baber/WOPTO huggingface dataset:
Patent CA-2156639-C (CA)
Title: Method and apparatus for mitigating audio degradation in a communication system
Inventor: KOTZIN MICHAEL DALE
IPC: H03M7/30
Filed: 1994-12-22
Granted: 2000-06-27
Abstract: Audio degradation is minimized in scenarios where tandem coding occurs. One such scenario is in the environment of voice mail service. Characteristics of an audio information signal are determined, and the signal is classified (303) as to whether further coding (306) should be performed and, if so, which rate/type of coding should be performed. Characteristics of the audio signal which are determined are, inter alia, quality characteristics, rate of previous coding, type of previous coding and the source of previous coding of the audio information signal. The source of previous coding determined may further include, inter alia, an analog network, a digital network, a PSTN or a wireless communication system. Based on this information, the voice mail service will either choose not to further code the audio information signal or code the audio information signal with the best coding algorithm available.
Patent CA-2157048-C (CA)
Title: Improvements relating to handover in a digital cordless telephone system
Inventor: BEESLEY GRAHAM EDGAR
IPC: H04W36/08
Filed: 1994-02-23
Granted: 1999-09-21
Abstract: In a digital time-division duplex telecommunications system two or more base units (1) are capable of capable with any one of a plurality of portable units forming a cordless telephone system. Each of the base units (1) includes a transceiver (13) for transmitting signals and receiving coded speech signals from any one of the portable units and synchronisation means including a switch S1 and a receive bit counter (24) for synchronising each of the base units (1) with the MUX1 transmissions (i.e. the coded speech signals) from a portable unit so that handover of communication with one of the portable units from a first base unit, presently in communication with the portable unit, to a further base unit can be performed without substantial interruption of the reception and transmission of coded speech signals between the portable unit and the base units.
Patent CA-2160817-C (CA)
Inventor: JOHNSTON RUSSELL A
IPC: E21B34/10
Filed: 1995-10-18
Granted: 2005-08-09
Abstract: A subsurface safety valve 10 has a tubular valve housing 12, a valve closure member 18 movable between an open position and a closed position, an axially shiftable flow tube 24 for opening the valve closure member 18, a spring 38 for biasing the flow tube 24 to a closed position, a piston and cylinder assembly 26 to move the flow tube 24 to an open position, and a plug inserted within an opening in the valve housing 12. This opening is in fluid communication with the piston and cylinder assembly 26.  The plug is adapted to be displaced from the opening to lock out the safety valve, and to establish secondary hydraulic fluid communication with an interior of the safety valve in order to operate secondary tools, such as wireline set secondary valves, inserted into the locked out safety valve. This provides a low cost and relatively uncomplicated lockout mechanism.
Patent CA-2161905-C (CA)
Inventor: URBAS DONALD J
IPC: G01S13/75
Filed: 1991-09-10
Granted: 1997-04-15
Abstract: A  system  for  transmitting  a  signal  to,  and  for receiving a signal from a passive transponder includes a probe which transmits an exciter signal having a first frequency and receives  a  signal  from  the  transponder having  a  second frequency.  The probe includes an antenna for transmitting the exciter signal.  The antenna includes a secondary coil and a primary coil wound about the secondary coil.  The secondary coil is tuned to resonate at the first frequency.  A receiver is  provided  for  driving  the primary  coil  at  the  first frequency.
Patent CA-2165009-C (CA)
Inventor: WRIGHT JOHN O
IPC: H02G3/32
Filed: 1995-12-12
Granted: 2004-09-14
Abstract: A cable clamp is provided including first and second clamp members which are disposed at an angle relative to each other and connected together by a web.  The first clamp member is configured so that a first length of a cable may be snapped therein to be held in place. A locking segment is pivotally connected to the second clamp member to lock a second length of such cable in place.
Patent CA-2166361-C (CA)
Title: Rotary seal assembly for rotary drum
Inventor: BUELOW KARL
IPC: F27B7/24
Filed: 1995-12-29
Granted: 2006-01-24
Abstract: An improved rotary seal assembly for kiln drums and the like utilizes a series of overlapping metal leaves mounted to a hood surrounding the drum and a wear ring resiliently supported to surround the drum at an annular spacing from its outer surface.      Wear liners on the metal leaves are resiliently held by the leaves in surface contact with the outer surface of the wear ring to maintain a seal therebetween. Respective annular plates project radially outwardly from the drum and inwardly from the wear ring into overlapping abutment to seal the annular space between the wear ring and the drum.
Patent CA-2166915-C (CA)
Title: Intracavitary catheter for use in therapeutic radiation procedures
Inventor: D ANDREA MARK A
IPC: A61M36/04
Filed: 1996-01-10
Granted: 2002-12-10
Abstract: The present invention is for radiation diagnosis and/or therapy in or near body cavities accessible through existing orifices. At least one balloon of a catheter and balloon assembly is inflated by fluid communication through the catheter. Several embodiments provide for diagnostic procedures or radiation therapy, at times in association with one or more of formation of seals, control of movement, nutrient passage and drainage. When radiation therapy is provided, rods or other radiotherapeutic items are secured, positioned or inserted along the contour of the surface of the balloon and are thus deployed to treatment position by balloon inflation.
Patent CA-2171574-C (CA)
Inventor: TANSLEY BRIAN W
IPC: G06T9/00
Filed: 1996-03-12
Granted: 2000-10-03
Abstract: A photometric measurement apparatus, includes a digital video camera for generating digital data representing the image of a scene of interest, a device for stepwise changing the exposure duration of the camera; a device for controlling the camera to create automatically a series of digital images of the same scene over a range of different exposures; a device for storing the digital images; a device of assembling data from the series of digital images to create a single composite digital image containing information from at least some of the digital images and representing an intensity dynamic range greater than that obtainable from what can be measured from any single image; and a device for storing said assembled data representing said composite digital image.
Patent CA-2174057-C (CA)
Inventor: NESS RANDOLPH PETER
IPC: B65H75/40
Filed: 1996-04-12
Granted: 2002-09-10
Abstract: A housing for a retractable cord mechanism includes a first body, a second body and a coupling for securing the first body to the second body in a water tight manner to create a composite body with an interior cavity.  The composite body has a  snout-like projection with  an opening positioned  at  a terminus of the snout-like projection.  The composite body is mounted with the snout-like projection angled downwardly such that any water splashed up into the interior cavity of the composite housing drains by force of gravity out of the opening at the terminus of the snout-like projection.
Patent CA-2187865-C (CA)
Inventor: LUPKE MANFRED A A
IPC: B29C49/00
Filed: 1995-04-20
Granted: 2004-07-06
Abstract: Moule mobile (5) dont les blocs de moulage (3) se déplacent le long d'une voie sans fin (1, 2). Le système d'entraînement dudit moule comporte un premier élément d'entraînement (5) qui transporte les blocs (3) en position contiguë vers un second élément (7) du système d'entraînement qui les accélère et les sépare, puis les décélère, les replace l'un contre l'autre et les ramène vers le premier élément d'entraînement (5). La séparation et le regroupement des blocs (3) évite d'avoir une chaîne complète de blocs contigus (3) entourant complètement le moule (5).
Patent CA-2195769-C (CA)
Title: Radar apparatus
Inventor: SCHOLZ JOHN ARTHUR
IPC: G01S15/34
Filed: 1995-07-20
Granted: 2006-09-19
Abstract: The invention relates to a radar apparatus provided with a transmitting unit (1), antenna unit (2) and a receiver unit (3). The transmitting unit (1) transmits pulses having a modulation for enabling pulse compression on reception. As an ECCM feature the radar apparatus is further provided with a blanking circuit (5). The blanking circuit comprises two filters, one filter being responsive to the first half of the transmitted pulse only, the other filter being responsive to the second half of the transmitted pulse only. Blanking occurs if both filters simultaneously produce an output.
Patent CA-2199778-C (CA)
Title: Extended release formulation of venlafaxine
Inventor: SHERMAN DEBORAH MARIE
IPC: A61K9/72
Filed: 1997-03-12
Granted: 2005-12-20
Abstract: This invention relates to a 24 hour extended release dosage formulation and unit dosage form thereof of venlafaxine hydrochloride, an antidepressant, which provides better control of blood plasma levels than conventional tablet formulations which must be administered two or more times a day and further provides a lower incidence of nausea and vomiting than the conventional tablets.
Patent CA-2202215-C (CA)
Inventor: ELGARHY YASSIN M
IPC: D06M15/263
Filed: 1997-04-09
Granted: 2002-03-26
Abstract: A treated fibrous polyamide substrate having durable  resistance  to  staining  by  acid  colorants comprising  a  fibrous  polyamide  substrate  having applied thereto an aqueous solution of a sulfonated, phosphated resol resin and a methacrylic polymer or copolymer of high number average molecular weight, and preferably high weight average molecular weight and optionally, fluorochemical; and the method of treating said substrate with the solution to render it durable to staining by acid colorants.
Patent CA-2204093-C (CA)
Title: Stair-climbing vehicle for wheelchair
Inventor: MISAWA RINTARO
IPC: A61G3/08
Filed: 1997-04-30
Granted: 2004-02-24
Abstract: There is provided a stair-climbing vehicle for transporting a wheelchair with a person sitting on. The vehicle comprise a crawler device including a pair of endless belt crawlers disposed on opposite sides of the vehicle; a vehicle body including a driving motor for driving the crawler device to enabling the stair-climbing vehicle to climb up or down a stairway; a load-carrying platform for mounting a wheelchair, said load-carrying platform being provided above the vehicle body capable of pivoting in vertical direction about one end thereof. The load-carrying platform is provided with a inclination sensor. The inclination sensor includes a first inclination sensing element and a second inclination sensing element, each inclination sensing element is a tubular member containing a flowable electrically conductive material and a pair of electrically conductive terminals.
Patent CA-2210374-C (CA)
Title: Compositions auto-adherentes a resistance au cheminement amelioree utilisables pour le revetement de substrats metalliques
Inventor: JUHUE DIDIER
IPC: C09J11/00
Filed: 1997-07-22
Granted: 2003-12-30
Abstract: L'invention concerne une composition auto-adhérente en poudre à résistance au cheminement améliorée à base de résines thermoplastiques et/ou thermodurcissables et de carbonate de calcium aciculaire. Elle est appliquée sous forme de poudre sur le substrat métallique, puis par fusion de la poudre, on obtient un revêtement résistant au cheminemnt.</SDOA B>
Patent CA-2211208-C (CA)
Inventor: VOGT DAVID JOHN
IPC: E04G23/02
Filed: 1997-07-21
Granted: 2008-09-30
Abstract: The present invention relates to a device to assist in filling a hole in a sheet or plate of any material, with a filler compatible with said material, said device comprising: a flexible plate adapted to be inserted through said hole in said sheet or plate; a detachable, attachment member adapted to extend generally perpendicularly from a surface of said flexible plate and including means to locate at least one locking member thereto; said locking member being detachably attachable to said attachment member so as to apply a tensile load on said attachment member thereby causing said flexible plate to bear on and be held adjacent to said hole.
Patent CA-2212494-C (CA)
Title: System and method for transmitting paging message
Inventor: KONDO SEIJI
IPC: H04W68/00
Filed: 1997-08-07
Granted: 2002-01-22
Abstract: When a mobile station 40 is to be called by a fixed terminal device 10 as a caller side, incoming call in formation containing the intermittent receiving cycle of the mobile station 40 and a mobile station number is sent from a control station 20 to a radio base station 30. A paging slot received by the mobile station 40 is obtained based the mobile station number and the intermittent receiving cycle. The incoming call information is written in a buffer corresponding to the obtained paging slot in paging slot table section 32. Transmission processing section 34 calculates products between intermittent receiving cycles and numbers of holding times. A priority order for transmission is decided based on the calculated products. The mobile station numbers are packed in a paging message starting from the information high in the priority order.
Patent CA-2215672-C (CA)
Inventor: MAZANEC TERRY J
IPC: B01D71/02
Filed: 1997-09-12
Granted: 2005-01-04
Abstract: The invention relates to novel membranes, formed from perovskitic or multi-phase structures, with a chemically active coating which demonstrate exceptionally high rates of fluid flux. One application is the separation of oxygen from oxygen-containing feeds at elevated temperatures. The membranes are conductors of oxygen ions and electrons, and are substantially stable in air over the temperature range of 25°C to the operating temperature of the membrane.
Patent CA-2225189-C (CA)
Title: Canine factor viii gene, protein and methods of use
Inventor: CAMERON CHERIE
IPC: A61K38/37
Filed: 1998-03-06
Granted: 2010-05-25
Abstract: The present invention provides isolated nucleic acid molecules encoding canine factor VIII and allelic variants, mutants, fragments or derivatives thereof. The invention also provides canine factor VIII polypeptides encoded by such isolated nucleic acid molecules, antibodies binding to such polypeptides, genetic constructs comprising such nucleic acid molecules, prokaryotic or eukaryotic host cells comprising such genetic constructs, and methods and compositions for use in diagnosing and treating canine disorders characterized by factor VIII deficiency.
Patent CA-2225936-C (CA)
Inventor: VINER JOHN
IPC: G06Q20/34
Filed: 1996-06-28
Granted: 2002-04-23
Abstract: A value transfer system using integrated circuit cards for exchanging electronic cash in off-line transactions employs crytographically secure message protocols. Cards are loaded each with two schemes from a series and interactions between cards determines and uses the older scheme shared by the cards, causing one card to switch schemes irrevocably if that common scheme is its second scheme. In this way a switch to a new scheme can migrate through the system.
Patent CA-2226076-C (CA)
Inventor: BOUTON-HUGHES PHILIPPE
IPC: B65D8/00
Filed: 1996-06-07
Granted: 2006-04-18
Abstract: A method for packaging food that may be cooked or reheated in a thermal oven, wherein the food is placed in a container made of a single peeled-wood blank that is folded and assembled at the folded side walls thereof. A tray particularly suitable for use in the method is also disclosed.
Patent CA-2226756-C (CA)
Title: Vibration-damped machine driven tool
Inventor: JAKOBSSON STEFAN
IPC: B25F5/00
Filed: 1996-07-04
Granted: 2006-02-14
Abstract: Hand-held or mechanically carried machines that are disturbed by undesirable vibrations generated in the machine housing (10) from a drive mechanism (11, 13) and a tool (12) driven thereby when said mechanism and said tool are in operation are provided with a vibration-dampe d carrier device (20) which forms a cradle (21-23) in which the machine housing ( 10) is supported by at least two pairs of leaf spring bridges (27, 29; 28, 30). The leaf springs (27, 29; 28, 30) are attached in pairs to the cradle (21-23) and support the machine housing (10) on both sides thereof while being spaced from the housing (10) longitudinally for balanced parallel movement of the cradle in the tool feed direction with the cradle (21-23) vibration-dampened without the need of longitudinal guides between the cradle and the machine housing (10).
Patent CA-2227546-C (CA)
Title: Brush for improved tuft retention and anchor wire therefor
Inventor: FASSLER MANFRED
IPC: A46B3/16
Filed: 1996-06-11
Granted: 2002-05-28
Abstract: A brush with improved tuft retention having a handle, a head made from a flowable material, connected to the handle, having a plurality of tuft holes  (52) therein, with at least one bristle (56) anchored in each tuft hole (52)  with a multi-sided staple (50). Each staple (50) has a plurality of grooves (54) in at least one side and the grooves in the staples are transverse to t he longitudinal axis of the bristles when the staple is used to anchor bristles  in a tuft hole (52).
Patent CA-2231975-C (CA)
Inventor: FRIDERICHS ELMAR JOSEF
IPC: C07D213/38
Filed: 1998-03-12
Granted: 2007-09-11
Abstract: Substituted amino compounds of general formula (I) See formula I     are described, as are a method of preparing them and their use as drugs.
Patent CA-2232275-C (CA)
Inventor: BOYD THOMAS H
IPC: C21B13/10
Filed: 1998-03-17
Granted: 2001-10-23
Abstract: A method and apparatus for producing direct reduced iron from dry compacts composed of iron oxide and carbonaceous material by feeding compacts no more than two layers deep onto a hearth and removing all the volatiles and metallizing the compacts by exposing said compacts to a radiant heat source at a temperature of from about 1315 to about 1430°C for a total time period of about four to ten minutes and partially cooling the compacts while discharging them from the hearth.
Patent CA-2232571-C (CA)
Inventor: MURATORI STEFANO
IPC: C25F7/00
Filed: 1996-08-27
Granted: 2006-10-24
Abstract: The device proposed for cleaning metal surfaces consist of pad (12, 34, 91) of insulating material held between a beak-shaped (11, 52, 94) electrode (10, 26, 46) and the metal surface (8) tobe cleaned, plus a low-voltage a.c. power supply (2) which is connected via the other electro-de to the metal (7). A pump supplies the pad with a highly corrosive, high-density, acid solution. The pad consists of a relatively thick hose or tape. The device has slots (36) into which the gases and vapours produced during cleaning are drawn by an extractor fan (40) and then passed through a washing bottle (41) where they are cleaned. The electrode may have various shapes, and it is possible to replace the tip (28, 94, 98). The electrode is preferably designed with bores through which the acid solution can be fed. The main body (97) of the electrode and the replaceable tip (94, 98) may be coated with a la-yer (101, 100) of insulating material which prevents short-cicuits occurring and concentrates the electrolitic action ant the end surface (102) of the electrode. Woven of felt fabric made of plyetheretherketone is preferably used as the insulating material of the pad. The lifetime and working capacity of the device are maximized by using a double-layer pad (92, 93), the inner layer being made of woven fabric (92) and the other layer of felt (93).
Patent CA-2237339-C (CA)
Title: Bearing for high speed coil winding
Inventor: LINK GREGORY
IPC: H01F41/082
Filed: 1997-09-10
Granted: 2007-03-13
Abstract: A bearing for maintaining a bobbin in relative position about a transformer core leg during the winding of a coil on the bobbin. The bearing is movable along the core leg such that a bearing surface of the bearing is positioned adjacent to but not touching each of two outwardly facing surfaces of two spaced apart flanges of the bobbin. The bearing surface is highly polished to reduce friction. The bearing surface preferably includes a circumferential ridge centered about the axis of the transformer core leg on which the bobbin is positioned. The outwardly facing surfaces of the two flanges each include a concentric groove shaped to complement the circumferential ridges of the bearing surfaces. When the bearing is in position the circumferential ridges are partially received within the concentric groove such that a small gap is maintained between the bearing surfaces and the outwardly facing surfaces. The bearing surface can also include ports for exhausting low pressure air into the space between the bearing surface and the outside surface of the bobbin flange. The low pressure air cools the bearing surface and acts as a cushion between the bearing and the bobbin flanges.
Patent CA-2239466-C (CA)
Title: Wax deposit inhibitors
Inventor: JAMES KEITH
IPC: C09K8/524
Filed: 1996-12-20
Granted: 2005-03-15
Abstract: Novel N-substituted polyalkyleneimines having at least one organic substitue nt of at least 6 carbon atoms e.g, 2 hydroxy octadecyl, on at least one nitrogen atom are disclosed. They may be prepared by reactin g a polyalkyleneimine with either an epoxide or an imine or a compound of formula R-(X)a-Y wherein R is an organic group, X is a polar group, Y is a nucleophilic leaving group and a~0 or 1 e.g. an acid chloride or an acid anhydride. The N-substituted polyalkyleneimines can be used to lower the wax appearance temperature or to reduce the deposition of wax from a hydrocarbon e.g. crude oil containing wa x.
Patent CA-2240242-C (CA)
Title: Printing apparatus with strip detecting means
Inventor: HEVENOR CHARLES M
IPC: G11B15/32
Filed: 1993-10-15
Granted: 2005-08-09
Abstract: Printing apparatus for printing on a strip of sheet material comprising a printing head, platen means on which a strip of sheet material is moved and positioned to be printed upon by the printing head, feeding means for moving the strip of sheet material over the platen means and relative to the printing head during printing by the head, and strip detection means associated with the platen means for detecting the absence of the strip at the platen means and producing a corresponding warning signal.
Patent CA-2242300-C (CA)
Title: Adhesive for difficult to bond surfaces
Inventor: LORENZ RANDOLPH JOHN
IPC: C09J131/04
Filed: 1998-07-02
Granted: 2001-11-13
Abstract: Improved aqueous emulsion vinyl acetate-ethylene (VAE) polymer adhesives for use in packaging applications and on difficult to bond surfaces such as polyethylene, poly(ethylene terephthalate) and oriented polypropylene. The VAE polymers contain about 55-80 wt% vinyl acetate 15-45 wt% ethylene and 0-30 wt% of one or more additional ethylenically unsaturated copolymerizable monomer, based on the total weight of monomers. Cast films of the VAE emulsion polymers of this invention should have a tensile storage modulus (test frequency of 6.28 rad/sec) within the area encompassed by the following data points: 1x10 5 and 2x10 7 dynes/cm2 at 23 °C, and 1x10 3 and 2X10 6 dynes/cm2 at 70 °C; preferably within the area encompassed by the following data points: 1x10 6 and 1.5x10 7 dynes/cm2 at 23 °C and 3x10 4 and 9x10 5 dynes/cm2 at 70 °C.
Patent CA-2243469-C (CA)
Inventor: CHAN BECKY LAIPING
IPC: G06F21/12
Filed: 1996-12-19
Granted: 2000-10-31
Abstract: La présente invention concerne une technique de codage protégeant les progiciels et les matériels contre la copie illicite, le détournement et la mise à jour de leurs fonctions. Ces progiciels et matériels (ou plus généralement les logiciels), une fois qu'ils ont été codés selon ce principe, restent exécutables. La technique de codage met en oeuvre un concept de complexité des logiciels et traite par inversions de proximité les fonctions contenues dans les logiciels, tout en préservant les comportements. Diverses réalisations permettent de réaliser ce codage, et notamment un traitement par mise en cascade ou par entrelacement des blocs des programmes.