baber/WOPTO huggingface dataset:
Patent CA-2246809-C (CA)
Inventor: SCHULLER MARK W
IPC: F16K5/06
Filed: 1997-03-04
Granted: 2000-08-29
Abstract: A rotary ball valve assembly and method for forming utilizes a compression spring subjected to a non-torsional, axially directed compressive force to urge an annular seal (66) into sealing engagement with a rotatable ball and, while so subjected, inwardly deforming a tubular member attached to the housing by an electromagnetic force to form an annular abutment (76) retaining said compression spring.
Patent CA-2247555-C (CA)
Title: Ntsc interference detectors using comb filters that suppress dtv pilot carrier to extract ntsc artifacts
Inventor: LIMBERG ALLEN LEROY
IPC: H04N5/44
Filed: 1998-09-16
Granted: 2001-12-11
Abstract: A first comb filter differentially combines an I- or Q-channel baseband signal supplied as input signal to a co-channel NTSC interference detector for a DTV receiver with that signal as subjected to a first amount of differential delay. This generates a first comb filter response in which artifacts arising from synchronous detection of the co-channel interfering analog television signal are suppressed. The detector includes a second comb filter that combines the input signal with that signal as subjected to a second amount of differential delay to generate a second comb filter response in which artifacts of the co-channel interference are reinforced. The first and second comb filters both use the same type of linear combiner so the direct term of input signal is treated similarly in the first comb filter response and in the second comb filter response. First and second amplitude detectors detect the respectiveamplitudes of these comb filter responses. An amplitude comparator compares the first and second amplitude detection responses and indicates, when and only when the first and second amplitude detection responses differ more than a prescribed amount, that co-channel interference is of sufficient strength to be objectionable.
Patent CA-2252952-C (CA)
Inventor: WILLMS LOTHAR
IPC: A01N47/36
Filed: 1997-04-07
Granted: 2006-10-24
Abstract: Des composés de formule (I) et leurs sels, où R<1> à R<7> et A ont la signification mentionnée dans la revendication 1 et où, notamment, R<5> représente un reste acyle ou NR<4>R<5> représentent ensemble un reste hétérocyclique, conviennent comme herbicides et régulateurs de la croissance végétale. Leur production peut se faire selon des procédés analogues aux procédés connus, par utilisation de nouveaux produits intermédiaires de formule (II), (IV), (VI) ou (VII) (cf. revendication 5).
Patent CA-2254253-C (CA)
Inventor: MASSEY PHILLIP S
IPC: B65B55/20
Filed: 1998-11-18
Granted: 2004-06-29
Abstract: An inflatable dunnage air bag comprises a multi-layered paper bag and an inflatable bladder disposed within the multi-layered paper bag such that two sets of paper plies are disposed upon opposite sides of the inflatable bladder.      The multi-layered paper bag has at least one flap member extending outwardly from one set of paper plies and is adapted to extend from a first side of the inflatable bladder and be folded over and secured upon the other set of paper plies so as to be secured at a location disposed upon the other or second side of the inflatable bladder. An inflation valve is fixedly secured to the first side of the inflatable bladder so as to facilitate inflation thereof, the inflation valve thereby being disposed remote from the location at which at least one flap member is secured so as not to present additional weakening forces or stresses within the already high-stress flap securing region. Enhanced burst strength values are achieved with the inflatable dunnage air bag having such aforenoted interrelated structure.
Patent CA-2257286-C (CA)
Title: Vetement de compression therapeutique
Inventor: ROGERS AARON M
IPC: A61F13/06
Filed: 1997-06-03
Granted: 2003-09-09
Abstract: Le vêtement de compression thérapeutique (80) est fabriqué en une pièce de tissu flexible, pliable, léger de type Velcro? (15) ayant une région centrale destinée à envelopper partiellement une partie du corps, une pluralité de paires de bandes (11) intégrées à la région centrale et s'étendant vers l'extérieur dans des directions opposées à partir des deux côtés de la région centrale afin d'entourer la partie du corps en question. Le vêtement thérapeutique (80) peut être adapté à la jambe, en combinaison avec une chevillière (60) pour appliquer une compression thérapeutique à la jambe, à la cheville et aux pieds et un procédé de traitement de troubles nécessitant une thérapie compressive consiste à appliquer les vêtements de l'invention aux régions du corps indiquées.
Patent CA-2260118-C (CA)
Title: Method and apparatus for short arc welding
Inventor: HUTCHISON RICHARD
IPC: B23K9/10
Filed: 1999-01-19
Granted: 2002-07-23
Abstract: A short circuit arc welding system is disclosed. The control scheme uses a current command signal to drive the output current. The command signal is comprised of a long-term current command that sets the long-term current command level and a real-time or short-by-short current command. Arc voltage feedback is used to determine if the desired arc length is present and to adjust the long-term command. The-short-by-short current command is derived from real-time arc current feedback and is used to control the burn-off rate by an instantaneous, or short-by-short, adjustment of the current command. A function of the time derivative of arc power, less the time derivative of arc current, is used to detect, in real time, when the short is about to clear. A stop algorithm is employed that monitors the arc on a short-by-short basis. When the process is ending a very low current level is provided to avoid forming a ball. However, if a short is created, (indicated by a drop in arc voltage) after the low current level, a burst of energy is provided to clear of burn off the short. After the short is cleared, very low current is again provided to avoid forming a large ball. This is repeated until the wire stops and the process ends.
Patent CA-2265356-C (CA)
Inventor: KRAFT KLAUS H
IPC: E06B9/13
Filed: 1999-03-16
Granted: 2007-06-12
Abstract: A strong, flexible and vandalism-resistant panel is provided. The panel includes a flexible wire skeleton structure such as a chain link structure embedded in a layer of polymer material such as rubber, synthetic rubber or another suitable polymer material. The chain link structure is made from parallel flat helical link sections connected by curved cross-sections. The panel of the present invention is particularly useful as a curtain for a roll-up door or for panels used to cover the space disposed between two adjacent railroad car sections. The formed panels are flexible, cannot be dented, are substantially cut-proof and are highly vandalism- resistant.
Patent CA-2267137-C (CA)
Title: Elastic strand coating process
Inventor: KWOK KUI-CHIU
IPC: B05C5/00
Filed: 1999-03-29
Granted: 2005-03-15
Abstract: A method for applying fluids to a strand and useable for bonding adhesive coated strands to substrates in the production of bodily fluid absorbing hygienic articles, by drawing the strand along an isolated path, moving a fluid or adhesive fiber back and forth across a path of the strand as the fluid fiber is dispensed toward the strand, and capturing substantially all of the fluid fiber on the isolated strand, and in some applications contacting an adhesive coated strand with the substrate to bond the strand thereto. The adhesive fiber is vacillated back and forth across a path of the strand beyond opposing sides thereof to at least partially coat all sides thereof with adhesive. In bodily fluid absorbing hygienic articles, the methods substantially eliminate fabric stiffening and loss of moisture absorbing capacity thereof, provide substantially uniformly bonding along the axial dimension of the strand to ensure uniform bunching of fabrics, optimum fluid absorption, and comfort.
Patent CA-2281377-C (CA)
Title: Improved process for the production of vinyl acetate
Inventor: WILLIAMS BRUCE LEO
IPC: C07C67/055
Filed: 1999-09-07
Granted: 2008-12-09
Abstract: In a process for production of vinyl acetate by the reaction of ethylene, acetic acid and oxygen, ethylene is recovered from the gases withdrawn from the reactor and recycled such that the amount of ethylene in the combined feed to the reactor is at least 60 mol %.
Patent CA-2283847-C (CA)
Inventor: MURRAY GEOFFREY NEIL
IPC: E21B17/10
Filed: 1998-03-11
Granted: 2007-12-11
Abstract: A friction reducing tool for drilling applications having a plurality of rollers for about the periphery of the tool. The rollers have extensions which locate within cavities to prevent the rollers from passing from cavity to the exterior of the tool. The tool is formed in multiple parts having interengaging tongues which are joined together by passing a rod through bore. A groove is provided in outer component to enable rod to be inserted in bore.
Patent CA-2289163-C (CA)
Inventor: MEYER G RICHARD
IPC: C23F11/10
Filed: 1999-11-08
Granted: 2011-01-04
Abstract: This invention is directed to a zwitterionic water-soluble imine of formula: (see above formula)] wherein R1 is heterocyclyl, heteroaryl, aryl, arylalkyl, cycloalkyl or lower alkyl; R2 is alkyl, alkenyl, aminoalkyl, diaminoalkyl, hydroxyalkyl, alkoxyalkyl, thioalkyl, alkylthioalkyl or arylalkyl; R3 is hydrogen and lower alkyl, or R1 and R3 taken together form a cycloalkyl; p is 2, 3, 4 or 5; and Z is CO2-, OCO2-, SO3-, OSO3-, PO3- or OPO3- which are useful as ferrous metal corrosion inhibitors.
Patent CA-2289974-C (CA)
Inventor: PAHILA OLIVER S
IPC: A62C31/02
Filed: 1999-11-17
Granted: 2003-09-23
Abstract: In a particular embodiment disclosed in the specification a sprinkler has a sprinkler body with a passage having an orifice which is normally closed by a cap retained in position by a glass bulb thermally responsive element and a deflector spaced from the orifice and supported from the sprinkler body by a pair of arms. The deflector has a circumferential array of tines separated by openings and the openings located in the plane in the frame arms have a substantially teardrop shape with the larger end closer to the sprinkler axis having a width which is 120% to 160% of the width of the adjacent portions of the frame arms.
Patent CA-2290351-C (CA)
Title: System and method for automatically focusing the attention of a virtual robot interacting with users
Inventor: TACKETT WALTER A
IPC: G06N20/00
Filed: 1998-05-22
Granted: 2005-08-23
Abstract: A system is herein provided comprising mechanisms (114, 100, 110, 106, 107, 108, 200, 300) and methods of defining, creating, operating, and testing virtual robots ("BOT") (404). A virtual robot (404) as provided herein encompasses categories (510, 520, 530, 540, 550) and topics (710, 720, 730, 740, 750, 402, 820, 830, 840, 630) of natural conversation that can be encoded in a natural "script language" (108, 118, 120). During the course of operation, these categories (510, 520, 530, 540, 550) are activated according to the conversation (900 - 3002) taking place with a user. Different categories (510, 520, 530, 540, 550) are focused at different times according to changes in the conversation (900 - 3002). The system provides both automatic and explicit mechanisms (114, 100, 110, 106, 107, 108, 200, 300) for focusing categories (510, 520, 530, 540, 550) and topics (710, 720, 730, 740, 750, 402, 820, 830, 840, 630) during the course of conversation (900 - 3002). Additionally, if more than one category (510, 520, 530, 540, 550) seems appropriate to answer a particular user statement, the system provides mechanisms (114, 100, 110, 10 6, 107, 108, 200, 300) for selecting the most appropriate response (900 - 3002). Similarly, the system provides mechanisms (114, 100, 110, 106, 107, 108, 200, 300) for verifying the accuracy and appropriateness of the virtual robot's response (900 - 3002) by encoding test examples into the virtual robot script ( 108, 118, 120).
Patent CA-2290969-C (CA)
Title: Delayed-release dosage forms of sertraline
Inventor: FRIEDMAN HYLAR LEWIS
IPC: A61K31/135
Filed: 1998-06-16
Granted: 2004-02-17
Abstract: Delayed-release dosage forms of sertraline which reduce Tmax and reduce side effects. The dosage forms are, in general, spatially delayed by being sensitive to their position along the gastrointestinal tract, or temporally delayed by being delayed for a preset period, independent of their position along the gastrointestinal tract. In vitro tests for identifying such dosage forms are presented.
Patent CA-2290972-C (CA)
Inventor: SBASCHNIGG JOHANN
IPC: D21C9/18
Filed: 1998-05-09
Granted: 2006-12-12
Abstract: The invention relates to a device for dewatering and washing fibre stoc k suspensions with two counter-rotating rolls 2, 3, a stock feed 4, 5 and a stock discharge 6. It is mainly characterized by the headbox 4, 5 at the two rolls 2, 3 being arranged separately in the lower section of the rolls 2, 3, and a discharge screw 6 being foreseen for discharge of the filter mat below the gap between the two rolls 2, 3 and a washing zone 9", 10" in the upper part of the rolls 2, 3.
Patent CA-2294020-C (CA)
Inventor: HU THOMAS SHENG-SHYONG
IPC: G01N33/533
Filed: 1998-06-25
Granted: 2007-08-14
Abstract: A dual injector (28) for an automated immunoassay instrument is provided which allows the sequential detection for two different chemiluminescence labels within one instrument. The injector has four carefully designed orifices (76, 78, 80, 82). The orifices are designed to work in two pairs. Orifices one (76) and two (78) can be used to inject trigger reagents A and B which can trigger a chemiluminescent reaction, such as acridinium. Orifices three (80) and four (82) can inject trigger reagents C and D for triggering a chemiluminescent reaction, such as luminol.  The two pairs can be used in a sequential manner to generate signals in the wells of a cuvette. Thus, it is possible to run both acridinium and luminol based assays on one instrument. The injector is designed to fit into the wells of the cuvette and to inject the triggers in a manner which efficiently resuspends magnetic particles of one to eight microns in diameter. The design also prevents the contamination or carryover of trigger solutions from one orifice to another.
Patent CA-2294227-C (CA)
Title: Slitter rewinder machine for producing reels of weblike material and associated method
Inventor: BIAGIOTTI GUGLIELMO
IPC: B26F1/00
Filed: 1998-07-02
Granted: 2006-02-14
Abstract: The machine comprises: a pair of winding rolls (1, 3) defining a winding cradle (5); feed means (13) for feeding a weblike material (N) toward said cradle (5); slitter means (14) for slitting said weblike material (N) lengthwise; insertion means (55) for inserting a plurality of axially aligned tubular winding cores (A) into said winding cradle (5); and a slitting station (49, 51) situated upstream of said winding rolls (1, 3), with a plurality of tools (67) for dividing, at right angles to its axis, a tube (T) of great length into tubular cores (A) of limited length. The slitting station (49, 51) contains a mandrel (71) with means for inserting said mandrel (71) into said tube (T) and for withdrawing the mandrel from the tubular cores obtained by dividing up said tube.
Patent CA-2294410-C (CA)
Inventor: LAUDER ARTHUR W
IPC: F04B9/127
Filed: 2000-01-07
Granted: 2002-03-26
Abstract: A control system for a reciprocating device. The control system includes a switching valve having a fluid supply inlet, an exhaust outlet, a restrictor on the exhaust outlet, a drive line, a valve operable to connect one of the exhaust outlet and the fluid supply inlet to the drive line and a toggle for operating the valve, the toggle being movable by motive force through an arc between a first position in which fluid flow is from the fluid supply inlet to the drive line and a second position in which fluid flow is from the drive line to the exhaust outlet, the toggle passing through a middle position where fluid flow may flow from the drive line to the exhaust outlet and from the fluid supply inlet to the drive line.  A reciprocating device is provided that is operable to move in a first direction due to fluid pressure in the drive line and a second, opposed, direction due to a motive force activator when pressure in the drive line is reduced (exhausted). A trigger on the reciprocating device moves with the reciprocating device. A connector is disposed between the trigger and the toggle. The connector being operable to move the toggle into the first position when moving in the second direction and to move the toggle into the second position when moving in the first direction. The connector includes a spring arranged to transmit forces from the trigger to the toggle when the trigger is moving in the first or second direction (or both, with two springs), the spring storing energy while moving in the first or second direction to force the toggle through the middle position.
Patent CA-2298218-C (CA)
Inventor: THALENFELD DAVID R
IPC: A47F1/12
Filed: 2000-02-07
Granted: 2004-05-04
Abstract: A shelf organizing system for dividing flat merchandise display shelving. An extruded front rail member typically of generally L-shaped configuration is secured to the front of a shelf, providing a vertical barrier wall. A retention channel, preferably including one or more resilient retention flanges, is formed integrally with the front rail member. Divider elements, extruded in continuous lengths and cut to desired length for particular shelf width, are formed with a vertical flange and a horizontal stabilizing flange. The stabilizing flange is insertable in the retention channel, at any point along its length, and is tightly gripped therein to hold the divider element in any desired position. The divider element may be easily installed by pressing laterally into contact with merchandise to be segregated, and then moving the divider into the retention channel. Divider elements may also be formed advantageously of wire instead of plastic. The system facilitates maintenance of neat shelf displays, which has been proven to increase sales.
Patent CA-2303260-C (CA)
Inventor: AFFINITO JOHN D
IPC: C23C16/50
Filed: 1998-09-29
Granted: 2004-11-16
Abstract: D'une façon générale, l'appareil de cette invention se présente comme suit: (a) un boîtier d'évaporation éclair (116) muni d'un pulvérisateur de monomères (120) destiné à produire des particules de monomère (122), une surface d'évaporation chauffée (124) servant à créer une évaporite à partir des particules de monomère, et une sortie (128) pour évaporite; cette dernière est reliée à (b) une électrode (204) à décharge lumineuse qui crée un plasma à décharge lumineuse à partir de l'évaporite, le substrat (104) (c) étant disposé près du plasma à décharge lumineuse et servant à recevoir et à condenser par le froid le plasma à décharge lumineuse à sa surface. Le procédé de la présente invention consiste en ce qui suit: (a) effectuer une évaporation éclair d'un monomère liquide dans une sortie pour évaporite afin d'obtenir une évaporite; (b) acheminer l'évaporite vers l'électrode à décharge lumineuse pour créer un plasma de monomère à décharge lumineuse à partir de l'évaporite et; (c) condenser par le froid le plasma de monomère à décharge lumineuse sur un substrat et réticuler à sa surface le plasma à décharge lumineuse. La réticulation, qui est due aux radicaux créés dans le plasma à décharge lumineuse, achève l'autopolymérisation.
Patent CA-2305493-C (CA)
Title: Method for assessing the degradation of a video image input by a coding and/or storage and/or transmission system
Inventor: BAINA JAMAL
IPC: H04N19/89
Filed: 1998-10-01
Granted: 2006-12-12
Abstract: The invention concerns a method for assessing the degradation of a video image coded by blocks of picture elements or pixels, comprising the following steps: a) selecting an input image and determining its spatial activity (SA) in an analysis window according to the following sub-steps: i) determining for each block (n, m) the transformed coefficients Fn, m (i, y) by a block transform; ii) determining from the transformed coefficients Fn, m (i, y) each block spatial activity bsa; iii) determining the analysis window global spatial activity SA1; b) selecting the output image corresponding to the input image and determining said global spatial activity SA2 of the output image; c) comparing the spatial activities (SA2) and (SA1).
Patent CA-2308193-C (CA)
Title: Shock absorbing component and construction method
Inventor: SHORTEN MARTYN R
IPC: G10K11/16
Filed: 1998-10-21
Granted: 2006-12-19
Abstract: A shock absorbing component having a pair of surfaces with a plurality of inwardly extending indentations in the top and bottom surfaces. The indentations extend between the surfaces to provide support members for the shock absorbing component. At least some of the indentations are hemispherical. The surfaces may be formed of mesh material to allow the passage of gas or fluid therethrough. One or more inserts may be placed in the indentations. The shock absorbing component can be constructed by molding upper and lower shock absorbing component halves wherein the molds are configured to provide indentations in the top and bottom surfaces. The upper and lower halves are then joined to complete the shock absorbing component.
Patent CA-2310237-C (CA)
Title: Apparatus for the treatment of crankcase emissions materials in a positive crankcase ventilation system
Inventor: DIOTTE RONALD A
IPC: F02M25/06
Filed: 1998-02-09
Granted: 2004-11-30
Abstract: An apparatus (20) for the treatment of gases in a positive crankcase ventilation (PCV) system, in an internal combustion engine, is provided with a housing (25) defining a gas treatment chamber (70). At least one gas filtering medium is disposed in the chamber (70), and the gases from the engine crankcase are passed through the gas filtering medium in the chamber (70), before the gases are routed into the air intake portion (67) of the engine. In addition, the gases, after passage through the gas filtering medium, are passed through an ionization device (55).
Patent CA-2315217-C (CA)
Title: Foam extrusion apparatus and method with viscosity controls
Inventor: BREINDEL RAYMOND M
IPC: B29C48/07
Filed: 1998-12-17
Granted: 2007-10-09
Abstract: An extrusion system utilizes single (30) or tandem extruders (102 and 103) and a mixer-cooler (104) to extrude a foamable extrudate through a die (37) in a sealable chamber. The foamable extrudate is shaped and calibrated within the chamber (40). The product exits the chamber to atmosphere on a continuous basis through a submerged orifice in a water baffle immersion seal. The seal includes the submerged orifice with a free wheeling guiding system upstream of the orifice.  Immediately ahead of the guiding system, the parameters of the foam extrudate are sensed to control the configuration of the orifice on a continuous basis. Before the extrudate passes into the water baffle seal it moves over a floating dancer roll (65), the position of which controls a haul-off, such as a vacuum belt, at the tail end of the system. This avoids pushing on the extrudate.
Patent CA-2316376-C (CA)
Inventor: MATSUMOTO TAKASHI
IPC: B25J18/00
Filed: 1998-10-20
Granted: 2004-08-10
Abstract: An arm structure for anthropomorphic robots minimizes the occurrence of a singularity state of a shoulder joint assembly when the arm of the anthropomorphic robot is working normally thereby allowing the arm to operate smoothly. The position and posture of first through third joints (11), (13), (15) of a shoulder joint assembly (5) and the position of an elbow joint assembly (6) with respect to the third joint (15) are established such that the elbow joint assembly (6) is located above a horizontal plane lying through the point of intersection of the axes (10), (12), (14) of the first through third joints (11), (13), (15), when the shoulder joint assembly (5) is operated into a singularity state wherein the first axis (10) of the first joint (11) and the third axis (14) of the third joint (15) are aligned with each other and the elbow joint assembly (6) is positioned laterally of a torso (1).