Patents by Inventor Peter Allen
Peter Allen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6376561Abstract: Belt pressing or other pressure dewatering of a high solids mineral suspension is facilitated by flocculating the suspension by mixing into the suspension anionic flocculant having IV at least 5 dl/g and a minor amount of a cationic flocculant which generally has IV at least 4 dl/g. The flocculants are normally such that counterionic precipitation occurs.Type: GrantFiled: April 10, 2000Date of Patent: April 23, 2002Assignee: Ciba Specialty Chemicals Water Limited TreatmentsInventors: Anthony Peter Allen, Philip McColl, George Thomas Staines
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Patent number: 6224332Abstract: A turbine includes upper and lower inner shell sections mounting the nozzles and shrouds and which inner shell is supported by pins secured to a surrounding outer shell. To disassemble the turbine for access to the inner shell sections and rotor, an alignment fixture is secured to the lower outer shell section and has pins engaging the inner shell section. To disassemble the turbine, the inner shell weight is transferred to the lower outer shell section via the alignment fixture and cradle pins. Roller assemblies are inserted through access openings vacated by support pins to permit rotation of the lower inner shell section out of and into the lower outer shell section during disassembly and assembly. The alignment fixture includes adjusting rods for adjusting the inner shell axially, vertically, laterally and about a lateral axis. A roller over-cage is provided to rotate the inner shell and a dummy shell to facilitate assembly and disassembly in the field.Type: GrantFiled: May 14, 1999Date of Patent: May 1, 2001Assignee: General Electric Co.Inventors: David Leach, Peter Allen Bergendahl, Stuart Forrest Waldo, Robert Leroy Smith, Robert Kim Phelps
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Patent number: 6188391Abstract: By suitable use of screen-printed carbon ink patterning, combined with patterning of the solder-mask layer on the top (finger) surface, a compact capacitive touchpad pointing device has been realized using only a two-layer board as a substrate. The first layer, on the topside of the printed circuit board, combines both the horizontal and vertical sensor electrode traces. The second layer, located on the underside of the printed circuit board, is formed in the conventional manner by attaching the controller chip and/or related circuitry.Type: GrantFiled: July 9, 1998Date of Patent: February 13, 2001Assignee: Synaptics, Inc.Inventors: Joel Seely, Robert Leonard Malak, Timothy Peter Allen, Richard Robert Schediwy, William Andrew Cesarotti
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Patent number: 6171506Abstract: A process of thickening an aqueous suspension of mineral solids by sedimentation comprising adding to the suspension water-soluble anionic bridging polymeric flocculant having intrinsic viscosity at least 5 dl/g and water-soluble cationic polymeric flocculant, allowing the solids to settle under gravity so as to form a lower underflow fraction containing a concentration of solids greater than that of the suspension and an upper overflow fraction containing a concentration of solids lower than that of the suspension and removing the underflow fraction, characterised in that the anionic and cationic flocculants are added to the suspension as an aqueous composition formed by blending 1 part by weight of the cationic polymeric flocculant with 2 to 99 parts by weight of the anionic polymeric flocculant and sufficient water to give a total polymer concentration of below 5 wt % and under conditions whereby counter-ionic precipitation can occur and in the aqueous composition substantially all of the anionic polymerType: GrantFiled: January 20, 1999Date of Patent: January 9, 2001Assignee: Ciba Specialty Chemicals Water Treatments LimitedInventors: Anthony Peter Allen, Peter Albert Sedders
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Patent number: 6152985Abstract: A process is provided for pelletising a metal ore comprising forming an intimate mixture of particulate ore and a binder in the presence of moisture, forming green pellets by agitation of the mixture and firing the green pellets to produce ore pellets. In the process the binder comprises a hydroxamate polymer made from water-soluble ethylenically unsaturated monomer or monomer blend and which has pendant groups of the formula ##STR1## This provides advantages in wet strength, dry strength and drop number of pellets, especially at low moisture content of the pellets.Type: GrantFiled: November 12, 1998Date of Patent: November 28, 2000Assignee: Ciba Specialty Chemicals Water Treatments LimitedInventor: Anthony Peter Allen
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Patent number: 6127875Abstract: A voltage boosting circuit which derives an output voltage than is substantially twice the magnitude of a supply voltage applied thereto. The voltage boosting circuit consists of complementary acting boost circuits each having a pair of switches (42A, 52A; 42B, 52B) connected between an input of the voltage boosting circuit, at which is applied the supply voltage, and an output at which the output voltage is produced. Boost capacitors (48A, 48B) are connected between the respective switches of the complementary boost circuits and the switches of the these circuits are opened and closed out of phase with respect to each other in response to clocking signals being applied thereto such that a boosted output voltage is produced during each half cycle of the clocking signals.Type: GrantFiled: August 13, 1998Date of Patent: October 3, 2000Assignee: Motorola, Inc.Inventors: Steven Peter Allen, Ahmad H. Atriss, Gerald Lee Walcott, Walter C. Seelbach
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Patent number: 6104726Abstract: A technique and method that efficiently and simultaneously transfers both voice and data information over a single communications link (11). The technique and method utilizes a multi-rate vocoder (12) for providing voice information at a plurality of different rates. Accordingly, the vocoder may be dynamically adjusted during transfer of information to meet channel bandwidth requirements. The technique and method also utilizes a bit-control protocol for inserting voice information within a stream of data information by the use of inserting flags having predetermined bitstreams. Accordingly, voice information is dynamically inserted into an existing bitstream of data information such that voice information is transferred only upon demand and when needed. This prevents the transfer of useless information, such as voice information when a speaker is silent and, thus, allows for very efficient utilization of system bandwidth.Type: GrantFiled: March 31, 1997Date of Patent: August 15, 2000Assignee: Motorola, Inc.Inventors: William Chunhung Yip, Steven Peter Allen, James Brian Piket
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Patent number: 6063291Abstract: Belt pressing or other pressure dewatering of a high solids mineral suspension is facilitated by flocculating the suspension by mixing into the suspension anionic flocculant having IV at least 5 dl/g and a minor amount of a cationic flocculant which generally has IV at least 4 dl/g. The flocculants are normally such that counterionic precipitation occurs.Type: GrantFiled: February 5, 1998Date of Patent: May 16, 2000Assignee: Ciba Specialty Chemicals Water Treatments LimitedInventors: Anthony Peter Allen, Philip McColl, George Thomas Staines
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Patent number: 5930483Abstract: A method and apparatus are provided for controlling communications on a small computer system interface (SCSI). A cache memory is arranged for storing an input queue, a status queue and a cache operation queue. An input engine detects unsolicited data from the SCSI and transfers the detected unsolicited data to the input queue. A status engine transfers status information between the SCSI and the status queue. A cache engine transfers data between the SCSI and the cache operation queue. Each of the input engine, the status engine, and the cache engine is independent to enable full duplex operation. A connection arbitrator is shared between the input engine, the status engine, and the cache engine enabling a connection to be shared by the input engine, the status engine, and the cache engine.Type: GrantFiled: December 9, 1996Date of Patent: July 27, 1999Assignee: International Business Machines CorporationInventors: Peter Allen Cummings, Brian Lee Morger, Richard Rolls, Teras Eve Yonker
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Patent number: 5815020Abstract: A quadrant detector circuit (400) has a comparator (442) having a pair of inputs (438, 440). A first (438) of the pair of inputs (438, 440) is coupled to an in-phase signal (434) and a second (440) of the pair of inputs (438, 440) is coupled to a quadrature phase signal (436). A sample counter (448) has a reset (446) coupled to an output (444) of the comparator (442). A controllable switch (456) has a selection input (454) coupled to an output (452) of the sample counter (448). The controllable switch (456) is capable of switching between a local oscillator signal (458) and an inverse local oscillator signal (460).Type: GrantFiled: September 24, 1996Date of Patent: September 29, 1998Assignee: Motorola, Inc.Inventors: Steven Peter Allen, William Chunhung Yip
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Patent number: 5664113Abstract: Working assets (26) are equipped with ID tags (56) that respond to interrogations from interrogators (50). Each interrogated tag (56) sends response codes that identify the tag (56) and working asset (26), can describe an amount of use experienced by the working asset (26), and can describe unused capacity available for holding a consumable commodity, such as fuel. Interrogators (50) are positioned at normally closed portals (40, 42, 62, 64) of staging areas (22, 24). A database (94) contains information concerning working assets (26), users (28) to whom working assets (26) have been assigned, and caretakers (38) who may be authorized to transport various working assets (26). The caretakers (38) also have ID tags (58). A portal (40, 42, 62, 64) temporarily opens or remains closed in response to the interrogation that takes place at the portal (40, 42, 62, 64) and data stored in the database (94).Type: GrantFiled: December 10, 1993Date of Patent: September 2, 1997Assignee: Motorola, Inc.Inventors: William Robert Worger, Roman Casimir Lopatynski, Steven Peter Allen, Gerald Vincent Piosenka
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Patent number: 5102263Abstract: A liner for large diameter pipes is formed from lengths of PVC panels (10) which are cut to length and placed around the wall of the pipe, the ends (19) of the panels being butt-joined by joining strips (20). Each panel (10) has a formation along one side complementary with a formation along the other side so that adjacent panels (10) can be clipped together to form a liner extending from manhole to manhole along the pipe.Type: GrantFiled: July 18, 1989Date of Patent: April 7, 1992Assignee: Danby of North America, Inc.Inventors: Peter Allen, Sydney Molyneux
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Patent number: 4963211Abstract: A machine winds tubes from strip (41) of the type having side flanges (43) with intermediate flanges (44) between, the strip (41) being fed into an annular space (21) between a cylindrical outer sleeve (18) fixed to a base plate (10) and a cylindrical driven core (20) rotatable coaxially within the sleeve (18). A series of pressure rollers (37) are mounted along a helical path on the sleeve (18), each entering the annular space (21) by way of an opening (37) in the sleeve, one such opening (37) being an inlet opening for the strip (41). The rollers (37) press the strip (41) into frictional engagement with the rotating core (20) and guide it to form a helix with closely adjacent convolutions. Also fed into the annular space (21) is a longitudinally recessed locking strip (47) which the rollers (37) press into locking engagement with the adjacent side flanges (43) of successive convolutions of the helically wound strip (41).Type: GrantFiled: May 25, 1989Date of Patent: October 16, 1990Assignee: Danby Pty, Ltd.Inventors: Peter Allen, Sydney Molyneux
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Patent number: 4893389Abstract: A method for reinstating branch lines to main sewers or pipes which have been relined is used in which inflatable plug seals the branch line and grout is injected via an injection pipe to fill the cavity at the junction around the liner. When the grout has initially set the inflatable plug is withdrawn and a pilot hole is cut through the grout and liner by a cutting tool fed down the branch line on a flexible drive. A reaming tool, attached to the flexible drive is drawn from within the liner towards the branch line to open up the pilot hole to fully open the connection between the main sewer or pipe and the branch line.Type: GrantFiled: September 30, 1988Date of Patent: January 16, 1990Inventors: Peter Allen, Sydney Molyneux
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Patent number: 4678370Abstract: A method for lining a sewer pipe incorporate the steps of continuously forming a liner of helically wound strip, the strip having complementary engaging side formations, and feeding the liner into the sewer pipe. The ends of the liner are sealed to the sewer pipe and cementitious grout is pumped under pressure into the space between the liner and the sewer pipe to bond the liner is position.Type: GrantFiled: October 16, 1985Date of Patent: July 7, 1987Assignee: Danby Pty. Ltd.Inventor: Peter Allen
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Patent number: 4623370Abstract: In a gas treatment process, a liquid tail product from a nitrogen wash column, which is typically incorporated into a process for the manufacture of ammonia from hydrocarbons, coal or other carbonaceous material, is separated in cryogenic distillation columns into product streams. Streams rich in hydrogen and carbon monoxide are available at elevated pressure and may be beneficially recycled to the ammonia manufacturing process. The process requires no external source of refrigeration and no compressor is incorporated therein. A stream of liquid nitrogen, which may typically be available in an ammonia manufacturing plant, may optionally be used and, when used, will result in improved separation in the distillation columns.Type: GrantFiled: August 29, 1985Date of Patent: November 18, 1986Assignee: Aeci LimitedInventors: Peter Allen, John W. Hemmings
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Patent number: 4053375Abstract: Alumina-cryolite waste from aluminum pot lines is subjected to oxidation in a fluidized bed reactor to remove carbon and organic contamination. Agglomeration of the alumina-cryolite product occurs in the fluidized bed and a pellet product suitable for return to the aluminum pot lines is produced.Type: GrantFiled: July 16, 1976Date of Patent: October 11, 1977Assignee: Dorr-Oliver IncorporatedInventors: Elliott J. Roberts, Stanley Bunk, Peter Allen Angevine
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Patent number: 4002177Abstract: Microporous styrene polymers are provided having randomly interconnected open network of irregularly shaped pores whose walls consist of cohered spherical particles of the polymer. These microporous styrene polymers are produced by mixing styrene polymer latex with a water-soluble ether, casting, molding, or impregnating the resulting mixture into a fibrous material, heating same to a temperature of from about 80.degree. C to about 120.degree. C and removing the ether.Type: GrantFiled: March 6, 1975Date of Patent: January 11, 1977Assignee: Philip Morris IncorporatedInventors: Norman B. Rainer, Peter Allen Wilson
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Patent number: 3977417Abstract: The invention relates to a smoking article and to a process of filtering tobacco smoke comprising passing tobacco smoke through a particulate, solidified cross-linked organic oil. An inorganic or organic powder may be used in conjunction with the particulate solidified oil in order to improve bulk handling characteristics and to improve the filtering qualities of the material.Type: GrantFiled: March 23, 1973Date of Patent: August 31, 1976Assignee: Philip Morris IncorporatedInventors: Charles B. Hoelzel, Norman B. Rainer, Peter Allen Wilson
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Patent number: 3957059Abstract: Novel compositions are prepared by impregnating activated alumina with sodium permanganate and a basic sodium compound. When used as a granular filter material in combination with a tobacco product as in a smoking article comprising a cigarette in combination with the filter materials, nitrogen oxides can be significantly reduced in the smoke obtained from the tobacco product after the filter material is stored for long periods of time in the presence of the volatile components of the tobacco product and/or moisture. Activated carbon may also be combined with the composition.Type: GrantFiled: February 10, 1975Date of Patent: May 18, 1976Assignee: Philip Morris IncorporatedInventors: Norman B. Rainer, Peter Allen Wilson