baber/WOPTO huggingface dataset:
Patent CA-2150777-A1 (CA)
Title: Procede de traitement d'effluents liquides par boue activee
Inventor: PANIER MICHELE
IPC: C02F3/28
Filed: 1995-06-01
Abstract: Ce procédé est caractérisé en ce que l'on injecte un matériau inerte d'origine minérale dans la boue activée, ce matériau étant immédiatement dispersé de manière homogène dans la boue activée, afin de créer une culture mixte comportant à la fois et en un seul floc bactérien, des espèces hétérotrophes libres et autotrophes partiellement fixées sur les particules dudit matériau à l'intérieur du floc, la structure de ce dernier, qui contient de l'ordre de 40 à 65 % de matière organique, le reste étant ledit matériau inerte, étant constituée d'une ou de plusieurs particules dudit matériau entourées de boue activée, et en ce que l'extraction de la boue en excès s'effectue en continu et sans séparation du matériau injecté.
Patent CA-2150934-A1 (CA)
Title: A head mounted display system
Inventor: KUENSTER GORDON B
IPC: G02B27/00
Filed: 1993-10-15
Abstract: A head mounted display system (10) is shown that is modular such that various components of the system are removably mounted and/or adjustably mounted on a frame (12) that is supported on a user's head. The head mounted display system (10) can thus accomodate different users and components of different configurations. In particular, the display system (10) includes a mirror (28) through which a displayed image is viewed, the position of the mirror (28) being adjustable and the mirror (28) being removable from the frame (12) of the display system (10). The display system (10) further includes a nose piece (24) that is adjustably, mounted in the frame (12) so as to allow the distance between the frame member (12) supporting the display (26) and a nose bridge (220) to be varied. The nose piece (24) is further completely removably from the frame (12) of the display system (10) so as to allow the display system (10) to accomodate a user wearing conventional glasses.
Patent CA-2152063-A1 (CA)
Title: Level meter
Inventor: IIDA YUKIO
IPC: G01F23/284
Filed: 1994-10-19
Abstract: A level meter (10) includes a microwave transmitter (11), a microwave receiver (12) and a guide member (15) which is equipped with a port (23) for introducing a sample to be detected or with a guide body (219) made of a dielectric. The guide member is attached to a container (1) and connected at one end to the microwave transmitter (11) and at the other end to the microwave receiver (12) in such a manner that it extends into the container. The guide member serves to conduct a microwave (M) from the microwave transmitter (11) to the microwave receiver (12). When a sample enters the guide member (15) through the port (23) of the guide member (15), the propagation of the microwave (M) is interrupted. The microwave receiver (12) detects this interruption and indicates that the sample has reached a predetermined level. Alternatively, when the sample comes into contact with the guide body (219), the propagation quantity of the microwave (M) propagating through the guide body (219) changes. The storage level of the sample is detected by detecting this change quantity.
Patent CA-2152301-A1 (CA)
Title: Method of amplification using intermediate renaturation step
Inventor: BACKUS JOHN W
IPC: C12Q1/68
Filed: 1995-06-21
Abstract: A method for amplification and detection of a low copy target nucleic acid includes coamplification of a high copy target nucleic acid. After a number of conventional amplification cycles which include a denaturation step, several cycles are carried out during which the denatured products are renatured for a brief period of time. This intermediate step in later cycles of the amplification process reduces the effective concentration of the high copy target nucleic acid available for amplification in later cycles, thereby making more DNA polymerase available for amplification of the low copy target nucleic acid.
Patent CA-2154303-A1 (CA)
Inventor: DESANTIS CHARLES MICHAEL
IPC: H04B7/06
Filed: 1995-07-20
Abstract: Increased coverage and macro diversity from a single base station in a wireless communication system by having a base station coupled to N antennas is described. Increased coverage and macro diversity are achieved by transmitting from the base station N control messages each via one of the antennas, and transmitting a data message addressed to a mobile unit via a particular one of the antennas previously assigned to the mobile unit for an active call. The mobile unit receives the control messages and the data message and analyzes the control messages to identify from the antennas a best antenna. * The mobile unit then transmits to the base station a new antenna request identifying the best antenna in an uplink control slot of a frame. The uplink control field is associated with the particular one of the antennas. The base station uses the best antenna to transmit subsequent data messages addressed to the mobile unit. A random access technique, to allow mobile units that are going from an inactive status to an active status, is provided byconnecting all base station antennas together during non-call-affiliated slots in the uplink portion of the frame.
Patent CA-2155637-A1 (CA)
Title: Ladder etc. support
Inventor: GARNETT WILLIAM
IPC: E06C7/46
Filed: 1994-02-09
Abstract: A support comprises a flexible bag (10) filled with sand and having a plate (15) closing its top. An aperture (13) is formed in the plate (15) for receiving a foot of a ladder, the aperture being closed by a flexible diaphragm (14). In use, a pair of the supports are used to provide a firm base for the feet of a ladder.
Patent CA-2163624-A1 (CA)
Title: Sparkproof structure
Inventor: AVENET JEAN-PIERRE
IPC: F16B35/04
Filed: 1995-04-13
Abstract: Sparkproof structure, in particular, for aircraft, including two elements (1, 2) of composite material, at least partially superposed and joined by a cooperating screw (10) and nut (11). According to the invention, said nut (11) includes a recess (13) forming a storage chamber (15) capable of storing gases produced at the interface between said screw (10) and said elements (1,2). Said screw (10) comprises a channel (14) for discharging the gases stored in said storage chamber (15).
Patent CA-2164975-A1 (CA)
Inventor: HURWITT STEVEN D
IPC: C23C14/04
Filed: 1994-06-13
Abstract: Cette plaque à ouvertures pratiquement non colimatrice (30) contient une pluralité d'ouvertures (32) interceptant un certain pourcentage des particules de pulvérisation cathodique (22) tout en permettant le dépôt des autres particules sur le substrat (16). La vitesse de dépôt atteinte par ladite plaque à ouvertures (30) est inférieure à une vitesse de pulvérisation de sorte que la cible (12) puisse être pulvérisée à une vitesse suffisamment supérieure pour réduire la formation d'un film de réactant sur la cible de pulvérisation cathodique alors que la vitesse de dépôt est suffisamment faible pour permettre une réaction adéquate entre un gaz réactif et les particules de pulvérisation cathodique (22) et former le film de réactant (27) voulu sur le substrat (16). Les ouvertures (32) présentent différents rapports dimensionnels, ou différentes densités dans diverses zones (54, 58) de la plaque (30), ce qui permet d'obtenir différentes vitesses de dépôt dans différentes zones du substrat (16). Les rapports dimensionnels des ouvertures (32) peuvent être modifiés sélectivement de manière à obtenir une épaisseur de film plus homogène ou un film (27) de différentes épaisseurs sélectionnées.
Patent CA-2165248-A1 (CA)
Title: Corrosion-resistant coating composition having high solids content
Inventor: KUO MING C
IPC: C08L63/00
Filed: 1995-12-14
Abstract: A coating composition for preventing corrosion of a substrate including corrodable material, the coating composition comprising: a cycloaliphatic epoxy compound; a polyester compound; and a catalyst.
Patent CA-2165592-A1 (CA)
Title: Method for deflecting the arc of an electrodeless hid lamp
Inventor: LAPATOVICH WALTER P
IPC: H05B41/38
Filed: 1995-12-19
Abstract: The present invention provides a method for using electrodeless high-intensity discharge (HID) lamps for automotive headlamp and similar applications requiring high/low beam operation (first and second beam orientation) of signaling. The HID lamp is excited with a high-frequency radio frequency (rf) signal.      Modulation of the radio frequency signal is used to cause the arc of the HID lamp to selectively operate at an acoustic resonance point. At such a point, the arc undergoes a perturbation and is physically displaced from its quiescent position. When the lamp is placed at a focal or light-gathering point of an optical system having forward gain, displacement of the arc away from the focal point causes discernible changes in the far-field output of the optical system.
Patent CA-2166041-A1 (CA)
Title: Nonlinear optical element for extremely high bit rates
Inventor: CAMPI DOMENICO
IPC: G02F1/35
Filed: 1995-12-22
Abstract: The nonlinear optical element for extremely high bit rates comprises a plate made of semiconductor material, in which is there is realized a sequence of variously doped layers, which can be passed through, in operation, by one or more light radiations. The element comprises a sequence of structures which exhibit excitonic nonlinearities, and which are placed geometrically close to layers of larger sizes, which act as dilution/recombination tanks for the carriers eliminated by the nonlinear structures. The element allows realization of optical devices, such as memories, directional couplers, switches, etc., in which fast excitonic nonlinearity is very evident and in which carriers are eliminated in time intervals of 1 to 10 ps, so that the devices are able to function at extremely high bit rates.
Patent CA-2166334-A1 (CA)
Title: Combination diffused and directed infrared transceiver
Inventor: KERKLAAN ALBERT J
IPC: H04B10/40
Filed: 1995-12-29
Abstract: An infrared transceiver for use with a computer in a wireless Local Area Network.   The transceiver comprises a light emitting diode array and photodiodes.  The transceiver is operable in a diffused beam arrangement and a directed beam arrangement.  The transceiver is converted to directed beam operation by attaching a user installable columnator. The columnator redirects the beams into parallel beams, and the direction of the parallel beams is controlled through an adjustable tilt stand.   The columnator is detachable for converting back to diffused beam operation.
Patent CA-2167650-A1 (CA)
Inventor: BONE ERIC
IPC: A61Q5/10
Filed: 1996-01-19
Abstract: L'invention a pour objet une composition pour la teinture d'oxydation des fibres kératiniques, en particulier des fibres kératiniques humaines telles que les cheveux, comprenant de la paraphénylènediamine et/ou de la 2-méthyl paraphénylenediamine, en association avec au moins un dérivé de metaphénylènediamine convenablement sélectionné et au moins un dérivé de paraphénylènediamine tertiaire convenablement sélectionné, ainsi que le procédé de teinture mettant en oeuvre cette composition.
Patent CA-2169434-A1 (CA)
Title: Process for production of saline-solution soluble xanthan gum
Inventor: MUROFUSHI KANJI
IPC: A23L29/20
Filed: 1996-02-13
Abstract: A process for saline-solution soluble xanthan gum which comprises the steps of precipitating xanthan gum by mixing, with stirring, an aqueous solution of xanthan gum with an organic solvent which is a non-solvent to xanthan gum but is hydrophilic, removing liquid from the precipitated xanthan gum to a liquid content of at most 50%, disintegrating the cake of xanthan gum after the liquid removal to an average grain size of from 0.3 to 2 cm in diameter, and drying the disintegrated xanthan gum by fluidizing the same at a temperature not exceeding 80°C.
Patent CA-2171679-A1 (CA)
Inventor: TRANIER JEAN-PIERRE
IPC: F25J3/02
Filed: 1996-03-13
Abstract: Dans un procédé de vaporisation de liquide par échange de chaleur avec un gaz qui se condense, on réduit la pression du liquide à vaporiser et on l'enrichit en un constituant peu volatil après la vaporisation. Selon une variante, on peut enrichir le gaz à condenser en le constituant peu volatil. La divulgation décrit aussi un appareil de vaporisation destiné à la mise en oeuvre de ce procédé. L'invention est particulièrement utile pour des systèmes de distillation cryogénique.
Patent CA-2173903-A1 (CA)
Title: Public-key method for encrypting data
Inventor: SCHWENK JOERG
IPC: H04L9/30
Filed: 1996-04-11
Abstract: A public-key method for encrypting data.  The method according to the present invention proceeds from the known public-key method, and is intended to provide a higher level of security.  The method according to the present invention achieves this in that the public key is a number n that is the product of two large prime numbers P and q, and the secret key consists of these two prime numbers; and in that the data set m is encrypted in that it is broken down into blocks m1, ..., mk, which are interpreted as numbers smaller than n, and the encrypted data set consists of the coefficients ak-1, ...,a0 of the polynomial P(x)=xk+ak-1xk-1+...+a1x+a0:=(x-m1)...(x-mk) mod n and decrypting is effected in that, first, the zero positions of the polynomials P(x) mod p in GF(p) and P(x) mod q in GF(q) are determined with the help of the secret key and these are then combined with the help of the Chinese residual set, to form solutions of the equation P(x) = 0 mod n, the blocks m1, ...,mk of the data set m being contained in the quantity of the solutions to P(x) =0 mod n that have been so calculated.          Use of the present invention is possible in all areas in which the known public-key method is used.
Patent CA-2173974-A1 (CA)
Title: Methods for using (2-imidazolin-2-ylamino) quinoxaline derivatives
Inventor: BURKE JAMES A
IPC: A61P29/00
Filed: 1994-09-19
Abstract: A method of treating a mammal comprises administering to a mammal an effective amount to provide a desired therapeutic effect in the mammal of a compound selected from the group consisting of those having formula (I), and pharmaceutically acceptable acid addition salts thereof and mixtures thereof, wherein R1 and R2 each is selected from the group consisting of alkyl radicals containing 1 to 4 carbon atoms and alkoxy radicals containing 1 to 4 carbon atoms, the 2-imidazolin-2-ylamino group may be in any of the 5-, 6-, 7- or 8-positions of the quinoxaline nucleus, and R3, R4 and R5 each is located in one of the remaining 5-, 6-, 7- or 8- positions of the quinoxaline nucleus and is independently selected from the group consisting of Cl, Br, H and alkyl radicals containing 1 to 3 carbon atoms. Such compounds, when administered to a mammal, provide desired therapeutic effects, such as reduction in peripheral pain, anesthetization of the central nervous system, constriction of one or more blood vessels, reduction in or prevention of at least one effect of ischemia, decongestion of one or more nasal passages, reduction of at least one effect of an inflammatory disorder, increase in renal fluid flow, and alteration in the rate of fluid transport in the gastrointestinal tract.
Patent CA-2174078-A1 (CA)
Title: Low elevation wall construction
Inventor: HOTEK DAN J
IPC: E04C1/39
Filed: 1994-03-21
Abstract: A retaining wall construction comprises modular facing blocks (32) connected by fasteners (36) to anchoring blocks (34) positioned behind the facing blocks (32). The facing blocks (32) are arranged in courses which overlap one another. The facing blocks (32), as well as the anchor blocks (34), have hollow, vertical throughbores (70). This enables interconnec-tion of the back wall (68) of the facing block (32) with the anchor block (34) by means of various types of fasteners (36). The retaining wall construction is especially useful in the con-struction of low height, gravity type walls.
Patent CA-2174781-A1 (CA)
Title: Containers as interlocking blocks
Inventor: PANZO GAUDIOSO JR
IPC: B65D21/028
Filed: 1996-04-23
Abstract: A container comprises a tongue on one side and a groove on the other side.  The tongue of one container fits into the groove of another container. The combination of the tongue and groove of the containers make it possible so that when two or more of the containers are positioned adjacent  to  each other,  the  sides interlock.  The container with the tongue and groove can be used as interlocking blocks in combination with other containers also with tongue and groove.
Patent CA-2175147-A1 (CA)
Title: Method and Apparatus for Producing Oriented Plastic Strap, and Strap Produced Thereby
Inventor: VAN ERDEN DONALD
IPC: B29C55/18
Filed: 1996-04-26
Abstract: An apparatus for simultaneously milling and stretching a sheet workpiece (122) includes a pair of opposed rollers (142, 144) defining a nip (146) therebetween and through which said sheet workpiece (122) is passed to be simultaneously milled and stretched in a single pass. The opposed rollers are driven in opposite directions and at sufficiently different lineal surface velocities to simultaneously mill and stretch the workpeice within the nip. Means (188, 194) for heating opposite side portions of the sheet workpiece (122) upstream of the nip (146) and at axial positions across its width are located predetermined distances from opposite side edge portions of the sheet workpiece. This increases the degree of flatness of the workpiece across its width after it has been simultaneously milled and stretched by eliminating any concave portions and bump transitional points defined between said concave portions and a main central portion of it. These tend to form at and within the vicinity of said axial positions located said predetermined distances from said opposite side edge portions of the sheet workpiece (122). <IMAGE>
Patent CA-2176680-A1 (CA)
Inventor: SINSKY MARK SAMUEL
IPC: C07F7/18
Filed: 1996-05-15
Abstract: The present invention relates to a process for the production of organosilicon compounds of the formula Z-Alk-Sn-Alk-Z           (I) in which Z is selected from the group consisting of      ,            and         where R1 is an alkyl group of 1 to 4 carbon atoms, cyclohexyl or phenyl;     R2 is alkoxy of 1 to 8 carbon atoms, or cycloalkoxy of 5 to 8 carbon atoms;     Alk is a divalent hydrocarbon of 1 to 18 carbon atoms and n is an integer of 2 to 8; comprising reacting (A) a compound of the formula:                    Z-Alk-X                  (II) when X is Cl or Br; with (B) an ammonium hydrosulfide or alkali metal hydrosulfide and (C) sulfur;     wherein the reaction is conducted in the presence of a phase transfer catalyst and an aqueous phase.
Patent CA-2176721-A1 (CA)
Title: Treatment of uterine contractility disorders with a nitric oxide synthase substrate and/or donor, or a nitric oxide inhibitor
Inventor: GARFIELD ROBERT E
IPC: A61K38/095
Filed: 1994-11-17
Abstract: Dysmenorrhea, disfunctional uterine bleeding, preterm labor and postpartum labor in female mammals are treated by inhibiting uterine contractility by administering thereto a nitric oxide synthase substrate, a nitric oxide donor or both, optionally in combination with one or more of a prostaglandin inhibitor, a prostacyclin-mimetic, a progestin, an oxytocin antagonist or a .beta.-agonist in an amount effective to ameliorate the symptoms thereof; and inadequate menses treated and induction of abortion or stimulation of labor in a pregnant female is achieved by uterine contractility stimulation by administering thereto a nitric oxide inhibitor, either alone or in a combination of progesterone antagonist, an oxytocin or oxytocin analogue antagonist or prostaglandin.
Patent CA-2178356-A1 (CA)
Title: A high voltage electric power line current limiter
Inventor: KIDA JUNZO
IPC: H02H9/02
Filed: 1996-06-06
Abstract: A current limiter is used for stable control of an electric power system, especially a high voltage system.      The current limiter maintaining the voltage below the withstanding level, and it is easy to introduce into the system. The limiting device is inserted between a low potential terminal of a winding of star-connection of a three-phase transformer that has at least one star-connected winding and ground.
Patent CA-2180410-A1 (CA)
Title: Packaging adhesive mixtures for controlled gas barrier properties
Inventor: LAMBERT ROBERT MILTON
IPC: C08L27/04
Filed: 1996-07-03
Abstract: A higher-barrier acrylic/chlorinated vinyl or acrylic/chlorinated vinyl/vinyl latex adhesive component and a lower-barrier acrylic of arcylic/vinyl latex adhesive component are mixed in relative proportions and used to adhere films of low-barrier material, such as films of polyolefins, thereby providing an adhesive layer of controlled gas barrier properties.
Patent CA-2181976-A1 (CA)
Title: Rotary media drum for reclaiming and reclassifying sand
Inventor: DIDION CHARLES J
IPC: B22C5/04
Filed: 1996-07-24
Abstract: The present invention relates to a rotary lump crusher/reclaiming drum for reclaiming lump materials such as aggregates, chemically-bonded sand lumps, dross, ferrous and non-ferrous scrap and slag. The rotary drum has an outer cylinder concentric with an inner cylinder both of which rotate simultaneously, the latter containing treatment compartments to reduce the lumps to smaller pieces which are in turn reduced to reclassifiable particulate matter in preparation for resuage.
Patent CA-2184045-A1 (CA)
Inventor: TAKEI YOSHIYUKI
IPC: B60N2/48
Filed: 1996-08-23
Abstract: A headrest of the type rotatable forwards and backwards relative to a headrest stay,   which  comprises a trim cover assembly  of  a   box-like configuration,  a  frame disposed  in the trim cover assembly,   the frame being rotatably connected to the headrest stay,  with the headrest stay passing through the trim cover  assembly,  and a foam cushion member which is formed by  a  foaming process  together with  the  frame within the  trim cover  assembly.  The trim cover assembly includes a pair of  folded extensions folded generally at a right angle therefrom and  extending  inwardly thereof,   which are defined at  a point where  the  headrest  stay passes through the trim cover assembly.    Such pair of folded extensions have, defined therein,  openings  designed  not only to prevent leakage of a liquid foaming base material from the trim cover assembly during the foaming process, but also allow the fore-and-aft rotation of  headrest  relative  to  the  headrest  stay.     The  folded extensions are effective in receiving a full pressure at both sides thereof from an outward expanding mass of foam cushion member during the foaming process, to provide a positive closing of the folded extensions and openings.
Patent CA-2187254-A1 (CA)
Inventor: TERRASI GIUSEPPE
IPC: A23G3/56
Filed: 1996-10-07
Abstract: A food product package comprises two half shells having respective mouths in face-to-face relation. One of the half shells defines an edible part of the package. The other half shell defines a receptacle for play elements.
Patent CA-2189341-A1 (CA)
Title: Sealed rechargeable cells containing mercury-free zinc anodes, and a method of manufacture
Inventor: DANIEL-IVAD JOSEF
IPC: H01M4/50
Filed: 1994-10-17
Abstract: The zinc active powder for a mercury-free rechargeable electrochemical cell is coated with a surfactant, and separately with an aqueous solution of indium sulphate. Without any subsequent filtering, washing or drying, the powder is assembled into an electrochemical cell. The cell can include a hydrogen recombination catalyst in contact with the electrochemically active material of the cathode.