Patents by Inventor Tilak R. Varma
Tilak R. Varma 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: 8549713Abstract: A security zipper is provided, which includes a consumer side zipper pair and a product side zipper pair, where each zipper pair is capable of secure mating. Between the zipper pairs is an intermediate flange pair which is layered with an adhesive as well as an adhesive enhancer to securely connect the intermediate flange pair. A slider is provided over the consumer side zipper pair, the product side zipper pair and the intermediate flange pair which mates the zipper pairs and connects the intermediate flanges so that the zipper is securely closed. A bag is also disclosed, which includes the security zipper and a connected product side pouch. In addition, a method for manufacturing the bag is disclosed.Type: GrantFiled: November 22, 2010Date of Patent: October 8, 2013Assignee: Illinois Tool Works Inc.Inventors: David J. Anzini, Eric Plourde, Robert C. Stolmeier, Lawrence Share, Owen J. McGarel, Tilak R. Varma, Kevin P. Olechowski, Paul Michael Jenkins, Kenny E. McCracken
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Publication number: 20110283488Abstract: A security zipper is provided, which includes a consumer side zipper pair and a product side zipper pair, where each zipper pair is capable of secure mating. Between the zipper pairs is an intermediate flange pair which is layered with an adhesive as well as an adhesive enhancer to securely connect the intermediate flange pair. A slider is provided over the consumer side zipper pair, the product side zipper pair and the intermediate flange pair which mates the zipper pairs and connects the intermediate flanges so that the zipper is securely closed. A bag is also disclosed, which includes the security zipper and a connected product side pouch. In addition, a method for manufacturing the bag is disclosed.Type: ApplicationFiled: November 22, 2010Publication date: November 24, 2011Applicant: ILLINOIS TOOL WORKS INC.Inventors: David J. ANZINI, Eric PLOURDE, Robert C. STOLMEIER, Lawrence SHARE, Owen J. MCGAREL, Tilak R. VARMA, Kevin P. OLECHOWSKI, Paul Michael JENKINS, Kenny E. MCCRACKEN
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Patent number: 7838095Abstract: A polymeric void-board is placed between adjacent horizontal layers of bricks to maintain an opening in a lower of the layers. The void-board is fabricated from a first relatively thin planar element having first and second surfaces having a plurality of parallel ribs extending from and generally transverse to the first surface and a second relatively thin planar element having first and second surfaces having a plurality of parallel ribs extending from and generally transverse to the first surface. The first and second elements are joined to one another with the ribs of the first element engaging and joined to the second element.Type: GrantFiled: June 17, 2005Date of Patent: November 23, 2010Assignee: Illinois Tool Works, Inc.Inventors: Tilak R. Varma, Lawrence Share, Lawrence R. Peck
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Patent number: 7285748Abstract: The heating device includes a conductive layer which is positioned on an electrically insulative substrate. Preferably, the conductive layer is screen printed onto the substrate. The substrate is designed to limit elongation of the conductive layer, thereby improving the durability of the conductor and enabling the heating device to be used in flexible applications, such as automobile seats. The substrate can include at least one aperture passing therethough to further improve flexibility, fatigue resistance, and breathability of the heater. The conductive layer is configured to include a buss structure with a first buss ground inwardly adjacent from the periphery of the heating device and a first buss with serpentine paths extending from one edge of the heating device to another edge. The buss structure further includes a second buss with L-shaped portions positioned between the serpentine paths and the first buss ground. The second buss ground is located in a central location between the serpentine paths.Type: GrantFiled: December 21, 2004Date of Patent: October 23, 2007Assignee: Illinois Tool Works Inc.Inventors: James P. Nelson, Tilak R. Varma, Michael Starozhitsky, Paul J. Storiz, Edward Bulgajewski
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Patent number: 7053344Abstract: A self-regulating flexible heater for automobiles and other vehicles which is comprised of a breathable substrate (10) to which is applied a coating (14) of a conductive material and a coating (12) of positive temperature coefficient material.Type: GrantFiled: January 24, 2000Date of Patent: May 30, 2006Assignee: Illinois Tool Works IncInventors: James Surjan, Fred A. Kish, Tilak R. Varma, Edward Bulgajewski, by Antoinette Chiovatero
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Patent number: 6992129Abstract: A flame retardant composition includes a polymeric base material, a non-halogenated flame retardant material and a synergist material present in a concentration of about 1 percent by weight of the composition. The synergist is substantially free from metal oxides. The flame retardant composition achieves a flammability rating of at least V-2 when tested in accordance with UL testing conditions.Type: GrantFiled: October 30, 2003Date of Patent: January 31, 2006Assignee: Illinois Tool Works Inc.Inventors: Chris A. Benson, Tilak R. Varma, Lawrence L. Lezon
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Patent number: 6989184Abstract: An extruded polymeric void-board is configured for placement between adjacent horizontal layers of bricks to maintain an opening in a lower layer of the bricks. The void-board is formed as a relatively thin planar element having first and second surfaces. A plurality of parallel ribs extend from and generally transverse to the first side. The ribs have a predetermined height to width ratio and have a height that is less than a thickness of the planar element. The ribs being formed parallel to one another. A method for forming a bundle of bricks with the void-board is also disclosed.Type: GrantFiled: March 18, 2004Date of Patent: January 24, 2006Assignee: Illinois Tool Works, Inc.Inventors: David J. Duke, William J. Williams, John M. Kruelle, Tilak R. Varma
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Patent number: 6884965Abstract: The heating device includes a conductive layer which is positioned on an electrically insulative substrate. Preferably, the conductive layer is screen printed onto the substrate. The substrate is designed to limit elongation of the conductive layer, thereby improving the durability of the conductor and enabling the heating device to be used in flexible applications, such as automobile seats. The substrate can include at least one aperture passing therethough to further improve flexibility, fatigue resistance, and breathability of the heater. The conductive layer is configured to include a buss structure with a first buss ground inwardly adjacent from the periphery of the heating device and a first buss with serpentine paths extending from one edge of the heating device to another edge. The buss structure further includes a second buss with L-shaped portions positioned between the serpentine paths and the first buss ground. The second buss ground is located in a central location between the serpentine paths.Type: GrantFiled: September 13, 2002Date of Patent: April 26, 2005Assignee: Illinois Tool Works Inc.Inventors: James P. Nelson, Tilak R. Varma, Michael Starozhitsky, Paul J. Storiz, Edward Bulgajewski
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Publication number: 20040170837Abstract: A flame retardant composition includes a polymeric base material, a non-halogenated flame retardant material and a synergist material present in a concentration of about 1 percent by weight of the composition. The synergist is substantially free from metal oxides. The flame retardant composition achieves a flammability rating of at least V-2 when tested in accordance with UL testing conditions.Type: ApplicationFiled: October 30, 2003Publication date: September 2, 2004Inventors: Chris A. Benson, Tilak R. Varma, Lawrence L. Lezon
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Publication number: 20030102296Abstract: The heating device includes a conductive layer which is positioned on an electrically insulative substrate. Preferably, the conductive layer is screen printed onto the substrate. The substrate is designed to limit elongation of the conductive layer, thereby improving the durability of the conductor and enabling the heating device to be used in flexible applications, such as automobile seats. The substrate can include at least one aperture passing therethough to further improve flexibility, fatigue resistance, and breathability of the heater. The conductive layer is configured to include a buss structure with a first buss ground inwardly adjacent from the periphery of the heating device and a first buss with serpentine paths extending from one edge of the heating device to another edge. The buss structure further includes a second buss with L-shaped portions positioned between the serpentine paths and the first buss ground. The second buss ground is located in a central location between the serpentine paths.Type: ApplicationFiled: September 13, 2002Publication date: June 5, 2003Inventors: James P. Nelson, Tilak R. Varma, Michael Starozhitsky, Paul J. Storiz, Edward Bulgajewski