baber/WOPTO huggingface dataset:
Patent CA-2104271-C (CA)
Inventor: WHITE CAROL E
IPC: A61G5/12
Filed: 1993-08-17
Granted: 1997-01-28
Abstract: There is proved a wheelchair back support adapted to specifically meet the requirements of a kyphotic patient.   The support comprises an outer shell formed of a firm, pliable fabric.          An inner foam padding is inserted within the outer shell. Two, longitudinally  extending,   resilient  spaced-apart  ribs  are positioned at predetermined distances within the outer shell. The back is top stitched along its outer perimeter at a predetermined distance from the edge thereof to thereby achieve the specified shape.
Patent CA-2104825-C (CA)
Title: Gasoline containing polyalphaolefin and polyoxyalkylene additives
Inventor: GRAHAM JOSEPH
IPC: C10L1/30
Filed: 1993-08-25
Granted: 2004-01-06
Abstract: The invention provides a gasoline composition comprising a major amount of a gasoline suitable for use in spark-ignition engines, a minor amount of a polyalphaolefin having a viscosity at 100°C in the range 2 × 10 -6 to 2 × 10 -5 m2/s (2 to 20 centistokes), being a hydrogenated oligomer containing 18 to 80 carbon atoms derived from at least one alphaolefinic monomer containing from 8 to 16 carbon atoms, and a minor amount of a polyoxyalkylene compound selected from glycols, mono- and diethers thereof, having number average molecular weight (M n) in the range 400 to 3000, the weight ratio polyalphaolefin: polyoxyalkylene compound being in the range 1:10 to 10:1; a concentrate for the preparation of such gasoline composition and a method of operating a spark-ignition engine using such gasoline composition.
Patent CA-2105259-C (CA)
Title: Electrophotographic apparatus having developing device with seals for preventing toner leakage
Inventor: ISHIKAWA MASAAKI
IPC: G03G15/08
Filed: 1993-08-31
Granted: 2000-01-04
Abstract: A developing device used in an electrophotographic apparatus has seal members fixedly disposed between both end portions of a developing roller and those portions of inner walls of a device casing which correspond to both end portions of the developing roller. The seal members are made of a material which can be charged by friction with the developing roller to have the same polarity as charged toner. The toner is blocked by the seal members and prevented from entering end portions of the developing roller.
Patent CA-2105375-C (CA)
Title: Adaptive phase control for a power amplifier predistorter
Inventor: MCNICOL JOHN DUNCAN
IPC: H03C3/08
Filed: 1992-04-22
Granted: 1996-01-16
Abstract: In a QAM microwave radio communications system an IF (intermediate frequency) input signal (10) is amplified (12) and predistorted (14), and the amplified IF signal is mixed (20) with a local oscillator signal (18) to produce an RF (radio frequency) signal which is amplified in a power amplifier (22) for transmission, the predistortion compensating for non-linearity of the pow-er amplifier. Adaptive phase control of the predistorter is provided by mixing (30) the local oscillator signal with part of the RF signal (24) to produce an IF output signals (32) representing the output of the power amplifier, detecting (45) phase differences between the IF input and IF output signals to produce a phase difference signal, selectively inverting (56) the phase difference signal in dependence upon whether or not an IF signal amplitude exceeds a comparison level, and intergrating (56) the resulting signal to produce a phase control signal for the predistorter.
Patent CA-2105836-C (CA)
Title: Bioerodible contraceptive suppository
Inventor: BRITTON PETER
IPC: A61K47/38
Filed: 1993-09-09
Granted: 2004-03-02
Abstract: The invention relates to an intravaginally-dissolvable contraceptive suppository, a method of using said suppository, and an improved method of manufacturing said birth control device. The suppositories of the invention, which comprise a lyophilised foam and a contraceptives have a dissolution time of at least about 2 hours, and up to about 24 hours, and provide superior protection against pregnancy.
Patent CA-2105905-C (CA)
Title: Light weight cementitious formulations
Inventor: CROCKER DAVID A
IPC: C04B7/00
Filed: 1993-09-10
Granted: 2001-07-31
Abstract: A light weight cementitious composition comprising a dry mixture of a hydraulic cement component and an aggregate component and which, upon mixing with water, produces a paste which is easily workable and sets to produce a light weight concrete mass. The hydraulic cement component includes at least two and usually three cement constituents. One constituent is a Type S, Type M or Type N masonry cement. A second constituent is a pozzolanic cement or an expansive cement, and a third constituent is a Type I  cement, Type II cement or a Type III portland cement. In this mixture the first and second cement constituents are each present in an amount less than the third cement constituent. The second aggregate component in the dry mixture comprises a light weight aggregate present in an amount to provide a bulk density for the dry mixture of no more than 100 pounds per cubic foot and more specifically, a bulls density of about 85 pounds per cubic foot, or less. The cementitious composition forms a readily workable paste which can be characterized as having a slump loss at one half hour of not more than 2 inches after mixing with water in an amount of about 21-23 wt. % of the dry mixture. The cementitious composition is conveniently packaged in a unit weighing no more than about 50 pounds per container.
Patent CA-2107137-C (CA)
Inventor: BISWAS CHANDI P
IPC: F16D69/00
Filed: 1993-09-28
Granted: 1997-12-30
Abstract: A clutch and disc brake friction assembly is provided for use on medium and heavy duty vehicles and includes a metallic shoe having an exposed backing surface provided with a plurality of relatively spaced protuberances projecting therefrom.  A sheet metal attachment lamina overlies the backing surface and is provided with a plurality of holes through which the protuberances extend.  Subsequent to the distal ends of the protuberance having passed through the holes, they are enlarged thereby affixing the attachment lamina to the backing surface.  The attachment lamina has a plurality of openings relatively arranged to form a grid-like configuration.  The openings are separated from one another by narrow elongated segments each having a V cross-sectional configuration with the sides thereof diverging from the shoe backing surface.  A high temperature adhesive lamina overlies the backing surface and the divergent sides of the narrow elongated segments of the attachment lamina.  A friction lamina overlies the adhesive lamina and the attachment lamina whereby the divergent sides of the elongated segments and the adhesive lamina become embedded in the friction lamina.
Patent CA-2109162-C (CA)
Inventor: FINKL CHARLES W
IPC: C22C38/22
Filed: 1993-10-25
Granted: 1998-09-15
Abstract: A 12 percent stainless-type steel having high polishability characterized by high carbon, moderate Mo and a combination of V and Nb not to exceed about .1 percent, and a method of production which includes forming a vacuum arc remelt electrode by means of vacuum arc degassing treatment and protective pouring.
Patent CA-2110588-C (CA)
Inventor: ERICKSON ROBERT A
IPC: F16B2/18
Filed: 1992-05-18
Granted: 1995-08-22
Abstract: The present invention relates to compressible screw-type locking mechanism including an oversized locking screw (12) and a tool for compressing and rotatively driving the oversized locking screw (12) is a head portion (12a) and extending downwardly from the head portion is a threaded shaft (12G). At least one longitudinal slot (18) extends through the head and at least partially through the shaft to form a locking screw with plural resilient segments. The locking screw assumes a normal expanded state with its threaded pitch diameter being oversized with respect to its companion bore. The locking screw is compressed by engaging the head (12a) thereof with the tool (16). In one embodiment, the compression of the locking screw is achieved through a torquing ac-tion. In a second embodiment, the compression is achieved by the axial movement of the tool. In either case, by relieving the ap-plied torque or removing the tool. In either case, by relieving the applied torque or removing the tool from the locking screw head results in the locking screw expanding within bore and assuming an interference or locked fit within the bore.
Patent CA-2110696-C (CA)
Title: Method and apparatus for making grids from fibers
IPC: B27N3/08
Filed: 1992-06-05
Granted: 1998-06-23
Abstract: Method and apparatus to form grids of open cells from fibers (22), especially wo od fibers and fibers from waste paper and mixed waste materials. The invention utilizes a screen (18) carrying a plurality of elastomeric pads (20) of predetermined sizes arranged thereon in predetermined spaced relation to each other. The fiber is de posited between the pads but not above the pads. The deposited fibers and the pads are compressed normal to the screen, whic caus es the fibers in the spaces between the pads to be consolidated both normal and parallel to the screen, resulting in an open gri d having cells of the shape of the pads. Numerous variations are provided, including several continuous production embodiments. Th e invention uses state of the art technology for virtually all aspects.
Patent CA-2122303-C (CA)
Title: Multi-arm block copolymer, and pressure sensitive adhesive and tape employing a multi-arm elastomeric block copolymer
Inventor: MA JINGJING
IPC: C09J7/10
Filed: 1994-04-27
Granted: 2005-03-29
Abstract: The present invention provides a novel multi-arm block copolymer, a novel pressure-sensitive adhesive made from a multi-arm elastomeric block copolymer, and a novel tape made therefrom. The multi-arm block copolymer has the general structure (A-B)m Y(C-D)n wherein A, B, C and D are polymer segments; Y is a residue of a multifunctional coupling agent; and m and n are the number of arms, where m and n are greater than 0 and the sum of m plus n is at least 3. A comprises a random copolymer of a monoalkenylarene and a conjugated diene; B and C comprise either a homopolymer of a conjugated diene or a polymer of two or more conjugated dienes; D comprises either a homopolymer of a monoalkenylarene or a copolymer of a monoalkenylarene and a conjugated diene wherein the Tg of D is greater than the Tg of A; and the weight percent of monoalkenylarene in the block copolymer is 40% or less. The pressure-sensitive adhesive of the invention comprises 100 parts by weight of either the previously described multi-arm block copolymer or a multi-arm block copolymer having the structure (A'-B)m Y, about 20 to about 300 parts by weight of a tackifying resin, 0 to about 50 parts by weight of a crosslinking agent, and 0 to about 200 parts by weight of a plasticizer.
Patent CA-2123450-C (CA)
Inventor: IMAINO WAYNE I
IPC: G11B7/24
Filed: 1994-05-12
Granted: 1998-09-15
Abstract: An optical data storage system uses an optical medium made of a stack of spaced-apart optical disks.  Each disk in the stack is made of light-transmissive material, such as polycarbonate when the system is a CD-ROM system, and has a partially light-transmissive data layer on at least one of its faces.  A focusing lens in the system focuses light to the data layers along optical paths, with each data layer corresponding to a unique optical path length.  The light is focused to each data layer by reflection off adjacent data layers such that the total substrate thickness through which the light passes is the same for each optical path.  In this manner, the fixed spherical aberration correction provided by the focusing lens  is  adequate  and  variable  aberration  correction  is  not necessary.   By appropriate selection of reflectivities of the multiple data layers in the disk stack, it is possible to design the system so that the effective reflected light intensity from each  data  layer  is the  same,  and  that  adjustable  signal amplification is not necessary.
Patent CA-2124238-C (CA)
Inventor: STOKES TY JACKSON
IPC: D04H1/54
Filed: 1994-05-25
Granted: 2004-03-16
Abstract: The present invention provides a point bonded polyolefin nonwoven fabric fabricated from conjugate fibers containing a polyolefin and a polyamide. Advantageously, the nonwoven fabric can be point bonded at a temperature significantly below conventional polyolefin nonwoven web bonding temperatures and in a wide range of different bonding temperatures without significantly sacrificing its tensile strength. Additionally provided is a process for producing the point bonded nonwoven fabric.
Patent CA-2124426-C (CA)
Title: Dental composition, prostheses, and method for making dental prostheses
Inventor: TATEOSIAN LOUIS H
IPC: A61K6/893
Filed: 1994-05-26
Granted: 2003-04-08
Abstract: A dental prosthesis includes polymeric material formed by heat curing a polymerizable composition having at least 5 percent by weight of at least one polymerizable Monomer having at least one acrylic moiety and a gram molecular weight of at least 200. The polymeric material is preferably formed by heat curing and has an unnotched izod impact strength of at least 2.5 and more preferably at least 3.0 ft.cndot. lb/in as measured by a Modified ASTM D256, and a flexural fatigue life of at least 20,000 flexes to failure at 0.1 inch deflection. Preferably the polymerizable monomer has a vapor pressure less than 5 mm Hg at 23°C. A method of making a denture is provided which includes molding and polymerizing the polymerizable composition to form a denture. Preferably the polymerizable composition includes polymerizable compounds made up of at least 5 percent by weight of the acrylic Monomer having a gram molecular weight of at least 300 and less than 5 percent by weight of Volatile compounds and less than 2 percent by weight of Low Molecular weight acrylic compounds having a gram molecular weight of less than 200.
Patent CA-2128050-C (CA)
Title: Xylanase derived from a bacillus species, expression vectors for such xylanase and other proteins, host organisms therefor and use thereof
Inventor: DE BUYL ERIC
IPC: C12N15/09
Filed: 1994-07-14
Granted: 2006-12-19
Abstract: A purified xylanase derived from B. Pumilus PRL B12 is disclosed. This xylanase is efficient for use in the biobleaching of wood pulp, permitting a strong reduction in the quantity of chlorine used and AOX compounds produced in classical and ECF wood pulp bleaching sequences as well as the quantity of ozone used in TCF sequences. The gene coding for the xylanase was isolated and purified and used to construct an expression vector therefor. A recombinant host strain of B. licheniformis is also disclosed which is efficient for expressing heterologous enzymes, including the xylanase when transformed by the expression vector.
Patent CA-2130058-C (CA)
Inventor: ROSE BERNARD R
IPC: C23C10/58
Filed: 1994-08-12
Granted: 2005-03-08
Abstract: Process for producing novel coated nickel and/or cobalt superalloy bodies having increased resistance to oxidation, corrosion and thermal fatigue at high temperatures. The process comprises applying a thin layer of a platinum-group metal, siliciding and heating to an elevated temperature to diffuse and integrate the silicided platinum-group metal into the surface of the superalloy body. Then the superalloy body is exposed to a diffusion powder composition containing sources of aluminum or aluminum/chromium metals and heated in a hydrogen or inert gas atmosphere to an elevated temperature to codeposit and diffuse aluminum or aluminum and chromium into the silicided platinum-group metal-treated surface.      Finally, the superalloy body is heated to its solvus temperature to form a ductile surface having an outer zone comprising a platinum-group metal aluminide, optionally ductilized by the solutioning therein of beta chromium. An inner stabilizing zone of silicon-rich phases is formed during said diffusion processes.
Patent CA-2130674-C (CA)
Title: Process for producing carbon blacks and new carbon blacks
Inventor: BRANAN JOHN M JR
IPC: C08L101/00
Filed: 1993-03-02
Granted: 2004-04-27
Abstract: A process for producing carbon blacks comprised of mixing an oxidant, primary fuel, and carbon black feedstock to form carbon black particles and aggregates, passing the mixture through a reactor, cooling, separating, and recovering the carbon black product. The improvement comprises the addition of a secondary oxidant-containing stream to the reactor such that the secondary oxidant stream does not interfere with the formation of the carbon black particles and aggregates in the reactor. Also disclosed are new carbon black products defined by the following parameters: 35 m-2/g <=1 2 No. <=65 m2/g; 30m2/g<=CTAB <=552m/g; 1.12  1 2 No./CTAB ratio; Tint <= 65%; 75 cc/100 g <= CDBP <= 95 cc/100 g. Also disclosed are rubber and/or plastic compositions containing these new carbon blacks.
Patent CA-2141842-C (CA)
Inventor: MARSH HENRY C JR
IPC: C12N15/12
Filed: 1993-08-06
Granted: 2008-07-29
Abstract: The present invention relates to novel glycoforms and preparations of the soluble complement receptor type 1(sCRI), and their uses in the therapy of comple-ment mediated diseases and disorders involving inflam-mation and inappropriate complement activation and in thrombotic or shock state conditions. The invention provides novel glycoforms and methods for producing, detecting, enriching and purifying such glycoforms. The invention further provides methods of specifically prod-ucing a glycoform by recombinant or chemical means. Preferred embodiments of the invention include sialy-lated glycoforms and glycoforms with a pI <= 5.1 deter-mined by chromatofocusing or with a sialic acid to mannose molar ratio of >= 0.25. The glycoforms may be formulated alone in therapeutic compositions or in combination with thrombolytic agents.
Patent CA-2141895-C (CA)
Title: Nesting utility and or survival chamber
Inventor: VIIRA ELMET
IPC: B63C9/03
Filed: 1995-02-06
Granted: 2007-03-06
Abstract: A DISLODGEABLE UTILITY AND/OR SAFETY COMPARTMENT CHAMBER DESIGNED TO PERFORM A USEFUL FUNCTION DURING DAILY OPERATIONS AND TO PROVIDE A MEASURE OF ESCAPE AND/OR PROTECTION DURING A CATASTROPHE OR ACCIDENT.AN INNER CHAMBER ACCESIBLE BY A MODIFIABLE RECESSED OPENING DEPENDENT ON UTILITY CONCERNS.THE INNER CHAMBER ROTATES WITHIN AN OUTER SHELL BY BEARING AND OR OTHER MEANS GIVING OCCUPANTS OR CARGO WITHIN THE INNER CHAMBER A MEASURE OF STABILITY AND ISOLATION. THE PURPOSE OF THE UNIT BEING TO FACILITATE RAPID CONVEYANCE OF ITS PLACEMENT/REMOVAL ON BOARD SHIP/BARGE, RAIL, AIRCRAFT OR OTHER TRANSPORT VEHICLE AND TO SAVE LIFE IN THE ADVENT OF A CATASTROPHE.FURTHEMORE THE CONCEPT ADAPTED IN SUCH A WAY THAT IT CAN BE CONSTRUCTED AS A RESTAURANT,MEDICAL CENTRE,COMPARTMENTALIZING SUPPLY CHAMBER OR TO~~ CUSTOMIZE/COMPARTMENTALIZE/LOCALIZE ANY UTILITY OR FUNCTION REQUIRED.THUS ALSO BEING ABLE TO STAND ALONE IN APPLICATION.
Patent CA-2151977-C (CA)
Title: Compositions a base de polymere ethylenique
Inventor: HESS KEVIN J
IPC: C08F255/02
Filed: 1995-06-16
Granted: 1999-05-18
Abstract: L'invention concerne une composition polymérique d'éthylène, renfermant : a) un polymère éthylénique; b) un réticulant; c) un co-réticulant cyclique, insaturé, non aromatique.
Patent CA-2153165-C (CA)
Title: Recombinant anti-hiv antibody and process for preparing the same
Inventor: MAEDA HIROAKI
IPC: C12N15/13
Filed: 1993-01-14
Granted: 2003-05-06
Abstract: The present invention relates to a gene fragment coding for a variable region of an antibody having a neutral-izing activity against human immunodeficiency virus (HIV) and a process for preparing the same. A mouse-human chimeric antibody and a mouse-human reshaped antibody having a neutralizing activity against HIV can be prepared by obtaining a specific nucleotide sequence of a gene fragment coding for a variable region of H chain and L chain of an antibody having a neutralizing activity against HIV, and then artificially fusing DNAs synthesized based on these nucleotide sequences with a gene coding for a human immunoglobulin. The novel recombinant anti-HIV antibody of the present invention is useful for treatment and prevention of AIDS.
Patent CA-2153763-C (CA)
Inventor: LEHRER ROBERT
IPC: B01D39/14
Filed: 1994-02-16
Granted: 2000-08-22
Abstract: A filter (10) for fluids includes a pair of layers (12, 14) or multiple layers or pairs of materials joined together to form a laminate having a fluid contacting surface (16). A plurality of spaced pockets (18) is formed between the layers of material in the contacting surface. The layers of material are fluid permeable at the pockets whereby fluid may flow through the laminate at the pockets (18). The fluid contacting surface is fluid impermeable except for the pocket to require the fluid passing through the laminate to be confined to flowing through the pockets. Filter members (20) are in the pockets for removing any contaminants from the fluid.
Patent CA-2154837-C (CA)
Title: Variable printing and selective binding of booklets
Inventor: CLARK JAY V
IPC: B42C9/00
Filed: 1995-07-27
Granted: 2000-11-28
Abstract: An apparatus and method for variably printing and selectively binding sheets. A printer is used to print variable sets of information onto a plurality of sheets, sequence the printed sheets, and assemble the printed sheets into a stack. Particular sheets within the stack of the printed sheets are selectively bound together. The binding is accomplished using a toner or other adhesive selectively applied to the sheets. This allows for the printing and binding of different booklets from an assembled stack of sheets, for example, without having to remove each booklet from the stack and separately bind it.
Patent CA-2156539-C (CA)
Inventor: CRUMP DWAYNE THOMAS
IPC: G06F1/32
Filed: 1995-08-18
Granted: 2000-01-11
Abstract: A computer system having a CPU, a power management processor, a switch, a modem, a timer, an override circuit, a glitch circuit, and a power supply in circuit communication.  The power supply has several power supply states, which are controlled by the power management processor responsive to the CPU, the switch, the modem, the timer, the glitch circuit, the override circuit, and the power management processor itself.
Patent CA-2159542-C (CA)
Inventor: STEVENS SCOTT A
IPC: B42D15/08
Filed: 1995-09-29
Granted: 2006-01-24
Abstract: A method and apparatus for producing a folded document, such as a mailer, including a camera and microprocessor for viewing printed information on a printed sheet and storing the information in a memory.      The printed sheet is then folded to enclose the printed information within the folded sheet. A printer is connected to the camera and microprocessor to retrieve the stored information and print the information on the folded sheet.
Patent CA-2164150-C (CA)
Title: Method and apparatus for cooling and producing bulk material
Inventor: DOUMET JOSEPH E
IPC: F27B7/00
Filed: 1995-11-30
Granted: 2001-02-20
Abstract: The invention relates to a method and to apparatus for produ-cing fired bulk material, particularly cement clinker, wherein the bulk material is first of all fired and then cooled.  In this case the cooling of the hot bulk material takes place by gasification of a fuel, particularly coal, with steam, the reaction enthalpy necessary for the gasification reaction being extracted from the hot bulk material.  In this gasifi-cation a fuel gas is also produced which is used for firing the bulk material.
Patent CA-2166204-C (CA)
Inventor: POSANSKI ULRICH
IPC: A61K38/13
Filed: 1994-07-08
Granted: 2009-04-14
Abstract: L'invention concerne des préparations pharmaceutiques pour principes actifs difficilement solubles, ainsi que des procédés permettant de produire ces préparations. On utilise comme agent de solubilisation des esters d'acide gras de polyglycérine ou des esters d'acide gras de sorbitanne, en combinaison avec des additifs lipophiles et des tensioactifs non ioniques.