baber/WOPTO huggingface dataset:
Patent CA-2169380-A1 (CA)
Title: The preparation of pyrazole and its derivatives
Inventor: MERKLE HANS RUPERT
IPC: C07D231/12
Filed: 1994-08-13
Abstract: A process is disclosed for preparing pyrazole and its derivatives having formula (I), in which the residues R1, R2, R3 and R4 stand fot hydrogen, halogen, nitro, carboxyl, sulfonyl or C-organic residues, from alpha,beta-unsaturated carbonyl compounds having formula (II) and from hydrazine or hydrazine derivatives having formula (III). The process is characterised in that an alpha,beta-unsaturated carbonyl compound having formula (II) is at first reacted without additional diluting agents with hydrazine or a hydrazine derivative having formula (III), and the thus obtained reaction mixture is reacted in an additional reaction step with a mixture of sulphuric acid and iodine or a iodine-or hydrogen iodide-releasing compound.
Patent CA-2169643-A1 (CA)
Title: Substituted 5-ring heterocycles, their preparation and their use
Inventor: ZOLLER GERHARD
IPC: C07D233/76
Filed: 1994-10-24
Abstract: The present invention relates to 5-membered ring hetero-cycles of the general formula I,   (I) in which W, Y, Z, B, D, E and R, and also b, c, d, e, f, g and h, have the meaning given in the description, to processes for their preparation and to their use as inhibitors of thrombocyte aggre-gation, the metastasization of carcinoma cells, and also the binding of osteoclasts to the bone surface.
Patent CA-2170874-A1 (CA)
Inventor: OKADA MINORU
IPC: C07D233/56
Filed: 1994-09-28
Abstract: On décrit un dérivé d'azole représenté par la formule générale (I), ainsi qu'un sel, un hydrate ou un solvate de ce dérivé. Dans la formule, R?1¿ et R?2¿ peuvent être identiques ou différents et représentent chacun hydrogène, alkyle inférieur ou phényle éventuellement halogéné; A, B et D peuvent être identiques ou différents et représentent chacun =CR?3¿- ou azote; X et Y peuvent être identiques ou différents et représentent chacun une liaison unique, méthylène, oxygène, S(O)n ou -NR?4¿-; R?3¿ et R?4¿ peuvent être identiques ou différents et représentent chacun hydrogène ou alkyle inférieur; et n représente 0, 1 ou 2. Ce composé présente une activité inhibant la lyase stéroïdienne 17-20 et est utile comme agent de prévention du cancer de la prostate, de l'hypertrophie de la prostate, du virilisme, du cancer du sein, des mastopathies, du myome utérin et de l'endométriose.
Patent CA-2174740-A1 (CA)
Inventor: BEERSE PETER WILLIAM
IPC: A61K8/46
Filed: 1994-10-28
Abstract: La présente invention concerne un détergent en pain de nettoyage à usage personnel comprenant de 10 parts à 70 parts en poids par pain d'un iséthionate (cocoyle de distillation primaire) acyle C¿12?-C¿18? de distillation primaire, distillé (STCI). Le pain de cette invention contient peu ou pas (0 à 2,8 parts) de groupes acyle extrêment solubles (iséthionate de sodium C¿6?, C¿8?, C¿10?, C¿18:1? et iséthionate acyle C¿18:2?). Le pain de cette invention est doux, et a un parfun plus agréable qu'un pain fabriqué de l'iséthionate cocoyle de sodium ordinaire (SCI), et est plus stable en terme à la fois d'odeur et de couleur, et est plus facile à fabriquer. Un pain de STCI préféré présente un taux élevé d'humidité sans avoir les désavantages de traitement d'un pain ordinaire ayant un taux élevé d'humidité et contribue à une meilleure formation de mousse. L'iséthionate cocoyle de distillation primaire de sodium (STCI) permet également d'augmenter les niveaux des liquides et des substances hygroscopiques, dans la formulation en pain, sans avoir les désavantages de traitement habituels.
Patent CA-2176407-A1 (CA)
Title: Regeneration of a titanium-containing molecular sieve
Inventor: CROCCO GUY L
IPC: C07D301/12
Filed: 1996-05-13
Abstract: A titanium-containing molecular sieve which has been used as an oxidation catalyst is regenerated to provide a level of performance comparable to that of freshly prepared catalyst by heating at less than 400°C in the presence of molecular oxygen. The same batch of catalyst thus may be used over an extended period of time in a continuous epoxidation process by periodic practice of the aforedescribed reactivation method.
Patent CA-2178266-A1 (CA)
Title: Shelf extender
Inventor: GARFINKLE BENJAMIN L
IPC: G09F3/20
Filed: 1996-06-05
Abstract: A shelf extender for attachment to a perf-board shelf having a regular array of holes configured therein. Slots are configured within the top surface of the shelf extender for receiving plastic rivets or other suitable attachment means which are caused to pass through the slots and within the holes contained within the supported shelf for slidable attachment of the shelf extender thereto.
Patent CA-2179553-A1 (CA)
Inventor: DEVANBU PREMKUMAR THOMAS
IPC: G06F11/28
Filed: 1996-06-20
Abstract: Techniques for obtaining information about dynamic properties of a first program. The techniques involve making a static analysis of the first program to determine what instrumentation is needed to produce the desired information and then producing a second program which causes a programmable instrumentation apparatus to produce an instrumented version of the first program. The programmable instrumentation apparatus may be a programmable binary editor or a a debugger. Execution of the instrumented program provides the information about the dynamic properties. The program for the instrumentation apparatus is produced by a source code analyzer which statically analysis the source code. The source code analyzer is in turn produced by a code analyzer generator. Output from the instrumentation may be provided to a graphical display system. In one use of the techniques, the code analyzer generator not only generates a source code analyzer for producing the second program, but also a source code analyzer for producing a program which when executed by a graphical browser makes a flow graph for the program. In this case, the graphical browser responds to the output from the execution environment by altering the appearance of the flow graph.
Patent CA-2184769-A1 (CA)
Title: Web inspection and repair machine with web indexer device
Inventor: PRITTIE ALLAN R
IPC: B65H26/02
Filed: 1996-09-04
Abstract: A device for the inspection and repair of a roll of web material includes an unwind mandrel, a rewind mandrel, an inspection area and a splice area. A flaw in the web is detected at the inspection area, whereupon the web is braked to a halt. Where the splice area is adjacent to or coincident with the inspection area, the flawed portion of the web can pass well beyond the splice area before the web comes to a halt. Provided herein is a web-indexer device that includes a reciprocating indexer shuttle having idler rolls mounted thereon, with further idler rolls mounted to the machine such that the web material can be strung between them in a substantiallyboustrophedonic configuration.  Control means are provided to allow the operatorwho has caused the web to be braked to a halt upon detecting a flaw, to move theindexer frame so as to retrieve a portion of the web so as to bring the flaw back to the splicing station for repair, without having to reverse the rotational direction of the unwind mandrel or the rewind mandrel.
Patent CA-2185033-A1 (CA)
Inventor: SHORT STEPHEN P
IPC: H01H9/24
Filed: 1996-09-06
Abstract: A thermostatic switch has a housing and a temperature responsive bimetallic disc located in the housing and responsive to a predetermined temperature for exerting a flexing action.   A fixed contact member is located in the cavity along with a movable contact member which is biased and movable between a switch-closed position in which it makes electrical contact with the fixed contact member and a switch-open position in which it is spaced from the fixed contact member.  An actuating member is located in the housing, and is responsive to flexing movement of the disc for moving the movable contact member from the switch-closed position to the switch-open position.  A hook portion is mounted within the cavity of the housing, the hook portion engaging an arm portion of the movable contact member upon the movement of the movable contact member to its switch-open position and entering an opening of the arm portion for retaining and maintaining the movable contact member in its switch open position.
Patent CA-2185761-A1 (CA)
Title: Equipment and method for calibration and quality assurance of an ultrasonic bone analysis apparatus
Inventor: WILSON KEVIN
IPC: A61B8/08
Filed: 1996-09-17
Abstract: An improvement to calibration and quality assurance of an ultrasonic bone analysis apparatus is achieved by using phantoms.          A received ultrasound signal that passed through a first phantom is used as a baseline for calculating BUA.  The first phantom has an attenuation-versus-frequency profile that is substantially flat in a frequency range of 200 to 1000 kHz and a sound impedance that approximates that of  soft human tissue.   A propagation time of the signal is used to calibrate a zero point of the apparatus.   A second phantom has an attenuation in a frequency range of 200-1000 kHz which approximates that of a human foot,  including an attenuation-versus-frequency profile that is substantially linear in the frequency range of 200-600 kHz and is approximately 1 dB/MHz per mm.  A received ultrasound signal  that  passed  through the  second  phantom  is  used  to calibrate the apparatus for a BUA calculation, and can also be used for at least one of determining and correcting a drift of the apparatus.  A third phantom has a predetermined SOS that is substantially independent of temperature.  A received ultrasound signal that passed through the third phantom is used to calibrate the apparatus for a SOS calculation, and can also be used for at least one of determining and correcting instrument drift.  An ultrasonic  signal  is  transmitted  through  mutually  touching transducer pads.  The received signal is used as a baseline for calculating BUA;  A measurement of the propagation time of the received  signal  is  compared  with  a  temporally-proximate measurement  of  an ultrasonic  signal  that passed  through  a patient's heel to determine a time of propagation through the heel.
Patent CA-2185774-A1 (CA)
Title: Gas discharge lamps and systems
Inventor: TYLER PETER MICHAEL
IPC: H05B41/24
Filed: 1996-09-17
Abstract: Conventional fluorescent discharge lamps can have a glow mode electrode extending along its length to extend its dimming range. In the present invention, there are two glow mode electrodes wound around the lamp in a helical fashion. One circuit drives the main electrodes at opposite ends of the lamp at high levels of brightness. Another circuit drives the glow mode electrodes at low levels of brightness, at about 10MHz. At intermediate levels of brightness, both the main electrodes and the glow mode electrodes are driven, the two sets of electrodes being driven for alternate on and off periods with the glow mode electrodes being on when the main electrodes are off and the glow mode electrodes being off when the main electrodes are on.
Patent CA-2189511-A1 (CA)
Inventor: SIVIK MATTHEW R
IPC: C10M145/16
Filed: 1996-11-04
Abstract: This invention relates to compositions which are useful as additives in lubricants and fuels, and more particularly, to additives which are chlorine-free or contain only minor amounts of chlorine. More particularly, carboxylic compositions are described which are prepared by reacting a terpolymer derived from a mixture of monomers comprising ethylene, an alpha-olefin containing 3 to about 20 carbon atoms, and a non-conjugated polyene with an alpha, beta-monounsaturated dicarboxylic acid or reactive derivative thereof. These carboxylic compositions may be used in lubricating oil or fuel compositions or may be used to form carboxylic derivative compositions which are useful in lubricating oil and fuel compositions. Such useful carboxylic derivative compositions can be prepared by reacting at least one of the above-described carboxylic compositions with a reactant selected from the group consisting of (A) amines characterized by the presence within their structure of at least one H-N < group, (B) alcohols, (C) reactive metal or reactive metal compounds, and (D) a combination of two or more of any one of (A) through (C), the components of (D) being reacted with one or more of the carboxylic compositions simultaneously or sequentially in any order. In another embodiment, the carboxylic composition may be prepared by reacting a mixture of an alpha-olefin polymer, the above-described terpolymer, and an alpha, beta-monounsaturated dicarboxylic acid or reactive derivative thereof.
Patent CA-2193607-A1 (CA)
Title: Non-free flowable molding powders of modified polytetrafluoroethylenes
Inventor: LOEHR GERNOT
IPC: B29C43/00
Filed: 1996-12-20
Abstract: Non-free flowable, non-dusting molding powders with a bulk density of more than 450 g/l are obtained when a suspension polymer of tetrafluoroethylene with a content of 0.01 to 1 % by weight of units of at least one perfluoro(alkyl-vinyl) ether is ground to a particle diameter of 10 to 50 µm and agglomerated in water.
Patent CA-2193933-A1 (CA)
Inventor: SAITO YOSHIHIRO
IPC: F28F3/04
Filed: 1996-12-24
Abstract: A process for producing a flat heat exchange tube having parallel refrigerant passages in its interior and comprising flat upper and lower walls, opposite side walls and a plurality of reinforcing walls connected between the upper and lower walls, extending longitudinally of the tube and spaced apart from one another by a predetermined distance, using a rolling mill comprising a central work roll and a plurality of planetary work rolls arranged around a portion of the periphery of the central work roll and spaced apart circumferentially thereof, the central work roll being formed with parallel annular grooves in the periphery thereof. An aluminum sheet blank comprising a brazing sheet is rolled by the mill and thereby thinned to a predetermined thickness to form a flat portion serving as the lower wall, cause the annular grooves at opposite roll ends to form upright portions providing the respective side walls and the other annular grooves to form vertical ridges providing the reinforcing walls, the upright portions and the vertical ridges projecting from the flat portion integrally therewith.      An aluminum sheet comprising a brazing sheet is placed over all the ridges to provide the upper wall and joined to the upright portions to make the upright portions serve as the opposite side walls, and the ridges of the lower wall are joined to the upper wall to form the reinforcing walls.
Patent CA-2194117-A1 (CA)
Inventor: METZ-STAVENHAGEN PETER
IPC: A61F2/44
Filed: 1996-12-30
Abstract: Spine implant which is formed as hollow body with at least one throughgoing opening in a side wall for receiving bone material  and  the  surface  of  the  implant  predominantly having a roughness, wherein the hollow body substantially has a round cross section over its entire length.
Patent CA-2194371-A1 (CA)
Title: Low-dose steroid tablets containing gallic acid esters as antioxidant agent, process for the manufacture of said tablets, and uses of said tablets
Inventor: BACKENSFELD THOMAS
IPC: A61K47/14
Filed: 1995-06-30
Abstract: The invention concerns medicaments containing low concentrations of homogeneously distributed gallic acid esters as an antioxidant in combination with an active ingredient, and the use of such medicaments.
Patent CA-2195598-A1 (CA)
Title: Glass fiber laser system using u-doped crystal q-switch
Inventor: STULTZ ROBERT D
IPC: H01S3/17
Filed: 1997-01-21
Abstract: A glass fiber laser system includes a laser resonator cavity having a resonant path and an erbium-doped glass fiber lasing element with an output of from about 1.5 to about 1.6 micrometers within the laser resonator cavity. A light source directed into an input end of the glass fiber lasing element optically pumps the lasing element to emit light. A passive Q-switch lies along the resonant path within the laser resonator cavity. The Q-switch is formed of a host material having a concentration of uranium ions therein, so as to be a saturable absorber of the light emitted by the lasing element. The Q-switch is preferably a uranium-doped fluoride crystal such as U:CaF2, U:SrF2, or U:BaF2.
Patent CA-2198155-A1 (CA)
Title: Dispositif d'agrandissement et de classification pour boitiers de disquelaser
Inventor: JACQUES JEAN-FRANCOIS
IPC: G02B3/06
Filed: 1997-02-21
Abstract: Le précis n'est pas disponible en Not Yet Available ce moment
Patent CA-2198779-A1 (CA)
Title: Multi-channel acquisition using integrating sphere
Inventor: TOMEI DAVID L
IPC: G01J1/04
Filed: 1996-05-13
Abstract: The present invention is a novel apparatus that employs an integrating sphere (62) as a source of diffused light for multiple PMTs (64). The PMTs (64) are coupled to the integrating sphere (62) to receive diffused light from the integrating sphere (62). An optional faceplate (66) may be employed at the input port of the integrating sphere (62) in order to select certain characteristics of the light according to the characteristics of the faceplate (66).
Patent CA-2201458-A1 (CA)
Title: Improved resectoscope
Inventor: VILOS GEORGE A
IPC: A61B17/94
Filed: 1997-04-01
Abstract: A resectoscope for internal surgery generally comprising a operating handle having extendible instruments such as a cutting tool, viewing means such as a telescope and a light conduit and passageways to supply and remove aspirating fluid to lubricate and to wash the surgical site wherein said extendible instruments are contained within a tube divided in cross section by longitudinal wall into first and second sectors, said first sector being smaller than the second sector and containing the viewing means and providing a passageway for the supply of aspirating fluid, said second sector containing the cutting tool and providing a large passageway for the removal of aspirating fluid and surgical morsels for collection and optionally having a valving mechanism activated by retraction or extension of the cutting tool.
Patent CA-2203024-A1 (CA)
Inventor: MEYER HEINRICH
IPC: H05K3/38
Filed: 1995-10-18
Abstract: On connaît les substrats en polyimide munis de couches de cuivre, utilisés dans l'industrie électronique, qui sont obtenus par décomposition de composés organo-métalliques selon un procédé de décharge lumineuse, puis par métallisation sans courant du film métal produit. Lors du dépôt de la première couche de métal, il se produit, sans apport d'oxygène, des couches exemptes de carbone dont la conductivité et l'activité catalytique sont faibles. Si l'on n'utilise que des bains de métallisation alcalins, des couches de métal très adhérentes sont tout d'abord déposées sur les surfaces en polyimide, mais l'adhérence des couches de métal vis-à-vis du polyimide se trouve considérablement altérée lorsque le métal est en contact avec des solutions alcalino-aqueuses. Si l'on travaille dans une atmosphère d'oxygène, on obtient des couches de palladium qu'il faut ensuite réduire. Ce type de couches ne présentent pas de pouvoir adhésif ou uniquement un pouvoir adhésif réduit, lorsqu'elles sont soumises à des solutions de traitement chimiques ou électrochimiques. L'utilisation de mélanges de composés contenant de l'oxygène et de gaz inerte lors du dépôt électrolytique dans la décharge lumineuse, permet d'obtenir des couches à faible teneur en oxygène et en carbone. De plus, la diminution du pouvoir adhésif lorsque le substrat métallique est en contact avec des solutions alcalino-aqueuses peut être évitée, par l'utilisation de bains de métallisation sans courant acides ou neutres, pour produire la seconde couche de métal. Ce procédé est le premier du genre à permettre la production de support de circuits de haute densité à partir de films de polyimide non métallisés.
Patent CA-2203670-A1 (CA)
Inventor: GRAY CAROL WENDY
IPC: A61K31/435
Filed: 1995-10-17
Abstract: On décrit un procédé d'activation du traitement de la protéine précurseur amyloïde, le long d'un trajet non amyloïdogénique, chez des patients souffrant de la maladie d'Alzheimer ou présentant un risque de développement de celle-ci, ainsi qu'une méthode de traitement ou de prophylaxie de la maladie d'Alzheimer visant à réduire la production de .beta.A4 chez des patients souffrant de la maladie d'Alzheimer ou présentant un risque de développement de celle-ci, et consistant à administrer à un patient une quantité efficace et non toxique d'un composé acétonitrile. On décrit également l'utilisation de ce composé dans la préparation d'un médicament, ainsi qu'une composition, lesquels sont utiles dans cette méthode de traitement.
Patent CA-2203837-A1 (CA)
Title: Display device having article guide means for encouraging stock rotation
Inventor: COOPER ELIZABETH T
IPC: A47F1/12
Filed: 1995-10-27
Abstract: A display device has an article dispenser (64) having front and rear opposite edges (80, 82) and designed to support articles. The dispenser includes a plurality of parallel tracks extending from the front edge (80) of the dispenser toward the rear edge (82). Each track receives a row of articles (B0B8) for movement along that track. The dispenser also includes a diverting pathway extending substantially transversely of the tracks. The pathway interconnects the rear ends of the tracks and receives articles for movment therealong so that articles are allowed to be transferred from the pathway to each track and vice versa. The dispenser further includes a guide member (84, 98, 108, 126, 152, 216) disposed adjacent to the rear end of one of the tracks. When the articles in the track associated with the guide member are moved backwards along that track, they are brought into contact one after another with the front surface (90, 110) of the guide member and guided laterally along the front surface into the pathway.
Patent CA-2205271-A1 (CA)
Title: Post atrial cardioversion high rate atrial pacing with gradual rate return
Inventor: AYERS GREGORY M
IPC: A61N1/365
Filed: 1997-05-14
Abstract: An  implantable  atrial  defibrillator  includes   a cardiovertor for applying cardioverting electrical energy to the  atria  of  a  heart  when  the  atria  are  in  need  of cardioversion.   The defibrillator further includes a pacer for pacing the atria of the heart immediately after each application of cardioverting electrical energy to the atria of the heart.   A rate control commences the pacing at a relatively high first rate and gradually reduces the rate to a lower second rate.
Patent CA-2205303-A1 (CA)
Title: Apparatus for inspecting a gear
Inventor: FLAIR HENRY J
IPC: G01M13/02
Filed: 1995-08-02
Abstract: A master gear (100) for measuring, in a parallel axis gear measuring apparatus (10), tooth profile, tooth pitch and tooth thickness of a work gear (200). The master gear (100) has a plurality of adjacent teeth separated by a tooth spacing that varies as a repeatable sequence of spacings, wherein the master gear (100) contacts only a single tooth of the work gear (200) during measurement of work gear tooth profile and tooth thickness. The master gear (100) contacts only two teeth of the work gear (200) during a transition between measurement of tooth profile of individual teeth of the work gear (200), wherein tooth pitch is measured during the transition. The master gear (100) also has transverse operating pressure angle dependent on a transverse pressure angle at an outer diameter of the work gear (200), a transverse pressure angle at a form diameter of the work gear (200), a transverse pressure angle at a pitch diameter of the work gear (200), a transverse tooth thickness at a pitch diameter of the work gear (200) and a pitch diameter of the work gear (200). In one embodiment, the master gear (100) has helical teeth having a tooth spacing and a gear width dependent on a contact ratio of the work gear (200). In another embodiment, the master gear (100) has spur teeth for measuring a work gear (200) having spur teeth. The master gear (100) having spur teeth is defined by parameters relating to a pressure angle of an imaginary outer diameter of the work gear (200) and a pressure angle of an imaginary form diameter of the work gear (200).