baber/WOPTO huggingface dataset:
Patent CA-2055776-C (CA)
Title: Impact sensor for vehicle safety restraint system
Inventor: MEISTER JACK B
IPC: G01P15/135
Filed: 1991-11-18
Granted: 2000-03-14
Abstract: Abstract of the Disclosure An acceleration sensor that comprises a body of non-magnetic construction having a linear internal cavity of uniform cross section, and a pair of permanent magnetics movably mounted within such cavity with like magnetic poles opposed to each other, such that the magnetics are urged to opposite ends of the cavity by force of magnetic repulsion therebetween.  At least one weigand wire is positioned externally of the cavity between the cavity ends, and has a longitudinal dimension parallel to the lineal dimension of the cavity.  The weigand wire is characterized by two stable magnetic flux-generating states dependent  upon  application  of  an  external  magnetic  field  of appropriate polarity for switching between such states. An electrical coil is positioned adjacent to the weigand wire, and is responsive to switching between the two flux-generating states for generating a sensor output signal as a result of acceleration forces on either of the magnets sufficient to overcome the force of magnetic repulsion therebetween, and thus to bring one of the magnets into proximity with the wire.
Patent CA-2057858-C (CA)
Title: Cyclodextrin polymer beads
Inventor: VANZO EDWARD
IPC: C09K23/52
Filed: 1990-08-07
Granted: 1995-10-03
Abstract: The process for making entails forming a droplet of water, cyc-lodextrin and base in a non-polar solvent such as methylisobutylke-tone using polyvinyl butyral as an emulsifier. A cross-linking agent such as epichlorohydrin is reacted with the cyclodextrin to form a spherical bead having a surface substantially free of chemically bonded emulsifying agent. Polycyclodextrin beads may be used in chromatographic columns and as agents for removing polychlorinat-ed biphenyl compounds from the environment.
Patent CA-2062549-C (CA)
Title: Drive wheel for a belted track crawler
Inventor: BRITTAIN ROBERT WILLIS
IPC: B62D55/088
Filed: 1992-03-09
Granted: 1995-11-07
Abstract: The invention is directed to a drive wheel for a belted track crawler having circumferentially spaced frictional engagement elements.  Adjacent frictional engagement elements define circumferential gaps in the wheel for removing mud and debris from the track wheel interface.  Furthermore the frictional engagement elements are detachably mounted to mounting plates on the wheel hub.
Patent CA-2074266-C (CA)
Title: Electrospray ion source for mass spectrometry
Inventor: CHAIT BRIAN T
IPC: H01J49/10
Filed: 1990-09-19
Granted: 1999-02-02
Abstract: An electrospray ion source is designated for ready and simple plugging into commercial mass analyzers for mass spectrometric analysis of organic molecules. The electrospray is carried out in the ambient air (14) and the ions and other charged species enter the mass analzyer (31) through a long metal capillary tube (11) and three stages of differential pumping. The use of the long tube (11) allows (a) convenient injection of the ions into the mass analyzer (31); (b) optimization of the spray by direct visualization in the air (11-14); (c) efficient and controlled heat transfer to the droplets; and (d) efficient pumping of the region (32) between the capillary exit and the skimmer (28). Desolvation of the solvated ions is carried out using a combination of controlled heat transfer to the charged droplets during the transit through the tube (11) and collisional activation in a region of reduced pressure (32). Desolvation with this system does not involve use of a strong countercurrent flow of heated gas. The system may also be used to obtain the collisional activated fragmentation spectra of molecule ions. The use of a metal capillary tube (11) avoids complications from charging that arise from the use of dieletric capillary tubes.
Patent CA-2079537-C (CA)
Inventor: HENRICH THOMAS
IPC: A61F13/56
Filed: 1992-09-30
Granted: 1999-01-05
Abstract: An absorbent article, such as a sanitary napkin, having flaps and zones of differential extensibility for relieving the stresses that develop in the flaps when the flaps are folded down along the edges of crotch of the wearer's undergarments is provided.
Patent CA-2082751-C (CA)
Title: Fruit spread and method of preparing same
Inventor: GAITHER KAREN S
IPC: A23L21/15
Filed: 1992-11-12
Granted: 1997-11-04
Abstract: An edible fruit spread in a form similar to a jelly or jam having improved texture and flavor characteristics and a decreased dissipation rate in the mouth during consumption is prepared by incorporating a pectin,  starch, cellulose, carrageenan or protein based fat mimetic into a fruit spread recipe.
Patent CA-2086925-C (CA)
Title: New salts derived from dialkylaminoalkysulphonyl-26 pristinamycin iib
Inventor: BARRIERE JEAN-CLAUDE
IPC: A61P31/04
Filed: 1991-07-15
Granted: 2002-12-10
Abstract: PCT No. PCT/FR91/00582 Sec. 371 Date Jan. 4, 1993 Sec. 102(e) Date Jan. 4, 1993 PCT Filed Jul. 15, 1991 PCT Pub. No. WO92/01694 PCT Pub. Date Feb. 6, 1992.Di-p-toluoyl tartrate, di-t-butylacetyl tartrate, di-butyryl tartrate and di-i-valeryl tartrate of (dialkylamino-2 alkyl)sulphonyl-26 pristinamycin IIB having general formula (I) wherein Alk represents a straight or branched alkylene radical and R represents straight or branched alkyl radicals, said radicals having from 1 to 10 carbon atoms.
Patent CA-2088665-C (CA)
Title: Methotrexate derivative
Inventor: OHI NOBUHIRO
IPC: A61K31/675
Filed: 1991-08-14
Granted: 2001-05-01
Abstract: Disclosed is a compound represented by the formula:    wherein R1 : CH2, CH2CH2, CH2O, CH2S, CH2S0; R2 ; hydrogen atom, a lower alkyl group having 1 to 4 carbon atoms or a benzyl group; n: an integer of 1 to 4; R3: COOR4, NHCOR5, CONR6R7, PO3H2, SO3H.      The compound shows potent antirheumatic function, psoriasis curing function and carcinostatic function and has low toxicity whereby it is available as a medicine.
Patent CA-2094793-C (CA)
Inventor: STREICH STEVEN G
IPC: E21B29/00
Filed: 1993-04-23
Granted: 1998-08-18
Abstract: A downhole tool apparatus and methods of drilling the apparatus.  The apparatus may include, but is not limited to, packers  and  bridge  plugs  utilizing  non-metallic  slip components.  The non-metallic material may include engineering grade plastics.  In one embodiment, the slips are separate and held in place in an initial position around the slip wedge by a retainer ring.   In another embodiment,  the slips  are integrally formed with a ring portion which holds the slips in the initial position around the wedge; in this embodiment, the ring portion is made of a fracturable non-metallic material which fractures during a setting operation to separate the slips.     Methods  of drilling out the apparatus without significant variations  in the  drilling  speed  and weight applied to the drill bit may be employed. Alternative drill bit types, such as polycrystalline diamond compact (PDC) bits may also be used.
Patent CA-2104022-C (CA)
Inventor: CHUI CHOK-FUN C
IPC: C07K14/425
Filed: 1992-02-14
Granted: 2003-03-18
Abstract: There is provided a novel nucleic acid fragment for the overexpression of a high methionine seed storage protein in plants. This nucleic acid fragment is capable of transforming plants, particularly crop plants, to overexpress a corn seed storage protein in seeds or leaves. The invention is of significant interest for the nutritional improvement of sulfur amino acid-poor plants, such as corn and soybean. There is also provided the polypeptide product of the nucleic acid fragments as well as chimeric genes, host cells, plants, seeds and microorganisms containing the nucleic acid fragment.      Methods for obtaining the overexpression of the seed storage protein in microorganisms are also provided.
Patent CA-2108839-C (CA)
Title: Thermochromic opaque composition, laminate member employing the same, and three dimensional member employing said laminate member and capable of concealing and revealing the interior
Inventor: KITO TSUTOMU
IPC: B43L13/00
Filed: 1993-10-20
Granted: 2000-01-18
Abstract: There are provided a thermochromic opaque composition capable of exhibiting change in transparency together with change in color in response to temperature variation, a laminate member employing the same, and a three-dimensional article capable of concealing and revealing the interior, utilizing the laminate member.      The thermochromic opaque composition is formed by dispersing a thermochromic material, capable of developing and erasing color by an electron donating-accepting reaction, in small particles in vinyl chloride-vinyl acetate matrix resin.      The above-mentioned structure realizes reversible change in transparency, together with change in color, in response to temperature variation, with hysteresis with a temperature difference of 10°C at minimum to 50°C between the high and low trigger temperatures.
Patent CA-2110430-C (CA)
Title: Laminated non-combustible board for forming ductwork and headers
Inventor: SNYDER DARRYL L
IPC: E04B9/00
Filed: 1993-12-01
Granted: 1998-09-22
Abstract: The present invention relates to a laminated structural sheet material or board having a planar configuration and comprising a hollow core portion and metallic foil exterior surfaces especially useful for forming ductwork, headers and deflectors in heating and cooling systems.  The sheet material is substantially moistureproof, smokeproof and fireproof for forming such ductwork, headers and deflectors in combination with ceiling and/or floor joists and flooring materials, the material or board being readily bendable and having scored edges for attachment to wooden ceiling and/or floor joists in planar or angled relation.
Patent CA-2113180-C (CA)
Inventor: HALL RICHARD W
IPC: B26D1/20
Filed: 1992-07-17
Granted: 1999-01-05
Abstract: A bale debanding device (12) having a band breaking blade (42), a band winding mandrel (16), and a mandrel cleaning plate (36) are mounted to a frame (14). A support table (26) is attached to the frame (14) for receiving a bale of used paper product (28) that is held together by banding material (30). As the bale (30) is moved past the band breaking blade (42), a band retention notch (68) engages a band (30) and by stretching it, breaks the band (30).  Once a band (30) is broken, an extensible/retractable band catch (18) extending from the surface of the mandrel (16) engages the band (30) and facilitates the winding of the band (30) around the mandrel (16). Once all bands (30) have been removed from the bale (28), the band catch (18) is retracted to a position within the mandrel (16), a protective hood (47) is pivoted away from the mandrel (16), the mandrel (16) is elevated to meet the mandrel cleaning plate (36) and the cleaning plate (36) is moved axially along the mandrel (16), sweeping the bands (30) off a free end of the mandrel (16). This process is repeated to remove bands from other surfaces of the bale, thereby releasing the waste paper in preparation of processing.
Patent CA-2126882-C (CA)
Title: Tunable optical arrangement
Inventor: WEBER JEAN-PIERRE
IPC: H01S3/106
Filed: 1994-06-28
Granted: 2005-08-09
Abstract: An optical device which comprises at least one first passive or active element and an integrated grating arrangement. The device furthermore comprises a tuning device for controlling and changing the angle of incidence of a beam incident to the grating arrangement. The tuning device comprises a variable index prism arranged between said first active or passive element and the grating arrangement.
Patent CA-2129376-C (CA)
Inventor: CARRINGTON JANICE
IPC: A42B3/00
Filed: 1994-08-03
Granted: 1999-10-19
Abstract: A protective hat for children and adults comprises a head-enveloping member constructed of a core of impact absorbent foam, encapsulated within a shell of textile fabric material, the textile fabric material providing the inner and outer surfaces of the hat. The core is so constructed as to provide for conformity to the shape of head of the wearer, and to allow for ventilation. The bulk and density of the foam core is such that in sizes. for children, the hat provides significant buoyancy.
Patent CA-2130656-C (CA)
Title: Filter screen and method of making same
Inventor: COOPER ROBERT J
IPC: B01D35/157
Filed: 1994-08-22
Granted: 2000-10-24
Abstract: A filter for a valve inlet is drawn into a flat-bottomed cup shape from a blank of fine mesh woven screen and formed with an outwardly extending mounting flange of material folded back on itself, The region of the cup-shape proximate the flange is enlarged to a predetermined diameter for closely interfitting the flow passage into which the cup-shaped member is installed.
Patent CA-2131041-C (CA)
Title: Exhaust emission control catalyst
Inventor: HAYASHI TADAYOSHI
IPC: F01N3/28
Filed: 1994-08-29
Granted: 1998-08-18
Abstract: A bottom washcoat layer 2 and a top washcoat layer 3 including alumina (Al2O3) are sequentially laminated onto the surface of a monolith carrier 1.  Cerium, zirconium and palladium are carried in the bottom washcoat layer 2, and platinum, rhodium, barium and cerium are carried in the top washcoat layer 3.  The cerium content in the top washcoat layer 3 is set smaller than that in the bottom washcoat layer 2.  This causes the hydrocarbon conversion performance of rhodium and the nitrogen conversion performance of platinum in the top washcoat layer 3 to be balanced properly, while maintaining the hydrocarbon conversion performance of palladium in the bottom washcoat layer, thereby providing an improved exhaust gas purification performance as a whole.  In addition, platinum and palladium carried in separate washcoat layers make it possible to inhibit the formation of a platinum-palladium alloy under high temperature conditions to prevent a reduction in exhaust gas purification effect.          Further, the heat deterioration of cerium can be inhibited by zirconium, and the alumina surface area can be stabilized by barium, thereby providing an improved durability of the catalyst under high temperature conditions.
Patent CA-2146958-C (CA)
Title: Methods and compositions for reducing fouling deposit formation in jet engines
Inventor: WRIGHT BRUCE E
IPC: C10L10/04
Filed: 1995-04-12
Granted: 2007-08-14
Abstract: Methods and compositions are provided for cleaning and inhibiting the formation of fouling deposits on jet engine components during the combustion of turbine combustion fuel oils. Methods and compositions are also provided for inhibiting the formation and emission of soot and smoke from jet engine exhaust during turbine combustion fuel oil combus-tion. The methods employ a derivative of (thio)phosphonic acid added to the turbine combustion fuel oil. The preferred derivative is pentaerythritol ester of polyisobutenylthiophosphonic acid.
Patent CA-2147978-C (CA)
Title: Ossature de pont suspendu
Inventor: BROWN WILLIAM
IPC: E01D19/16
Filed: 1993-10-27
Granted: 2001-04-03
Abstract: Construction destinée à être utilisée sur un pont suspendu du type comprenant une structure principale essentiellement plate, dont la surface supérieure forme la chaussée sur laquelle circulent les moyens de transport traversant le pont. Cette construction est fixée à un système de suspension formée par une pluralité de poutres verticales (6) reliées à des câbles caténaires (5) ancrés dans les piliers d'extrémités du pont. La construction est constituée d'au moins deux corps longitudinaux en forme de boîte parallèles correspondant à deux chaussées du pont, espacés l'un de l'autre d'une distance égale à leur dimension transversale. Lesdits corps possèdent une section dont le profil est apte à favoriser l'écoulement régulier du vent et ils sont interconnectés, à intervalles réguliers, à l'aide de guides rigides transversaux (4) ayant aussi une forme de boîte et portant à leurs extrémités des moyens permettant leur ancrage dans les poutres de suspension (6).
Patent CA-2151086-C (CA)
Title: Apparatus for inflating an inflatable vehicle occupant restraint
Inventor: FAIGLE ERNST M
IPC: B60R21/26
Filed: 1995-06-06
Granted: 1998-11-24
Abstract: An apparatus (10) for inflating an inflatable vehicle occupant restraint (12) includes a collision sensor (52) and an inflator assembly (20). The collision sensor (52) provides a collision signal indicating the occurrence of a vehicle collision. The inflator assembly (20) includes a first source (22) of inflation fluid which, when actuated, provides a first volume of inflation fluid. The inflator assembly (20) further includes a second source (24) of inflation fluid which, when actuated, provides a second volume of inflation fluid which differs from the first volume. A position sensor (70) provides a position signal indicating a position of an occupant of the vehicle. A controller (50) actuates the first and second sources (22, 24) of inflation fluid in any one of a plurality of differing modes of operation in response to the collision signal and the position signal.
Patent CA-2151358-C (CA)
Inventor: BISHOP GREGORY D
IPC: A61B17/068
Filed: 1995-06-08
Granted: 2005-08-23
Abstract: This invention relates generally to surgical instruments, and is especially suitable for incorporation in various instruments, particularly staplers, used in endoscopic procedures as well as in open surgery procedures. In a broad aspect of the invention, a control mechanism is provided for use in an articulating surgical instrument having a reciprocable articulating driver member engaged with a pivoting portion that is pivotable between first and second positions in response to linear movement of the articulation driver member. The control mechanism moves the articulation driver member between extended and retracted positions, with increased mechanical advantage at one of the extended and retracted positions. The control mechanism comprises a frame integral with the instrument containing the articulation driver member. A tooth is provided on the articulation driver member. A helical gear, having a decreasing pitch over at least a portion of its length, is engaged with the tooth and mounted for rotation in the frame.
Patent CA-2153829-C (CA)
Title: Workers' multi-functional harness
Inventor: O'ROURKE MICHAEL J
IPC: A62B35/00
Filed: 1995-07-13
Granted: 1999-01-26
Abstract: The invention comprises a multi-functional worker's harness assembly of the type comprising interacting shoulder and sub-pelvic harnesses. The shoulder harness includes a pair of separate, interacting first and second strap sections. Each strap section has a pair of ends secured to one part of a two-part releasable buckle. Each strap section, when in position on a wearer, extends from one end near the wearer's waist at the front, over the opposite shoulder of the wearer, down the wearer's back and around the wearer's side to the other end of each respective strap section at a point on the same side as it is positioned on the front. The strap sections, where they cross over each other at each of the front and back of the wearer, pass through and are held in overlapping fashion by a friction buckle. The sub-pelvic harness includes first and second strap sections, each having a pair of ends, each end secured to a second part of the two-part releasable buckle. Each of said strap sections of the sub-pelvic harness are of a length to permit at least partial wrapping about a different one of a worker' s legs and ends of the strap sections of the sub-pelvic harness being buckled to a corresponding buckle part of a corresponding one of said shoulder harness strap sections so that said two ends of said first shoulder strap section are connectable to said two ends of said first sub-pelvic strap section to form four releasable buckle connections, two of said four releasable buckle connections securing a worker's legs in the harness assembly. A further strap section is secured to and extends between intermediate portions of the sub-pelvic harness strap sections for resting behind the wearer's seat when in position. The other two of said four releasable buckle connections which are at the front when in position on the wearer, are provided with adjustment means allowing symmetrical adjustment of said strap sections of said sub-pelvic harness when in position on the wearer for one of elongating and shortening the harness assembly.
Patent CA-2156595-C (CA)
Inventor: EDWARDS DONALD WILLIAM
IPC: D02G3/36
Filed: 1994-02-16
Granted: 2003-04-08
Abstract: An elongated pile article having a support strand (32) for attachment to a plurality of yarn bundles (20), the yarn bundles including a dense portion with the filaments bonded to each other and bonded to the support strand, pile surface structure comprised of a plurality of elongated pile articles (45) placed one next to the other, and a method and apparatus for making the elongated pile article.
Patent CA-2157854-C (CA)
Title: Pressure reduction system testing
Inventor: ACKERLEY ROBERT
IPC: F16K37/00
Filed: 1995-09-08
Granted: 1999-04-06
Abstract: A fluid pressure reduction system includes two streams, each stream having pressure regulators 19 & 20, 32 & 33.  Isolation slam shuts 16 and 30 are provided in respective streams.  A sequence tester 40 allows a sequence of test operations to be effected such that the slam shuts can be opened and closed and the working pressure settings to the regulators can be changed to check system integrity.   These tests can be effected without interrupting the supply of gas through the system.  It is also possible to carry out the sequence  from another location.
Patent CA-2167945-C (CA)
Title: Method and system for automatic optimization of data throughput using variable packet length and code parameters
Inventor: PHILLIPS SHARON E T
IPC: H04L1/00
Filed: 1995-05-08
Granted: 2001-01-23
Abstract: A method and communication system provide for automatic optimization of data throughput by adjusting the encoder to use a long packet length and an increased channel coding efficiency during periods of low error counts and a short packet length and an increased channel coding redundancy during periods of high error counts.
Patent CA-2174618-C (CA)
Inventor: NIJENHUIS DERK
IPC: B60P1/32
Filed: 1994-10-20
Granted: 1999-06-15
Abstract: A transport vehicle for taking up and taking off in particular long containers (6) onto or from a loading platform (4) has road wheels (11, 12, 13) incorporated in a carrier (14). The carrier is movable, with respect to the loading platform (4), in a longitudinal direction between a rearmost position for driving and a foremost position in which the loading platform projects behind said carrier and can be tilted as far as the ground. In order to decrease the load on the hindmost road wheels (13) in intermediate positions of the container, and to correct positional deviation of the vehicle with respect to the container, there are disposed on said carrier (14), rollers or wheels which can be pushed down in order to partially unload the road wheels (13), and at least some of which have a horizontal axis which is slightly slanting with respect to the transverse direction of the vehicle. This position is therefore corrected by the vehicle being driven slightly forwards or backwards.
Patent CA-2181825-C (CA)
Inventor: BRONDER STEFAN RAYMOND
IPC: A23K1/175
Filed: 1995-02-07
Granted: 2005-07-05
Abstract: Composition renfermant de l'acide ortho-silicique sensiblement dépourvu de composés organiques de silicium, et stabilisé au moyen d'un agent stabilisant, de préférence un agent stabilisant azoté tel que la choline; procédé de préparation de cette composition, consistant (i) à former une solution renfermant un agent stabilisant, (ii) à dissoudre dans cette solution renfermant l'agent stabilisant un composé inorganique de silicium, et (iii) à hydrolyser le composé de silicium de manière à obtenir de l'acide ortho-silicique; et composition biologique ainsi obtenue.