baber/WOPTO huggingface dataset:
Patent CA-2184605-A1 (CA)
Title: Mechanical milking process
Inventor: SCHULZE-WARTENHORST BERNHARD
IPC: A01J5/007
Filed: 1995-01-24
Abstract: Before the main milking phase there is a mechanical stimulation phase divided into a pre-stimulation phase in which no significant quantity of milk is yet extracted and a subsequent control phase in which the change in the pressure cycle in the intermediate space in the udder cup reduces the intensity of the pressure exerted on the udder by the cup rubber in such a way that milk is extracted. The main milking phase starts as soon as the flow of milk exceeds a predetermined threshold which is selected so that adequate stimulation of the beasts is ensured and over-stimulation is prevented.
Patent CA-2187408-A1 (CA)
Title: Liquid Forced-Feed Apparatus
Inventor: YOMOTO HIDEAKI
IPC: F16T1/38
Filed: 1996-10-08
Abstract: A liquid forced-feed apparatus, such as a steam trap or pump-trap combination, simplified in construction by decreasing the number of component parts, and capable of switching  a  change-over  valve  smoothly  with  reduced buoyancy.   A  float, a  change-over  valve  and  a  snap mechanism are  built  in a  hermetic  vessel.   The  snap mechanism includes a float arm which rotates around a first shaft, a sub-arm which rotates around a second shaft, a spring bracket section formed on the float arm, a spring bracket section formed on the sub-arm, and a reversible plate spring disposed between the spring bracket sections. The  float  is  connected  to  the  float  arm,  and  the change-over valve is connected to the sub-arm.
Patent CA-2187512-A1 (CA)
Inventor: SCHARNWEBER DIETER
IPC: A61F2/28
Filed: 1996-02-06
Abstract: The invention concerns a process for producing a gradient coating of calcium phosphate phases and metal oxide phases on metallic implants, in particular made of titanium or titanium alloys, for use as dental, jaw or joint implants. A solution containing calcium ions and phos-phate ions is used as an electrolyte the pH value of which is slightly acidic to approximately neutral. The substrate electrodes are alternately polarized to be cathodic or anodic. The depos-ited layer forms a gradient coating, which is strongly adherent, has a fine structure and is dis-tinguished for its high degree of biocompatibility.
Patent CA-2189771-A1 (CA)
Title: Switch with controlled rise and fall characteristics
Inventor: FAZAKAS ANDRAS
IPC: H02M1/08
Filed: 1995-04-28
Abstract: The invention relates to an electric switch with controlled rise and fall characteristics for electronic switching and power controlling, comprising a triac or an SCR (silicon controlled rectifier) switching element (Tk) connected in series with the load (L), a rectifier bridge (2), AC inputs of which are connected to the gate and to a first power electrode of the switching element (Tk). An SCR and also the positive and negative inputs (I+, I-) of a control circuit (7) arranged between the DC outputs (+, -) of the rectifier bridge (2). The output of the control circuit (7) is connected to the gate of he SCR (Ti). A filter circuit (1) connected between the jointed gate and second power electrode of the switching element (Tk), and one of the AC inputs of the rectifier bridge (2). According to the invention the control circuit (7) comprising an amplifier stage (6) having 2 control input (1), and a diac (Dk) connected to the output of the amplifier stage (6), the other terminal of the diac (Dk) constitutes the output of the control circuit (7), and the input terminals of the amplifier stage (6) constitute the positive and negative inputs (I+, I-) of the control circuit (7). Furthermore a direct or indirect feed-back is provided between the control input (I) of the amplifier stage (6) and the positive DC output (+) of the rectifier bridge (2).
Patent CA-2190458-A1 (CA)
Title: A coupling device presenting and/or dominating a capacitance belonging to a board with a printed circuit
Inventor: BODAHL JOHNSEN HELGE
IPC: H05K1/16
Filed: 1995-07-31
Abstract: The invention relates to a coupling device presenting a capacitance belonging to a board with a printed circuit, where said board (1) consists of several electrically conducting layers (50e, 50g) with electrically isolating layers in between (50eg). A surface extension of a reference potential related layer (50e), an opposite surface extension of a supply voltage related layer (50g) and a chosen distance in between said layers are adapted to form a capacitor function to smooth voltage spikes so that the DC-supply voltage can be constant around circuits (2) mounted on said board even at rapid current variations as said circuits and/or components are activated.
Patent CA-2192806-A1 (CA)
Title: Slag control apparatus for molten metal vessels
Inventor: FORTE GARY L
IPC: C21C5/46
Filed: 1995-06-22
Abstract: A slag control shape (32) is releasably mounted on a cover for a molten metal vessel (10). An actuator (164) is connected to a slag control shape release member (100) to move the release member (100) from a first position engaged with the slag control shape (32) to a second position disengaged from the slag control shape (32) to allow the slag control shape (32) to descend into the molten metal vessel (10). Upon the occurrence of a predetermined condition, such as a predetermined weight of molten metal in the vessel (10) or a predetermined total time of molten metal discharge from the vessel (10), a controller (152) generates a signal to the actuator (164) to automatically release the slag control shape (32) into the vessel (10). The controller (152) is located remote from the actuator (164) and transmits the activation signal (164) to the actuator by radio frequency signals, directly through an electrical conductor, or to a light emitter which transmits a light beam to a photodetector mounted on the cover (28).
Patent CA-2194221-A1 (CA)
Title: Cationic amphiphiles
Inventor: HEATH TIMOTHY D
IPC: C07F9/10
Filed: 1994-06-22
Abstract: Cationic amphiphiles are provided that are alkyl or alkoxyalkyl O-phosphate esters of diacylphosphatidyl zwitterionic compounds such as phosphatidylcholine or phosphatidyl ethanolamine. The amphiphiles can be used as carriers for delivering macromolecules intracellularly.
Patent CA-2194480-A1 (CA)
Title: Amino acid-derived diaminopropanols
Inventor: PAL BIMAN
IPC: C07D207/12
Filed: 1995-07-05
Abstract: The present invention relates to a method of forming a 1,3-diamino-3-substituted-2-propanol chemical intermediate from which various chemicals, such as selected protease-inhibitors and other drugs, as well as polymers, can be synthesized. The method includes contacting a nitromethyl amino acid compound with at least one reducing agent to form the 1,3-diamino-3-substituted-2-propanol chemical intermediate.
Patent CA-2195588-A1 (CA)
Title: Water pressurized drain cleaner
Inventor: DESNOYERS GERALD C
IPC: B08B3/02
Filed: 1997-01-21
Abstract: A plumbing device used for clearing slow moving or plugged drains.     The device consists of a length of hose of which one end is connected to a pressurized water source. The other end consists of a flexible ball which is manually held in contact with the drain to be cleaned.     Hot or cold water may be applied under pressure from a municipal - household water system.
Patent CA-2195871-A1 (CA)
Title: Improved peristaltic pump
Inventor: SUNDEN BENGT
IPC: F04B43/12
Filed: 1995-06-05
Abstract: An improved peristaltic pump using a pumptube comprising an inner tube and an outer tube each of rigid fluoroplastic material, preferably polytetrafluoroethylene (PTFE), is provided. The pumping section of the pumptube which contacts the pressure rollers of the peristaltic pump is preformed or shaped into a flattened, oval-like shape which approximately conforms to the pumptube passageway in the peristaltic pump. The pressure rollers contact and compress the flattened side of the pumptube and, thereby, effect the transport or pumping of the fluid. Methods for preparing the pumptubes of this invention are also provided. Corrosive, hot, and/or high pressure fluids can be readily handled using the improved pumtubes and peristaltic pumps provided.
Patent CA-2195986-A1 (CA)
Title: Dynamic light scattering microvolume cell assembly for continuous flow dialysis
Inventor: FREUD PAUL J
IPC: G01N15/02
Filed: 1995-07-21
Abstract: A dynamic light scattering analyser which comprises a cell housing (3) and a cell chamber (9), the cell chamber (9) being formed within the cell housing (3) such that the cell chamber (9) is exposed to a membrane (17) which is capable of retaining within the cell chamber (9) the particles of a sample introduced into the cell chamber (9) while allowing a liquid carrier to diffuse across the membrane in and out of the cell chamber; a light source, an optical waveguide (37, 39) which is capable of exposing the particles to a light source and which is capable of receiving the light scattered from the particles within the cell chamber (9) and the light reflected from the waveguide-solution interface; and a pump for controlling the flow rate and concentration of the carrier liquid which contacts the membrane (17).
Patent CA-2197819-A1 (CA)
Inventor: SMITH RONALD A
IPC: A47K1/14
Filed: 1997-02-18
Abstract: A sink stopper comprises a perforated strainer basket, a sealing member, an upwardly extending handle, and a downwardly depending locating stem. The locating stem comprises a base portion and two substantially parallel spaced-apart co-operating legs that are substantially rigid yet resiliently deformable towards each other. Each peripheral surface comprises an outwardly and upwardly sloped guide surface disposed at the bottom end portion thereof, an outwardly and downwardly sloped grate-contacting surface disposed at the top end portion thereof, and a grate-receiving notch disposed between the guide surface and the grate-contacting surface. The grate-receiving notch includes an upwardly facing catch surface shaped and dimensioned to catch on the grate in interfering relation therewith. The maximum width of the locating stem at the bottom end of the sloped grate-contacting surface is greater than the diameter of the central guiding aperture in the grate. The sink stopper is movable between a seated flow precluding position whereat the locating stem engages the grate at the outwardly and downwardly sloped grate-contacting surface so as to thereby bias the sink stopper downwardly, and a raised straining position whereat the locating stem engages the grate at the grate-receiving notch, so as to thereby support the sink stopper and so as to resist upward movement therefrom of the sink stopper.
Patent CA-2199643-A1 (CA)
Title: System for controlling the flow of temperature control fluid
Inventor: HOLLIS THOMAS J
IPC: F01P7/14
Filed: 1995-09-12
Abstract: A temperature control system in a liquid cooled internal combustion engine equipped with a radiator. The system comprises a flow control valve, first and second sensors and an engine computer. The flow control valve controls flow of a temperature control fluid through a passageway. The flow control valve has a first state for preventing or inhibiting the flow and a second state for allowing the flow. The first sensor detects the temperature of the temperature control fluid and the second sensor detects ambient air temperature. The engine computer receives signals from the first and second sensors and compares the signals to a set of predetermined values which define a curve. Preferably a portion of the curve has a non zero slope. The engine computer determines a desired state of the valve based on the comparison and produces control signals for actuating the valve into the desired state.
Patent CA-2199652-A1 (CA)
Title: Solubilization of Boric Acid
Inventor: DEAN FRANK WILLIAM
IPC: C05D9/02
Filed: 1997-03-11
Abstract: The present invention is directed to methods for solubilizing boric acid to produce liquid, boron-containing solutions. In these methods, boric acid is added to a previously formed solution of a metal ion and ligand. The ligand must be capable of both complexing the metal ion and simultaneously coordinating or hydrogen bonding with the boric acid. Preferred metal ions are the transition metals. Preferred ligands are the alkanolamines, polyamines, dialkylaminoalkylamines and alkyldiaminecarboxylic acids and salts thereof. Using the methods of the present invention, stable, clear solutions, preferrably aqueous solutions, containing about 9-11 percent-by-weight or more boron are readily prepared.
Patent CA-2200413-A1 (CA)
Title: A method of installing the casing in a well and apparatus therefor
Inventor: HEAD PHILIP FREDERICK
IPC: E21B21/10
Filed: 1997-03-19
Abstract: A method of providing a casing in a well is disclosed in which casing comprising a series of casing sections, the first section of which is provided from the top of the well and the subsequent sections arranged progressively downwards therefrom, are lowered into the well sequentially by a suitable lowering means such as a coiled tubing runner. Well fluids which are displaced by the lowering of the subsequent sections and the lowering means pass from the lower portion of the well up through the internal bore of the sections. The displaced fluids pass out from the internal bore of the lowering means into an outside annulus between the lowering means and existing casing sections through radial closable openings or side valves. A lockable non return valve, provided at the lower end of the section to be fitted, normally permits flow downwardly out of the casing and prevents flow upwardly into the casing, but may be optionally arranged in a locked open position to permit the well fluids to flow inside the internal bore of the sections to be fitted. The invention also relates to a lowering tool which enables the casing sections to be lowered and permits the well fluids to flow out into the adjoining channel.
Patent CA-2200436-A1 (CA)
Title: Combination therapy for hypercholesterolemia
Inventor: MOREHOUSE LEE A
IPC: A61P9/10
Filed: 1995-06-07
Abstract: Pharmaceutical combination compositions including certain cholesterol absorption inhibitors and cholesterol synthesis inhibitors. The compositions are useful for the treatment of hypercholesterolemia and atherosclerosis.
Patent CA-2200636-A1 (CA)
Inventor: LOUKKOLA JUKKA
IPC: H01P1/205
Filed: 1997-03-21
Abstract: The present invention relates to radio frequency filters and a method for adjusting the frequency response of the filter, more particularly to filters having a resonator construction. In the construction in accordance with the invention, the surface currents appearing in the conducting material short circuiting the ends of the resonators, are influenced e.g. by forming patterns to said conducting material, and through that the high frequency characteristics of the short-circuiting connection are influenced, still maintaining a galvanic short circuit between the inner conductors of the resonator.
Patent CA-2201307-A1 (CA)
Title: Method for making a bimetal milling roller, and resulting milling roller
Inventor: GUERARD NORBERT
IPC: B22D13/00
Filed: 1995-09-22
Abstract: A method wherein wear inserts (16) made of highly wear-resistant material are arranged around the edge of a transportable mould (10) made of a material capable of withstanding temperatures of over 400 ~C, the mould (10) and the inserts (16) are preheated in a furnace, the mould (10) is quickly removed from the furnace together with the inserts (16) and placed on a rotating centrifugal casting machine, ductile cast iron (18) is cast therein, and the moulding is removed after cooling.
Patent CA-2202461-A1 (CA)
Title: Suture anchor assembly
Inventor: LUMAN DAVID P
IPC: A61B17/88
Filed: 1996-08-13
Abstract: A novel suture anchor assembly (1) is provided which comprises a novel suture anchor (5), a suture (10) attached to the suture anchor, and a novel inserter (15) for deploying the suture anchor in bone whereby the suture will extend from, and be anchored to the bone. The novel suture anchor generally comprises a drill portion (35), a thread portion (30), and a suture attachment portion (75). The drill portion is disposed on a distal portion of the anchor and is adapted to penetrate the bone when the drill portion is pressed against the bone and the anchor is rotated about its longitudinal axis. The thread portion extends along at least a portion of the length of the anchor and is adapted to draw the anchor through the bone when the anchor is rotated.
Patent CA-2206691-A1 (CA)
Inventor: TASHIRO SHINTARO
IPC: A61K9/48
Filed: 1995-12-05
Abstract: Enrobage pour un médicament, composé au moins partiellement d'algues et/ou de varech ou d'extraits dérivés d'algues et/ou de varech, et résistant à l'acidité gastrique, mais pouvant être dénaturé par des substances alcalines se trouvant dans les intestins. Cet enrobage constitue avantageusement une capsule qui contient également un liant, ou, dans une variante, l'enrobage peut comprendre du sulfate de baryum ou autre diluant résistant aux acides.
Patent CA-2208519-A1 (CA)
Title: Viral vector complexes having adapters of predefined valence
Inventor: PAMPENO CHRISTINE
IPC: C12N15/867
Filed: 1995-12-20
Abstract: The invention concerns an improvement in the art of inserting and expressing foreign gene into eukaryotic cells. The invention particularly concerns methods and compositions whereby viral vectors can be used to insert and express foreign genes into specifically cells having particular differentiation antigens. A method of determining which differentiation antigens can be used is taught. The invention encompasses complexes of viral particles and adapters that cause the binding and internalization of the vector particles such that a gene of interest in the particle is expressed.
Patent CA-2211407-A1 (CA)
Inventor: NORDSTR M GERT
IPC: E01H10/00
Filed: 1996-01-23
Abstract: Cette invention concerne un dispositif permettant de chauffer et de transporter des matériaux particulaires tels que du sable ou tout autre matériau similaire. Ce dispositif comprend un conteneur (1), un système de chauffage (2), ainsi qu'un système de transport (3) du sable depuis le conteneur vers le site de déversement (4). Ce système est monté au-dessus de la partie inférieure (5) du conteneur (1) afin que le système de transport (3) puisse acheminer le sable jusqu'à un récepteur de charge (6), en particulier un véhicule de transport de charges, lequel est placé sous le site de déversement (4). Le système de transport (3) comprend un corps (7) dans lequel sont disposés des éléments de transport. Le système de chauffage (2) est conçu de manière à produire du gaz chauffé et à envoyer celui-ci dans une chambre située dans le corps, laquelle chambre permet de transférer la chaleur au sable.
Patent CA-2215988-A1 (CA)
Title: Device for pressure treatment of wood
Inventor: JOHANNISSON TOM
IPC: B27K3/10
Filed: 1996-04-12
Abstract: A device for pressure treatment of wood elements comprises a pressure chamber (1) for accommodating the wood elements (5a, 5b, 5c) which are to be treated. The pressure chamber also accommodates a pressure medium which surrounds the wood elements on more than one side and, at least before the pressurization, a secondary medium in the form of a fluid. When the pressure medium is pressurized, the wood elements are subjected to a multilateral pressure, whereby they are permanently compressed. Further, the pressure chamber is provided with means (11a, 11b) for controlling the quantity of secondary medium which penetrates into the wood during the treatment. These means may consist of evacuating valves (11a) or of casings (11b) which surround the wood elements and which are impenetrable to the secondary medium.
Patent CA-2216307-A1 (CA)
Inventor: JAMIL FAUZIA
IPC: C09K11/77
Filed: 1997-10-14
Abstract: A phosphor powder for producing a high resolution phosphor screen and a phosphor screen are provided. The phosphor screen comprises a substrate, an infrared-absorbing layer, and a phosphor layer coated on the infrared-absorbing layer, wherein the phosphor layer comprises a phosphor powder in which a substantial amount of particles in the powder have a particle size as measured in the longest dimension of greater than 0 and less than about 5 microns. The phosphor screen may also comprise a black, infrared-absorbing substrate with the phosphor layer coated on the substrate. The phosphor powder is formed by preparing a phosphor composition, sintering the composition to form ingots, grinding the ingots to form a powder wherein a substantial amount of particles in the powder have a particle size of greater than 0 and less than about 5 microns, reactivating the powder in an inert atmosphere to a temperature of from about 500°C to about 550°C, preparing a suspension of the powder and a nonreactive organic solvent, mixing the suspension to separate particles of the powder which partially fuse during reactivation and to break up large agglomerates of the powder in the suspension, decanting the suspension to at least partially separate the nonreactive inorganic solvent and the powder, and drying the powder to form the phosphor powder.
Patent CA-2216657-A1 (CA)
Title: Method for oximeter standardization and for reporting results
Inventor: SCHARLACK RONALD S
IPC: G01N21/27
Filed: 1996-03-28
Abstract: The present invention comprises methods of determining the performance of an absorbance spectrometer, and, in particular, of CO-oximeters. The methods comprise measuring the absorbance spectrum of a quality control sample and comparing it to a standard spectrum of that quality control. Instrumental error will be the primary factor contributing to the observed difference. The present method also provides techniques for converting the instrumental error manifested in the difference between the measured and standard quality control spectra into blood concentration values comparable to that of real blood.  Analysis of test samples on a spectrophotometer; and calibration of the spectrophotometer is also provided.
Patent CA-2218832-A1 (CA)
Title: Industrial part heater
Inventor: SCHWARZKOPF EUGEN
IPC: H05B3/42
Filed: 1997-10-22
Abstract: An electric part heater has a main body of highly heat-conductive material, an electrical heater element imbedded in the body, a jacket of poorly heat-conductive material surrounding the body, and a thermostat element imbedded in the body and having a measuring point.  A secondary body of poorly heat-conductive material is imbedded in the main body and surrounds the measuring point so that a response of the measuring point to temperature change of the main body is mediated by the secondary body.
Patent CA-2219717-A1 (CA)
Title: Cover for an edge mounted printed circuit board connector
Inventor: LWEE NAI HOCK
IPC: H01R12/50
Filed: 1997-10-30
Abstract: A cover is employed with an edge mount electrical header connector to secure theheader connector to a printed circuit board during soldering. The header connector includes plural electrical contacts supported in an insulative housing. The contacts include extending solder tails for engagement with solder pads of the printed circuit board. The cover includes an elongate insulative body for attachment to the header connector. The body of the cover includes gripper arms extending therefrom and being in spaced opposition to the extending solder tails. The solder tails and the gripper arms form a space therebetween for receiving an edge of the printed circuit board. The gripper arms and solder tails retain the printed circuit board edge so as to permit secure soldering of the solder tails to the solder pads of the printed circuit board.