Patents by Inventor Sudhir Brahmandam
Sudhir Brahmandam 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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Publication number: 20210408863Abstract: A pivot motor for a hair clipper is provided, including a stator with a plurality of laminations, a bobbin located in operational relation to the stator and having a coil of wire wound around the bobbin, an armature being configured for driving a hair clipper moving blade at one end, and having at least one magnet at an opposite end, the armature having a pivot point, and the motor being configured for operation between 2.5 and 4.Type: ApplicationFiled: June 24, 2021Publication date: December 30, 2021Inventors: David Joseph TODD, Rafi SYED, Curtis James DE FRANG, Stephan BEHA, Dustin R. TAYLOR, Jon Thomas FREAS, Jason Kyle EVERLY, Daniel Adam BLUMHOFF, Matthew USTERBOWSKI, Sudhir BRAHMANDAM, Matthew Jason BOWERS, Scott MELTON, Drew Paul MITCHELL
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Patent number: 11125439Abstract: Hot surface igniter assemblies used in cooktops are shown and described. The hot surface igniters include a silicon nitride ceramic body with an embedded, resistive, heat-generating circuit. When energized, the circuit generates temperatures in excess of 2000° F. in under 4 seconds to ignite cooking gas such as natural gas. To prevent damage to the igniter during use or cleaning, an insulator assembly is provided which protects the distal end of the igniter ceramic body from damage while still exposing it to the cooking gas flow from the burner. In addition, a number of different terminal connection schemes for connecting the igniters to a power source are shown and described.Type: GrantFiled: March 27, 2019Date of Patent: September 21, 2021Assignee: SCP Holdings, an assumed business name of Nitride Igniters, LLCInventors: Bruce C. Sprowl, Jack A. Shindle, Robert Davignon, Brian C. Dougherty, Sudhir Brahmandam
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Publication number: 20190301742Abstract: Hot surface igniter assemblies used in cooktops are shown and described. The hot surface igniters include a silicon nitride ceramic body with an embedded, resistive, heat-generating circuit. When energized, the circuit generates temperatures in excess of 2000° F. in under 4 seconds to ignite cooking gas such as natural gas. To prevent damage to the igniter during use or cleaning, an insulator assembly is provided which protects the distal end of the igniter ceramic body from damage while still exposing it to the cooking gas flow from the burner. In addition, a number of different terminal connection schemes for connecting the igniters to a power source are shown and described.Type: ApplicationFiled: March 27, 2019Publication date: October 3, 2019Inventors: Bruce C. Sprowl, Jack A. Shindle, Robert Davignon, Brian C. Dougherty, Sudhir Brahmandam
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Publication number: 20160151952Abstract: A pelletizing extrusion die comprising a die body contains a plurality of extrusion holes. Each of the extrusion holes is defined by a defining surface of the die body wherein at least a portion of the defining surface has a low-friction coating deposited thereon. A method for applying the low-friction coating to the defining surface wherein the applying step occurs at a temperature equal to less than about 520° C.Type: ApplicationFiled: February 8, 2016Publication date: June 2, 2016Inventors: Sudhir Brahmandam, Dave Richard Siddle, Irene Spitsberg
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Patent number: 9314985Abstract: A pelletizing extrusion die comprising a die body contains a plurality of extrusion holes. Each of the extrusion holes is defined by a defining surface of the die body wherein at least a portion of the defining surface has a low-friction coating deposited thereon. A method for applying the low-friction coating to the defining surface wherein the applying step occurs at a temperature equal to less than about 520° C.Type: GrantFiled: June 18, 2012Date of Patent: April 19, 2016Assignee: KENNAMETAL INC.Inventors: Sudhir Brahmandam, Dave Siddle, Irene Spitsberg
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Patent number: 9309895Abstract: A closed impeller has a base cover, which has a base interior surface, and a second cover. A vane, which has an inlet distal end and an outlet distal end, is on the base interior surface. The vane has low and high pressure side surfaces wherein they have a low or high pressure midpoint, respectively. A hard coating is on the low and high pressure side surfaces. The hard coating has a minimum low and high pressure coating thickness at their respective midpoints. The minimum low, as well as high, pressure coating thickness ranging between about 0.085 and about 0.8 of either one of the maximum outlet coating thickness at the outlet distal end or the maximum inlet coating thickness at the inlet distal end, respectively.Type: GrantFiled: June 18, 2012Date of Patent: April 12, 2016Assignee: KENNAMETAL INC.Inventors: Dave Siddle, Sudhir Brahmandam, Irene Spitsberg
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Publication number: 20140072469Abstract: In one aspect, tungsten carbide material systems are described herein which, in some embodiments, can provide desirable characteristics including chemical inertness, high hardness, reduced sensitivity to local compositional fluctuations and/or enhanced machining properties. In some embodiments, a tungsten carbide material described herein comprises 5.85-6.13 wt. % carbon, 0.85-1.05 wt. % chromium, less than 0.3 wt. % binder, less than 0.3 wt. % impurities and a balance being tungsten.Type: ApplicationFiled: September 10, 2012Publication date: March 13, 2014Applicant: Kennametal Inc.Inventors: Elizabeth Ann Binky Sargent, Sudhir Brahmandam, Christopher D. Dunn, Irene Spitsberg, Michael James Verti, William Roy Huston
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Publication number: 20130337221Abstract: A coated member, as well as a method for making the coated member, adapted for movement relative to a surface wherein a clearance distance between the coated member and the surface exists in a critical region of the coated member. The coated member has a finished size in the critical region. The substrate has an undersized substrate region of a minimum undersizing depth, which is equal to about seventy-five percent of the clearance distance. The undersized substrate region corresponds to the critical region of the coated member. A finished coating scheme is on the undersized substrate region wherein the finished coating scheme is the result of an oversized coating scheme being finished to form the finished coating scheme wherein the coated member is of the finished size in the critical region.Type: ApplicationFiled: June 18, 2012Publication date: December 19, 2013Applicant: Kennametal Inc.Inventors: Sudhir Brahmandam, Dave Siddle, Irene Spitsberg
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Publication number: 20130336776Abstract: A closed impeller has a base cover, which has a base interior surface, and a second cover. A vane, which has an inlet distal end and an outlet distal end, is on the base interior surface. The vane has low and high pressure side surfaces wherein they have a low or high pressure midpoint, respectively. A hard coating is on the low and high pressure side surfaces. The hard coating has a minimum low and high pressure coating thickness at their respective midpoints. The minimum low, as well as high, pressure coating thickness ranging between about 0.085 and about 0.8 of either one of the maximum outlet coating thickness at the outlet distal end or the maximum inlet coating thickness at the inlet distal end, respectively.Type: ApplicationFiled: June 18, 2012Publication date: December 19, 2013Applicant: Kennametal Inc.Inventors: Dave Siddle, Sudhir Brahmandam, Irene Spitsberg
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Publication number: 20130078331Abstract: A pelletizing extrusion die comprising a die body contains a plurality of extrusion holes. Each of the extrusion holes is defined by a defining surface of the die body wherein at least a portion of the defining surface has a low-friction coating deposited thereon. A method for applying the low-friction coating to the defining surface wherein the applying step occurs at a temperature equal to less than about 520° C.Type: ApplicationFiled: June 18, 2012Publication date: March 28, 2013Applicant: Kennametal Inc.Inventors: Sudhir Brahmandam, Dave Siddle, Irene Spitsberg
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Publication number: 20130078328Abstract: Pelletizing ring extrusion dies comprising a die body having a plurality of holes, wherein each hole has surface at least partially coated with a low-friction coating. The low-friction coatings reduce surface temperatures during operation of the dies, which reduces volatilization and inconsistent flow of the material being extruded. The pelletizing ring extrusion dies possess improved tool life due to the low-friction coatings.Type: ApplicationFiled: September 27, 2011Publication date: March 28, 2013Applicant: Kennametal, Inc.Inventors: Sudhir Brahmandam, David Richard Siddle, Irene Spitsberg
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Patent number: 8173561Abstract: A tungsten carbide material for use in precision glass molding applications having 6.06-6.13 wt. % carbon, 0.20-0.55 wt. % grain growth inhibitor, less than 0.25 wt. % binder, less than 0.6% wt. % impurities, and balance being tungsten. The tungsten carbide material has a nominal grain size of less than 0.5 microns.Type: GrantFiled: November 10, 2009Date of Patent: May 8, 2012Assignee: Kennametal Inc.Inventors: Elizabeth Ann Binky Peterson, William Roy Huston, Irene Spitsberg, Michael James Verti, Sudhir Brahmandam
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Publication number: 20120003425Abstract: A system for precision glass molding comprising a substrate and a coating. The substrate has less than 1.2 wt. % minor constituents. The coating comprises TiAlxNy, wherein x is about 0.7-1.5 and y is about 2.0-3.0. The coating is applied on at least a portion of the substrate.Type: ApplicationFiled: June 30, 2010Publication date: January 5, 2012Applicant: Kennametal Inc.Inventors: Sudhir Brahmandam, Irene Spitsberg, Michael James Verti
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Publication number: 20110111945Abstract: A tungsten carbide material for use in precision glass molding applications having 6.06-6.13 wt. % carbon, 0.20-0.55 wt. % grain growth inhibitor, less than 0.25 wt. % binder, less than 0.6% wt. % impurities, and balance being tungsten. The tungsten carbide material has a nominal grain size of less than 0.5 microns.Type: ApplicationFiled: November 10, 2009Publication date: May 12, 2011Applicant: Kennametal Inc.Inventors: Elizabeth Ann Binky Peterson, William Roy Huston, Irene Spitsberg, Michael James Verti, Sudhir Brahmandam
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Publication number: 20110016946Abstract: A coated forming tool including a tool component and a wear resistant coating on at least a portion of the tool component. The wear resistant coating includes a bottom coating layer and a top coating layer. The top coating layer has a thickness from about 1 ?m to about 12 ?m and the coating has a thickness ratio of the bottom coating layer thickness to the top coating layer thickness from about 0.5 to about 5.Type: ApplicationFiled: July 21, 2009Publication date: January 27, 2011Inventors: Sudhir Brahmandam, David R. Siddle, Peter R. Leicht, Irene Spitsberg