baber/WOPTO huggingface dataset:
Patent CA-2074065-C (CA)
Inventor: PERRON JEAN-NOEL
IPC: C02F1/52
Filed: 1992-07-16
Granted: 2001-01-16
Abstract: L'équipement comprend une pompe à vide pour la récupération des déchets liquides et solides d une fosse septique et qui les dirige vers un réservoir en même temps qu'est ajouté un polymère au produit du pompage pour accélérer la coagulation des solides. Par la suite le réservoir est transvidé sous basse pression dans une centrifugeuse vertical opérant à basse vitesse, centrifugeuse d'un diamètre de six (6) pieds qui une fois remplie, entre en action à une vitesse de rotation autour de 330 révolutions par minutes pour séparer les liquides et les solides. Durant cette opération le liquide est récupéré et retourné à la fosse par gravité alors que le solide forme une boue sur la paroi. Un bras hydraulique localisé centralement par rapport à la paroi de la centrifugeuse vient racler pour le déloger le gâteau de boue déposé sur la paroi. Les débris sont aspirés par la pompe vers un réservoir d'entreposage. Finalement un jet d'eau pur finit le nettoyage. La basse vitesse de rotation permet l'installation de la centrifugeuse sur une plate-forme de camion car elle ne nécessite pas de structure de soutien lourde. Le temps de l'opération est considérablement réduit par rapport aux autres systèmes existants, car ne conservant que les solides, le véhicule possède une plus grande capacité de stockage des boues.
Patent CA-2076651-C (CA)
Inventor: MAEDA NAOMI
IPC: F23D14/24
Filed: 1990-12-25
Granted: 1997-07-08
Abstract: Un générateur de gaz à distillation sèche pour produire du gaz de distillation sèche est complètement séparé d'une section brûleur à gaz de combustion pour brûler parfaitement un combustible gaséifié, améliorant ainsi le plus possible les fonctions des éléments respectifs. Notamment, une partie d'un moyen d'approvisionnement en air du générateur de gaz à distillation sèche est améliorée, un réservoir d'enlèvement des impuretés est placé dans une partie intermédiaire reliant le générateur de gaz à distillation sèche et la section brûleur à gaz de combustion de façon à augmenter le degré de propreté du gaz de distillation sèche, et la section brûleur de gaz de combustion brûle les gaz de combustion avec (voir fig. I) de l'air soufflé par les ouvertures des première et deuxième parties d'approvisionnement en air dans un corps de brûleur cylindrique, lequel a été préchauffé, tout en brassant et mélangeant bien l'air avec les gaz de combustion de manière à réaliser la combustion la plus parfaite possible. L'appareil de combustion du gaz de distillation sèche, dans lequel un tuyau d'admission du gaz est raccordé à une prise de gaz de distillation sèche du générateur de gaz à distillation sèche, le réservoir d'enlèvement des impuretés est placé dans une partie intermédiaire du tuyau d'admission du gaz et la section brûleur de gaz est raccordée à la partie d'extrémité avant du tuyau d'admission du gaz, se caractérise par le fait que le générateur de gaz à distillation sèche est placé à la partie inférieure d'un four à réservoir où se trouvent aussi une chambre à air et une partie soufflage d'air communiquant avec la chambre à air, l'air ainsi fourni s'écoule le long d'une gorge de ventilation autour d'un chapeau de diffusion d'air et se répand doucement et uniformément sur toute la surface inférieure, la section brûleur de combustion est placée dans le corps de brûleur cylindrique avec une partie brûleur de préchauffage, et les première et deuxième parties d'approvisionnement en air, l'air soufflé par l'ouverture de la première partie d'approvisionnement en air est brassé et mélangé avec les gaz de combustion dans le corps du brûleur, de l'air préchauffé par une couche de réserve d'air, lequel est fourni par la deuxième partie d'approvisionnement en air, peut être brassé et mélangé avec les gaz de combustion à proximité d'une partie ouverture de combustion.
Patent CA-2087679-C (CA)
Title: The process for transport of agents across the skin and compositions and articles useful therein
Inventor: SAMOUR CARLOS M
IPC: A61K47/08
Filed: 1993-01-20
Granted: 2004-08-17
Abstract: New and improved method for the transdermal administration of agents is provided utilizing iontophoresis in conjunction with a water-insoluble, stratum corneum-lipid modifier. The lipid modifier may be used prior to iontophoresis or simultaneously therewith. The lipid modifier may be selected from a wide variety of moieties of the general formula R-X where R is a C5 to C28 alkyl or unsaturated alkyl and X is a member of the following: 1,3-dioxane; 1,3-dioxolane; lactam; morpholine; -COOH; -OH; -COOR'; -C-N(R')2; cyclo ethylene and propylene carbonates; -CONH2; -(CH2-CH2O)n H;    acetals, and hemiacetals; and wherein R' is lower alkyl (e.g., C1 to C3) and n is as integer of from 1 to 20. Optionally there may be present a polar, water-soluble chemical compound from the group of alcohols, glycols, lactams, dioxolanes, esters, ureas, morpholine and the like. Compositions and articles useful in the processes of the present invention are also provided.
Patent CA-2089779-C (CA)
Inventor: KOBLITZ KARL RUDOLF
IPC: H04N3/22
Filed: 1993-02-18
Granted: 2002-02-12
Abstract: In a vertical sawtooth generator of a D.C. coupled vertical deflection circuit, a vertical deflection amplifier generates a sawtooth signal. Magnitudes of the sawtooth signal in first and second instants of its trace period are determined in accordance with first and second D.C. signals, respectively. The first and second D.C. signals are adjusted during service to control the raster height and the raster centering such that while the raster height is adjusted, raster centering is not significantly affected, and vice versa.
Patent CA-2090234-C (CA)
Inventor: SORRENTINO JAMES VINCENT
IPC: A61K31/135
Filed: 1991-09-09
Granted: 1998-08-11
Abstract: Méthode pour obtenir un meilleur effet analgésique et/ou anti-inflammatoire par administration d'une quantité sûre et efficace d'une composition renfermant un dérivé de la naphtalène et une amine sympathomimétique.
Patent CA-2090980-C (CA)
Title: Ligating clip applier
Inventor: STEFANCHIK DAVID
IPC: A61B17/28
Filed: 1993-03-04
Granted: 2004-11-30
Abstract: A ligating clip applier mechanism having jaws disposed substantially perpendicular to the longitudinal axis of the mechanism. The jaws provide positive rearward retention of a ligating clip. Clips formed with the mechanism have substantially reduced apex gaps and clip gaps. The mechanism provides three degrees of freedom for manipulating tissue or blood vessels.
Patent CA-2091163-C (CA)
Inventor: ANDRUS PAUL G
IPC: C09D11/00
Filed: 1991-08-20
Granted: 2004-04-27
Abstract: A method for providing intelligible markings that are virtually invisible to the unaided eye on the surface of an article, comprises: applying onto the surface, by a jet printing process, a marking medium comprising a compatible liquid or viscous substance containing an organic laser dye (typically IR-125 in a concentration of about 0.005 to 0.05 percent by weight of the medium) that is poorly absorptive of radiation in the visible range of about 400 to 700 manometers, is highly absorptive of radiation in the near infrared range of at least about 750 manometers in wavelength (typically about 750 to 900 manometers), and fluoresces in response to radiation excitation in the said near infrared range to produce fluorescent radiation of wavelengths longer than the wavelength of the excitation (typically in the range of about 800 to 1100 manometers). Other useful laser dyes may comprise DTTCI, DNTTCI, HDITCI, DDTTCI, IR-140, DDCI-4, or IR-132.
Patent CA-2093590-C (CA)
Inventor: BARWICK ELVIN F
IPC: D03D37/00
Filed: 1993-04-07
Granted: 2001-08-21
Abstract: The present invention entails a method and apparatus for weaving an indicia such as a trademark, symbol or design into a tubular fabric. About a selected warp yarn segment of the tubular fabric, for each warp yarn increment, two warp yarns are actually directed into the loom, one warp yarn being a base yarn while the other warp yarn is an indicia forming yarn. The loom is provided with a warp yarn selector that for each pair of base and indicia forming yarns, it selects one and only one of the pair to be interwoven with a weft yarn. The non-selected yarn is essentially positioned such that it is not woven with the weft yarn and runs in a floating or unwoven fashion along the inside wall of the tubular fabric being woven. To provide a selected indicia interwoven in the tubular fabric, the selector is controlled in such a fashion that it causes indicia forming yarns to be woven in areas. calling for the indicia background and base warp yarns to be woven in areas that call for the base yarn as a background. As noted, in all cases the non-selected warp yarn of the pair will be floated to run along the inside wall of the tubular fabric.
Patent CA-2096505-C (CA)
Title: Exfoliant composition
Inventor: LEE ROBERT STANLEY
IPC: C11D3/60
Filed: 1993-05-18
Granted: 1999-09-21
Abstract: A viscous, liquid, skin washing composition comprising water, at least one surface active agent, abrasive particles and a viscosifier, CHARACTERISED IN THAT the viscosity of the composition is typically that of a shower gel, i.e. in the range 4000-8000 mPas measured at a shear rate of 10 s-1, the particles, preferably calcite, have a mean diameter of 40-400 micrometres and a bulk density of 1-4.
Patent CA-2098262-C (CA)
Title: Process for producing nickel hydroxide
Inventor: BAKSA STEPHEN JOSEPH
IPC: C01G53/04
Filed: 1993-06-11
Granted: 1997-10-21
Abstract: A process for producing nickel hydroxide from nickel powders, in which the feed nickel powder is directly converted in an aqueous solution containing nitrate and particulate nickel at least at room temperature and a pH in excess of about 6 into nickel hydroxide of a high density.  Nickel powders of high surface area, e.g. 0.4 m2/g or higher, typically produced by the thermal decomposition of nickel carbonyl, are particularly suitable as feed materials for this process.
Patent CA-2105176-C (CA)
Inventor: JOKINEN MIKKO
IPC: B07B1/15
Filed: 1992-02-12
Granted: 1997-05-13
Abstract: The invention relates to an apparatus for separating finer and coarser material fractions of bulk material from each other, especially for separating sawdust from wood chips, the apparatus comprising a plurality of successive rollers (2) rotating about parallel axes of rotation, the upper surfaces of the rollers providing a path for the mate-rial to be screened; at least one drive means for rotating the rollers (2); and a means for feeding the material to be screened to the infeed end of said path. There are radial and essentially axial grooves (5, 6) on the surface of the rollers (2), the grooves forming teeth (7) onto the surface of the rollers (2), and the teeth (7) of each roller (2) interdigi-tate with the radial grooves (5) of the adjacent roller (2), whereby the teeth (7) and radi-al grooves (5) form slots (8) between them for the particles of the material to be screened. With this construction it is possible to prevent the particles that are bigger than the grain size desired from passing through the screen.
Patent CA-2105818-C (CA)
Inventor: STRASSEL ALBERT
IPC: B32B15/082
Filed: 1993-09-09
Granted: 1998-05-12
Abstract: Flexible metal tube (3) sheathed with a layer of polyvinylidene fluoride (6), characterised in that a layer (5) of polyurethane thermoplastic elastomer is placed between the metal wall (3) and the polyvinylidene fluoride layer (6). This tube is particularly suitable for the exploitation of petroleum and gases.
Patent CA-2111528-C (CA)
Inventor: GOLUNSKI STANISLAW EDMUND
IPC: C01B32/50
Filed: 1993-12-15
Granted: 2004-06-08
Abstract: A catalyst composed of metal oxide particles among which are uniformly incorporated, in order to reduce the operating temperature of the catalyst, palladium particles.
Patent CA-2119343-C (CA)
Title: Procedure and apparatus for supplying, storing and displaying elevator control data
Inventor: NIEMINEN JUHA
IPC: B66B1/16
Filed: 1994-03-17
Granted: 1998-07-14
Abstract: The invention relates to a procedure for supplying and modifying the data required in the control system of an elevator and  for displaying the  instructions needed  for installation,  maintenance  and  adjustment  on  a  display comprised in the control system.  According to the invention, the parameter data of the elevator control system and the instructions for each person carrying out maintenance work are stored in a separate storage unit.  When modification or maintenance work is being carried out, a communication link is established between the storage unit and the data storage means of a control unit comprised in the control system, the data stored in the storage unit is read and saved in the control unit and the modifications and actions required by the data read from the storage unit are carried out in the control unit.
Patent CA-2119439-C (CA)
Title: Retruder
Inventor: ZIMMERMANN ANTON
IPC: B29C48/40
Filed: 1993-07-23
Granted: 2000-06-06
Abstract: A retruder (re-verse ex-truder) is provided herein. The retruder is for the continuous mixing and kneading of media under increased pressure and includes a drive, at least one casing, and at least two counterrotating intermeshing reversing screws. Such reversing screws move the medium in the conveying direction and in the reverse direction. In this way, the medium is transported from a loading point to a discharge point of the casing, which is disposed vertically to the conveying direction.
Patent CA-2123617-C (CA)
Title: Slat block and guide track apparatus for rolling truck bed cover
Inventor: BERNARDO RICHARD GREGORY
IPC: B62D33/04
Filed: 1994-05-16
Granted: 1998-01-06
Abstract: A  water  resistant,  retractable  slatted  rolling  truck utility bed cover for jam-free and noise-free operation.  A slat end block is permanently attached to each slat end, the slats being hinged in a side-by-side array forming the cover body. The  blocks  reduce vibration,  eliminate thumping  noise  and improve the sliding action of the cover body by acting as an end bearing surface.  The bottom surface of each slat block includes an arcuate curvature along the length thereof that, when used in conjunction with  sloping passageway  entrance of  the guide tracks, provides a simplified non-jam closure.  Each slat block includes grooves to divert water to the guide tracks away from the truck bed interior.
Patent CA-2126854-C (CA)
Inventor: HARFORD JACK RUDOLPH
IPC: H04N5/44
Filed: 1993-10-30
Granted: 1999-12-28
Abstract: In a television receiver a downconverter responding to a selected television signal respectively supplies its first and second output signals as the input signals of first and second IF amplifiers, respectively. The downconverter includes a local oscillator for generating oscillations at a frequency controlled in response to the automatic fine tuning (AFT) signal. The first IF amplifier includes a first adjacent-channel sound carrier trap, in consequence whereof the first-IF-amplifier response is substantially reduced for the downconverted picture carrier, and an in-channel sound carrier trap.      Responsive to the first-IF-amplifier response, a video detector generates a composite video signal in which sound beats are suppressed to relatively low level by the first adjacent-channel sound carrier trap. A second IF amplifier includes a second adjacent-channel sound carrier trap. The second-IF-amplifier response, from which in-channel sound carrier is not trapped, is not as much reduced for the downconverted picture carrier by the second adjacent-channel sound carrier trap as the first-IF-amplifier response is by the first adjacent-channel sound carrier trap. From the second-IF-amplifier response, intercarrier detection circuitry detects an intercarrier-sound-IF response, which is amplified by an intercarrier sound-IF amplifier and then detected by an FM sound detector. Responsive to the second-IF-amplifier response, an automatic fine tuning (AFT) detector generates the AFT signal used to control the frequency of the oscillations generated by the local oscillator that the downconverter includes.
Patent CA-2134479-C (CA)
Title: Laser treatment
Inventor: WILSON MICHAEL
IPC: A61N5/06
Filed: 1993-04-30
Granted: 2007-09-04
Abstract: A method of disinfecting or sterilising tissues of the oral cavity or a wound or lesion in the oral cavity comprises applying a photosensitising compound to said tissues, wound or lesion and irradiating said tissues, wound or lesion with laser light at a wavelength absorbed by said photosensitising compound.
Patent CA-2147860-C (CA)
Inventor: WAGSTAFF FRANK EVERTON
IPC: B22D11/041
Filed: 1993-10-29
Granted: 2004-05-04
Abstract: The annular body of the mold (38) in the unit has an annular case (68) at the bottom. The case is thick axially of the mold, forming the greater portion of the axial length of the mold at the outer periphery at the top, the case has an annular plate forming flanges (74) overhanging the case and enabling the unit to be lowered into a casting table, and supported on the table at the flanges. The case defines the lower cavity opening, and the coolant outlet (58). The case is monolithic, and has an annular sump (75) at the tip covered by the plate (66) forming a coolant chamber. A  graphite casting ring (152) may be circumposed about the inner periphery lining the upper end portion of the cavity; and a refractory hot top ring (118) may be circumposed about the upper end opening of the cavity.
Patent CA-2150735-C (CA)
Title: Modulated bias unit for rotary drilling
Inventor: THORP RICHARD EDWARD
IPC: E21B7/06
Filed: 1995-06-01
Granted: 2007-04-03
Abstract: A modulated bias unit, for controlling the direction of drilling of a rotary drill bit when drilling boreholes in subsurface formations, comprises a number of hydraulic actuators spaced apart around the periphery of the unit. Each actuator comprises a movable thrust member which is hydraulically displaceable outwardly and a pivotally mounted formation-engaging pad which overlies the thrust member. An inlet passage supplies fluid under pressure to the chamber, and an outlet passage delivers fluid from the chamber to a lower pressure zone. A selector control valve modulates the fluid pressure supplied to each actuator in synchronism with rotation of the drill bit so that, as the drill bit rotates, each pad is displaced outwardly at the same selected rotational position so as to bias the drill bit laterally and thus control the direction of drilling. The outlet passage from the chamber passes through the thrust member so as to wash the region where the formation-engaging pad overlies the thrust member as the fluid flows to the annulus between the unit and the borehole.
Patent CA-2153682-C (CA)
Inventor: RAPALA BRYAN
IPC: H04B1/707
Filed: 1994-10-25
Granted: 1999-03-23
Abstract: The present invention provides a downconverter method and apparatus for downconverting a multiphase modulated signal. The downconverter can be implemented in a multi-phase receiver such as a quadrature receiver. An analog-to-digital converter (103) converts an intermediate frequency signal to a digital signal at a sampling rate. A Hilbert transformation filter (104) and a delay element (105) connected in parallel provide respective passband quadrature and in-phase components of the digital signal. A digital translator (107) alters the passband quadrature and in-phase components based on a predetermined pattern to provide a baseband quadrature signal and a baseband in-phase signal. The digital translator (107) can be a pseudorandom sequence demodulator for demodulating a code division multiple access (CDMA) signal.  Various types of DC estimation can also be provided in addition to automatic gain control.
Patent CA-2154583-C (CA)
Title: Tool for extracting broken bolts and the like
Inventor: DESAULNIERS DONALD J
IPC: B25B13/50
Filed: 1993-10-07
Granted: 2005-03-15
Abstract: The tool (10) includes a central section (12) having a left-hand drill bit section (16) at one end and an extraction section (20) at the other. The extraction section (20) tapers toward its distal end and is formed with left-hand threads (22) on the exterior of the taper. The distal end is chamfered (24) at an angle more abrupt than the taper so that the chamfer (24) intercepts the threads (22) and so that the threads (22) rise outward in a short axial distance and are able to bite into the margins of a shallow hole drilled in the bolt remnant by the bit section (16).
Patent CA-2155012-C (CA)
Title: Excavating tooth with a clad resilient locking pin
Inventor: JONES LARREN F
IPC: E02F9/28
Filed: 1994-02-02
Granted: 1999-05-11
Abstract: An excavating tooth  (10)  for use on a wide variety of excavating equipment is comprised of a point (12), an adapter (14) and a sandwich lock pin (16).  The pin includes a rigid casing (54)  and a plurality of independently depressible protrusions (58),  (59).  One of the protrusions (58) resiliently engages a face  (22)  defined on the nose of the adapter to tighten the connection of the point on the nose.  One other of the protrusions (59) extends into an opening (50) defined by the point to secure the lock pin to the point.  With respect to an external locking tooth, the opening (50) defined in the point includes a pair of bosses  (155a),  (155b)  which define a reduced portion of the opening.  The reduced portion matingly receives and holds the ends of the rigid casing of the pin.  The independent locking of the pin and the mating receipt of the casing in the point opening reduces the likelihood of pin loss due to overloading of the elastomeric material, wearing of the components or jacking forces.
Patent CA-2158115-C (CA)
Inventor: MALEK CHARLES JOHN
IPC: H04B1/713
Filed: 1995-09-12
Granted: 1999-07-13
Abstract: A method and apparatus increases spectrum efficiency in a wireless communication system having base stations which may be positioned to operate within range of one another. The method and apparatus eliminates the requirement for a base station to periodically transmit to maintain synchronization with an associated handset (504). The handset effectively assumes the role of a base station when making a call (508).      The handset will synchronize with other handset traffic or another base station which is within range (506). The handset will then page the base station (510). Eliminating the requirement that the base station repeatedly transmit a signal to maintain sync with a handset significantly increases the available spectrum allocation for providing communication.      Reversing the role of a handset also enables handset-to-handset communication independent of the base station (808).
Patent CA-2158601-C (CA)
Inventor: BETTENHAUSEN ROGER V
IPC: B65B11/04
Filed: 1995-09-19
Granted: 2000-12-05
Abstract: Apparatus for tightly wrapping a package such as disposed on a pallet in a thin film such as for shipping or storage includes a rotating deck adapted to receive the pallet and package to be wrapped. The deck is directly coupled to and supported by a gear box driven by an electric motor. The apparatus further includes a film wrap supply in the form of a roll which lets out the film for wrapping around the package as the deck and package rotate. A manually adjustable tensioner allows for adjusting the stretch of the wrapping film on the package, while the film wrap supply may be adjusted vertically to permit wrapping the package over its entire vertical dimension regardless of the width of the roll of film wrap. A foot control allows an operator of the apparatus to rotate the deck and the package being wrapped while vertically moving the film wrap supply roll to fully enclose the package within the wrapping film.