baber/WOPTO huggingface dataset:
Patent CA-2157287-A1 (CA)
Title: Dispensing of flexible plastic fasteners from ladder shaped stock using a hollow needle
Inventor: DESCHENES CHARLES L
IPC: B65C7/00
Filed: 1994-02-28
Abstract: A device (11) for dispensing plastic attachments  (10A, 10B) of the type which are formed as part of a roll of continuously connected ladder stock. In one embodiment, the device (11) includes a pair of hollow slotted needles (35-1, 35-2) each having a tip (39-1, 39-2), a rear end (41-1, 42-2) and a longitudinal axis. A feed wheel (45) placed proximate to the rear ends (41-1, 41-2) of the pair of needles (35-1, 35-2), is used to feed individual attachments (10A, 10B) of a roll of ladder stock into said pair of needles (35-1, 35-2) through their respective rear ends (41-1, 41-2) at angles relative to the longitudinal axes thereof.  Once inserted into the needles (35-1, 35-2), an attachment (10A, 10B) is severed from the remainder of the ladder stock by a knife (65) and is then expelled from the needles (35-1, 35-2) by a pair of ejector rods (73-1, 73-2) movable along the longitudinal axes of the pair of needles (35-1, 35-2). The pair of needles (35-1, 35-2), the feed wheel (45), the knife (65), and the pair of ejector rods (73-1, 73-2) are all mounted on a vertically movable head member (2) driven by all electric motor assembly (27).
Patent CA-2157426-A1 (CA)
Title: Bacteria valve
Inventor: POWERS CARLETON A JR
IPC: A61M39/24
Filed: 1995-09-01
Abstract: A valve is provided for preventing backflow of bacteria and other unhealthy substances in a medical suctioning apparatus. The valve includes a chamber and a tubular member positionable in the chamber having one or more reversely lipped fins. Thechamber and tubular member provide a tortuous path that effectively limits backflow of bacteria and other unhealthy substances. Various modifications of the valve are disclosed including two, three and four piece valves. The valves are configured to be positioned between a medical suctioning unit and a patient-contacting part such as ejectors, evacuators, and medical yankauers. The valve shapes facilitate manufacture, and can be made of disposable or autoclavable materials.
Patent CA-2159198-A1 (CA)
Title: Oxidative method of purifying highly contaminated waste water
Inventor: GREGOR CARL-HEINZ
IPC: C02F11/06
Filed: 1993-04-01
Abstract: A process to purify waste waters using chemical oxidation and Fenton's reagent by the action in the acid range of hydrogen peroxide and iron(II) compounds and subsequent precipitation in the weakly acid to alkaline range of the iron(III) compounds, said process being characterized in that the sludge containing iron(III) accumulating besides the purified waste water is re-reduced chemically or electrochemically to iron(II) compounds and in that the sludge so reduced is fed back into the process. The process of the invention allows extensive purification of highly contaminated waste waters and furthermore problems arising with the treatment and elimination of the Fenton sludge can be circumvented.
Patent CA-2161155-A1 (CA)
Title: Carbon dioxide-based fluxing media for non-voc, no-clean soldering
Inventor: GAO GUILIAN
IPC: B23K35/36
Filed: 1995-10-23
Abstract: A flux formulation for use in the assembly of electronic circuit boards having components to be joined by soldering.  The formulation comprises a medium which acts as a carrier and solvent for the fluxing agent, which includes in a preferred embodiment supercritical carbon dioxide.  The formulation also includes a fluxing agent, being at least partially soluble in the supercritical carbon dioxide which serves to transport the fluxing agent before deposition thereof upon a soldering site.  The supercritical fluid is delivered through a nozzle to the circuit board, the supercritical condition being maintained until the supercritical fluid is discharged from the nozzle.  The fluxing agent at least partially loses its solubility in the fluid thereupon and is transported to the board by a stream of carbon dioxide gas.  Also disclosed is a method for delivering a flux formulation to the electronic circuit board.
Patent CA-2164854-A1 (CA)
Title: Liver function breath test using aromatic amino acids
Inventor: WAGNER DAVID A
IPC: A61K51/12
Filed: 1994-06-09
Abstract: A test for determining hepatic function has been developed. This test uses oral administration of isotope labeled phenylalanine or tyrosine, particularly 13C-phenylalanine, in a rapid breath test. In the preferred mode, the breath sample is analysed using a mass spectrometer and compared with a standard. The breath test provides a dynamic rather than static determination of hepatic function and can be used for both early and late stage liver problems.
Patent CA-2166592-A1 (CA)
Inventor: YAO LI-HO
IPC: A63H33/08
Filed: 1996-01-04
Abstract: A toy building block puzzle includes a first plurality of differently shaped tall hollow blocks which include lugs and slots on side walls thereof and protrusions and recesses on respective upper and lower sides thereof by which blocks of same or different shapes may be detachably interconnected to each other in vertical and horizontal planes.  A second plurality of building elements comprises of adapters shaped as rods to increase permutations of interconnection between the blocks of the first group.
Patent CA-2169499-A1 (CA)
Title: Device and method for the automatic coupling of a teeming ladle to one or more gas pipes
Inventor: FEITLER ALBERT
IPC: C21C5/46
Filed: 1996-02-14
Abstract: A device for the automatic coupling of a teeming ladle to several gas pipes, comprising a first coupling part connected to a gas supply and a second coupling part attached to the teeming ladle, wherein several gas outlets are arranged in the first coupling part and several gas inlets are arranged in the second coupling part. Each individual gas outlet can be closed by a closing element in the first coupling part, wherein, when being coupled to the second coupling part, this closing element is pressed inwards into the first coupling part and releases the corresponding gas outlet. To bring about self-cleaning of the coupling parts before they are coupled together, the closing elements are designed in such a way that, when the two parts of the coupling are coupled together, before the sealing union of the two coupling parts, a single gas outlet is first of all released, before the other gas outlets are released.
Patent CA-2170040-A1 (CA)
Title: Measurement of material composition and properties
Inventor: SMITH THOMAS B
IPC: G01R33/30
Filed: 1994-09-09
Abstract: A pulsed NMR analysis system (fig. 1) and process comprising an on-line system to extract a sample (S1-S2 of fig. 1) and establish digitized free induction decay curves (C), from which curve component functions are determining using regression techniques to correlate the curve components to the target nuclei, crystalline or amorphous, and to other material characteristics such as flow rates in plastic (MI and FRR for polyethylene and MF for polypropylene). The invention makes use of Principal Component Analysis (PCA) (46 of fig. 2) for deriving an orthogonal set of explanatory parameters and therefrom a set of vectors wherein collinearity is eliminated by Eigenvalue analysis (fig. 3).
Patent CA-2171469-A1 (CA)
Title: Method for the detection of molecules containing nucleotidic mismatches and location thereof, and application to detection of substitutions of deletions of bases in nucleotidic sequences
Inventor: MEO TOMMASO
IPC: C12Q1/6827
Filed: 1994-09-09
Abstract: Method for the detection and/or location of mutations or deletions in nucleotidic sequences by the formation of heteroduplexes between two double strand DNA types capable of generating mismatches at the mutation or deletion sites. The heteroduplexes are revealed by marking of each type of strand using different fluorescent molecules or are screened by passing over a support which specifically retains them.
Patent CA-2171884-A1 (CA)
Title: Apparatus for reducing moire interference in color cathode ray tubes
Inventor: PARK KWANG HO
IPC: H01J29/56
Filed: 1996-03-15
Abstract: An apparatus for reducing Moiré interference in a color cathode ray tube produced due to inconsistent spacing of scanning lines with respect to the dot pitches of a shadow mask during the display of video signals. The apparatus includes a sync signal dividing section for dividing by 2 horizontal and vertical sync signals separated from an input video signal, a vertical position control signal output section for outputting to a vertical position control section a voltage signal which varies according to a scanning Moiré control signal selectively inputted by a user, and a horizontal position control signal output section for outputting to a horizontal oscillation control section a voltage signal which varies according to a video Moiré control signal selectively inputted by the user, so that the vertical position of the even or odd scanning lines as well as the horizontal position of the even or odd image dots are adjusted to suppress the Moiré interference.
Patent CA-2173186-A1 (CA)
Inventor: LIN SHENGFU
IPC: H03M1/12
Filed: 1996-04-01
Abstract: The present invention relates to a method of using a computer to collect chemical signals directly from a chemical sensor. This method first converts output signals received from the chemical sensor into digital signals by using atransforming circuit and an analog-to-digital converter in cooperation with a control computer program executed in the computer; transfers the digital signalsto the computer and processes the digital signals in the computer in accordance with the type of the chemical sensor used.
Patent CA-2174880-A1 (CA)
Title: Sealed switch assembly for use with a rotatable valve shaft
Inventor: KRUEGER DONALD MARTIN
IPC: F23K5/00
Filed: 1996-04-24
Abstract: A gas burner valve switch having an annular rotor engaging the valve shaft for rotation with the shaft. An annular resilient seal in a groove on the rotor flange seals against the underside of the casing cover to prevent entry of foreign matter. The rotor is journalled for rotation in the housing which has spaced terminals which connect, via insulation displacement, with a pair of continuous spaced electrical leads laid in channels and extending through the housing. In one embodiment the rotor has a cam which actuates a moveable blade arm attached to one of the pair of terminals to effect closing against the other terminals. In another embodiment an annular wiper ring acts as a shorting bar between the terminal for switching upon user rotation of the rotor.
Patent CA-2176757-A1 (CA)
Title: Umbrella, Particularly Standing Umbrella
Inventor: BECHER KARL KLAUS
IPC: A45B23/00
Filed: 1995-11-07
Abstract: PCT No. PCT/DE95/01537 Sec. 371 Date Jul. 8, 1996 Sec. 102(e) Date Jul. 8, 1996 PCT Filed Nov. 7, 1995 PCT Pub. No. WO96/14773 PCT Pub. Date May 23, 1996In an umbrella, particularly a standing umbrella, sunshade, garden umbrella or similar, with a frame, a roof structure and a canopy, where the roof rods (5) are linked to a pole element (2) bearing a cap (3) and moveable in a telescopic manner relative to the vertical pipe (1), and a slide (4), on which stretchers (6) linked to the roof rods (5) act flexibly, is moveable along the vertical pipe (1), the cap (3) and the slide (4) moving in opposite directions during opening and closing of the umbrella, and with at least one additional stretcher (8) arranged flexibly above the slide (4) between the umbrella pipe (1) and a roof rod (5), the slide (4) being fitted with a locking device (12) with which it can be locked in its upper position and the canopy can be tensioned, it is envisaged that the locking device (12) works in conjunction with a retaining device (13) located on the cap (3) or the moveable pole element (2) to enable simple manual opening of the umbrella and stretching of the canopy, particularly for umbrellas with large diameters.
Patent CA-2179837-A1 (CA)
Inventor: YOSHIDA MASAHARU
IPC: G01S7/4911
Filed: 1996-06-25
Abstract: The present invention offers a light scanner which is compact and highly precise during high-speed operation, has a long lifespan, and is resistant to influence by external acceleration. Specifically, a light beam emitted from an optical source is separated into two light beams by means of a light beam separation means, and these light beams are deflected by a mirror on the scanner. One of the light beams is used for the object of usage, while the other light beam is made incident on a photo detector which outputs a signal based on the incident position of the light beam, in order to determine the deflection angle of the light beam based on vibrations of the mirror.
Patent CA-2180822-A1 (CA)
Title: Starch composite reinforced rubber composition and tire with at least one component thereof
Inventor: THIELEN GEORGES
IPC: C08K3/36
Filed: 1996-07-09
Abstract: The present invention relates to a rubber composition containing a starch/plasticizer composite and to pneumatic tires having at least one component comprised of such rubber composition. Such tire component can be, for example, its circumferential tread or other component of the tire.   The starch/plasticizer composite can be a composite of starch and plasticizer such as, for example, poly(ethylenevinyl alcohol) and/or cellulose acetate or any suitable plasticizer which results in such starch/plasticizer composite having a melting point below that of the starch alone, and particularly below about 160°C, and to thereby enable the starch to be more processable with conventional elastomer composition processing equipment.   In the practice of this invention, a rubber composition comprises at least one elastomer, a starch/plasticizer composite, optionally at least one coupler and, optionally, at least one of carbon black and silica reinforcement alone or in conjunction with another reinforcing or non-reinforcing filler.
Patent CA-2187416-A1 (CA)
Title: Piezoelectric ink jet printing system
Inventor: LOPEZ JUAN E
IPC: B41J25/304
Filed: 1996-10-08
Abstract: A piezoelectric ink jet printing system including a primary ink supply and a plurality of piezoelectric ink jet printhead assemblies. Each assembly comprises a housing, a piezoelectric ink jet printhead in the housing, a secondary ink supply attached to the housing close to the printhead, and a short ink supply line for delivery of ink from the secondary ink supply to the printhead. The system further includes a pump for pumping ink from the primary ink supply to the secondary ink supply of each printhead assembly. Each printhead assembly is operable independently of the other printhead assemblies and are selectively movable with respect to the other printhead assemblies and with respect to the primary ink supply so that each printhead assembly can be positioned at a desired location without regard to where the other printhead assemblies are to be positioned and without regard to where the primary ink supply is positioned.
Patent CA-2188247-A1 (CA)
Inventor: TANAKA SHIRO
IPC: A23L21/15
Filed: 1996-10-18
Abstract: A soluble enriched frozen or refrigerated calcium preparation comprising calcium citrate.malate obtained by reacting citric acid, malic acid and a calcium salt under the specific conditions to obtain calcium citrate.malate, refrigerating or quickly freezing it, and if necessary drying the frozen product.
Patent CA-2191665-A1 (CA)
Inventor: VAN CUREN JOHN
IPC: C08F220/12
Filed: 1996-11-29
Abstract: Soil resistant polymers, and methods for their manufacture are provided. These polymers are aqueous emulsion polymers suitable for use in exterior coatings, such as elastomeric wall coatings, caulks and roof coatings. These polymers exhibit improved dirt-pick up resistance during exterior exposure while maintaining proper adhesion and resistance to cracking.
Patent CA-2191801-A1 (CA)
Inventor: GAGNE SHELDON DOUGLAS
IPC: F03B3/00
Filed: 1996-12-02
Abstract: This invention is a new type of power turbine.  The turbine will generate a significant torsion forces from wind or water currents.  That force may then be used to generate electrical or mechanical power. The turbine is built on the horizontal plane.  Its principle components are panels on opposing spokes which complement each others effort through a direct mechanical linkage between the panels.  As one panel catches the wind/water current on one side of the wheel, it rotates opening more to the current to maximize its exposed surface area.  In the process, the panel on the opposing spoke closes (or rotates for single panel design) to minimize its drag.  The synergistic system of the wing or water turbine using bi-fold or single panels has the ability to create a significant torque about a central shaft.  This turbine is symmetrical, and functions independent of the wind or water current direction.  There are three basic designs.  Bi-fold panels which stand vertically, by-fold panels which lay horizontally, and single panels which lay horizontally.
Patent CA-2193150-A1 (CA)
Title: Network restoration method
Inventor: ESLAMBOLCHI HOSSEIN
IPC: H04B10/08
Filed: 1996-12-17
Abstract: Repair of a broken cable (12 1) is effectuated with reduced down time by first automatically establishing the location where the cable is broken. Once the location of the break in the cable is established, then the location of each of a plurality of repair technicians (16 1-16 3) is automatically established. Thereafter, processor (20) accesses a data base (22) information about the availability of each technician, the technicians equipment, and skill. From the information in the data base, as well as from information regarding each technicians proximity to the broken cable, the processor (20) selects one or more technicians and thereafter automatically dispatches the selected technicians to the site of the broken cable to complete the necessary repairs.
Patent CA-2194131-A1 (CA)
Inventor: BROILLET MICHEL
IPC: B29B9/00
Filed: 1996-12-30
Abstract: The  height positioning of the rotor (4) and thus the  play  between  the wings (3) of the rotor and the sieve (5) of the machine are adjustable by means of an adjusting  system  (20 - 26), even during operation of the  machine.    The  drive of the rotor (4) by a belt (19)  allows  to omit gears as well as an oil bath for the  drive.  The risk of a contamination of the granu-lated  material  by  residues  is  thus obviated.  The sieve  (5)  is supported on a retaining ring (6) which allows  to  adjust  the  height of the sieve in such a manner  that  the internal surface of the sieve is al-ways  at the same position independently of the thick-ness  of the sieve.  It is thus possible to adjust the play between the sieve and the rotor with precision.
Patent CA-2196026-A1 (CA)
Inventor: STEBNICKI JAMES C
IPC: B65G17/38
Filed: 1997-01-27
Abstract: A sprocket formed by extrusion so as to have a drive surface extending along the entire length of a conveyor chain drive is disclosed.  The sprocket is configured to be used in a single unit wherein the sprocket is made from a selected extrudable material such as ultra high molecular weight polyethylene.  The sprocket is further configured to have optional endcaps used so as to provide stop means for preventing lateral movement of a conveyor chain across the sprocket.     The drive surface of the sprocket can be configured to custom fit a selected conveyor chain and the configuration remains substantially unchanged throughout the useable life of the sprocket.  The extruded sprocket thus obviates the need for adjustment or refitting of the sprocket to the conveyor chain during use.  The extrusion die determines the configuration of the drive surface or teeth of the sprocket.
Patent CA-2207538-A1 (CA)
Inventor: NEWTON CURTIS J
IPC: H04L12/56
Filed: 1997-06-11
Abstract: A Virtual Path Group (VPG) technique that utilizes network elements (NEs), i.e.,nodes, that are visible to ATM specific defects, and allows for fast ATM virtualconnection/restoration with a minimum of processing.  This is realized by employing a Virtual Path Group transport architecture comprises at least one (1) working route, one (1) protection route, and VPG bridge and selector functions at each end of the routes. It is applicable to 1+1, mesh and ring protection switching and is extensible to any virtual connection segment or end-to-end network (cross-subnetwork) virtual connections, and extensible to 1:1 and M:N protection switching. Additionally, the protection switching arrangement of the invention includes an architecture for the Virtual Path Group (VPG) concept in which the associations among individual ATM virtual channels (VP/VCs) and VPGs are maintained entirely within the network element management function. This allows VPG support to be added to ATM systems and networks with minimum change from current ATM standards. In particular, no changes are required to the Virtual Path Identifier/Virtual Channel Identifier (VPI/VCI) addresses carried within each ATM cell across ATM interfaces. Further, defect type indication is realized via a new, for example a F4, segment level Operation and Maintenance (OAM) cell, to initiate the appropriate restoration action downstream. The technique differentiates between physical layer and ATM layer defects. An algorithm is employed in an embodiment of the invention todetermine appropriate VPG protection switch and signaling actions, driven by the F4 defect type OAM cells. Moreover, for interworking with physical layer protection (e.g. SONET Bi-Directional Line Switched Ring (BLSR)), a VPG protection holdoff function is employed at the VPG protection selector. A technical advantage of this protection switching invention is that it provides extremely fast protection switching of an extremely large number of ATM virtual connections.
Patent CA-2207726-A1 (CA)
Title: Device for conducting electrochemical measurements in glass or salt melts
Inventor: PLESSERS JAQUES JOSEF
IPC: G01N27/30
Filed: 1997-06-13
Abstract: A device for conducting electrochemical measurements in glass or salt melts has at least one indicator electrode and one reference electrode arrangement. In order to be able to conduct very exact measurements, the tip of the indicator electrode intended to be immersed in the melt is constructed of a noble metal or noble metal alloy with at least one another noble metal, preferably iridium or an iridium alloy with other noble metals, and is mounted gas-tight in a heat-resistant tube. The indicator electrode is passed through the heat-resistant tube.
Patent CA-2211205-A1 (CA)
Title: Switchgear with improved ventilation
Inventor: FAHEY PHILLIP J
IPC: H02B1/56
Filed: 1997-07-21
Abstract: An arrangement capable of being assembled with either an existing installed electrical equipment enclosure or during the fabrication and assembly of the electrical equipment enclosure is provided that increases the ventilation characteristics of the electrical equipment enclosure and provides desirable tamper resistance. The electrical equipment enclosure includes at least one sidewall, at least one access panel carried by the sidewall, at least one support member spanning portions of the sidewall, and a roof being carried above the sidewall and the access panel. The sidewall, the access panel, the roof and the support member including predetermined turned edges forming flanges and being assembled so as to define predetermined passageways there-between which provide predetermined ventilation characteristics and tamper resistance characteristics. The arrangement includes features for increasing the spacing of the roof from the sidewall and the support member when assembled with the electrical equipment enclosure and facilities for affixing to the support member and extending along and therefrom to resist tampering via the forming of a wire trap. In a specific arrangement, the roof includes threaded studs extending therefrom which extend through the support member to fasten the roof. For field retrofit installation, the spacing feature is provided by a spacer/extender member that includes a widened base portion and a sleeve portion having internal and external threads, the internal threads threadingly receiving the roof studs.