baber/WOPTO huggingface dataset:
Patent CA-2088116-C (CA)
Title: Method of preparing branched cyclodextrin
Inventor: HARA KOJI
IPC: C12P19/16
Filed: 1993-01-26
Granted: 2005-07-05
Abstract: Disclosed is a method of producing a branched cyclodextrin where a liquid containing a cyclodextrin and a branched oligosaccharide is treated with a debranching enzyme. By the method, a branched cyclodextrin having a maltosyl or maltotriosyl group as bonded to the glucose of a CD molecule via an .alpha. -1,6 bond is obtained efficiently.
Patent CA-2089233-C (CA)
Title: Cement admixture composition
Inventor: KOYATA HIDEO
IPC: C04B24/26
Filed: 1993-02-10
Granted: 1997-12-30
Abstract: Cement admixture compositions formed from alkenyl ether/maleic anhydride copolymers having specific molecular structures have been found to impart a high degree of slump loss over a sustained period of time while not causing any significant set retardation of the treated cement based composition.
Patent CA-2092656-C (CA)
Title: Motion transducer
Inventor: CARSCADDEN IAN ANDREW
IPC: G01B7/14
Filed: 1993-03-12
Granted: 1996-12-24
Abstract: A motion transducer for measuring the displacement of, for example, shafts in gas control modules. The shaft 14 carries two magnets 10, 12 each of hollow cylindrical form, the magnet 10 presenting a south pole everywhere over its external cylindrical face and the magnet 12 presenting a north pole everywhere over its external cylindrical face.  The shaft 14 moves vertically past an array of Hall-effect sensors 18-24 to produce sinusoidal voltage outputs at the sensors. The outputs are combined in a summing amplifier (Figure 3). The combined output is not affected by rotation of the shaft and magnets nor by tilting or sideways displacement of the axis 16 of the shaft. That is because no matter what the rotational position is the sensors are always subjected to the same magnetic field and, if the shaft tilts or is displaced sideways an increased field at some sensors is compensated by a decreased field at others.
Patent CA-2094959-C (CA)
Title: Pivot mechanism for reel mower cutting units
Inventor: CURRY ROGER W
IPC: A01D75/30
Filed: 1993-04-27
Granted: 1995-04-18
Abstract: A mechanism coupling a yoke and cutting unit to a push arm, and having an upright steering pivot mechanism which establishes a relatively large effective steering lever arm for decreasing scuffing of the turf by the rollers of the cutting units, and an inclined pivot mechanism having an axis which is directed generally toward the cutting unit to decrease the effective lever arm between the rollers and the pivot axis and thereby reduce turf scuffing during execution of turns during mowing operations.
Patent CA-2097125-C (CA)
Title: Head-up display apparatus
Inventor: YAMADA SATOSHI
IPC: G02B27/00
Filed: 1993-05-27
Granted: 1999-06-15
Abstract: A head-up display apparatus includes a display device for displaying various items of information and a combiner provided in front of an eye of a viewer in a visual field of the viewer, which combiner allows an outside image lying in the visual field to be passed through it and which reflects an image displayed by the display device so that the outside image passed (transmitted) through the combiner and the displayed image reflected thereby  are integrated in the same visual field of the viewer, the combiner being configured to be of a substantially spherical shape with a concave surface facing the viewer, and the display device being provided in such a position that a display can be directly observable from the outside through the combiner.
Patent CA-2097990-C (CA)
Title: Procede et installation de production combinee d'ammoniac de synthese et d'hydrogene pur
Inventor: FUENTES FRANCOIS
IPC: C01B3/56
Filed: 1993-06-08
Granted: 2003-08-12
Abstract: L'invention concerne la production combinée de gaz de synthèse d'ammoniac et d' hydrogène pur. On prélève un débit de gaz de synthèse que l'on traite d'abord dans une unité de perméation avec renvoi du gaz non perméé, alor que le perméat est traité par adsorption, ce qui permet de produire de l'hydrogène très pur. Le procédé a un très bon rendement  énergétique.
Patent CA-2100499-C (CA)
Inventor: BETTS CHARLES A
IPC: F16K17/04
Filed: 1993-07-14
Granted: 1998-05-05
Abstract: A device relieves a positive pressure difference between the inside of a vessel and the outside of the vessel through an opening in the vessel. The device has a base portion a cap portion and a biasing means. The base portion has a means for mounting the device in the opening; a cap seat providing an orifice through which the pressure difference may be relieved; and a generally hollow body portion attached to the cap seat and extending concentrically with the cap seat into the vessel. The cap portion has a cap having an external surface with a diameter larger than the diameter of the cap seat to retain the cap external to the cap seat in sealing relationship; a rod mounted concentrically and normal to the internal surface at one end the other end extending into the body portion and terminating in a piston with a shoulder the piston being in concentric sliding engagement within the body portion. The biasing means has a compression spring acting between the interior of the body portion and the piston shoulder to urge the cap, into sealing relationship with the cap seat; and a damping means with the pistoneffectively dividing the body portion into first and second chambers a channel communicating one chamber to the other and a fluid in the chambers so movement of the piston in either direction requires a portion of the fluid to pass through the channel from one chamber to the other.
Patent CA-2100572-C (CA)
Title: Device for causing an untuned structure to vibrate ultrasonically
Inventor: DUBRUQUE DOMINIQUE
IPC: B06B3/00
Filed: 1992-01-16
Granted: 2002-12-17
Abstract: PCT No. PCT/FR92/00033 Sec. 371 Date Jul. 19, 1993 Sec. 102(e) Date Jul. 19, 1993 PCT Filed Jan. 16, 1992 PCT Pub. No. WO92/12807 PCT Pub. Date Aug. 6, 1992.The present invention relates to the vibration of an untuned structure by means of an ultrasound converter. The main but not unique purpose is to cause a filtering cloth, a perforated metal sheet or a screening mesh to vibrate in order to improve the flow rate in the filtering or sieving process, with equal surface energy, without clogging the mesh or harming the product being processed. The device according to the invention is characterized in that it comprises at least one electro-acoustic converter (12) ridigly fixed to said structure (10) by means of metallic securing elements (14) tuned to the frequency of the converter, the links with the structure being in a maximum region of amplitude (V)j of said securing elements and resonance of the assembly being provided by a nut or any metallic unit tuned as an integral multiple of a half wave length.
Patent CA-2104955-C (CA)
Inventor: YAGI KAZUO
IPC: B01D39/16
Filed: 1992-12-28
Granted: 1998-08-25
Abstract: Disclosed are biaxially oriented films of high molecular weight polyethylene which have a fibril structure and are excellent in gas permeability, tensile modulus and tensile strength and in which the coefficient of static friction and the coefficient of kinetic friction are both 1.0 or less. The biaxially oriented films may be obtained by removing by extraction a hydrocarbon plasticizer from a sheet formed from a high molecular weight polyethylene and the hydrocarbon plasticizer, stretching the resulting sheet to obtain an oriented film having a specific surface area of 70 m2/g or more and a fibril structure, and heating the oriented film under a standard length constraint, thereby reducing the oriented film in specific surface area by 20 m2/g or more. The biaxially oriented films may be used as films for lamination products, filters, or may be useful as packaging materials for moisture absorbers or the like.
Patent CA-2105778-C (CA)
Inventor: SCHMITTHAEUSLER ROLAND
IPC: A61L9/015
Filed: 1992-03-09
Granted: 2004-01-27
Abstract: Procédé de décontamination ou de stérilisation d'une enceinte étanche sous vide notamment après un cycle de lyophilisation dans laquelle se trouvent un ou plusieurs récipients contenan t des micro-organismes éventuellement pathogènes et/ou des produits dangereux, caractérisé en ce que avant l'ouverture de l'enceinte étanche pour prélever ou ou les récipients, on introduit dans l'enceinte un gaz ou un liquide susceptible de se vaporiser dans les conditions régnant dans l'enceinte, et présentant des propriétés biocides à l'égard du micro-organisme et/ou neutralisantes à l'égard du produit dangereux et dispositif d'injection et de contrôle des mélanges décontaminants permettant la mise en oeuvre du procédé décrit. Le procédé est également utile pour stériliser une enceinte telle qu'un lyophilisateur avant introduction des produits. L'invention concerne également un dispositif pour mettre en oeuvre le procédé.
Patent CA-2108663-C (CA)
Title: Procede et dispositif de filtrage pour la reduction des preechos d'un signal audio-numerique
Inventor: MAHIEUX YANNICK
IPC: G10L21/02
Filed: 1993-02-18
Granted: 2002-02-05
Abstract: A method and a system for processing digital audio signal pre-echoes. Sample s x(n) are frequency transform block-coded as coefficients y(k) then transmitted as coefficients Cy(k), decoded as coefficients y'(k), and reverse frequency transform pro- cessed to recreate the original post-transmission signal x'(n). During the coding process and after the coding of coefficients for the transmission of coded coefficients Cy(k), said coded coefficients Cy(k) are decoded and reverse frequency transform pro- cessed to recreate the decoded signal x"(n), which is substantially identica l to signal x'(n), and the optimal filtering mask is deter- mined in order to recreate the original signal x(n). The coded coefficients Cy(k) and the gain and filtering mask parameters are simultaneousiy transmitted to the decoding process. Suitable filtering of th e original post-transmission signal x'(n) is performed during the decoding process in order to recreate the original post- transmission and post-processing signal xt(n). The method and system may be used in processing digital audio signais in the phonogram or videogram industries.   L'invention concerne un procédé et un système de traitement des prééchos d'u n signal audio-numérique. Les échantillons x(n) sont codés par blocs par transformée fréquentielle en coefficients y(k), puis transmis en coefficients Cy(k), dé- codés en coefficients y'(k) puis traités par transformée fréquentielle inver se pour reconstituer le signal d'origine après transmis- sion x'(n). Au cours du processus de codage, après codage des coefficients pour transmission des coefficients codés Cy(k), une étape de décodage de ces coefficients codés Cy(k) et de traitement par transformée fréquentielle inverse pour reconstituer le si- gnal décodé x"(n), sensiblement identique au signal x'(n), et le gabarit optimal de filtrage est déterminé pour reconstituer le signal d'origine x(n). Les coefficients codés Cy(k) et les paramètres de gain et de  gabarit de filtrage sont transmis simultanément vers 1e décodage. Le filtrage adapté du signal d'origine après transmission et traitement xt(n). Application au traitement des signaux audio-numériques dans l'industrie des phonogrammes ou vidéogrammes.
Patent CA-2113331-C (CA)
Inventor: RABITSCH BENJAMIN F
IPC: H01H35/34
Filed: 1994-01-12
Granted: 2006-01-03
Abstract: A reversing switch and more particularly a diaphragm operated electrical polarity reversing switch which has general utility but in the application the reversing switch is disclosed for use in combination with a vehicle mounted spray device including a discharge nozzle which may be used for applying chemicals, liquid fertilizers and other liquids such as when applying such materials alongside of roadways to effectively apply liquid throughout the width of the road right-of-way in which spray nozzles are, mounted adjustably on a pivotal arm-type support assembly at the right front of a vehicle and a control arrangement is oriented in the cab of the vehicle to enable the vehicle operator to control the spray apparatus. A diaphragm is communicated with a pressurized supply line with the diaphragm being responsive to pressure in the supply line together with a control valve to direct flow to one of a plurality of different sized nozzles in order to maintain a constant pressure of liquid at each nozzle with any temporary variation in the pressure caused by switching from one nozzle to another being promptly corrected thus providing a constant flow rate and constant width of discharge of liquid from the nozzle.
Patent CA-2113665-C (CA)
Inventor: CONRAD HANS-ROLF
IPC: F26B7/00
Filed: 1994-01-18
Granted: 1997-11-18
Abstract: A calender for material webs of paper or the like comprises at least one pressing gap (3) and at least one heatable or coolable tempering roller  (4).   A charging device  (12) electrostatically  charges  the  material web  (1)  moving towards the tempering roller  (4).   As a  result,  heat transfer between  tempering  roller  and material  web  is improved.
Patent CA-2115517-C (CA)
Title: Hockey goaltender's pad with flexible outside roll
Inventor: SHIKATANI BRIAN H
IPC: A41D13/06
Filed: 1994-02-11
Granted: 2003-10-21
Abstract: A hockey goaltender's pad is described, in which the upper segment of each side roll is sewn with darts which facilitate flexing of the rolls. As the knee is bent, the darts open, thus in effect increasing the length of the outside of the roll in response to the tensile load there, so that the outside of the roll does not restrict the flexing. As the leg is straightened again, the darts close.
Patent CA-2119304-C (CA)
Title: Method and device for regenerating voltage supply elements in the form of primary elements
Inventor: ROENISCH WERNER
IPC: H02J7/02
Filed: 1994-03-17
Granted: 1996-09-24
Abstract: A method of regenerating a voltage supply element in the form of a primary element includes the step of charging the primary element with electric energy for a predetermined time period.          The step of charging the primary element with electric energy includes the step of supplying periodically voltage impulses of a predetermined amplitude and a predetermined impulse duration.          The voltage impulses should preferably have  a short  ascending  and/or  descending  time.    The device for regenerating a voltage supply in the form of a primary element by charging the primary element with electric energy has a low resistance dc voltage source and a switching device having an input and an output for connecting the switching device to a pole of the primary element to be regenerated.   The output delivers a sequence of voltage impulses.  The low resistance dc voltage source  is  connected to the  input.   A  timing generator is connected to the switching device for timing the switching device.  The switching device has  an  adjusting  member  for  adjusting  the amplitude of the voltage impulses.
Patent CA-2122115-C (CA)
Inventor: MASTERS RONALD A
IPC: C11D1/90
Filed: 1994-04-25
Granted: 1999-01-05
Abstract: The present invention relates to an aqueous,  liquid,  hard surface cleaning compositions containing amphoteric/zwitterionic detergent  surfactant,   specific  anionic  surfactant,   cleaning solvent, optional nonionic detergent surfactant, and buffer.  The buffers can be either alkaline or acid for improved cleaning of acid sensitive soils like soap scum and/or hard water deposits. The  presence  of  the  specific  anionic  surfactant  permits  the inclusion of more of relatively hydrophobic materials like cleaning solvents, which provide improved cleaning, especially under acid conditions where some greasy/oily soils are more difficult to remove.
Patent CA-2129693-C (CA)
Inventor: JARDINIER PIERRE
IPC: F24F11/00
Filed: 1994-08-08
Granted: 2000-02-01
Abstract: Ce procédé consiste à fournir aux différentes pièces du local de l'air sous basse pression stable, à l'aide d'un ventilateur à relativement haute pression, à alimenter le ventilateur, d'une part, à t'aide d'air neuf et, d'autre part, à l'aide d'air recyclé, c'est-à-dire ayant été entraîné par le ventilateur et non admis dans le local, et à régler les proportions respectives d'air neuf et d'air recyclé, de telle sorte que la proportion d'air neuf augmente et la proportion d'air recyclé diminue, lorsque les besoins en ventilation augmentent, et que la proportion d'air neuf diminue et la proportion d'air recyclé augmente, lorsque les besoins en ventilation diminuent, de façon que le débit du ventilateur sait maintenu presque constant. Application aux installations de ventilation mécanique contrôlée de locaux.
Patent CA-2129985-C (CA)
Title: Automatic dispensing apparatus
Inventor: REINHARD ROGER A
IPC: D06F39/02
Filed: 1993-02-09
Granted: 1998-04-28
Abstract: A dispensing apparatus (22) for automatically dispensing detergent (12) into a laundry machine (14). The electrical current drawn by the laundry machine is monitored by a detecting device (42) to detect when the electrical current exceeds a predetermined threshold current. When the electrical current exceeds the threshold current, the detecting device transmits a signal indicating that detergent should be conveyed from the detergent supply to the washtub of the laundry machine by a conveying device (40). The signal is delayed for a predetermined period of time by a delay timer (50). After the delay, the conveying device is controlled to convey the detergent. If the washing process is interrupted for less than a predetermined period of time, a dwell timer (66) prevents multiple conveyance (64) of detergent into the washtub (20).
Patent CA-2134510-C (CA)
Inventor: PLIS MARK J
IPC: G01R21/133
Filed: 1994-10-27
Granted: 2003-01-28
Abstract: A method and apparatus for executing a command in a number of electrical metering devices of a power distribution system provides each metering device with a command having a predetermined execution time and subsequently executes the command in each of the metering devices once the present time value equals or exceeds the predetermined execution time. Each electrical metering device includes a clock for providing the present time value as well as a memory device for receiving and storing the command. Each electrical metering device also includes at least one controller or microprocessor for monitoring or comparing the present time value with the predetermined execution time of the stored command and for executing the stored command once the present time value is at least as large as the predetermined execution time. A command may thus be provided to. each electrical metering device of a power distribution system at various prior arbitrary times. The command may subsequentially be executed simultaneously in each of the electrical metering devices at the predetermined execution time.
Patent CA-2134645-C (CA)
Title: Method and apparatus for designing and editing a distribution system for a building
Inventor: NORMANN LINDA M
IPC: G06F17/50
Filed: 1993-04-28
Granted: 2000-04-18
Abstract: A method and apparatus for designing and editing a distribution system for a building is disclosed. Elements of such distribution systems and requirements of relevant standard are stored in a computer's memory (20-23,33). Building parameters (2) are entered into a computer manually (1). The users identify the standard to be followed and the element to be optimized. The system divides the building into sections (4) as appropriate to the user identified standard. The system then computes layout needed to comply with the selected standard. The layout is routed (18-33) and sized to avoid building structural members, yet the elements of the layout are optimized for size and length. The apparatus prints out a hard copy of the design layout which can include an elements listing (120-129) needed to complete the system. The design layout as well as the building parameters can be edited. The edited layout is checked for compliance with the identified standard as well as avoidance of building parameters.
Patent CA-2137295-C (CA)
Inventor: SLICKER JAMES MELVIN
IPC: B60W10/10
Filed: 1994-12-05
Granted: 2000-05-23
Abstract: An automatic clutch controller for a vehicle that reduces the oscillatory response to clutch engagement. The automatic clutch controller receives inputs from an engine speed sensor and a transmission input speed sensor and develops a clutch actuation signal controlling a clutch actuator from disengaged to fully engaged. The clutch engagement signal at least partially engages the friction clutch in a manner to cause the measured transmission input speed to asymptotically approach engine speed employing,an approximate inverse model of this oscillatory response.      The automatic clutch controller preferably includes a slip integral function and a differential engine speed function, which together adaptively adjust clutch engagement corresponding to vehicle loading. The automatic clutch controller includes a prefilter and a compensator constructed to reduce the need for detailed particularization for individual vehicles or vehicle models. A lag compensation function in the compensator adds robustness to the system by increasing low frequency gain. A freeze function suspends operation of the slip integral , the prefilter and the compensator during engine deceleration or when throttle position is high and engine speed is low, to moderate or stop clutch advance to prevent engine overloading.
Patent CA-2137554-C (CA)
Title: Fabric with reversible enhanced thermal properties
Inventor: BRYANT YVONNE G
IPC: D06N3/00
Filed: 1993-05-28
Granted: 2005-03-22
Abstract: A coating (10) is adapted to be applied to a substrate (50) such as a fabric in order to enhance the thermal characteristics thereof. The coating includes a polymer binder (20) in which are dispersed integral and leak-resistant microcapsules (30) filled with phase change material (40) or plastic crystals that have specific thermal properties at predetermined temperatures.
Patent CA-2139794-C (CA)
Title: Frame pixel data generation
Inventor: GOVE ROBERT JOHN
IPC: H04N5/74
Filed: 1995-01-09
Granted: 2006-11-07
Abstract: A pixel generator and method of generating pixel data for creating frames of video pixel data from fields of input video pixel data. The pixel processor 16 includes a field buffer circuit 36 that stores a plurality of fields of input video pixel data. Coupled to the field buffer are a feature detector 38 and a pixel generator 40. The feature detector 38 generates one or more feature magnitude signals based upon one or more of the fields of input video pixel data. The pixel generator 40 has at least two logic circuits for generating at least two different intermediate pixel data values based on the input pixel data. Coupled to feature detector 38 is feature analyzer 42 that selects a feature weight corresponding to each intermediate pixel data value, the weight being based upon the value of the feature magnitude signals. Coupled to feature analyzer 42 and pixel generator 40, is a pixel averager 44 that generates output pixel data based upon a weighted average of the intermediate pixel data values.
Patent CA-2141662-C (CA)
Inventor: GUERET JEAN-LOUIS
IPC: B05C17/00
Filed: 1995-02-01
Granted: 2006-05-30
Abstract: Le dispositif (D) pour distribuer un produit (P) liquide ou pulvérulent comprend, d'une part, un récipient (1) pour le produit, muni d'un col (2) et, d'autre part, un bouchon (4) pour fermer le col du récipient ; le bouchon (4) est équipé d'un organe applicateur (7, 8) plongeant dans le récipient lorsque le bouchon est en position de fermeture. Le col (2) du récipient est muni d'une poche (10) en matière élastique déformable dans laquelle vient se loger l'organe applicate ur (7, 8) lorsque le bouchon (4) est fixé sur le col du récipient, cette poche (10) étant munie d'au moins une fente (12) sensiblement fermée au repos mais propre à s'ouvrir lorsque la paroi (10) de la poche est soumise à un effort de poussé e dû à l'organe applicateur (7, 8) lorsque le bouchon est en position normale de fermeture (Figure 1).