baber/WOPTO huggingface dataset:
Patent CA-2257365-A1 (CA)
Inventor: BAMBARA JOHN D
IPC: C08L51/08
Filed: 1997-06-10
Abstract: The invention relates to polymer blends which can be used both in foamed and unfoamed states as a replacement for conventional EPDM and other elastomers.  The composition of the blend includes a single-site catalyzed polyolefin resin having a density of below 0.878 g cm-3 and up to 40 weight percent a polyolefin including ethylene and propylene. The polymer blend is cross-linked. The polymer blends are formable and foamable. The use of sulfur to vulcanize the polymer blend is not necessary. The polymer blends can be used to make foam for floatation or for making gaskets.
Patent CA-2257449-A1 (CA)
Inventor: SACCHI VITTORIO
IPC: A61C5/40
Filed: 1996-07-02
Abstract: Process for devitalizing a tooth by transmission of a high-frequency electric pulse to the vascular and nervous tissue in the root canal by insertion in said canal of an electrode in the form of a needle (100), said pulse being generated by an electronic apparatus (10), values of power, time and frequency of said electric pulse being automatically regulated by the electronic apparatus in accordance with the control given by pressing one or another of four push buttons (30-33) one for each of the different types of teeth.
Patent CA-2259828-A1 (CA)
Title: Packing grates for wet gas scrubber and other applications
Inventor: SIXSMITH RICHARD
IPC: B01F5/06
Filed: 1999-01-18
Abstract: A contacting grate or panel for mass transfer or heat exchange comprising a substantially rectangular supporting framework having two connecting frame members extending along opposite side edges and a number of elongate supporting frame members extending between the connecting frame members. A series of small, parallel plates are mounted along each of the supporting frame members and each plate is relatively short. The grate has two relatively large and opposite sides and the planes in which the plates lie are perpendicular to these two opposite sides. Preferably, each plate lies in a plane which extends at an acute angle of less than 90 degrees to a longitudinal central axis of its respectively supporting frame member. A number of these grates can be connected together at their corners to form a module.
Patent CA-2261555-A1 (CA)
Inventor: GATES WILLIAM GEORGE
IPC: H05K7/20
Filed: 1999-02-10
Abstract: Electronic apparatus is disclosed having components mounted within an environmentally sealed external enclosure.      The enclosure comprises a casting of heat conductive material and ones of the components are mounted in heat conductive association with one or more walls of the enclosure. These one or more walls have external pin fins projecting therefrom.      Conventional extended surfaces are, in effect, flat strips extending a significant distance along the surface of the enclosure. The pin fins of the present invention improve cooling compared with conventional fins. The enclosure may be lighter in weight than an enclosure that has conventional fins.
Patent CA-2265322-A1 (CA)
Title: Method for grinding precision components
Inventor: KUO SHIH YEE
IPC: B24D3/08
Filed: 1999-03-12
Abstract: A method for precision cylindrical grinding of hard brittle materials, such as ceramics or glass and composites comprising ceramics or glass, provides material removal rates as high as 19-380 cm3/min/cm. The abrasive tools used in the method comprise a strong, light weight wheel core bonded to a continuous rim of abrasive segments containing superabrasive grain in a dense metal bond matrix.
Patent CA-2266075-A1 (CA)
Title: Apparatus responsive to movement of a patient during treatment/diagnosis
Inventor: ATHANASSIOU CHARALAMBOS N
IPC: A61B6/08
Filed: 1997-09-18
Abstract: A camera (35) generates digital image signals representing an image of one or more natural or artificial fiducials (39) on a patient positioned on treatment or diagnosis equipment. A processor applies multiple levels of filtering at multiple levels of resolution to repetitively determine successive fiducial positions. A warning signal is generated if movement exceeds certain limits but is still acceptable for treatment. Unacceptable displacement results in termination of the treatment beam (15). Tracking templates can be generated interactively from a display of the digital image signals or through automatic selection of an image having the median correlation to an initial template. A gating signal synchronized to patient breathing can be extracted from the digital image signals for controlling the radiation beam generator.
Patent CA-2268508-A1 (CA)
Title: Papermaker's forming fabric
Inventor: BARRETT REX
IPC: D21F1/10
Filed: 1999-04-08
Abstract: A single layer forming fabric comprising a primary warp and a paired primary and secondary weft yarn system, which is woven according to a four, five or six-shed pattern. The secondary weft yarns are of the same size as the primary weft. Within each pair each primary weft floats over at least as many warps as it passes under, and each secondary weft passes under one or two warps. Both the primary and the secondary weft pass under at least one warp in a side-by-side relationship. This single layer weave construction serves to reduce the machine direction frame length, and contributes additional yarn material that is available to resist abrasive wear during use, so as to increase fabric wear life. The shorter frame length provides better fibre support, improved first pass retention, and improved sheet release from the forming fabric.
Patent CA-2268976-A1 (CA)
Title: Pyrotechnical device and process for extinguishing fires
Inventor: WAGNER ERNST WERNER
IPC: A62C35/08
Filed: 1997-10-30
Abstract: The present invention pertains to a pyrotechnical device and process for extinguishing fires, especially in case of a forest fire or a surface fire. The extin-guishing device comprises two flexible fire hoses (1, 2) arranged side by side and transversally relative to the direc-tion from which the danger (5) comes and designed so that both ends can be obturated. A fire suppressant (3, 4) is placed in or upon each hose and its ig-nition causes same to be sprayed and di-rected into the fire. In order to guaran-tee a targeted jet of the fire suppressant in the direction from which the danger comes, the impulse (Ii) from the first hose (1) turned in the direction opposite the danger is meant to be stronger than the impulse (I2) from the hose turned in the direction from which the danger comes. For the various hose (2) cross-sections, the quantity of blasting agents depends on the diameter of the hose turned to the danger, taking into account the density p of the fire suppressant under the inventive formula.
Patent CA-2269500-A1 (CA)
Inventor: NAEGLER GUENTER
IPC: F16K3/20
Filed: 1997-02-28
Abstract: Single-plate slide valve, in particular single-plate pipe-bridge slide valve (10) with a sliding plate (16) and where appropriate pipe bridge (20), which in order to close or open a fluid passageway (17) formed in a housing (11) can be shifted by an actuating mechanism (18, 19) within this housing (11), wherein the sliding plate (16) or pipe bridge (20) comprises on its edges sealing surfaces that correspond to sealing surfaces, in particular ring sealing surfaces (14, 15), disposed on the housing side. At least one of the housing-sided sealing surfaces (14, 15) is part of a sealing ring (23) disposed in the housing (11), which is apposed under initial elastic tension to the facing sealing surface of the sliding plate (16) or pipe bridge (20)
Patent CA-2269627-A1 (CA)
Inventor: DEGUCHI YUKICHI
IPC: B29L9/00
Filed: 1997-08-25
Abstract: A polyester film for electrical insulation having an apparent density of 1.37-0.85 g cm3 and a modulus of tensile elasticity of 2.0-4.5 GPa. The film has a low oligomer property, a high heat resistance, a high shock resistance, a high formability, an excellent incorporation stability, and improved visibility.  When this film is used for electrical insulation of motors, leakage currents hardly flow.
Patent CA-2269842-A1 (CA)
Inventor: DANBY HAL C
IPC: F04B43/12
Filed: 1998-08-31
Abstract: A liquid delivery device which controls the flow of liquid from a liquid reservoir includes a resilient tubing having a wall with a substantially cylindrical cross section defining a flow lumen. The flow lumen is in fluid communication with the reservoir. A compression member selectively compresses a lengthwise segment of the cylindrical wall to collapse the flow lumen and releases the lengthwise segment to open the flow lumen. An elastomeric sleeve envelopes greater than half an outer diameter of the cylindrical cross section of the resilient tubing along at least a portion of the lengthwise segment of the cylindrical wall. The elastomeric sleeve biases the lengthwise segment of the resilient tube to restore it to its substantially cylindrical cross section when the compression member releases the lengthwise segment.
Patent CA-2270201-A1 (CA)
Title: Odam edge protector
Inventor: LEDOUX MADELEINE
IPC: A63C11/02
Filed: 1999-04-20
Abstract: La présente invention touche au monde du sport, plus spécifiquement les articles de sports tel que planches à neige, skis, mini-skis et autres articles de sports munis de quarts en périphérie. Il s'agit en fait d'un protecteur de rebord monopièce muni d'oeillets à intervalles donnés, qui peut être élastique ou non, que l'on coupe à longueur désirée (pour ajuster à la longueur du contour), qui s'emboîte sur le rebord de l'article en question et qui peut être maintenu plus fermement en place par l'utilisation de lacets, lanières ou cordes que l'on faufile dans les oeillets.
Patent CA-2272724-A1 (CA)
Title: Water displacement device
Inventor: KERWIN COLIN JOHN
IPC: E03D1/14
Filed: 1999-05-25
Abstract: A water displacement device for water storage vessels such as flush cisterns, the device comprising a perforated plastics bag (11) containing, in granular form, a super-absorbent polymer which, when wetted, expands to two hundred times its pre-absorption volume.      The bag is preferably weighted and may be simply placed in a cistern (14) where it rapidly expands to displace between 2 and 5 litres of water within a cistern otherwise containing at least 9 litres, thus significantly to reduce wasteful water consumption.
Patent CA-2272922-A1 (CA)
Title: A decoding apparatus/method and data format for processing and storing encrypted video data
Inventor: BRIDGEWATER KEVIN ELLIOTT
IPC: H04N5/44
Filed: 1997-10-28
Abstract: A decoder (25) conditional access system (115, 130, 50) incorporates different encryption systems for providing access to programs derived from different sources. A conditional access processor (115, 130, 50) for processing encrypted program data and an associated encryption code includes a first algorithm means (130, 115) for decrypting the encryption code to provide an encryption key. The conditional access processor also includes a second algorithm means (115, 130) for encrypting the encryption key and the second encryption algorithm is different to the first encryption algorithm. A datastream representing the program is generated (33, 115, 110, 60, 65, 50) from encrypted program data and an associated encryption code. The encryption code is decrypted (115, 130) to provide an encryption key using a first algorithm. The encryption key is encrypted (115, 130) using a second algorithm different to the first encryption algorithm and the program datastream is formed from the encrypted program data and the encrypted encryption key. The program datastream is decrypted by selecting between a first and a second decryption algorithm and by decrypting (115, 130) the encryption code to provide an encryption key. The encryption key is used to decrypt (50, 115) the encrypted program. A storage medium (105) data format for recording encrypted program data is also disclosed.
Patent CA-2273128-A1 (CA)
Inventor: ISHII KAZUO
IPC: G06K7/10
Filed: 1999-05-27
Abstract: For receiving clear image data of symbols applied to the front surface or back surface of an article that is moved by, for example, a conveyor and for which the reading distance is constantly changing, a symbol reading device is provided with an image data input focus point control section that outputs position data of the article from a front surface/back surface position detector to an image data input focus point modifier such that the focus point of a camera or waist position of a laser beam for image data input can be constantly matched to the front surface or back surface of the article.
Patent CA-2276979-A1 (CA)
Title: Directional coupler, antenna device, and transmitting-receiving device
Inventor: HIGASHI KAZUTAKA
IPC: H01P5/04
Filed: 1999-07-06
Abstract: A directional coupler including a first transmission line and a second transmission line adjacent to the first transmission line, the relative positions of the first transmission line and the second transmission line being changeable, a patch antenna connected to a part of the directional coupler, and a driving mechanism for driving the directional coupler and the patch antenna.
Patent CA-2277927-A1 (CA)
Title: Method for making submicrometer transition metal carbonitrides
Inventor: DUNMEAD STEPHEN D
IPC: C01G41/00
Filed: 1998-02-25
Abstract: A submicrometer transition metal carbonitride is produced having the formula:  MaM'bM''(1-a-b)(C(1-x)Nx)z, wherein <u>M</u> is Ti, Zr or Hf; <u>M'</u> is V, Nb or Ta; <u>M''</u> is Cr, Mo or W; <u>a</u> ranges from 0 to 1; <u>b</u>  ranges from 0 to 1 with the proviso that (a+b) is less than or equal to 1;  <u>x</u> ranges from 0.02 to 0.95 and <u>z</u> ranges from 0.9 to 2. The transition metal carbonitride is produced by mixing (a) a transition metal oxide source of a transition metal in the above formula and (b) a carbon source such as carbon black. This mixture is heated at a rate of between 100 K/sec to 100,000,000 K/sec in a nitrogen containing non-oxidizing gas such as nitrogen or nitrogen mixed with argon to an elevated temperature that makes carbothermal reduction of the transition metal oxide source thermodynamically favorable for a residence time sufficient to convert the transition metal oxide source into at least one product selected from the group consisting of:  (i) a transition metal carbonitride and (ii) a transition metal carbonitride precursor. The product may be exposed to a finishing step involving heating the product to a temperature less than the elevated temperature in a finishing atmosphere such as nitrogen, hydrogen, inert gas or combinations thereof to form submicrometer carbonitrides of higher purity or different stoichiometry.
Patent CA-2280012-A1 (CA)
Inventor: BRITTO IGNATIUS LOY
IPC: F04B13/00
Filed: 1998-02-12
Abstract: The present invention relates to an aerosol dispensing apparatus, more particularly to aerosol dispensing valves (5) incorporating a controlled metered dispensing function wherein the metering chamber (7) holding the next aerosolized dose is in fluidic communication with the reservoir allowing homogenous mixing of the next aerosolized dose to be dispensed.
Patent CA-2280705-A1 (CA)
Inventor: SATO MOTOHIDE
IPC: A61K31/5415
Filed: 1998-12-11
Abstract: L'invention concerne des dérivés de 3-pipéridyl-4-oxoquinazoline, pharmaceutiquement acceptables, représentés par la formule générale suivante (I), ou des sels de ceux-ci. Dans cette formule R représente un amino substitué par un aryle éventuellement substitué ou par un hétéroaryle éventuellement substitué, ou un amino cyclique comme une dibenzazepine; n est un entier allant de 1 à 4; R¿3? et R¿4? représentent chacun un hydrogène, un alkyle inférieur, etc. En raison de leur excellente activité comme inhibiteur de MTP, ces composés (I) peuvent s'utiliser pour l'inhibition de la formation de LDL responsables de maladies artérioscléreuses et permettre la régulation des TG, du cholestérol et des lipoprotéines comme les LDL dans le sans et les lipides cellulaires par la régulation de l'activité MTP. En raison de ces effets, les composés ci-dessus peuvent être considérés comme un nouveau type de remèdes ou d'agents prophylactiques pour les hyperlipémies ou les maladies artérioscléreuses et, de plus, comme remèdes ou agents prophylactiques pour les pancréatites, l'obésité, l'hyperchlolestérolémie, l'hypertriglycéridémie, etc.
Patent CA-2285265-A1 (CA)
Title: Charniere a friction capable d'encliquetage
Inventor: RUDE EDWARD T
IPC: G06F1/16
Filed: 1998-03-20
Abstract: L'invention concerne une petite charnière cylindrique, ou broche pivotante, qui peut être configurée pour obtenir divers rapports entre le couple et l'angle. C'est grâce aux formes de l'arbre du pivot et des plaques de ressort du pivot qu'il est possible d'obtenir le rapport désiré entre le couple et l'angle. Il est possible de réaliser l'encliquetage dans une ou plusieurs position(s) angulaire(s), avec ou sans couple d'amortissement par friction sous d'autres angles. La friction de la charnière se produit de manière symétrique autour de son axe, ce qui permet d'éviter les problèmes liés à la construction asymétrique.
Patent CA-2291014-A1 (CA)
Inventor: BRISTOW GARY
IPC: F24C7/00
Filed: 1998-05-27
Abstract: Apparatus for simulating flames, comprising a source of light (17), a reflector (18), a screen (15), and flame effect means located between the reflector (18) and the screen (15). The flame effect means preferably comprises a sheet of flexible fabric (21), provided with a plurality of slits (28), such that air from a fan (25) causes the sheet (21) to billow, alternately opening and closing the slits (28). Light transmitted from the source towards the flame effect means passes through the openings and falls onto the screen (15) as an area of high intensity light, which as the sheet (21) billows, appears to move upwardly, simulating the appearance of a flickering flame.
Patent CA-2291809-A1 (CA)
Title: Ballistically deployed restraining net system
Inventor: DEGUIRE DANIEL RENE
IPC: F42B12/00
Filed: 1998-05-14
Abstract: A ballistically deployed restraining net system including a cartridge (12) receivable within a barrel, the cartridge (12) having a base (14) and an opposing open end (16). There is a restraining net (34) packaged in the cartridge and a set of weights (18, 20, 22, 24, 26, 28, 30 and 32) attached to the restraining net (34) and packaged within the cartridge (12) between the base (14) of the cartridge and the restraining net (34). A deployment charge (36) ejects the restraining net (34) and the set of weights out of the barrel and out of the cartridge (12) and a spreader charge (38) deploys the weights after the net (34) and the set of weight exit the cartridge (12) so that the weights overtake the net (34) in flight.
Patent CA-2292670-A1 (CA)
Inventor: ANDERSON JAMES S
IPC: C07C225/34
Filed: 1998-06-03
Abstract: The invention provides compositions and methods for the direct dyeing of keratinous fibers, with particular regard to human hair on the head. The compositions of the invention contain novel anthraquinone mixtures in which each of the component anthraquinones has similar polarities. Compared with the known, commercially-available anthraquinone hair dye colorant, Disperse Blue 3 (DB 3), which comprises a mixture of anthraquinones having dissimilar polarities, the anthraquinone mixtures of the present invention surprisingly and advantageously were found to color hair more intensely and also to synergize to a greater extent with other anthraquinones, such as Disperse Violet 1 (DV 1), when used in hair dye formulations. The novel compound 1-[(2-hydroxyethyl)amino]-4-[(2-hydroxypropyl)amino]-9,10-anthracenedione is also disclosed.
Patent CA-2293395-A1 (CA)
Inventor: HARTMAN FREDERICK ANTHONY
IPC: A61Q19/10
Filed: 1997-08-19
Abstract: The present invention relates to a fragrance delivery system which comprises one or more .beta.-ketoester pro-fragrances or pro-accords, said fragrance delivery system useful in a stable, preferably clear, aqueous odor-absorbing compositions. The odor-absorbing compositions can be further characterized in that they comprise solubilized, uncomplexed cyclodextrin, and cyclodextrin compatible antimicrobial actives, cyclodextrin compatible surfactants, cyclodextrin compatible humectants, or mixtures thereof. The aqueous odor-absorbing compositions are for use on inanimate surfaces, especially fabrics, and more specifically clothes, in order to restore and/or maintain freshness by reducing malodor without the need for washing or dry cleaning.
Patent CA-2294410-A1 (CA)
Title: Control system for reciprocating device
Inventor: LAUDER ARTHUR W
IPC: F01B11/00
Filed: 2000-01-07
Abstract: A control system for a reciprocating device. The control system includes a switching valve having a fluid supply inlet, an exhaust outlet, a restrictor on the exhaust outlet, a drive line, a valve operable to connect one of the exhaust outlet and the fluid supply inlet to the drive line and a toggle for operating the valve, the toggle being movable by motive force through an arc between a first position in which fluid flow is from the fluid supply inlet to the drive line and a second position in which fluid flow is from the drive line to the exhaust outlet, the toggle passing through a middle position where fluid flow may flow from the drive line to the exhaust outlet and from the fluid supply inlet to the drive line.  A reciprocating device is provided that is operable to move in a first direction due to fluid pressure in the drive line and a second, opposed, direction due to a motive force activator when pressure in the drive line is reduced (exhausted). A trigger on the reciprocating device moves with the reciprocating device. A connector is disposed between the trigger and the toggle. The connector being operable to move the toggle into the first position when moving in the second direction and to move the toggle into the second position when moving in the first direction. The connector includes a spring arranged to transmit forces from the trigger to the toggle when the trigger is moving in the first or second direction (or both, with two springs), the spring storing energy while moving in the first or second direction to force the toggle through the middle position.
Patent CA-2294459-A1 (CA)
Title: Fuzzy inference system or adaptive neuro-fuzzy inference system, and intelligent agent for the dynamic generation and retrieval of user interface software modules
Inventor: MAYORGA LOPEZ RENE V
IPC: G06F3/048
Filed: 1998-06-30
Abstract: A method of operating a target system wherein small changes in input variables produce small changes in output variables in a manner permits system learning on a time dependent basis. The rate of change of the system output is directly dependent upon the product of the rate of change of the system input and a matrix consisting of input variables and antecedent and consequent parameters. A preferred performance criterion is obtained through the approximation of the said matrix to a weighted-augmented pseudo-inverse Jacobian. Off-line, the system undergoes a series of iterations using a wide range of input variables wherein the actual outputs are compared to the desired outputs and optimized values for the antecedent and consequent parameters are obtained and passed back to the said matrix for use in the subsequent iteration.
Patent CA-2295212-A1 (CA)
Inventor: TREACY MAURICE
IPC: A61P31/04
Filed: 1998-07-01
Abstract: Novel polynucleotides and the proteins encoded thereby are disclosed.