baber/WOPTO huggingface dataset:
Patent CA-2145811-C (CA)
Title: Star-shaped polymers
Inventor: CHISHOLM BRET JA
IPC: C08L53/00
Filed: 1995-03-29
Granted: 2006-05-16
Abstract: The present invention provides star-shaped polymers comprising cores of polymerised diisopropenylbenzene and at least three polymeric arms connected to each core, the polymeric arms comprising polyisobutylene; a process for their preparation; and lubricating oil compositions containing them.
Patent CA-2147196-C (CA)
Inventor: OPREA ALEXANDRU
IPC: H04B7/10
Filed: 1995-04-18
Granted: 2002-11-19
Abstract: A microwave detector, which integrates two circular patch antennas with a detector diode.  The high impedance at the edge of the circular patch antenna is combined with 180° out of phase electric fields at diametrically opposite points, so as to match to the RF impedance of a zero or small DC bias diode.  The result is a very simple, high-sensitivity narrow-band microwave integrated detector.
Patent CA-2147201-C (CA)
Inventor: MENDENHALL JESSE W
IPC: B23Q17/22
Filed: 1995-04-18
Granted: 2000-12-05
Abstract: The invention relates to improvements in the multiple spindle rotary indexing machine tool systems of the prior art. Traditionally, such machine tool systems include a base and an upstanding vertical column which houses a plurality of machining stations each equipped with two-axis tool slides. In addition, the base supports a rotatable worktable, which carries a number of work-holding spindles. As the worktable rotates, these spindles are indexed through successive machining stations where a variety of operations are performed. In accordance with the invention, a spindle position measurement unit is provided to dynamically measure the exact location of each spindle indexed to position at a modified machining station. A computerized numerical control system calculates spindle position errors based on the position information provided by the measurement unit and offsets tool slide position commands to compensate for those errors. As a result, the control unit compensates for both fixed and variable spindle position variations, thus improving the machining tolerances of the machine tool apparatus. In accordance with another aspect of the invention, a high accuracy finishing station is provided which includes spindle position variation measurement and compensation in combination with an independent X and Y axis tool slide positioning system. The tool slide positioning system is responsive to CNC commands for speed control and position offset due to spindle errors.
Patent CA-2151299-C (CA)
Title: Method for separating volative compounds in process streams
Inventor: HOFFMAN WILLIAM CHRISTOPHER
IPC: C07D301/32
Filed: 1995-06-06
Granted: 1999-04-27
Abstract: A method, especially applicable on a continuous basis to commercial process streams, for treating unwanted by-products and/or impurities contained  in those streams. The method comprises the reaction in situ of such by-products or impurities with a reagent, preferably selected for its reactivity under ambient conditions of the process stream, to produce one or more materials which may then be separated from the process by economical means. The treated stream may be recycled to the process for further processing. While the method is not limited as to the process to which it is applied nor to the reagent or reagents used, in one convenient embodiment, formaldehyde in aqueous solution is reacted with an alkali metal sulfite or bisulfite to produce the corresponding salt, which may then be separated essentially completely by, e.g., distillation or membrane separation, etc., or its concentration  in the process may be controlled by, e.g., continuous removal of a purge stream, etc.
Patent CA-2153077-C (CA)
Inventor: YAMAMOTO MASAMITSU
IPC: A01K1/015
Filed: 1995-06-30
Granted: 1999-01-26
Abstract: The present invention discloses an absorbent composite panel to be laid on a urination tray for pet animals such as cats and dogs,  the composite panel comprising a liquid-permeable topsheet,  a liquid-impermeable backsheet and a liquid-absorbent core disposed between these two sheets, the absorbent  core comprising  a  plurality of  core  elements intermittently arranged independently of one another and the top- and backsheets being bonded together over zones defined between each pair of adjacent core elements  so  that  a selected portion of the composite panel may be cut off from the remainder.
Patent CA-2155669-C (CA)
Inventor: HJERTMAN BIRGER
IPC: A61M5/19
Filed: 1994-02-14
Granted: 2005-10-04
Abstract: A piston (11) to be used in displacing a liquid inside a cylindrical chamber, preferably in an injection cartridge of the dual-chamber type, has at least one of its end surfaces (12) shaped convex such that said end surface or surfaces (12) are essentially planar when the piston has been arranged inside the barrel of said cartridge. Preferably both pistons in the cartridge have such a shape, their planar surfaces facing each other.
Patent CA-2155818-C (CA)
Inventor: SAI MASAHIRO
IPC: E05F15/20
Filed: 1995-08-10
Granted: 1998-09-01
Abstract: An automatic door opening and closing system opens a door by driving means when a person approaches the door.  A monitoring area is set in the vicinity of the door, and moving speed and direction computing means computes the speed and direction of movement of the person on the basis of changes in position of the person in the monitoring area.  When it is judged from the computed direction of movement that the person is moving toward the door, door enabling area selecting means selects one of plural door enabling areas suitable for the speed of movement of the object.  Open-door command means provides an open-door signal, which causes the door to be opened at a fixed speed, to the driving means so that the door is fully opened upon the predicted arrival of the person at the door.
Patent CA-2157916-C (CA)
Title: Methode de nettoyage et d'entreetien de reseaux de canalisations de distribution d'eau potable
Inventor: HIEATT ALLEN C
IPC: C23G1/02
Filed: 1994-03-22
Granted: 2000-01-25
Abstract: L'invention se rapporte à un procédé pour nettoyer et entretenir des systèmes de distribution d'eau potable qui ont un débit réduit à cause d'une augmentation des dépôts de tartre, des sédiments et similaires sur la surface intérieure de la conduite. A cet effet, une solution de nettoyage acide aqueuse (12) est introduite et mise en circulation dans la conduite (25) à traiter, pendant une période suffisante pour dissoudre et détacher le tartre et les sédiments, et la solution usée contenant le tartre et les sédiments dissous ou en suspension est évacuée par rinçage de la conduite (25), pour produire une conduite propre avec un meilleur écoulement de l'eau. Il est également souhaitable de rincer le système de conduite de distribution d'eau avec de l'eau sous haute pression après le traitement pour enlever le tartre et les sédiments détachés qu'il n'a pas été possible de faire partir pendant la mise en circulation et l'évacuation par rinçage de la solution traitante (12).
Patent CA-2158988-C (CA)
Title: Method and system for image processing
Inventor: DELEAN BRUNO
IPC: G06F3/048
Filed: 1994-03-25
Granted: 2000-06-13
Abstract: An image processing system containing apparatus and a concomitant method for rapid image processing using a computer system. The system generates a special image format containing a plurality of subimages. When an image is edited, the system uses the information in the subimages to calculate a good depiction of the image on the display at the display resolution given the current pan and zoom. Image alterations are stored within a computer file as an expression tree. Each node in the expression tree defines a particular editing operation that resulted in modifications to the image. To display the image upon a computer monitor display, the expression tree defining the alterations is evaluated to form a composite output image having any resolution necessary to display an accurate rendition of the edited image. Once edited, the output image can be printed on a high resolution printer by combining expression tree with a full resolution image to produce a high resolution output image.
Patent CA-2160098-C (CA)
Title: Polymer enhanced foam drilling fluid
Inventor: SYDANSK ROBERT D
IPC: C09K8/38
Filed: 1995-10-06
Granted: 2000-03-14
Abstract: A process employing a polymer enhanced foam in a wellbore as a drilling fluid during a wellbore drilling operation.  The  polymer  enhanced  foam  is  formed  from  an uncrosslinked  acrylamide  polymer,  a  surfactant,  an aqueous solvent, and an added gas.
Patent CA-2166314-C (CA)
Inventor: PIPPER GUNTER
IPC: C08G69/16
Filed: 1994-06-20
Granted: 2004-05-18
Abstract: L'invention concerne un procédé de production continue de polyamides à partir d'un mélange comprenant au moins un lactame et de l'eau et, le cas échéant, d'autres motifs monomères et/ou des additifs et des charges classiques, dans des conditions favorables à la formation de polyamides. Le mélange des produits de départ est chauffé en phase liquide dans une première zone de réaction, jusqu'à obtention d'un taux de conversion d'au moins 70 %, puis soumis à une détente de manière adiabatique et à une seconde polymérisation dans une autre zone de réaction. Dans la première zone de réaction, on ajoute au mélange entre 0,5 et 7 % en poids d'eau, la température est élevée jusqu'à ce qu'elle soit comprise entre 220 et 310  DEG C et la polymérisation s'opère jusqu'à obtention d'un taux de conversion d'au moins 85 %. Dans la seconde zone de réaction, après la détente, la polymérisation se poursuit sans apport supplémentaire de chaleur, à des températures comprises entre 215 et 300  DEG C.
Patent CA-2166328-C (CA)
Title: Prostacyclin synthase derived from human
Inventor: TANABE TADASHI
IPC: A61K31/70
Filed: 1995-04-27
Granted: 2007-08-14
Abstract: A DNA comprising a DNA having a nucleotide sequence encoding the amino acid sequence of human-originated prostacyclin synthase (PGIS) substantially depicted in Sequence No. 12, a vector comprising said DNA, a host cell transformed with said vector and a method for preparing human-originated PGIS comprising culturing said host cell in a medium. A polypeptide having the amino acid sequence of human--originated PGIS substantially depicted in Sequence No. 12 and an antibody having a reactivity with said human-originated PGIS. A pharmaceutical composition comprising said DNA or a vector comprising said DNA. A method for promoting the production of PGI2 and a method for treating the diseases induced by a low production of PGI2, comprising introducing said DNA or a vector comprising said DNA into human or other animals. The present invention clarifies the primary structure of human--originated PGIS and the nucleotide sequence encoding same. The PGIS and its DNA are useful as reagents for the development of therapeutic agents for the cardiovascular diseases induced by the production imbalance between PGI2 and TXA2, and as diagnostics for determining the in vivo tissue expression level-and distribution of PGIS or mRNA thereof. Moreover, they can be used as therapeutic agents for cardiovascular diseases, which introduce PGIS and the like into human or other animals in a lesion-specific manner. The production method of the present invention is useful for the easy and efficient mass production of the human-originated PGIS. The antibody of the present invention is useful for the purification of the human-originated PGIS and immunohistochemical analysis of the cause of a disease.
Patent CA-2167347-C (CA)
Title: Hot runner nozzle
Inventor: GUENTHER HERBERT
IPC: B29C45/27
Filed: 1996-01-16
Granted: 1999-06-01
Abstract: A hot runner (10) with an externally heated material pipe (16) and die tip (26) comprises a pre-mounted heating unit (20) with a sealing body (24) which supports a pipe (40) for a heat sensor (34) in a circumferential segment (46). The sealing body (24) made in particular of brass encloses concentrically an insulated heating coil (23) in a steel pipe (22) which is mechanically protectedby a partly sleeve-shaped retaining element (42). For example the sensor pipe (40) is supported in the sealing body (24) form-closed and/or material-closed between the edges of peripheral ends of a perforated sheet (42). The steel pipe (22) has a lateral recess (44) for inserting the connection points (36) of the heat sensor (34). The material pipe (16) is insertable into the heating device (20) able to conduct heat with the close positioning of its shaft (17) against the inner wall (25).
Patent CA-2170097-C (CA)
Title: Thiophene compounds; process for preparing the same and pharmaceutical compositions containing them
Inventor: SAUVEUR FREDERIC
IPC: A61K31/38
Filed: 1996-02-22
Granted: 2002-02-26
Abstract: Thiophene derivs. of formula (I) and their base addn. salts are new. X1, X2, Y1, Y2 = H, halo, 1-5C alkyl, 1-5C alkoxy or CF3; R1 = H or 1-5C alkyl; A = 1-5C hydrocarbon chain where each atom is opt. mono- or di-substd. by 1-5C alkyl; and R2 = H, 1-5C alkyl, cyclohexyl or benzyl.
Patent CA-2172372-C (CA)
Inventor: GASKILL GAROLD B
IPC: G08B3/10
Filed: 1994-11-02
Granted: 2005-12-27
Abstract: Group message delivery in a time multiplexed paging system (10) is accomplished by providing in normal message packets (18) a group ring indicator (18d). A paging device (12) collecting a message interrogates the group ring indicator (18d) to determine availability of a pending group message. If a group message is available, the paging device (12) can target a dedicated time slot associated with group message transmission.  In this manner, a single transmission of a group message is made available to all paging devices (12) of the paging system (10). In one embodiment, the group ring indicator (18d) is a single bit indicating merely availability of a pending group message, the paging device (12) then targeting and collecting the available group message to determine whether the paging device (12) subscribes to that particular group message service (3). In a second embodiment, the paging device (12) determines based on the value of the group ring indicator (18d) whether the indicated available group message need be pursued.
Patent CA-2173368-C (CA)
Title: Control and communications apparatus
Inventor: OPOCZYNSKI ADAM
IPC: G06F11/20
Filed: 1994-10-04
Granted: 2000-05-02
Abstract: A master/slave communication and control system (10) includes a master controller (12) and a plurality of slave subsystems (14A, 14B, 14C), the master controller connected with the slave subsystems through first and second independent serial data buses (20A, 20B), designed as a working data bus and a standby data bus. The master controller drives a A/B select line (22) applied to each slave subsystem to select which data bus the slave subsystems will use to communicate with the master controller. Each slave subsystem generates an independent request for communication signal, carried on independent input request lines (18A, 18B, 18C) to the master controller. A plurality of kill signals are generated by the master controller and applied over independent kill lines (16A, 16B, 16C) to each slave subsystem, whereby the master controller may send the kill signal to any one of the slave subsystems. Each slave subsystem can receive its respective kill signal and disconnect itself from the data buses.
Patent CA-2175821-C (CA)
Inventor: NEGRE BERNARD
IPC: B62D65/02
Filed: 1994-10-28
Granted: 2005-01-11
Abstract: A method for assembling bodywork parts, wherein at least two separate members are delivered to a geometrical positioning station, held by positioning tools thereof in predetermined relative positions with an overall arrangement determined with respect to a reference point in the station, and joined together, e.g. by welding. The assembly method comprises the steps of combining at least one of the members (200) with a holder (201) comprising devices (212, 213, 214) for gripping the member, devices (202, 203, 204) for coupling it to at least one handling device, and devices (205, 211, 220) for indexing said member through the reference point of the geometrical positioning station; delivering the member (200) to the geometrical positioning station by means of said holder (201); indexing the member through the geometrical positioning station by means of the holder by actuating the positioning tools so that they interact partly with the member (201) and partially with the holder to complete the positioning of said member, and optionally by releasing some but not all of the gripping devices (212, 214), and joining the members together.
Patent CA-2176311-C (CA)
Title: Process for manufacturing methanol and process for manufacturing catalyst for methanol synthesis
Inventor: YAMAGISHI KEN
IPC: B01J23/80
Filed: 1996-05-10
Granted: 2007-12-18
Abstract: A process for manufacturing methanol is herein disclosed which comprises the step of reacting hydrogen with carbon monoxide and/or carbon dioxide in the presence of a synthetic catalyst obtainable by mixing, in a slurry state, (a) a beforehand prepared precipitation slurry of copper and zinc, with (b) an alumina precursor separately prepared from a water-soluble aluminum salt and a basic precipitant, to obtain a composition containing copper, zinc and aluminum, and washing, drying and then calcining the composition. A process for manufacturing the above--mentioned catalyst is also disclosed.   According to the present invention, methanol can extremely efficiently be manufactured, and the catalyst having a high activity and an excellent heat resistance can also be manufactured.
Patent CA-2176826-C (CA)
Title: Guiding catheter
Inventor: AZAM NUSAYR
IPC: A61M25/16
Filed: 1994-11-01
Granted: 2000-09-26
Abstract: A catheter (10) is disclosed having a proximal shaft formed from an inner liner (21) formed from a copolymer of polyvinylidene fluoride and hexafluoropropylene, an outer jacket (23) formed from a blend of nylon and polyether block amide or polyether block amide alone, and a soft flexible tip (30) affixed to the distal end of the proximal shaft formed from polyether block amide. A stem (50) may be located between the proximal shaft and the soft flexible tip (30). The stem (50) has an outer jacket formed from a proximal stem transition sleeve (51) with a tapered distal end and a distal stem sleeve (52) with a complementary tapered proximal end connected to the tapered distal end of the proximal stem transition sleeve (51). The stem transition sleeve (51) and the stem sleeve (52) are both formed from polyether block amide alone or a blend of polyether block amide and nylon. The outer jacket (23) may be the same hardness as or harder than the stem transition sleeve (51) which in turn is harder tham the stem sleeve (52) and the soft flexible tip (30). An intermediate wire mesh braid extends through the proximal shaft and, if desired, through the stem.
Patent CA-2178461-C (CA)
Inventor: MORROW WILLIAM
IPC: A61L9/12
Filed: 1996-06-06
Granted: 2004-01-13
Abstract: An air purifier has a perforated plate between UV lamps on the one hand and a porous air filter on the other. Biological material is trapped by the filter and eventually killed by the low dose of UV radiation which passes through the perforations in the plate. Filtered air passing through the plate is subjected to a high dose of UV radiation which sterilizes remaining biological material in the air. An electrostatic filter at the out let may t rap viruses which have been positively charged either by the action of the UV lamps or by positively charging the plate in order to strip electrons from the viruses. The UV lamps may be mercury lamps which are allowed to emit at both their ozone forming wavelength as well as the ozone breakdown wavelength. In such instance, a light filter surrounds the lamps which passes light only at the ozone breakdown wavelength. Air subjected to the unfiltered light is consequently subjected to ozone, which is a known biocide. The filtered light is in a zone which is filled with water mist such that hydroxyl radicals result. Air passing through this zone is scrubbed by the hydroxyl radicals.
Patent CA-2178814-C (CA)
Inventor: GUSTAFSSON PER
IPC: E21B4/14
Filed: 1994-12-13
Granted: 2005-12-20
Abstract: An in-hole rock drilling machine has a tubular housing (12) with a piston hammer (24) that is guided at its ends only. Its front portion is guided by a guide bushing (18) that takes support against a shoulder (13) in the housing and its rear end is guided by a valve housing (20).  The guide bushing (18), the valve housing (20) and a distance tube (19) between them are clamped together against the shoulder (13) by means of a back head (22) screwed to the machine housing (12).  The distance tube (19) is adapted to be compressed axially at least 0.3 pro mille of its length and preferably between 0.8 and 3 pro mille of its length when the back head is screwed into position. This arrangement gives a robust machine and to assemble and to disassemble the machine will be simple.  The tolerances in length will not be critical which makes the machining of the various machine parts less critical.
Patent CA-2180857-C (CA)
Inventor: SUYAMA KIICHI
IPC: G01N22/02
Filed: 1995-12-18
Granted: 2000-02-15
Abstract: On fait se propager une onde électromagnétique à l'intérieur d'une conduite constituant un objet d'inspection, à partir d'une antenne de transmission d'un émetteur, et une antenne de réception d'un récepteur est déplacée de long et à l'extérieur de la conduite afin de l'inspecter par réception d'une fuite électromagnétique. Si un niveau de signal de crête est détecté par le récepteur, un défaut est localisé à l'endroit où la conduite peut être corrodée ou fissurée ou bien présente un joint. L'antenne de transmission peut être déplacée le long et à l'extérieur de la conduite tandis que l'antenne de réception peut être disposée au niveau d'une position appropriée sur ladite conduite. L'inspection décrite ci-dessus peut être effectuée par déplacement des antennes à la fois de transmission et de réception, de manière synchronisée l'une avec l'autre. Lorsque l'antenne de transmission et l'antenne de réception sont déplacées, la fréquence de l'onde électromagnétique peut être la fréquence de propagation à l'intérieur de la conduite ou peut être inférieure à une fréquence de coupure. D'autre part, si une antenne allongée est disposée à l'intérieur de la conduite, une fréquence inférieure à la fréquence de coupure peut être utilisée sans déplacer les antennes.
Patent CA-2183241-C (CA)
Inventor: KERRY-WILLIAMS SEAN MARTIN
IPC: C12N15/09
Filed: 1995-03-01
Granted: 2002-05-21
Abstract: Albumin, for example human albu-min, is expressed and secreted in yeast which has been mutated to lack the yeast aspartyl protease 3 (Yap3p) or its equiva-lent, thereby reducing the production of a 45kD albumin fragment. A further reduc-tion is achieved by additionally deleting the Kex2p function. Alternatively, a modified albumin is prepared which is not suscep-tible to Yap3p cleavage, for example hu-man albumin which is R410A, K413Q and K414Q.
Patent CA-2196876-C (CA)
Inventor: THIM LARS
IPC: A61K38/22
Filed: 1995-08-25
Granted: 2007-04-17
Abstract: Peptides à trois boucles contenant un seul domaine à trois boucles caractérisé par le fait qu'il se trouve sous forme dimère.
Patent CA-2201938-C (CA)
Inventor: ADKINS KEITH D
IPC: B23Q3/08
Filed: 1996-07-15
Granted: 2003-04-01
Abstract: Cette invention concerne un procédé et un appareil de dimensionnement et de manipulation d'un matériau configuré, lequel procédé consiste à appliquer un vide et/ou une pression positive audit matériau configuré.