baber/WOPTO huggingface dataset:
Patent CA-2095314-C (CA)
Title: Hydraulic servo valve with controlled disengagement feature
Inventor: SMIETANA JAMES M
IPC: F15B13/043
Filed: 1993-04-30
Granted: 1998-04-07
Abstract: A hydraulic servo valve arrangement of the type having a hydraulic amplifier followed by a spool type servo valve second stage, includes a deceleration control mechanism.  A spindle-type positioner has first and second positions which respectively permit and block flow of fluid from the first amplifier stage to the first end of the second stage spool.  The hydraulic actuator urges the positioner into its first position, and a spring urges the positioner into a second or closed position in the event a failure mode is encountered.   A solenoid valve has a communicating port coupled through a dropping orifice to a source of fluid supply and a second port coupled to drain, such that in an actuated condition, input port is at high pressure but in an unactuated condition the input port drops to low pressure.  Relief channels and in fluid communication with the one end of the spool member have metered orifices to limit the flow of hydraulic fluid when the spool transits to its null position.  Relief passages in communication with the positioner piston have respective transit and null override orifices which achieve smooth movement of the positioner to push the spool member to its set position.
Patent CA-2101295-C (CA)
Inventor: TEMESVARY LOUIS
IPC: A47K10/38
Filed: 1993-07-26
Granted: 1996-02-06
Abstract: An adjustable dispenser nozzle apparatus for a paper towel container of either rolled or folded towels.  The apparatus comprises a base, an adjustable fixture and an inner sleeve.  The base includes a plurality of extensions separated by slits.  The fixture is adjustable and as it is further threaded onto the base the extensions of the base become narrowed, resulting in a smaller exit aperture for the dispenser nozzle.  Furthermore, the bottom part of the base, which is comprised of a plurality of extensions, as well as the bottom part of the inner sleeve, have sharp edges.  Thus, providing a suitable surface upon which the dispensed towel may be torn.
Patent CA-2101744-C (CA)
Title: Apparatus for use in the manufacture of valves for hydraulic power steering gears
Inventor: BISHOP ARTHUR ERNEST
IPC: G01B13/18
Filed: 1991-10-28
Granted: 1997-03-18
Abstract: An apparatus for measuring and recording the angular posi-tion of the edges of axially extending grooves (18) disposed on an inside cylindrical bore surface or outside cylindrical surface of a workpiece (10) characterized in that the apparatus includes a shoe (82), pressed into intimate contact with the surface over a zone (85) of the shoe, the zone (85) incorporating an orifice (84), extending away from the zone (85) of intimate contact to a plenum chamber (88, 97), to which fluid is supplied relative rotation between the workpiece (10) and the shoe (82) being produced, a measuring de-vice (not shown) to measure the degree of restriction to flow of fluid from the orifice (84) as the edges traverse the orifice (84) during rel-ative rotation, an angular positional measurement device (not shown) to measure relative rotation, such that relative angular posi-tions of the workpiece are recorded at each relative rotational posi-tion corresponding to a predetermined degree of restriction of the orifice (84) as successive edges of the grooves traverse the orifice (84).
Patent CA-2103525-C (CA)
Title: Process for manufacturing a tire and machine for making a tire tread reinforcement
Inventor: DEBROCHE CLAUDE
IPC: B29D30/70
Filed: 1993-08-06
Granted: 2003-10-21
Abstract: The laying of lengths 40 of cord (yarn, wire) 4 is provided for by a laying hose 30 which receives the cord, with its inlet arranged opposite the outlet of a wire dispenser whose cutter 85 cuts the cord just upstream of the laying hose 30. A laying head 32 is arranged at the end of the laying hose 30, which head moves transversely along the support 1 onto which the reinforcement is built. The angle of lay of the cord is adjusted by judiciously coordinating the transverse speed of movement of the head 32 with the speed of rotation of the support 1. <IMAGE>
Patent CA-2103980-C (CA)
Title: Single digital modem encoder to generate a twin qam signal for advanced digital television (adtv)
Inventor: WANG TIAN JUN
IPC: H04N7/24
Filed: 1993-08-12
Granted: 2004-02-10
Abstract: In a high definition television signal encoder, high priority and standard priority digital data are each separated into quadrature I and Q components, spectrally shaped by digital filtering, and time division multiplexed to produce respective quadrature amplitude modulated signals of the 32-QAM type.  The high priority QAM signal and the standard priority QAM signal exhibit different bandwidths and carrier frequencies. The high priority and standard priority QAM signals are combined in digital form to produce a prioritized dual 32-QAM digital signal before being conveyed to a single analog-to-digital converter and analog RF transmission networks.
Patent CA-2104315-C (CA)
Title: Procede de fabrication d'assemblages composes de deux pieces collees et comportant une etape de formage
Inventor: BLOT PHILIPPE YANNICK ANDRE
IPC: B21D26/055
Filed: 1993-08-18
Granted: 2002-05-07
Abstract: Procédé de fabrication d'assemblages composés de deux pièces formées et collées. Les deux pièces (1 et 3) sont disposées sur un poinçon et une matrice (2 et 4) maintenus provisoirement écartés pour introduire une pression suffisante permettant de les former à chaud. Le poinçon et la matrice sont ensuite rapprochés pour que les surfaces préalablement collées se trouvent face à face et se touchent. Un avantage essentiel est qu'aucune intervention manuelle n'est nécessaire.
Patent CA-2105787-C (CA)
Title: Slotted drain
Inventor: SCHLUTER JAMES C
IPC: E01C11/22
Filed: 1993-09-09
Granted: 1997-04-29
Abstract: A slotted drain includes a drain pipe having an elongated narrow slot extending lengthwise along its top surface.  A lower grate is rigidly secured to the elongated slot and is formed by a pair of bearing plates connected to one another by a series of spacer plates and connected to the edges of the elongated slot.  The lower grate is connected to an upper grate initially in an adjustable manner such that the height and angle of the upper grate may be adjusted with respect to the lower grate and the drain pipe.  The height of the upper grate with respect to the drain pipe is dependent upon the intended depth at which the drain pipe will be situated and the angle of the upper grate may, for example, correspond to the drainage slope at which the drain pipe will be set.  Once the upper grate has been adjusted to the desired height and angle, the upper grate is rigidly secured to the lower grate.  In a first preferred embodiment the lower grate telescopically receives the upper grate and in a second preferred embodiment the upper and lower grates are connected to each other by a pair of intermediate bearing plates.
Patent CA-2110368-C (CA)
Inventor: LINDGREN GARY M
IPC: G01J5/52
Filed: 1993-11-30
Granted: 1999-11-23
Abstract: A method and apparatus for non-uniformity compensation for infrared focal plane arrays in an infrared imaging device (10) including a calibration operation and a correction operation. The calibration operation measures the response (24) generated by the detector elements (14) in the focal plane array (16) to a wide range of known levels of infrared radiation (22) produced by a uniform black body under controlled conditions. The responses (24) are then stored as a digital video signal (27) in a look-up table memory(38). The correction operation achieves the near real-time compensation of a second response of the detector element (14) to the level of infrared radiation (22) produced by objects in the field of view surveyed by the imaging device (10) by comparing the second response to the stored digital video signals (27) and interpolates the second response to a corrected digital video output signal (31).
Patent CA-2117617-C (CA)
Inventor: KENWORTHY LINDA L
IPC: E02D31/02
Filed: 1994-09-01
Granted: 1999-04-06
Abstract: Disclosed is a rigid, thermoplastic foam board useful in below-grade residential and commercial insulating and drainage applications.  The board defines a plurality of oriented channels extending therein along the board. The channel extends into the board through a relatively narrow first opening at the face into a relatively wide first zone.  The channel then further extends into the board from the first zone through a relatively narrow second opening into a second zone. The board provides superior water drainage, and protects a below-grade building wall from excessive moisture. Further disclosed is a method for using the foam board in below-grade applications.
Patent CA-2121772-C (CA)
Title: Power supply structure for multichip package
Inventor: UMESATO SHOJI
IPC: H05K1/02
Filed: 1994-04-20
Granted: 1998-07-14
Abstract: A power supply structure for a multichip package is provided to improve the transmission performance of signals.  Cases are fitted onto one face of a ceramic substrate.  On the other face are aligned substrates.          On each of the substrates are erected I/O pins.  The I/O pins are connected to signal pins of LSIs via the ceramic substrate's internal layer.  On side faces of the substrates are provided power supply pads.  To the power supply pads are connected the power supply pins of the LSIs  via the ceramic substrate's internal layer.          When power is to be supplied, electroconductive bars are inserted between the substrates.  The electroconductive bars supply power to the LSIs via the power supply pads.  A cable is connected to one of the I/O pins.
Patent CA-2124498-C (CA)
Inventor: FRIESEN KARL HEINZ
IPC: A01B63/16
Filed: 1994-05-27
Granted: 1997-10-07
Abstract: A towed rotary cutter has a main frame defined by the cutter housing supported at its rear by ground wheels that are coupled to the frame through means of a pivotably mounted axle.  A hitch is pivotally mounted at the front end of the frame and carries a clevis assembly at the forward end thereof.  A pair of parallel, transversely spaced leveling rods extend between the hitch and wheel axle with the rear ends of the rods being defined by eyes that are received on respective pins formed integrally with the opposite ends of a cylindrical equalizer bar that is pivotally mounted to the axle.  These pins are radially spaced in opposite directions from the pivot axis of the equalizer bar.  The forward ends of the leveling rods are pivotally coupled to the hitch with one of the rods including an adjustment for changing its effective length extending between the axle and hitch.
Patent CA-2126850-C (CA)
Title: Multi-mode signal processing
Inventor: DENT PAUL W
IPC: H04W88/06
Filed: 1993-10-27
Granted: 2008-02-12
Abstract: A digital system accomodates analog communications, thus avoiding the need for separate subsystems each dedicated to either analog or digital communications. The system includes a receive circuit for converting received signals into an intermediate frequency, a transmit circuit for modulating and transmitting signals and signal processors for processing the intermediate frequency signals and the signals to be transmitted, wherein the signals can be processed into digital or analog format using substantially the same circuitry.
Patent CA-2127999-C (CA)
Title: Touch panel for an acoustic touch position sensor
Inventor: KNOWLES TERENCE J
IPC: G06F3/041
Filed: 1993-01-07
Granted: 2004-03-30
Abstract: An acoustic touch position sensor (16) is shown in which a transducer (18) coupled to a side of a substrate (10) imparts a shear wave (12) into the substrate for propagation along a first axis. A  reflective array (28) is disposed along the first axis to reflect portions of the shear wave along a plurality of parallel paths extending across a touch surface (40) of the substrate to a second reflective array (30) the axis of which is parallel to the axis of the first reflective array. The second reflective array reflects the shear waves incident thereto to a transducer (20) mounted on the side of the substrate and responsive to shear waves propagated thereto for providing a signal representative of these shear waves.
Patent CA-2131374-C (CA)
Inventor: FULLERTON MURRAY G
IPC: B65D33/34
Filed: 1994-01-26
Granted: 2000-05-16
Abstract: A security bag (10) for storing and transporting valuable articles includes an upper pouch (40) said a lower pouch (22) that are not overlapping, that prevents unauthorized parties from entering one pouch and hiding such entry with articles in the other pouch. The upper pouch and the lower pouch open at upper ends of the respective pouches. The security bags are useful for storing and transporting currency and negotiable instruments or receipts.
Patent CA-2134204-C (CA)
Inventor: KAMEN DEAN
IPC: A61M5/142
Filed: 1994-02-28
Granted: 2001-10-09
Abstract: Systems and methods for peritoneal dialysis establish How communication between a patient's peritoneal cavity [tube connector (35)] and a drain [tube connector (29)] through a pump chamber (P1. P2) having generally vertically spaced upper and lower regions [upper ports (64), lower ports (66)] and a diaphragm (59, 61). The systems and methods operate the pump chamber, with the upper and lower regions oriented generally vertically, by applying fluid pressure to the diaphragm (59, 61). The systems and methods direct liquid to the patient's peritoneal cavity only from the lower region of the pump chamber. 1n this way, the improved systems and methods collect air in the upper region of the vertically oriented pump chamber, while isolating the patient's peritoneal cavity from air in the pump chamber.
Patent CA-2134956-C (CA)
Inventor: SMITH OLAN R
IPC: B21B15/00
Filed: 1994-11-02
Granted: 1999-12-21
Abstract: Modular roll apparatus particularly suitable for conveying hot material such as a sheet of steel being processed. Each roll has its own individual water bath and drive mechanism. A water trough isolates the bath from the bearings and drive mechanism for the roll and bathes the underside of the roll to cool it. The entire modular unit can be removed from its operating position and replaced by a similar such unit. A conveyor containing a multiplicity of such units is suitable for conveying hot sheet steel or other hot material in a processing mill.
Patent CA-2139282-C (CA)
Inventor: NAVILLE CHARLES
IPC: G01V1/40
Filed: 1994-12-29
Granted: 2007-01-09
Abstract: La méthode de prospection sismique selon l'invention de type PSV ou PSV inverse, permet de minimiser les perturbations qu'apportent aux enregistrements sismiques, les ondes de tube qui se propagent le long de puits et se réfractent dans les zones proches de la surface. Elle comporte l a dispersion de gaz sous pression peu ou pas soluble dans le fluide contenu dans les puits, ce gaz ayant une compressibilité élevée de préférence, capable d'absorber ces ondes guidées. Il peut s'agir d'un gaz généré par une réaction chimique déclenchée in situ à une certaine profondeur du puits et notamment par une charge explosive (pouvant constituer la source d'ondes sismiques) ou d'un gaz injecté dans du liquide de forage et qui remonte dans l'annulaire entre une colonne de forage et le puits. Application à la prospection sismique ou à l'écoute de bruits de forage.
Patent CA-2139952-C (CA)
Inventor: MITCHELL JAMES D
IPC: D06F43/00
Filed: 1993-07-09
Granted: 2004-03-09
Abstract: The invention provides a cleaning method in which a solvent such as densified carbon dioxide can be used for rapid and efficient cleaning, but with decreased damage to solid components such as buttons. The method comprises contacting a substrate to be cleaned with a first fluid, removing the first fluid from contact with the substrate while replacing with a second fluid, and recovering the substrate substantially free of the first and second fluids and from the contaminant. The first fluid is a densified gas while the second fluid is a compressed gas. A preferred embodiment of the method includes the use of a pretreatment designed for compatibility with the densified first fluid.
Patent CA-2148629-C (CA)
Title: Hydrogenation of photoresponsive semiconductor devices
Inventor: CUNNINGHAM JOHN EDWARD
IPC: H01L31/14
Filed: 1995-05-04
Granted: 1999-10-05
Abstract: Hydrogenation of an optical device that includes an intrinsic region and at least one associated doped region is effective to improve the photoresponsivity of the device. Subsequent annealing of the device substantially restores the conductivity of the doped region(s) while preserving in the intrinsic region a major part of the beneficial effects of hydrogenation.
Patent CA-2149099-C (CA)
Title: Absorbent sanitary article
Inventor: MIZUTANI SATOSHI
IPC: A61F13/15
Filed: 1995-05-09
Granted: 1999-09-07
Abstract: An improved sanitary article such as a menstruation pad, sanitary napkin and the like having a pair of wings, wherein  each  of  the  wings  includes  a  composite  sheet comprising a nonwoven fabric striped with strips of plastic film substantially extending longitudinally of said article and bonded to the upper surface of said nonwoven fabric.
Patent CA-2150526-C (CA)
Title: Biotechnological process for the preparation of cyclic s-.alpha.-amino carboxylic acids and r-.alpha.-amino carboxamides
Inventor: KIENER ANDREAS
IPC: C12R1/38
Filed: 1995-05-30
Granted: 2005-11-15
Abstract: Novel microorganisms which are capable of utilizing an a-imino carboxamide, in the form of the racemate or an optically active isomer thereof, of the general formula:    in which A, together with -NH- and -CH-, forms an optionally substituted 5- or 6-membered saturated heterocyclic ring, as sole nitrogen source, and converting the (RS)-.alpha.-imino carboxamide of formula I into an S-.alpha.-imino carboxylic acid of the general formula:    in which A has the above meaning.
Patent CA-2159253-C (CA)
Inventor: SOBIERADZKI EDWARD STANISLAW
IPC: H01J25/04
Filed: 1995-09-27
Granted: 2005-11-08
Abstract: A linear electron beam tube such as an IOT includes an input cavity 6 formed from an inner body portion 12 and an outer body portion 13 which are joined together by a ceramic cylinder 14. The input cavity 6 surrounds an electron gun 1 and permits electrical connection to be made to the cathode 2 and grid 3 via parts of the inner body portion 20 and 21. Metallisation layers 18, 19, 23 and 24 in conjunction with the intervening ceramic material of the cylinder 14 define rf chokes. The construction enables high voltage parts of the arrangement to be insulated from the low voltage outer body portion whilst presenting a low leakage path for r.f. energy within the cavity 6.
Patent CA-2163028-C (CA)
Inventor: FREUND PETER
IPC: C07D417/10
Filed: 1994-05-19
Granted: 2003-11-25
Abstract: Composés de formule (I) dans laquelle A désigne un composé carbocyclique avec 5 ou 6 atomes de carbone ou un composé cyclique avec un maximum de 4 hétéroatomes, ces hétéroatomes pouvant être identiques ou différents et désigner l'oxygène, l'azote ou le soufre et les hétérocycles pouvant éventuellement porter un atome d'oxygène sur un ou plusieurs atomes d'azote, B désigne -CH=CH-, -N=CH-, -CH=N-, O ou S, W désigne CH2, O, CH(OH), CO ou -CH=CH-. X désigne S, O ou NR<2> représentant l'hydrogène ou un alkyle C1-C6, Y désigne CH ou N, R désigne un naphtyle, un pyridyle, un furyle, un thiényle ou un phényle, auxquels sont éventuellement monosubstitués ou disubstitués un alkyle C1-C3, un CF3, un alkoxy C12-C3, F, CL ou le brome, R<1> désigne l'hydrogène ou un alkyle C1-C6 et n un chiffre de 1 à 3 ainsi que leurs tautomères, leurs énantiomères, leur diastéréo-isomères et leurs sels physiologiquement tolérables, procédés pour leur préparation et médicaments contenant ces composés pour le traitement du diabète.
Patent CA-2165113-C (CA)
Title: Portable well testing apparatus
Inventor: NELSON CLIFF
IPC: E21B49/08
Filed: 1995-12-13
Granted: 2002-12-10
Abstract: A frame structure arranged for ease of retrofit to an existing truck bed includes telescoping legs from the associated frame structure to orient a guide roller as desired to be positioned overlying  a well entrance opening. A reel rotatably mounted and motor driven and controlled supports a first hose having a sump pump arranged for submersible positioning within the well. Upon positioning of the sump pump within the well, power supply to the sump pump to direct fluid extraction from the well for providing test samples from the associated well is provided. To this end, the compact and convenient organization permits ease of use as well as convenience in transport and storage of the organization relative to a water well testing apparatus.
Patent CA-2165119-C (CA)
Title: Antiresonant waveguide apparatus for periodically selecting a series of at least one optical wavelength from an incoming light signal
Inventor: DELISLE VINCENT
IPC: G02B5/20
Filed: 1995-12-13
Granted: 2006-10-03
Abstract: The antiresonant waveguide apparatus is for periodically selecting a first series of at least one optical wavelength from a first incoming light signal. It comprises a first waveguide having an input for receiving the incoming light signal, the first waveguide having guiding mirrors for guiding the incoming light signal, one of the guiding mirrors being a first partial reflectivity mirror; a second waveguide having guiding mirrors for guiding an outputting light signal containing the first series of at least one wavelength; and a first Fabry-Perot resonator adjacent to the first partial reflectivity mirror, and forming one of the guiding mirrors of the second waveguide. The Fabry-Perot resonator is a second partial reflectivity mirror for the second waveguide. The Fabry-Perot resonator has a predetermined thickness determining the first series of at least one optical wavelength transmitted through the Fabry-Perot resonator from the first waveguide to the second waveguide.
Patent CA-2166815-C (CA)
Inventor: ROUNDS ROY MARKLEY
IPC: B66C1/58
Filed: 1996-01-09
Granted: 1997-07-15
Abstract: An  attachment  (25)  for  a  grapple  tong  (20) comprises a base (25.1) provided with a projection (20.4) thereon.  When the attachment (25) is attached to a grapple tong  (20)  along its base  (25.1),  the projection (20.4) forms a secondary tong on the grapple tong (20).
Patent CA-2167269-C (CA)
Title: Traitement d'un produit comestible a l'aide d'humectants
Inventor: WOODWARD SUSAN ISABEL
IPC: A23L19/00
Filed: 1994-07-15
Granted: 1999-03-16
Abstract: Procédé permettant de réduire le niveau d'humidité relative d'équilibre dans un produit comestible, consistant à: appliquer au produit une solution contenant un premier agent humidifiant sous une forme liquide, au moins une partie du premier agent humidifiant étant absorbée dans le produit comestible; appliquer au produit un second agent humidifiant sous une forme solide afin que ce second agent absorbe toute humidité résiduelle et soit lui-même absorbé dans le produit; les premier et second agents humidifiants permettant tous deux de réduire efficacement l'humidité relative d'équilibre du produit à un niveau prédéterminé.
Patent CA-2168955-C (CA)
Inventor: KIGHT WILLIAM D
IPC: H04B10/075
Filed: 1994-06-10
Granted: 2004-08-31
Abstract: A method and apparatus for establishing an intelligent demarcation between facility and terminal segments of asynchronous optical network. Network management information contained with the overhead structure of the synchronous optical network signal is extracted and manipulated in accordance with a predetermined user specification; overhead data may be translated, terminated, or passed unaltered as required. Overhead processing towards the facility and terminal segments need not be symmetrical. Payload information is passed unaltered although future provisions for encrypting payload data exist. Full performance monitoring is supported along with a built-in-test and diagnostic capability. The device may be both locally and remotely controlled and monitored Remote control is implemented via the overhead information contained within the synchronous optical network signal.