baber/WOPTO huggingface dataset:
Patent CA-2068145-C (CA)
Title: Towing swivel for pipe inspection or other vehicle
Inventor: SMART DAVID
IPC: F16L55/30
Filed: 1992-05-07
Granted: 1996-08-20
Abstract: A vehicle 10 which inspects pipes 12 using flux-leakage has a flux generating electromagnet 14 and foils 18, 20 to transfer the flux to the pipewall 12.  Sensors 22 detect flux forced to leak from the pipe by defects.  The vehicle is required to pass 1-D bends as shown and has a swivel 40 having a load bar 48 on which is a link 46 of a towing chain 26. On straight pipe the link 46 occupies a first position nearer the axis 44.          In a bend the swivel turns so that the link 46 can slide along the load bar 48 to a second position further from the axis 44.  This reduces the angle which the chain 26 makes with the axis 44 and jamming of the vehicle 10 in the bend is avoided.   In a modification the load bar instead of being to one side of the axis 44 extends symmetrically on both sides of the axis 44.
Patent CA-2070901-C (CA)
Title: Monotube cable fiber access tool
Inventor: FAUST ALISON M
IPC: G02B6/44
Filed: 1992-06-10
Granted: 1997-05-06
Abstract: A tool is provided for the purpose of allowing access to optical fibers held within a monotube of a monotube design optical fiber cable.  The monotube is held in a central channel extending the length of and through the substantial center of the tool.  The strength members of the cable, which extend longitudinally on both sides of the monotube, are held in channels extending longitudinally with and on both sides of the tool's central channel.  A blade is inserted from the main body into the monotube so as to define a chord through the cross section of the monotube.  The tool is drawn along the monotube so as to remove a portion of its protective covering thereby allowing access to the optical fibers held therein without having to sever the strength members.  Various inserts may be utilized with the main body of the tool, the various inserts corresponding to the different monotube dimensions of the various monotube optical fiber cables.
Patent CA-2081749-C (CA)
Inventor: BOWEN LARRY
IPC: A24D1/00
Filed: 1992-10-29
Granted: 1995-12-05
Abstract: A novel cigarette is described which has a greater number of puffs, at least about 2 more, preferably at least about 4 more and more preferably at least about 6 more, than a conventional cigarette of same dimensions and  length of tobacco rod.   The cigarettes  may be partially smoked, extinguished, stored and then resmoked. The greater-than-normal number of puffs may be achieved by employing a slower burning tobacco blend, a lower draw resistance tobacco, a greater tobacco density and/or a burn rate retardant wrapper.
Patent CA-2085264-C (CA)
Title: High visible, low uv and low ir transmittance green glass composition
Inventor: BECKWITH STEVEN PAUL
IPC: C03C3/087
Filed: 1993-02-12
Granted: 1997-01-28
Abstract: A  soda-lime-silica  green  glass  favoring  the yellow side, rather than the bluish side of the spectrum, is produced having high visible transmittance, low infrared energy   transmittance,    low   ultraviolet   radiation transmittance, and low total solar energy transmittance by manipulating the reduction of iron (as Fe2O3) to FeO and the percent   of   these   two   oxides  to   achieve   these characteristics  without  the  use  of  CeO2  or  other  UV absorbing additives and by using conventional glass melting and refining apparatus.
Patent CA-2085474-C (CA)
Title: Apparatus for storing drill rods
Inventor: RAJAKALLIO PAULI
IPC: B65G1/127
Filed: 1991-06-11
Granted: 2002-01-29
Abstract: An apparatus for storing drill rods (8), compris-ing two drill rod cartridges (7a, 7b) each comprising a rotating rotor (13a, 13b) provided with finger boards, means (16, 17) for guiding the drill rods (8) into gaps (15) formed by the finger boards circumferentially around the axis of the rotor (13a, 13b). The rotors (13a, 13b) are arranged to rotate in opposite directions in such a way that projections (14) in the finger boards of one rotor (13a, 13b) are positioned in alignment with gaps (15) in the other rotor (13b, 13a), the drill rods (8) being positioned therebetween and then passed alternately with the rotor (13a, 13b) of the two cartridges (7a, 7b) along spirals (16, 17) to a circumference about the rotors (13a, 13b).
Patent CA-2092241-C (CA)
Title: Overhead door pre-loaded and pre-assembled torsion spring counterbalance assembly
Inventor: HUSSELTON MAHLON E
IPC: E05F1/04
Filed: 1993-03-23
Granted: 1996-04-09
Abstract: A torsion spring counterbalance assembly having one end of a torsion spring attached to a center support bracket with the other end attached to a torsion shaft around which the torsion spring is pre-loaded with the torsion shaft releasably locked to the center support bracket for allowing the tension of the pre-loaded torsion spring to be released after installation with an overhead garage door to counterbalance the garage door between open and closed positions via lift bands wound about drums mounted at the ends of the torsion shaft and secured to the door bottom by wire brackets.          The drums are selectively connected for rotation with the torsion shaft and disconnected from rotation with the torsion shaft to permit adjustment of the tension and resulting torque of the torsion spring.  A safety interlock mechanism limits the rotation of the torsion shaft relative to the center support bracket in the event of a malfunction upon initial installation.   A manually actuated eccentric cam selectively locks and unlocks the lift band drums for lateral adjustment of the drums on the torsion shaft to properly align the spacing of the drums relative to variations in door width.   A sleeve inside the torsion spring maintains the length of the torsion spring at its fully wound position to prevent lateral thrust on torsion shaft end supports enabling a single spring to be used on garage doors of various sizes and weights.
Patent CA-2093827-C (CA)
Title: Pyrethroid composition
Inventor: GLENN MICHAEL STEPHEN
IPC: C07C255/39
Filed: 1992-01-15
Granted: 1997-09-23
Abstract: The four isomer compound derived from racemiccis/trans-3-(2,2-dichloroethenyl)-2,2-dimethylcycllopropanecarboxylic acid and (S)(cyano)(3-phenoxyphenyl)methanol is twice as effective as cypermethrin against certain insect species. but quite unexpectedly is significantly less toxic to mammals and certain species of fish at rates giving commercial control of target crop insects.
Patent CA-2097516-C (CA)
Title: A procatalyst composition containing substituted maleic of fumaric acid esters as electron donor for olefin polymerization
Inventor: IISKOLA EERO
IPC: C08F4/654
Filed: 1992-10-01
Granted: 2004-01-27
Abstract: It is known that an electron donor together with a compound of tetravalent titanium on a magnesium halide carrier is us-able if it is a mono- or polyester of an unsaturated polycarboxylic acid in which at least two carboxyl groups are joined to conti-guous carbon atoms which form double bonds. It has now been observed that activity and stereospecificity increase if at least one of the said carbon atoms, or a carbon atom joined thereto by a double bond, is substituted by a hydrocarbon group having 1-20 carbon atoms. Maleic and fumaric acid esters substituted with the said hydrocarbon group can be mentioned as examples.
Patent CA-2098408-C (CA)
Inventor: RAFANELLI GERARD L
IPC: G01S17/90
Filed: 1993-06-15
Granted: 1999-08-10
Abstract: A spinning strip aperture imaging radiometer sensor system and data processing method that is capable of synthesizing full circular aperture images from a plurality of image frames acquired by the strip aperture imaging sensor. One embodiment of the imaging system comprises a rotating strip aperture wide field of view telescope, a two dimensional detector array used to detect images in the telescope's focal plane, a rotation compensation device used to prevent rotational smear during the integration time of the detectors, a signal processor used to record a plurality of image frames of a target scene that is imaged by the telescope as it rotates around its optical axis, and a signal processor and method used to synthesize the full circular aperture image from the recorded images. The operation of the full aperture image synthesis method hinges upon the ability of the rotating strip aperture to measure all of the spatial frequencies contained in a full circular aperture image measurement. Having knowledge of the strip apertures' spatial frequency passband, and the temporal registrations of each of the recorded strip aperture images permits synthesis of the full aperture image by the sensor system and image synthesis method. Image synthesis may be accomplished in the spatial or spatial frequency domains. General and illustrative examples of the image synthesis procedure and first order noise performance predictions are described. A general form of the invention utilizes two dimensional spatial frequency information to greatly reduce the line of sight stability requirements of the telescope.
Patent CA-2101226-C (CA)
Title: Track guided train of at least two cars having steered single axle bogies
Inventor: ROSE ROLF-DIETER
IPC: B61F3/12
Filed: 1993-07-23
Granted: 2000-11-21
Abstract: A train of at least two track guided cars with single axial bogies has an orientation control for the single axial bogies which essentially guarantees an exact orientation of the single axle bogies perpendicular to the longitudinal axis of the track during all traveling conditions. A substantially inelastic axle steering arrangement is combined with an elastic automatic axle orienting arrangement (self-orientation elasticity e), which provides for an automatic orienting as well as controlled steering of the single axle bogie. This combined bogie orientation control will automatically correct the incorrect bogie orientation angles which are produced with inelastically linked bogie steering at the entry into and the exit from a curve.
Patent CA-2102167-C (CA)
Inventor: NOURRCIER CHARLES E
IPC: G01S17/34
Filed: 1993-11-01
Granted: 1996-08-06
Abstract: A pulse compression signal processor (10) for a laser radar system which utilizes substantially identical negative slope SAW matched filters (30,44) for compressing both the up and down chirps of a bi-directional echo signal (14).  The signal processor (10) receives the echo (14)  and  splits  it  into  two  signals  (16,  18)  for processing by separate negative slope SAW matched filters (30, 44).
Patent CA-2105327-C (CA)
Inventor: SHREWSBURG JAMES E
IPC: C08G18/65
Filed: 1993-09-01
Granted: 2002-06-25
Abstract: The present invention is directed to flexible polyurethane foam formulations and the foams prepared using these formulations. The formulations are two components, comprising;  A) a diisocyane mixture of modified diisocyanates or mixtures of modified and unmodified diisocyanates; and, B) a resin containing, based on the total weight of the resin, 1) from 60 percent to about 85 percent by weight conventional polyols, 2) from 12 percent to about 30 percent by weight of a graft polymer dispersion, 3) optionally up to about 1 percent by weight of a surfactant, 4) from 0.3 percent to about 2.0 percent by weight water, 5) from 0.2 percent to about 1.2 percent by weight of a catalyst capable of promoting urethane formation, 6) optionally a chain extender, and 7) optional additives such as pigments and fillers. The foams prepared from the foregoing formulation exhibit enhanced tensile elongation, tensile strength, and tear strength.
Patent CA-2109947-C (CA)
Title: Rake receiver with selective ray combining
Inventor: BOTTOMLEY GREGORY E
IPC: H04B1/7115
Filed: 1993-03-25
Granted: 2003-05-20
Abstract: Chips samples arrive via an RF receiver and I and Q buffers, where they are passed to a multiplexer. The multiplexer selects two independent ranges of chip samples from the same or different channels. The outputs of the multiplexer are correlated to a known sequence in complex correlators, whose output are, in turn, multiplied by complex weights in complex multipliers. The products are then passed to an accumulator, whose output is sent to a threshold decision device to yield the binary data extracted from the received signal.
Patent CA-2110032-C (CA)
Inventor: MUTO HIROYASU
IPC: H04L27/22
Filed: 1993-11-25
Granted: 1997-05-20
Abstract: Supplied with a transmitted signal defined by sequence signal vectors each successive pair of which has an equal predetermined phase variation, a demodulator quadrature-demodulates a transmitted signal into a demodulated signal with reference to a standard signal of a standard frequency.  The demodulated signal is defined by a sequence of demodulated vectors.  An A/D section samples the demodulated vectors at a predetermined sampling rate to quantize the demodulated vectors into quantized vectors.  A signal processor constructs a composite vector from a predetermined number of the quantized vectors.  The signal processor calculates a phase difference between the composite vector and a predetermined vector to detect a frequency error between the standard frequency and a carrier frequency of the transmitted signal.
Patent CA-2111324-C (CA)
Title: Methode et appareil pour le controle des troubles du sommeil dus a la respiration
Inventor: AXE JOHN R
IPC: A61M16/00
Filed: 1992-06-12
Granted: 1999-05-11
Abstract: Procédé et dispositif servant à réguler la respiration de personnes souffrant de troubles respiratoires pendant le sommeil, le procédé consistant à utiliser une pression variable. Le compresseur (15) alimente en air les passages respiratoires de l'utilisateur, à des pressions relativement faibles, pendant que l'utilisateur dort. Un transducteur de pression (17) surveille la pression et la convertit en un signal électrique. Celui-ci est filtré et traité afin d'être comparé aux caractéristiques de formes d'ondes produites pendant un ronflement. Si l'enveloppe de la forme d'onde dépasse une valeur seuil moyenne en durée et en superficie, le microprocesseur (23) va considérer que l'enveloppe pourrait être associée à un ronflement. Si un nombre sélectionné d'enveloppes de ce type sont produites pendant une période sélectionnée, le microprocesseur considère qu'un ronflement est produit, et augmente la pression du compresseur. Si un ronflement n'est pas détecté pendant une certaine période, le microprocesseur (23) diminue progressivement le niveau.
Patent CA-2118615-C (CA)
Inventor: DOI NOBUKAZU
IPC: H04W16/06
Filed: 1994-03-09
Granted: 1999-09-28
Abstract: A cellular mobile communication system includes a plurality of base stations connected to a relay station, each base station having adaptability for coping with change in traffic volume within a relevant cell covered thereby. Each base station includes a variable gain power amplifier for amplifying a pilot signal and a power control circuit for controlling the gain of the power amplifier. The power control circuit controls gain of a pilot signal sending power in accordance with a control signal supplied from a device installed in a relay station for monitoring traffic states of the individual base stations. The relay station issues a command for lowering the power gain for the base station which covers a traffic-concentrated cell while raising the power gain for the base stations covering the neighboring cells, to thereby contract the size of the traffic-concentrated cell. With a smaller number of base stations, communication demand can be controlled over a broad area.
Patent CA-2120875-C (CA)
Title: Durable low-emissivity solar control thin film coating
Inventor: WOLFE JESSE D
IPC: G02B1/10
Filed: 1994-04-08
Granted: 1999-07-06
Abstract: An infrared reflecting interference filter capable of transmitting a desired proportion of visible radiation while reflecting a large portion of incident solar radiation is provided.  The filter comprises a transparent substrate onto which is deposited a dielectric layer, followed by metal and dielectric layers.  In between each of the dielectric and metal layers is deposited a precoat layer that promotes adhesion between the dielectric and the metal.   One aspect of the invention is the use of a film comprising nickel and chromium nitride for each of the metal precoat layers. These precoat layers are thin so that there is less absorption of visible light, but yet maintains good adhesive properties. Another aspect of the invention is the use of silver as the metal layer. Specifically, silver is sputtered in an atmosphere containing a mixture of nitrogen and argon or other inert gas.  It was found that the presence of nitrogen produces a silver layer that is more durable than silver films sputtered in an atmosphere containing essentially pure inert gas.  In one embodiment, the interference filter comprises a glass substrate onto which is deposited a thin-film design consisting of five layers, namely: titanium  dioxide,  nickel-chromium  nitride,  silver, nickel-chromium nitride, and silicon nitride.
Patent CA-2122431-C (CA)
Title: Topical administration of vitamin d to mammals and compositions therefor
Inventor: VIETH REINHOLD W
IPC: A61K31/59
Filed: 1994-04-28
Granted: 2006-10-10
Abstract: A method of delivering a nutritional or therapeutic amount of vitamin D to the blood of a mammal, which method comprises topically administering to the skin of the mammal a vitamin D nutritionally or therapeutically-effective amount of a composition comprising a nutritional or therapeutically effective amount of vitamin D in a suitable pharmaceutically-acceptable carrier, diluent or adjuvant therefor and compositions therefor. The method provides a more suitable, safer and efficient way of providing a mammal with its daily vitamin D intake.
Patent CA-2133064-C (CA)
Title: Tissu de papier absorbant doux, contenant un compose assouplissant ester-amine quaternaire biodegradable et une resine a resistance permanente a l'humidite
Inventor: PHAN DEAN V
IPC: C07C219/06
Filed: 1993-03-29
Granted: 1999-06-01
Abstract: Bandes de papier utilisées dans la fabrication de produits doux et absorbants tels que des serviettes, des serviettes de table et des serviettes à démaquiller, et procédés de fabrication des dites bandes. Lesdites bandes de papier comportent de la pâte à papier, un composé adoucissant d'amine-ester quaternisé biodégradable, un agent mouillant et une résine de résistance permanente à l'humidité. Le procédé consiste dans une première phase à former une composition à papier aqueuse à partir des composants susmentionnés. Les deuxième et troisième phases du procédé de base consistent à déposer la composition à papier sur une surface à trous telle qu'un fourdrinier et à enlever l'eau de la composition déposée. Dans un autre procédé, on utilise la composition contenant les composants susmentionnés dans un procédé de fabrication de papier qui permet d'obtenir une bande fibreuse densifiée selon une configuration présentant une zone de main relativement bouffante, de densité de fibres relativement basse dans un réseau de zones espacées de densité de fibres relativement élevée.
Patent CA-2137228-C (CA)
Title: Ethylene copolymer cold flow additives for fuel oil
Inventor: DAVIES BRIAN WILLIAM
IPC: C10M145/14
Filed: 1993-06-29
Granted: 2003-10-14
Abstract: Compositions comprising (a) an ethylene-mixed unsaturated ester copolymer or (b) two or more ethylene-unsaturated ester copolymers differing, for example, in their ester chains improve the low temperature properties of fuel oils.
Patent CA-2147567-C (CA)
Inventor: BARNARD CHRISTOPHER FRANCIS JA
IPC: C07F15/00
Filed: 1995-04-21
Granted: 2006-01-17
Abstract: Pt(IV) complexes of formula I,   where X is halide, pseudohalide or OH, R1 and R2 are H, C1 to C6 alkyl, cycloalkyl, aryl or R1NH2 is a heterocyclic hydrogen donor, and may be the same or different, R3 and R4 are H, C1 to C5 alkyl, cycloalkyl or aryl and may be the same or different, and R5 is H, Me or Et, have activity in vitro and in vivo against cancer cells.
Patent CA-2148604-C (CA)
Inventor: TRAYLOR KEVIN BRUCE
IPC: H03D7/00
Filed: 1994-08-22
Granted: 1998-12-08
Abstract: An apparatus and method is provided of recovering a frequency modulated signal having a first component of the frequency modulated signal at a zero-RF  spectral location and a second component of the frequency modulated signal at a zero-RF spectral location in quadrature relationship to the first component.  The method includes the steps of: upconverting and summing the first and second components to produce a reference signal (100) in a first image balanced mixer (15-18), time delaying the first and second components, upconverting and summing the delayed, upconverted first and second components to produce a delayed reference signal (101) in quadrature relationship to the reference signal in a further image balanced mixer (18-23); limiting the reference and delayed signal (102) in a limiter (25-26); and exclusive or-ing (103) the limited reference and limited delayed signal in an XOR (24).
Patent CA-2148986-C (CA)
Title: Web-fed printing machine having a register device for aligning the paper web
Inventor: LAPP JOACHIM ALFRED HEINZ
IPC: B65H23/038
Filed: 1995-05-09
Granted: 2006-05-02
Abstract: The web-fed printing machine has two cylinders (2, 3) which form the nip, a paper-web-directing device (10) with an infeed roller (14) and a discharge roller (15), which are arranged adjustably on both sides of the nip (S), and an upstream web-feeding device (20), which likewise exhibits an infeed roller (22) and a discharge roller (23). In order to align the paper web, the web-directing device (10) can be displaced in a plane running through the axes of the rollers, and can be adjusted as a function of the signals from web-edge sensors (16, 17) such that it can be adjusted in the direction of the axes of rotation of the rollers and can be pivoted into an oblique position. The web-feeding device (20) can be pivoted about a stationary spindle (24) and is connected mechanically to the web-directing device.
Patent CA-2150820-C (CA)
Inventor: WILSON GREGORY MICHAEL
IPC: B32B27/32
Filed: 1993-12-13
Granted: 2004-08-10
Abstract: The present invention relates to multilayer coextruded thermoplastic stretch wrap films useful for the packaging or palletizing of goods. More particularly the films of this invention include at least three layers, the three layers having two outer layers and an intermediate layer positioned between said outer layers, the intermediate layer comprising a mixture of a first linear low density polyethylene and a polyolefin selected from the group consisting of homopolymers of propylene, copolymers of propylene and ethylene and mixtures thereof and at least one of the two outer layers comprising a second linear low density polyethylene. The force required to stretch the films of this invention may be controlled by the ratio of polyethylene to the selected polyolefin of the intermediate layer, by controlling the thickness of the intermediate layer relative to overall film thickness, by controlling the melt flow properties of the intermediate layer polyolefin resin or by a combination thereof.
Patent CA-2151223-C (CA)
Title: Method and apparatus for sensing a rearward facing child restraining seat
Inventor: MAZUR JOSEPH F
IPC: B60R21/16
Filed: 1995-06-07
Granted: 1998-08-04
Abstract: An apparatus (20) for preventing actuation of an air bag restraining device (25) of a vehicle includes a weight sensor (36), a distance sensor (42), and a seat belt payout sensor (66).  A controller (22) is operatively connected to the sensors (36, 42, 66) and to the air bag restraining device (25).  The controller (22) prevents actuation of the air bag when the sensors (36, 42, 66) sense a rearward facing child seat (46) on the occupant seat (40) by sensing a weight of an object less than a predetermined amount, a distance to an object on the seat (40) less than a predetermined amount, and a seat belt payout of greater than a predetermined amount.