baber/WOPTO huggingface dataset:
Patent CA-2206403-A1 (CA)
Title: Flush toilet bowl
Inventor: MATSUSHITA HIROYUKI
IPC: E03F7/00
Filed: 1995-12-27
Abstract: A water closet comprises a bowl portion (1) and a drain trap (2) formed contiguous to the bottom of the bowl portion, the drain trap (2) comprising a riser passage (22) extending upwardly obliquely from the bottom of the bowl portion, a first weir portion (27) formed on the upper end of the riser passage, a descending passage (23) extending downwardly from the first weir portion and a horizontal passage (24) extending substantially horizontally from the lower end of the descending passage and formed at an end thereof with a drainage port (25), the horizontal passage (24) being provided with a second weir portion (28) disposed between the lower end of the descending passage and the drainage port thereof to be bent upward, and a water storing portion (29) formed between the second weir portion (28) and the lower end of the descending passage, near which is formed a horizontal portion (26) to extend horizontally toward the horizontal passage (24).
Patent CA-2206917-A1 (CA)
Title: Electronic control for a variable delivery positive displacement fuel pump
Inventor: VEILLEUX LEO J JR
IPC: F04C14/26
Filed: 1997-06-04
Abstract: An electronic control for a variable delivery, positive displacement fuel pump includes a flow sensor located at the fuel outlet to the engine.  The flow sensor provides a signal, indicative of actual fuel flow to the engine, to an electronic engine control.  The electronic engine control compares actual fuel flow with desired fuel flow, and upon any difference therebetween commands an electrohydraulic servo valve to position a pump control actuator.  The pump control actuator controls the amount of fuel delivered by the pump.  Also, fuel flow upstream of the flow sensor is bypassed in a line to another section of the electrohydraulic servo valve.  The electronic engine control commands a small amount of fuel to be bypassed back to the pump inlet during normal operating conditions.  However, upon the occurrence of a transient condition, the electronic engine control causes more or less fuel to be bypassed back to the pump inlet.  In this way, improved transient response of the pump is achieved by the electronic control of the present invention.
Patent CA-2208286-A1 (CA)
Title: Retractable canopy
Inventor: HURST RONALD W
IPC: B60J7/06
Filed: 1997-06-19
Abstract: A retractable canopy and supporting structure for mounting onto the load bed of a vehicle wherein the supporting structure may be selectively slid along longitudinally extending guide rails on opposite sides of the load bed and wherein the primary supporting structure is sufficiently stable so as to resist one side of the primary support structure member from sliding along its corresponding guide rail without there being corresponding sliding movement of the opposite end of the primary structure member on the opposite guide rail when the primary structure member is urged longitudinally along the guide rails from only one side of the load bed, and wherein when the canopy is deployed over the load bed and the primary structure latched to the rearmost end of the load bed, the canopy is maintained taut over the supporting structure by resilient springs mounting the forward end of the canopy to the forward end of the load bed or to the vehicle cab.
Patent CA-2210462-A1 (CA)
Title: High gain ultraviolet photoconductor based on wide bandgap nitrides
Inventor: ZOOK J DAVID
IPC: H01L31/0248
Filed: 1996-02-26
Abstract: A photoconductor (10) has an active layer (20) of gallium nitride having approximately 1016 to 5 x 1016 net donor sites per cubic centimeter and is sensitive to UV radiation. This photoconductor has at least one of a sheet resistance in the approximate range of 10 4 to × 10 6 ohms/unit area and a relatively low level of photoluminescence in the range from about 430-450 nm when excited with light of energy higher than the bandgap energy of 3.4 eV. These criteria tend to define similar semiconductor materials which can form the active layer of an ultraviolet (UV) photodetector having the improved characteristics of a relatively low dark resistance, high sensitivity over at least a range of UV radiation intensity, and decreasing gain with increasing UV radiation.
Patent CA-2214282-A1 (CA)
Title: Process of and apparatus for collecting fibers
Inventor: PERROTTO JOSEPH A
IPC: D01F9/145
Filed: 1996-03-08
Abstract: The invention is a process of, and apparatus (10) for, collecting relatively straight blow spun fibers in a two-dimensional configuration. The process utilizes a venturi (40) to preclude the kinking and bending of the fibers until the fibers have substantially thermoset. A diffusion chamber (60) allows the fibers to be collected without entangling.
Patent CA-2218064-A1 (CA)
Inventor: ROZEN ELI
IPC: B42D15/10
Filed: 1996-04-12
Abstract: A method for making documents, in particular identifying documents, such as passports and identity cards, comprises the steps of providing a set of signals, particularly digital signals, defining an image to be printed on the document; providing a temporary substrate; depositing on said temporary substrate coloring matters, whereby to produce thereon said image, by the conventional laser printing method; provisionally setting said image; juxtaposing said temporary substrate with its face carrying said image in contact with the rear face of a transparent substrate; transferring said image from said temporary substrate to said transparent substrate, whereby the said image is applied to said transparent substrate rear face and is visible through said transparent substrate from the front face thereof; removing said temporary substrate; and binding said transparent substrate, by lamination, to other components of the document to be produced. When the document is in booklet form, the binding of the transparent substrate effected by juxtaposing it to a final substrate that is part of the booklet and laminating it in contact with said final substrate. When the document is a card, the method also comprises providing a card blank which comprises a front and back leaf, one or both of which are transparent, and laminating said leaves, whereby to produce a card, wherein at least one printed image is visible from its front face.
Patent CA-2218295-A1 (CA)
Title: Circuit d'excitation simplifie de commutateurs pour allumage inductif
Inventor: PENNELL ARTHUR J
IPC: F02P3/04
Filed: 1997-02-14
Abstract: L'invention concerne une forme simple de circuit d'excitation et de circuit de commande d'allumage pour commutateurs d'alimentation de bobines d'un système d'allumage inductif permettant de régler et de commander le courant primaire Ipo dans les enroulements primaires (@3) de bobines d'allumage (@2a, 2b) d'un moteur multi-cylindre présentant "n" commutateurs de puissance S1 à Sn. Le circuit d'excitation se compose de "n" diodes d'isolation ne présentant qu'un seul commutateur de commande commun, d'un comparateur (@ 10) et d'un circuit de déclenchement d'entrée commun fonctionnant conjointement avec un circuit de détection de courant à compensation partielle de température, et du comparateur afin de régler la durée de fonctionnement Tdw du commutateur de puissance pour alimenter et cesser d'alimenter séquentiellement les bobines d'allumage, selon ce que dicte un système d'allumage et de séquencement d'étincelles d'allumage.
Patent CA-2219581-A1 (CA)
Inventor: O'REILLY JOSEPH
IPC: A23L5/20
Filed: 1996-04-29
Abstract: A process for preparing a flavonoid extract from the leaves of ginkgo biloba comprising multiple distractions of the leaves of the ginkgo biloba with solvents wherein at least one of the extraction stages is a deterpenation step using a solvent of the formula RC(O)OR' wherein R and R' are individually lower alkyl.
Patent CA-2221244-A1 (CA)
Title: Intensity acoustic calibrator
Inventor: LARSON BRIAN G
IPC: H04R29/00
Filed: 1996-05-14
Abstract: An intensity acoustic calibrator (110) is disclosed including at least two waveguide channels (130, 134). A speaker (180, 184) adjacent each waveguide channel emits sound to develop a standing wave at the opposing end of the channel. The test microphone (138, 160) is positioned in the calibrator so as to be in acoustic communication with the waveguide channel so that the microphone can be calibrated respective to the standing wave. By having two separate waveguide channels (130, 134) and speakers (180, 184), the test microphones can be subjected to arbitrary magnitude changes and phase differentials. Additionally, a reference microphone (150, 172) may be positioned adjacent each waveguide channel to monitor the sounds generated by the speakers to ensure that the speakers are emitting sounds at the desired magnitude, phase, etc.
Patent CA-2226578-A1 (CA)
Title: Meltprocessible starch composition, a process for the preparation thereof and the use of the composition
Inventor: HAPPONEN HARRI
IPC: C08L1/02
Filed: 1996-07-10
Abstract: The invention concerns a biodegradable starch composition, a process for the preparation thereof, the use of the composition and a process for increasing the degradation rate of intermediate products manufactured from starch derivatives and/or products made therefrom under conditions of biodegradation. According to the invention the composition contains 5 to 99 wt-% of a plastisized starch derivative and 1 to 95 wt-% of a biodegradable fibrous material. The microstructure of the composition is discontinuous and formed by a phase containing the starch derivate and a phase containing the fibrous material and any porosity, and its impact strength is at least 10 % better than the corresponding values of a plastisized starch derivative. The composition may further contain 0.01 to 30 wt.% of a biodegradable polyester, such as polylactide, polycaprolactone or a cellulose ester. According to the invention, the biodegradable starch composition is prepared by esterification of starch with glycerol in order to form a mixture containing starch acetate and acetic acid and then the mixture is blended with a biodegradable fibrous material for producing a composition which has a discontinuous microstructure. The invention provides a melt processible composition having good water resistance and mechanical properties which can be regulated by changing the relative amounts and the qualities of the components of the composition.
Patent CA-2231796-A1 (CA)
Title: Method of controlling the phosphorus concentration in biological wastewater purification plants
Inventor: ENGEL FRIEDRICH
IPC: C02F3/12
Filed: 1998-03-11
Abstract: The invention relates to a method of controlling a biological wastewater purification plant, in which the wastewater is aerated in an activation tank in the presence of an activated sludge and, to influence the properties of the activated sludge, phosphorus is added under controlled concentration, which comprises measuring the phosphorus concentration in the activated sludge for the control of the phosphorus addition and controlling the phosphorus addition in such a manner that the phosphorus concentration in the activated sludge is greater than or equal to a lower limit and is less than or equal to an upper limit. By means of the method according to the invention, the effluent values of a biological wastewater purification plant can be optimized and the limit values in the effluent of a wastewater purification plant prescribed by the authorities can be complied with better than hitherto.
Patent CA-2232253-A1 (CA)
Title: High speed modular exponentiator
Inventor: POWELL GREGORY ALAN
IPC: G09C1/00
Filed: 1998-03-16
Abstract: A modular  exponentiator  is  adapted  to  receive  a  first communicated  signal  and derive  a  second  signal  therefrom by computation of a modular exponentiation of the form b ~ mod n based on the first signal.  The modular exponentiator divides the modular exponentiation according to the Chinese remainder theorem into first and second portions respectively having modulus values p and q of approximately half of an original modulus value n of the modular exponentiation.  Each portion of the modular exponentiation is  factored  into  respective  pluralities  of  smaller  modular exponentiations  having  precalculated  exponent  values.    The respective pluralities of smaller modular exponentiations are then multiplied together to provide respective intermediate products. The intermediate products are then recombined to yield the modular exponentiation result.
Patent CA-2236622-A1 (CA)
Inventor: FLORY ISAAC L IV
IPC: H05B41/04
Filed: 1998-05-04
Abstract: A reduced cycle ignitor circuit for a high intensity discharge lamp incorporating a thermally timed, cycled operation which provides intermittent starting pulses for the high intensity discharge lamp. The ignitor circuit comprises a capacitor and semiconductor connected in series with a ballast transformer.  The ignitor circuit further comprises a series connected resistor and thermostat, having thermally operated, normally closed electrical contacts, through which current is conducted to charge the capacitor.  The thermostat is thermally coupled to the resistor. During operation, current flows through the series connected resistor and thermostat and charges the capacitor to a breakover threshold voltage level of the semiconductor.  At that point, the semiconductor conducts and the energy stored in the capacitor is discharged through the semiconductor and a winding of the ballast which, through auto-transformer action, generates a high voltage pulse to start the high intensity discharge lamp.  The resistor heats the thermostat during the charging cycle which reaches a temperature at which the normally closed thermostat contacts open, which disables the ignitor circuit until the resistor and thermostat cool and the thermostat contacts close.
Patent CA-2236772-A1 (CA)
Title: Focusing-type calculating means
Inventor: LU SHU FANG
IPC: G01D5/347
Filed: 1998-06-02
Abstract: A focusing-type calculating device comprising a light source, a grating wheel, and a photo-detector. The input plane of the grating wheel has a ring-shaped lens to focus the light emitted from the light source. The output plane of the grating wheel has a plurality of tooth-shaped lenses perpendicular to the ring-shaped lens, which can focus the working beams after the working beams pass through the output plane, thus minimizing interference. The device can be used for detecting the position, speed and acceleration of a moving or rotating object such as a computer mouse.
Patent CA-2243590-A1 (CA)
Title: Float unit for controlling the filling level of liquid gases in vessels
Inventor: PAGANI ANGELA
IPC: F16K31/26
Filed: 1998-07-24
Abstract: A float unit for controlling the filling level of liquid gases in vessels, cylinders and the like, comprises a valve body which can be associated with a cylinder and defines a fork body whereto a float member is swingably i connected, the float unit further comprising a coupling element for removably coupling the float member to the fork body.
Patent CA-2247338-A1 (CA)
Title: Optical recording medium
Inventor: KAMBE EMIKO
IPC: G11B7/249
Filed: 1997-12-22
Abstract: An optical recording medium is provided in which a recording layer contains a salt-forming dye between an ion of an azo metal complex of the following formula (I) and an ion of a cyanine dye of the following formula (II), having a complex index of refraction in the wavelength region of recording light and/or reading light whose imaginary part k is up to 0.20, or at least one of azo oxovanadium metal complexes having an azo compound of the following formula (III) as a ligand and metal complexes having azo compounds of the following formulae (IV) and (V) as a ligand.      Recording and reading can be carried out at a conventional wavelength or a short wavelength of about 630-690 nm or both. (A-(~N-B)m ~ M1 (I) (see formula II) A-N=N-B       (III) (see formula IV) (see formula V) In formulae (I) and (III), A is an aromatic ring group having an active hydrogen-bearing group at a position adjacent to the diazo group or a nitrogenous heteroaromatic ring group having an oxovanadium-coordinatable nitrogen atom at a position adjacent to the carbon atom in the ring attached to the diazo group, and B is an aromatic ring group having an active hydrogen-bearing group at a position adjacent to the diazo group. In formula (I), m is equal to 1 or 2, and M1 is a center metal.        In formula (II), Q1 and Q2 each are a group of atoms forming a 5-membered nitrogenous heterocyclic ring which may have a fused ring, L is a methine chain, R1 and R2 each are an alkyl group.      In formulae (IV) and (V), X is an active hydrogen-bearing group, R1 and R2 each are an alkyl group, the total number of carbon atoms in R1 and R2 is from 2 to 8, R is a nitro group, and n is equal to 0 or 1.
Patent CA-2248952-A1 (CA)
Title: Stimulateur cardiaque a chambre double avec temporisation interchambres
Inventor: VERBOVEN-NELISSEN YVES
IPC: A61N1/362
Filed: 1997-05-15
Abstract: L'invention concerne un procédé et un appareil de détermination de l'origine d'un signal cardiaque dans le coeur d'un patient. Un stimulateur cardiaque comprend un agencement d'électrodes à plusieurs chambres dans lequel au moins deux électrodes sont positionnées de façon à détecter et/ou stimuler différentes chambres du coeur. Les électrodes commutent d'une configuration bipolaire à une configuration unipolaire afin de vérifier le point d'origine du signal cardiaque et de déterminer si la propagation du signal cardiaque a bien lieu. L'appareil permet une stimulation simultanée et temporisée des chambres gauche et droite.
Patent CA-2250933-A1 (CA)
Inventor: VAN ARDENNE ROBERTUS ANTHONIUS
IPC: B42D1/06
Filed: 1997-03-20
Abstract: Cover (1) for holding together sheets of paper, which cover is provided with one or two scored grooves (4) for forming a spine by folding over, so that the contents (8), in the form of the sheets to be held together, are enclosed between a front leaf (2) and a back leaf (6), the front leaf (2) being provided near the spine with an incision, such that a part or lip (7) which is attached to the spine or the back leaf, respectively, but is otherwise free, is formed, which part or lip is suitable for retaining the contents (8) while the remaining part of the front leaf (2) and the contents can be opened, characterized in that the lip (7), attached to the (first) score line (4), is formed in the corner region near the top edge (5), running from the score line (4) - or from the first score line - in the direction of the top edge (5).  Bundle of sheets of paper, intended to be folded together in two to form a booklet, optionally sealed with a cover, all the sheets being cut into in a corresponding manner, as indicated above.
Patent CA-2251180-A1 (CA)
Inventor: DA CUNHA OTALICIO PACHECO
IPC: A01F25/18
Filed: 1998-10-19
Abstract: This invention refers to a system to homogenize the distribution of the grain mass inside vertical and/or horizontal silos to eliminate the autoclassification, which occurs naturally in the filling of silos or barns. Therefore the invention is characterized in that it is based in the principle of splitting (10) the unique incoming flow (20) of grains (31), inside the silo (30), in multiple equal parts (11), opening the clearance exit and subdividing it into multiple equal exits (11), proceeding, in the same manner, to the splitting of impurities (32), mixing them in the grain mass (31) multidistributed inside the silo (30), thus making it homogeneous and without concentration or deterioration focuses (33).
Patent CA-2254444-A1 (CA)
Title: Cell line for producing repressor proteins
Inventor: GRAHAM FRANK L
IPC: C12N15/861
Filed: 1998-11-19
Abstract: Disclosed herein is a eukaryotic cell capable of replicating a recombinant expression vector that produces a heterologous protein, wherein the cell comprises a polynucleotide encoding a repressor protein that is capable of repressing production of the heterologous protein.
Patent CA-2254500-A1 (CA)
Title: Evaporative emission control system for providing fuel vapor to automotive engine
Inventor: WASKIEWICZ DAVID
IPC: F02D41/00
Filed: 1998-11-25
Abstract: An engine controller tracks purge system pressure within a vapor line extending from a fuel tank to a carbon canister and, in the event that pressure changes at an unduly high rate, operates to restrict the purging of vapor from a carbon canister.
Patent CA-2257272-A1 (CA)
Title: Low or sub-denier nonwoven fibrous structures
Inventor: VASSILATOS GEORGE
IPC: D04H3/14
Filed: 1997-06-05
Abstract: This invention relates to a new nonwoven material which has very high Frazier permeability while having substantial hydrostatic head liquid barrier properties. The material is comprised of fibers which are approximately one denier and finer fibers which have sufficient strength properties so as not to need a support scrim. The fabric is quite comfortable because of its breathability, quite soft because of its construction, and protective from liquids from rain to hazardous chemicals.
Patent CA-2258116-A1 (CA)
Title: Patient supporting method and device with a separately inflated heel support portion
Inventor: VIARD JEAN-LOUIS
IPC: A47C27/10
Filed: 1997-07-18
Abstract: The invention concerns a method of supporting the body of a patient, the method consisting in providing at least one support element, such as a mattress, subdivided into at least two closed, flexible, controlled-release regions that are inflatable with fluid under a pressure that is a function of the set penetration distance to which the body of the patient penetrates into the support element, namely at least one first support region for supporting the body of the patient other than in its heel region, and a second support region specifically for supporting the heel region. According to the invention, the second support region is inflated by tapping fluid from the first support region. This method makes it easy, in particular, to adjust the pressure as a function of the relative position of the patient on the support, of the patient's weight, of the patient's morphology, or else as a function of the particular needs of the treatment.
Patent CA-2258645-A1 (CA)
Inventor: ALBRECHT BERND
IPC: B65B61/18
Filed: 1997-06-17
Abstract: The invention relates to a process for production of a package which consists substantially of plastic film and has means for opening the package without the aid of a tool. The plastic film (10) is supplied from the roll to a cutting station in which cuts (11) are provided in a cycle adapted to the size of the final package, the width of said cuts being smaller than the width of the plastic film, and said cuts pass completely through the thickness of said plastic film. Sealing cover strips (15) which can also be removed are applied in the region of the cuts which they cover completely in each case. The resultant plastic film is subsequently processed further in a known manner to form the final package. The invention also relates to a package which can be subsequently produced.