baber/WOPTO huggingface dataset:
Patent CA-2173414-A1 (CA)
Title: Oil production well and assembly of such wells
Inventor: ESCOVEDO BRUCE MARTIN
IPC: E21B43/24
Filed: 1996-04-03
Abstract: An oil production well comprises an upwardly dipping or substantially horizontal inflow section such that a J--or L-shaped well is created. Hot fluid, such as steam, is injected in the region of the toe of the well such that the injected hot fluid is induced to flow together with the produced crude oil into the well, thereby heating up the inflow section of the well and stimulating the flow of crude oil into and through said inflow section.
Patent CA-2174003-A1 (CA)
Title: Papermakers fabric with orthogonal machine direction yarn seaming loops
Inventor: LEE HENRY J
IPC: D03D1/00
Filed: 1991-03-15
Abstract: A woven pin-seamed papermakers fabric wherein machine direction yarns define a series of orthogonal seaming loops on the opposing fabric ends. The fabric comprises a system of flat monofilament machine direction yarns (hereinafter MD yarns) which are woven in a selected weave construction. In a preferred embodiment, the system of MD yarns comprises upper and lower yarns which are vertically stacked. End segments of the lower MD yarns are removed and the upper MD yarn ends are looped back upon themselves and rewoven into the fabric end in the space vacated by the trimmed lower MD yarn end segments. Non-loop forming upper MD yarns are also preferably backwoven into the space vacated by trimming the respective lower MD yarns. Preferably, at least the upper MD yarns are woven contiguous with each other to lock in the machine direction alignment of the stacking pairs of MD yarns and the orthogonal orientation of the end loops.
Patent CA-2175531-A1 (CA)
Title: Polyurethane-polyureas and their use as emulsifiers
Inventor: ZOELLER JOACHIM
IPC: C09K23/52
Filed: 1996-05-01
Abstract: Water-dispersible polyurethane-polyureas useful as emulsifiers for synthetic resins, such as alkyds.
Patent CA-2175619-A1 (CA)
Inventor: AKENO MITSURU
IPC: A44B19/30
Filed: 1996-05-02
Abstract: In an automatic lock slider for a concealed slide fastener, a fastener-element guide post of a slider body has an upper groove receiving a locking lever and a lower groove slidably receiving a sliding end of a pivoting release member. A spring mounted in the guide post acts on an actuating arm of the locking lever to urge a locking pawl of the locking lever to normally project into a fastener-element guide channel of the slider body. An ornamental knob attached to the pivoting release member covers exposed part of the slider body. As the knob is pulled to pivotally move the release member, the locking pawl is retracted from the guide channel.
Patent CA-2175669-A1 (CA)
Title: Forming moulding with simulated wood grain surface
Inventor: ALBERTELLI ALDINO
IPC: B44F9/02
Filed: 1994-11-03
Abstract: An aviation gas turbine lubricant composition which comprises an antioxidant composition comprising the reaction product of specific molar ratios of diphenylamines and N-aryl naphthylamines in the presence of controlled amounts of an organic peroxide. The antioxidant composition is mainly homo-oligomers of diphenylamines and cross oligomers of diphenylamines and N-arylnaphthylamines..
Patent CA-2177354-A1 (CA)
Title: Injection molded pva sponge
Inventor: ROSENBLATT SOLOMON
IPC: C08J9/30
Filed: 1994-12-14
Abstract: A molded porous polyvinyl  alcohol sponge includes an outer skin capable of absorbing and passing water to interior portions of the sponge, and is substantially smooth except for predetermined structural details imparted by the mold used in its making.  The outer skin has smaller average  pore size than does the interior  portion of the product.
Patent CA-2178416-A1 (CA)
Inventor: MUSSI EDWARD F
IPC: G01N1/00
Filed: 1996-06-06
Abstract: A pipet for transferring fluids of the present invention includes a distal tip, a barrel portion with an exterior surface, and a proximal neck. The pipet has a hollow bore. There are graduation markings on the exterior surface of the barrel portion for determining a volume of a fluid contained in the pipet. The graduation markings have a longitudinal and a radial orientation about the barrel. The pipet of the invention further includes a proximal mark for indicating the radial orientation of the graduation markings on the barrel that allows an operator to mount the pipet in a pipetter with the packaging open only at the neck end of the pipet in the most favorable orientation for use.
Patent CA-2181357-A1 (CA)
Title: Soldering process
Inventor: BRADLEY EDWIN L III
IPC: B23K35/02
Filed: 1995-12-19
Abstract: A soldering process uses two or more different solder alloys. A first solder alloy (115) that undergoes a solid-to-liquid transition at a first temperature is coated (20) onto the solderable surfaces (105) of a printed circuit board (100). A solder paste (120) that undergoes this solid-to-liquid transition, at a temperature greater than the first temperature is deposited on the coated solderable portions, and is heated to a temperature that is above the first temperature but below the secondtemperature. During this time, the first solder alloy liquifies, while the solder paste does not. The first solder alloy wets to the individual particles in the solder paste and alloys to the solderable surfaces and the solder particles in the solder paste The soldering composition is subsequently cooled (40) to solidify the first solder material, forming a solid and substantially planar coating on the solderable portions of the printed circuit board.
Patent CA-2182553-A1 (CA)
Title: Composite floor
Inventor: FETZ CHARLES R
IPC: B62D25/20
Filed: 1996-08-01
Abstract: Composite floor for an insulated or semi--insulated trailer including a unitary subfloor member and a unitary top floor member with a rigid foam core being located therebetween. The foam core has sufficient strength to transfer a cargo load from the top floor member to the bottom floor member without additional floor sills being located therebetween. The invention is further embodied in an improved method of manufacturing a floor as set forth above.
Patent CA-2182720-A1 (CA)
Title: Method and apparatus for manufacturing composite lenses
Inventor: BLUM RONALD D
IPC: C08F2/00
Filed: 1995-03-16
Abstract: A method for making improved optical quality lenses is described. The method includes arranging a mold (13) having a molding surface, a curable optical quality resin composition, and a plastic lens preform (11) of optical quality material such that the resin composition (16) is disposed between, and in contact with the plastic lens preform (11) and the mold (13). Upon curing, the resin composition forms a cured plastic attached portion that is bonded to the plastic lens preform. The resin composition and plastic lens preform (11) are selected such that the attached portion has a higher scratch resistance, a lowerchromatic aberration, and/or a higher ease of edging than the lens preform.
Patent CA-2184567-A1 (CA)
Inventor: KITO TSUTOMU
IPC: B41M5/36
Filed: 1996-08-30
Abstract: A temperature-dependent color/transparency storing resin layer is composed by dispersing and fixing a mutually dissolved homogeneous composition consisting of (A) an electron-donating color-developing organic compound, (B) a compound having a phenolic hydroxyl radical, and (C) a compound selected from alcohols, esters, ketones and carboxylic acids, in vinyl chloride-vinyl acetate-copolymer matrix resin, as small particles, and capable of exhibiting reversible change in color and in transparency in response to a temperature variation with hysteresis, and selectively storing a state developed above the high trigger temperature and a state developed below the low trigger temperature in a temperature range between the high and low trigger temperatures, wherein the transparency is improved by blending vinyl chloride-vinyl acetate-vinyl alcohol copolymer and/or vinyl chloride-vinylidene chloride copolymer as an agent for improving the transparency in said matrix resin so as to regulate the transparency and to conspicuously improve the transparency especially exhibited in a temperature range above the high trigger temperature, so as to constitute a laminate member to be applied in various fields.
Patent CA-2184922-A1 (CA)
Title: Adjustable wing plow
Inventor: NIEMELA CAL G
IPC: E01H5/06
Filed: 1996-09-05
Abstract: A plow assembly is disclosed for vehicles such as pickup trucks and tractors for moving snow or other materials. The plow assembly has at least one extendable, forwardly pivotable plow wing which is extendable on one end of a main plow by sliding movement along the front of the plow between a retracted and an extended position in which the plow wing is generally aligned with the plow front surface. The plow wing is also pivotally mounted on a hinge for movement between the extended position and a forwardly angled position in which the plow wing front surface extends at an angle to the plow front surface. A power source connected to the plow wing is operable to move the wing between the retracted, extended and forwardly angled positions. Preferably, a latch assembly prevents pivotal movement of the plow wing to the forwardly angled position until the plow wing is in the extended position. In the preferred embodiment, an extendable plow wing is included on each end of the main plow with a pair of independent fluid cylinders connected to the respective plow wings which are operable independently of one another to move the plow wings independently between their respective retracted, extended and forwardly angled positions. When both plow wings are pivoted to their forwardly angled positions, the plow assembly has a general U-shape which facilitates pushing snow or other material without the snow slipping off the plow blade ends. The plow assembly is also preferably pivotally mounted on a support frame for movement about a generally vertical pivot axis from a centered position to a series of angled positions in which the plow blade is angled to the left or right of the centered position. If desired, the plow blade may be pivotally connected to the support frame about a second, generally horizontal pivot axis to allow forward pivotal movement of the plow blade and plow wings in unison when the plow blade or either wing encounters an obstacle during plowing.
Patent CA-2185159-A1 (CA)
Inventor: FRANZ HELMUT
IPC: B65G49/06
Filed: 1996-09-09
Abstract: An organic acid anti-staining composition for glass sheets is disclosed herein whereby the corrosive effects of very low pH are eliminated by buffering the organic acid.  The buffered organic acid has a less acidic pH, but is as effective as unbuffered organic acid in neutralizing alkali formed by sodium from the glass to prevent staining of the glass surface.
Patent CA-2185830-A1 (CA)
Title: Determining optimal pulse width modulation patterns for spatial light modulator
Inventor: DOHERTY DONALD B
IPC: G02B26/08
Filed: 1996-09-18
Abstract: A method of evaluating pulse width modulation patterns for a spatial light modulator display device. The method makes use of a light difference series function. This series function is obtained by representing on or off times of a display element as a light function. (FIGURE 3). Two such light functions can be subtracted to compare two different patterns on the same display element (interframe) or to compare the same pattern on different display elements (intraframe). (FIGURE 4).  The result of the subtraction is a light difference function (FIGURE 5), which can be expressed as a series function. Mathematical expressions using the series function correlate to various optical characteristics.
Patent CA-2188109-A1 (CA)
Inventor: RIONDEL ALAIN
IPC: B01J31/02
Filed: 1996-10-17
Abstract: A new process for the mfr. of cpd. of formula (I), where -R<1> = H or Me ; A, B (each) = 2 - 5C alkylene(opt. branched), whereby anhydride of formula (II) is reacted with a heterocyclic alcohol of formula (III).
Patent CA-2188369-A1 (CA)
Title: Method and an arrangement for classifying speech signals
Inventor: STEGMANN JOACHIM
IPC: G10L25/27
Filed: 1996-10-21
Abstract: Described is a method and an arrangement for classifying speech on the basis of wavelet transformation for low rate speech coding methods. The method or arrangement as a robust classifier of speech signals for the signal-matched control of speech coding methods for lowering the bit rate at a constant speech quality, or to increase the quality for an identical bit rate is characterized in that after segmentation of the speech signal a wavelet transformation is calculated for each frame, from which--with the help of an adaptive threshold--a set of parameters is determined, this set of parameters controlling a status model that divides the frame into shorter subframes and then assigns each of these subframes into one of several classes that are typical for speech coding. The speech signal is classified on the basis of the wavelet transformation for each time frame. Thus, it is possible to achieve a high level of resolution in the time range (localisation of pulses) and in the frequency range (good average values). This method and the classifier are thus suitable, in particular, for controlling or selecting code books in a low rate speech coder. In addition, that are not sensitive to background noise, and display a low level of complexity.
Patent CA-2190157-A1 (CA)
Title: Checkout counter order divider including merchandise to be purchased
Inventor: FRASER WILLIAM A
IPC: A47F13/00
Filed: 1996-02-06
Abstract: A checkout counter order divider bar includes merchandise to be purchased and which is displayed through transparent walls of the divider bar. A customer signals an operator at the checkout counter orally or visually that he/she wants to buy the merchandise in the divider bar or by activating a signalling device on the order divider bar.
Patent CA-2191139-A1 (CA)
Inventor: EZECHIELS DAVID
IPC: A47K10/22
Filed: 1996-11-25
Abstract: The toilet paper caddy is a simple toilet paper stores device. That holds a plurality of toilet paper rolls. These rolls can be fed from the top or bottom of the unit. they can be accessed by the user from the top or the bottom of the unit.
Patent CA-2195778-A1 (CA)
Title: Method of treating opportunistic infections with azaspiranes
Inventor: BADGER ALISON MARY
IPC: A61P31/04
Filed: 1995-07-14
Abstract: Invented is a method of treating opportunistic infections in a mammal, including a human, in need thereof which comprises administering to such mammal an effective amount of a substituted azaspirane.
Patent CA-2196919-A1 (CA)
Inventor: STEVENS-WRIGHT DEBBIE E
IPC: A61B18/14
Filed: 1996-06-06
Abstract: L'invention concerne un cathéter de guidage bidirectionnel qui comprend une électrode distale, une pointe flexible, une tige allongée à canal intérieur central s'étendant sur la longueur de la tige, et un(e) poignée/actionneur. Une pluralité d'électrodes annulaires sont fixées à la surface de la pointe flexible. Des fils de transmission de signaux qui s'étendent sur la longueur du cathéter sont connectés électriquement à chaque électrode annulaire. Il est prévu au moins deux câbles de traction comportant une première et une seconde extrémité qui s'étendent dans le sens distal à travers le canal intérieur central. La première extrémité de chaque câble de traction est fixée à la(au) poignée/actionneur. La seconde extrémité de chaque câble est fixée à l'électrode distale, de manière à ce que l'électrode distale puisse être déplacée entre une première et une seconde position dans un seul plan, par manipulation de la(du) poignée/actionneur. Il est prévu au moins deux éléments de renforcement, à l'intérieur de la pointe flexible. Chaque élément de renforcement présente une section proximale, une section médiane et une section distale. Chaque section proximale présente un diamètre plus important que chacune des sections médianes et est par conséquent plus rigide que la section médiane. La rigidité variable sur la longueur de chacun des éléments de renforcement répartit les contraintes uniformément sur la longueur de la pointe.
Patent CA-2197027-A1 (CA)
Inventor: DE JESUS ARMANDO
IPC: G06F21/00
Filed: 1997-02-07
Abstract: Apparatus to provide security for a keypad processor of a transaction terminal includes a secured processor coupled to a keypad and processor of the transaction terminal. The apparatus may operate in a secured or an unsecured mode. In a secured mode, the apparatus prevents the fraudulent acquisition of information, such as personal identification numbers (PIN), entered through the keypad. By encrypting data entered through the keypad, the apparatus prevents the fraudulent acquisition of information transmitted to a processor such as a central computer of a bank. The secured processor provides actual and false sampling of the keypad and simulates keypad data entries to prevent an electronic eavesdropper from determining the actual keypad entries.
Patent CA-2197468-A1 (CA)
Title: Integrator management for redundant active hand controllers
Inventor: GREGORY WILLIAM W
IPC: G05D1/00
Filed: 1995-06-29
Abstract: A redundant active hand controller system has first and second motors connected to a common shaft. A compensator which differentiates a motor command signal from a first proportional and integral controller, differentiates a motor command signal from a second proportional and integral controller and subtracts the first differentiated motor command signal from the second differentiated motor command signal to provide a correction signal. The correction signal is summed with the error signal into the first proportional and integral controller to correct for slight differences in the integral control function of the first and second proportional and integral controllers.
Patent CA-2201475-A1 (CA)
Title: Vacuum assisted application of thin vapor permeable, liquid impermeable coatings on apertured substrates and articles produced therefrom
Inventor: RAY CARL D
IPC: B32B3/24
Filed: 1995-10-27
Abstract: A process for the manufacture of a vapor permeable, liquid impermeable composite material (10, 12) comprising a three-dimensional apertured substrate (12) having a vapor permeable, liquid impermeable coating material (10) thereon, the substantially liquid impervious composite material, and an apparatus (38, 40, 42, 46, 48) for making the composite material, are diclosed. Successive portions of a continuous sheet of an apertural substrate are passed into contact with a continuous moving perforated member. The coating material is supplied onto the substrate. The coated substrate is subjected to a vacuum which causes the coating material to flow onto the substrate material, and in certain embodiments, at least partially into the apertures in the substrate. The vacuum is maintained for a period of time sufficient for the coating material to adhere to the substrate. The coated portions of the substrate are continuously removed from the moving member.
Patent CA-2201600-A1 (CA)
Title: Device for drying, washing and/or disinfecting protective suits
Inventor: JANNACH HELMUT
IPC: D06F41/00
Filed: 1995-10-04
Abstract: The invention relates to a device for drying protective suits, for which the suit is put over a supporting framework, which consists of tubes and reaches into all extremities of the suit, the tubes having outlet openings at their ends for warm air that has been blown in. The supporting framework 1; 101 is formed by tubular hoops 2, 3, 4, 5; 102, 103, 104, 105; 102', 103', 104', 105' which, in the area of the feet and hands of the protective suit, have bends 6, 7, 8, 9; 106, 107, 108, 109; 106', 107', 108', 109', in which the outlet openings 21; 121 for the drying air are disposed. An additional connecting piece 124; 124', which optionally can be shut off, is provided at the common manifold 18, 118, 118' for supplying detergents and disinfectants, it being possible preferably to shut off the drying air line before the connecting piece 124 also by means of a valve 125.
Patent CA-2203650-A1 (CA)
Inventor: CARROLL FRANCIS ALFRED
IPC: A47F7/14
Filed: 1995-11-30
Abstract: Ensemble étagère modulaire en gradins et comportant au moins deux tablettes (R1, R2, R3) de présentation de marchandises, montées suspendues selon une configuration en gradins, et des supports (700, 800) permettant la fixation des tablettes en gradins à une structure porteuse (2). Chaque tablette possède des parties (H1, H2, H3) permettant sa fixation aux supports (700, 800) et/ou à la tablette voisine du côté supérieur dans la configuration en gradins. Les supports (700, 800) comportent un support d'ancrage (710) apte à coopérer avec la structure porteuse (2) et la tablette supérieure (R1), et au moins un support suspendu (720, 730) apte à être suspendu de manière amovible au support d'ancrage (710). Les supports d'ancrage et suspendus (710, 720, 730) présentent des parties saillantes planes (716, 726, 736) servant d'appui pour l'extrémité inférieure de chacune des tablettes (R1, R2, R3). Les tablettes (R1, R2, R3) sont fixées aux supports (700, 800) au moyen de ventouses (713, 723, 733) et servent d'éléments de liaison, de manière que la structure formée par les supports (700, 800) et les éléments de liaison soit stable. Les éléments de liaison peuvent être une ou plusieurs des tablettes (R1, R2, R3) ou une barre de liaison (600) indépendante.
Patent CA-2204145-A1 (CA)
Title: Acne treating-wound healing compositions containing a pyruvate, an antioxidant and a mixture of fatty acids
Inventor: MARTIN ALAIN
IPC: A61K35/35
Filed: 1995-10-05
Abstract: This invention pertains to therapeutic acne treating-wound healing compositions useful for the topical treatment of acne vulgaris. The compositions comprise a therapeutically effective amount of tretinoin and a wound healing composition. In one embodiment the wound healing composition comprises (a) pyruvate; (b) an antioxidant; and (c) a mixture of saturated and unsaturated fatty acids. The therapeutic acne treating-wound healing compositions may be utilized in a wide variety of pharmaceutical products. This invention also relates to methods for preparing and using the therapeutic acne treating-wound healing compositions and the pharmaceutical products in which the therapeutic compositions may be used. This invention also relates to methods for employing the therapeutic acne treating-wound healing compositions to treat wrinkles.
Patent CA-2205522-A1 (CA)
Title: Apparatus for cleaning submerged surfaces
Inventor: RISSIK GEORGE VICTOR
IPC: E04H4/16
Filed: 1997-05-15
Abstract: A cleaning apparatus for submerged surfaces such as found in swimming pools includes a body defining an internal chamber; at least one inlet and at least one outlet to the chamber on opposite sides of a suitable liquid flow interruption means; a cleaning foot associated with the body and communicating with the inlet, the cleaning foot having an outer surface adapted to be located adjacent to and to travel over a submerged surface to be cleaned; a connection for a flexible suction hose communicating with the outlet; and is characterised in that the connection alone or as part of the body is pivotable in at least one direction generally in a plane transverse to the surface of the cleaning foot and preferably also pivotable in a swivelling manner generally parallel to the surface of the cleaning foot.
Patent CA-2205558-A1 (CA)
Title: Apparatus for the purification of water contaminated with oil
Inventor: APELDOORN ADRIANUS PETRUS G
IPC: B01D3/42
Filed: 1995-11-27
Abstract: An installation for cleaning oil-polluted water, in particular at oil and gas production plants, is provided with a distillation column (20) having a polluted water feed (21) and at least one contact packing (23) above which the outlet of the polluted water feed is located, a vapour discharge (39) and a clean water outlet (27); and a measuring device (33, 34) for the analysis of the water from the clean water outlet.