baber/WOPTO huggingface dataset:
Patent CA-2032617-C (CA)
Title: Arrangement for reserving and allocating a plurality of competing demands for an ordered bus communications network
Inventor: MUEHRCKE ERIC B
IPC: G06F9/52
Filed: 1990-12-18
Granted: 1994-09-27
Abstract: Abstract The present invention relates to a method and a system for reserving and allocating a plurality of competing demands for an ordered by communications network in response to a plurality of demands from a source. The network includes a plurality of customer sites, each site including one or more endpoints. Each endpoint is connectable to a switching system. The switching system is connectable to one or more other switching systems. A unit is providedfor connecting a first endpoint through the one or more switching systems to a second endpoint. The improvement with respect to the method is comprised of the steps of receiving demands from a customer site for allocating the network for acommunications among a plurality of customer sites; stratifying the received demands in response to a grouping of endpoints to be conferenced at the customersites and allocating the network resources to connect the endpoints to be conferenced in response to the stratified demand. The method includes generatingsetup and terminate times for each endpoint to be connected in a conference; reserving the endpoints to be connected in the conference; and generating a plurality of bindings for signalling the network and the source as to success ofconnecting the endpoints to be conferenced over the ordered bus network. The improved system includes a unit for receiving demands from a customer site for allocating the network for a communication among a plurality of customer sites; a unit for stratifying the received demands in response to a grouping of endpoints to be conferenced at the customer sites and a unit for allocating the network resources to connect the endpoints to be conferenced in response to the stratified demand. The system includes a unit for generating setup and terminate time for each endpoint to be connected in a conference; a unit for reserving the endpoints to be connected in the conference and a unit for generating a plurality of bindings for signalling the network and the source as to success of connecting the endpoints to be conferenced over the ordered bus network.
Patent CA-2044021-C (CA)
Title: Cross-linked anionic and amphoteric polymeric microparticles
Inventor: RYLES RODERICK GLYN
IPC: C08J3/12
Filed: 1991-06-07
Granted: 2002-06-04
Abstract: Novel compositions comprising anionic and/or amphoteric organic polymeric microparticles are disclosed, along with a method for their production. The products are useful in flocculating a wide variety of dispersions of suspended solids and in paper-making.
Patent CA-2051445-C (CA)
Title: Apparatus and process for treating medical hazardous wastes
Inventor: GOLDNER HELMUT
IPC: H05B6/78
Filed: 1990-04-16
Granted: 1999-10-12
Abstract: The invention relates to an apparatus and a process for treating medical hazardous wastes to process them into waste similar to domestic refuse which can be removed or disposed of like normal domestic refuse or can be supplied for recycling after sorting. The infectious refuse is passed through a microwave chamber fitted with a plurality of microwave sources disposed next to each other and subjected to a disinfection therein. To achieve a safe and reliable treatment for decontaminating medical hazardous wastes in an economical and environmentally friendly manner, the apparatus comprises a two-stage construction of microwave chamber and temperature maintenance chamber. The microwave chamber has a dense microwave field distribution for heating the refuse to or above a selectable minimum temperature. Connected to the outlet of the microwave chamber is the temperature maintenance chamber which holds the refuse at at least the minimum temperature during a minimum residence time.
Patent CA-2058109-C (CA)
Title: Method for forming a sieve material having low internal stress and sieve material so obtained
Inventor: DELMEE PETRUS H M
IPC: C25D7/00
Filed: 1991-12-19
Granted: 1997-09-09
Abstract: Described is a method for forming a sieve material in which a sieve skeleton is thickened in an electrolysis bath with metal;  in the bath as used at  least  one chemical compound is present having properties of both a first and second class brightener in such concentration and added with such a rate in view of the Ah load that the internal stress in the finished sieve material is reduced in comparison to a sieve material produced in a bath   comprising  a   conventional   compound   under conventional conditions. The invention also relates to a sieve material formed with the method described.
Patent CA-2060046-C (CA)
Title: Image recording machine
Inventor: ENDO YUJI
IPC: G03G21/16
Filed: 1992-01-27
Granted: 1998-04-14
Abstract: In a recording device, such as a facsimile machine, has a lower cover and an upper cover pivotable with respect to the lower cover for opening and closing, a photosensitive drum mounted to the upper cover, and a paper guide assembly through which recording paper is guided, support rollers rotatably mounted on the paper guide assembly such that they are engageable with the ends of the photosensitive drum, a transfer charger is movable together with the paper guide assembly, and a spring resiliently presses the transfer charger toward the photosensitive drum.  When the upper cover is closed, the photosensitive drum is caused to abut on the support rollers, and the relative position between the paper guide assembly, the photosensitive drum, and the transfer charger is thereby maintained constant.
Patent CA-2061700-C (CA)
Title: Video signal synthesizing system for synthesizing system's own signal and external signal
Inventor: HASEGAWA MAKOTO
IPC: H04N5/445
Filed: 1992-02-18
Granted: 1999-01-12
Abstract: In a video signal synthesizing system for synthesizing at least one inner video signal such as an analog video signal, digital image data, and encoded, compressed image data and so on from a system's own apparatus and an external analog video signal such as a character signal from an external apparatus; the inner video signal is converted into a digital video signal and the synchronous signal thereof is detected; the inner digital video signal is synthesized in digital form if a plurality of the inner video signal exists and stored in a memory; the level of the external analog video signal and the synchronous signal thereof are adjusted to be equal to the level of the inner video signal and the synchronous signal thereof, and then the adjusted external video signal and the inner video signal transmitted from the memory and converted to the analog signal are synthesized by the analog video signals adding means to be displayed by the display.
Patent CA-2061796-C (CA)
Title: High mobility integrated drivers for active matrix displays
Inventor: SARMA KALLURI R
IPC: H01L21/84
Filed: 1992-02-25
Granted: 2002-12-24
Abstract: High mobility thin film transistors for fabricating integrated drivers for active matrix displays and a special method of fabrication for obtaining the thin film transistors having mobility sufficiently high enough as drivers operable in the several megahertz frequency range needed for driving high resolution active matrix displays.
Patent CA-2063904-C (CA)
Title: Modulated temperature control for environmental chamber
Inventor: BENEVELLI JOHN A
IPC: F24F11/08
Filed: 1992-03-24
Granted: 1994-08-02
Abstract: Abstract of the Disclosure A temperature-controlled environmental chamber includes a resistance heater controlled by a solid state relay and a refrigeration unit including an electronically controlled suction throttling valve connected in the refrigerant line between the evaporator and the inlet of the compressor.  A temperature controller senses the temperature in the chamber and compares it to a set point temperature and outputs a pulse-width modulated control signal indicative of the difference between the two temperatures.  The control signal directly controls the heater relay for substantially continuous variation between minimum and maximum heating conditions.  The control signal is converted to an analog signal for controlling the throttling valve of the refrigeration unit for substantially continuous variation between maximum and minimum cooling conditions, so that the amount of cooling provided is inversely proportional to the amount of heating provided.  A hot gas bypass is provided for maintaining a minimum input pressure on the condenser and a refrigerant bypass is provided to maintain the input temperature of the compressor below a predetermined maximum.
Patent CA-2064977-C (CA)
Title: Catalyst for purifying exhaust gas
Inventor: SHIRAISHI EIICHI
IPC: B01J23/02
Filed: 1992-04-02
Granted: 1998-09-22
Abstract: An exhaust gas purifying catalyst for simultaneous removal of carbon monoxide, hydrocarbons and nitrogen oxides from  an  exhaust  gas  from  an  internal-combustion  engine, having carried on a monolithic carrier a mixture comprising a catalytically active component comprising 0.5 to 30 g of palladium, 0.1 to 50 g of an alkaine earth metal oxide,  10 go 150 g of cerium oxide, and 0.1 to 50 g of zirconium oxide and 10 to 300 g of an activated alumina.
Patent CA-2065893-C (CA)
Inventor: ONO MIYOKO
IPC: C12C1/18
Filed: 1992-04-13
Granted: 2003-11-11
Abstract: The present invention is directed to a malt for brewing beer prepared by removing lipids by using subcritical or supercritical carbon dioxide, a beer using the said malt, and a method of preparing the said beer. In the beer obtained by using the malt prepared by the method of the present invention, wort clarity is good, filtration becomes rapid, and filtration efficiency is improved. Also, the obtained beer has good foam head retention, good foam lacing, a refreshingly clean taste and good flavor stability.
Patent CA-2066218-C (CA)
Title: Flexible looping tool
Inventor: PRAHL ERNST
IPC: B24D11/00
Filed: 1990-10-09
Granted: 1998-05-19
Abstract: Flexible abrasive means having an underlay, which comprises a knitted fabric, which consists of a base knitted fabric (1) and at least one layer of warp threads (6) and at least one layer, separated from the latter, of weft threads (5) and includes a strengthening size. In each case a plurality of warp threads (6) per needle space  (3)  are held next to one another by different binding into the pattern in such a way that they run partly under and partly over the cross threads (4) of the base knitted fabric (1). All of the warp threads of a group of warp threads can be separated from one another by cross threads of this base knitted fabric alternating from the upper side to the underside of this warp thread group. A high dimensional stability of the abrasive means in the directions other than the directions of the warp and weft threads is obtained.
Patent CA-2066408-C (CA)
Title: Primary coatings for optical glass fibers including polyether acrylates
Inventor: COADY CLIVE J
IPC: C03C25/1065
Filed: 1990-09-05
Granted: 2004-04-27
Abstract: Photocurable liquid coating compositions adapted to provide primary coatings for optical glass fibers are disclosed. These compositions comprise a (meth)acrylate-terminated polyurethane a (meth)acrylate of an unsubstituted or C1-C10 alkyl substitut ed phenol that is alkoxylated with a C2-C4 alkylene oxide and at least one alkylacrylate having a Tg below about -45 °C. I Films produced from these ultraviolet light curable compositions are flexible and possess good water resistance and good wet adhesion.
Patent CA-2074610-C (CA)
Title: Wireless telephone with frequency inversion scrambling
Inventor: HOUGHTON MICHAEL W
IPC: H04M1/725
Filed: 1992-07-24
Granted: 1996-07-09
Abstract: The wireless telephone of the present invention is com-prised of a base unit, coupled to a land-line telephone system, and a remote unit that communicates with the base unit over radio frequencies.  The remote unit has scrambling circuits (207 and 216) for encrypting voice signals transmitted to the base unit and decrypting voice signal received from the base unit.  The base unit also has scrambling circuits (107 and 116) for encrypting voice signals transmitted to the remote unit and decrypting voice signals received from the remote unit. The wireless telephone uses a keypad (222) for initiating a demonstration mode that allows both parties to the conversa-tion to hear the scrambled audio signal.
Patent CA-2078940-C (CA)
Title: Compound semiconductor device
Inventor: NAKAGAWA YOSHIKAZU
IPC: H01L21/338
Filed: 1992-09-23
Granted: 1996-11-12
Abstract: A compound semiconductor device includes an undoped semiconductor layer; a doped semiconductor layer formed on the undoped  semiconductor  layer  and  having  smaller  electron affinity than the undoped semiconductor layer; a gate electrode formed on the doped semiconductor layer; a cap layer formed on the doped semiconductor layer; and a source electrode and a drain electrode respectively formed on the cap layer.  In the device,  an undoped-material  layer having  greater electron affinity than the doped semiconductor layer and the cap layer, is formed between the doped semiconductor layer and the cap layer.  A layer which has the same composition and impurities as those of the doped semiconductor layer and whose impurity concentration  is  sufficiently  higher  than  an impurity concentration of the doped semiconductor layer may, be provided between the doped semiconductor layer and the cap layer.
Patent CA-2079051-C (CA)
Title: Bottom dump trailer
Inventor: DECAP CAMILLE
IPC: B60P1/56
Filed: 1992-09-24
Granted: 1997-09-30
Abstract: A conventional bottom dump truck includes doors which in a closed position are suspended underneath the bottom opening of the hopper of the trailer. The doors are opened outwardly and upwardly by pivotal action about an upper suspension point of each of the doors. The amount of movement of the door is limited by an abutment member mounted upon a vertical flange on the outside surface of the hopper bottom. The abutment member includes an abutment plate extending outwardly from the flange together with a bracket which has a slot slidable along the length of the flange and locatable at different points along the length of the flange by a pin passing through openings in the bracket and one of a plurality of openings in the flange. The flange can be rotated about an axis longitudinal of the flange to move the abutment member out of the path of the abutment on the door and simultaneously to move a second abutment member into engagement with the door which is positioned at the maximum allowable opening of the door.
Patent CA-2085596-C (CA)
Inventor: GILL MICHAEL DENNIS
IPC: G02B6/42
Filed: 1991-07-02
Granted: 1998-05-12
Abstract: L'invention est un système optique comportant une carte-mère optique hybride (M1) portant une pluralité d'interconnexions et un connecteur (P1). Une région de connexion (S1) est formée sur une portion seulement de l'un des bords de la carte-mère optique hybride (M1). Cette région de connexion (S1) contient un certain nombre d'interconnexions optiques et le connecteur (P1) contient un dispositif optique (7). Le connecteur (P1) peut être connecté à la région de connexion (S1) pour l'alignement de son dispositif optique (7) avec les interconnexions optiques internes de la région de connexion. Le connecteur (P1) et la région de connexion (S1) ont chacun des premiers et des seconds substrats (1,2 et 11,12) faits d'un matériau cristallin et contenant des plans sécants qui peuvent être tracés par gravure. Des sillons d'alignement (3,13) sont gravés sur chaque premier substrat (1,11) et des sillons d'alignement (4,14) sont gravés sur chaque second substrat (2,12) en relation complémentaire avec les sillons d'alignement du premier substrat connexe. Les sillons d'alignement (3,13 et 4,14) du premier et du second substrat (1,2 et 11,12) du connecteur (P1) et de la région de connexion (S1) sont alignés de façon précise et sont contigus quand les deux substrats sont placés face-à-face et les sillons d'alignement contigus du connecteur peuvent être alignés avec précision et être contigus aux sillons d'alignement alignés de la région de connexion. Le connecteur (P1) est doté d'un dispositif d'alignement (5) qui sert à positionner son dispositif optique associé (7) avec précision entre ses deux substrats (1,12) par rapport aux sillons alignés contigus (3,4) de ces derniers.
Patent CA-2088866-C (CA)
Inventor: WUERCH DANIEL W
IPC: C09D5/00
Filed: 1993-02-05
Granted: 2004-07-20
Abstract: An improved liquid spray masking composition including an effective amount of a nonvolatile polyhydroxy component is provided. The preferred polyhydroxy components comprise polyglycerols, especially corn syrup. The presence of such materials in masking compositions improves performance of the compositions with respect to inhibition of high temperature swelling, blistering or spotting of the painted surface to which it is applied.
Patent CA-2095756-C (CA)
Title: Method and apparatus for linear color processing
Inventor: EDGAR ALBERT D
IPC: G09G5/02
Filed: 1993-05-07
Granted: 2001-04-24
Abstract: A method for processing multiple color signals representing an image including the steps of obtaining multiple linear color signals representing the image, translating the multiple linear color signals to a linear luminance signal and at least one linear chrominance signal, and converting the linear luminance signal to a nonlinear luminance signal.      In addition, an apparatus for processing multiple color signals representing an image including apparatus for obtaining multiple linear color signals representing the image, apparatus for translating the multiple linear color signals to a linear luminance signal and at least one linear chrominance signal, and apparatus for converting the linear luminance signal to a nonlinear luminance signal.
Patent CA-2098066-C (CA)
Inventor: VAN MELLE HUBERT
IPC: A47G19/22
Filed: 1993-06-09
Granted: 1996-10-29
Abstract: A disposable volume-extending drink-through lid for hot and cold beverages that extends beyond the upper edge of a drinking cup is provided. The lid may be integrally formed by conventional thermoforming processes to include a cup engaging section, a raised volume-extending section and a drink-through section above the upper surface of the volume-extending section to allow a consumer to drink without leakage or spills beverages such as whipped cream-toped cappuccino, ice cream sodas and the like while moving or in a moving vehicle.
Patent CA-2106164-C (CA)
Inventor: WORRALL PETER WILLIAM
IPC: F16J15/20
Filed: 1993-09-14
Granted: 2000-09-12
Abstract: This invention relates to valves and, more particularly to sealing valves during closure.      In more detail, the valve according to the present invention comprises a valve seat member and a valve member movable towards and away from the seat to close and open the valve and a seating element made from a resilient material and attached to one of the members, the sealing element possessing. an initial deformable characteristic whereby initial closure of the valve causes the seating element to substantially conform to the shape of the other member and retain the so-conformed shape.
Patent CA-2108233-C (CA)
Title: Method and apparatus for reducing the peak-to-average power in multi-carrier rf communication systems
Inventor: ARNTZ BERNARD JAMES
IPC: H04J1/05
Filed: 1993-10-12
Granted: 1999-09-28
Abstract: Therefore a method and apparatus for controlling a linear amplifier processing a plurality of carrier signals of a multi channel carrier system alters the phases of one or more sources of the multi-channel signals in response to a detected peak envelope power or of a peak to average power ratio at regular scheduled intervals. This reduces the peak envelope power to average envelope power ratio and enables the reduction in the power rating required by the amplifiers handling the multi-channel signal.
Patent CA-2109225-C (CA)
Title: Accumulator head for extrusion blow molding machine
Inventor: HSU JOHN S
IPC: B29C48/32
Filed: 1992-07-02
Granted: 1998-12-29
Abstract: An accumulator head for an extrusion-blow molding machine. The accumulator head includes an annular inner sleeve member slidably positioned within an accumulator outer barrel, and a tubular inner body member received within the sleeve member.  The sleeve member and body member are adapted to be slidable together within the accumulator barrel to expel collected plasticated material.  The inner sleeve member includes a pair of external slots formed in the outer surface that communicate with the accumulator inlet and with respective radially extending flow passageways through the inner sleeve to convey plasticated material from the accumulator inlet into a pair of helical flow channels formed in the accumulator inner body member. The flow channels communicate with an outlet area to convey the plasticated material to an inner accumulation chamber through an annular collector channel and an annular flow passageway that provides an extruded parison having a uniform conformation without flow or separation lines.  Suitable actuators are provided for together moving the inner sleeve and the inner body member to expel plasticated material, and also to selectively move an inner mandrel to provide a desired parison die outlet opening.
Patent CA-2113520-C (CA)
Title: Sliding door valve for utility vacuum cleaner
Inventor: BOSYJ NICK M
IPC: A47L5/00
Filed: 1994-01-14
Granted: 2001-01-02
Abstract: A unique valve door mechanism is disclosed for use in a dual chambered utility type vacuum cleaner having two suction inlets whereby the inactive suction inlet may be selectively closed and sealed off from the atmosphere. The valve door is slidingly suspended between guide rails whereby the door may be selectively positioned adjacent the suction inlet to be disabled.      Atmospheric pressure is utilized to urge the valve door against the selected inlet opening thereby sealing off the inlet from the atmosphere.
Patent CA-2131112-C (CA)
Inventor: HAYMAN PETER A
IPC: F21V21/04
Filed: 1994-08-30
Granted: 2005-02-15
Abstract: A ring/baffle element for a trim of a recessed lighting fixture comprises ring and baffle portions formed of one piece. The ring portion includes a flat trim ring.      The baffle portion includes an upstanding flange, a sleeve, and a connector wall. The flange forms a socket to receive the lower end of a reflector. The sleeve is situated within a space formed by an inner periphery of the trim ring. The connector wall connects the sleeve to the ring portion. The sleeve has an inner surface forming a central main light passage. The baffle portion includes a plurality of secondary light passages spaced around a vertical axis defined by the sleeve for emitting a secondary light pattern around the outer perimeter of the main light passage. The secondary light passages can be formed in the connector wall or the sleeve.