Patents by Inventor Karnik Tarverdi
Karnik Tarverdi 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: 8833681Abstract: The current invention is directed to a method and apparatus for defibrillating cellulose fibers achieved through single or multiple passes of raw or pre-processed cellulose fiber slurry with a preferred solid material consistency range of 35% to 55% through twin-screw fiber processing machines. During this processing operation fiber slurries are optionally further enhanced with additional fiber and mineral additives to optimize performance of the material for specific end purposes. The hyper defibrillated fiber slurry produced can be defined as one reaching a Schopper-Riegler (SR) level between 75 SR and 85 SR and/or producing a pressed, dried board with a density of preferably at least 850 kg/m3.Type: GrantFiled: June 23, 2010Date of Patent: September 16, 2014Assignee: BASF SEInventors: Karnik Tarverdi, Trevor W R Dean, Robert Bramsteidl, Luca Achilli
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Patent number: 8752776Abstract: The invention according to the present invention relates to the manufacture of paper and or boards and/or binding agents and a method and apparatus related to the same by providing for the defibrillation of cellulose fibers into a form in which the same can be subsequently sued to form the finished product directly or can be used to bind other materials together and then be formed into the finished product. The apparatus includes a twin screw conveyor through the material and liquid passes to be processed.Type: GrantFiled: November 5, 2010Date of Patent: June 17, 2014Assignee: BASF SEInventors: Trevor W. R. Dean, Karnik Tarverdi, Robert Bramsteidl, Luca Achilli
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Publication number: 20130192776Abstract: The invention according to the present invention relates to the manufacture of paper and or boards and/or binding agents and a method and apparatus related to the same by providing for the defibrillation of cellulose fibres into a form in which the same can be subsequently sued to form the finished product directly or can be used to bind other materials together and then be formed into the finished product. The apparatus includes a twin screw conveyor through the material and liquid passes to be processed..Type: ApplicationFiled: November 5, 2010Publication date: August 1, 2013Applicant: INTERFACE INTERNATIONAL. B.V.Inventors: Trevor W.R. Dean, Karnik Tarverdi, Robert Bramsteidl, Luca Achilli
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Publication number: 20120187226Abstract: The current invention is directed to a method and apparatus for defibrillating cellulose fibers achieved through single or multiple passes of raw or pre-processed cellulose fiber slurry with a preferred solid material consistency range of 35% to 55% through twin-screw fiber processing machines. During this processing operation fiber slurries are optionally further enhanced with additional fiber and mineral additives to optimize performance of the material for specific end purposes. The hyper defibrillated fiber slurry produced can be defined as one reaching a Schopper-Riegler (SR) level between 75 SR and 85 SR and/or producing a pressed, dried board with a density of preferably at least 850 kg/m3.Type: ApplicationFiled: June 23, 2010Publication date: July 26, 2012Inventors: Karnik Tarverdi, Trevor W R Dean, Robert Bramsteidl, Luca Achilli
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Publication number: 20070004243Abstract: There is disclosed a flexible sheet structure having improved conformability yet remaining strong and robust. The structure is made up of a plurality of modules that allow relative rotation in both an axis parallel to the plane and perpendicular to the plane of the sheet when laid flat. This allows the density of the sheet to be locally or globally changed so that improved conformability around complex shapes is provided. There is also disclosed a means for locking and unlocking the modules of the sheet using a locking material in each connection that is activated by the external addition of energy (e.g. heat energy).Type: ApplicationFiled: November 5, 2004Publication date: January 4, 2007Inventors: Martin Ferguson-Pell, Graham Nicholson, David Hawes, Karnik Tarverdi, Peter Allan, Mike Bevis
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Publication number: 20050253295Abstract: An apparatus and a method for making a biodegradable material are disclosed. The apparatus comprises an extruder for forming a foamed starch rod and a heated die for modifying the rod. The rod is fed through the heated die by feeding rollers. A bonding agent application station is located downstream of the heated die and upstream of a packing unit. The method comprises forming a foamed starch rod by extrusion and passing the rod through a heated die. The rods may be formed into sheets or blocks by cutting, the application of bonding agent and adhering the cut rods together.Type: ApplicationFiled: April 29, 2005Publication date: November 17, 2005Inventors: Jin-Hua Song, Yong Kang, Karnik Tarverdi, Bruce Yeo
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Patent number: 6800601Abstract: A detergent bar is made by (1) applying pressure to a detergent composition to deliver it to a substantially closed mold at a temperature less than 70° C.; (2) ensuring the pressure on the composition at point of entry is greater than 29.4 psi under the action of an injector head for at least part of the time over which the composition enters the mold; (3) cooling in the mold to form bar; and (4) removing.Type: GrantFiled: February 28, 2001Date of Patent: October 5, 2004Assignee: Lever Brothers Company, division of Conopco, Inc.Inventors: Peter Stewart Allan, John Martin Cordell, Graeme Neil Irving, Suresh Murigeppa Nadakatti, Vijay Mukund Naik, Christine Ann Overton, Frederick Edmund Stocker, Karnik Tarverdi, John Colin Wahlers
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Patent number: 6703005Abstract: A deodorant or antiperspirant soft solid composition is filled into dispensing containers by injection moulding, i.e. under pressure, preferably in the vicinity of its normal setting temperature. The deodorant or antiperspirant composition is preferably continuously produced in a screw extruder, especially a twin screw extruder, controlled to deliver the composition in a suitably viscous state under low shear and particularly for formulations in which a particulate antiperspirant is suspended in a fluid carrier. The pressure in the injection head at the point of injection is greater than 120 kPa and in many instances from 800 to 2000 kPa. The combined process offers benefits for controlled fill of dispensing containers, particularly for formulations incorporating sensitive ingredients and offers tolerance in composition temperature at the time of fill.Type: GrantFiled: April 5, 2001Date of Patent: March 9, 2004Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.Inventors: Peter Stewart Allan, Michael Andrew Browne, Elfriede Maria Langeveld, Paul Lloyd, Reginald Manley, Paul Reissen Rennie, Frederick Edmund Stocker, Karnik Tarverdi, Jacqueline Marie Thorpe
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Patent number: 6338840Abstract: In a first aspect, a process for forming deodorant or antiperspirant sticks by continuously forming a mobile composition for dispensing into containers or molds at a rate matched with the rate at which it is dispensed, and in other aspects a process in which a mobile deodorant or antiperspirant composition is dispensed by injection molding, i.e. a process in which the deodorant or antiperspirant composition is dispensed under pressure. The composition at the time of injection moulding is preferably either in the vicinity of its regular set temperature, particularly in the range of about 0-3° C. below the regular set temperature and/or partially structured at the time of its delivery it into a container or mold.Type: GrantFiled: October 6, 1999Date of Patent: January 15, 2002Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.Inventors: Peter Stewart Allan, Elaine Susanne Bibby, Michael Andrew Browne, Elfriede Maria Langeveld, Paul Lloyd, Reginald Manley, Robert J Owen, Paul Riessen Rennie, Jean Lesley Scott, Frederick Edmund Stocker, Karnik Tarverdi, Jacqueline Maria Thorpe
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Publication number: 20010016566Abstract: A process for forming detergent bars by injection moulding in which a pressure is applied to a partially structured detergent composition to deliver it to a mould. The detergent composition can be delivered to the mould in a substantially semi-solid state, at a temperature below 70° C. and at a pressure at the point of injection of greater than 20 psi. Apparatus for forming detergent bars according the invention are also described.Type: ApplicationFiled: February 28, 2001Publication date: August 23, 2001Applicant: Lever Brothers Company, Division of Conopco, IncInventors: Peter Stewart Allan, John Martin Cordell, Graeme Neil Irving, Suresh Murigeppa Nadakatti, Vijay Mukund Naik, Christine Ann Overton, Frederick Edmund Stocker, Karnik Tarverdi, John Colin Wahlers
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Publication number: 20010011067Abstract: A process for forming detergent bars by injection molding in which a pressure is applied to a partially structured detergent composition to deliver it to a mold. The detergent composition can be delivered to the mold in a substantially semi-solid state, at a temperature below 70° C. and at a pressure at the point of injection of greater than 20 psi. Apparatus for forming detergent bars according the invention are also described.Type: ApplicationFiled: February 28, 2001Publication date: August 2, 2001Inventors: Peter Stewart Allan, John Martin Cordell, Graeme Neil Irving, Suresh Murigeppa Nadakatti, Vijay Mukund Naik, Christine Ann Overton, Frederick Edmund Stocker, Karnik Tarverdi, John Colin Wahlers
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Patent number: 6238612Abstract: A process for forming detergent bars comprising applying pressure to a detergent composition contained within a mould cavity. The detergent composition in the mould is in a substantially fluid or semi-solid state and the mould is substantially full before the pressure is applied.Type: GrantFiled: May 14, 1998Date of Patent: May 29, 2001Assignee: Lever Brothers Company, division of Conopco, Inc.Inventors: Peter Stewart Allan, John Martin Cordell, Graeme Neil Irving, Suresh Murigeppa Nadakatti, Vijay Mukund Naik, Christine Ann Overton, Frederick Edmund Stocker, Karnik Tarverdi
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Patent number: 6224812Abstract: A process for forming detergent bars by injection moulding in which a pressure is applied to a partially structured detergent composition to deliver it to a mould. The detergent composition can be delivered to the mould in a substantially semi-solid state, at a temperature below 70° C. and at a pressure at the point of injection of greater than 20 psi.Type: GrantFiled: May 14, 1998Date of Patent: May 1, 2001Assignee: Lever Brothers Company, division of Conopco, Inc.Inventors: Peter Stewart Allan, John Martin Cordell, Graeme Neil Irving, Suresh Murigeppa Nadakatti, Vijay Mukund Naik, Christine Ann Overton, Frederick Edmund Stocker, Karnik Tarverdi, John Colin Wahlers