.  The mounting member penetrates the rungs in a staggered orientation.
Patent CA-2157421-A1 (CA)
Title: Fluid filter with integrated pressure regulator
Inventor: SOMMER BRUNO
IPC: F02M37/22
Filed: 1995-09-01
Abstract: A filter comprising a housing with an inlet and an outlet, and a pressure regulator integrated in the filter housing. In one embodiment the filter comprises a housing, a filter member disposed in said housing defining an unfiltered fluid space and a filtered fluid space, an inlet into the housing communicating with the unfiltered fluid space, an outlet in the housing communicating with the filtered fluid space, and a pressure regulator integrated into the filter housing. Having the pressure regulator integrated in the filter housing among other things, reduces the number of total parts and improves handling during installation and removal.
Patent CA-2158259-A1 (CA)
Inventor: HYDE PATRICK D
IPC: B29C59/04
Filed: 1994-02-04
Abstract: A heat-sealable oriented film or layer of a semi-crystalline thermoplastic polymer. The film has a thin, heat-sealable layer of the same thermoplastic polymer having a different heat-seal temperature, which layer is heat-sealable without requiring fusion of the entire film. There is also provided a method for producing the claimed heat-sealable film.
Patent CA-2160174-A1 (CA)
Title: Automatic wiper-controlled vehicle headlamsps
Inventor: LOCK ROBERT L III
IPC: B60Q1/04
Filed: 1995-10-10
Abstract: A method for automatically controlling headlamps in response to windshield wiper controls is provided.  A microcontroller senses the voltage levels of signals from a windshield wiper switch and a headlamp switch.  If the microcontroller senses that the vehicle operator has turned on the windshield wiper switch, the microcontroller turns on the headlamps of a vehicle unless the windshield wipers are in intermittent mode or the operator of the vehicle has turned off the headlamps within a predetermined period of time.
Patent CA-2160545-A1 (CA)
Title: An erasable sign
Inventor: BILBIE CLIVE JAMES FRANK
IPC: B42D15/10
Filed: 1994-04-14
Abstract: A sign comprises a base layer (2) and a transparent or translucent upper sheet (3) over the base layer (2). An icon or indicia of the sign is associated with the base layer (2) or is printed on the upper sheet (3). The upper sheet and base layer are releasably adhesive together under pressure applied on the upper sheet such as with a blunt stylus, to cause the upper sheet and the base layer to adhere which in one embodiment causes the icon or indicia to be displayed and when the upper sheet is released from the base layer the icon or indicia is erased.  In another embodiment the icon or indicia is displayed when the upper sheet is released from the base layer and is erased when the upper sheet is pressed to adhere to the base layer.
Patent CA-2162055-A1 (CA)
Title: Method for selective opening of abnormal brain tissue capillaries
Inventor: BLACK KEITH L
IPC: A61K38/04
Filed: 1994-04-19
Abstract: A method for selectively opening abnor-mal brain tissue capillaries of a mammal in order to allow selective passage of both low and high molecular weight neuropharmaceutical agents into abnormal brain tissue. The method utilizes direct infusion of bradykinin into the carotid artery. The dose of bradykinin is main-tained at levels which provide opening of ab-normal brain tissue capillaries without opening normal brain capillaries. The method is useful for introducing a wide variety of neuropharma-ceutical agents selectively to brain tumors and other abnormal brain tissue.