baber/WOPTO huggingface dataset:
Patent CA-2019173-C (CA)
Title: Apparatus for producing layered tubes or rings
Inventor: WARD BRIAN
IPC: B65B9/18
Filed: 1990-06-18
Granted: 1998-07-14
Abstract: An annular container mounted at the base of a passage between a layering tube and a central mandrel is charged with a layered tube of flexible tubing delivered over a floating mandrel when coaxially in contact with mandrel by driving rollers coacting with pinch rollers on the floating mandrel.  The tubing passes over the mandrel and gathers in the layering tube while being compacted by two sets of shoes reciprocated 180° out of phase by rotating discs and connecting rods. When sufficient tubing has been delivered the floating mandrel is raised to enable a hot wire to pass between the mandrels to sever the tubing.  The layering tube and central mandrel with the container can then be carried by a turntable through further stationary positions where the layered tubing is further compressed by reciprocable rings, a lid is put on the container to form a cassette and the cassette is discharged.
Patent CA-2020046-C (CA)
Title: Latch needle for machines producing knit goods
Inventor: SCHULER BERNHARD
IPC: D04B35/04
Filed: 1990-06-28
Granted: 1993-04-06
Abstract: ABSTRACT OF THE DISCLOSURE A latch needle for machines producing knit goods includes a needle shank having a slot, a needle head, and a latch.  The needle shank has a first longitudinal plane of symmetry and the slot has a second longitudinal plane of symmetry.  The latch is pivotably supported in the slot in the needle shank so as to be pivotable about a latch axis extending transversely to the second longitudinal plane of symmetry of the slot.  The second longitudinal plane of symmetry intersects the first longitudinal plane of symmetry at an acute angle.
Patent CA-2021545-C (CA)
Inventor: SEGURA JOHN S
IPC: C02F1/00
Filed: 1990-07-19
Granted: 1998-06-30
Abstract: Efficient control of the pH of a flowing alkaline wastewater stream is accomplished by monitoring the pH of the flowing stream, generating a signal in response to the pH monitored, and injecting CO2 as necessary to reduce the pH.  High pressure liquid CO2 is supplied to a proportional control valve which is operated in response to the signal to change the high pressure CO2 fluid to an intermediate pressure CO2 fluid in a manner so as to significantly reduce its density by creating a significant gaseous fraction.  This lower density CO2 fluid is supplied to a spring-loaded injector having an orifice in communication with the flowing stream.  The intermediate pressure is above the pressure at which the injector opens whereby the lower density CO2 fluid is injected into the flowing stream, allowing particularly precise control to be achieved.
Patent CA-2027685-C (CA)
Inventor: TAKAO KENJI
IPC: B05D3/10
Filed: 1990-10-15
Granted: 1998-12-29
Abstract: Organic composite coated steel strips having improved corrosion resistance, weldability and coating adherence are obtained when an organic composite layer is applied to a chromate layer on a zinc or zinc base alloy plated steel substrate.  The chromate layer containing up to 70% of Cr 6+ based on the total chromium weight is coated in a weight of 5 to 500 mg/m2 of Cr.  The organic composite layer is formed to a dry weight of 0.2 to 3.0 g/m2 from a coating composition comprising (A) a silica sol having silica dispersed in an organic solvent with a water content of up to 3.0%, the silica having an organic deposit on its surface in an amount of up to 5.0% of C based on the total silica weight, the silica having an average particle size of 0.05 to 3.0 µm and a specific surface area of 50 to 800 m2/g, and (B) an organic resin binder having a number average molecular weight of at least 2,000.  The coated strips are suitable for use as automobile bodies by press forming.
Patent CA-2029255-C (CA)
Title: Sealing means for a thermostat
Inventor: KUZE YOSHIKAZU
IPC: G05D23/02
Filed: 1990-11-02
Granted: 1998-10-27
Abstract: A thermostat has a frame having a valve seat, a rod secured to the frame, a guide member slidably mounted on the rod, and a valve secured to the guide member.  On the rod, a tubular sealing member is slidably mounted.          The sealing member has a tubular body, a base portion, a closed head portion, and a plurality of annular grooves or annular projections formed in an inner wall of the body.  The base portion is secured to the guide member, and the head portion is engaged with an end of the rod.
Patent CA-2041002-C (CA)
Title: Concentration measuring apparatus and method
Inventor: KIMBELL CHRIS L
IPC: G01N21/78
Filed: 1991-04-23
Granted: 1996-06-04
Abstract: A concentration measuring apparatus is provided having a fluid sensing means, an optic transmission means, a signal processing means, and an interface means. The fluid sensing means comprises a reflective sensing media in a self-contained cassette. The cassette is operationally associated with a sample chamber. The cassette advances the reflective sensing media by a motor which is driven by the signal processing means. The optic rneans comprises a fiber optic line which is partially associated with a lamp and partially associated with a photocell. Light having a wave length in a specified range originates from the lamp, passes through a portion of the fiber optic cable and is cast upon the reflective sensing media. The alternate portion of the fiber optic cable receives the reflected light from the reflective sensing media for transfer to the photocell. A signal is generated by the photocell representative of the change of reflectivity of the light from the reflective sensing media. The signal from the photocell is accepted by the signal processing means. The signal processing means contains an amplifier, an analog to digital converter, a computer and associated controls. The interface means is associated with the signal processing means. The interface means comprises a display, a 4-to-20 milliamp card and remote, explosion-proof switches for operator interaction with the concentration measuring apparatus. Also, the interface means is the link to an outside printer, an outside analog recorder as well as an outside host computer.
Patent CA-2041657-C (CA)
Title: Division method and apparatus including use of a z-z plot to select acceptable quotient bits
Inventor: ADILETTA MATTHEW J
IPC: G06F7/52
Filed: 1990-02-16
Granted: 1994-02-22
Abstract: DIVISION METHOD AND APPARATUS INCLUDING USE OF A Z-Z PLOT TO SELECT ACCEPTABLE QUOTIENT BITS                     ABSTRACT OF THE DISCLOSURE           An optimized division circuit and a method of implementing the circuit includes the steps of determining a Z-Z plot relationship which represents a relationship between a first divisor ratio proportional to a range of previously determined remainder values divided by the divisor and a second divisor ratio equal to a range of succeeding remainder values divided by the divisor. A complete look-up table is automatically built from the Z-Z plot relationship which includes, for each different valid combination of divisor and next remainder values, either a corresponding quotient digit or a DON'T CARE indicator. A state value, used in the logical implementation of the circuit, is then assigned to each different quotient digit. The circuit includes a divisor multiple formation circuit, a quotient determining circuit and a quotient assimilation circuit. The divisor multiple formation circuit includes a divisor multiple multiplexer. The quotient determining circuit includes a next partial remainder determining circuit and a next quotient digit selection circuit. The quotient assimilation circuit subtracts negative values of quotient digits from positive values to determine a final quotient value.
Patent CA-2044321-C (CA)
Title: Process for controlling alloy fractionation
Inventor: LAFORCE ROGER W
IPC: G03G5/08
Filed: 1991-06-11
Granted: 1997-03-18
Abstract: Disclosed is a process for treating particles of selenium alloy to reduce fractionation when the particles are subsequently vacuum evaporated onto a substrate which comprises (1) heating particles of an alloy of selenium and an alloying component selected from the group consisting of tellurium, arsenic, and mixtures thereof while said particles are exposed to oxygen; (2) exposing the particles to water vapor; and (3) subjecting the particles previously exposed to oxygen and water vapor to a vacuum. Also disclosed is a process which comprises (1) providing particles of an alloy of selenium and an alloying component selected from the group consisting of tellurium, arsenic, and mixtures thereof; (2) forming selenium oxide on the surfaces of the particles; (3) converting the selenium oxide on the particle surfaces to selenious acid; and (4) removing the selenious acid from the particle surfaces.
Patent CA-2053155-C (CA)
Title: Flexible container and method of fabricating the same
Inventor: WATANABE SUMIO
IPC: B65D88/16
Filed: 1991-10-10
Granted: 1995-05-30
Abstract: In a flexible container, there is provided three or more approximately rectangular main sheets, and a rectangular inlet sheet and outlet sheet are provided on an imaginary line passing approximately along the longitudinal centerline of each of the main sheets.  One end of each of the inlet sheet and the outlet sheet is sewed to an end of the main sheet corresponding to the one end, and the other end of each of the inlet sheet and the outlet sheet is projected away from the main sheet in the direction along the imaginary line.  The imaginary lines of assembly sheets each constituted by the three types of sheets conform to one another; opposed surfaces of the adjacent assembly sheets are brought into abutment with each other; and outer side edges of the adjacent assembly sheets are sewed together.
Patent CA-2053952-C (CA)
Title: Disposable wearing article of pants type
Inventor: NOMURA HIRONORI
IPC: A61F13/15
Filed: 1991-10-22
Granted: 2003-01-07
Abstract: A disposable wearing article of pants type having a front body and a rear body comprising respectively at least a liquid-permeable topsheet and a liquid-impermeable backsheet, and elastic members along a waist-hole and respective leg-holes. The front and rear bodies are attached together along their laterally opposite side edges.      The longitudinally opposite ends of the respective elastic members are located on the opposite side edges of the front and rear bodies, and the opposite side edges of the front. and rear bodies are intermittently attached together so as to avoid the elastic members.
Patent CA-2058408-C (CA)
Title: Remote postage meter resetting by facsimile communication
Inventor: SCHULZ KENNETH A
IPC: G07B17/00
Filed: 1991-12-23
Granted: 2000-02-22
Abstract: A system and method for the recharge of postage meters.      A request for recharge of a postage meter is transmitted to a remote location as a facsimile image. The information in the request is extracted using OCR or similar techneques and transmitted to a data processing center which verifies the request and, if verified, returns a unique code which will recharge the requesting meter. The code is transmitted to the requesting meter as a second facsimile image.
Patent CA-2059710-C (CA)
Title: Integral pivot damper blade
Inventor: HEIL EUGENE J
IPC: F24F13/10
Filed: 1992-01-20
Granted: 2002-07-02
Abstract: A damper blade is constructed with a laterally extending, rounded rib and with integral journals on opposite ends of the rib that form bearing surfaces when the blade is journaled in openings in the frame of a damper assembly. The construction provides for convenient manufacturing from a blank without the addition of hardware for mounting the blade in a damper assembly.
Patent CA-2063558-C (CA)
Title: Portable low power computer
Inventor: ANGLIN NOAH L
IPC: H03M11/14
Filed: 1990-06-28
Granted: 2000-08-15
Abstract: A portable battery powered computer (110a and 110b) includes several features to make the computer small in size and low in power consumption, while providing the functionality of a full sized computer.
Patent CA-2076658-C (CA)
Title: Hyperglycemic compositions
Inventor: YOUNG ANDREW
IPC: A61P3/08
Filed: 1992-01-10
Granted: 1996-09-03
Abstract: Compositions having amylin or an amylin agonist and a glucagon compound, particularly peptide compounds for the control of glucose production in mammals are provided. The compositions are useful in the treatment of hypoglycemia, including acute hypoglycemic conditions such as those brought on by insulin overdose and the overuse of oral hypoglycemic agents.
Patent CA-2078592-C (CA)
Title: Coin operated vending machine
Inventor: SCHWARZLI JOSEF W
IPC: G07F11/24
Filed: 1992-09-18
Granted: 1998-05-05
Abstract: An improvement in a coin operated vending machine for vending bulk articles comprises means for preventing loose articles at the entrance to the dispensing aperture.  The means comprises a resilient rolling member, extending across an entry notch to a housing shielding the aperture, and rotating in a direction opposite to the direction of revolution of an advancing dispensing wheel, thus gripping and ejecting bulk articles in the vicinity of the entry notch.
Patent CA-2081041-C (CA)
Title: Camera field of view indicator
Inventor: BEECHER ROBERT LOUIS
IPC: H04N7/14
Filed: 1992-10-21
Granted: 1996-08-06
Abstract: A two-way video telephone station includes a television screen for displaying an image transmitted by a distant party to a telephone conversation, a video camera for electronically photographing a human subject and periodically transmitting his picture to the distant party, and position-indicating apparatus for keeping the subject within the camera's field of view.  The position-indicating apparatus includes a pair of light-emitting diodes (LEDs) - one on each side of the camera.  The LEDs are visible to the subject when he is out, or almost out, of the camera's field of view.  Because the LEDs can only be seen when the subject needs to take corrective action, they act as passive restraints that are completely unnoticed when the subject is properly positioned.  Red LEDs are used to indicate that movement should stop if the subject wishes to be centered in the picture transmitted to the distant party. In an alternate embodiment of the invention, a third LED is added which is green in color and is only visible to the subject when he is within the camera's field of view.  Advantageously, the subject sees yellow light when he is at the edge of the camera's field of view.
Patent CA-2083960-C (CA)
Title: Roll press
Inventor: SCHIEL CHRISTIAN
IPC: D21F7/00
Filed: 1992-03-26
Granted: 1996-04-02
Abstract: The axes of a first press roll (1) and of a second press roll (3) lie in a press plane (E).  Each of the press rolls has a journal pin (2) and (4) respectively.  The first press roll is supported in a first bearing pedestal (5).  The second press roll rests in a second bearing pedestal (6) which is coupled to the first bearing pedestal (5) by means of flexurally soft tension bars (7, 8).  In the unloaded condition of the roll press, the second bearing pedestal (6) rests on the first bearing pedestal (5).  In the loaded condition, play (p) is established, however, between the bearing pedestals (5 and 6) so that the bearing pedestals (5 and 6) are displaceable relative to each other in axial direction.
Patent CA-2084366-C (CA)
Inventor: BUSH JAMES W
IPC: F04C23/00
Filed: 1992-12-02
Granted: 1995-05-16
Abstract: Co-orbiting scroll members are maintained in a fixed angular relationship.  Each of the scroll members coacts with a common anti-rotation structure which controls orbiting motion between the scroll member.  A second anti-rotation structure limits one of the scroll members to orbiting motion with respect to the crankcase.  The scroll members orbit in orbits of different radii.
Patent CA-2084881-C (CA)
Inventor: CUNNINGHAM JOHN
IPC: C12N1/20
Filed: 1991-06-06
Granted: 1998-01-06
Abstract: Une source d'éléments nutritifs à libération contrôlée est ajoutée à faible concentration dans un milieu de biorestauration pour favoriser la croissance et l'activité des microorganismes et accroître ainsi l'efficacité de la biorestauration, c.-à-d. l'élimination des contaminants environnementaux.
Patent CA-2086408-C (CA)
Inventor: BLAKE FREDERICK H
IPC: H05B37/03
Filed: 1992-12-29
Granted: 2002-05-28
Abstract: An anti-cycling device for high pressure sodium lamps detects an abnormal cycling condition by using a fiber-optic cable that extends between an anti-cycling controller board and the lamp itself. An outer end of the cable is arranged so that light emitted by the lamp will be transmitted to the controller board. A photocell mounted on the controller board, at the other end of the cable, transmits a variable magnitude electrical signal to the circuitry on the controller board.      The signal varies in accordance with light being transmitted or not transmitted through the cable, as the case may be, corresponding to a cycling condition. In this manner, the controller board is able to detect a cycling condition, and thereby cause the power supply to the lamp to be cut off.
Patent CA-2088934-C (CA)
Title: High contrast distorted helix effect electro-optic devices and tight ferroelectric pitch ferroelectric liquid crystal compositions useful therein
Inventor: WAND MICHAEL D
IPC: C07D213/30
Filed: 1993-02-08
Granted: 2003-06-03
Abstract: High-contrast electro-optic device contain non-surface stabilized FLC cells which retain a helical diameter (~) structure and exhibit a change in optical anisotropy as a function of the magnitude of an applied electric field or driving voltage. The FLC cells incorporate chiral ferroelectric liquid crystals which exhibit a ferroelectric phase and a chiral nematic (N*) phase at temperatures above the ferroelectric phase and comprise uniformly spaced electrode-containing plates between which the FLC is aligned. The cell is provided with means for detecting the change in optical anisotropy in the FLC induced by the application of the electric field.
Patent CA-2090783-C (CA)
Title: Method and device for drying paper
Inventor: ILMARINEN ANTTI
IPC: D21F5/14
Filed: 1993-03-02
Granted: 1998-05-19
Abstract: A method and device in the drying of paper, especially of fine paper or newsprint is disclosed.  A paper web to be dried is passed over a mantle face of a large-diameter flow-through cylinder.  On the flow-through cylinder, a set of drying-gas jets is applied to the free outer face of the web through a nozzle arrangement.  Water is evaporated outward from the outer part of the web by means of the set of drying-gas jets.  The water vapor thus evaporated is removed through spaces in the blowing-on hood.          By means of the set of drying-gas jets, the interior of the web to be dried is also heated.  The mantle face of the flow-through cylinder is cooled by means of a medium flow.  Water that has been vaporized out of the web and that has been condensed onto the cooled faces is sucked by means of negative pressure present in the interior of the flow-through cylinder.
Patent CA-2095259-C (CA)
Title: Road compacting apparatus
Inventor: ROSSBURGER PETER
IPC: E01C19/27
Filed: 1993-04-30
Granted: 1995-08-29
Abstract: In general,  apparatuses or machines for  compacting the shoulders of roads include a plurality of wheels in side by side  relationship,  which  are merely rolled over  the  gravel shoulder  of a road.   Such machines rely on the weight of  the wheels to effect compacting.   An apparatus for effecting  more efficient  compacting  includes  a frame for  connection  to  a towing  vehicle,  a  fixed arm extending  rearwardly  from  the frame,  a  pivot arm pivotally connected to the fixed  arm  for limited rotation around an axis perpendicular to the  direction of  travel of the apparatus,  crossbars pivotally connected  to the  pivot arm for limited rotation around an axis parallel  to the  direction  of  travel of the  apparatus,  a  plurality  of vertical   arms  connected  to  the  crossbars  and   extending downwardly   therefrom  for  pivotally  supporting  axles   for rotation around axles perpendicular to the direction of travel, and a wheel mounted on the outer end of each axle,  whereby the wheels  are  caused to wobble as they are drawn over  a  gravel shoulder to effect efficient compacting of the gravel.
Patent CA-2096739-C (CA)
Inventor: PURCEL DAVID E
IPC: G01F23/02
Filed: 1992-09-23
Granted: 1997-12-16
Abstract: A sanitary sight indicator (10) for viewing the contents of a production process is provided. The sanitary sight indicator includes a body (14), an optical unit (16), and a sanitary connection (18) between the body (14) and the optical unit (16). The body (14) includes a process-interfacing portion (32) which is adapted to interface with the production process and an optical-interfacing portion (30) which interfaces with the optical unit (16). The optical unit (16) includes a viewing portion (50) for viewing the contents of the production process and a body-interfacing portion (56) which interfaces with the optical-interfacing portion (30) of the body (14). The sanitary connection (18) includes a sanitary gasket (20) having a substantially flat annular portion (62), and first and second annular projections (64, 66) which are approximately semi-circular in cross-sectional shape and which extend outwardly from opposite sides of the annular portion (62). The sanitary connection (18) further includes a sanitary-gasket groove (70, 72) in each of the optical unit-interfacing portion (30) and the body-interfacing portion (56). Each of the sanitary-gasket grooves (70, 72) includes a flat surface (74) supporting one of the annular porjections (62) of the sanitarygasket and a channel (76) supporting one of the annular projections (62) of the sanitary gasket (18). Such a sight indicator (10) may be in the form of a "sight flow indicator" for installation in a process line or a "sight window" for installation on a process tank.
Patent CA-2097194-C (CA)
Title: Polyphase switched reluctance motor
Inventor: HENDERSHOT JAMES R
IPC: H02K29/06
Filed: 1991-11-22
Granted: 1997-04-22
Abstract: A switched reluctance motor driven by a polyphase source includes a stator (3) having a yoke (6) and a plurality of evenly spaced salient poles (9, 10) distributed about the yoke (6) and a rotor (1) mounted for rotation relative to the stator (3) having a plurality of unevenly spaced salient poles (5). The geometry of the stator (3) and rotor (1) is such that each of the stator poles (9, 10) is separated from an adjacent stator pole (9, 10) by an angle a1 and the poles (5) of the rotor (1) are alternately spaced from adjacent rotor poles (5) by angles a1 and a2. Windings (7) associated with the poles of the stator are connected to be driven by a polyphase source such that two phases (A, B) of the source are energized simultaneously. The simultaneous energiza-tion of two phases results in pairs of adjacent stator poles being magnetized with opposite polarity, thereby forming a mag-netic circuit (36) whose path includes only the portion of the yoke bridging the two adjacent stator poles of a pair. The motor of the invention provides substantially improved torque performance relative to a conventional switched reluctance motor of the same size, while also providing improved efficiency.
Patent CA-2104635-C (CA)
Inventor: SEBAG HENRI
IPC: A61K8/00
Filed: 1993-08-23
Granted: 2004-11-23
Abstract: Composition for treating acne which contains a dispersion of ionic or nonionic amphiphilic lipid vesicles, the vesicles containing, in the lipid phase, at least one salicylic acid derivative of formula (I): <IMAGE> in which R represents a linear or branched C11-C17 alkyl radical and R'1, R'2, R'3, which are identical or different, represent a C1-C18 alkyl or hydroxyalkyl radical, it being possible for one of the R'1, R'2 or R'3 radicals to be a benzyl radical. The derivative of formula (I) is used both as charged lipid and as anti-acne active principle. The derivatives of formula (I) in which, when R represents a C13-C17 alkyl radical, R'1, R'2 and R'3, when they are identical, do not represent a hydroxyethyl radical.