baber/WOPTO huggingface dataset:
Patent CA-2278172-A1 (CA)
Inventor: SHEN PAUL
IPC: H04N7/173
Filed: 1998-01-21
Abstract: Selective video-on-demand access is provided to a virtually unlimited number of subscribers by partitioning the video program into an ordered sequence of N segments and providing the subscribers concurrent access to each of the N segments. A data stream representative of the video program is partitioned into N subsequences, each representative of one of the N segments. The data of each of the N subsequences is organized as an ordered sequence of elements. The elements of each of the N  subsequences are interleaved and the interleaved data stream is continuously transmitted over a video program distribution medium at a rate which renders the data representing each segment concurrently available to any subscriber having a receiver capable of selecting, assembling, and displaying the data of a particular segment.
Patent CA-2279030-A1 (CA)
Title: Method for providing quality of service for delay sensitive traffic over ip networks
Inventor: HERNANDEZ-VALENCIA ENRIQUE
IPC: H04L12/56
Filed: 1999-07-29
Abstract: A quality of service guarantee for voice and other delay sensitive transmissions within an Internet Protocol (IP) network is provided by identifying the IP network path utilized for IP packet transmission between source and destination edge devises and virtually provisioning IP network path bandwidth for priority voice traffic. Priority for voice packets and admission control of new voice calls (and other delay sensitive traffic) based on the remaining available capacity over the IP network path guarantees that high priority voice (and other delay sensitive traffic) meet stringent delay requirements. A Virtual Provisioning Server is utilized to maintain bandwidth capacity data for each path segment within the IP network and to forward the bandwidth capacity data to a Signaling Gateway. The Signaling Gateway determines whether to accept or reject an additional delay sensitive traffic component based upon available bandwidth capacity for an IP network path. The Signaling Gateway then signals the originating source edge device as to its determination to accept or reject.      Quality of Service guarantees concerning acceptable delay and fitter characteristics for real-time transmission over an IP network are therefore provided without the need to directly signal the individual IP routers over which an IP network path is established.
Patent CA-2280604-A1 (CA)
Title: Feed distribution for low velocity air density separation
Inventor: BIELAGUS JOSEPH B
IPC: B07B4/02
Filed: 1999-08-19
Abstract: Air is drawn upwardly through a vertical air separation chamber with an open bottom. Material to be separated is introduced into the rising stream of air. Material having a smaller ballistic cross-section rises, while heavier material falls through the open bottom. The air stream is controlled to below about 1,500 feet per minute. Tie dispersion of the material is accomplished with a jet of air taken from a plenum connected to an air recirculation system. The air jet is introduced immediately below the material inlet to the chamber. The jet of air breaks up and disperses the material. An air recirculation system includes a fan which draws air out of the top of the air separation chamber by way of a hydrocyclone. The air extracted from the hydrocyclone is reintroduced at the bottom of the air separation chamber from a surrounding plenum.
Patent CA-2282776-A1 (CA)
Title: Method and apparatus for high speed analog to digital conversion
Inventor: WORDSWORTH GARY BRYAN
IPC: H03M1/14
Filed: 1999-09-17
Abstract: A high speed analog-to-digital converter utilizes a fine resolution ADC to digitize the low band component of an analog video signal to produce a fine resolution signal and a coarse resolution ADC to digitize the full spectrum of the analog signal and produce a coarse resolution signal. The coarse resolution signal is subtracted from the fine resolution signal to generate a summed signal containing a quantization error, which is filtered through a low pass digital filter to filter out the high band component and pass the quantization error. The filter output is summed with the coarse resolution signal to restore the fine resolution of the low band, producing a digital output signal that has a resolution suitable for high definition applications.
Patent CA-2283795-A1 (CA)
Inventor: KENJO YUKIKO
IPC: A61Q19/08
Filed: 1998-03-04
Abstract: L'invention concerne un procédé d'évaluation d'agents de revitalisation de la peau, servant à améliorer l'état de la peau ou à empêcher une détérioration de cet état, ou des préparations externes pour la peau contenant ces agents. Le procédé consiste à utiliser des animaux présentant au moins un site de peau abîmé, afin de préparer des moyens d'évaluation adéquats des agents ou préparations ci-dessus, puis à utiliser une indication d'un changement dans l'étendue de la structure fasciculée du collagène dermique avant et après application des agents ou préparations ci-dessus, sur le site de peau abîmé.
Patent CA-2285081-A1 (CA)
Inventor: VOS ERIC JOHANNES
IPC: C09D163/00
Filed: 1998-03-24
Abstract: Carboxyl functional polyester resins obtainable by reaction of (a) at least a compound of formula (I) wherein x 1 wherein R1 and R2 each may represent an alkyl group having from 1 to 4 carbon atoms or wherein R1 and R2 may form together the remainder of cyclic cycloalkyl group (A1), optionally mixed with minor amounts of a corresponding compound of formula (I) wherein x=0, or anhydride thereof (A2), (b) at least one diol compound B, comprising two aliphatic hydroxyl groups, which may each independently be a primary or a secondary hydroxyl group; (c) optionally one dihydroxymonocarboxylic acid compound C, comprising a tertiary aliphatic carboxyl group and two aliphatic hydroxyl groups which may each independently be primary or secondary hydroxyl, and (d) optionally a trihydroxyalkane (D1) or tetrahydroxyalkane (D2); the molar ratio of compounds (A1+A2):B:C:D1:D2 being X+Y+2Z+3Q+P:X:Y:Z:Q, wherein X ranges from 1 to 8, Y ranges from 0 to 8, Z ranges from 0 to 4 and Q ranges from 0 to 3 and wherein P ranges from 1 to 5, preferably from 1 to 3 and is most preferably equal to 1, at a temperature of from 100 to 240, until essentially all the hydroxyl groups as initially present in the reaction mixture have been reacted; linear or branched polyglycidyl esters derived therefrom and powder coating compositions comprising one or both type of these ester types.
Patent CA-2286155-A1 (CA)
Inventor: OHNEMUS RANDALL E
IPC: A61B5/154
Filed: 1998-04-08
Abstract: Ce dispositif pour prélèvement sanguin comporte un contenant pour échantillon (40), un bouchon d'étanchéité (41) et un porte-aiguille (30). Le contenant pour échantillon (40) est en verre et sa face extérieure est revêtue d'un matériau polymère. L'aiguille porte un composé diminuant le frottement. Le bouchon d'étanchéité (41) dans lequel est ménagée une cavité destinée à loger l'aiguille est également doté d'un organe (73) destiné à diriger l'écoulement de la cavité interne susmentionnée vers l'intérieur du contenant pour échantillon.
Patent CA-2286386-A1 (CA)
Title: Railway truck wear plate
Inventor: WEBER EARL K
IPC: B61F5/12
Filed: 1999-10-14
Abstract: A wear plate for a side-frame column surface of a railcar truck assembly side frame has corner relief at the corners of the surface in proximity to the bolster and the friction shoe in the friction-shoe pocket, which friction shoe is still operable to damp the harmonic oscillations of the railcar by contact with the surface of the wear plate, but the bolster lands in proximity to the wear plate are protected from harm and wear through indiscriminate contact with a sharp corner of the wear plate.
Patent CA-2287350-A1 (CA)
Inventor: BUEKERS VALERE
IPC: G02B6/00
Filed: 1998-04-15
Abstract: A closure assembly for encapsulating splices between optical fibres of one or more fibre optic cables, the assembly comprising first and second hollow cover portions having mating surfaces which can be sealed together around the fibre optic cable(s), wherein one or both of the cover portions is provided with splice retaining means for securing the said optical fibre splices.
Patent CA-2291255-A1 (CA)
Inventor: BAIER KATHLEEN GRIESHOP
IPC: A61P17/10
Filed: 1998-05-29
Abstract: The present invention relates to an antimicrobial wipe comprising a porous or absorbent sheet impregnated with an antimicrobial cleansing composition, wherein the antimicrobial cleansing composition comprises from 1.001 % to 5.0 % by weight of the antimicrobial cleansing composition, of an antimicrobial active; from 0.05 % to 10 % by weight of the antimicrobial cleansing composition, of an anionic surfactant; from 0.1 % to 10 %, by weight of the antimicrobial cleansing composition, of a proton donating agent; and from 3 %  to 99.85 %, by weight of the antimicrobial cleansing composition, water;  wherein the composition is adjusted to a pH of from 3.0 to 6.0; wherein the antimicrobial cleansing composition has a Gram Positive Residual Effectiveness Index of greater than 0.5; and wherein the antimicrobial cleansing composition has a Mildness Index of less than 0.3. The present invention also relates to an anitmicrobial wipe impregnated with an antimicrobial cleansing composition which has a Gram Positive Residual Effectiveness Index of greater than 0.5. It also relates to an antimicrobial wipe impregnated with an antimicrobial cleansing composition which has a One-wash Immediate Germ Reduction Index of greater than 1.3. The invention also encompasses methods for cleansing skin and providing residual effectiveness versus Gram positive bacteria using these products.
Patent CA-2291562-A1 (CA)
Inventor: HOWARD ROBERT G
IPC: E21B17/06
Filed: 1999-12-03
Abstract: A heavy-duty logging and perforating cablehead for coiled tubing. The cablehead includes an upper and lower housing which are shearably connected by shear pins. An actuating piston is slidably disposed in the housing. When the piston is in a running position, the piston holds a lug in locking engagement with the upper and lower housings such that the shear pins cannot be sheared. When the piston is moved to a releasing position, the lugs are released so that the upper and lower housings may be separated, thereby shearing the shear pins. Actuation of the piston is accomplished by pumping fluid down the coiled tubing and through a flow path in the cablehead and by applying pressure to the piston.
Patent CA-2291695-A1 (CA)
Title: Method and system for controlling fuel pressure in a common rail fuel injection system
Inventor: WEISMAN S MILLER II
IPC: F02D41/38
Filed: 1998-05-06
Abstract: A system and method for controlling the fuel pressure in a common rail fuel injection system (14) which electronically controls a variable output high pressure pump (16) based upon engine speed, torque and actual common rail pressure inputs, as well as the present system voltage, thereby providing simple yet stable control of the fuel pressure in the accumulator (20) of the common rail system (14) and making the system relatively insensitive to supply voltage fluctuations from the power source which controls the high pressure pump (16).
Patent CA-2293624-A1 (CA)
Title: Pressure connector for pipes
Inventor: FOERING HERBERT
IPC: F16L21/02
Filed: 1998-06-05
Abstract: The invention relates to a pressure connector for pipes, comprising a pressure fitting having at least one section that is bulged crosswise and which accommodates a sealing ring, in addition to a first cylindrical section connected thereto and facing the insert side, a second cylindrical section facing away from the insert side forming a stop and exhibiting a smaller internal diameter than the first cylindrical section, and a line pipe whose smooth end area comes to rest on the stop of the second cylindrical section of the pressure fitting once it has been inserted into said pressure fitting. A fixed, tight pressure connection is formed using a pressure tool with at least two pressure cheeks encompassing the pressure fitting upon closure. During pressing, the pressing cheeks act upon the annular bulge and the sealing ring fitted therein, in addition to the first cylindrical section of the pressure fitting. The invention provides that the steep running side (8) of the annular bulge (4) facing the second cylindrical section (9) runs into the abovementioned section (9) in a rounded form, devoid of irregularities. The internal diameter (10) of the second cylindrical section is the same as the internal diameter (13) of the inserted line tube (3) with a tolerance width of plus one half of the thickness of the wall (15) to minus 1 x the wall thickness of the inserted line pipe (3).
Patent CA-2296106-A1 (CA)
Title: Vending machine to select composition of pack and its method of use
Inventor: CREDLE WILLIAM S JR
IPC: G07F9/10
Filed: 1998-06-18
Abstract: A vending machine is provided for packaging a plurality of articles into a unitary package. This vending machine includes a packaging area and a packer. The packer affixes a carrier to the discrete articles in the packaging area to form the package. The formed package is then discharged from the vending machine. The present vending machine therefore provides for forming a plurality of articles into a package within a single vending machine. A consumer can select what articles, such as different brands of beverage containers, which are combined to form the package. Also, the number of articles for each package can be selected by the consumer.
Patent CA-2296838-A1 (CA)
Inventor: KOBAYASHI NAOYA
IPC: H01M10/28
Filed: 1996-09-04
Abstract: A rechargeable lithium battery comprising at least a cathode, a separator, an anode, and an electrolyte or electrolyte solution integrated in a battery housing, characterized in that said cathode is constituted by a specific powdery cathode active material having a large specific surface area and a primary particle size of 0.5 µm or less. The cathode active material is obtained in a manner of mixing a salt of a transition metal in and dissolving said salt in an aqueous solution containing at least a water-soluble polymer material to obtain a product, and baking said product to form said powdery cathode active material as said cathode active material of said cathode, or in another manner of mixing a salt of a transition metal in a monomer capable of forming at least a water-soluble polymer material, polymerizing said monomer to obtain a polymerized product, and baking said polymerized product to form a said powdery cathode active material as said cathode active material of said cathode. A process for the production of said rechargeable lithium battery.
Patent CA-2298477-A1 (CA)
Title: Multi-frequency photoelectric detection system
Inventor: JUDS SCOTT
IPC: G01S17/931
Filed: 1998-07-22
Abstract: Collision avoidance apparatus (28, 30) is mounted on a host vehicle (20) to detect the presence of an adjacent vehicle (22) within a monitored zone (24, 26). A sensor module (30) includes a plurality of discrete sensor systems for monitoring unique portions of the monitored zone (24, 26), each of which comprises an emitter (52) emitting a fixed frequency modulated beam (58) of light energy (54) with a predetermined burst length into its unique portion of the monitored zone (24, 26), and a receiver (68) having a field of view (62), substantially aligned with the emitted beam (58) to produce a fixed optical overlap area (A), and for sensing light energy (66) and generating a received signal. A frequency generator (48) produces two or more predetermined different fixed frequencies for use by the emitter (52) to emit beams (58) at each frequency. A phase shifter (70) produces a phase shifted reference signal with a different predetermined phase delay relationship to each fixed frequency. A mixer (72) mixes each received signal and each phase shifted reference signal to produce demodulation signals from for each frequency. A processor (40) receives and processes accoupled logic level detection signals generated by a limiter amplifier (76) for each discrete sensor system at each of the fixed frequencies to determine the presence of a vehicle (22) in the monitored zone (24, 26). The fixed frequency and the predetermined phase delay are chosen to produce a null received signal resulting from reflections of the emitted beam from uniformly distributed atmospheric backscatter within the optical overlap area (A).
Patent CA-2299756-A1 (CA)
Title: Trolley wheel tread and flange
Inventor: WAEDEKIN CURT J
IPC: B61B3/00
Filed: 2000-02-28
Abstract: A trolley wheel for a load lifting apparatus that is movable along a rail having a horizontal supporting surface. The wheel includes a crowned tread surface for rolling contact with the rail and a flange for stabilizing the tread surface in position on the rail.      The flange includes a substantially crowned realigning portion for realignment of the wheels on the rail with minimal contact or binding. The flange also includes an undercut portion for added clearance between the flange and the rail. Preferably, the crowned tread surface and crowned realigning portions are heat treated for improved wear resistance. The undercut may also be heat treated for added toughness.
Patent CA-2302011-A1 (CA)
Title: Process for enhancing the optical purity of 2r-[1-hydroxy-1-trifluoromethyl-3-cyclopropylpropyn-2yl]-4-chloroaniline
Inventor: REIDER PAUL J
IPC: C07C215/70
Filed: 1998-09-01
Abstract: A process for enhancing the purity of 2R-[1-hydroxy-1-trifluoromethyl-3-cyclopropylpropyn-2-yl]-4-chloroaniline comprising the formation of an acid addition salt which is capable of rejecting the racemate in the selected organic solvent.
Patent CA-2303744-A1 (CA)
Inventor: GRUPIDO SALVATORE N
IPC: F16C21/00
Filed: 2000-04-04
Abstract: A universal joint for interconnecting a pair of rotating shafts and a method of assembling the universal joint. The universal joint includes a pair of yokes secured to the shafts and a cruciform for interconnecting the yokes. Both yokes are bifurcated to define a pair of laterally-spaced legs. Each leg has an aperture which .includes a first bore adapted to receive a bearing cup therein and a second bore into which an end portion of the bearing cup extends. Each bearing cup rotatably supports one of four orthogonal trunnions extending from the cruciform. With respect to each of the yokes, a pair of axially-aligned trunnions, with bearing cups mounted thereon, are installed into the apertures so as to support the cruciform between the legs of the yoke. Thereafter, a retention member is inserted in the second bore of each aperture such that one surface of the retention member rests on the bearing cup, After the rotary axis of the first shaft is aligned with the rotary axis of the second shaft, an edge portion of the legs surrounding the second bore of each aperture is deformed to define one or more projections which engage the opposite surface of the retention member. The projections secure the retention members within the second bore of the apertures, thereby axing the axial position of the bearing cups and trunnions relative to the yoke.
Patent CA-2305505-A1 (CA)
Title: Accelerometre a plaque mobile, avec moteur electrostatique de contre-reaction
Inventor: MOREAU MAURICE
IPC: G01P15/125
Filed: 1998-10-07
Abstract: Accéléromètre asservi à plaque mobile utilisant des varations de capacitance pour détecter le mouvement d'une masse, comprenant: au moins une électrode fixe (3) rigidement solidaire d'une armature (2), au moins une électrode mobile (5) suspendue par des ressorts (7) à l'armature (2), en regard de chaque électrode fixe (3, 4), de manière à former au moins une capacité (8, 9), chaque électrode mobile (5) étant susceptible de se déplacer par rapport à chaque électrode fixe (3, 4), sous l'effet d'une accélération, créant ainsi une variation de chaque capacité (8, 9), et un circuit électronique (10) permettant de régler la raideur électrostatique, et comprenant un système d'asservissement (20) détectant la variation de chaque capacité (8, 9) et réagissant en appliquant une tension de contre-réaction entre chaque électrode mobile (5) et l'électrode fixe (3, 4) en regard de ladite électrode mobile (5), caractérisé en ce que les ressorts (7) ont une raideur choisie de manière à placer délibérément la fréquence de résonance mécanique au-delà de la fréquence haute de la bande d'intérêt, et que le circuit (10), qui permet le réglage de la raideur électrostatique, est adapté pour ramener la fréquence de résonnance apparente dans la bande d'intérêt.
Patent CA-2306969-A1 (CA)
Inventor: HURAS MATTHEW A
IPC: G06F9/50
Filed: 2000-04-28
Abstract: A computer system dynamically scales back latch requests for system resources.  Tasks seeking access to system resources each dynamically determine the probability that the task will gain access to the latch relating to a given system resource. Where the task estimates that its probability is below a defined threshold, the task will suspend itself for a defined sleep time.  The task dynamically adjusts the length of the sleep time based on the number of times the task enters the suspended state and on the relative changes in the estimated probability that the task will gain access to the resource.
Patent CA-2311577-A1 (CA)
Title: Transfer apparatus
Inventor: KADLEC JAN
IPC: B21D43/05
Filed: 2000-06-14
Abstract: The invention provides a transfer apparatus for transferring workpieces between die stations comprising a striker cam driven by a press ram, a rotary gear urged to rotate by the striker cam, a shaft extending from the rotary gear and having a distal end, and a finger bar pivotally coupled to the distal end and assuming arcuate travel above the die stations in response to rotation of the rotary gear. The transfer apparatus also includes a linear cam including a slot, a pusher plate including a cam follower extending therefrom and disposed in the slot, moveable horizontally in response to vertical displacement of the linear cam, and a finger bar, moveable into and out of engagement with the workpieces, in response to the horizontal movement of the pusher plate.
Patent CA-2311991-A1 (CA)
Inventor: CALAMATAS PHILIP J
IPC: H02H7/08
Filed: 2000-06-19
Abstract: A motor protection circuit for an electric motor driven by a pulse width modulated amplifier. It has a capacitor and a first conduction path connected to a first terminal of the capacitor and connectable to a first conductor. It also has a second conduction path connected to the second capacitor terminal and connectable to a second conductor. There is a DC voltage difference between the first conductor and the second conductor. There is a third conduction path between the first terminal and the second terminal. The third conduction path having a resistance which is lower than the resistance of the first conduction path plus the resistance of the second conduction path. The third conduction path passes through a switch which has an input connection to be opened and closed thereby. The input connection is for receiving a signal indicating a motor overload condition, whereby the capacitor discharge switch is closed when the signal indicates the motor overload condition and the capacitor discharge switch is opened when the signal does not indicate the motor overload condition.      A charge on the capacitor increases when the signal does not indicate the motor overload condition and the charge on the capacitor decreases when the signal indicates the motor overload condition. The circuit also has a voltage comparator receiving the voltage of the capacitor. The voltage comparator produces a signal for shutting down the motor.