baber/WOPTO huggingface dataset:
Patent CA-2092407-A1 (CA)
Inventor: PAPENFUHS THEODOR
IPC: C07C205/26
Filed: 1991-09-25
Abstract: According to a process for producing isomer-free 2,3-difluor-6-nitrophenol, 2,3,4-trifluornitrobenzol is reacted with an aqueous solution of alkali metal or alkaline earth metal hydroxide in the absence of organic solvent, at temperatures between about 20°C and 100°C, the pH value of the reaction mixture is set at about 1 to 6 by acid addition, the resulting product is steam distilled and the 2,3-difluor-6-nitrophenol is isolated after cooling.  No organic solvents are used during any of the steps of the process.
Patent CA-2093894-A1 (CA)
Inventor: MILLS FLOYD D
IPC: F02N11/00
Filed: 1993-04-13
Abstract: Docket No. 1259-IR-TH                 ABSTRACT OF THE DISCLOSURE      A rotatable flange device for mounting a starter to an engine thereby permitting ready orientation of the starter and associated connections to adapt the starter configuration to a wide variety of engines, mounting positions, and vehicles.
Patent CA-2094716-A1 (CA)
Title: Dossier pour chaise ou siege
Inventor: RAJARATNAM KUMAR
IPC: A61G5/12
Filed: 1991-10-22
Abstract: Support dorsal (10) servant à soutenir le dos d'une personne assie, comprenant un élément en forme de coque concave (20) dont les côtés (50) se prolongent en avant de la coque (20) et des sangles (70) s'étendant entre les côtés (50) pour définir une surface de support dorsal (75), les sangles étant réglables en longueur entre les côtés (50), et l'agencement étant tel qu'une tension appliquée aux sangles (70) produit une déformation de la coque (20) de manière que la surface de support dorsal (75) s'adapte à la forme particulière du dos de la personne.
Patent CA-2094780-A1 (CA)
Title: Transform coded excitation for speech and audio coding
Inventor: ADOUL JEAN-PIERRE
IPC: G10L19/038
Filed: 1993-04-23
Abstract: ABSTRACT OF THE DISCLOSURE           A method for coding speech is disclosed. This method, called TCX (Transform Coded Excitation), combines features  of  time  domain  techniques,  such  as  CELP          (Code-Excited  Linear  Prediction),  with  features  of frequency-domain  techniques,  such as  TC  (Transform Coding), while avoiding their respective drawbacks. The invention preserves the principle of error minimization in the perceptually-weighted-speech(/audio) domain which is found in CELP along with techniques such as linear filtering and pitch prediction; yet, its circumvents the complexity of the CELP analysis-by-synthesis approach by using quantization.  The invention also takes advantage of the efficient frequency-domain quantization techniques typical of TC, such as spectral decimation, flexible bit allocation  as  well  as numerous  forms  of  stored  or algebraic vector quantization techniques.  Yet, unlike TC, the invention avoids the framing problems that plague block transforming of continuous processes.
Patent CA-2096718-A1 (CA)
Inventor: KREHL MICHAEL
IPC: B23K11/26
Filed: 1993-05-20
Abstract: A b s t r a c t A process for the manufacture of a gear wheel in an internal geared wheel pump In a process for the manufacture of a gear wheel in an internal geared wheel pump, which wheel consist of two half-wheels  (2A,  2B),  which  are  respectively  equipped with overflow ducts (3) constructed as half cavities (4A, 4B), into which balls can be inserted, the half-wheels (3A, 3B) are joined so that the complete overflow ducts  (3) are formed from the half-cavities (4A, 4B) and the teeth (5) of the gear wheel (1) lie over one another in alignment. The insertion of any valve balls into the half-cavities (4A or 4B) of a half-wheel (2A or 2B) is performed before a welding operation and the half-wheels (2A, 2B) undergo a capacitor discharge welding process.            Fig. 2
Patent CA-2097708-A1 (CA)
Title: Very large scale immobilized polymer synthesis
Inventor: FODOR STEPHEN P
IPC: C07K1/06
Filed: 1991-11-20
Abstract: A synthetic strategy for the creation of large scale chemical diversity. Solid-phase chemistry, photolabile protecting groups, and photolithography are used to achieve light-directed spatially-addressable parallel chemical synthesis. Binary masking techniques are utilized in one embodiment. A reactor system, photoremovable protecting groups, and improved data collection and handling techniques are also disclosed. A technique for screening linker molecules is also provided.
Patent CA-2097942-A1 (CA)
Inventor: KALLENBACH LYLE R
IPC: C04B35/64
Filed: 1993-06-28
Abstract: Sintering of an article molded from a first particulate material  comprising  silicon  nitride  employs  carbon  and ceramic-containing layers.  At least one outer layer comprising a second particulate material is positioned with respect to the article so as to be closely adjacent to but not contacting the article, and at least one inner layer comprising a third particulate material is intermediate to the outer layer and the article so as to at least partially surround the article.  The second particulate material comprises at least about 90 weight percent carbon, and the third particulate material comprises a ceramic compound selected from a nitride, a carbide, and mixtures thereof.  The article is heated while positioned with respect to the outer and inner layers as described above so as to result in a sintered article.
Patent CA-2099893-A1 (CA)
Inventor: YAJIMA EIICHI
IPC: G02B1/10
Filed: 1993-07-06
Abstract: An optical element having a cured coating film on optical base material wherein the cured coating film is prepared with a coating composition comprising an organosilicon compound and modified stannic oxide zirconium oxide composite colloidal particles which are obtained by partially or fully coating the surface of stannic oxide - zirconium oxide composite colloidal particles with tungstic oxide - stannic oxide composite colloidal particles. The formed cured coating film is excellent in hot water resistance, and light-resistance and weathering resistance are not impaired even when the antireflection film made by vepor deposition of inorganic oxides is applied on the cured coating film.
Patent CA-2100592-A1 (CA)
Title: Dispositif et procede de suppression des variations brutales de pression dans les vehicules, en particulier dans les vehicules terrestres
Inventor: GIRARD HERVE
IPC: F24F7/007
Filed: 1993-07-15
Abstract: L'invention concerne un dispositif de suppression des variations brutales de pression dans un véhicule climatisé ou ventilé, comprenant: un détecteur (16) des variations de, pression externe du véhicule délivrant des signaux représentatifs de ces variations, des moyens d'obturation des conduits d'aspiration d'air extérieur (2) et de rejet de l'air intérieur (4), un organe de contrôle (14) recevant les signaux du détecteur et commandant l'obturation des conduits (2, 4) à partir d'un premier niveau déterminé de variation de pression externe, cet organe commandant également la réouverture des conduits après que la variation de pression extérieure est descendue en-dessous d'un second niveau déterminé, des moyens d'équilibrage entre pression intérieure et pression extérieure de manière à maintenir la variation temporelle de pression interne au véhicule en-dessous d'une valeur imposée.
Patent CA-2102293-A1 (CA)
Title: Shock isolation for selective call receivers
Inventor: ROLLINS THOMAS J
IPC: H04W84/02
Filed: 1992-03-02
Abstract: A shock isolator (30) is provided within the housing (38) of a selective call receiver to substantially increase the natural fre-quency of vibration of the housing (38) and the printed circuit boards (54, 56) within the housing.  The shock isolator (30) is a body of elastomeric material, preferably butyl rubber, which has component receiving apertures (32) molded therein for receiving the components (46, 48, 50) on the printed circuit board while at the same time contacting the printed circuit board.  Th? ??yl rub-ber has a damping of at least 25 % (preferably 50 %) and a Durometer of between 50 and 70 type A (prererably 60).
Patent CA-2108861-A1 (CA)
Inventor: DRNEVICH RAYMOND F
IPC: C01B21/28
Filed: 1993-10-20
Abstract: The present invention relates to processes and apparatus for mixing oxidizable reactants with oxidant and/or oxidizing oxidizable reactants.  Through using particular mixing and/or oxidizing arrangements, the risk of flammable or explosive reactions can be significantly reduced or prevented.  When ammonia is used as the reactant, nitric acid can be obtained.
Patent CA-2109160-A1 (CA)
Inventor: KUHN DAVID G
IPC: C07D277/42
Filed: 1993-10-25
Abstract: N-AMINOALKYLCARBONYLOXYALKYLPYRROLE INSECTICIDAL        ACARICIDAL AND MOLLUSCICIDAL AGENTS                 ABSTRACT OF THE INVENTION        There are provided N-aminoalkylcarbonyloxy-alkylpyrrole compounds of formula I                              (I) and their use for the control of insects, acarina and mollusks.  Further provided are compositions and methods comprising those compounds for the protection of plants from attack by insects, acarina and mollusks.
Patent CA-2111715-A1 (CA)
Title: Vacuum cleaner
Inventor: WOERWAG PETER
IPC: A47L9/04
Filed: 1993-12-17
Abstract: Abstract 1.   Vacuum cleaning tool with  an  electrically  driven brush roller.   2.1  The  invention  relates  to  a vacuum cleaning tool for connection to the  suction  pipe  of  a  vacuum cleaner  with a  brush  roller  arranged to rotate in a brush chamber, which roller is set in rotation by  an  electric  motor.  The bristles of the brush roller  project  through  a  suction   opening   in a  base  plate  of  the  cleaning  tool, which lies opposite the floor to be cleaned.   2.2  In order to  prevent  damage  to  a  textile  floor covering  by  the  rotating  brush  of a stationary cleaning tool it  is  provided  that  the  electric motor  is  connected  to  a  speed regulator, which is controlled  by  a  movement  sensor  by  way  of a  recognition  circuit and depending on the sensor signal, the electric  motor  can  be switched  off by the speed regulator.   2.3  Working   apparatus  with  working tools  rotating during the working movement.
Patent CA-2111971-A1 (CA)
Title: Ibuprofen resolution
Inventor: STAHLY GLENN P
IPC: C07C51/487
Filed: 1992-06-16
Abstract: A process for obtaining a substantially pure enantiomer of ibuprofen is described. The process utilizes first an enantiomerically enriched mixture of ibuprofen obtained from kinetic resolution, diastereomeric crystallization or asymmetric synthesis processes.  This enriched mixture is dissolved in a solvent and solid racemic ibuprofen is separated, leaving a mother liquor comprising the solvent and the enriched enantiomer substantially free of the other enantiomer.
Patent CA-2116223-A1 (CA)
Title: Purification of crude ioversol using continuous deionization
Inventor: KNELLER MILLS T
IPC: C07C237/46
Filed: 1992-09-22
Abstract: The use of continuous deionization as an alternative or substitute method for the purification of a crude contrast agent.
Patent CA-2118673-A1 (CA)
Title: Plug or lock for use in oil field tubular members and an operating system therefor
Inventor: KILGORE MARION D
IPC: E21B23/06
Filed: 1994-03-09
Abstract: ABSTRACT A retrievable well lock for use within a subterranean tubular member. The lock features a packing assembly having a substantially elastomeric sleeve which may be axially compressed into an expanded diameter condition against the interior surface of a surrounding tubing string. Axial ends of the sleeve are configured to engage generally matching notched members on either side of the sleeve which, by divergent axial movement, axially draw the sleeve to a reduced diameter condition and maintain the sleeve under divergent axial tension. A barrel slip assembly of the lock has a radially variable body with a continuous circumference. The body's axial ends are adapted to fixedly engage portions of the lock such that the body is capable of transmitting an axial tensile load across its length. The body contains substantially lengthwise slotted portions which permit radial expansion of the radially variable body. The lock may be emplaced and set at substantially any point within the tubing string and is operable between an expanded diameter condition and a reduced diameter condition. A downhole power tool is described which may be adapted to emplace ("run") or remove ("pull") the lock from the tubing string. The tool features a power assembly and a working assembly proximate the tool's lower end which comprises an inner member and an outer member. The inner member comprises an elongated rod which is adapted to be moved by the power assembly in a generally axial direction. An outer member generally surrounds the inner member and is adapted to engage and exert axial force upon a portion of the lock in a generally opposite axial direction. The power tool includes an integral power assembly which permits extended setting sequences for placing locks. In preferred embodiments, the tool incorporates one or more activation assemblies and a clutch mechanism to disengage the translational force provided by the power assembly from the working assembly. Preferred embodiments of the power tool as a running tool and as a pulling tool are described.
Patent CA-2119237-A1 (CA)
Title: Adjustable automobile pedal system
Inventor: CICOTTE EDMOND B
IPC: G05G1/40
Filed: 1992-09-25
Abstract: A method of and an adjustment device for adjusting an automobile control pedals capable of pivotably adjusting the control pedal about an axis of pedal arm rotation relative to a reaction member, such as the eyelet of a cylinder pushrod for a brake pedal or a flexible cable in case of an accelerator pedal. The adjustment device allows the control pedal to be positioned to suit the needs of a particular driver. The control pedal can be pivotable attached to a frame in any conventional manner, such as with a pivot pin. The adjustment device is mounted alongside the control pedal and to the pushrod eyelet without the need of additional support hardware other than a device for acting on the control pedal. The adjustment device includes a rotatable member for causing pivotable movement of the pedal arm relative to the reaction member.      The adjustment device is maintained a predetermined distance from the pivot of the control pedal arm by a spacing device, such as a link. The adjustment device also includes a rotatable driving device for rotating the rotatable member about its axis of rotation to produce a corresponding displacement of the control pedal arm.
Patent CA-2123918-A1 (CA)
Title: Gel shell splint
Inventor: JANEVSKI PETER K
IPC: A61F5/01
Filed: 1994-05-13
Abstract: ABSTRACT                         GEL SHELL SPLINT      The present invention relates to a gel shell splint for the hand which has an elongated support constructed of an elastomeric material that is shaped to fit the center portion of a human hand. The support is releasably secured around the hand with the support being secured on either the dorsal or palmar side of the hand. A rigid shell shaped to fit the center portion of the hand is releasably secured to the interior side of the support and a compressible pad is attached to the interior side of the shell.
Patent CA-2124598-A1 (CA)
Title: Apparatus for the automated application of spacer material and method of using same
Inventor: LAFOND LUC
IPC: E06B3/673
Filed: 1994-05-26
Abstract: There is disclosed an apparatus for applying a length of spacer material to a substrate having sides and ends comprising advancing means for advancing a substrate from a first position to a second position,    applying means for applying a length of spacer material to said substrate,  said last-mentioned means having advancing means for advancing a length of spacer material from a supply thereof, means for placing said length of spacer material into juxtaposition with said substrate along at least one side and one end of said substrate, means for advancing said applying means along a length of said substrate,  means for notching said spacer material at a corner position in the length of said spacer material.   The apparatus has the advantage of simple construction and a very efficient operation eliminating the necessity for manual application of spacer strips to glass lites.
Patent CA-2127231-A1 (CA)
Inventor: CROKER JOHN C
IPC: A47B53/02
Filed: 1994-06-30
Abstract: Abstract of the Invention A movable storage system has one or more storage units, a plurality of flexible track elements conformable with an irregular supporting surface, and an individual base structure which supports each storage unit for movement along the track elements through roller members associated with particular track elements. The flexible track elements have a pair of cylindrical longitudinally extending track members supported by a flexible base. The roller members or wheels have a generally U-shaped external contour which encompasses the track elements and prevents derailing of the storage units.
Patent CA-2129233-A1 (CA)
Inventor: PARKINSON DEAN B
IPC: G11B7/00
Filed: 1994-02-18
Abstract: An optical recording structure comprises a thermally stable substrate and a polymeric layer deposited on the substrate comprised of a poly(ester-amide). Laser beams are directed at the deposited polymeric layer to record or erase information. The recording structure has an excellent dimensional and mechanical stability on storage, readily and easily records information, and has an ability to be easily and completely erased.
Patent CA-2130869-A1 (CA)
Title: Steering drill bit while drilling a bore hole
Inventor: GRAY BENJAMIN
IPC: E21B19/22
Filed: 1994-08-25
Abstract: A conventional drilling system using continuous coiled tubing connected to a reel at its upper end and connected to a drilling tool at its lower end is steered by rotating the injector at the well head which drives the tubing into the well about an axis longitudinal of the well bore to effect twist in the tubing along the well bore and thus to rotate the drilling tool. This twist in the tubing between the injector and the reel is negated by rotating the reel about a vertical axis parallel to the well bore in a direction, viewed from above, which is opposite to the direction of the injector.
Patent CA-2130924-A1 (CA)
Title: Preparation of substituted guanidines
Inventor: DURANT GRAHAM J
IPC: C07C279/18
Filed: 1993-03-17
Abstract: A process for the preparation of a substituted guanidine by reacting a substituted cyanamide with ammonia or a substituted amine in the presence of a Lewis acid catalyst. Also disclosed is a process for the preparation of a tri-substituted guanidine by reacting a mono-substituted cyanamide with a di-substituted amine.
Patent CA-2131882-A1 (CA)
Title: Double seal peelable barrier overwrap
Inventor: MIZE JAMES A JR
IPC: B65D1/34
Filed: 1994-09-12
Abstract: ABSTRACT OF THE DISCLOSURE    A package for a product includes a support member supporting the product; a permeable film sealed to the support member at a first seal for enclosing the product; and an impermeable film sealed to the support member at a second seal for enclosing the permeable film whereby breaking of the second seal and removal of the impermeable film is accomplished without breaking the first seal.
Patent CA-2132022-A1 (CA)
Title: Hide-away bar flag
Inventor: HENZE BERNARD J
IPC: B62J6/00
Filed: 1994-09-08
Abstract: A safety device for use on mountain bicycles extending laterally from the left side handlebar warning other vehicles to maintain a prescribed distance while passing cyclist. When this safety device is not utilized by the cyclist, it conveniently inserts into the left side of the handlebar for storage, thereby establishing it's "hide-away" novelty/function.
Patent CA-2133105-A1 (CA)
Title: Biodegradable, water resistant polymer material
Inventor: BRAUMER KLAUS
IPC: C09H7/00
Filed: 1993-03-11
Abstract: A novel biodegradable, water-resistant polymer material which can be produced with defined material properties is suggested, in particular in the form of foils, films, strips, masses, molded articles or the like, this material consisting essentially of a product of the cross-linking reaction of polysaccharides and/or polypeptides, the hydroxyl, amino, imino, thiol and/or carboxyl groups of which are derivatized at least partially in a non-radical reaction with agents which include groups cross-linkable in a process step following the derivatization and separate therefrom.
Patent CA-2133499-A1 (CA)
Title: Bonding substrate with solid adhesives
Inventor: ARTHURS TREVOR C
IPC: C08L73/00
Filed: 1994-10-03
Abstract: ABSTRACT OF THE DISCLOSURE A process for the bonding of substrates selected from polyvinyl chloride, cellulosic material, metals, polymers of melamine and polymers of phenol is disclosed. A layer of a thermoplastic polymer is interposed between two of the substrates and heated above its melting point. The thermoplastic polymer is a copolymer of ethylene, alkyl acrylate and carbon monoxide.  In aspects, polyvinyl chloride to is bonded to cellulosic material at a temperature of less than 90°C to give structures that are useful at temperatures of greater than 100°C.  The process is particularly useful in the manufacture of substrates for the manufacture of kitchen cabinets and other furniture.
Patent CA-2135141-A1 (CA)
Inventor: PETERS MICHAEL W
IPC: C07C41/09
Filed: 1994-11-04
Abstract: ISOBUTYLENE-ASSISTED AQUEOUS EXTRACTION OF METHANOL FROM METHYL TERTIARY BUTYL ETHER              (Docket No. 81,148-F) ABSTRACT OF THE DISCLOSURE           An impure methyl tertiary butyl ether product contami-nated with isobutylene, methanol and water is purified by continuous counter-current contact with water and an isobutyl-ene fraction in an extraction zone comprising a counter-current contact tower to provide an overhead raffinate comprising isobutylene, methyl tertiary butyl ether and a minor amount of water and an extract comprising methanol, water and a minor amount of methyl tertiary butyl ether; the overhead raffinate being separated in a methyl tertiary butyl ether purification distillation zone into a lighter distilla-tion fraction comprising isobutylene and water and a heavier distillation fraction consisting essentially of methyl tertiary butyl ether; the lighter distillation fraction being decanted to remove water and to provide a distillate isobutyl-ene fraction that is returned to the contact tower as the isobutylene fraction.
Patent CA-2138526-A1 (CA)
Title: Method of operating a combination radiotelephone and paging device
Inventor: OKADA TOMOYUKI
IPC: H04M1/72403
Filed: 1994-03-31
Abstract: A combined radiotelephone and paging device (101), hereinafter the combined unit, normally operates as a radiotelephone. In response to a predetermined condition, the combined unit operates as a paging device. The predetermined conditions include low battery voltage and poor communication channel quality or a request signal from a remote transceiver (109) of the radiotelephone system. The paging system and the radiotelephone system may be independent communication systems or they may be a single communication system. The combined unit (101) and its unique switching characteristics allows the combined unit (101) to utilize the paging devices beneficial qualities of lower power consumption and broader service range to enhance the usefulness of a radiotelephone.