baber/WOPTO huggingface dataset:
Patent CA-2073842-A1 (CA)
Title: Apparatus and process for withdrawing stripper gas from an fcc reactor vessel
Inventor: CHAN TING Y
IPC: C10G11/18
Filed: 1992-07-14
Abstract: APPARATUS AND PROCESS FOR WITHDRAWING STRIPPER         GAS FROM AN FCC REACTOR VESSEL         (D#78,523-C1-F) ABSTRACT OF THE DISCLOSURE           A riser cyclone separator has been invented for rapidly separating catalyst from cracked hydrocarbon vapors in a fluid catalytic cracking process.  The riser cyclone is provided with an annular port for drawing stripping gas into the riser cyclone to separate entrained catalyst and vent stripper gas from the regenerator vessel.  The cyclone is inherently negative pressure to the reactor vessel.
Patent CA-2073864-A1 (CA)
Inventor: CHOW WAI Y
IPC: C08J5/10
Filed: 1991-01-09
Abstract: Compositions suitable for producing mineral fibre reinforced thermoplastic composite materials by the wet-laid process comprise mineral fibres, matrix polymer and a coupling agent. The fibres are silanized with reactive silane groups capable of reacting with the coupling agent, for example a maleic anhydride grafted polyolefin, to improve adhesion between the fibres and matrix polymer in the final composite product. The composition excludes components which hinder the reaction between the silane groups and the coupling agent.
Patent CA-2076040-A1 (CA)
Title: Rackable plastic pallet
Inventor: SHUERT LYLE H
IPC: B65D19/32
Filed: 1991-02-22
Abstract: A plastic pallet (10) in which a base structure (14) is posi-tioned beneath the plastic main body structure (12) of the pallet to discourage warpage and failure of the pallet especially in racked, loaded storage situations. The plastic main body structure (12) of the pallet includes a planar platform section (16) defining an upwardly facing load receiving surface and a plurality of legs (18) extending downwardly from the platform section to define tunnels therebe-tween for receipt of the forks of a forklift truck. The base structure includes a lower plastic sheet (44), an upper plastic sheet (42), and a plurality of tubular metallic beams (40) positioned in hollow ribs (14b) defined by the lower plastic sheet. The ribs (14b) are respective-ly secured to respective rows of legs (18) of the main body structure.      Another embodiment of the base structure comprises a plurality of discrete individual beam structures (114 or 150) secured to rows of legs (118).
Patent CA-2076605-A1 (CA)
Inventor: BONA GIAN-LUCA
IPC: H01S5/32
Filed: 1992-08-21
Abstract: The invention concerns AlGalnP/GalnP visible laser diodes and LEDs withimproved maximum output power. This is achieved by embedding the active region of the diode (30), e.g. a GalnP active layer (35), between very thin pand n-doped AlGalnP barrier layers (34.1, 34.2) and thick p- and n-doped AlGaAs cladding layers (33, 36). The inventive barrier layers (34.1, 34.2) are employedto avoid tunneling and spill over of carriers from the active region (35) into the cladding (33, 36). These barrier layers (34.1, 34.2) can be very thin thus allowing bandgap engineering and providing for barriers with low defect density. In addition the low resistance of the AlGaAs cladding reduces the thermal and electrical resistances of the device.
Patent CA-2077557-A1 (CA)
Title: Collapsible transport box
Inventor: GRONNEVIK ODDBJORN
IPC: B65D1/22
Filed: 1992-02-07
Abstract: (54)Title: COLLAPSIBLE TRANSPORT B?            (57)Abstract A collapsible transport box which is formed from an essentially planar material blank (1) comprising a bottom (2) and side-walls (3,4,5,6) and including a lid (13) as ap-propriate wherein the sidewalls are hinged or otherwise attached to the bottom so as to be foldable relative to the bottom. The walls are joined at the box corners by means of a relea-sable connection which comprises a vertical slot or hole (8) in one, the first, sidewall (6) and an outward extending fastening tongue (9) in the other, second, sidewall's (5) end edge.  Said fastening tongue (9) extends through the slot (8) and is bent sideways so that its external section extends over an exter-nal region of the first sidewall (5).
Patent CA-2077732-A1 (CA)
Title: Heterocyclic derivatives
Inventor: OKU TERUO
IPC: A61K31/415
Filed: 1992-09-08
Abstract: ABSTRACT OF THE DISCLOSURE          Compounds of the formula:       wherein R1 is aryl which may have suitable substituent(s) or heterocyclic group which may have suitable substituent(s), R2 is aryl which may have suitable substituent(s) or heterocyclic group which may have suitable substituent(s), and Y  is a bivalent radical selected from    ,         ,       ,       and         (in which   means single bond or double bond), each of which may have suitable substituent(s), and pharmaceutically acceptable salts thereof. These compounds are useful for the prophylactic and therapeutic treatment of IL-1 and TNF mediated diseases such as chronic inflammatory diseases, specific autoimmune diseases, sepsis-induced organ injury in humans and animals.  The preparation of these compounds, pharmaceutical compositions containing them and prophylactic and therapeutic treatments are also disclosed.
Patent CA-2078593-A1 (CA)
IPC: A41C1/16
Filed: 1992-09-18
Abstract: A monocoque breast supporting frame (16) including a reduced mass arcuate shaped resilient wire (10) and a specifically formulated reinforcing sleeve-like, low friction member (14) totally encasing the wire; said sleeve-like member (14) having a plurality of circumferential radii, thickness, and structural integrity specifically disposed along the arcuate shaped, reduced mass, resilient wire to afford maximum strength and resilience to the frame (16) and a maximum comfort to the wearer. <IMAGE>
Patent CA-2080883-A1 (CA)
Inventor: FLEURY ETIENNE
IPC: C08G63/668
Filed: 1992-10-19
Abstract: Process for the preparation of a water-soluble and/or water-dispersible copolyester comprising terephthalate, isophthalate, sulphoaryldicarboxylate, ethylene glycol and polyoxyethylene glycol units, characterised in that it comprises the following successive stages: 
 
  - a transesterification (interchange) reaction between, on the one hand, dimethyl terephthalate and a dimethyl sulphoaryldicarboxylate and, on the other hand, ethylene glycol; 
  - a direct esterification reaction between isophthalic acid and a new quantity of ethylene glycol; 
  - a polycondensation reaction. 
 
<??>It also relates to the use of these polyesters for sizing textile yarns.
Patent CA-2080927-A1 (CA)
Title: Padded chain drive for roller conveyors
Inventor: WIGGERS DENNIS
IPC: B65G13/071
Filed: 1992-10-19
Abstract: A load supporting conveyor having live rollers (15) forming a load conveying path in which the rollers (15) are driven by a chain (30) having horizontally placed links (31, 32) and vertically positioned rollers (33) with vertical axles (34) that project upwardly toward the live rollers (15) to be engaged by a flexible pad (36) substantially aligned with the drive chain (30) and an aperture pattern formed in the pad (36) to establish a series of apertures (37) that have a tight fit with certain ones of the vertical axle projections (34) and a series of other apertures (38) that have a loose fit with a like series of vertical axle projections (34).
Patent CA-2081227-A1 (CA)
Inventor: MOUNT ELDRIDGE M III
IPC: C08J7/043
Filed: 1992-10-23
Abstract: A metallized oriented film combination having a propylene polymer substrate with a high density polyethylene skin layer on at least one side thereof and a thin metal layer deposited on the surface of the high density polyethylene.
Patent CA-2082348-A1 (CA)
Title: Thin drawer slide
Inventor: JORDAN KENT A
IPC: A47B88/493
Filed: 1992-11-06
Abstract: A thin profile drawer slide apparatus (1) for slidably supporting a heavy drawer in an article of furniture, comprising outside channels (20,40) for slidably attaching the apparatus to a drawer and an article of furniture, a plurality of bearings (70) slidably retained in the channel by parallel, opposed bearing retainers (30), and by a one-piece, generally "I"-shaped intermediate slide member (32) or retaining member unitarily formed with top and bottom parallel raceway means (36A, 36B) for guiding the bearing retainers. Use of a single intermediate slide member (32) with raceways (36A, 36B) for four separate sets of bearings enables construction of a thin, strong drawer slide for carrying heavy loads. <IMAGE>
Patent CA-2084241-A1 (CA)
Inventor: ERWIN WILLIAM R
IPC: H05B37/02
Filed: 1992-12-01
Abstract: An automatic lighting controller applies a turn-off control signal to a gate-controlled power switch for switching OFF lighting when a timer circuit determines that motion  activity  exceeding  a  threshold  level  has  not occurred within a service zone during a predetermined time interval.  A binary counter produces a grace period count signal and a reset count signal, with the grace period count signal occurring during a predetermined sub-interval, for example, one count cycle prior (N-1) to the reset count signal (N).  The grace period count cycle (N-1) interval is adjustable, for example, from about 0.6 second (for test purposes)  to about 14 seconds.   The grace period count signal enables an audio transducer that provides an audible alert that the lights are about to be switched OFF automatically.   A person in the service zone can override the impending automatic shut-off simply by initiating some motion activity during the grace period.
Patent CA-2085242-A1 (CA)
Inventor: KRUEGER MARTIN
IPC: C07D/
Filed: 1992-04-02
Abstract: Abstract 4-Isoxazolyl-imidazole derivatives of formula I                                         (I) in which R1, R2, R3 and R4 have the meaning indicated in the application, as well as their production and use in pharmaceutical agents, are described.
Patent CA-2085801-A1 (CA)
Inventor: ANTHONY JAMES M
IPC: A47H23/02
Filed: 1992-12-18
Abstract: A covering assembly in the form of a window blind includes a front sheer fabric 516, provided with a plurality of forward and rearward pleats 518,520, and a rear elongate sheer fabric 522, again provided with forward and rearward pleats 524,526. A plurality of vanes 528 interconnect the front and rear sheets and are connected to the front and rear sheets at the location of the pleats. In one embodiment one edge of each vane is connected to the rear interior face of the forwardly extending pleat of one sheet, while the other edge is connected to the front interior face of a forwardly extending pleat of the rear sheet, and in another embodiment the one edge is connected as previously mentioned, but the other edge is connected to the forward interior face of a forwardly extending pleat of the rear sheet. <IMAGE>
Patent CA-2086345-A1 (CA)
Title: Lubricating oil compositions
Inventor: HOLT GRENVILLE
IPC: C10N60/02
Filed: 1992-12-29
Abstract: This invention relates to a lubricating oil composition which has a major proportion of a biodegradable base fluid which is a blend of (a) at least one ester of isotridecyl alcohol and a mono-, di or polycarboxylic acid, and (b) at least one hydrocarbon oil which has no more than 10%w/w of aromatic hydrocarbons, the rest being aliphatic. The proportion of (a) in the blend is from 25-55%w/w. The biodegradability of the base fluid renders the composition more environmentally friendly.
Patent CA-2087043-A1 (CA)
Inventor: ODELL MICHAEL
IPC: D21F1/48
Filed: 1993-01-11
Abstract: The invention concerns a twin-wire web former for a paper machine, whose wires (10,20) form a twin-wire forming zone (V1-V2) between them, on which zone water is drained out of the web (W) through both of said wires (10,20). After the twin-wire zone the web (W) is separated from the covering wire (20) and is transferred on the carrying wire (10) to its pick-up point. In hybrid formers (Fig. 1), after the single-wire forming zone (10a), and in gap formers (Fig. 2), after the curved forming zone (a0) placed directly after the forming gap (G), there is a forming shoe (30;30A) provided with a ribbed deck (31) and fitted inside one of the wire loops (10/20). This forming shoe (30;30A) is followed by dewatering and web forming units which include forming ribs and are placed inside both of the wire loops (10,20), of which units at least one is loaded by means of a pressure-hose arrangement.
Patent CA-2087283-A1 (CA)
Title: Apparatus for removing black smoke of exhaust gas for diesel engine
Inventor: INABA MINORU
IPC: F01N3/021
Filed: 1993-01-14
Abstract: Abstract of the Disclosure:    The present invention provides a filter slowly rotated in a housing.  A number of pores are perforated at the filter.  Exhaust gas of a diesel engine is introduced into the housing, and discharged externally from the pores of the filter.  At this time, black smoke in the exhaust gas is adhered to the inner walls of the pores in a clogged state, and when the pores of the filter are rotated to be disposed at the position of the pressure air chamber, the black smoke adhered to the clogged state is forcibly separated from the pores of the filter by the pressure air fed under pressure by a compressor, and again fed together with the sucked air to the diesel engine, and burned.
Patent CA-2088501-A1 (CA)
Inventor: HILDEBRAND HAROLD A
IPC: G01V1/32
Filed: 1992-07-06
Abstract: Procédé et appareil destinés à produire rapidement des cartes d'horizons (11) à partir d'un volume tridimensionnel de traces sismiques. Au cours du traitement par lots de données numériques représentant des vaguelettes de traces, on détermine des "1" ou des "0" pour chaque trace sismique du volume. Un volume de bits (102) est produit et le "1" à la profondeur d'une trace indique qu'un horizon existe à cette profondeur et à d'autres profondeurs des "1" de traces adjacentes qui se trouvent au sein d'une profondeur déterminée. En temps réel, un chercheur sélectionne un point de départ, identifiant ainsi un "1" sur une trace particulière à une profondeur particulière. Une procédure de balayage automatique trouve tous les autres "1" à des profondeurs de traces adjacentes. Chaque "1" trouvé dans des traces adjacentes est redésigné comme point de départ et le processus est poursuivi jusqu'à ce que l'on ne trouve plus de "1". Une carte des horizons (110) est créée à partir des profondeurs de chaque "1" trouvé. Un autre procédé et un autre appareil sont également décrits, dans lesquels ledit volume de bits est remplacé par un volume de traces comprimées, chaque bit du volume de bits étant remplacé par une valeur numérique correspondant à la profondeur précise de l'attribut extrême représenté par le bit. Ces valeurs de profondeur sont stockées consécutivement pour former des traces comprimées. L'interpolation des vaguelettes en vue de trouver des attributs maxima et minima desdites vaguelettes donne la possibilité d'identifier des profondeurs supérieures ou inférieures à un bit du volume de bits, ce qui permet la production d'un volume de traces comprimées interpolées.
Patent CA-2090670-A1 (CA)
Title: Electrochemical cells for use in electrochemical processes
Inventor: HEINKE HARRI
IPC: C25B9/17
Filed: 1993-03-01
Abstract: ABSTRACT OF THE DISCLOSURE An electrochemical cell for carrying out electrochemical processes -for example the regeneration of chromic acid or the electrochemical treatment of methanesulphonic acid - possessing several plate-shaped bipolar electrodes which are held spaced apart from each other by frames -thereby forming an electrolyte chamber between each pair of adjacent electrodes - and the electrolyte chambers are sealed off in a liquid-tight manner in their lateral and lower regions, and adjacent bipolar electrodes are electrically insulated from each other; the electrodes are held firmly against the frames by means of pressurizable, tubular sealing elements, which are positionally fixed in U-shaped grooves in the frames; the cell is not sealed off at the surface of the electrolyte, but depending on the application a cover may be provided. In order to remove the electrodes, the gripping force is released by reducing the pressure inside the sealing elements.
Patent CA-2092650-A1 (CA)
Title: Apparatus and method for conveyance of flowable solid materials
Inventor: CHRISTIANSON ROY O
IPC: B67D7/00
Filed: 1993-03-12
Abstract: Abstract of the Disclosure A transfer system for flowable solids or particulates is described.  The transfer system includes an air seal assembly having an upstream side and a downstream side.  The air seal assembly is constructed such that an air pressure differential can be maintained between the opposite sides thereof, but particulate material can be transferred through the air seal assembly.  The transferring system includes an arrangement for transporting flowable solid material to the upstream side of the air seal assembly, the transfer taking place within a moving airstream at a pressure of less than ambient.  Also, the system includes an arrangement for transporting the flowable solid material from the downstream side of the air seal assembly, preferably under gravity influence and ambient pressure.
Patent CA-2093975-A1 (CA)
Title: Apparatus and method for non-regular channel assignment in wireless communication networks
Inventor: BENVENISTE MATHILDE
IPC: H04W16/24
Filed: 1993-04-14
Abstract: A channel assignment system assigns channels to various cells by the optimal partitioning of the available radio frequencies into non-overlapping sets, the optimal grouping of co-user cells, and the best assignment of the former to the latter. The objective is the maximization of traffic handling capacity which, given the multitude of cells, is expressed as the maximization of a bottleneck capacity ratio. The capacity ratio for a cell is defined as the ratio of the number of radio frequencies assigned to the cell over the number of radio frequencies needed to meet blocking probability requirements. The solution to attain an optimal non-regular channel assignment is decomposed into two mathematical programs designated a Master Program and a Subprogram. These are solved iteratively with assistance from a channel set augmentation technique impelmented between solutions of the Master and Subprogram.
Patent CA-2097109-A1 (CA)
Title: Liquid crystal display
Inventor: KOKAWA SHOZO
IPC: F21V5/02
Filed: 1993-05-27
Abstract: A light converging unit using a prism lens adapted for use in a back light device and which enables the device to be manufactured in a thinner size and at a lower cost.      A liquid crystal display comprising; a display means for displaying characters and graphics, said means including a display portion comprising at least a liquid crystal panel; an illuminating means for illuminating the display portion of the liquid crystal panel; a converging means for converging light rays from the illuminating means at the display portion of the liquid crystal panel.      A prism lens comprises a plurality of prism portions provided with a flat portion formed thereon. Said flat portion may be formed at the bottom between two neighboring prism portions. A combination of top and bottom flat portions formed on and between the prism portions are also possible.
Patent CA-2099171-A1 (CA)
Inventor: JONES MARK A
IPC: H03K19/00
Filed: 1993-06-25
Abstract: A programmable logic output driver includes a bias generator (100),  a current mirror (200)  and an output stage (300), there being a digital programming feature to maintain the output voltage slew rate at an acceptable value for either high or low values of load capacitances. The driver is programmable and can maintain a constant value of driver output resistance in the circumstances where the load voltage approaches the full swing logic voltage.   In the preferred embodiment,  the programmed output resistance is independent of variations in process, temperature and VDD supply voltage.  TTL loads are driven with  the  minimum  amount  of  required  output  current. Because of the constant resistance, the driver supplies a specified amount of current to the load even when the load is pulled down to a specified voltage.   The resistance value  is  substantially  the  highest  value  possible consistent with providing a required minimum load drive current  and  the  resistive damping of  the  output  RLC circuit  is  maximized  so  that  voltage   "kick"  or "undershoot" is held to a minimum.
Patent CA-2099660-A1 (CA)
Title: Method and apparatus for detecting digital carrier signals on telephone cables
Inventor: BUZBEE JAMES M
IPC: H04M3/24
Filed: 1991-12-23
Abstract: The apparatus has a probe (13) for collecting a small portion of a carrier signal on a pair of wires (37). The collected portion of the carrier signal is mixed with a local oscillator (17) signal so as to produce a heterodyned signal having a low frequency component and a high frequency component. The frequency of the local oscillator signal is selected to be within a few Kilohertz of the carrier signal so that the low frequency component is within an audible range. A low pass filter (19) removes the high frequency component. The low frequency component is amplified (21) and converted to sound. The audible signal is a representation of the carrier signal and allows a technician to determine the relative strength of the carrier signal and to identify the type of carrier signal on the wire pair.
Patent CA-2100175-A1 (CA)
Inventor: DOUGLAS GEORGE H
IPC: B41J29/38
Filed: 1993-07-09
Abstract: A host computer and printer and method of operation is disclosed wherein the printer is able to switch between two modes of operation. When the printer is powered up, it initializes its internal data registers and printer memory, followed by a check to see if additional firmware, in the form of a cartridge or the like, is added to the printer. If additional firmware is present, the printer turns operational command over to the additional firmware. The present invention, residing in the additional firmware, stores a complete image of the printer state, internal registers, and memory in a location that cannot be accessed by either mode of operation. The present invention compresses the data so that the complete image of the printer state, internal registers, and memory occupies approximately eight KBytes of memory. The storage location may be part of the printer memory itself, or any other suitable location. The additional firmware then returns operational control to the original firmware within the printer thus allowing the printer to operate in the first mode of operation. The host computer may cause the printer to switch to the second mode of operation by simply overwriting the internal data registers and printer memory, except for the portion of printer memory that is used to store the compressed image of the initial printer state. The printer may be switched back to the first mode of operation by expanding the compressed image to restore the printer to its initial state. From the perspective of the printer, it has just completed initialization. Thus, the printer may be easily and quickly switched modes of operation. <IMAGE>
Patent CA-2101249-A1 (CA)
Inventor: WINKLER HEINZ
IPC: A61B17/80
Filed: 1991-12-23
Abstract: An endoprosthesis for a hip joint consists of a head prosthesis (1) and an acetabulum prosthesis (2). The head component (3) in the acetabulum prosthesis (2) is secured to an attachment (5) having a truncated conical sur-face (6) bearing on the neck of the thigh-bone (7). From the attachment a rod-like sliding comonent (9) extends laterally and distally and is guided to slide in a sleeve (11) which is connected to a plate (12) secured to the femur (13). The acetabulum prosthesis (2) consists of a socket (15) secured at its cranial edge to a flange (18) from which project sliding sleeves (19) with their axes perpendicular to the acetabulum insertion plane. Screws (21) passing through the sliding sleeves (19) provide for fixing to the bone.
Patent CA-2103076-A1 (CA)
Title: Smoking Article
Inventor: PORENSKI HARRY
IPC: A24D1/22
Filed: 1993-11-12
Abstract: A smoking article includes a fuel rod coaxially aligned with and circumscribing two insulating tubes of different heat transfer coefficients wherein the inner most insulating tube is filled with an aerosol generating composition including flavor vaporizing materials therein.