baber/WOPTO huggingface dataset:
Patent CA-2219294-C (CA)
Inventor: BADEJO IBRAHEEM T
IPC: C09B48/00
Filed: 1997-10-24
Granted: 2007-01-09
Abstract: This invention relates to a process for the preparation of quinacridone pigments by (a) heating a reaction mixture comprising (i) a 2,5-dianilinoterephthalic acid, a 2,5-dianilino- 3,6 -dihydroterephthalic acid, or a 2,5-dianilino-3,6-dioxo-1,4-cyclohexadiene-1,4-dicarboxylic acid; (ii) about 0.1 to about 15 percent by weight, based on component (a)(i), of one or more sulfonyl-containing derivatives of 2,5-dianilinoterephthalic acid, 2,5-dianilino-3,6 -dihydroterephthalic acid, and/or 2,5-dianilino-3,6-dioxo-1,4-cyclohexadiene-1,4-dicarboxylic acid; and (iii) about 3 to about 20 parts by weight, per part of component (a)(i), of a dehydrating agent, with the proviso that if either component (a)(i) or component (a)(ii) is a 2,5-dianilino- 3,6 -dihydroterephthalic acid or derivative thereof, reaction step (a) additionally comprises an oxidation step; (b) drowning the reaction mixture from step (a) with a liquid in which the quinacridone pigment is substantially insoluble; and (c) isolating the quinacridone pigment.
Patent CA-2219608-C (CA)
Inventor: GOCH BERNARD J
IPC: B01F7/16
Filed: 1997-10-27
Granted: 2002-01-15
Abstract: An air/liquid mix regulator is disclosed for use in a frozen confectionary dessert dispensing machine.  The mix regulator regulates the amount of liquid and air entering the freezing chamber of the frozen dessert machine.  The regulator has a single aerator tube having both an air inlet passage and a liquid inlet passage which are least partially divided.  The aerator tube has different liquid inlet openings at each end so that it is invertible and usable with differing liquid viscosities.  The aerator tube is engageable with a base section of the regulator and has a check valve therein to prevent the backflow of aerated mix into the storage chamber to prevent frothing and foaming in the storage hopper.  The single check valve is located in an area of the base section that takes advantage of the relatively warmer liquid in the storage hopper to prevent freezing and sticking of the check valve.  The regulator has a twist-lock feature to prevent self-ejection when the check valve is closed and a pressure differential occurs between the freezing chamber and the storage hopper.  The regulator provides self priming, prevents freeze-ups, disassembles easily for cleaning, is able to feed a wide viscosity range of mix, and maintains a stable desired overrun for producing a dispensed product with consistent, desired serveability, while increasing profits of the vendor.
Patent CA-2224251-C (CA)
Inventor: KATO HIROYUKI
IPC: G02B27/28
Filed: 1997-12-09
Granted: 2002-02-26
Abstract: An optical filter module with isolator function that has no polarization dependent property and in which no polarization mode dispersion occurs.  An optical filter is arranged between a first optical input and output terminal and a second optical input and output terminal.  A polarization splitting unit is arranged between the first optical input and output terminal and the optical filter, for separating the light into a first straight polarized light and a second straight polarized light which are in parallel to each other and which have polarization states perpendicular to each other.  A first polarization rotation unit is arranged between the polarization splitting unit and the optical filter, for rotating the polarization state of the first straight polarized light by 90° and then sending a first rotated light to the optical filter. A second polarization rotation unit is arranged between the optical filter and the second optical input and output terminal, for rotating light passing through the optical filter by 90° and then sending a second rotated light.  A polarization combining unit is arranged between the optical filter and the second optical input and output terminal, for combining the first rotated light with the second rotated light and outputting the resultant to the second input and output terminal.
Patent CA-2226668-C (CA)
Title: Aromatic esters of polyalkylphenoxyalkanols and fuel compositions containing the same
Inventor: CHERPECK RICHARD E
IPC: C07C229/60
Filed: 1997-05-12
Granted: 2005-10-11
Abstract: Aromatic esters of polyalkylphenoxyalkanols having formula (I), or a fuel soluble salt thereof, wherein R is hydroxy, nitro or -(CH2)x-NR5R6, wherein R5 and R6 are independently hydrogen or lower alkyl having 1 to 6 carbon atoms and x is 0 or 1; R1 is hydrogen, hydroxy, nitro or -NR7R8, wherein R7 and R8 are independently hydrogen or lower alkyl having 1 to 6 carbon atoms; R2 and R3 are independently hydrogen or lower alkyl having 1 to 6 carbon atoms; and R4 is a polyalkyl group having an average molecular weight in the range of about 450 to 5,000. The compounds of formula (I) are useful as fuel additives for the prevention and control of engine deposits.
Patent CA-2237987-C (CA)
Title: Cle a positionnement reglable
Inventor: WHITLEY LOWELL BLAKE
IPC: B25B23/16
Filed: 1997-10-02
Granted: 2000-12-26
Abstract: Outil à positionnement réglable (par exemple, clé), dont la queue est maintenue dans un plan horizontal constant, par rapport au plan horizontal de la tête d'outil. Le verrouillage et le déverrouillage du système s'effectuent par un axe cannelé reliant la tête et la queue de l'outil.
Patent CA-2238760-C (CA)
Inventor: FIOL ANDREAS
IPC: A61M15/00
Filed: 1996-12-19
Granted: 2004-10-26
Abstract: A metering apparatus for metering for example a medicament requires a device with which the number of metering portions is displayed. The known display devices however are not suitable for a metering apparatus having two housing portions which are rotatable relative to each other. The mechanical counter for a metering apparatus of that kind comprises at least one spindle with rotary locking, whose axis extends in parallel relationship with the axis of the metering apparatus and which is disposed in the region of the peripheral surface of the apparatus. The spindle is automatically driven by way of a transmission assembly when the metering apparatus is actuated. The number of metering portions already discharged and the number of metering portions permitted in total is quasi-continuously displayed by the mechanical counter. The transmission ratio of the transmission assembly can be designed to cover a wide range. The cursor serving for display purposes can be reset on the spindle. The permissible period of use of a metering apparatus which can be used for a plurality of supply containers can be reliably viewed.
Patent CA-2239510-C (CA)
Inventor: MUTH JAMES C
IPC: A47B53/02
Filed: 1996-10-30
Granted: 2003-05-06
Abstract: A mobile carriage system includes a pair of end rails (12a, 12c) fixed to a support surface and one or more intermediate rails (12b) located parallel to  and between the pair of end rails (12a, 12c). At least one carriage (10) is supported for movement on the end and intermediate rails (12a-c). The carria ge (10) includes an elongated frame (17) that spans all of the rails. At least two drive units, each including a pair of wheels (23) and supporting the carriage on a different one of the rails are provided. The drive units are operatively connected to a drive shaft (35) which extends across a plurality  of the rails. The drive shaft (35) and each of the drive units are coupled b y a drive gear (33) on the shaft which has a substantially smaller diameter th an the diameter of driven gears (29) on the units. An electric motor (41) is operatively connected to the drive shaft (35).
Patent CA-2245912-C (CA)
Title: Data exchange system by contactless communication between a terminal and remote powered portable objects
Inventor: WEHOWSKI FREDERIC
IPC: G07C9/00
Filed: 1997-12-08
Granted: 2005-07-26
Abstract: The terminal (100) comprises a coil (102) co-operating with data transmitting/receiving means (108-118). The portable object (200) comprises a remote powered electric circuit including: a coil (202), for picking up the modulated magnetic field derived from the terminal or for generating in response a modulated pick-up in this magnetic field; converting means, comprising a rectifying stage (210) and a filtering stage (212), transforming the magnetic field picked up by the coil and a direct voltage supply (<u>d</u>); and data transmitting/receiving means, the receiving means comprising means (218) for demodulating the amplitude of the signal picked up by the coil, these amplitude demodulating means operating on the signal (<u>b</u>) delivered in output of the rectifying and filtering stages. The coils (102, 202) each form part of a tuned resonant circuit (106, 208) radiating the field in free space. The amplitude modulation is a slight depth modulation, with a modulation rate typically not more than 50 %.
Patent CA-2246031-C (CA)
Title: Boat
Inventor: DUST NORMAN
IPC: B63B35/71
Filed: 1998-08-28
Granted: 2003-08-05
Abstract: A boat includes a body having one or two paddling positions. The body is sufficiently narrow at the paddling positions to provide ac comfortable paddling width. A bow extends forwardly and converges to became progressively narrower from the forward paddling position. A stern extends rearwardly and diverges to become progressively wider from the rearward paddling position. The stern has two hulls positioned rearward of the at least one paddling position and separated by a connecting surface. The connecting surface extends rearwardly and upwardly from the rearward paddling position upwardly to an upper remote end that is out of the water at the stern, thereby reducing drag.
Patent CA-2253225-C (CA)
Title: On-site pipe coating process
Inventor: GIBSON MARK W
IPC: B05D7/14
Filed: 1998-11-10
Granted: 2001-01-30
Abstract: A pipe treatment process that is a portable, field-applied, coating process. The process produces a two-layer composite protective coating system with a finished, seamless, chemical bond within its interlayers as well as to adjacent coating materials. The process is suitable for metallic substrates, which may or may not be cathodically protected, and maybe used to coat new or repair previously coated metallic substrates.
Patent CA-2259449-C (CA)
Inventor: CARCILLO JOSEPH A
IPC: A61P31/00
Filed: 1997-07-01
Granted: 2004-03-02
Abstract: L'invention concerne des méthodes qui permettent de traiter l'insuffisance rénale aiguë d'origine septique/endotoxinique, ainsi que la vasoconstriction rénale et mésentérique provoquée par les catécholamines. Ces méthodes consistent à administrer à un patient une dose thérapeutique efficace d'une composition qui contient au moins un médicament ayant une activité inhibitrice de la phosphodiestérase de type IV, ou une combinaison de celle-ci avec un excipient pharmaceutiquement acceptable.
Patent CA-2259500-C (CA)
Inventor: PATTERSON JIMMY L
IPC: C08J9/14
Filed: 1999-02-08
Granted: 2008-04-22
Abstract: A stable polyester polyol composition is provided comprising a phthalic anhydride-initiated polyester polyol, a blowing agent selected from the group consisting of C4-C6 hydrocarbons and mixtures thereof, and a compatibilizing agent having an HLB of from about 7 to 12. The compatibilizing agent is selected from the group consisting of oxyethylated fatty acids having a general formula of R n COO(EO)x-H, wherein R n is a C14 to a C26 alkyl chain, EO  represents an ethylene oxide unit and x is from 5 to 12. The blowing agent is soluble in the polyol composition for at least 5 days. An isocyanate-based rigid foam and process of making the same are also provided, wherein the isocyanate-based rigid foam comprises the reaction product of a stable polyester polyol composition of the invention with an organic and/or modified organic polyisocyanate.
Patent CA-2262371-C (CA)
Title: Adjustable earphone with a microphone
Inventor: YANG BILL
IPC: H04R1/10
Filed: 1999-02-22
Granted: 2002-08-06
Abstract: An adjustable earphone with a microphone has a hook, a speaker, and a microphone, in which the hook is used for comfortably mounting the earphone on a user's ear. The speaker is mounted in a speaker chamber that connects to the hook by an outrigger wherein the speaker can be firmly fixed on the user's exterior acoustic meatus. The microphone is mounted in a microphone chamber that connects to the hook by a boom, and the microphone chamber can be fixed near the user's mouth.  A speaker signal-wire used for transmitting the signal extends from the speaker chamber, passes through the hook, and then couples to the audio signal manager. A  microphone signal-wire used for transmitting the signals extends from the microphone chamber, passes by the boom, and then couples to the audio signal manager.
Patent CA-2265064-C (CA)
Inventor: OLSON SCOTT R
IPC: B65D83/00
Filed: 1999-03-08
Granted: 2007-06-12
Abstract: A liquid dispensing apparatus (10) includes a container (70) for holding a liquid product to be dispensed. A docking station (20) receives the container (70). A reservoir tank (50) is positioned in the docking station (20) for receiving the liquid to be dispensed. A docking cup is connected to the docking station for opening a bottle insert (90) which is contained in the container (70). By use of the present invention, contact with the product to be dispensed is reduced as is chemical odor. The lockout feature prevents the wrong product from being dispensed. The product, independent of the viscosity, may be completely emptied from the package.
Patent CA-2281320-C (CA)
Inventor: SUGIYAMA AKIHIKO
IPC: H04B3/23
Filed: 1999-09-03
Granted: 2002-08-06
Abstract: An echo canceling apparatus suitable for multiplexed transmission lines is provided that achieves a short convergence time and a small number of arithmetic operations. Adaptive filters 80, 81 and 82 are located in respective transmission lines. Each adaptive filter adaptively controls tap positions such that tap coefficients are located in dispersive regions which are obtained by removing fixed delays from the impulse response in an echo path. The controller 70 receives the tap position information 601, 603 and 605 from the adaptive filters 80, 81 and 82 to mutually compare the convergence degrees among the adaptive filters. Thus, the controller 70 respectively supplies coefficient update control signals 602, 604 and 606 to the adaptive filters 80, 81 and 82 so as to suppress coefficient adaptation of an adaptive filter or adaptive whose convergence is leading compared with the others.
Patent CA-2283119-C (CA)
Title: Azeotropic or pseudo-azeotropic compositions and use of these compositions
Inventor: DOURNEL PIERRE
IPC: C09F9/00
Filed: 1998-02-21
Granted: 2009-10-20
Abstract: The invention concerns 1,1,1,3,3-pentafluorobutane which forms azeotropic or pseudo-azeotropic compositions with alkanes having 5 or 6 carbon atoms. These compositions are used in particular as foaming agents in polymeric cell-closed foams.
Patent CA-2283386-C (CA)
Title: Bendable mirrors and method of manufacture
Inventor: KRISKO ANNETTE J
IPC: C23C14/34
Filed: 1997-09-04
Granted: 2007-02-06
Abstract: A heat formable mirror is formed by sputter depositing upon a sheet such as glass a reflective coating utilizing a base layer of silicon or a combination of silicon and stainless steel films, a reflective layer formed of a reflective metallic film such as niobium, titanium or aluminum, and a protective layer comprising preferably silicon nitride. The resulting mirror can be heat formed at elevated temperatures to form a curved minor having a reflective coating free of objectionable defect s.
Patent CA-2288041-C (CA)
Title: Intraocular lens tumbling process using coated beads
Inventor: VALLE MOISES A
IPC: B24B9/06
Filed: 1998-04-13
Granted: 2004-07-06
Abstract: A method of processing a soft or foldable lens includes a step of tumbling (grinding) the lens in a tumbling medium. The tumbling medium includes a mixture of glass beads coated with an abrasive material, alcohol and water. This process applies to single piece and multipiece soft lenses.
Patent CA-2291841-C (CA)
Title: Method for liquefying a flow rich in hydrocarbons
Inventor: SORENSEN OYSTEIN
IPC: F25B9/00
Filed: 1998-05-27
Granted: 2007-09-04
Abstract: The invention relates to a process for liquefying a hydrocarbon-rich stream, in particular a natural gas stream, by indirect heat exchange with the refrigerant mixture of a refrigerant mixture cycle, the refrigerant mixture being compressed in two stages or multiple stages and where the refrigerant mixture is fractionated into at least one lower-boiling refrigerant mixture fraction and into at least one higher-boiling refrigerant mixture fraction.   According to the invention, the compressed refrigerant mixture (23) is at least partially condensed (E4) downstream of the penultimate compressor stage and is fractionated (D4) into a higher-boiling liquid fraction (26) and a lower-boiling gas fraction (24). The lower--boiling gas fraction (24) is compressed to the final pressure, partially condensed (E5) and fractionated (D5) into a lower-boiling gas fraction (10) and a higher-boiling liquid fraction (27). The higher-boiling liquid fraction (27) is added to the partially condensed refrigerant mixture stream (23), and the gas fraction (10) forms the lower-boiling refrigerant mixture fraction and the liquid fraction (26) forms the higher-boiling refrigerant mixture fraction of the refrigerant mixture cycle. Alternatively to this, the compressed refrigerant mixture (20, 31, 34) can be partially condensed (E3, E4, E5) after each compressor stage and fractionated in each case into a lower--boiling gas fraction (21, 32, 10) and a higher-boiling liquid fraction (30, 33, 35). Only the gas fraction (21, 32) from the partial condensation (E3, E4) in each case is further compressed and the liquid fractions 33, 35) from the second fractionation (D4, D5) on are added to the partially condensed stream (20) from the first compressor stage upstream of its fractionation (D3).     Again, the gas fraction (10) from the final fractionation (D5) forms the lower-boiling refrigerant mixture fraction and the liquid fraction (30) from the first fractionation (D3) forms the higher-boiling refrigerant mixture fraction of the refrigerant mixture cycle.
Patent CA-2301671-C (CA)
Title: Appareil de liaison amorphe d'elements tubulaires
Inventor: PIETRAS BERND-GEORG
IPC: F17C9/02
Filed: 1998-08-19
Granted: 2007-10-30
Abstract: L'invention concerne un appareil de liaison amorphe d'éléments tubulaires (110, 111), l'appareil comprenant une enveloppe de revêtement double (2, 113, 114) pouvant être placée autour des éléments tubulaires (110, 111); ces revêtements définissent un espace fluide intérieur (11, 121) scellé contenant un gaz de protection et un élément chauffant (1, 129), et un espace fluide extérieur (9, 119) scellé entourant l'espace fluide intérieur (11, 121) pour réduire les risques d'explosion pendant le procédé de liaison amorphe.
Patent CA-2303386-C (CA)
Inventor: VAUPOTIC VLADIMIR
IPC: B65D85/72
Filed: 1998-09-18
Granted: 2007-07-17
Abstract: A lid (2) for a container (1) which lid comprises:  a cover portion (5) adapted to extend over the container (1); an implement (3) adapted for use with contents (27) of the container, and a hinge (4, 6) connecting the cover portion (5) to the implement (3), wherein the implement is adapted to be rotated about the hinge (4, 6) into a storage position in which the implement lies against the cover portion. The cover portion may also be provided with an anti-tamper device or a tamper resistant or tamper proof arrangement.
Patent CA-2304445-C (CA)
Inventor: BACHNER THOMAS E JR
IPC: F41H5/04
Filed: 1998-10-14
Granted: 2004-01-13
Abstract: A protective garment of multi-component construction for covering and protecting vital portions of a body of a wearer. The protective garment has a layer of body armor material which has at least one of ballist ic resistant and puncture resistant capabilities. Additionally, the protective garment includes a flexible sheet formed of a plurality of resilient honeycomb cellular structures which are constructed of thermoplastic polyurethane. The flexible sheet of thermoplastic polyurethane honeycomb structures is positioned to overlie the layer of body armor material and to face outwardly from the body of the wearer. The layer of body armor material is positioned between the flexible sheet of resilient honeycomb cellular structures and the body of the wearer upon which the protective garment is worn.
Patent CA-2307425-C (CA)
Inventor: FABIUS MIKE
IPC: E02D17/20
Filed: 2000-05-03
Granted: 2007-12-04
Abstract: A method of stabilising slopes of a soil embankment is provided using a stabilisation system for slopes having generally less than 45 degrees of inclination from horizontal. The system comprises a plurality of soil nails which are penetrated into the slopes to provide internal soil stability and a biotechnical facing on a surface of the slope to inhibit surface erosion and shallow failure of the slope. A geosynthetic layer comprising a mat, mesh or fibrous material is laid across the slope adjacent the surface to assist in establishing vegetation thereon. A retaining wall structure is preferably mounted on the crest of the slope to extend transversely to the slope. The retaining wall structure at the crest provides a stable base for supporting the embankment shoulder.
Patent CA-2308124-C (CA)
Inventor: AYESH SUHAIL
IPC: C07K14/65
Filed: 1998-10-04
Granted: 2008-07-08
Abstract: Cette invention concerne l'expression spécifique de séquences hétérologues, notamment de gènes codant des produits cytotoxiques, dans des cellules cancéreuses et sous le contrôle de séquences de transcription régulatrices. Les promoteurs préférés comprennent particulièrement les séquences régulatrices H19, le promoteur d'IGF-1 ainsi que les promoteurs P3 et P4 d'IGF-2. Cette invention concerne également des produits de synthèse d'expression, ainsi que des procédés permettant de les administrer. Les compositions et les procédés faisant l'objet de cette invention sont utiles dans le traitement du cancer.
Patent CA-2311215-C (CA)
Inventor: ALBERS TIM
IPC: E21B34/10
Filed: 2000-06-12
Granted: 2004-08-10
Abstract: A tubing plug is adapted for insertion into a tubing string for sealing the tubing string. The tubing plug is comprised of a housing having an outer surface, wherein the housing is adapted for insertion in the tubing string such that an annulus is defined between the tubing string and the outer surface of the housing and wherein the housing defines a fluid passage therethrough, the fluid passage having an upper end and a lower end. A sealing mechanism is associated with the housing for sealing the annulus and a two-way fluid bypass is provided for selectively permitting a flow of a fluid across the sealing mechanism.  Finally, a one-way valve is located at the lower end of the fluid passage for selectively permitting a flow of a fluid in a first direction from the upper end to the lower end of the fluid passage and for preventing a flow of a fluid in a second direction from the lower end to the upper end of the fluid passage.