baber/WOPTO huggingface dataset:
Patent CA-2249152-C (CA)
Title: Apparatus for and method of managing bandwidth for a packet-based connection
Inventor: KUNG HSIANG-TSUNG
IPC: H04L47/267
Filed: 1998-09-30
Granted: 2003-07-08
Abstract: Flow control of packet based traffic by window is known. Novel modification is described which causes the flow control mechanism to reduce sending rate to some configured number rather than just reducing it by a fixed amount such as one half. The description also shows how the flow control mechanism can be constrained to a maximum rate. The configured numbers will assure that the connection can always run at a minimum rate but not more than a maximum rate. If the guaranteed minimum bandwidth is known and the round trip time between the end points is known or has been calculated, then the sender node needs only reduce its window to that which corresponds to a sending rate equal to that configured number. In this way the protocol will still probe for extra, opportunistic bandwidth but will be able to maintain the minimum rate. In a similar way a window that corresponds to the maximum rate can be calculated and used to constrain the maximum rate of sending.
Patent CA-2250526-C (CA)
Inventor: FREY CHERYL M
IPC: G02B5/124
Filed: 1996-07-29
Granted: 2007-10-02
Abstract: A retroreflective article comprising an ultra-flexible structured retroreflective sheeting having a front surface and a back surface, the sheeting retroreflecting light entering through the front surface, wherein the sheeting comprises an overlay film, a two-dimensional array of substantially independent structured elements, the structured elements bonded to the overlay film, and a sealing film forming the back surface of the sheeting and bonded to the overlay film between the structured elements; a plurality of indentations in the sealing film; and a seal coat located on the sealing film, wherein the seal coat at least partially fills the indentations in the sealing film.
Patent CA-2251520-C (CA)
Title: Pipe connector connection checking assembly
Inventor: KIMURA HIDEKI
IPC: F16L37/098
Filed: 1998-10-28
Granted: 2003-12-30
Abstract: There is provided a pipe connector connection checking assembly in which it can surely be checked that a male connector is incompletely connected with a female connector. A connection checking member is formed with an ear portion for integrally connecting a pair of claws disposed opposingly and a portion having a low strength formed at a portion except the ear portion, and the claws of the connection checking member are inserted into holes in the female connector. When the connection checking member is pulled outward in the state in which the male connector is incompletely inserted into the female connector, the portion having a low strength is broken before the engagement of the claws is released.
Patent CA-2253131-C (CA)
Inventor: SMITH COLIN
IPC: G01F23/28
Filed: 1998-10-30
Granted: 2007-02-13
Abstract: A transducer assembly adapted for the pulse-emission of a signal and comprising a transducer (10) with a drive-circuit (20) therefor. The circuit (20) includes a charge-storage device (21), a wound-coil device (23) and one or more switching-elements (24, 25). The assembly can be used to determine the level of a fluid in an enclosed vessel.
Patent CA-2254322-C (CA)
Inventor: LAGRANGE ALAIN
IPC: A61Q5/00
Filed: 1998-12-11
Granted: 2004-04-13
Abstract: La présente invention concerne l'utilisation d'un agent de coloration photochrome thermiquement irréversible comme agent de coloration dans une composition cosmétique, ainsi que les compositions cosmétiques le comprenant. L'agent de coloration utilisé peut notamment être choisi parmi les composés qui appartiennent à la famille des diaryléthènes et/ou ceux qui appartiennent à la famille des fulgides. Cet agent de coloration permet d'obtenir des effets de coloration nouveaux.
Patent CA-2256145-C (CA)
Inventor: TREMBLAY FRANCOIS
IPC: C25C3/22
Filed: 1998-12-16
Granted: 2007-09-25
Abstract: The invention relates to a system for cooling and reducing fluoride emissions from a hot, spent anode butt removed from an electrolysis cell. The system comprises an elongated fluidised bed cooling chamber comprising particles of alumina and conveyor means for transporting a hot, spent anode butt through the fluidised bed. A lower air distributor is provided for injecting fluidising air into the chamber to create the fluidised bed and an upper air distributor is provided which is adapted to direct fluidised particles into contact with the top surface of the hot anode butt, whereby the fluidised bed surrounds the hot anode butt and serves to simultaneously uniformly cool the hot anode butt and significantly reduce fluoride emissions from the hot anode butt.
Patent CA-2257623-C (CA)
Title: Substituts de l'amidon modifie utilises dans la fabrication du papier
Inventor: NICHOLS SCOTT E
IPC: C08B30/00
Filed: 1996-06-12
Granted: 2003-02-11
Abstract: Cette invention se rapporte à des procédés de fabrication du papier qui utilisent des glucanes, produits par les enzymes glucosyltransférases D de l'espèce Streptococcus mutans, au lieu d'amidons modifiés. Ces glucanes sont fonctionnellement similaires à l'amidon modifié hydroxéthyle et ils sont particulièrement utiles dans les étapes d'encollage et d'enduction lors de la fabrication du papier. Ces glucanes possèdent également des propriétés thermoplastiques et confèrent un effet glacé au papier pendant l'étape d'enduction.
Patent CA-2263496-C (CA)
Title: Stent deployment catheter with retractable sheath
Inventor: VRBA ANTHONY C
IPC: A61F2/06
Filed: 1997-08-27
Granted: 2006-08-15
Abstract: The present invention provides an improved stent delivery catheter. The sten t delivery system comprises a catheter having a stent receiving portion adapted to receive a stent (35) near the distal end (25) o f the catheter and a stent (35) concentrically arranged around the catheter within the stent receiving portion. The stent delivery system furth er comprises a proximal outer sheath (10), a retractable distal sheath (40) surrounding at least a portion of the stent (35) and containing the stent in its reduced delivery configuration and a pull back means (45) connected (46) to the retractable distal sheath (40, 48). The system further comprises an arrangement wherein the retractable sheath (48) is pulled into the catheter (49) when the pull back means is pulled proximally and the distal sheath is retracted, freeing the stent for delivery.
Patent CA-2263562-C (CA)
Inventor: GAO JASON ZHISHENG
IPC: C10M145/14
Filed: 1999-03-15
Granted: 2009-08-11
Abstract: A base oil for an SAE 0W-40 lubricant composition comprises a mineral basestock, a polyalpha olefin and synthetic ester lubricant. The SAE 0W-40 lubricant comprises the base oil and a mixture of polymethacylate and olefin copolymer or hydrogenated diene VI improvers.
Patent CA-2271596-C (CA)
Title: Electricity meter
Inventor: RIDENOUR RON
IPC: G01R21/133
Filed: 1999-05-13
Granted: 2010-10-05
Abstract: A meter for measuring electricity usage for a given load includes a housing and two light sources disposed in the housing and configured to output light at a predetermined frequency. Two light receivers are disposed in the housing so that a light path is defined between each light source and its respective light receiver. Each light receiver is configured to receive the light from its light source and to output a signal responsively thereto. A rotatable member is disposed in the housing in the light paths and is rotatable responsively to the electricity usage. The member has a first portion and a second portion. The first portion transmits incident light while the second portion blocks light. The first portion and the second portion are defined on the member so that the member modulates the light as it rotates. A filter circuit in communication with the light receiver is configured to receive the output signal from the light receiver and to detect therefrom modulation of the light by the rotatable member.
Patent CA-2282183-C (CA)
Title: Oxy substituted 4-carboxyamino-2-methyl-1,2,3,4-tetrahydroquinolines
Inventor: GOLDSTEIN STEVEN WAYNE
IPC: A61P9/12
Filed: 1999-09-14
Granted: 2006-08-08
Abstract: Cholesteryl ester transfer protein inhibitors, pharmaceutical compositions containing such inhibitors and the use of such inhibitors to elevate certain plasma lipid levels, including high density lipoprotein-cholesterol and to lower certain other plasma lipid levels, such as LDL-cholesterol and triglycerides and accordingly to treat diseases which are exacerbated by low levels of HDL cholesterol and/or high levels of LDL-cholesterol and triglycerides, such as atherosclerosis and cardiovascular diseases in some mammals, including humans.
Patent CA-2283024-C (CA)
Title: Protection from overheating of a switching transistor that delivers current to a daytime running light on a vehicle
Inventor: VILKINOFSKY JOHN W
IPC: H03K17/0814
Filed: 1999-09-22
Granted: 2002-09-17
Abstract: A protection circuit protects from overheating a switching transistor that delivers current from a power source to a daytime running light on a vehicle. The protection circuit of the present invention open-circuits the switching transistor from the power source when the temperature at the switching transistor is sensed to be above a predetermined temperature. In this manner, excessive current is prevented from flowing through the switching transistor. In contrast, prior art protection circuits control only the gate of a MOSFET or base of a BJT switching transistor. In that case, if damage to the transistor results in an effective resistance , constant flow of current through such an effective resistance results in excessive overheating or even a fire. The protection circuit of the present invention open-circuits the conductive path from the power source through the effective resistance such that current does not flow through the effective resistance. Furthermore, a latching circuit in the protection circuit of the present invention maintains the switching transistor to be open-circuited from the power source once the temperature at the switching transistor reaches the predetermined temperature. Thus, the traffic hazard or degradation of the switching transistor, which may result from the daytime running light flashing on and off, are also avoided with the protection circuit of the present invention.
Patent CA-2289245-C (CA)
Title: Clutch for multi-directional transportation device
Inventor: GRIGGS GERALD THOMAS
IPC: A61G5/04
Filed: 1999-11-10
Granted: 2006-01-24
Abstract: A clutch for altering the direction of a drive unit of a transportation device between a first direction of travel and a second direction of travel, the drive unit having at least one drive wheel connected to a shaft, the shaft being rotatably mounted with respect to the transportation device between at least a first position, corresponding to the first direction of travel, and a second position, corresponding to the second direction of travel, the clutch comprises a housing to receive a portion of the shaft, a lock having a first preset locked position corresponding to the first direction of travel and a second preset locked position corresponding to the second direction of travel and, a connecting member connected to the shaft and the lock for alternately locking the shaft in one of the directions of travel.
Patent CA-2290277-C (CA)
Inventor: CLARKE DALE MARVIN
IPC: E21B21/02
Filed: 1999-11-22
Granted: 2005-03-29
Abstract: A swivel chamber that streamlines the procedure for retrieving core samples from a wireline diamond core drill. The swivel chamber includes a housing, a rotary seal, overshot and wire cable packing. The swivel chamber is threaded at one end for attachment to a drill rod. The other end of the swivel chamber allows for the connection of a cable packing housing. The swivel chamber has two spaced fluid inlets to drive the drilling cycle and the core retrieval cycle. Contrary to previous designs, the swivel chamber remains in place during both cycles.
Patent CA-2292626-C (CA)
Inventor: SCOTT DAVID A
IPC: F16L7/00
Filed: 1998-06-09
Granted: 2006-12-05
Abstract: A spacer (18) for maintaining a pressure tube (12) in spaced relation with a calandria tube of a nuclear reactor. The spacer comprising a split ring (20) adapted to be disposed about the outer surface of said pressure tube. The ring has a central annular body portion (21) with a raised bearing surface (22) thereon adapted to contact the inner surface of said calandria tube and prevent contact between said outer surface and said inner surface. An annular land (24, 26) projecting from each side of said central body portion is adapted to receive a collar (30, 32) thereon effective to create an interference fit between said ring and said pressure tube and thereby constrain axial movement of said spacer on said pressure tube. The spacer of the present invention maintains its location on the pressure tube and does not suffer the axial movement which characterizes some conventional spacers. The bearing surface can have a coating to reduce ware and heat transfer.
Patent CA-2293105-C (CA)
Inventor: KRAWCZYK ANDREW
IPC: E04H13/00
Filed: 1999-12-23
Granted: 2003-09-23
Abstract: The invention provides a memorial plaque adapted for detachable mounting to a forward surface of a base, such as a cover slab of a crypt, a headstone or grave marker.   The plaque includes a marker block having an exposed face adapted to receive memorial indicia and a hollow back frame having a front wall with peripheral rearwardly extending side walls. The peripheral side walls have a back edge with profile mating the forward surface of the base thus defining a rearwardly open cavity between the base and front wall laterally bounded by the side walls. The close fitting of the frame protects the marker block from weather damage and vandalism. The marker block is releasably secured to the frame within the cavity with its exposed face adjacent a window in the front wall of the frame. Mounting brackets can be housed entirely within the cavity or hidden from view under removable ornaments to releasably mount the frame to the base. This enables the rapid removal of the blank marker block and replacement after memorial indicia have been applied.  Preferably the marker block is a stone slab with a polished exposed face that can be quickly marked with conventional sandblast methods. Alternatively, the blank marker block can be replaced with a previously completed block including any desired type of indicia. Mounting brackets for example can include a top bracket mounted adjacent an upper frame side wall, with a plate with connecting fasteners for securing the plate to the base. The plate may have an upper edge adapted to suspend the frame on the bracket. A locking device disposed on a lower frame side wall and on the lower end of the plate, releasably locks the plate and frame together. Optionally an externally mounted ornament can be secured to an outer surface of a wall of the frame with a fastener extending through said wall from the cavity, and for visual effect and secure mounting the outer surface of said wall includes a mating socket in which the ornament is disposed. Also optionally the plaque may include an auxiliary block having an exposed face adapted to receive memorial indicia, with the auxiliary block releasably secured to the frame within the cavity with its exposed face adjacent an auxiliary window in the front wall of the frame.
Patent CA-2294637-C (CA)
Inventor: AHLUWALIA YOUNGER
IPC: C03C25/10
Filed: 1998-06-22
Granted: 2002-10-01
Abstract: A structural article comprises a substrate having an ionic charge which is coated with a coating having essentially the same ionic charge. The coating consists essentially of a filler material and a binder material. The substrate is preferably fiberglass, the filler is preferably fly ash and the binder material is preferably acryl ic latex. The substrate is preferably bonded together using a mixture of urea formaldehyde  and standard acrylic. In a preferred embodiment, the coating comprises nearly 85% of the structural article and fly ash comprises approximately 85 % to 96% of the coating.</SDO AB>
Patent CA-2294903-C (CA)
Inventor: RECK GEORG
IPC: D21F3/04
Filed: 1998-07-01
Granted: 2008-10-21
Abstract: The invention provides a device for dewatering solid/liquid suspensions which improves on conventional devices having a multiplicity of deflection and press rolls which results in a large and expensive machine. The present invention provides a device for dewatering solid/liquid suspensions, the device comprising a pair of belts defining at least one dewatering zone, said dewatering zone including a wedge zone, and roll means for imparting both area pressure and line pressure on the pulp web formed by the pulp suspension, said roll means comprising a first and a second roll.
Patent CA-2300624-C (CA)
Inventor: CHEDRU ANTOINE-MARIE
IPC: B30B9/20
Filed: 2000-03-13
Granted: 2008-10-21
Abstract: Machine includes cylindrical tank (2-4) and compressing head (15, 16) with horizontal toothed roller (16) able to rotate around vertical axis of tank under action of driving mechanism (15). Force or couple from driving mechanism is permanently monitored and when exceeding predetermined value, roller is pulled upwards at a predetermined value and released.  Roller is then placed at top of waste and is rotated in opposite direction. An Independent claim is also included for the waste compressing machine.
Patent CA-2305540-C (CA)
Inventor: MOBLEY DONALD L
IPC: F16K27/08
Filed: 1998-10-01
Granted: 2009-09-01
Abstract: A gas valve apparatus is configured to receive a gas specific adapter. The apparatus includes a gas valve body (10) having a first keying mechanism (44), and a cap (12) coupled to the gas valve body (10). The cap (12) includes a keyed front face (16) having a gas outlet (18) configured to receive the gas specific adapter. The cap (12) also includes a second keying mechanism (48) configured to mate with the first keying mechanism (44) on the gas valve body (10) to permit the cap (12) to be coupled to the valve body (10).
Patent CA-2308174-C (CA)
Inventor: VINSON KENNETH DOUGLAS
IPC: D21H17/24
Filed: 1998-10-19
Granted: 2008-12-09
Abstract: Tissue paper webs useful in the manufacture of soft tissue products such as wipes and facial tissues, and processes for making the webs are described. The tissue paper webs include papermaking fibers, an antimigration material and an emollient lotion. Prefered antimigration materials include quaternary ammonium compounds. Preferred emollient lotions include a hydrocarbon emollient. The preferred process for making the preferred invention includes providing the antimigration material to the papermaking furnish and depositing the emollient lotion onto at least one surface of the dried tissue web that includes an antimigration material.
Patent CA-2310866-C (CA)
Inventor: BROYAN FREDERICK KENNETH
IPC: E04F17/00
Filed: 2000-06-06
Granted: 2006-12-05
Abstract: A lifting device for transporting items of personal property between floors of a building is provided which includes an a vertically adjustable outer frame, a pair of vertically adjustable spaced apart guide rails attached to the outer frame, a lift container having guide members positioned thereon to guide the lift container along said guide rails and to allow the lift container to move vertically along said guide rails, and a drive mechanism including a motorized drive pulley, a plurality of idler pulleys and drive belt. The drive belt is connected at one end to a top wall of said lifting container and is connected at an opposite end to the bottom wall of said lifting container.      The drive belt is in contact with and powered by the drive pulley such that operating the drive pulley in a first direction causes the lift container to move vertically upward and operating said drive pulley in a second direction causes the lift container to move vertically downward to desired locations on different floors of a building.
Patent CA-2311938-C (CA)
Inventor: CAPANNA FRANCO
IPC: B64D5/00
Filed: 1998-12-09
Granted: 2006-05-02
Abstract: The present invention relates to a system for the transformation of a traditional self-sustained horizontal take-off and landing aircraft into hybrid, integrated, self-sustained vertical take-off and landing and horizontal flight comprising, besides the propulsion system already provided in the aircraft, a hydraulic propulsion system, activating at least a blade rotor (1), to be used during the vertical takeoff and landing and transition phases, said hydraulic system being powered by the engines of the aircraft, and at least an auxiliary engine (2), provided in a rear position and/or under the aircraft, said at least an auxiliary engine being progressively tiltable and swingable between two limit positions, respectively vertical position and horizontal position, sai d standard propulsion means of the aircraft being deactivated during the vertical take-off and landing and the transition and activated during th e self-sustained horizontal flight, and said at least an auxiliary engine and said at least one auxiliary engine being operating during the vertical take-off and landing and the transition and deactivated during the self-sustained horizontal flight.
Patent CA-2320591-C (CA)
Inventor: LITTLE GARY R
IPC: F16F9/02
Filed: 2000-09-26
Granted: 2005-01-04
Abstract: The air damper includes a housing with cylindrical walls and a piston assembly reciprocating therein. The piston assembly includes an interior surface against which a seal abuts. The interior surface is textured in a grained pattern so that interstices are formed between the seal and the interior surface thereby forming an effective air passageway for damping. A cylindrical spacer spaces the interior surface from a retainer and the seal is engaged around the cylindrical spacer and between the retainer and the interior surface. An alternative embodiment inserts textile material through a damping orifice in order to vary the rate of damping.
Patent CA-2321962-C (CA)
Inventor: TARASOVA NADYA I
IPC: A61K38/19
Filed: 1999-02-26
Granted: 2014-07-15
Abstract: Les récepteurs couplés à la protéine G (GPCR) contiennent généralement sept hélices transmembranaires. La présente invention concerne des peptides synthétiques dérivés de ces hélices transmembranaires. Les peptides de la présente invention inhibent la fonction des GPCR en rompant leur structure. Dans certains modes de réalisation, des résidus chargés sont ajoutés à une extrémité dans le but de faciliter l'orientation correcte du peptide dans la membrane.
Patent CA-2325541-C (CA)
Inventor: SEMLA SUSAN J
IPC: A61K31/7048
Filed: 1998-03-06
Granted: 2001-10-09
Abstract: An extended release pharmaceutical composition comprises an erythromycin derivative and a pharmaceutically acceptable polymer, the composition has an improved taste profile as compared to an immediate release composition of the erythromycin derivative.
Patent CA-2325705-C (CA)
Title: Porte toile rigide
Inventor: GOLFIER ANDRE
IPC: A45C11/00
Filed: 2000-11-14
Granted: 2004-01-06
Abstract: Le transport des toiles de peintres lors de déplacements, ou pour des expositions, ou pour toutes autres raisons se fait a l'aide de couvertures, de sacs de boites de carton, n'est pas sécuritaire, les toiles peuvent êtres endom_ magées, est peuvent se brisés. Ainsi la présente invention remédie a tous ces inconvéniants, la fabrication du porte toile GOLAN simplifie le transport, et protège les toiles de tout dommage durant leurs transports