baber/WOPTO huggingface dataset:
Patent CA-2141330-A1 (CA)
Title: Amidoacids by alkali hydrolysis of amidoesters
Inventor: BOUWMEESTER JOHANNES G B
IPC: C07C233/04
Filed: 1993-07-22
Abstract: A process for the alkali hydrolysis of an amido ester to the corresponding amido acid is disclosed. The process is characterized by the steps of: A) hydrolyzing, in an aqueous alkaline media, an amido ester represented by formula (I), wherein R is selected from C1-20 alkyl, R1 is selected from C2-14 alkylene and C2-14 alkenylene, and R2 is selected from hydrogen and alkyl, aryl and aralkyl groups containing 1-10 carbon atoms, and R3 is selected from C1-8 alkyl; with at least one equivalent of an alkali metal salt per mole of amido ester at 20-160 ·C to produce an amido acid salt; and B) acidifying the amido acid salt with at least 1.0 equivalents of a strong acid, per mole of amido acid salt at, 20-160 ·C to produce an amido acid. The process gives a high yield and a good selectivity for the amido acid.
Patent CA-2141652-A1 (CA)
Title: Fluorinated vitamin d3 derivative
Inventor: DORAN THOMAS I
IPC: C07C401/00
Filed: 1995-02-01
Abstract: This invention is for 1.alpha.-fluoro-25-hydroxy-16-ene-23-yne-cholecalciferol, which can be further characterized by the formula:      and which is useful as an agent for the treatment of sebaceous gland diseases such as acne and sebhorreic dermatitis. It can be prepared by removing the silyl protecting groups from a corresponding compound with silyl protected hydroxy groups.
Patent CA-2142594-A1 (CA)
Title: Segmented document transport section having accelerated take-away belts
Inventor: RICCIARDI MARIO
IPC: B65H1/02
Filed: 1993-08-18
Abstract: A transport section for a document-handling machine includes a pair of horizontally-oriented feed belts (1) which act in conjunction with segment flaps (4) on a segmented, vertically-oriented feed belt (3) to deliver groupings of mail items (5) in a feeding direction. A set of horizontally-oriented take-away belts (7) receives documents from the horizontally-oriented feed belts (1) and transports them at an accelerated speed with respect to the horizontally-oriented feed belts (1). The accelerated speed of the take-away belts (7) is used to compensate for the acceleration of each given document by the tips of the flaps (4) as the flaps round the corner at the end of their run.
Patent CA-2144170-A1 (CA)
Title: Fluororubber coating composition
Inventor: FUKUSHI TATSUO
IPC: C08J7/04
Filed: 1993-11-23
Abstract: The invention provides a fluoroelastomer coating composition comprising an organic solvent solution of fluoroelastomer gum, a Schiff base is the reaction product of an aminosilane compound, and preferably a partially hydrolyzed and polymerized aminosilane compound, with an aldehyde or ketone.
Patent CA-2148850-A1 (CA)
Title: Flexible iron-on patch for soft clothing
Inventor: KENYON SARAH
IPC: A41H27/00
Filed: 1995-05-08
Abstract: A soft, flexible patch which will not fray, but which may be ironed on to the softest garments, especially suitable for decoration or reinforcement of fleece or flannel sweatsuits, as well as a method of manufacturing such a patch. The patch is made of a layer of fleece material such as flannel, bonded to a layer of heat-fusible transfer web. The patch is trimmed to a pattern and bound with thread using an overlock stitch of 2.5 to 5 stitch per cm density and approximately 5 2 mm depth.
Patent CA-2149004-A1 (CA)
Inventor: OUELLET LUCIE
IPC: A45C11/00
Filed: 1995-05-09
Abstract: La présente invention divulgue un contenant à message destiné à contenir un message écrit sur papier et destiné à être déposé à l'intérieur du cercueil d'un défunt avant son inhumation et destiné à maintenir la confidentialité dudit message écrit sur papier. Le contenant à message est caractérisé par une opacité de ses côtés de manière à ce que le message y contenu ne soit pas visible de l'extérieur du contenant. Le contenant possède aussi une ouverture de faible dimension apte à recevoir ledit message écrit, l'ouverture ayant une configuration empêchant à un être humain de s'y insérer ses doigts dans le but de facilement retirer le message écrit du contenant une fois que le message écrit y est introduit, permettant ainsi de préserver la confidentialité du message écrit lorsqu'introduit dans le contenant à message.
Patent CA-2153134-A1 (CA)
Inventor: AUSLANDER JUDITH D
IPC: C09D11/00
Filed: 1995-06-30
Abstract: An ink composition especially suited for ink jet printers that use bubble jet technology. The ink compositions contain pigments obtained by emulsion polymerization of sub-micron size particles dispersed in water. Either fluorescent or non-fluorescent dyes can be added to the pigments. Coalescing agents or humectants are added to the ink formulations to improve the film forming properties as well as prevent premature drying. Surfactants are added for dispersion stabilization.
Patent CA-2155192-A1 (CA)
Title: Ink reservoir baffle
Inventor: VAUGHN JEFFREY MOSS
IPC: B41L27/08
Filed: 1993-08-27
Abstract: A printing apparatus is disclosed which includes an ink reservoir, an anilox roller partially submerged in the ink reservoir, and a baffle having an array of flow restrictors submerged in the ink in the reservoir. The baffle dissipates flow energy in the ink reservoir generated by rotation of the anilox roller. In one embodiment the flow restrictors comprise parallel pegs. In a second embodiment the flow restrictors comprise parallel bristle tufts.
Patent CA-2156430-A1 (CA)
Inventor: SMITH IAN CHRISTOPHER
IPC: H04B10/50
Filed: 1994-03-30
Abstract: An  optical beam having a high radio-frequency modulation is generated at output (10) by generating in source (4a) a lower frequency modulation, using it to control the optical output (3) of a laser (1) and further modulating the optical output (3) in an optical modulator (6) by a control signal having another lower frequency modulation generated by source (4b). Either or both of the lower frequency modulations also carries an information containing modulation. The effect of the optical modulator (6) is to up-convert the modulation carried by the optical beam by the modulation frequency of the control signal. The optical modulator (6) may be a Mach-Zehnder interferometer. The non-linearity of such a modulator with respect to its control input may be exploited by selecting the amplitude of the control signal such that the optical output (3) is upconverted by an integer multiple of the modulation frequency generated by source (4b). These methods avoid the need to apply the high frequency modulation to either the laser input (2) or the control input directly (7).
Patent CA-2157298-A1 (CA)
Title: Clip-type article carrier
Inventor: SUTHERLAND ROBERT L
IPC: B65D67/02
Filed: 1994-12-19
Abstract: A clip-type carrier (10) especially suited for carrying beverage cans or other flanged articles. The carrier is comprised of a panel (12) having slots (26, 28) in folded, wedge-shaped inner support sections (18) and in downwardly folded outer support sections (14) for receiving the can chimes. Reinforcing flaps (30) connected to the outer support sections (14) are folded against the underside of the outer support sections so that the unconnected edges of the flaps contact adjacent articles (C). A reinforcing strip (52) may be employed to overlie the inner support sections (18) of the carrier.
Patent CA-2161728-A1 (CA)
Inventor: PETERSON WARREN A
IPC: B23K35/00
Filed: 1995-10-30
Abstract: Two steel members are resistance welded using a filler therebetween in the form of either an insert or a metallized layer on the inner surface of one steel member.      The steel members have respective compositions at least one of which comprises at least one alloying element having a concentration which contributes substantially to solidification cracking extensive enough to produce an unacceptable weld fracture. The filler has a composition which, during welding, melts and mixes with molten metal from the steel members, at the welding location, and dilutes the concentration there of one or more of the alloying elements which contribute substantially to solidification cracking. This reduces substantially the contribution, to solidification cracking, of each alloying element which has been so diluted. The cumulative dilution of these alloying elements is sufficient to produce an acceptable weld fracture.
Patent CA-2161750-A1 (CA)
Inventor: FREI HANS-PETER
IPC: A47J31/40
Filed: 1995-10-30
Abstract: A brewing head of an espresso maker is described wherein charging with ground coffee and disposal of coffee grounds can be effected in a very simple manner with a cost-effective configuration of the brewing head. For this purpose, the brewing head is divided into two functional units, with the upper section being configured as a carousel. The stationary lower section comprises the brewing chamber, which is provided with a lifting piston controlled by the turning motion of the upper section for the elimination of the coffee grounds. The rotatable uppersection comprises a brewing piston, which plunges into the brewing chamber during the brewing process, and a clearing blade, which transports the coffee grounds lifted out of the brewing chamber by the controlled lifting piston into a disposal opening.
Patent CA-2161814-A1 (CA)
Title: Analogs of botanic seed
Inventor: BOWER BARBARA K
IPC: A01C1/00
Filed: 1991-10-24
Abstract: A manufactured seed is disclosed which comprises a plant embryo preferably encapsulated, or at least in contact with, a hydrated oxygenated gel. The gel can be oxygenated by passing oxygen gas through a gel solution before curing the gel or by exposing the gel to oxygen gas after curing. The gel is preferably oxygenated by adding to an uncured gel solution a suitably stabilized emulsion of a perfluorocarbon compound or a silicone oil, which compounds are capable of absorbing large amounts of oxygen, and are non-toxic and inert. The seed analog can further comprise an outer shell at least partially surrounding the gel and embryo, thereby forming a capsule. The outer shell preferably is shaped to aid the radical of a germinating embryo in protrusively rupturing the capsule, thereby facilitating successful germination and minimizing incidence of seedling malformation. Other shell materials are selected to provide requisite rigidity to the capsule while imparting minimal restriction to successful germination. In a preferred embodiment for germinating embryos having cotyledon(s), at least the cotyledons are enclosed in a porous material resistant to penetration by the growing cotyledon(s), and the embryo and porous enclosure are encapsulated in a hydrated gel.
Patent CA-2163983-A1 (CA)
Inventor: BAKER FRANKLIN W
IPC: B60R25/02
Filed: 1993-11-29
Abstract: Lorsqu'il est fixé à un volant de véhicule (50), cet appareil (10) le bloque et dissuade de déplacer ce véhicule sans autorisation. Il comporte une partie arquée (12) dont les dimensions permettent sa fixation sur la jante du volant (50). Un ensemble de verrouillage (14) actionné par une clé et fixé à la partie arquée (12) coopère avec un ensemble barre de verrouillage (16). Lorsque cette barre (16) est introduite et bloquée par le dispositif de verrouillage (14), la partie arquée (12) est fixée au volant (50). Un manchon (13) dimensionné pour recevoir un ensemble barre de blocage du volant (20) est ménagé au fond (12B) de la partie arquée (12). Cette barre (20) peut être fixée en position repliée ou dépliée.
Patent CA-2164436-A1 (CA)
Title: Method for diffusing an odoriferous substance
Inventor: BARBIER JEAN-PAUL
IPC: A61L9/04
Filed: 1995-04-05
Abstract: Method for diffusing an odoriferous substance packaged in a container, and gaseous mixture comprising a gaseous odoriferous substance and an odourless, breathable gas packaged in a container at a pressure of at least 5 bars.
Patent CA-2164539-A1 (CA)
Inventor: LIN CHAN-YEN
IPC: A42B3/28
Filed: 1995-12-06
Abstract: A protective helmet including a body portion formed at a top thereof with a first hole and having a hood extending outwardly from the top of the body portion thereby forming a passage communicating with the first hole, an intermediate layer fitted on an inner surface of the body portion having a second hole communicating with the first hole of the body portion and a plurality of first grooves extending radially from the second hole, a foamed rubber layer adhered to the intermediate layer and formed with a plurality of raised portions and second grooves which communicate with the first grooves, and a cloth lining adhered on the foamed rubber layer.
Patent CA-2167270-A1 (CA)
Title: Safety hypodermic needle
Inventor: POULSEN THOMAS EDWARD
IPC: A61M5/32
Filed: 1993-07-14
Abstract: The several embodiments include a hypodermic needle (1) with a hollow member (5A) positioned over a portion of the needle, thus covering that portion of the needle. Prior to and during use, the hollow member is held away from the piercing end of the needle to allow it to be used m the normal manner. After the needle has become contaminated, a simple action by the user places the hollow member in a position covering the piercing end of die needle and the hollow member is supported in this position against rearward pressure. The hollow member is similarly kept from sliding off the end of the needle.
Patent CA-2167682-A1 (CA)
Inventor: PRZYTULLA DIETMAR
IPC: B29C49/48
Filed: 1994-07-22
Abstract: L'invention concerne un conteneur de palettes (10) qui comprend une palette de base (12) sur laquelle se trouve un contenant intérieur en plastique (14) et une enveloppe de soutien (16) qui entoure hermétiquement le contenant intérieur en plastique (14) et qui est reliée côté fond, de manière fixe (mais cependant amovible) à la palette de base (12). De manière générale, la soudure épaissie réalisée par sertissage, située dans le dessous du conteneur (comme dans le dessus (22)), formée pendant le processus de moulage par soufflage, par sertissage de l'ébauche tubulaire, empêche le liquide résiduel de s'écouler en direction de la soupape de vidange (28). Selon l'invention, il est prévu que les soudures réalisées par sertissage (30) dans le contenant intérieur en plastique (14) soient formées dans deux parois latérales diamétralement opposées. Une soudure réalisée par sertissage (30) débouche directement dans la tubulure intégrale de la soupape de vidange (28) qui se trouve de ce fait dans le milieu de la paroi latérale comportant la soudure réalisée par sertissage (30) qui y débouche, pour la première fois dans la zone de sertissage du flexible autour du mandrin de soufflage (40) situé à l'intérieur du flexible. Le filetage ou un bourrelet de raccordement est moulé de manière calibrée avec exactitude sur le dispositif de mandrin de soufflage (40), ce qui permet d'éviter de souder la tubulure et d'aléser le contenant, avec tous les aléas que cela comporte, tout en ayant de meilleures propriétés de vidange résiduelle du contenant intérieur (14).
Patent CA-2177459-A1 (CA)
Title: Carbonated beverage
Inventor: KAPER LOURIS
IPC: A23L2/00
Filed: 1996-05-27
Abstract: The invention  relates to a carbonated coffee beverage which has been packaged under pressure in a pressure-resistant closed container, which beverage is based on coffee extract, the coffee beverage having been packaged in the closed container in the presence of CO2 and nitrogen, which beverage preferably contains sugar and/or sweetener.
Patent CA-2178625-A1 (CA)
Inventor: HETZER NORBERT
IPC: G09F15/00
Filed: 1994-11-11
Abstract: Le cadre rabattable présenté comprend plusieurs montants (1-4) formant un polygone, chacun de ces montants présentant un profilé inférieur (5), un profilé supérieur (6) et au moins un élément élastique (7). En disposant une bande-support (18) à l'extrémité libre d'une traverse intérieure (22), on obtient un intervalle satisfaisant en hauteur, entre l'affiche (9), ou élément analogue, à disposer dans le cadre et la face-support (34), ce qui permet d'avoir une bonne ventilation à l'arrière.
Patent CA-2179615-A1 (CA)
Title: Commercial ethanol production process
Inventor: CHIEFFALO RODGER
IPC: A23K10/38
Filed: 1994-12-16
Abstract: A method of processing waste is disclosed wherein the municipal solid waste is segregated and processed to recover reusable rubber, metal, plastic, glass and the remaining organic portion of the waste stream is used to make ethanol and other chemicals. One process utilizes a pretreatment step with dilute sulfuric acid to reduce the heavy metal content of the cellulosic component of the municipal solid waste which can inhibit the fermentation of the sugars obtained from such waste. In another, the heavy metal content of the cellulosic component of municipal solid waste is removed via an ionic exchange process, after hydrolysis with sulfuric acid. A process for an economical, energy efficient production of ethanol from municipal solid waste is also disclosed.
Patent CA-2182400-A1 (CA)
Inventor: DILNIK REBECCA LYN
IPC: A61F13/15
Filed: 1996-07-30
Abstract: An absorbent article, such as a sanitary napkin, is provided having an absorbentbetween a cover and a baffle. The absorbent article also includes an inwardly directed attachment panel adapted to be folded around at least a portion of the crotch of the undergarment. To facilitate ease of placing the sanitary napkin in an undergarment prior to use, the panel is held in an outward direction, relative to the longitudinal side of the absorbent, by a frangible securement bond. The frangible fastener is affixed to one surface of the panel and has a bond strength of less than about 500 grams. When the wearer is ready to secure the article in the undergarment, the bond is easily broken by the wearer and the panel is appropriately positioned.
Patent CA-2184931-A1 (CA)
Title: Aqua-band
Inventor: ADAMSON SCOTT M
IPC: B63B35/73
Filed: 1996-10-09
Abstract: A length of material, attached in specific areas to form 'loops' and used to connect common recreational floatation 'tubes', used as water toys, together to form a larger floatation device.
Patent CA-2185872-A1 (CA)
Title: Apparatus and method for an anodic oxidation biocidial treatment
Inventor: WURZBURGER STEPHEN RAY
IPC: C02F1/467
Filed: 1996-09-18
Abstract: An apparatus for destroying bacterial pathogens including at least one pair of electrodes secured in a housing configured to constrain flow of water through the region between the electrodes. In one construction, the electrodes are supported in a tube with sides of each member of an electrode pair conforming to the inner surface of the tube and electrode surfaces form a slotted space through which the water passes. The electrodes and space between the electrodes arc also subject to a magnetic field which reduces rate of deposition of calacerous deposits on the electrode surface thereby extending the period of time between required cleaning of the electrodes. The electrodes can be simple slabs or screens or both. The electrodes are preferably tin, titanium, brass, iron or stainless steel.
Patent CA-2185944-A1 (CA)
Title: Cement with air-cooled slag and silica fume
Inventor: HOPKINS DONALD STEPHEN
IPC: C04B28/04
Filed: 1996-09-19
Abstract: A cement mix based on an inorganic hydraulic cement, for example, Portland Cement, an air-cooled blast furnace slag and micronized silica, for example,' silica fume produces concretes having strength characteristics superior to those achieved by the cement alone; furthermore this cement mix is superior to a corresponding mix based on the inorganic hydraulic cement, and the air-cooled slag without the silica fume, and to a corresponding mix based on the cement and silica fume without the slag; additionally a cost saving in the expensive Portland Cement is achieved by use of the air-cooled slag which is a waste material and cheaper than granulated or pelletized slag.
Patent CA-2186407-A1 (CA)
Inventor: SOLLINGER HANS-PETER
IPC: D21F3/02
Filed: 1996-09-25
Abstract: A paper making machine includes a forming section followed by a press section and followed by a drying section. The press section has at least one shoe press, which is preferably the final press nip. The final press nip is single felted with a bottom, smooth water repelling roll surface on which the web is conducted from the final press nip to a removal point from that roll surface. The drying section includes a first drying cylinder. A top, porous, web transport belt, for instance the dryer wire of the first dryer group, takes the web from the water repelling roll surface generally at the point of removal by means of a suction roll in the endless loop of the transport belt. The transport belt is pressed by the suction roll against the smooth roll surface in the region of the point of removal of the web avoiding an open nip path at that transfer.
Patent CA-2186473-A1 (CA)
Inventor: SAND GUNNAR
IPC: F16F9/36
Filed: 1995-02-09
Abstract: L'invention concerne un dispositif conçu pour un ressort pneumatique. Ce dispositif comporte un cylindre (1) délimité à une de ses extrémités par une paroi d'extrémité fixe (2) et, à son autre extrémité, se trouve un premier guide (3) scellé contre la paroi intérieure dudit cylindre (1) et contre une tige de piston (4) pouvant effectuer un déplacement axial à l'intérieur du cylindre (1). La tige de piston (4) possède un deuxième guide (8) monté de manière à pouvoir coulisser contre la paroi intérieure. Un piston annulaire (9) scellé contre la paroi intérieure et contre la tige de piston (4) est monté sur ladite tige de piston (4) entre les guides (3, 8) de façon à pouvoir coulisser librement. Ceci divise l'espace intérieur du cylindre (1) en un premier et en un deuxième espace partiel (12, 13). En position initiale de non-actionnement du ressort pneumatique, une pression dans le premier espace partiel (12) est supérieure à la pression présente dans le deuxième espace partiel (13). Le piston annulaire (9) est retenu entre les guides (3, 8) sous l'effet de la pression s'exerçant, d'une part, sur une surface (9a) du piston annulaire (9) et, d'autre part, sur l'autre surface (9b) du piston annulaire (9) et sur la surface d'extrémité (4a) de la tige de piston (4).
Patent CA-2189240-A1 (CA)
Title: Filled cut-resistant fiber
Inventor: SANDOR ROBERT B
IPC: D04H3/10
Filed: 1995-05-11
Abstract: A fiber having increased cut resistance is made from a fiber-forming polymer and a hard filler having a Mohs Hardness Value greater than about 3. The filler is included in an amount of about 0.05 % to about 20 % by weight. In preferred embodiments, the fiber-forming polymer is poly(ethylene terephthalate) or a liquid crystalline polyester comprising monomer units derived from 6-hydroxy-2-naphthoic acid and 4-hydroxybenzoic acid. Preferred fillers include tungsten and alumina.
Patent CA-2190265-A1 (CA)
Title: Hepatitis c virus asialoglycoproteins
Inventor: RALSTON ROBERT O
IPC: A61K38/10
Filed: 1995-05-15
Abstract: Two Hepatitis C Virus envelope proteins (E1 and E2) are expressed without sialylation. Recombinant expression of these proteins in lower eukaryotes, or in mammalian cells in which terminal glycosylation in blocked, results in recombinant proteins which are more similar to native HCV glycoproteins. When isolated by GNA lectin affinity, the E1 and E2 proteins aggregate into virus-like particles.
Patent CA-2192521-A1 (CA)
Title: A safety bag, in particular for hygienic purposes
Inventor: CAILLETEAU BENOIT
IPC: B65D30/26
Filed: 1996-12-10
Abstract: A safety bag (1) of flexible material such as a thin sheet of transparent plastics material, the bag having an opening (2) of dimensions appropriate for its use with an edge that is suitable for being bonded to reinforcement (3a, 3b) for facilitating the opening of a passage to the inside of the bag starting from a flattened position in which the opening is closed, said bag also including a first tubular element (4) bonded in leakproof manner to the bag in the vicinity of its opening and extending into the bag from its opening over an appropriate distance, e.g. about 15 cm.  A second tubular element (5) is disposed between the facing walls of the bag (l) and of the first tubular element (4), second tubular element being also bonded in leakproof manner to the bag in the vicinity of its opening and extending to the inside of the bag over a distance greater than that of the first element.