baber/WOPTO huggingface dataset:
Patent CA-2212858-C (CA)
Title: Cup lid having combined straw slot depression and tear back lid retainer
Inventor: FREEK MICHAEL
IPC: B65D47/08
Filed: 1997-08-13
Granted: 2003-12-02
Abstract: A drink-thru lid for a drinking cup including an annular mounting portion for sealingly engaging the drinking cup, wherein the annular mounting portion includes a downwardly extending annular skirt. The lid further includes a tear-back section extending from the annular skirt to a hinge portionlocated in a medial portion of the lid. The tear-back section includes a raised protrusion extending outwardly from an upper surface of the lid. A recess is further formed in a medial portion of the lid on the opposite side of the hinge portion from the raised protrusion, wherein the tear-back section may be torn away from the lid on its sides and pivoted about the hinge portion until the raised protrusion is received within the recess for holding said pivotal flap open. The raised protrusion and the recess are shaped such that the raised protrusion is frictionally engaged by the end walls of the recess. The recess further includes a straw slot formed therein, wherein the straw slot is defined by two sloping side walls extending from an upper surface of the lid and converging together at a frangible juncture formed in the deepest portion of the recess.
Patent CA-2213093-C (CA)
Inventor: BURNS ROBERT J
IPC: B60T8/171
Filed: 1997-08-14
Granted: 2002-05-28
Abstract: The invention relates to a wheel or hub for use on vehicles which incorporate an anti-lock braking system. The hub includes a ferrous hub having an outboard and inboard section. A plurality of equidistantly spaced radially extending grooves are formed in the end face of the inboard section of the hub forming a plurality of radially extending pulse teeth, a sensor detects the rotation of the pulse teeth and provides this information to a logic unit of the ABS system.
Patent CA-2213725-C (CA)
Title: Method for optimized transmission of atm cells via connection hops
Inventor: WALLMEIER EUGEN
IPC: H04L49/111
Filed: 1997-08-22
Granted: 2003-10-14
Abstract: A method for alleviating the loss of ATM cells when employing the weighted fair queuing scheduling method wherein the ATM cells are subjected to a peak bit rate limitation in a further stage of the method, and wherein such limitation is of the time interval of two read counters that sample the memory elements of a calendar in a cyclical time grid.
Patent CA-2215219-C (CA)
Title: Disc-type rotary engine
Inventor: KAJINO YUKIO
IPC: F02B53/00
Filed: 1997-09-25
Granted: 2000-07-04
Abstract: A rotary disc having at least two radial concave portions and two radial convex portions on one end is opposed at the concave/convex surface to a concave/convex surface of a non-rotary disc having the concave/convex surface of the same shape, and one of the discs is made axially slidably and engaged to the other resiliently.  Two variable volume chambers formed between the concave/convex surfaces of the two disc are used as a set of engine chambers in which a suction port is disposed to a slope of the first chamber on the side that the concave/convex surfaces of discs get into engagement, and the exhaust port is disposed to the slope of the second chamber on the side that the concave/convex surfaces of discs get out of the engagement. A gas reservoir combustion chamber communicating by way of a compression communication channel is disposed between the first chamber and the second chamber, and the compression stroke and the exhaust stroke are conducted simultaneously, while the expansion stroke and the suction stroke are conducted simultaneously in the two concave portions of the rotary disc passing through the two chambers.
Patent CA-2220070-C (CA)
Title: Transaction recovery in a value transfer system
Inventor: EVERETT DAVID BARRINGTON
IPC: G06Q20/36
Filed: 1996-05-14
Granted: 2003-04-15
Abstract: A value transfer system for transferring value in transactions between electronic purses as electronic cash has a transaction failure recovery procedure whereby a pending log stores transaction messages after they are sent. On detection of an error an interface device (IFD) can issue a payment resume command to re-send the last transaction message and resume the transaction.
Patent CA-2229244-C (CA)
Inventor: YAO LI-HO
IPC: H05K5/02
Filed: 1998-02-11
Granted: 2001-04-10
Abstract: A seat for a cassette memory is disclosed. The seat has a bracket having two opposed posts, a plurality of pins formed through a central portion thereof for connection with said cassette memory, a recess defined therein and at least one L-shaped support formed on an outer face of one of said two posts; each one of said two posts having a guiding track defined therein and a positioning spring securely disposed within said track; a push rod movably mounted along a side of one of said two posts and having a slotted area defined therein; a cutout defined in a first distal end thereof and at least one opening corresponding to said L-shaped support of said bracket and defined in communication with said slotted area; and the eject knob securely connected to a second distal end of said push rod; a recoil spring compressibly mounted on said push rod and between a face of said eject knob and said L-shaped support; and a driving plate pivotally mounted onto said bracket and having a foot movably received within said cutout of said push rod and a pushing plate detachably connected with said cassette memory and detachably received in said recess of said bracket. With such an arrangement, the seat is able to receive and eject a cassette memory with ease.
Patent CA-2233166-C (CA)
Inventor: MITCHELL WILLIAM M
IPC: A61K47/18
Filed: 1996-10-17
Granted: 2009-02-17
Abstract: The invention provides a method of inducing a mucosal immune response in a subject, comprising administering to the subject an amount of antigen-encoding DNA effective to induce a mucosal immune response complexed to a transfection-facilitating cationic lipid and an amount of vitamin D3. In the method of inducing a mucosal immune response, the antigen-encoding DNA can encode an antigen that is expressed on the surface of transfected cells and mimic critical elements of infection. DNA encoding the envelope glycoproteins of viral pathogens is used in the present method. Cationic lipids are bifunctional molecules consisting of one or more hydrophobic chains covalently linked to a cationic grouping in which there is coordination of positively charged groups with a negatively charged phosphate oxygen of the DNA chain forming an ionic charge complex. Two preferred examples of cationic lipids are DOGS (dioctadecylamidoglycylspermidine) and TEDBI (N,N,N',N'-tetramethyl N,N'-bis(2-hydroxyethyl)-2,3-dioleoyloxy-1,4-butanediammonium iodide). The invention also provides a composition, comprising an amount of DNA encoding an envelope antigen or envelope-associated antigen of a pathogen complexed to a cationic lipid. More specifically, the invention provides a composition, comprising an amount of DNA encoding an envelope antigen of HIV complexed to a cationic lipid.
Patent CA-2235808-C (CA)
Inventor: DENHAM EDWARD CHARLES
IPC: G02B5/10
Filed: 1996-10-23
Granted: 2004-05-25
Abstract: L'invention concerne un réflecteur comportant un cadre (1) sur lequel est étirée une feuille souple de matériau réfléchissant (2) en vue de définir une surface réfléchissante incurvée de géométrie prédéterminée. Ce cadre (1) définit des sections arquées (3, 4, 5, 6) dont des parties supportent la feuille (2) et reposent sur la surface de géométrie prédéterminée. Au moins l'une des sections arquées (3, 4, 5, 6) se déforme pour permettre le déplacement de la partie de support respective de la feuille et ainsi le réglage de la tension de la feuille souple (2).
Patent CA-2236965-C (CA)
Inventor: NII YOSHIHIDE
IPC: B60L50/16
Filed: 1996-10-28
Granted: 2001-05-01
Abstract: A power output apparatus (20) of the present invention includes a clutch mot or (30), an assist motor (40), and a controller (80). The clutch motor (30) and  the assist motor (40) are controlled by the controller (80), so as to enable  the power output from an engine (50) to a crankshaft (56) and expressed as t he product of its revolving speed and torque to be converted to the power expressed as the product of a revolving speed and a torque of a drive shaft (22) and to be output to the drive shaft (22). The engine (50) can be driven  at an arbitrary driving point defined by a revolving speed and a torque, as long as the energy or power output to the crankshaft (56) is identical. A desired driving point that attains the highest possible efficiency with respect to each amount of output energy is determined in advance. In order t o allow the engine (50) to be driven at the desired driving point, the controller (80) controls the clutch motor (30) and the assist motor (40) as well as the fuel injection and the throttle valve position. Such control procedures of the power output apparatus (20) enhance the energy efficiency of the whole power output apparatus (20).
Patent CA-2237829-C (CA)
Title: Radially expandable stent for implanting in a body vessel in the area of a vascular branch
Inventor: VON OEPEN RANDOLF
IPC: A61F2/856
Filed: 1998-05-15
Granted: 2006-11-28
Abstract: An expandable stent for implanting in a body vessel in the area of a vascular branch, having an enlarged radial opening (22) which is premounted on a balloon catheter (30) for implanting in a vessel, whereby the balloon catheter (30) has a cavity (33) for leading through a guide wire (34) which protrudes from the cavity (33) and the stent (20) in the centre of the enlarged opening (22).
Patent CA-2237842-C (CA)
Title: Method of preparing 2-trifluoromethoxybenzene sulphonamide
Inventor: LANTZSCH REINHARD
IPC: C07C303/40
Filed: 1996-11-08
Granted: 2007-01-16
Abstract: 2-Trifluoromethoxy-benzenesulphonamide, of the formula (I), (see formula I) which can be used as intermediate for the preparation of certain herbicidally active compounds is obtained in very high yield and high purity by a process in which halogenated trifluoromethoxy-benzenesulphonamides of the general formula (II) (see formula II) in which X1 represents halogen and X2 represents hydrogen or halogen are reacted with hydrogen in the presence of a catalyst and in the presence of a diluent and, if appropriate, in the presence of an acid acceptor at temperatures between 0°C and 200°C ("dehalogenated"), the resulting compound of the formula (I) is isolated in the customary manner in the event that "X2=halogen" and convened into a pure, crystalline product by treating it with a protic polar organic liquid and isolated by removing the liquid component by means of filtration with suction in the event that "X2=H".
Patent CA-2238709-C (CA)
Title: A bulk material loading wagon
Inventor: BRUNNINGER MANFRED
IPC: E01B27/00
Filed: 1998-05-27
Granted: 2005-09-20
Abstract: A bulk material loading wagon (1) comprises a wagon frame (2) supported on on-track undercarriages (3), on which there are arranged a storage box (5) with a base conveyor belt (9) running in the longitudinal direction of the wagon and selectively operable in two transporting directions (18,19) and a transfer conveyor belt (10) arranged so as to be inclined and projecting over one wagon end (13). A chute (21) for discharging bulk material (6) is provided at the more remote wagon end (11) from the transfer conveyor belt (10) in the vicinity of a deflection end (20) of the base conveyor belt (9). A bulk material hopper (22) is associated with the chute (21) and a charging conveyor belt (8) which is displaceable in the longitudinal direction of the wagon is provided above the bulk material hopper (22).
Patent CA-2239006-C (CA)
Title: Container with dispensing spout and method for making same
Inventor: TOBOLKA STEFAN
IPC: B65B9/20
Filed: 1996-11-28
Granted: 2006-03-21
Abstract: A container (10) for fluids or liquids such as beverages and the like is formed of flexible material such as plastic and includes a body (12) having an internal reservoir (14) and a tubular spout (30) extending upwardly from the body. The spout has an internal passage (32) in fluid communication with the reservoir. A constriction (34) in the container creates a low pressure zone in the passage downstream of the constriction as liquid flows from the reservoir into the spout. Means are also provided to inflate the spout as fluid flows along the internal passage. A method of forming fluid-filled containers from a tube (58) of flexible material and a method of forming a self-supporting fluid-filled container are also disclosed.
Patent CA-2243139-C (CA)
Title: Iron-based powder mixture for powder metallurgy and process for preparing the same
Inventor: OZAKI YUKIKO
IPC: B22F1/10
Filed: 1998-08-28
Granted: 2006-08-22
Abstract: An iron-based powder mixture for powder metallurgy, comprising: an iron-based powder, and from 0.05 to 0.50 % by weight of a thermoplastic resin powder which comprises 50 % or more by weight of units of at least one monomer selected from the group consisting of acrylic esters, methacrylic esters, and aromatic vinyl compounds, and whose average primary particle size is from 0.03 to 5 µm, whose average agglomeration particle size is from 5 to 50 µm, and whose average molecular weight measured by the specific viscosity of a solution is from 30000 to 5000000.
Patent CA-2251338-C (CA)
Inventor: GADONNIEX DENNIS MICHAEL
IPC: G08B13/24
Filed: 1997-06-05
Granted: 2008-10-14
Abstract: Un élément magnétique semi-dur est formé en cristallisant au moins partiellement un matériau métalloïde-fer doux amorphe (20). Le processus de chauffage (26, 30, 34, 38, 40) destiné à terminer la cristallisation comprend un étage d'oxydation contrôlée (26, 30) qui améliore le niveau du flux d'induction rémanente qui est obtenu lorsque l'élément magnétique traité se trouve dans un état entièrement magnétisé.
Patent CA-2254853-C (CA)
Title: Compositions and methods for screening antimicrobials
Inventor: HALE CYNTHIA A
IPC: C07K7/06
Filed: 1997-05-21
Granted: 2002-12-03
Abstract: A method for screening compounds for antimicrobial activity is described tha t utilizes bacterial protein-protein binding in vitro. The method may be performed using immobilized elements and the immobilization may be carried o ut using a variety of immobilization means e.g., columns, beads, adsorbents, nitrocellulose paper, etc.) in order to screen large libraries of compounds.
Patent CA-2262149-C (CA)
Inventor: DUA KARAN
IPC: B60Q1/04
Filed: 1999-02-16
Granted: 2002-04-23
Abstract: An adjustable lamp mounting system consisting of a lamp housing, a mounting bracket and a mounting stud having an enlarged head and a guiding portion adjacent the enlarged head. The enlarged head of the mounting stud is configured to substantially correspond to the height of the interior chamber created between the mounting bracket and lamp housing, thereby maintaining the mounting stud guiding portion within a mounting bracket slot.
Patent CA-2262792-C (CA)
Title: Mechanical prosthetic valve, and methods of its construction and operation
Inventor: SCHRECK STEFAN G
IPC: A61F2/24
Filed: 1997-07-23
Granted: 2000-05-16
Abstract: A prosthetic mechanical valve includes a base portion defining a through blood flow pathway closed by at least a pair of valve leaflets. The valve leaflets are pivotally carried by the base portion and movable in response to dynamic blood fluid pressures between a first position at which the leaflets close blood flow through the pathway and a second open position allowing blood flow in the pathway. A pair of confronting magnets are carried one to each of the pair of valve leaflets and attract one another. The magnetic forces of attraction between the pair of magnets impart a biasing torque to the valve leaflets which tends to synchronize pivotal movements of the leaflets, cushions their sealing contact, quiets valve operation, and biases the leaflets toward a third partially open position. As a result, under conditions of nearly balanced blood fluid pressures across the pair of valve leaflets they anticipatorily open toward their third position to improve pumping effectiveness. Also, at about the end of a blood pumping stroke, the valve leaflets anticipatorily close from their fully open position toward the third position to reduce regurgitation flow and quiet the valve.
Patent CA-2271045-C (CA)
Inventor: PREY MARTIN
IPC: B23B31/02
Filed: 1998-03-20
Granted: 2004-11-23
Abstract: A chuck for rotary tools with a cylindrical chucking shank (2) encloses such shank with a basic body (4). A radical through-hole (7) in basic body (4) serves to receive a clamping screw (10) which applies pressure to a clamping member (9) which is seated inside through-hole (7) between clamping screw (10) and chucking shank (2). Clamping member (9) is provided with a radial projection (16) and through-hole (7) with a cross-sectional narrowing (17) along its inner end. In between is an elastically compressible spring element (18) which, due to its return force, lifts clamping element (9) away from chucking shank (2) and pushes it back into through-hole (7) when it is not under tension from the clamping screw.
Patent CA-2275853-C (CA)
Title: Computer directed identification of paraproteins
Inventor: BINDER STEVEN R
IPC: G01N33/53
Filed: 1999-06-21
Granted: 2002-06-11
Abstract: The present invention is generally directed to the analysis of biological samples. More particularly, the present invention is directed to automated sample analysis for paraproteins using immunosubtraction, capillary electrophoresis and Fourier transformation analysis.
Patent CA-2281226-C (CA)
Title: Process for synthesizing .alpha.-substituted ring systems
Inventor: GURTLER CHRISTOPH
IPC: C07C269/06
Filed: 1999-08-31
Granted: 2008-02-19
Abstract: Using the process according to the invention, it is possible to provide, with few reaction steps, a novel route to .alpha.-substituted ring systems which optionally have further substituents.
Patent CA-2282381-C (CA)
Title: Process for the preparation of nicotinic acids
Inventor: VANDREVALA MARAZBAN H
IPC: C07D213/82
Filed: 1998-02-18
Granted: 2007-06-12
Abstract: The present invention relates to an improved process for the preparation of nicotinic acids represented by structural formula (I) which are prepared by reacting a nicotinic amide compound having formula (a) under acidic conditions with a nitrite salt. In the process of the invention the groups R1, R2, and R3, in the compounds are independently selected from the group consisting of hydrogen and halogen atoms, and R4 is selected from the group consisting of hydrogen, lower alkyl and aryl. The process provides the nicotinic acid compounds in improved yields.
Patent CA-2282841-C (CA)
Inventor: SCHONBERGER OYVIND L
IPC: C12P21/04
Filed: 1998-02-27
Granted: 2008-12-02
Abstract: There is disclosed a method of recovering factor VIII/vWF-complex which is characterized in that factor VIII/vWF-complex from a protein solution is bound to a cation exchanger and is recovered by step-wise elution of factor VIII/vWF-complex, which particularly contains high-molecular vWF multimers, as well as a factor VIII/vWF-complex obtainable by means of cation exchange chromatography.
Patent CA-2284162-C (CA)
Title: Asymmetric hydrogenation of .beta.-keto esters
Inventor: STUERMER RAINER
IPC: C07C67/31
Filed: 1999-09-28
Granted: 2009-01-13
Abstract: Enantiomerically pure .beta.-hydroxy esters are prepared by a process in which .beta.-keto esters are reacted with hydrogen in the presence of catalysts of the formula LRuX2 where X is halogen, acetate, allyl, methallyl, 2-phenylallyl, perchlorate, trifluoroacetate, tetrafluoroborate, hexafluoroantimonate, hexafluorophosphate, hexafluoroarsenate or trichloroacetate, L is a bidentate phospholane of the formula I     where B = a bridging link with 1 - 5 carbon atoms between the two phosphorus atoms, R1 = H, C1 - C6-alkyl, aryl, alkylaryl or SiR2 3, R2 = alkyl or aryl, m = 0 or 1, R3 = H or OR4, and R4 = R1, with the proviso that if m= 1 then R3 = H and if m = 0 then R3 .noteq. H.
Patent CA-2294132-C (CA)
Inventor: ROBERTS LEE R
IPC: B01D21/24
Filed: 1998-06-19
Granted: 2008-04-29
Abstract: The present invention provides methods and apparatus that include piping system of headers (14) and laterals (16) providing flow to a central point so that sludge can be removed from areas where it accumulates most rapidly. The adaptable nature of the piping system additionally permits the number of collection laterals (16) and orifices therein to be varied to suit the sludge accumulation characteristics of the sludge basin (50). Multiple port valves (10) are disclosed that permit the selective connection of the headers (14) to an outlet.
Patent CA-2294936-C (CA)
Inventor: ZOLOCK MICHAEL J
IPC: G01F1/84
Filed: 1998-06-02
Granted: 2003-06-17
Abstract: Circuit permettant d'utiliser des capteurs résistifs (109, 110) et en particulier des capteurs de température résistifs, tout en réduisant à un minimum le nombre de conducteurs (308, 309, 310) nécessaire pour mesurer les capteurs multiples. Lesdits capteurs multiples sont connectés en série et la tension est mesurée à chaque noeud dans la connexion en série des capteurs. Un dispositif de commutation (F¿0?) s'ouvre ensuite pour couper l'un des capteurs de la tension d'alimentation (5v), ce qui permet une mesure de la résistance du conducteur entre les capteurs de température et un émetteur (20) situé à distance. Les résistances mesurées des capteurs sont ensuite compensées à l'aide de la résistance de conducteur mesurée pour obtenir une résistance à compensation de longueur de conducteur pour chacun des capteurs résistifs multiples.
Patent CA-2298366-C (CA)
Inventor: HENRY BRIAN
IPC: B32B1/08
Filed: 2000-02-11
Granted: 2008-04-01
Abstract: The present invention relates to a hose construction containing a fluoroplastic barrier and a hydrogenated acrylonitrile-butadiene rubber layer.  The hose comprises (1) a rubber layer comprising (a) hydrogenated acrylonitrile-butadiene rubber; (b) from 2 to 15 phr of an organophosphonium salt; (c) from 5 to 30 phr of trioctyl trimellitate; and (d) from 5 to 30 phr of a dialkyl diether glutarate; (2) a barrier layer comprised of a terpolymer derived from tetrafluoroethylene, hexafluoropropylene and vinylidene fluoride, wherein the barrier layer is directly adhered to the rubber layer.
Patent CA-2307816-C (CA)
Title: Buffering data that flows between buses operating at different frequencies
Inventor: SU SAM
IPC: G06F13/36
Filed: 1998-10-27
Granted: 2002-02-12
Abstract: A "virtual FIFO" system for use in buffering data between transacting buses (12, 18) that transfer data at different rates includes a memory device (31) and a controller (35) that partitions the memory device into multiple regions (32-1, 32-2, 32-N), each of which is configured to operates as a distinct data buffer.
Patent CA-2307983-C (CA)
Title: Head tube junction on a bicycle
Inventor: LAM DUHANE
IPC: B62K19/02
Filed: 2000-05-09
Granted: 2006-07-25
Abstract: A junction for the head tube of a bicycle frame with top tube and down tube members is fabricated in such a way that the top tube and down tube members are jointed. The method of mitering the top tube and down tube members to form the requested joint is cutting off a portion of walls of both the top tube and down tube members at the head ends to form a miter joint. The method of mitering provides for optimum contact area and ease of manufacturing, especially for tubes with non-traditional cross-sectional shapes.
Patent CA-2311631-C (CA)
Title: Net shaped and crosslinked articulating bearing surface for an orthopaedic implant
Inventor: PLETCHER DIRK
IPC: B29C43/16
Filed: 2000-06-14
Granted: 2008-08-12
Abstract: A method of manufacturing an articulating bearing surface for use in an orthopaedic implant is disclosed. A block of ultra-high molecular weight polyethylene is irradiated with sufficient radiation energy to crosslink at least a portion of the ultra-high molecular weight polyethylene. The irradiated block is placed within a reforming apparatus having a complimentary articulating bearing surface. The block is heated and pressed against the complimentary articulating bearing surface, thereby forming the articulating bearing surface.