baber/WOPTO huggingface dataset:
Patent CA-2204885-A1 (CA)
Title: A shaft seal
Inventor: DEINEKA ALEXANDER VLADIMIROVIC
IPC: F16J15/34
Filed: 1994-11-16
Abstract: The invention relates to a non-contacting shaft seal formed between a rotating sealing ring (3) and a non-rotating circular sealing element (1). The sealing element (1) is spring-loaded towards the sealing ring (3). Gas is pumped into spiral grooves (6) formed in the sealing face (5) of either the sealing ring (3) or the sealing element (1) and extending from an edge thereof during rotation of the sealing ring (3) and a gap (S) is created between the sealing element (1) and the sealing ring (3) against the force of the spring. Each groove is divided into two channels by a wedge-shaped partition (7) extending from the end wall of the groove (6). During speed changes of the rotating sealing ring (3), the gap (S) is maintained by high pressure at the closed end of the channels. The partition (7) is designed to offer little resistance to gas flow in the channel.
Patent CA-2205363-A1 (CA)
Title: Process for coating a substrate with a powder paint composition
Inventor: SCHULZE-HAGENEST DETLEF
IPC: B05D1/06
Filed: 1995-11-15
Abstract: The invention relates to a process for coating a substrate with a powder paint composition. The powder paint particles are first charged by friction or induction in the presence of magnetic or non-magnetic particles, are next transported and are then applied to the substrate or applied to a transfer medium and subsequently transferred to the substrate, by means of an electric field between the substrate respectively the transfer medium and the means of transport whereafter the powder paint composition is cured or fused to obtain a powder coating.
Patent CA-2206807-A1 (CA)
Title: Materiau de construction decoratif et ses procedes de fabrication
Inventor: TIKHONOVA NAILIA A
IPC: C04B14/22
Filed: 1995-11-07
Abstract: L'invention concerne un matériau de construction décoratif tel qu'un carreau de verre, produit à partir de granulés de verre recyclés. Ce matériau présente une surface externe lisse sensiblement exempte de défauts sur un coté du carreau. Il est possible de fabriquer des carreaux à une ou à deux couches. Au cours de la fabrication, on fait appel à un liant et on régule la température maximale ainsi que le gradient de température dans les couches, lorsque faire se peut, afin de garantir une surface externe parfaite.
Patent CA-2207825-A1 (CA)
Inventor: SCHMIDT STEVEN L
IPC: B32B27/08
Filed: 1995-12-11
Abstract: An oxygen scavenging composition, method of making the same, and multilayer container structures thereof which enable accelerated activation of the oxygen scavenging property and/or barrier layers to prevent depletion of the oxygen scavenging property. In making a container wall, or a precursor thereof such as a preform, a base polymer is used including post-comsumer polyethylene terephthalate (PC-PET) and an oxygen scavenger. A resulting multilayer package wall may include an oxygen scavenging core layer and an inner layer of a material having a high oxygen barrier condition prior to product filling, and a second lower oxygen barrier condition after product filling. The inner layer thus allows oxygen entrapped in the container during product filling to be transmitted through the inner layer and absorbed by the core oxygen scavenging layer, in order to increase the product shelf life.
Patent CA-2214697-A1 (CA)
Title: Polygonal puzzle capable of three-dimensional construction, such as toy construction, such as toy construction
Inventor: CUNNINGHAM DOUGLAS
IPC: A63H33/08
Filed: 1997-09-04
Abstract: A toy construction kit, particularly a three-dimensional puzzle, including a plurality of generally regular polygonal construction elements that can be releasably assembled, through tab-and-slot, hinged interengagement, to form a toy construction.
Patent CA-2214769-A1 (CA)
Title: Fuel-cells generator system and method of generating electricity from fuel cells
Inventor: KAWATSU SHIGEYUKI
IPC: H01M8/06
Filed: 1997-09-05
Abstract: A fuel-cells generator system of the present invention carries out an appropriate control to ensure a high output even when a catalyst carried on an electrode is poisoned.  An electronic control unit of the fuel-cells generator system measures an output voltage E of fuel cells, a concentration D of carbon monoxide included in a gaseous fuel, a temperature T of the fuel cells, and a pressure P of the gaseous fuel at steps S100 through S130.  When the output voltage E has been lowered by the amount of change that is not less than a predetermined voltage E0 at step S140 and when the concentration D of carbon monoxide measured by a carbon monoxide sensor represents the poisoned state of a catalyst carried on the anodes of the fuel cells at step S150, the temperature T of the fuel cells is gradually increased at step S180.  The pressure P of the gaseous fuel is also gradually increased at step S190, in order to enable a partial vapor pressure in the gaseous fuel to be kept at a constant value even under the condition of the increased temperature of the fuel cells. This structure keeps the partial vapor pressure in the gaseous fuel at a constant level, thus preventing the partial pressure of hydrogen in the gaseous fuel from being lowered and ensuring a continuous supply of hydrogen to the anodes.
Patent CA-2217086-A1 (CA)
Title: Method of impregnating wood with liquid
Inventor: MURAKI TOSHIO
IPC: B27K3/16
Filed: 1997-09-26
Abstract: A method of impregnating wood with liquid puts the wood in a pressure vessel, immerses the wood in the liquid contained in the pressure vessel, pressurizes the liquid to compress the wood while keeping the temperature of the wood at or above the softening point of the wood, and reduces pressure in the pressure vessel so that the wood may cause volume relaxation in the liquid and be impregnated with the liquid.
Patent CA-2219561-A1 (CA)
Title: Parts alignment device
Inventor: MIURA MASAAKI
IPC: B65G47/256
Filed: 1997-10-29
Abstract: The sorting and alignment of welding nuts are conducted with stability regardless of a variation in number while implementing lower noise. A charging shoot is provided on its end of obliquely downward slope with a nut-storing part, and a face plate facing obliquely upward is disposed in a tilted position so as to define the nut-storing part. The face plate is formed with stainless steel of non-magnetic material.      Permanent magnet is provided on the back of the face plate so as to move on a specific rotational locus, and moved in rotation by a motor. A posture shift guide is disposed on the front face of the face plate and a specific circumference corresponding to the specific locus to shift welding nuts attracted by the permanent magnet into their lying postures.      Out of the welding nuts in their lying postures, the ones each with its base in opposition to the face plate is flipped by a regulating block to be dropped in the nut-storing part, while only the ones each with its top face in opposition to the face plate is allowed to pass into an alignment and feed guide, after which they are sequentially stored in aligned positions in an alignment and feed guide to be fed to a nut feeding equipment.
Patent CA-2221076-A1 (CA)
Inventor: BEAL JOSEPH D
IPC: B21D26/055
Filed: 1997-11-14
Abstract: This invention defines an improved method for superplastic forming (SPF) of metallic parts in which a cutout is formed in the blank from which the parts will be formed, and a secondary sheet is located between the blank and the pressurized gas. The cutout area of the blank becomes stretched so that there is minimal thinning in the air near the peripheryof the cutout(s) in the blank, the secondary sheet is required to carry the gas pressure and to form the parts.
Patent CA-2222640-A1 (CA)
Title: Process for producing a landfill
Inventor: MINET BRENT F
IPC: G01N11/00
Filed: 1993-07-14
Abstract: A process for producing a landfill from a specified landfill site is disclosed.  In the first step of this process, leachate from the landfill site is collected. Thereafter a specified shredded material is contacted with the leachate to age it, the horizontal permeability of the aged shredded material is then tested with a specified permeability tester; if the test is successful, the shredded material is used in the landfill and covered with waste material.
Patent CA-2224008-A1 (CA)
Title: The treatment of hiv and other viral infections using combinatorial therapy
Inventor: LAMBERT DENNIS M
IPC: C07K14/16
Filed: 1996-06-06
Abstract: Novel antiviral combinations for the treatment or prevention of viral infections, in particular, HIV, are disclosed. This new antiviral therapy employs either DP-178 or DP-107, viral fusion inhibitors, in combination with at least one other antiviral therapeutic agent. The combinations of the invention are better than single therapies alone, and in certain cases are synergistic. The use of DP-178 or DP-107 is an ideal therapy to combine with another antiviral, given both the novel mechanism which this therapeutic blocks HIV transmission and the non-toxicity of the therapeutic.
Patent CA-2225660-A1 (CA)
Title: Liquid purification apparatus
Inventor: BRIGGS WILLIAM ERNEST
IPC: C02F1/50
Filed: 1998-02-09
Abstract: The invention relates to a liquid purification apparatus (10) adapted to employ the purifying affects of the heavy metal silver under electrolysis. The apparatus (10) has a chamber (14) formed with spaced apart inlet and outlet openings (16,18) whereby liquid can flow through chamber (14) from inlet opening (16) to outlet opening (18). An electrolytic unit (20) has at least two spaced apart silver electrodes (22,24) mounted in chamber (14) in the path of the liquid flow. An electric circuit means (32) controls operation of electrodes (22,24) with a first timing means (62) for providing a pulsed current to electrodes (22,24).
Patent CA-2225987-A1 (CA)
Inventor: KAJIYA HIROMI
IPC: H01M50/55
Filed: 1997-12-24
Abstract: The invention relates to a square type enclosed storage battery of medium to large capacity, more particularly to a technology for realizing high volume capacity density or high output density, and is hence intended to present a square type enclosed storage battery of medium to large capacity of high reliability and small temperature rise, comprising a electrode plate group laminating plural layers of positive plates 8a and negative plates 8b through separators 8c, and a synthetic resin case 10 for accommodating the electrode plate group 8, in which a nickel-made terminal 2 has a pair of screws 2a as external output terminals of positive and negative electrodes, a pole portion 2b, a sealing groove 2c, and a current collector 2f, their central axes are designed to be nearly on a same line, plural current collectors 2f project from a flange 2d to the electrode plate group side, and the terminal 2 is fixed by a synthetic resin cover 1.
Patent CA-2226343-A1 (CA)
Inventor: CHUNG ALEX HAEJOON
IPC: C11D1/62
Filed: 1996-06-14
Abstract: The present invention relates to liquid and solid biodegradable fabric softener compositions combined with nonionic or anionic esters of a non-allylic alcohol perfumes. These compositions exhibit improved perfume longevity and reduced environmental impact.
Patent CA-2227142-A1 (CA)
Title: Piece d'appui pour la refection des valvules cardiaques
Inventor: WOOD ALFRED EDWARD
IPC: A61F2/24
Filed: 1996-07-17
Abstract: Pièce d'appui pour la réfection des valvules cardiaques auriculo-ventriculaires. Cette pièce (10) comporte un élément allongé (12) constitué d'un tissu apte à se déformer, lors de la mise en oeuvre, pour adopter une configuration sensiblement annulaire dimensionnée pour s'adapter à la base des valves de la valvule cardiaque. Ledit élément allongé (12) est de forme sensiblement cuboïde et formé de deux couches superposées (34, 36) du tissu, ces couches (34, 36) étant liées l'une à l'autre par des coutures longitudinales (14, 16) à lisières opposées (24, 24', 28, 28') orientées vers l'intérieur.
Patent CA-2227464-A1 (CA)
Inventor: GUELCK TANYA
IPC: B65D17/34
Filed: 1998-03-30
Abstract: A tab that is attached to the top of a container (specifically aluminum drinking cans) that opens the container. A section of the same tab has a raised surface for easy manipulation of the tab. By pulling the tab 90°  the container is opened. The tab has a point of attachment from where it can be horizontally rotated. The tab has an enlarged end for covering the opening of the container by rotating the tab 180°. With the enlarged tab portion being larger than the opening that it covers.
Patent CA-2228057-A1 (CA)
Title: Composite panelling materials for displaying back-lit graphics and colours
Inventor: LEACH JAMES R
IPC: G09F13/12
Filed: 1998-01-28
Abstract: A composite panel material for the back-lit display of graphic and alphanumeric designs and colour fields as disclosed which includes regions that appear metallic and highly reflective when front-lit but which when back-lit transmit a portion of the back-lighting to give a "see-through metal" effect. Panelling material according to the design comprises a transparent base medium, daytime design images which are visible when the panel material is front- but not back-lit, and a partially reflective metallized element which appears opaque and shiny when front- but not when back-lit, of a pre-selected degree of transparency to permit the viewing of one set of images and colours in front-lighting and a different set under back-lighting of the panel material.
Patent CA-2228837-A1 (CA)
Title: Laser beam welding apparatus
Inventor: MATSUO KAZUHIDE
IPC: B23K26/064
Filed: 1998-02-05
Abstract: After a workpiece introduced into a welding station by a feed mechanism is positioned and fixed in the welding station, the workpiece is welded by laser beams guided by scan heads. Each laser beam is applied from one of the scan heads to a location on the workpiece through a beam path switching mirror of a beam path switcher to weld the location on the workpiece.      Thereafter, the beam path switching mirror is retracted to guide the laser beam from another one of the scan heads to another location on the workpiece to weld the other location on the workpiece.
Patent CA-2228966-A1 (CA)
Title: Detergent compositions containing amine and specially selected perfumes
Inventor: VELAZQUEZ JOSE MARIA
IPC: C11D3/50
Filed: 1996-08-01
Abstract: Laundry detergent compositions containing amine detersive surfactants and specially selected perfume components which reduce the malodor of the amine are provided. More specifically, the specially selected perfume components are selected from the group consisting of dodecahydro-3a,6,6,9A-tetramethylnaphtho (2,1-B) furan,3,3-dimethyl-5-(2,2,3 trimethyl-3 cyclopenten-1-yl)-4 pentenol, methyl lonone, cis 3 hexenyl iso butyrate, undecalactone, phenyl ethyl phenyl acetate, hexyl-ortho-hydroxybenzoate, and mixtures thereof.
Patent CA-2229470-A1 (CA)
Inventor: DESANTIS NICOLA
IPC: C07C237/46
Filed: 1997-06-11
Abstract: This invention refers to a new process for the synthesis of (S)-N,N'-bis[(2-hydroxy-1-(hydroxy-methyl)ethyl]-5-[(2-hydroxy-1-oxopropyl]amino]-2,4,6-triiodo-1,3-benzendicarboxamide, of formula (III), starting from 5-amino-2,4,6-triiodo-1,3-benzendicarboxylic acid dichloride characterized by a new step of chromatographic purification through resins of (S)-5-[[2-(acetyloxy)-1-oxopropyl]amino]-2,4,6-triiodo-1,3-benzendicarboxylic acid dichloride, which enables the direct conversion to the compound of formula (III), without preventive isolation.
Patent CA-2230944-A1 (CA)
Title: Structures a couches multiples se pretant au compostage et articles realises avec ces structures
Inventor: EL-AFANDI ALI ZAKAREYA
IPC: B32B27/08
Filed: 1996-09-30
Abstract: L'invention concerne une structure à couches multiples se prêtant au compostage. La structure à couches multiples peut se présenter sous la forme d'un film, d'une feuille, d'un stratifié et similaire et elle comporte une couche centrale (12) ayant une première surface (13) et une seconde surface (15), une première couche anti-blocage (14) couvrant la première surface de la couche centrale et une seconde couche anti-blocage (16) couvrant la seconde surface de la couche centrale. La couche centrale comprend une composition polymère d'un polymère hydrolysable contenant des groupes acide lactique et ayant une température de transition vitreuse (Tg) inférieure à 20 ·C environ. Les première et seconde couches anti-blocage contiennent une composition polymère d'un polymère hydrolysable et elles ont une température Tg au-dessus de 50 ·C environ. Cette structure à couches multiples peut être utilisée pour préparer des sacs et des emballages.
Patent CA-2231432-A1 (CA)
Title: Procede et dispositif de separation par voie humide de gaz acides
Inventor: LANG DIETHARD
IPC: B01D53/40
Filed: 1996-09-05
Abstract: L'invention concerne un procédé et un dispositif de séparation par voie humide de gaz acides contenus dans des fumées, au moyen de suspensions contenant des agents d'absorption. Selon ce procédé, les fumées sont acheminées dans un laveur (2) à canaux rétrécis (8) puis accélérées, dans un premier étage à contre-courant des gouttelettes de la suspension et dans un second étage dans le même courant que les gouttelettes de la suspension, la suspension étant déjà décomposée en gouttelettes avant ou au début de la section d'accélération. La forme des canaux (8) empêche tout reflux de la suspension dans la section d'accélération. Les fumées et les gouttelettes en suspension réagissent et les gouttelettes sont déviées de 180· en direction de la force de gravité dans un premier séparateur goutte à goutte (3) raccordé.
Patent CA-2233405-A1 (CA)
Title: Load-bearing structure, section of box structure and vehicle box comprising such structures
Inventor: DEVALLEZ ALAIN
IPC: B62D31/04
Filed: 1998-04-16
Abstract: The support structure (10) for the body of a vehicle is designed to be radial to the longitudinal axis of the body and to be appropriate to fit on to the structural elements (2A,2B), which are parallel to the longitudinal axis. The support structure is formed on a base plate, which carries, at least, one rib plate (1A-1E). The ribs are shaped to form the desired external structure of the body of the vehicle and the structural elements of the frame (2A,2B,5) are designed to be fitted into notched locations (3,4) in the ribs. The ribs also carry a further series of cut outs (6) designed to receive the trim elements (7).
Patent CA-2234516-A1 (CA)
Title: Electrochemical half-cell
Inventor: HEROLD HEIKO
IPC: C25B9/19
Filed: 1998-04-09
Abstract: The invention relates to an electrochemical half-cell (1) with a gas diffusion electrode (7) as cathode or anode wherein the gas chamber (6) is divided in particular into two or more gas pockets (6a, 6b, 6c) arranged one above another,the electrode chamber (2) of the half-cell (1) being divided into compartments (2a, 2b, 2c) which. for the passage of the electrolyte (23), are connected to one another in cascade fashion via chutes (17), (18), (19).
Patent CA-2236785-A1 (CA)
Inventor: HEDBERG MATS
IPC: H03K19/0185
Filed: 1996-11-06
Abstract: A receiver device comprises two input circuits, connected in parallel, for receiving digital information in the form of electrical differential binary signals within a broad range of common-mode voltages. The input circuits in turn comprise transistors (14, 15, 16, 17, 24, 25) in differential input arrangements for receiving said signals. Said transistors (14, 15, 16, 17, 24, 25) of both input circuits are of one and the same type, whereby the receiver device is capable of handling higher speeds. Controlled activation and deactivation of a first one of said input circuits further enhances the speed capabilities of the receiver device.
Patent CA-2243686-A1 (CA)
Inventor: UFFNER MICHAEL G
IPC: F16B12/26
Filed: 1998-07-21
Abstract: An easy to assemble sports shelf unit with a snap together construction is provided to support and display a variety of items, such as: trophies, awards, sports gear, pictures, and memorabilia. The attractive sports shelf unit has a contoured wall member to which is connected to a special snap-together shelf assembly with upper and lower shelves. The shelf assembly is supported and connected to brackets and an elliptical sloping support member which extends forwardly from the lower portion of the wall member. The elliptical sloping support member provides a lower display area to display logos, team emblems or other sports indicia. The upper portion of the wall member has an offset circular display area to display other sports indicia. Pegs can be connected to lower portion of the wall member, below the shelf assembly, to hang sports gear, jerseys, hats, and other clothing.
Patent CA-2243872-A1 (CA)
Title: High purity oxygen for ethylene oxide production
Inventor: DAY ROGER WILLIAM
IPC: C07D301/08
Filed: 1998-07-22
Abstract: This invention is directed to a method for producing ethylene oxide comprising feeding ethylene, high purity oxygen and a ballast gas with a recycle gas in a catalyst filled reactor to form a gaseous mixture; passing the gaseous mixture from the reactor to a recovery unit to selectively separate ethylene oxide and carbon dioxide containing gas; passing at least a portion of the carbon dioxide containing gas to a stripping unit to selectively separate carbon dioxide and a waste gas; passing at least a portion of the waste gas to purge and another portion for recycling as the recycle gas; and recovering ethylene oxide from the recovery unit.
Patent CA-2244470-A1 (CA)
Inventor: WONG SAMSON CHUN-TAT
IPC: H01R13/719
Filed: 1998-08-05
Abstract: An apparatus for high current DC conductor termination. The apparatus includes a base, an insulated terminal projection, first and second opposing connectors, and first and second bus bars. The base is securable to an electrical device. The insulated terminal projection extends from the base and has first and second opposite sides. The first and second opposing connectors are mounted on the opposite sides respectively of the terminal projection, the first and second opposing connectors being substantially in line and operable to connect to first and second conductors respectively. The first and second bus bars are connected to the first and second connectors and extend closely adjacent each other inside the projection and are operable to connect to the electrical device for electrical current conduction.
Patent CA-2244721-A1 (CA)
Title: Extruder
Inventor: KIRJAVAINEN KARI
IPC: B29C48/10
Filed: 1997-02-07
Abstract: The invention relates to an extruder comprising at least two conical stators and at least one rotatable rotor situated between the stators. The extruder comprises a supply conduit (3) for supplying material into the space between the stators (2), and the rotor (1) comprises at the orifice of the supply conduit (3) openings (5) via which the material to be supplied can flow to the interior of the rotor (1). The end of the supply conduit (3) and ducts formed of the openings (5) and/or grooves (7, 7a, 7b) of the rotor (1) are designed in such a way that the sum of the areas of the sections of ducts visible at the end of the supply conduit (3) remains substantially constant at each moment when the rotor (1) rotates. In such a case, the material to be supplied through the supply conduit (3) can flow evenly from the supply conduit (3) to the grooves (7, 7a, 7b) of the rotor (1) and via the openings (5) so that there will be no pumping effect in the flow of material.
Patent CA-2245600-A1 (CA)
Title: Support de formation d'image
Inventor: SUZUKI MINORU
IPC: B41M5/41
Filed: 1998-08-24
Abstract: Cette invention concerne un support de formation d'image sous la forme d'une feuille de papier revêtue d'une couche de microcapsules. Cette couche est formée d'au moins un type de microcapsules remplies de teinture liquide et dont la coquille est en résine dont les caractéristiques de tenue à la chaleur et à la pression sont telles qu'à une température et à une pression d'écrasement données, elle laisse la teinture liquide s'échapper.