baber/WOPTO huggingface dataset:
Patent CA-2003811-C (CA)
Inventor: HINTERMAYER JOCHEN
IPC: C04B35/58
Filed: 1989-11-24
Granted: 1997-01-14
Abstract: A  process  for  the production of silicon nitride by the reaction of silicon and nitrogen, wherein, in the reaction step, silicon powder is reacted with nitrogen with continuous rolling round at a temperature of from 1000 to 1800°C. and at a pressure of from 1.01 to 1.8 bar up to a nitrogen content of 1 to 39.5% by weight, and a silicon nitride which is produced by such process which is of porous form and has the following properties: a)  grain size of 0.1 to 20 mm., b)  nitrogen content of 1 to 39.5% by weight, c)  oxygen content of <1%, d)  ratio of .alpha.:.beta.-phase of 1:9 to 9:1.
Patent CA-2007692-C (CA)
Title: Active fiber for optical signal transmission
Inventor: GARMAN JONATHAN D
IPC: H04B10/2581
Filed: 1990-01-12
Granted: 1997-11-18
Abstract: An improved optical fiber is disclosed having particular application for use in a fiber optic communication system. The optical fiber includes an optically transparent core which is doped with a lasing material of the same type used in the diode laser transmitter of the particular communication system.The lasing dopant has the greatest density in the center of the core, and is diffused outward into an optically transparent cladding surrounding the core which has an index of refraction lower than an index of refraction of the core. The optical fiber is "pumped" such that the lasing dopant within the fiber lasesat a desired wavelength and provides gain for the original optical signal provided by the diode laser.  The lasing of the dopant material within the fiberresults in continuous optical gain along the length of the fiber and avoids the need for repeaters in the fiber optic communication system. Various pumping embodiments are disclosed including coating the outside of the cladding with a light emitting material, such as radium fluorescent paint, and providing a reflector on the outer surface of the fiber to reflect light generated by the radium through the cladding and into the core to achieve lasing. An alternate embodiment is disclosed in which an electroluminescent material coats the outer surface of the cladding, such that upon the application of voltage along the length of the fiber, the electroluminescent material generates photon energyand pumps the dopant within the core to achieve lasing.
Patent CA-2009172-C (CA)
Title: A recording apparatus
Inventor: MORO SHUUJI
IPC: H04N9/83
Filed: 1990-02-02
Granted: 1999-10-12
Abstract: A tape recording apparatus is capable of operation in either a normal recording mode or a high band recording mode. Detecting holes to indicate whether a tape cassette loaded into the recording apparatus is designed for the normal recording mode or the high band recording mode are formed in the tape cassette. The kind of cassette is detected from the detecting holes, and the high band recording mode or the normal recording mode is automatically set in accordance with the kind of tape cassette detected. The automatic setting can be selectively cancelled, however, in which case the recording can be executed in the normal recording mode even if a tape cassette designed for the high band recording mode has been loaded into the recording apparatus.
Patent CA-2014993-C (CA)
Title: Dispensing valve assembly and system
Inventor: SONNTAG DONALD W
IPC: G01F11/02
Filed: 1990-04-20
Granted: 1995-04-11
Abstract: A dispensing valve assembly and system for viscous materials includes a dispensing valve including a valve casing and a valve element slideably mounted therein. The casing has an interior chamber with a dispensing port and a valve passageway extends longitudinally from a first opening at the chamber to a second opening at the casing exterior on inlet opening extends through a side of the casing to intersect the valve passageway and to connect to a source of material to be dispensed. First and second seals are on either side of the inlet port in the valve passageway. The valve element includes a drive shaft portion, an elongated piston head portion and a waisted portion interconnecting the drive shaft and piston head. The waisted portion has a longitudinal length greater than the longitudinal distance between the inlet port and the first seal proximate the first opening. The valve element reciprocates over a cycle whereby as the valve element advances from a fully closed portion toward the fully open position, the piston head moves into the chamber and the waisted portion interrupts the first seal allowing material to flow into the chamber and out of the dispensing port. As the valve element advances from the fully open position toward the fully closed position, the seal is again established to shut off material flow. Continued advancement retracts the piston head further from the chamber to create a negative pressure that draws back material from the dispensing port to cause a clean cut off of flow.   Preferably a metering port and a metering cylinder are employed. The metering port extends through the casing and is located between the inlet port and the first opening. A third seal is provided in the valve passageway, also between the inlet port and the first opening. During advancement of the valve element, the waisted portion first allows material flow from the source into the metering cylinder by breaking the second seal after which the source is sealed off and the metering cylinder is opened to the chamber by continued advancement of the waisted portion which breaks the first seal.
Patent CA-2022592-C (CA)
Title: Method of treating subterranean formations
Inventor: WILLIAMS DENNIS A
IPC: C09K8/68
Filed: 1990-08-02
Granted: 1995-03-28
Abstract: A  method  of  fracturing  a  subterranean  formation involving the use of crosslinked gels to form a fracture and deposit particulate proppant therein followed by the introduction of dilute aqueous solutions of chlorine dioxide in the propped fracture to degrade the gel.
Patent CA-2025350-C (CA)
Title: Process for production of c-terminal .alpha.-amidated peptide
Inventor: MAGOTA KOJI
IPC: C12N1/21
Filed: 1990-01-17
Granted: 2000-08-01
Abstract: Processes for the production of a peptide of the formula (III): R-X-NH2 , wherein X-NH2 represents a C-terminal .alpha.-amidated amino acid and R represents a remaining portion of the peptide, starting from any step in a series of the following steps: (1) obtaining a fused protein of the formula (0): P-R-X-Gly-B, wherein P represents a partner protein of the fused protein, X represents any amino acid residue, Gly represents a glycine residue, B represents a C-terminal basic amino acid or a basic oligopeptide, and R represents a remaining portion of the peptide, by a gene recombination method; (2) recovering the fused protein; (3) cleaving the fused protein to form a partner protein (P) and a peptide of the formula (I): R-X-Gly-B; (4) separating the peptide (I) from the partner protein (P) on the basis of the difference of the isoelectric points thereof; (5) hydrolyzing the peptide (I) with carboxypeptidase B to form an intermediate peptide of the formula (II) R-X-Gly; and (6) treating the peptide (II) with a C-terminal .alpha.-amidating enzyme.
Patent CA-2028561-C (CA)
Title: Method and formulation employing type ii endoglycosidase
Inventor: CARPENTER RICHARD SHEPARD
IPC: A61Q11/00
Filed: 1990-10-25
Granted: 1997-05-20
Abstract: Methods and formulations for removing glycoside-containing substances from surfaces by treatment with Type II endoglycosidase alone or in combination with other enzymes and/or detergents.
Patent CA-2031799-C (CA)
Title: Shock absorbing bicycle seat mounting post
Inventor: JOHNSEN THORE
IPC: B62J1/06
Filed: 1990-12-07
Granted: 1993-12-14
Abstract: SHOCK ABSORBING BICYCLE SEAT MOUNTING POST               ABSTRACT OF THE DISCLOSURE           A shock absorbing bicycle seat mounting post is provided and is mounted upon a hollow tubular socket member having a binder clamp of a frame of a bicycle.   The shock absorber will effectively absorb shocks which are carried through the frame when the wheels encounter obstacles and holes when traveling along the ground.  In a modification the shock absorbing bicycle seat mounting post will also allow the bicycle seat assembly to rotate thereabout for additional adjustment.
Patent CA-2033249-C (CA)
Inventor: ZEPPEZAUER MICHAEL
IPC: A61K33/243
Filed: 1990-12-27
Granted: 1997-01-21
Abstract: According to this invention the combination of active substances for use in therapeutic procedures consists of at least one cytostatic compound, e.g. vincristine, methotrexate, cisplatin as the first agent and at least one histone and/or one active histone fragment with cytostatic or cytotoxic activity as the second agent.            Both active agents act synergistically at the site of the pathogenic process.
Patent CA-2034239-C (CA)
Inventor: MCGAFFIGAN THOMAS H
IPC: H05B6/10
Filed: 1991-01-15
Granted: 2000-09-19
Abstract: This invention provides a system for providing heating in an alternating magnetic field using lossy heat producing magnetic particles. This invention discloses a system comprising a combination of particles wherein the first particles are lossy heat producing particles, which have a preselected Curie temperature to provide self-regulating heating in the alternating magnetic field, and the second particles are nonlossy particles which have high permeability which are not heat producing particles but which maintain the coupling of the magnetic circuit and maintain the desired magnetic field focus and intensity through the area in which the first lossy heat producing particles are positioned. Thus, in this invention, when the first lossy heating particles approach or are at their Curie temperature and have declining permeability and would otherwise lose the desired coupling with the magnetic circuit, the second nonlossy high permeability particles maintain the coupling of the magnetic circuit as well as the desired intensity of the magnetic field through the first lossy heating particles to provide the desired field strength throughout the heating period. This invention prevents premature loss of heating due to loss of coupling of the magnetic circuit with the lossy heating particles and provide other advantages. This invention also provides magnetic particles coated with an electrically resistive coating, which coated particles exhibit useful properties in the above particle systems.
Patent CA-2046241-C (CA)
Inventor: MARBOT ROLAND
IPC: H04L13/10
Filed: 1991-07-04
Granted: 1995-09-26
Abstract: Le dispositif de *sérialisation 15 de mots de N bits SYNC, OP, D0-D7 produit N signaux d'horloge CL0-CL9 de période T retardés successivement de T/N pour commander des registres respectifs 36, 38, 39 pour la sortie successive des bits de chaque mot. Un additionneur 40 réunit ces bits dans un signal de transmission de données en série TS. La désérialisation s'applique notamment aux systèmes de transmission en réseau, et en particulier aux systèmes informatiques.
Patent CA-2049612-C (CA)
Title: Automatic conveyor transition sampler
Inventor: MONTGOMERY JAMES R
IPC: G01N1/18
Filed: 1991-08-21
Granted: 1995-01-03
Abstract: A sampler is disclosed for a flow of particulate material on a conveyor system which has at least one transfer point from a first conveyor to a second conveyor.  The sampler has a sample bucket with a hinged bottom and a traveling rig which mounts the sample bucket to a fixed linear track spaced from the second conveyor. An electric motor drives a gear which engages with the track to move the traveling rig and bucket along the track from a first position over a sample collector to a second position aligned with the material flow from the first conveyor.  The collector has two conduits.  The first conduit leads to a sample repository and the second conduit leads to a conveyor for returning sampled material to the material flow.  An actuator-linkage assembly acts to move the sample bucket which is aligned with the material flow from a raised position where the bucket does not intercept the flow to a lowered position where substantially all the flow of material from the first conveyor is intercepted by the bucket.  The assembly acts to retract the bucket from the lower, flow intercepting, position after a selected time.  The rig then returns the bucket with the intercepted material to the first position over the splitter.  An actuator on the bucket works a hinged bottom door to empty the sampled material from the bucket into the splitter, to permit a proportional fraction of the sampled material to be collected.
Patent CA-2054917-C (CA)
Inventor: SERVAIS ALBERT
IPC: G02B1/14
Filed: 1991-11-04
Granted: 2000-02-22
Abstract: Un objet réfléchissant tel qu'un miroir ou un panneau transparent protégeant du rayonnement comprend un revêtement métallique réfléchissant déposé sur une feuille de verre. Le revêtement métallique comprend une couche réfléchissante d'argent et a été traité avec une solution contenant des ions d'au moins une espèce choisie parmi: Cr(III), V(II ou III), Ti(II ou III), Fe(II), In(I ou II), Cu(I) et AI(III). Un tel traitement offre une protection du revêtement réfléchissant contre la corrosion.
Patent CA-2064697-C (CA)
Title: A process for the production, drying and germination of conifer somatic embryos
Inventor: ROBERTS DANE RICHARD
IPC: A01H4/00
Filed: 1990-07-27
Granted: 1996-04-23
Abstract: A process to assist in germination of spruce somatic embryos. The embryos are partially dried at humidities of less than about 99.9 %, preferably in the range of about 85 to about 99 %. A process that differentiates somatic embryos of conifer com-prises contacting embryogenic calli with a medium containing abscisic acid. A process for determining the quality of a plant to embryo is also described. That process comprises identifying the storage protein content of the embryo and comparing that con-tent with the storage protein content of mature embryos of the same species.
Patent CA-2070111-C (CA)
Inventor: BRAUNBERGER BENJAMIN A
IPC: A01D34/14
Filed: 1992-06-01
Granted: 1994-08-23
Abstract: A splice assembly joins two short or broken sickle bars (15, 16) with their attached cutter sections (10).  The sickle bars and cutter sections have a series of aligned holes. Top and bottom splice plates (25, 26) sandwich the bars and cutter sections, and have a series of openings that register with the holes in the bars and cutter sections.  The outer surface of each plate (25, 26) is countersunk (28, 29) at the openings, and a plurality of bolts(30) with conical heads (31) are received in the countersunk openings in one plate and a plurality of nuts (21) with conical ends are threaded onto the bolts and received in the countersunk openings of the other plate.
Patent CA-2073419-C (CA)
Title: A method of treating bctmp/ctmp wastewater
Inventor: CHUNG DANIEL K
IPC: D21C11/00
Filed: 1992-07-09
Granted: 2002-11-19
Abstract: A method of treating BCTMP/CTMP wastewater to improve retention and purification of cellulose fiber suspension and clarification of the BCTMP/CTMP wastewater which comprises the addition of a cationic, water soluble coagulant having a molecular weight less than 15,000,000 in an amount of about 1 to about 300 ppm; and a high molecular weight flocculant selected from the group consisting of: nonionic polymers having a molecular weight in the range between about 500,000 to about 30,000,000, low charge cationic polymers having a molecular weight in the range between about 5,000,000 to about 30,000,000, and low charge anionic polymers having a molecular weight in the range between about 5,000,000 to about 30,000,000, in an amount of about 0.1 to about 100 ppm.
Patent CA-2076971-C (CA)
Title: Sectionalizer with externally mounted electronic controller
Inventor: POPECK CHARLES A
IPC: H01H71/12
Filed: 1990-03-01
Granted: 1999-01-26
Abstract: An electronic sectionalizer includes mounting structure (12) including first and second electrical contacts (18, 22) spaced from one another and electrically conductive structure (26) having an external surface and provided with first and second electrical terminals adapted to engage the first and second electrical contacts of the mounting structure in a closed condition of the sectionalizer. The sectionalizer provides for the release of the electrically conductive structure (26) from engagement with at least the first electrical contact (18) to permit the electrically conductive structure (26) to move from the closed position to an open position, and an actuator (104) is provided for actuating the release. A detector (40) is provided to detect a predetermined condition in the sectionalizer and the actuator (104) is controlled in response to the detection by an electronic control circuit (47) mounted to the external surface of the conductor (26).
Patent CA-2078976-C (CA)
Title: Electrically chargeable garment
Inventor: CLARK BRIAN L
IPC: A01K15/02
Filed: 1992-09-23
Granted: 1994-06-21
Abstract: ABSTRACT The  present  invention  provides  an  electrically chargeable garment having a pair of leggings having an outer layer with a pair of closely spaced electrical terminals of opposite polarity disposed on the outer surface of the outer layer.   There is also provided means for attaching the leggings to a wearer and means for adjustably supporting the leggings from the wearer.
Patent CA-2081361-C (CA)
Title: Recording apparatus
Inventor: HASHIMOTO KENICHIRO
IPC: B41J3/36
Filed: 1992-10-23
Granted: 1999-09-07
Abstract: According to the present invention, there is provided a recording apparatus comprising a first housing having a control unit for controlling a recording mechanism for recording onto a recording medium and a feed mechanism for feeding said recording medium, a second housing connected movably to said first housing in recording, and having an attaching portion for attaching said recording mechanism thereto and said feed mechanism, and an operation portion, which is unnecessary to operate at the non-service time of the recording apparatus, and covered with said second housing at said non-service time, but is opened by the rotation of said second housing in recording, whereby the recording apparatus is placed in a thin form convenient for the transportation or storage at the non-service time or in a suitable form for the conveyance of the recording medium at the service time, and said operation unit unnecessary at the non-service time can be protected.
Patent CA-2085849-C (CA)
Inventor: SEIKE TAKEO
IPC: G02B6/28
Filed: 1992-12-18
Granted: 1999-09-14
Abstract: An optical fiber reinforcing structure and method of manufacture thereof for reinforcing an optical fiber having a cladding portion of its core removed to expose a bare fiber portion. The optical fiber core with the bare fiber portion is placed in a longitudinal groove of a reinforcing member. The optical fiber core is fixed to the reinforcing member at the ends of the longitudinal groove using an adhesive. A cover is then fixed to the reinforcing member to hermetically seal the optical fiber core within the longitudinal groove. The reinforcing structure of the present invention prevents environmental conditions from adversely affecting the optical characteristics of the optical fiber.
Patent CA-2092038-C (CA)
Title: Process for the preparation of nucleosides
Inventor: BRILL WOLFGANG K-D
IPC: C07H19/173
Filed: 1993-03-19
Granted: 2003-12-16
Abstract: A process for the preparation of natural or synthetic nucleosides, nucleoside analogs or oligonucleotides from at least two such nucleosides and/or nucleoside analogs whose basic molecule contains an unsubstituted or substituted radical of a nucleic base B  and a protected hydroxyl group of formula R1-O-, wherein R1 is a protective group, or which are linked to the oxygen atom of a hydroxyl group direct or to a solid support through a linking group, from nucleoside monomers or from oligonucleotides to the basic molecule of which, in addition to said radicals, a group of formula I, Ia or Ib   is attached, by converting the group of formula I, Ia or Ib into a hydroxyl group -OH by reacting the nucleosides or oligonucleotides, in the absence or presence of an inert organic solvent, with an excess of an aliphatic, cycloaliphatic araliphatic or aromatic alcohol containing 1 to 30 carbon atoms, a polyol containing 2 to 50 carbon atoms or a polymeric polyol, in the presence of at least a catalytic amount of an inorganic base or of an organic nitrogen base, which base has a pK value of 4 to 10.
Patent CA-2094876-C (CA)
Title: Fish fin remover
Inventor: KUDO NOBUO
IPC: A22C25/16
Filed: 1993-04-26
Granted: 2003-07-08
Abstract: A fish fin remover according to the present invention is capable of guiding a fish f n to be removed to the rotary blade thereof without difficulty and of cutting it with the same at its root accurately. In this fish fin remover, a guide frame has a step to allow the circumferential edge of the rotary blade to be accommodated so that the bottom of the guide frame across a fin pass area of the guide frame is substantially coplanar with the lower surface of the rotary blade.
Patent CA-2099705-C (CA)
Inventor: FLOCH BERNARD
IPC: B29C48/92
Filed: 1993-06-29
Granted: 1996-11-19
Abstract: Le dispositif sert au contrôle d'épaisseur et de régularité d'un revêtement en un matériau conducteur déposé sur un corps isolant allongé. Le dispositif comprend: un circuit électrique résonnant, un capteur sensible à une présence du corps allongé et faisant partie du circuit électrique résonnant, un dispositif connecté en sortie du circuit pour mesurer une quantité électrique fonction de l'épaisseur du revêtement en un matériau conducteur, et un dispositif pour traiter la quantité électrique et en déduire l'épaisseur du revêtement en un matériau conducteur. Le capteur est constitué d'un condensateur ayant un axe longitudinal et comportant deux armatures séparées l'une de l'autre par un entrefer contenant un matériau diélectrique. Le condensateur est adapté pour permettre au corps allongé de traverser l'entrefer entre les armatures. Chacune des armatures est tubulaire et cylindrique autour de l'axe longitudinal. Les armatures sont disposées de manière à former un prolongement l'une de l'autre et avoir un axe longitudinal commun qui coïncide avec l'axe longitudinal du condensateur. Un espace laissé entre des bords en regard des armatures constitue l'entrefer du condensateur, de sorte que le corps allongé est reçu dans le condensateur parallèlement à l'axe longitudinal du condensateur.
Patent CA-2102049-C (CA)
Inventor: KELLER ALFRED E
IPC: C07C2/62
Filed: 1993-10-29
Granted: 2002-03-26
Abstract: Refining processes for recovering HF from acid soluble oils (ASO) generated by the HF recovery unit of an HF alkylation unit are provided. ASO containing HF is removed from the HF recovery unit and contacted with water to form a system having two phases, an aqueous HF containing phase and an organic phase. After phase separation, the aqueous HF containing phase passes through a bed of fluidized NaF crystals, where the NaF reacts with the HF to form salts having the general formula NaF.cndot.nHF. Flow of the aqueous HF containing phase to the bed continues until exhaustion of the bed, as determined by the detection of HF in the effluent. After exhaustion of the bed, the process provides for the regeneration of the bed and release of anhydrous HF which is then returned to the HF alkylation unit.
Patent CA-2103298-C (CA)
Inventor: YOKOYAMA KEIICHI
IPC: H01M10/0569
Filed: 1993-11-17
Granted: 2000-11-07
Abstract: A novel carbonate compound represented by the general formula [I]:      R1CH2O-CO-OCH2R2 [I] wherein R1 represents a hydrogen atom, an alkyl group or an alkyl group substituted with one or more halogen atoms, and R2 represent an alkyl group having no hydrogen atom at the .alpha.-position thereof or an alkyl group substituted with one or more halogen atoms having no hydrogen atom at the .alpha.-position thereof, with the proviso that R1 is not identical to R2, which has excellent properties as solvent, is disclosed. A non-aqueous electrolytic solution and a battery utilizing the novel carbonate compound are also disclosed.