baber/WOPTO huggingface dataset:
Patent CA-2185596-C (CA)
Title: Wear strip assembly for use in a waste water treatment facility
Inventor: WILCHER STEPHEN B
IPC: B01D21/18
Filed: 1996-09-16
Granted: 2001-02-20
Abstract: There is provided a wear strip assembly for use in a waste water treatment facility comprising an anchor plate secured to the bottom of a tank and a wear strip disposed around the anchor plate having a c-shaped cross section . The wear strip may be slid onto the anchor plate. These is also provided a waster water treatment system employing the wear strip assembly.
Patent CA-2188110-C (CA)
Inventor: SANKARAM AKELLA VENKATA BHAVAN
IPC: A61K36/18
Filed: 1996-10-17
Granted: 2004-01-27
Abstract: The invention relates to a preparation of azadirachtin, in a dry solid powder form, having a purity upto 88% ; an emulsion concentrate having upto 30% by weight of azadirachtin, and a process for preparing said azadirachtin dry powder from neem seeds/kernels, which comprising: (a) disintegrating the neem seeds/kernels into a powder; (b) subjecting the said powder to continuous extraction using methanol or aqueous methanol or ethanol (rectified spirit) or aqueous ethanol at ambient temperature; (c) concentrating the extract and stirring the concentrate with petroleumether or hexane and phase separating by conventional methods; (d) stirring the denser phase containing major quantity of azadirachtin with a water immiscible organic solvent and water as required depending on the solvent used for extraction and phase separating by conventional methods; (e) concentrating the organic phase and gradually adding the concentrate to petroleumether or hexane under stirring at ambient temperature (f), filtering under suction and drying under vacuum at a temperature in the range of 25 - 65°C. to obtain a neem seed/kernel extract as a powder having azadirachtin of 10-19% purity; (g) re~dissolving the product obtained in step (f) in a solvent and adding the solution to petroleumether or hexane at ambient temperature gradually under stirring yielding a white solid, which after filtration and drying under vacuum at 65°C. resulting in azadirachtin having 15-26% purity as a white powder (h), dissolving the azadirachtin (10-19%) from step (e) in an organic solvent and subjecting to column chromatography (silicagel) by stepwise elution using different compositions of hexane/petroleumether and ethylacetate leading to solid azadirachtin powder upto 49% (i) dissolving the azadirachtin having upto 49% purity in methanol, ethanol or acetonitrile and subjecting it to HPLC (C18 column) to produce azadirachtin of purity upto 88% in a solid powder form, and (j) and stirring the product of step (i) with solvents and emulsifiers with or without synergist and UV stabiliser to obtain the emulsifiable concentrate.
Patent CA-2192353-C (CA)
Title: Porcelaine a basse temperature de fusion
Inventor: HORNOR JOHN A
IPC: A61K6/06
Filed: 1995-12-01
Granted: 2005-11-08
Abstract: Composition de porcelaine à basse température de fusion destinée à être utilisée dans des prothèses dentaires, qui possède une température de fusion d'environ 700  DEG C +/- 50  DEG C et un coefficient de dilatation thermique compatible avec un substrat de métal ou de céramique. Ladite composition comporte, en pourcentage en poids, SiO2 à 57-61, Al2O3 à 6,5-11,5, Na2O à 10-11, K2O à 8-18, Li2O à 1-3, CaO à 1,5-4, BaO à 1,5-2,5, CeO2 à 0,5-2 et Tb2O3 à 0,5-2.
Patent CA-2192515-C (CA)
Inventor: YOSHIDA HIDEO
IPC: H04L9/08
Filed: 1996-12-10
Granted: 2000-11-21
Abstract: An identification sequence issuing device comprising a code converter portion for converting an identification sequence character string that may include letters, numerals, and the like, into a string of character codes having one-to-one correspondence to the characters in the character string, and a check and selection portion for selecting as an identification sequence the character string corresponding to a character code string that is determined to meet a Reed-Solomon code rule with each character code being a symbol of the Reed-Solomon code and the character code string length being the length of the Reed-Solomon code. The identification sequence is issued based on the Reed-Solomon code of a generating polynomial having a plurality of initial elements as roots, and for additional issuing, identification sequences are issued based on the Reed-Solomon code with the number of roots of the generating polynomial reduced by 1.
Patent CA-2194540-C (CA)
Inventor: REINHART EUGENE R
IPC: B23H9/00
Filed: 1995-07-06
Granted: 1999-05-04
Abstract: A metal section removing tool (10) separates a section of metal from a metal object (M) such as a turbine motor. The tool (10) separates an elongated section of metal from the object using a pivotally mounted cutting device (16) that cuts along a cutting arc ("B") with cutting arc axis ("A") aligned parallel to the longitudinal axis of the cutting device. Preferably, the tool (10) uses electric discharge machining to separate the metal section from the object (M). The tool (10) also includes channels (48, 50) formed in the cutting device (16) for directing the flow of a dielectric fluid to a cutting edge of the cutting device (16). The cutting method includes first securing a carriage at a fixed position with respect to the object and then pivoting the cutting device along the cutting arc ("B") to separate a section of metal from the object (M).
Patent CA-2196589-C (CA)
Inventor: HEAU CHRISTOPHE
IPC: B23B27/14
Filed: 1997-01-31
Granted: 2001-04-03
Abstract: Nitrure de titane dopé par du bore, cristallisant dans la même structure que  le nitrure de titane TiN, et ayant une microdureté Vickers supérieure à environ  50 GPa. Revêtement antiusure constitué d'un tel nitrure de titane dopé par du bore. Pièces, par exemple pièces métalliques, pièces en carbure de tungstène et cermets, compo rtant un tel revêtement.
Patent CA-2203608-C (CA)
Inventor: FINUCAN SEAN
IPC: A63C17/20
Filed: 1997-04-24
Granted: 2000-07-11
Abstract: A lock system is disclosed for use on an in-line roller skate to positively lock the wheels. The lock system includes a mounting member for mounting the lock to the chassis of a roller skate. The mounting member includes a movable abutment member having a plurality of abutments for selective engagement with the wheels.Hub projections are provided on the wheels for engagement with the abutment member. In another embodiment, the abutment member may comprise a plurality of spaced apart stops for interstitial between wheels to be locked. The arrangements have marked advantages over the existing systems in that the same are readily engagable with a minimum of effort. In this manner, the user can simply engage and disengage the lock device without any encumbrances typically associated with the prior art.
Patent CA-2204329-C (CA)
Inventor: WILLAUER DARRIN L
IPC: E21B33/127
Filed: 1997-05-02
Granted: 2005-03-22
Abstract: An external casing packer 10 is provided for positioning downhole along a tubular string in a well. Packer 10 includes a mandrel 12, an elastomeric sealing element 14, and an inflation chamber 26 for inflating the sealing element into sealing engagement with the sidewall of the well. Upper collar 22 and a lower collar positioned axially above and below the sealing element, respectively, and an upper end sleeve 40 and a lower end sleeve 62 of the sealing element are mechanically interconnected. One or more anti-rotational keys 44 rotational interconnect a collar with a respective sleeve. A circumferential groove 52 may be provided in the outer surface of the collar, and a similar circumferential groove 54 provided in the inner surface of the end sleeve. A retaining wire 46 may be passed through a hole 56 in the end sleeve and into the grooves to axially interconnect the collar with the end sleeve. The interconnection mechanism of the present invention does not rely upon welding, and may be reliably used when there is relatively little spacing between the outer diameter of the mandrel and the outer diameter of the packer body.
Patent CA-2209296-C (CA)
Title: Boite de confinement de gaz utilisee avec une tete de soudage
Inventor: CAMY FLORENT
IPC: B23K37/00
Filed: 1997-06-23
Granted: 2005-04-12
Abstract: Cette invention concerne une boîte de confinement disposée autour d'une tête de soudage (1) et comprenant en particulier un cadre fixe porteur d'un carénage (16) modelé à la forme de la pièce à souder (3), un couvercle (9) glissant sur le cadre (10), et une cloche (6) à renflement sphérique (7) solidaire de la tête de soudage (1), qui coulisse et tourne dans un manchon vertical (8) traversant le couvercle (9). Tous les mouvements de tête de soudage (1) sont donc autorisés, ce qui rend possible des trajectoires de soudage compliquées. Des joints d'étanchéité (15, 17) sont prévus.
Patent CA-2211425-C (CA)
Inventor: HARRY JEAN-MICHEL
IPC: A47J43/07
Filed: 1996-02-12
Granted: 2006-08-29
Abstract: An apparatus comprising a drive motor (8), two coupling devices (20, 28) linked to the motor and engageable by a whisk and a mixing arm (38) respectively, an electrical switch (71) operated by means of a button (67) having an "off" position, a number of "continuous on" positions and a "selective on" position, a vertically movable ejector (51), and a mechanical assembly (72) for preventing continuous operation when the mixing arm is in place. Said mechanical assembly comprises a movable member (74) which releases the ejector when the whisk is in place, said ejector having an engagement tab (53) enabling operation of the button when said ejector is in the raised position, and locks the ejector (51) in the lowered position when the mixing arm is in place. The engagement tab (53) of the ejector locked in the lowered position locks the button (67) on the side corresponding to its "continuous on" positions.
Patent CA-2212902-C (CA)
Inventor: JOYCE MICHAEL J JR
IPC: B61L23/00
Filed: 1997-08-12
Granted: 2001-01-16
Abstract: A method of preventing movement of a locomotive while personnel are working on the locomotive. The method includes placing the brakes of the locomotive under the control of a card reading control box, and providing personnel employed to work on the locomotive with identification cards readable by the box. Each worker inserts his or her card in the box before working on the locomotive, and the control box reads the cards and in response thereto maintains the brakes of the locomotive at full service until personnel have left the locomotive and the control box is cleared by workers again inserting their cards in the box, or by a master key in the possession of an engineer/operator of the locomotive.
Patent CA-2215800-C (CA)
Inventor: GERSHANIK TATYANA
IPC: A61K47/44
Filed: 1995-04-24
Granted: 2008-04-15
Abstract: The invention concerns a self-emulsifiable formulation (SEOF) comprising an oily constituent and a surfactant, the SEOF being characterized in that the oily constituent contains an oily vector and a cationic lipid and, optionally, a lipophilic oily fatty alcohol. The oil-in-water emulsion produced by mixing the SEOF comprises positively charged oil droplets.
Patent CA-2219708-C (CA)
Title: Synthesis of macrocyclic polymers with group iia and iib metal cyclic organometallic initiators
Inventor: HALL JAMES E
IPC: C08F297/04
Filed: 1997-10-29
Granted: 2006-12-19
Abstract: The invention is a practical process for anionically synthesizing commercially significant quantities of macrocyclic polymers from polar and/or non-polar monomers by using Group IIA and IIB metal cyclic organometallic initiators. Activation of the ring metal atom results in anionic polymerization of the monomers by addition into the initiator ring at the bonds between the atom and its two adjacent carbon atoms, the metal atom acting as a bridge between the two living ends of the propagating chain. Coupling of the cyclic polymer living ends by coupling agents produces macrocyclic polymers that are stable in air and moisture and that exhibit desirable properties, such as low viscosities at high molecular weights. Such macrocyclic polymers provide enhanced polymer processability during molding, extruding and the forming of films. Macrocyclic polymers terminated with coupling agents that also provide functional groups may be compounded to produce vulcanizable elastomeric compounds and articles that exhibit reduced hysteresis properties.
Patent CA-2228530-C (CA)
Title: Photopolymerizable composition for the production of flexographic printing forms for corrugated board printing
Inventor: KRASKA URSULA
IPC: C08L53/02
Filed: 1998-02-03
Granted: 2006-09-12
Abstract: A photopolymerizable composition for the preparation of flexographic printing forms for corrugated board direct printing comprising a radial (polystyrene-polybutadiene)n X block copolymer, with X = Sn or Si and n = 2 or 4, with an average molecular weight (M w) of 80,000-300,000, a molecular weight distribution (M w/M n) of 1.00-1.40, a content of di- block copolymers of less than 15% by weight, which is extended up to 50% by weight of a paraffinic oil.
Patent CA-2229127-C (CA)
Inventor: ZIA NINEV K
IPC: F23L17/00
Filed: 1998-02-09
Granted: 2001-06-12
Abstract: An improved furnace is provided which can be field modified to change the pressure drop across the inducer. The pressure drop is modified to accommodate vertical or horizontal venting and adequately lined and inadequately lined chimneys. A first rate of flow of combustion byproducts into the vent system is used when the chimney is adequately lined and a second relatively higher rate of flow is used when the chimney is inadequately lined. The rate of flow is changed by inserting or removing an obstruction in the flow of combustion byproducts. The obstruction could be a tab or choke placed at the inducer outlet or a similar device in the inducer inlet. When the tab is in place the flow of combustion byproducts is reduced. When the tab is removed, the flow rate increases. Alternatively, the inducer inlet could be adjusted to increase or decrease the amount of air flow through the inducer.
Patent CA-2237560-C (CA)
Inventor: TURGEON THOMAS A
IPC: A61B7/02
Filed: 1996-10-22
Granted: 2004-09-21
Abstract: An ergonometric chestpiece (12) for a stethoscope (10) adapted to receive auscultatory sounds from a body and adapted to be coupled to an earpiece (14) for a user.     The chestpiece is adapted to be grasped by a thumb and at least one finger of the user.     The chestpiece has a bottom surface (41) which is generally planar and is adapted to be placed near the body for receiving the auscultatory sounds. The chestpiece (12) has an upper portion opposite the bottom surface. The upper portion has a raised center portion (26) defining left and right indented gripping surfaces (28, 30) which form recesses defined by the left and right indented gripping surfaces and by a surface generally parallel to but opposite the bottom surface. The left and right indented gripping surfaces are adapted to receive the thumb and at least one finger of the user, respectively. The indented gripping surfaces have indented impressions adapted to be easily, securely and comfortably grasped by the thumb and fingers of the user. The indented gripping surfaces are each further defined by a protruding edge (31, 33) on the top surface of the raised center portion (26) which prevent the fingers of the user from slipping upward and thus prevent the chestpiece from slipping out of the user's hand. The raised center portion (26) forms a physical stop to prevent the thumb and fingers of the user from slipping forward and contacting the body when the thumb and the at least one finger grasp the raised center of the upper portion. The left and right walls may be concave. The ergonometric chestpiece (12) may be generally circular and the left and right walls are cylindrically concave around axes generally orthogonal to the bottom surface. The top surface of the raised center portion may be sloped with respect to the bottom surface, the top surface being closer to the bottom surface at the front of the chestpiece than at the rear of the chestpiece.
Patent CA-2244333-C (CA)
Title: System and method for multicast conferencing and online discussion groups
Inventor: AGGARWAL SUDHIR
IPC: H04L12/18
Filed: 1998-07-30
Granted: 2003-04-15
Abstract: A system and method for multicast conferencing and online discussion groups using a periodically determined a close-to-optimal Steiner spanning tree.Both the system and method are suitable for stationary and/or mobile group members.
Patent CA-2247727-C (CA)
Title: Improved process for saturated oligomer production
Inventor: STINE LAURENCE O
IPC: B01J27/16
Filed: 1998-09-21
Granted: 2007-11-13
Abstract: A process for the production of saturated oligomers by the oligomerization of light olefins to heavier olefins and the saturation of the heavy olefins is improved by the recycle of the heavy paraffins to the oligomerization zone. The recycle of the heavy paraffins improves the selectivity of the oligomerization for C g paraffin products and reduces catalyst fouling. The reduced catalyst fouling can be used to operate the oligomerization zone at lower pressure and facilitate its integration with a dehydrogenation zone for the production of the light olefin stream.
Patent CA-2252039-C (CA)
Title: Isatin derivatives as acetylcholinesterase inhibitors and analgesics
Inventor: SHIMSHOCK STEPHEN J
IPC: C07D401/12
Filed: 1997-03-07
Granted: 2002-12-24
Abstract: This application relates to compounds of formula (I), wherein R, X and Y are defined within, which compounds are useful for the treatment of memory dysfunction characterized by decreased cholinergic function, and for analgesia, pharmaceutical compositions containing the compounds and methods for making and using the compounds.
Patent CA-2253042-C (CA)
Title: Method of three layer injection molding with sequential and simultaneous coinjection
Inventor: GELLERT JOBST ULRICH
IPC: B29C45/16
Filed: 1998-11-05
Granted: 2007-04-17
Abstract: A method of multi-cavity valve gated three layer injection molding to form containers or preforms having a middle layer of a barrier material between inner and outer layers of a PET type material. The barrier material is injected through an annular channel in each heated nozzle simultaneously with the PET type material being injected through a central melt bore in each valve pin. This reduces cycle time and produces a thicker inner layer of PET.
Patent CA-2255115-C (CA)
Inventor: DITTRICH FRANK
IPC: G01C21/28
Filed: 1998-02-05
Granted: 2006-04-11
Abstract: The invention relates to a method for determining correction parameters for the measured values of a magnetic compass, which is built into a land craft for navigation purposes, and gives the azimuth a of the direction of motion of the vehicle; of a gradiometer giving the elevation e of the direction of motion of the vehicle in relation to the horizon; and of an odometer, giving the distance s travelled. In this method, two visually navigated test drives are carried out in different directions between known point of departure and arrival. The measured values (a, e, s) are replaced by corrected values (a', e', s') in accordance with the following: a' = a + A + B . sin a + C . cos a; e' = e - A2; S' = p. The correction parameters are determined by performing a vectorial comparison of the known direction and distance values (a', e', s') with the measured values. The correction parameters are as follows: A for declination and compass mounting errors in azimuth; B, C for hard and soft magnetic vehicle magnetism; A2 for mounting errors of the gradiometer in elevation; and p for a scale error of the odometer.
Patent CA-2258533-C (CA)
Title: Reel web turn-up device
Inventor: ADAMSKI BRIAN C
IPC: B65H19/26
Filed: 1997-04-29
Granted: 2005-04-12
Abstract: Two water jets cut a paper web (26) as it is led over a winder drive roll (36). The water jets are angled with respect to the cut so the water used in the cutting action is entirely directed onto the portion of the web which is severed. An adhesive material, for example an automatically applied tape (24), is introduced between the upper surface of the web (26) and a spool (28) for forming a new reel (32) of paper. The use of an adhesive causes the paper leader to engage with the spool (28), thus assuring a tight, uniform and consistent initiation of the web wrapped onto the new spool (28). An automatic tape applicator (22), similar to that used for taping cardboard boxes, may be used to insert a double-sided adhesive tape (24) onto the web (26) or into the nip (40) formed between the spool (28) and the winder drum (36).
Patent CA-2267778-C (CA)
Inventor: MOSING DONALD E
IPC: E21B21/01
Filed: 1997-09-26
Granted: 2005-11-22
Abstract: A multi-functional apparatus and method for drilling fluid and cementing operations to set casing (32) in a wellbore (12) for use on either top drive or rotary type rigs. The apparatus and method includes a fill-up and circulating tool (46), a cementing head assembly (47), and a wiper plug assembly (52). The fill-up and circulating tool (46) comprises a mandrel with a packer cup (29) fixedly attached to a sliding sleeve (26) disposed about the outside diameter of the mandrel. The cementing head and wiper plug assemblies are useable on any fill-up and circulating tool capable of being inserted into a casing. To fill the casing, the assembly is lowered from the rig such that a portion of the fill-up tool is inserted into the casing, the pumps are then actuated to flow fluid into the casing. To circulate fluid, the tool is lowered further such that the packer cup sealingly engages the inside diameter of the casing to allow fluid to flow through the casing, into the wellbore, and back to the fluid pumps. To cement the casing, the cement pump and hose assembly is connected to the cementing head to allow cement to be pumped through the fill-up and circulating tool and into the casing string. A cement plug assembly comprising a plurality of wiper plugs is connected to the outlet of the fill-up and circulating tool. The wiper plugs are then released at a predetermined time during the cementing process to provide a positive seal at the bottom of the casing string.
Patent CA-2268450-C (CA)
Title: Neurotrophin antagonist compositions
Inventor: TEHIM ASHOK
IPC: C07D471/06
Filed: 1997-10-20
Granted: 2008-08-05
Abstract: A pharmaceutical composition comprising a compound of formula (I) wherein R1 is selected from, inter alia, alkyl, aryl-loweralkyl, hetero-cycle-loweralkyl, loweralkyl-carbonate; optionally substituted amino;  ben-zimidaz-2-yl; optionally substituted phenyl; loweralkyl-(R5), (R6) wherein one of R5 and R6 is selected from H and loweralkyl and the other is selected from carboxy, carboxy-loweralkyl and loweralkoxycarbonyl;  NHCH2CH2OX wherein X represents an in vivo hydrolyzable ester; and R2 and R3 are independently selected from H, NO2, halo, di(loweralkyl)amino, cyano, C(O)OH, phenyl-S-, loweralkyl, and Z(O)OR7 wherein Z is selected from C and S and R7 is selected from H, loweralkylamino and arylamino;  or pharmaceutically acceptable salts or certain in vivo hydrolyzable esters or amides thereof, in an amount effective to inhibit neurotrophin-mediated activity, and a suitable carrier, is described. The compositions are useful to inhibit undesirable neurotrophin-mediated activity such as the neurite outgrowth that occurs in some neurodegenerative disease states.
Patent CA-2269978-C (CA)
Inventor: ROBBINS MARK ALAN
IPC: A01K29/00
Filed: 1999-04-26
Granted: 2002-12-03
Abstract: The present invention relates to a method for improving grazing distribution and an animal feed supplement for use therein. The method comprises the steps of identifying a plurality of underutilized rangeland areas and providing an animal feed supplement in a first underutilized rangeland area. The animal feed supplement attracts the livestock to the first underutilized rangeland area and encourages the livestock to graze once there.