baber/WOPTO huggingface dataset:
Patent CA-2042718-C (CA)
Title: System for removing substances from a solution
Inventor: WOOG MANFRED
IPC: B01D39/20
Filed: 1991-05-16
Granted: 1996-07-30
Abstract: A filtering assembly is provided for removal of certain substances from a solution.  More particularly, apparatus are provided for removal of hazardous or environmentally unacceptable chemicals from a first solution before it is discharged.  The device includes a cylindrical housing having a spaced apart inlet and outlet.  Adjacent the inlet, a metal precipitate chamber is provided to collect precipitates which includes rolled fiberglass for capturing precipitates.  A filter subassembly is provided on the downstream side of the inlet.  The solution is then directed through an adsorption chamber containing activated carbon.  In this chamber, certain chemicals are absorbed onto the carbon.      A second embodiment of the invention provides multiple inlets for chemicals being introduced into the chamber as well as a water inlet.  The chemical inlets are provided with distribution manifolds to evenly disburse the incoming solution within the chamber.  In this embodiment, the absorption chamber is located further up stream to allow back flow of the solution through the chamber after the precipitates have been removed.  The device has particular application to the disposal of spent photochemicals such as developer solutions.
Patent CA-2043236-C (CA)
Title: Split mechanical face seal
Inventor: RADOSAV JON J
IPC: F16J15/34
Filed: 1991-05-24
Granted: 2002-02-26
Abstract: A totally split mechanical face seal being installable and replaceable without necessitating breakdown of the shaft and/or housing. The inventive split seal is well suited for replacement of packing or stuffing in heavy duty or inaccessible locations. The inventive seals include a sealing element that seals the primary ring against the shaft and rigidly positions the primary ring in the axial, circumferential and radial directions, and also includes a sealing element which seals the mating ring against the housing and non-rigidly positions the mating ring in the axial direction while simultaneously providing an axial biasing force on the mating ring to provide mating contact of the two rings.
Patent CA-2047524-C (CA)
Title: Active adaptive noise canceller without training mode
Inventor: FEINTUCH PAUL L
IPC: G10K11/178
Filed: 1991-07-22
Granted: 1994-11-01
Abstract: An active adaptive noise canceller (20) that inserts delays (21) in the weight up-date logic (22) of an adaptive filter (13) employed by the canceller (20) to make the fil-ter (13) stable. It has been found that there is a great deal of flexibility regarding the selection of the delay values. This insensitivity permits designing the delays in ad-vance, and not having to adjust them to different situations as they change, thus no longer requiring a training mode. The canceller (20) dramatically reduces the amount of hardware needed to perform active adaptive noise cancelling, and eliminates the need for the training mode, which in some applications, including automobiles, for example, can be as objectionable as the noise sources that are to be suppressed.
Patent CA-2050227-C (CA)
Title: Roadway impact attenuator
Inventor: LATURNER JOHN F
IPC: E01F15/04
Filed: 1991-08-29
Granted: 1994-01-11
Abstract: ABSTRACT OF THE DISCLOSURE            A collapsible roadway impact attenuator includes an array of spaced parallel support elements arranged to move axially when the attenuator is struck by impacting vehicle. Elastomeric energy absorbing sheets are rigidly secured between adjacent support elements so as to extend axially and horizontally.  When the attenuator is struck axially by a vehicle, the support elements move towards one another and the energy absorbing sheets form at least three inflections, thereby enhancing energy absorbing efficiency of the attenuator.  Tethers can be mounted between overlying elastomeric sheets to increase the number of inflections and the energy efficiency of the attenuator.
Patent CA-2054063-C (CA)
Title: Horizontal-type biaxial kneader
Inventor: NISHIMI HARUYUKI
IPC: B29B7/18
Filed: 1991-10-23
Granted: 1999-12-21
Abstract: A horizontal-type biaxial kneader for rubber kneading and such operation. It comprises two mixing chambers provided in juxtaposed relation, which mixing chambers are connected through an interposed region below a ram and above a bridge, and rotary shafts each equipped with a rotor blade including at least two blade wings, which rotary shafts are provided in parallel to each other within the two mixing chambers, so that the content of the mixing chambers is interchanged between the mixing chambers by rotating the rotor blades in directions opposite to each other. The rotor blades have a cross-sectional configuration characterized in that a scrape angle on the rear side of the tip of each blade wing is made larger than a bite angle on the front side of the same. Thus, separation of the content from the chamber wall on the rear side of each blade.wing can be favorably performed, and the interchange of the content between the rotor blades can be effectively conducted through the interposed region below the ram and the above the bridge.
Patent CA-2056206-C (CA)
Inventor: ONOFUSA NORIO
IPC: B60R21/20
Filed: 1991-11-26
Granted: 1996-02-06
Abstract: The present invention aims to provide a cover for accommodating an air bag, having a high opening reliability, adaptable to a wide range of temperatures, having a good durability and a suitable touch, and providing a high productivity and a lower cost, and reducing the weight of the air bag apparatus as a whole. To attain the above object, the cover of the present invention is injection molded from a thermoplastic elastomer comprised of the following components (a), (b), (c) and (d), and having a hardness of between 60 and 85 measured according to JIS K 6301 TypeA.  (a) a hydrogenated styrene and conjugated diene block copolymer of between 30 parts by weight and 55 parts by weight and obtained by hydrogenating a block copolymer composed of at least two polymer blocks including styrene units as a main part thereof and at least one polymer block including conjugated diene units as a main part thereof, a content of the styrene in the copolymer being between 20% by weight of the copolymer being 105 or more; (b) a plasticizer to be used for a rubber, at between 25 parts by weight and 50 parts by weight; (c) an olefin group resin, at between 15 parts by weight and 30 parts by weight; (d) an additive of 5 parts by weight or less; wherein (a) + (b) + (c) = 100 parts by weight.
Patent CA-2058778-C (CA)
Title: Photoelectric converting device and image processing apparatus utilizing the same
Inventor: KOZUKA HIRAKU
IPC: H01L27/146
Filed: 1992-01-06
Granted: 1996-07-16
Abstract: A photoelectric converting device has non-monocrystalline semiconductor layers of PIN structure laminated on mutually isolated plural pixel electrodes.  P- or N-doped layer on the pixel electrode contains at least a microcrystalline structure.  N- or P-doped layer on the area other than the pixel electrode is amorphous.
Patent CA-2059607-C (CA)
Title: 2-cyano-1,3-dione herbicides
Inventor: CAIN PAUL ALFRED
IPC: C07C315/04
Filed: 1992-01-17
Granted: 2003-12-30
Abstract: Compounds of formula: (see figure I) wherein:     R represents an optionally substituted alkyl or an optionally substituted cycloalkyl group;~     R1 represents halogen, hydrogen, nitro, -O(CH2)m OR5, cyano, -SR5, R5 or alkyl substituted by OR5;     R2 and R3 represent a halogen, hydrogen, R5, alkyl substituted by -OR5, nitro, cyano, -OR5 or -CO2R5;     R4 and R5 represent an optionally substituted alkyl group; n represents zero, 1 or 2 and m represents an integer from 1 to 3; and agriculturally acceptable salts of enolic tautomeric forms thereof are useful as herbicides.
Patent CA-2062523-C (CA)
Title: Reactive sound attenuator, in particular for air ducts in paper mills
Inventor: LEMETYINEN MARKKU
IPC: G10K11/172
Filed: 1992-03-09
Granted: 1997-05-06
Abstract: The invention concerns a reactive sound attenuator for air-conditioning ducts, in particular for air ducts in paper mills.  The sound attenuator includes at least two chambers separated from another by means of a partition wall.  The partition wall is provided with an opening or with a tube placed in the direction of flow of the air flowing through the sound attenuator, the air flowing through said opening or tube out of one chamber into the other.  The main plane of the partition wall is at an acute angle in relation to the direction of air flow through the sound attenuator.  Preferably, the partition wall is at an angle .alpha. from about 40° to about 70° in relation to the direction of air flow through the sound attention.
Patent CA-2063070-C (CA)
Title: White level detection circuit for an optical image reader
Inventor: TAKENAKA SHINYA
IPC: G06V30/162
Filed: 1992-03-13
Granted: 1996-07-30
Abstract: In the white level detection circuit for an optical image reader, for a low value portion in an image, the white level signal corresponding to an image signal of a high value background portion which precedes to the low value portion is held steady.  Accordingly, even if the low value image portion has a long duration, the white level signal may be kept at a proper value for the image signal corresponding to the low value image signal.  For the high value background portion, the white level signal that immediately follows a variation of the image signal can be obtained. Therefore, a proper white level signal can be generated for the background portion.  Various processing applied to the image signal on the basis of the white level signal may be performed in a satisfactory manner.  As a consequence, the read performance of the optical image reader may be remarkably improved.
Patent CA-2064143-C (CA)
Title: Irradiation device having a capacitively coupled, non-metallic treatment chamber
Inventor: KOGELSCHATZ ULRICH
IPC: H01J65/04
Filed: 1992-03-26
Granted: 1999-03-02
Abstract: The irradiation device for gaseous or liquid substances has at least one high-power radiator with a discharge  chamber  (4)  filled with  filling gas.  The filling gas contained therein emits radiation under the influence of quiet electrical discharges. The discharge chamber (4) immediately adjoins a treatment chamber (5) whose   walls   consist   throughout   of   non-metallic material. An electrode pair  (2,  7)  and an ac source (12) connected to the two electrodes serve to feed the discharge, the coupling of the discharge chamber (4) to the  electrodes  being  performed  essentially  capacitively. It is even possible, in particular, to treat by means  of  an  irradiation  device  of  such  a design corrosive media or media for which extreme degrees of purity are the aim.
Patent CA-2073609-C (CA)
Title: Method and apparatus for preserving biological products
Inventor: CORNER ANTONIO
IPC: A23C3/07
Filed: 1992-07-10
Granted: 2003-09-30
Abstract: The method includes the steps of: preheating a selected volume of product to a temperature proximate to the maximum temperature of the treatment; irradiating the product with an alternating electromagnetic field in order to heat the product to approximately 50°C: maintaining the product at a substantially constant temperature for a set time; cooling the product to a temperature close to the packaging temperature. An apparatus for performing the above method includes a pair of facing emitting surfaces connected to the terminals of an oscillator operating below 1 GHz and set to heat the product to a maximum temperature of approximately 50°C. The apparatus also includes a thermally insulated region to maintain the product at the maximum temperature of the treatment for a selected time adapted to ensure the complete destruction of the bacterial and sporal loads.
Patent CA-2076081-C (CA)
Title: Non-linear luminance signal processor responsive to average picture level (apl) of displayed image
Inventor: BELL ISAAC MICHAEL
IPC: H04N5/57
Filed: 1992-08-13
Granted: 1998-12-08
Abstract: A signal processor responsive to a video input signal provides a first video output signal linearly related to the input signal and a second video output signal non-linearly related to the video input signal. A first combining circuit combines the first and second video output signals in predetermined proportions to provide a third video output signal having both linear and non-linear components. A second combining means combines the second and third video output signals in proportions determined by an average picture level (APL) representative control signal to provide a processed video output signal having enhanced contrast for all values of the average picture level of displayed images.
Patent CA-2078954-C (CA)
Title: Aspiration unit for conditioning air during rail car unloading of perishable food products
Inventor: NELSON JOHN L
IPC: B61D27/00
Filed: 1992-09-23
Granted: 1997-07-22
Abstract: A rail car unloading aspiration unit includes a rail car nozzle for providing air conduits for feeding conditioned air to the rail car and for withdrawing air therefrom, ambient air being drawn between a weather shield, hood or cover and a fan chamber mounted on a heating chamber which forces ambient air to pass through a filter and be heated within the range of approximately 77°F - 95°F.  The heated air is passed in proximity to ultra violet lamps after which the air is directed into the rail car nozzle and expelled into the interior of the rail car head surface above the product being unloaded.  During the time that power is applied to the aspiration unit, the fan forces air to be drawn into the unit and conditioned, and the ultra violet lamps remain on.  However, the heaters are selectively activated or deactivated as a function of the temperature of the incoming air in order to maintain the temperature of the air within the desired ranged prior to being exposed to the ultra violet lamps.
Patent CA-2079507-C (CA)
Inventor: HOOYKAAS CAREL WILLEM JAN
IPC: A62D3/33
Filed: 1992-09-30
Granted: 2005-06-14
Abstract: A toxic waste fixant for detoxification of a contaminated soil, sediment, and or sludge material includes a mixture of : ferric and/or ferrous sulfate, manganese sulfate, and/or aluminium sulfate and/or Portland cement, and/or gypsum (calcium sulfate) , and/or blast furnace slag, and/or lime (calcium oxide) . Fixants made from mixtures of the above compounds are designed to prevent leaching in excess of regulatory standards for specified inorganic and organic toxic compounds and elements. These fixants will also reduce the concentration of most organic toxic compounds through various chemical reactions and bonding as determined by solvent extractions and analysis by GC/MS. The ferric and/or ferrous sulfate may be partially or completely replaced by cobalt sulfate, whereas instead of the respective sulfates the corresponding chlorides may be used as well.
Patent CA-2080688-C (CA)
Inventor: DONKER CORNELIS B
IPC: C11D3/20
Filed: 1991-04-22
Granted: 1998-11-03
Abstract: Composition liquide, aqueuse, détergente, renfermant un sulfate d'alkyle primaire, présent dans une phase dispersée non solide.
Patent CA-2081717-C (CA)
Title: Method for the transmission of message associated user-to-user information
Inventor: CHO KON H
IPC: H04M3/42
Filed: 1992-10-29
Granted: 1999-01-12
Abstract: A method is disclosed for transmitting information from a non-ISDN compatible communication device to an ISDN compatible receiving device via the DChannel of an Integrated Systems Digital Network. To facilitate this transmission, the information is reformatted embedded in an ISDN signaling protocol message, and transmitted to an ISDN compatible recipient as Message Associated User-To-User Information.
Patent CA-2082128-C (CA)
Title: Process for agglomerating particulate material and products made from such processes
Inventor: STEEGHS HENRICUS R G
IPC: C22B1/244
Filed: 1992-11-04
Granted: 2002-12-31
Abstract: A process for particulate agglomeration (i.e., pelletizing) arid the product produced (i.e., pellets) by such processes are disclosed. The process generally comprises a process of agglomerating particulate material, said process comprising commingling said particulate material with a moistening effective amount of water, a binding effective amount of polymer and a binding effective amount of weak acid to produce a mixture and forming said mixture into agglomerates.
Patent CA-2083390-C (CA)
Title: Polyaspartic acid as a calcium sulfate and a barium sulfate inhibitor
Inventor: KOSKAN LARRY P
IPC: C02F5/10
Filed: 1992-03-19
Granted: 2004-07-27
Abstract: Polyaspartic acid as a calcium sulfate and barium sulfate inhibitor. Generally all forms of polyaspartic acid can be used:     .beta.-polyaspartic acids are preferred.
Patent CA-2085985-C (CA)
Title: Detersive system containing water soluble film article
Inventor: BESSE MICHAEL E
IPC: C11D17/04
Filed: 1991-06-28
Granted: 1997-11-18
Abstract: The stability of polyvinyl films used to contain detersive systems may be enhanced by the use of a barrier coating composition to separate the film degrading components, i.e., acids, bases, and halogens, from these films. The barrier coatings mayeither encapsulate the individual film degrading components, or they may coat the entire detersive system.
Patent CA-2087592-C (CA)
Title: Ferroelectric liquid crystal compositions containing chiral haloalkoxy tail units
Inventor: WAND MICHAEL D
IPC: C09K19/12
Filed: 1991-07-22
Granted: 2002-04-16
Abstract: The subject application discloses a chiral nonracemic composition of the general formula: R1-Ar-O-CH2-C*HX-C*HY-CH2-O-R2, wherein R1 is a tail group of two to sixteen carbons; Ar is an achiral FLC core of at least two rings; * denotes a chiral carbon; X and Y are halogens ; and R2 is one to ten carbon atoms. The -O-CH2-C*HX-C*HY-CH2-O- segment com-prises the chiral proximal segment of the chiral tail; the proximal segment is selected from the enantiomers 2R,3R-dihalo and 2S;3S-dihalo R2 is the distal segment of the chiral tail.
Patent CA-2089553-C (CA)
Inventor: SCHENDEL PAUL
IPC: C07K19/00
Filed: 1991-08-29
Granted: 2000-06-27
Abstract: L'invention se rapporte à de nouvelles protéines de fusion, IL3-X ou X-IL3, où X représente une lymphokine fusionnée à IL3.
Patent CA-2092325-C (CA)
Title: Copy machine managing system and facsimile machine used therein
Inventor: KOYANAGI YUUJI
IPC: G06Q50/00
Filed: 1993-03-10
Granted: 1996-11-12
Abstract: A copy machine managing system comprises at least one copy machine provided with a collecting unit for collecting and storing management information and a transferring unit for transferring the management information to an external unit, the management information being used for managing the copy machine, a facsimile machine connected with the copy machine so as to establish a local area network, the facsimile machine collecting the management information of the copy machine via the local area network, and a managing unit connected with the facsimile machine via a public service telephone line.  The managing unit receives the management information from the facsimile machine via the public service telephone line so it can manage the copy machine by using the management information. The management information is converted into a facsimile communication signal by the facsimile machine so that the management information can be transmitted via the public service telephone line.
Patent CA-2103850-C (CA)
Title: Dispositif de regulation et de distribution d'un fluide polyphasique
Inventor: GIANNESINI JEAN-FRANCOIS
IPC: E21B43/34
Filed: 1993-08-11
Granted: 2006-08-01
Abstract: - Dispositif qui permet d'alimenter en fluide polyphasique comportant au moins une phase liquide et une phase gazeuse un ensemble de pompage. Le dispositif est constitué d'un réservoir comprenant des moyens de prélèvement du fluide, au moins au nombre de deux, qui s'étendent dans le réservoir de façon à traverser l'interface liquide-gaz en fonctionnement normal, lesdits moyens de prélèvement comprennent des ouvertures de prélèvement réparties de part et d'autres de ladite interface en fonctionnement normal, les moyens de prélèvement étant reliés à l'ensemble de pompage.
Patent CA-2107592-C (CA)
Inventor: ROE DONALD CARROLL
IPC: C08L101/00
Filed: 1992-04-09
Granted: 1997-07-08
Abstract: Structures absorbantes renfermant des matières superabsorbantes ou une composition de matière particulaire. La composition de matière particulaire a des distributions granulométriques, spécifiques, relativement étroites de matières particulaires formant un hydrogel superabsorbant; celles-ci sont formées elles-mêmes par des méthodes de polymérisaiton en solution et mélange avec des poudres minérales. La taille des particules de matière superabsorbante fait en sorte qu'au moins 70 % en poids environ de ces particules passent à travers un crible de 50 mailles de 297 microns d'ouverture, conforme aux normes U.S., et qu'elles sont retenues sur un crible de 170 mailles de 88 microns, lorsque ces particules sont analysées selon l'essai de criblage décrit dans le présent brevet. De la poudre minérale, comme la silice amorphe, est mélangée avec les particules de matière superabsorbante, à raison d'environ 0,1 à 5 parties par 100 parties de particles de matière superabosorbante. Les structures absorbantes de la présente invention sont utiles dans des articles absorbants jetables, comme les couches, les dispositifs pour adultes incontinents, etc.
Patent CA-2114170-C (CA)
Title: Polyol esters of zinc mercaptoacids as heat stabilizers for pvc processing
Inventor: BEEKMAN GEORGE F
IPC: C08K5/37
Filed: 1994-01-25
Granted: 1999-05-04
Abstract: A zinc mercaptoacid ester of a polyhydric alcohol or ether, carboxylate,  or ether-carboxylate thereof having at least one functional hydroxy group are improved heat stabilizers for halogen-containing polymer compositions.  The phenomenon known as zinc burn during processing of such compositions is eliminated. Zinc bis-thioglycolates,   zinc   mercaptopropionates   and   zinc bis-mercaptosuccinates of glycols,  glycerol,  glycol ethers,  glycol carboxylates, and glycerol carboxylates exemplify the new class of heat stabilizers.
Patent CA-2117290-C (CA)
Title: Downhole pressure gauge and convertor
Inventor: MILLER MARK
IPC: E21B47/06
Filed: 1994-05-26
Granted: 2000-10-31
Abstract: The apparatus disclosed is a type of downhole pressure gauge to be used to measure and record pressure information about oil and gas wells. The apparatus measures flunctuations in pressure by means of a mechanical pressure sensitive device, such as a Bourdon tube, and records and stores this information by converting mechanical movement, associated with pressure changes as detected by the mechanical pressure sensitive device, into corresponding voltage changes across a potentiometer which are stored in an electronic memory board. The change in voltage over time corresponds to the change in well pressure over time, thereby providing important information to the well operator. Also disclosed is a method for measuring well pressure by means of combining a mechanical pressure sensitive device with an electrical system and an electronic memory board for storing the measurements. Also disclosed is a kit, whereby an existing downhole mechanical pressure gauge can be converted to a mechanical/electrical combination by the replacement of certain parts.
Patent CA-2118547-C (CA)
Title: Method and system for mediating transactions that use portable smart cards
Inventor: FRIEDES ALBERT
IPC: G06Q20/40
Filed: 1994-10-20
Granted: 1997-01-14
Abstract: The invention provides a method and system for employing a communication system to mediate a transaction involving one of a plurality of files and programs corresponding to a plurality of applications residing on a single smart card.  The invention uses a smart card gateway which provides a transparency in the communication between a caller station and a subscriber station and subscriber host associated with one of the applications. The smart card gateway facilitates transactions involving smart cards, and permits completed transactions to be recorded on the smart card as well as stored in a database associated with the smart card gateway.