baber/WOPTO huggingface dataset:
Patent CA-2198553-A1 (CA)
Title: Gas diffusion electrodes
Inventor: DENTON JAN
IPC: H01M8/10
Filed: 1997-02-26
Abstract: A gas diffusion electrode comprising a non-woven network of fibres, one or more catalysts components and at least one polymeric substance characterised in that the catalyst is embedded within the fibre network is disclosed.
Patent CA-2198837-A1 (CA)
Title: Process for the preparation of pure alkyl alkylacetoacetates
Inventor: JACKSON BARRY
IPC: C07C69/716
Filed: 1997-02-28
Abstract: There is described a process for the purification of alkyl alkylacetoacetates of the general formula:   (see formula I) wherein R1 is a C1-C10-alkyl group and R2 is a C1-C4-alkyl group. In this process an alkyl alkylacetoacetate which contains an alkyl alkenylacetoacetate of the general formula:   (see formula II) wherein R1 and R2 are as defined above, and/or further by-products as an impurity, is converted with an ester of the general formula:   (see formula III) wherein R2 is as defined above, in the presence of a strong base, into an intermediate which is separated off.
Patent CA-2202774-A1 (CA)
Title: Dermatological compositions and method of treatment of skin lesions therewith
Inventor: DECKNER GEORGE ENDEL
IPC: A61K31/16
Filed: 1995-07-21
Abstract: The present invention relates to compositions for treating acne and other skin lesions and also to methods of treatment utilizing these compositions. These compositions and methods of treatment employ benzoyl peroxide, a compound for reducing the skin irritation associated therewith, and a topical carrier.
Patent CA-2203604-A1 (CA)
Title: Pneumatic trimline control unit
Inventor: MAZUR RICHARD J
IPC: B60T13/66
Filed: 1997-04-24
Abstract: A pneumatic trainline control unit receives air from a first pneumatic  trainline which  it  uses  to  charge  and maintain pressure in a second pneumatic trainline.   It also provides brake control pressure to a universal pneumatic brake unit on a rail vehicle upon receiving an emergency braking request from the second trainline.   The pneumatic trainline control unit includes  an  air  piloted  transfer  valve,  an  air  piloted maintaining valve, a charging magnet valve, an emergency release magnet valve, a low pressure switch, an air piloted vent valve and a pipe network.  The pipe network allows the first trainline to supply air to the transfer valve, the charging valve and the maintaining valve.  The transfer valve features a transfer pilot port.   It connects a command port of the pneumatic trainline control unit to atmosphere unless  its transfer pilot port receives the emergency braking request in which case it connects the pipe network to the command port.  The low pressure switch closes if the second trainline charges to a preset pressure.          Upon closure of the pressure switch and a manually initiated command from the controller, the charging valve allows the pipe network to charge the second trainline to a minimum threshold level.  The maintaining valve features a main pilot port.  It permits the pipe network to keep the second trainline charged unless pressure at its main pilot port falls below the minimum threshold.  When pressure in the second trainline drops faster than a predetermined rate, the vent valve vents the second trainline to atmosphere.
Patent CA-2204825-A1 (CA)
Inventor: VAUCHEL GUY BERNARD
IPC: B64D33/00
Filed: 1997-05-08
Abstract: Un inverseur de poussée de turboréacteur à double flux comporte des portes pivotantes (7) intégrées dans la paroi de nacelle en jet direct et formant des obstacles de déviation de flux en jet inversé. Chaque partie amont de porte (7) est doublée sur sa face interne par un panneau amont (22) assurant un lissage de veine en jet direct. Le panneau amont (22) est supporté le long d'un côté latéral par un axe de rotation longitudinal solidaire de la structure fixe (1) et est entraîné par un ensemble de bielles (24,26,28) comportant une articulation (27) sur la porte (7), une articulation (23) sur la structure fixe (1) et une articulation (29) sur le panneau amont (22) de manière que le panneau (22) se déplace en pivotement latéral par rapport audit axe de rotation (40).
Patent CA-2205626-A1 (CA)
Inventor: SCHATZ OSKAR
IPC: F28D20/02
Filed: 1997-05-16
Abstract: A heat storage, in particular for automotive vehicles, includes a storage housing which consists of an internal casing of a not round cross-section and an external casing enclosing the former in spaced relationship and a heat insulation, in particular a not supportive high vacuum insulation, enclosed between the internal and external casings. The cross-section of the casing shell of at least the internal casing comprises circular arc segments. The casing shell is supported at the transitions between the circular arc segments and adjacent cross-sectional portions of the container shell. Supplemental or alternative to such structure of the circular arc segments the external casing shell and the internal casing shell can be rigidly connected by connection elements so as to form an insulation container having walls of sandwich-structure.
Patent CA-2208126-A1 (CA)
Inventor: YEN JUNG-CHUAN
IPC: G09B13/04
Filed: 1997-08-19
Abstract: A computer typing learning device includes a cover and a seat, and a key board combined  electrically  with with a screen disposed between the cover 1 and the seat.          An electronic circuit board is  provided  under  a  base plate of the key board for  arranging  various  circuits thereon for various functions to display  typed  letters on a exercise letter row of the screen  to  be  compared with a reference letter row and a warning  mark  row  to show which typed letter is wrong. The keyboard is structured as all the same as that for  common  computers.  A solar cell module is also  provided  inside  the  cover, connected with a battery deposited in a battery  chamber in the cover, and a power convert switch is fixed on the cover for selecting a power source  AC  or  DC  for  the device.
Patent CA-2208481-A1 (CA)
Inventor: TRENEL MARC
IPC: G01G3/14
Filed: 1997-06-12
Abstract: The invention relates to a real-time weighing device, so as to monitor and measure the taking of food by pets, which comprises, in a frame (3), at least one support  (14)  allowing  accommodation  of  a  container which accommodates the food for said pets, at least one strain-gauge sensor (1) mechanically connected to said support and an electronic card wired up to said sensor (1) for information storage.
Patent CA-2210426-A1 (CA)
Title: Method and apparatus for purifying water and for maintaining the purity thereof
Inventor: KOSLOWSKY PETER
IPC: C02F1/42
Filed: 1997-07-14
Abstract: The invention relates to a method and apparatus for purifying and maintaining the purity of water in a swimming pool by initially feeding into the pool water treated in an ion exchanger to render it acidic and hardness-free.  lime water consisting of a clear and saturated aqueous solution of white lime or white lime hydrate being thereafter added to provide a time-carbonic acid equilibrium, at least some of the acidic and hardness-free water being recirculated over a body of crushed limestone to establish a pH of not less than 7. Carbon dioxide and oxygen may also be added.
Patent CA-2210429-A1 (CA)
Title: Oil concentrates of polymers with improved viscosity
Inventor: LUCIANI CARMEN V
IPC: C10M161/00
Filed: 1997-07-14
Abstract: A composition of about 2 to about 20 percent of a hydrogenated diene/vinyl aromatic block copolymer and a non-ionic surface active agent, soluble in said oil, comprising at least one ester or ether group, in a medium of oil of lubricating viscosity, exhibits reduced viscosity compared with comparable compositions without the surface active agent.
Patent CA-2212265-A1 (CA)
Inventor: RAMESH NALLEPILLI S
IPC: H04B1/69
Filed: 1997-07-31
Abstract: Un certain nombre de signaux modulés sont produits pour un flux de données. Chaque signal modulé, qui contient toute l'information du flux de données, est produit à une fréquence porteuse différente. Les signaux modulés sont combinés pour être transmis sous la forme d'un signal multibande. Dans une version, les signaux modulés sont compatibles avec les signaux produits conformément à la norme de télécommunications IS-95. Dans cette version, des flux de données en large bande sont combinés avec des séquences de code qui sont basées sur les mêmes séquences de code de Walsh que pour la production des signaux IS-95. Chaque flux de données en large bande est codé au moyen soit d'une séquence de code de Walsh particulière, soit de sa négation logique afin de produire un flux codé pour chaque fréquence porteuse utilisée pour produire les signaux IS-95. Chaque flux codé est ensuite modulé sur une des fréquences porteuses par modulation à spectre étalé afin de produire pour ce flux de données en large bande un certain nombre de signaux modulés contenant chacun toute l'information du flux de données en large bande d'origine. L'affectation systématique de séquences de code de Walsh et de leurs négations logiques, et la modulation à spectre étalé des données en large bande, assurent que le signal modulé multibande résultant pour chaque flux de données en large bande est orthogonal par rapport à tous les autres signaux modulés multibandes assimilés et par rapport à tout signal IS-95. Ainsi, l'invention accroît la capacité utilisateur et le débit binaire d'un réseau IS-95 sans réclamer d'autres fréquences porteuses ni d'autres séquences de code que celles que permet déjà le réseau IS-95.
Patent CA-2213086-A1 (CA)
Inventor: LILLEY MARTIN J
IPC: C08K3/26
Filed: 1997-10-02
Abstract: A processing method to prepare and purity carbide-lime, a waste product from the manufacture of acetylene from calcium carbide, for use as a filler and extender in resin and polymer compounds, and thermoplastic compositions filled with such carbide lime are disclosed. The process comprises an economic method of size reduction, classification and two-stage drying, with reduced surface carbonation, which produces a fine, dry, free-flowing powder comparable to conventional ground mineral fillers used in thermoplastics, and which may be compounded into resins and polymers in the normal way. The process can convert lumpy or slurried carbide lime having 5 to 60% moisture to a powder having a controllable average particle size of 2 to 50 microns with a moisture content from 0.25 to 2%, having a calcium hydroxide content of 70-85%, and a calcium carbonate content of 5 to 25%, both by weight. The filled thermoplastic compositions comprise (a) 5 to 60 parts powdered carbide-lime filler, (b) 20 to 95 parts thermoplastic resin or elastomer and (c) 0 to 50 parts lubricants, anti-oxidants, stabilisers, plasticisers, pigments, fire-retardent and other fillers and additives as are common in the art. The thermoplastic compositions exhibit a useful combination of stiffness and toughness, as measured by tensile and impact strengths, at least comparable to compositions using conventional mineral fillers, while also providing lower density, lighter, more economic, filled compositions.
Patent CA-2215001-A1 (CA)
Title: Process for the production of the dexfenfluramine hydrochloride
Inventor: SPREAFICO ANGELO
IPC: C07C211/63
Filed: 1997-09-04
Abstract: Process for the production of the anorexic drug dexfenfluramine hydrochloride (INN) which comprises the ethylation of the (S),(S)-N-1-phenylethyl)-.alpha.-methyl-3(trifluoromethyl)benzeneethanamine or of a salt thereof with an organic or inorganic acid, the debenzylation of the resulting intermediate (S),(S)-N-ethyl-N-(1-phenylethyl).alpha.-methyl-3-(trifluoromethyl)benzeneethanamine or of a salt thereof with an organic or inorganic salt by catalytic hydrogenation and, optionally, the salification with hydrochloric acid.
Patent CA-2216482-A1 (CA)
Inventor: MORRIS MICHAEL J
IPC: A63H33/38
Filed: 1997-09-26
Abstract: An interactive book-toy combination includes a book affixed to a toy character. The toy character includes a torso with a head and a plurality of limbs extending from the torso. The book includes a front cover, a back cover and a plurality of leaves therebetween. The back cover of the book is affixed to the torso of the toy character. The limbs of the toy character are extendable beyond peripheral edges of the book. The limbs are pliable and can be manipulated by a child into multiple positions. An interactive book-toy combination in another embodiment includes a plurality of printed octagonal-shaped panels constructed of generally rigid board material. The panels include a front panel, a rear panel and multiple middle panels between the front and rear panels. The middle panels are each hingedly connected at one side to one adjacent panel and at an opposite side to another adjacent panel, thereby enabling an accordion-like unfolding of the panels. A plush creature head is affixed to the front panel, and a plush creature tail is affixed to the rear panel. Pliable limbs are connected to and extend from the panels to create the appearance of a multi-legged creature such as a caterpillar. The pliable limbs are arranged in pairs, with each pair extending from a different panel. The pliable limbs can be manipulated and shaped by a child into various positions.
Patent CA-2217107-A1 (CA)
Title: Cooling method for assembled batteries
Inventor: IKOMA MUNEHISA
IPC: H01M10/6563
Filed: 1997-09-30
Abstract: The present invention concerns a method for cooling assembled batteries comprising rechargeable batteries and intends to avoid temperature dispersion among single cells and hence avoid dispersion of battery performance. A module battery 10 is so constructed that convex portions 8 provided on the battery container 2 of the single cells 7 come in contact with each other creating by recessed portion 9 a space 11 in the vertical direction between single cells 7. The module battery 10 is banded by means of aluminum plates 12 and iron bands 13 with the single cells 7 at both ends forced inwardly. The module batteries are placed sideways with the terminals facing the same direction and the cooling medium flows toward the surface where the electrode poles are provided.
Patent CA-2218256-A1 (CA)
Title: Reduced residue hard surface cleaner comprising hydrotrope
Inventor: RYKLIN IRMA
IPC: C11D1/04
Filed: 1997-02-13
Abstract: Disclosed are hard surface cleaning compositions comprising detergent surfactant and detergent builder and a hydrotrope in an amount sufficient to prevent filming and/or streaking after a surface is cleaned.
Patent CA-2219125-A1 (CA)
Title: Coaxial cable tap
Inventor: GLIGA ALEXANDRU S
IPC: H04H20/76
Filed: 1996-04-23
Abstract: A method of forming a tap into an intermediate point on a continuous coaxial cable comprising an inner conductor, a dielectric surrounding the inner conductor, and an outer conductor surrounding the dielectric. The method comprising the steps of: forming an opening in the outer conductor of the coaxial cable (1000); forming a cavity in the dielectric under the opening;  and mounting a tap insert (20) to the coaxial cable, the tap insert comprising a signal chip (22), so that the signal chip (22) is located in the cavity adjacent to the inner conductor of the coaxial cable, and can extract or insert or both a signal from the inner conductor. The tap assembly comprising a tap housing (100) and a tap insert (20). The coaxial cable tap housing (100) comprising; a first end portion; a second end portion; an intermediate portion having a recess (14); means for fixing the housing around an intermediate point on a continuous coaxial cable; an alignment element (12) having a known spatial relationship with the recess (14); and means for mounting a tap insert to the recess (14). The tap insert (20), comprising: a tap faceplate (21) comprising: an inner face, an outer face, means for mounting the tap faceplate (21) to a cable tap housing (100), and means for environmentally and electromagnetically sealing the tap faceplate (21) to the cable tap housing (100); a signal chip (22) mounted on the inner face of the tap faceplate; and means for providing RF input and/or output, said means mounted on the outer face of the tap faceplate (21).
Patent CA-2219236-A1 (CA)
Title: Mica heat shield for high intensity discharge lamp
Inventor: WILLIAMSON GLEN P
IPC: H01J61/04
Filed: 1997-10-23
Abstract: A high intensity discharge lamp has a light transmissive envelope and an arc tube located within the envelope. The arc tube contains an arc generating and sustaining medium as well as electrodes. A flare is sealed to the lamp envelope and the flare includes two electrically conductive lead-ins sealed therein, each of the lead-ins having a given diameter. A mica heat shield comprising a planar mica disc frictionally engages the lead-ins, the mica disc having a pair of lead-in receiving apertures therein, the receiving apertures having a diameter greater than the given diameter and each having an oppositely extending, radial slot extending therefrom, each of the slots having a width less than the given diameter. The mica heat shield is positioned on the lead-ins closely and adjacent to the upper surface of the flare by having the slots in frictional engagement with the lead-ins.
Patent CA-2221374-A1 (CA)
Title: Curable gypsum-containing composition and method for stabilization of unconsolidated core samples
Inventor: HJELMELAND ODD
IPC: E21B25/08
Filed: 1996-05-14
Abstract: PCT No. PCT/NO96/00116 Sec. 371 Date Mar. 6, 1998 Sec. 102(e) Date Mar. 6, 1998 PCT Filed May 14, 1996 PCT Pub. No. WO96/38394 PCT Pub. Date Dec. 5, 1996A curable gypsum-based composition for the production cured gypsum matrix. The composition comprises two-components, the first component includes calcined gypsum suspended in water, and a set retarding substance comprising (i) an organic acid containing at least two acid groups selected from the group consisting of carboxyl, sulphate, sulfonate, phosphate and phosphonate, the acid optionally also containing at least one hydroxy group per molecule; and/or (ii) inorganic anions selected from the group consisting of polyphosphate, polyborate and mixtures thereof. The second component comprises a set accelerating substance including water-soluble salts of multivalent metal ions. The water soluble salts in the second component form stable precipitates or complexes with the organic acid in the first component. The second component may also comprise easily soluble salts of ammonium and/or cations from the first group of the periodic table of the elements, which will accelerate the hardening process. Also a method for stabilizing core sample material from a drilling hole. The method at least partially encapsulates the core sample material in a cured gypsum matrix.
Patent CA-2221484-A1 (CA)
Inventor: TERRAGNI EZIO
IPC: A47G25/02
Filed: 1997-11-19
Abstract: An upwardly/downwardly movable clothes-hanger device comprises, for receiving the hung clothes, support means (11) applied to at least one lever (12) extending from a linkage which is mounted on a supporting surface and by which said at least one lever (12) is movable between a raised substantially vertical or close to vertical position and a lowered substantially horizontal position.  According to the invention, said linkage is housed in a seat (23) provided within said lever (12), which is preferably defined by two half-casings (20) joined together.
Patent CA-2222158-A1 (CA)
Title: Self accelerating and replenishing non-formaldehyde immersion coating method and composition
Inventor: MCCASKIE JOHN EDWARD
IPC: C23C26/00
Filed: 1994-03-15
Abstract: A process for applying a metal coating to a nonconductive substrate without an electroless coating is disclosed.  The process includes the step of: a. contacting said substrate with an activator comprising a noble metal/Group IVA metal sol to obtain a treated substrate; b. contacting said treated substrate with a self accelerating and replenishing immersion metal composition comprising a solution of: (i)   a soluble metal salt whose metal is more noble than said Group IVA metal;        (ii)  a Group I A metal hydroxide; (iii) a complexing agent comprising an organic material having a cumulative formation constant log K of from about 0.73 to about 21.95 for an ion of the metal of said metal salt. The Group IVA metal is employed in a stoichiometric excess compared to the noble metal, the excess Group IVA metal being in its lowest oxidation state. Selfaccelerating and replenishing non-formaldehyde immersion metal compositions are also disclosed. The composition is used in a two step process to electrolytically coat a nonconductive substrate. In the first step the conductivity of the substrate is increased by applying the composition to it.  In the second step, the substrate treated with the composition is electrolytically coated with a metal.
Patent CA-2223067-A1 (CA)
Inventor: JONES RICHARD S
IPC: E01F13/06
Filed: 1997-12-01
Abstract: A highway crossing gate control circuit is provided which minimizes the "pumping" oscillation of a highway crossing gate arm which is driven up by a permanent magnet motor. A preferred embodiment of the control circuit utilizes a p-channelMOSFET in a power down module of the control circuit to restrict power from being applied to the motor when the gate arm is in an up position and is intended to be held in the up position by a hold clear device which acts as a mechanical break. Provision is included for dynamic braking on the gate arm moving downward after an initial drive down mode.
Patent CA-2228819-A1 (CA)
Title: Waste treatment
Inventor: GRISE MICHEL
IPC: C02F11/12
Filed: 1998-04-09
Abstract: A process for the treatment of liquid hog manure which comprises adding a cellulosic material to the liquid hog manure, mixing the cellulosic material and liquid hog manure, separating said mixture to leave a solids portion and a liquid portion, drying said solids portion, and further treating said liquid portion. The methodremoves solids from the liquid hog manure and the solids may then be used for a fuel value while the liquid portion may be used as a manure or for other purposes.
Patent CA-2233668-A1 (CA)
Title: Method and apparatus for providing an improved caller interface in a fixed cellular communications system
Inventor: KIM PHUONG VO
IPC: H04B7/24
Filed: 1996-09-23
Abstract: In a fixed cellular telephone system (10), an improved caller interface is provided wherein the taking of a standard wireline telephone set (12) off-hook (50) triggers the establishment of a voice path (62) between the telephone set (12) and the cellular system switch (16). A dial tone is then applied (64) by the cellular system to the voice path and a caller enters (66) the digits of the telephone number of the party to which the call is directed. The caller dialed digits are transmitted over the voice path (70) to the cellular system switch (16) where they are processed (78) to complete the call connection to the called party. The dialed digits are further analyzed on a one-by-one basis to determine whether improper or unauthorized digits or combinations of digits have been entered by the caller. The caller interface provided by the fixed cellular system (10) of the present invention accordingly operates in a substantially identical manner to that experienced with a conventional wire-based telephone system and in an improved manner over that provided in a conventional cellular system.
Patent CA-2234305-A1 (CA)
Title: High-intensity through-air-drying for conversion of conventional wet-press paper machines
Inventor: MARCHAL PAUL
IPC: D21F5/18
Filed: 1998-04-02
Abstract: The present invention is a method of retrofilling a conventional felted wet-press paper machine to a through-air-drying (TAD) paper machine, without the need to move any of the apparatus sections that will be retained in the TAD machine. The present invention is a method of using an applied pressure differential in a reduced diameter TAD cylinder to achieve necessary drying conditions in a reduced area.
Patent CA-2236309-A1 (CA)
Title: Use of inhibitors of retinoic acid activity for wound healing
Inventor: DEMARCHEZ MICHEL
IPC: A61K8/00
Filed: 1997-09-17
Abstract: The invention concerns the use of inhibitors of retinoic acid activity, such as the RAR antagonists, for healing wounds, particularly of the skin.