baber/WOPTO huggingface dataset:
Patent CA-2228489-A1 (CA)
Title: Low lead release plumbing components made of copper based alloys containing lead, and a method for obtaining the same
Inventor: GIUSTI ALDO
IPC: C23F1/18
Filed: 1995-08-03
Abstract: Lead brass components for potable water distribution circuits (e.g., plumbing components made of CuZn39Pb3, containing 3 % Pb), also chronium plated ones, are subjected to a lead-selective surface etching to reduce, in operation, the release of Pb caused by Pb surface "smearing", resulting either from machining or molding; said elements are firstly contacted by an aqueous solution of an acid capable of forming soluble Pb salts, preferably a non-oxidizing solution, by simply dipping the components in the solution, e.g., a solution of 0.1 M sulfamic acid, at 20°-50° C for 10 to 50 minutes, and, subsequently, the elements are passivated by immersion into a strong base aqueous solution, e.g., a solution of 0.1 M NaOH at 20°-25° C, for approximately 10 minutes; in this manner, plumbing components made of a copper based alloy containing Pb are obtained, which components, after 15 days of test according to US NSF STD61 procedure, release Pb in an amount less than 0.025 µg for each ml of the internal volume of the component delimited by metallic walls remained in contact with water during the testing period.
Patent CA-2234235-A1 (CA)
Title: Gel formulations containing growth factors
Inventor: FINKENAUR AMY
IPC: A61P17/02
Filed: 1996-09-24
Abstract: Gel formulations containing polypeptide growth factors having human mitogenic or angiogenic activity are provided. The gel formulations are useful for topical or incisional wound healing for cutaneous wounds, particularly in the anterior chamber of the eye. The gel formulations also comprise a water soluble, pharmaceutically or ophthalmically compatible polymeric material for providing viscosity within various ranges determined by the application of the gel. The gel formulations provide controlled release and increased contact time of the growth factor to the wound site.
Patent CA-2234496-A1 (CA)
Inventor: GHOSH ASHIM KUMAR
IPC: C07C2/66
Filed: 1998-04-09
Abstract: Process for the production of ethylbenzene by alkylation over a silicalite alkylation catalyst with the subsequent transalkylation of diethylbenzene with the alkylation catalyst and conditions selected to retard xylene production and also heavies production. A  feedstock containing benzene and ethylene is applied to a multi-stage alkylation reaction zone having a plurality of series-connected catalyst beds containing a pentasil molecular sieve alkylation catalyst which is silicalite of a predominantly monoclinic symmetry having a silica/alumina ratio of at least 275. The feedstock is supplied to the alkylation reaction zone to cause gas-phase ethylation of benzene at a flow rate to provide a space velocity of benzene over the catalyst to produce a xylene concentration in the product of about 600 ppm or less based upon the ethylbenzene content. Periodically the space velocity may be increased to a value which is greater than the space velocity associated with a minimum concentration of diethylbenzene in the alkylation product such that diethylbenzene production is enhanced while minimizing any attendant transalkylation reactions within the alkylation reaction zone. This is accompanied by a relatively low xylene content in the product, specifically no more than 600 ppm based upon the ethylbenzene in the product. The output from the alkylation reactor is applied to an intermediate recovery zone for the separation and recovery of ethylbenzene with the recovery of a polyalkylated aromatic component which is supplied along with benzene to a transalkylation reaction zone where the polyalkylated aromatic fraction is subject to disproportionation to provide a reduced diethylbenzene content and an enhanced ethylbenzene content.  A specific monoclinic silicalite alkylation catalyst has a silica/alumina ratio of at least 300 and has a crystal size of less than one micron.
Patent CA-2239084-A1 (CA)
Inventor: MORTENSEN KENNETH GORDON
IPC: B01D29/01
Filed: 1996-11-28
Abstract: Procédé de recyclage et outil utilisé avec ledit procédé. Un matériau plastique moulé est renforcé par des fibres de carbone de manière à ce que ladite cartouche soit suffisamment rigide pour être réutilisée. Ladite cartouche est moulée par injection à l'aide d'une composition constituée à 60 % en poids de résine fondue de nylon et à 40 % en poids de fibre de verre hachée. La résine possède une température à l'état fondu supérieure à 200 ·C. Un élément de filtre (11) comporte un élément constitué à 100 % de cellulose (12) dans lequel est poussé une partie centrale (13) renforcée par des fibres de carbone réutilisable et moulée ou formée d'une autre manière. L'élément de filtre et la partie centrale (13) sont introduits dans la cartouche (10) par la force à l'aide d'une presse, soit ensemble, soit l'un après l'autre. La cartouche (10) présentée dans le mode de réalisation illustré comporte un évasement annulaire (14) qui sert d'élément de guidage de pénétration de l'élément de filtre et contribue à l'introduction de l'élément de filtre dans la cartouche. L'outil (20) comporte un ensemble griffes (21) utilisant un dispositif d'expansion (22) à opération manuelle si bien que lors de l'introduction de l'ensemble griffes (21) dans l'élément de filtre (11), ledit dispositif d'expansion (22) peut être employé pour déplacer les mâchoires (23) de l'ensemble griffes dans la position illustrée (24). Un levier (25) est utilisé pour extraire l'ensemble griffes (21) et, partant, l'élément de filtre (11) de la cartouche (10). Il est à noter qu'une fois l'élément de filtre usé sorti de la cartouche, ladite cartouche peut être rechargée, replacée et réutilisée un grand nombre de fois.
Patent CA-2240350-A1 (CA)
Title: System and method for locating pages on the world wide web and for locating documents from a network of computers
Inventor: MONIER LOUIS M
IPC: G06F17/30
Filed: 1996-12-10
Abstract: A Web crawler system and method for quickly fetching and analyzing Web pages on the World Wide Web or from computers connected by a network, includes a hash table stored in a random access memory (RAM) and a sequential Web information disk file. For every Web page known to the system, the Web crawler system stores an entry in the sequential disk file as well as a smaller entry in the hash table. The hash table entry includes a fingerprint value, a fetched flag that is set true only if the corresponding Web page has been successfully fetched, and a file location indicator that indicates where the corresponding entry is stored in the sequential disk file. Each sequential disk file entry includes the URL of a corresponding Web page, plus fetch status information concerning that Web page. All accesses to the Web information disk file are made sequentially via an input buffer such that a large number of entries from the sequential disk file are moved into the input buffer as single I/O operation. The sequential disk file is then accessed from the input buffer. Similarly, all new entries to be added to the sequential file are stored in an append buffer, and the contents of the append buffer are added to the end of the sequential whenever the append buffer is filled. In this way random access to the Web information disk file is eliminated, and latency caused by disk access limitations is minimized.
Patent CA-2241597-A1 (CA)
Title: Moldless molding method using no mold and apparatus therefor
Inventor: TAKEUCHI HIROSHI
IPC: B29C64/153
Filed: 1996-12-27
Abstract: Moldless molding for producing molded articles of three-dimensional construction from a fluidized molding material without any mold. The method comprises feeding a fluidized molding material P onto a work table (11) in such a way as to shape the same into a lump which includes an entire article to be molded and has a volume approximately amounting to the outside profile of the article, solidifying the fluidized molding material P on the work table (11) and then performing machining, by which the fluidized molding material P  is decreased in volume. Unnecessary portions can be removed from the molding material fed in a lump by the use of an NC machine tool or the like to mold an article, so that it is possible to mold an article with high molding accuracy in a short time. In addition to not marring such advantage, a moldless molding apparatus can perform manufacture selectively in combination with an existing NC machine tool, material feeding mechanism and material uniting mechanism, thereby making manufacture easy and inexpensive. Accordingly, the apparatus is suitable for molding an article (product, sample and the like) with a fluidized molding material having a three-dimensional construction without any mold, and can be used for molding a mold for molding with various molding materials.
Patent CA-2241623-A1 (CA)
Title: Utilisation de 3,4-diphenylchromannes dans la fabrication d'une composition pharmaceutique servant au traitement ou a la prophylaxie des symptomes menopausiques
Inventor: BAIN STEVEN
IPC: A61K31/00
Filed: 1997-01-09
Abstract: Cette invention se rapporte à de nouvelles utilisations de composés représentés par la formule générale (I), où R?1¿, R?4¿ et R?5¿ représentent séparément hydrogène, hydroxy, halogène, trifluorométhyle, C¿1-6? alkyle, C¿1-6? alkoxy ou (C¿1-6? alkoxy)(amino tertiaire); et R?2¿ et R?3¿ représentent séparément hydrogène ou C¿1-6? alkyle; ou d'un sel pharmaceutiquement acceptable de ces composés, combinés à un excipient pharmaceutiquement acceptable, dans la fabrication d'une composition pharmaceutique servant au traitement ou à la prophylaxie des symptômes ménopausiques.
Patent CA-2242355-A1 (CA)
Inventor: LEGG ERIK J
IPC: A01H15/00
Filed: 1996-11-19
Abstract: Divulgation concernant des souches de champignons Agaricus bisporus dont les caractéristiques correspondent au nombre d'accession ATCC 74325, ou l'un de ses descendants; ces souches possèdent une blancheur améliorée, comparativement aux champignons du commerce.  On divulgue également des méthodes de production de nouvelles souches de champignons blancs.
Patent CA-2242425-A1 (CA)
Title: Quinazoline derivatives as vegf inhibitors
Inventor: THOMAS ANDREW PETER
IPC: A61K31/535
Filed: 1997-02-10
Abstract: The invention relates to quinazoline derivatives of formula (I) [wherein: Z represents -O-, -NH-or -S-; m is an integer from 1 to 5; R1 represents hydrogen, hydroxy, halogeno, nitro, trifluoromethyl, cyano, C1-3alkyl, C1-3alkoxy, C1-3alkylthio, or -NR5R6 (wherein R5 and R6, which may be the same or different, each represents hydrogen or C1-3alkyl); R2 represents hydrogen, hydroxy, halogeno, methoxy, amino or nitro; R3 represents hydroxy, halogeno, C1-3alkyl, C1-3alkoxy, C1-3alkanoyloxy trifluoromethyl, cyano, amino or nitro; X1 represents -O-, -CH2-, -S-, -SO-, -SO2-, -NR7-, -NR8CO-, -CONR9-, -SO2NR10- or -NR11SO2-, (wherein R7, R8, R9, R10 and R11 each represents hydrogen, C1-3alkyl or C1-3alkoxyC2-3alkyl); R4 represents a group which is alkenyl, alkynyl or optionally substituted alkyl, which alkyl group may contain a heteroatom linking group, which alkenyl, alkynyl or alkyl group may carry a terminal optionally substituted 5 or 6 membered saturated carbocyclic or heterocyclic group] and salts thereof; processes for their preparation, pharmaceutical compositions containing a compound of formula (I) or a pharmaceutically acceptable salt thereof as active ingredient. The compounds of formula (I) and the pharmaceutically acceptable salts thereof inhibit the effects of VEGF, a property of value in the treatment of a number of disease states including cancer and rheumatoid arthritis.
Patent CA-2244966-A1 (CA)
Title: Pen needle dispenser
Inventor: WEST ROBERT E
IPC: A61M5/00
Filed: 1998-08-12
Abstract: A pen needle dispenser having a cover rotatably mounted on a circular shaped container having a plurality of cavities, with each cavity dimensioned to receive a pen needle assembly with or without shields. The cover includes a slot that is rotated into alignment with one of the cavities in the container to provide the user with access to one unused shielded pen needle and thereby permits the pen needle to be mounted on a medication delivery pen. After use the used unshielded pen needle is returned to and locked in the cavity. Then, the cover is rotated until the slot is aligned with another cavity containing the next unused shielded pen needle to be used during the nextinjection. The pen needle dispenser prevents the cover from rotating the slot back to cavities containing used pen needles.
Patent CA-2246682-A1 (CA)
Title: Screen display key input unit
Inventor: KATO SYUNJI
IPC: G06F3/023
Filed: 1997-02-18
Abstract: A screen display key input unit in which any one of keys (21 to 35) shown on a screen (3) is inputted by touching with a pen (15), a mouse or the like. Each of the keys (21 to 35) shown on the screen (3) are defined with the first and second graphic character codes. A key input means for pointing out in a key display area on the screen (3) and a selection processing means for outputting one of the first and second graphic character codes defined on each of the keys (21 to 35) by determining the difference of key selection operations of the key input means are provided. The two graphic character codes are defined on each of the keys (21 to 35), so that the number of keys shown on the screen (3) is reduced as compared with a conventional input unit which each key is defined with one graphic character code, resulting in the improved operability.
Patent CA-2246936-A1 (CA)
Inventor: UDH FER ANDREAS
IPC: F16L13/14
Filed: 1998-09-11
Abstract: The invention relates to a connection of a metal pipe with a metal sleeve by means of cold-pressing deformation. The metal sleeve on its inside shell is provided with a pipe limit stop and the portion of the sleeve to be connected with the pipe end, along its inside shell, exhibits deformations before the pressing process. In one embodiment, the deformations of the inside shell of the metal sleeve are formed as ribs extending around the axis of the sleeve. The ribs on the inside shell of the metal sleeve are spaced at varying distance from each other. In another exemplary embodiment, the deformation of the inside shell of the sleeve has a convex curvature so that a frictionally-engaged connection is created after pressing.
Patent CA-2247192-A1 (CA)
Inventor: NEUMANN NORBERT J
IPC: C12Q1/02
Filed: 1997-02-05
Abstract: The invention relates to a process for determining the phototoxicity and/or photosensitivity of substances or mixtures thereof, including bringing the chemical substance or substance mixture into contact with a non-human vertebrate embryo or tissues or tissue components of a vertebrate embryo, with the exception of human skin cell cultures. After contacting, there is also treatment with electromagnetic radiation in the range of 1 mm to 200 nm, and subsequent evaluation of the embryo pathology, tissue pathology or cell pathology. The invention also relates to the use of a non-human vertebrate embryo or tissues or tissue components of such a vertebrate embryo, with the exception of human skin cell cultures, to determine the phototoxicity and/ or photosensitivity of chemical substances or mixtures thereof.
Patent CA-2247689-A1 (CA)
Inventor: MANNINEN TAISTO
IPC: A63B71/14
Filed: 1998-09-21
Abstract: The invention relates to a harness-like fastening means (1) for securing the hand to a ski-pole grip (3), said fastening means (1) including a thumb hole (2), a protector element (4) extending from the area between the thumb and forefinger to the wrist area, surrounding at least partially the thumb-side outer edge of the hand, and at least one wrist-encircling tightening strap (5). The protector element (4) is provided with at least one adjustment strap (7), extending in a substantially wrist-encircling direction and fitted with a fastening buckle (8) which is intended for cooperation with the tightening strap (5) and whose position along the adjustment strap (7) is adjustable longitudinally of the adjustment strap (7) according to the size of a user's hand.
Patent CA-2251193-A1 (CA)
Title: Method and apparatus for encoding and recovering keys
Inventor: AL-SALQAN YAHYA Y
IPC: H04L9/08
Filed: 1998-10-19
Abstract: A key such as a private key or key password of a private key is encrypted for storage, and may be decrypted if the private key becomes lost or unavailable.  The key is encrypted by encoding, for example, by hashing, private information such as mother's maiden name and social security number, and the result is used as a key to encrypt the private key using DES or another symmetric encryption technique.  The encrypted key is again encrypted, for example using asymmetric encryption, using the public key of a trusted party such as the certificate authority that generated the private key.  The result may be stored as a key recovery file by the principal of the private key or another party.  To decrypt the key recovery file, the private key corresponding to the public key used to encrypt the key recovery file is used to decrypt the key recovery file, for example by asymmetric decryption.  The result is symmetrically decrypted using a key obtained by encoding, for example, by hashing, the private information in the same manner as was used to encrypt the key.  The result of this decryption is the key.
Patent CA-2251475-A1 (CA)
Inventor: MANSOUR HAMZA
IPC: A61L15/32
Filed: 1997-04-02
Abstract: The invention relates to a hemostatic sponge based on collagen and an activator or proactivator of blood coagulation homogeneously distributed therein, which is dried and contains a water content of at least 2 %, preferably in the range of 2 to 25 %, more preferred 10 to 20 %, and a method for producing this sponge.
Patent CA-2251557-A1 (CA)
Title: A method for detection of prostate specific antigen used in monitoring and diagnosis of prostate cancer
IPC: C12Q1/68
Filed: 1997-04-16
Abstract: Primers specific for prostate specific antigen and a method for monitoring and diagnosing prostate cancer using these primers is provided. Kits for diagnosing prostate cancer containing these primers are also provided.
Patent CA-2251871-A1 (CA)
Inventor: BAUMGARTNER-SCHUH FRANZ-XAVER
IPC: A45C11/18
Filed: 1997-04-24
Abstract: A document folder has a front side (10) and a back side (20) joined at their edges (12-18, 22-28) to receive therebetween a document to be protected. At least one of the sides (10, 20) has a perforation (30, 40) for tearing the folder and removing the document therefrom. The perforation (30, 40) is located next to one of the edges (14, 24) and has a recessed section (32, 42) which extends towards the opposite edge (18, 28) and forms a recessed grip (46) when the folder is torn.
Patent CA-2254723-A1 (CA)
Inventor: SOTO ROY L
IPC: H04L1/24
Filed: 1998-12-01
Abstract: An integrated services digital network (ISDN) test set includes  an ISDN  transceiver,  a  supervisory  control processor which is operative to cause the ISDN transceiver to controllably transmit and receive ISDN communication messages over a communication circuit, and an alpha-numeric message display through which messages associated with the operation of the ISDN test set are displayed. The test set keypad also includes a dedicated  'ASSIST'  key,  that is selectably operated by the user,  to cause the control processor to execute  a user assistance routine,  which accesses a contextual-based alpha-numeric database, whose contents  are  associated  with  and  provide  additional information of a displayed alpha-numeric message.  This enables  a  test  set  user,  regardless of  training  or experience, to be provided with information necessary to competently operate the test set and successfully test an ISDN line.
Patent CA-2254742-A1 (CA)
Inventor: OLSON LISA M
IPC: B65D85/64
Filed: 1998-11-19
Abstract: An interlocking pallet assembly for containing an arrangement of components within a shipping container is disclosed. The shipping container includes a first pallet having a plurality of compartments for containing a plurality of components, at least one of the components including a vertical member which extends above the surface of the first pallet, and a second pallet having a plurality of compartments for containing a plurality of components, and at least one aperture for receiving the vertical member associated with the first pallet through a bottom portion thereof. The first and second pallets are similarly dimensioned so that when the second pallet is disposed on the first pallet, the vertical member aligns with and engages the aperture formed in the second pallet thereby forming an interlocking mechanism for preventing movement of the second pallet relative to the first pallet.
Patent CA-2256500-A1 (CA)
Inventor: MALTBY FREDERICK L
IPC: G01F23/296
Filed: 1997-05-23
Abstract: An ultrasonic measurement method in an ultrasonic measurement system having an ultrasonic transducer (6) includes emitting an ultrasonic pulse (26) from the ultrasonic transducer. An ultrasonic pulse is received in accordance with a pulse travel time wherein the amplitude of the received ultrasonic pulse varies according to the pulse travel time. A first electrical signal is provided representative of the received ultrasonic pulse wherein the amplitude of the first electrical signal varies in accordance with the pulse travel time. A second electrical signal is provided in accordance with the first electrical signal wherein the amplitude of the second electrical signal is substantially independent of the pulse travel time. In order to determine the second electrical signal variable amplification is applied to the first electrical signal in accordance with the travel time. A distance is determined according to the pulse travel time wherein the distance is representative of the distance between the transducer and a material surface (18).
Patent CA-2257604-A1 (CA)
Inventor: NOTTROTT RUDOLF
IPC: H01R13/115
Filed: 1997-06-10
Abstract: The present invention relates to a pin bushing (1) with a receiving part (2) for a pin (4) and a side connection part (3). The receiving part (2) forms a bushing (5) with a base (6), two side walls (7a, 7b) and a roof zone (8), the roof zone (8) comprising at least two tongues (9) alternatively radiating from different side walls (7a, 7b) and extending transversely of the plug-in direction, said tongues being bent over inwards into the bushing (5) in the top zone of the opposite side walls (7a, 7b).
Patent CA-2258181-A1 (CA)
Inventor: SUNDERMEIJER JAN
IPC: B66F9/18
Filed: 1996-02-21
Abstract: A container handling assembly for lifting one or two containers. The assembly comprises a first and second jaw (18, 8) captively connected for cooperative movement whereby the jaws close when a load is applied. If a single container is lifted on the first jaw (18) the second jaw (8) pivots to clamp the container on the first jaw. If two containers are lifted the jaws close to safely clamp both containers. In the unloaded position the second jaw projects beyond the first jaw thereby facilitating insertion of the jaws into coupling pieces of containers to be lifted. A number of safety features are incorporated to prevent lifting unless the containers are correctly loaded and to prevent unloading unless a release is activated.
Patent CA-2261121-A1 (CA)
Inventor: JUNG JAE YEON
IPC: B62M1/00
Filed: 1998-05-14
Abstract: A reversible drive device for bicycles, allowing a bicycle to go forward by a normal or reversed rotating force of a pedal without forcing a user to operate any lever, is disclosed. The drive device has a simple construction with a reduced number of parts and allows the rear wheel (10) to be rotatable in a reversed direction, thus allowing the bicycle to be moved backward. The drive device is integrated into a single assembly and is detachably attached to either the rear wheel hub shaft (11) or a pedal shaft (21), so the device allows a user to easily repair or change the drive device and improves work efficiency while producing the drive device. Two crescent stoppers (18) are formed on each end of the fixed shaft (17) so as to effectively prevent the shaft holding yoke of the rear wheel fork (1) from being unexpectedly opened.