Madhav S Puppala, Age 582313 Mohawk Ln, Glenview, IL 60026

8459659, Jun 11, 2013

Sep 5, 2008

12/205654

Madhav S. Puppala - Lisle IL, US
Thomas M. Grobbel - Ortonville MI, US

Illinois Tool Works Inc. - Glenview IL

B23B 31/02

279125, 279106, 279157

A system, in certain embodiments, includes a cutting tool, a drive, and a chuck rotatable by the drive. The chuck includes a body having a core disposed in a shell, wherein the shell is made of a metal and the core is made of a composite material. The chuck also includes a set of jaws coupled to the body, wherein the jaws are configured to hold a work piece adjacent the cutting tool.

2006017, Aug 10, 2006

Jan 25, 2005

11/042389

Cheryl Panasik - Elburn IL, US
Yongping Gong - Glenview IL, US
Jeffrey Stupar - West Dundee IL, US
Madhav Puppala - Lisle IL, US
Owen McGarel - Naperville IL, US

E04B 9/00
E06B 3/54
E04C 5/00

052478000, 052543000, 052713000

Thermal breaker or thermal barrier structures are disclosed for use in connection with roof decking assemblies wherein the thermal breaker or thermal barrier structures effectively prevent the respective transmission of heating gradients from the interior or exterior building environments to the exterior or interior building environments by thermal conductivity so as to render buildings more energy efficient.

2011000, Jan 13, 2011

Jul 7, 2010

12/831887

Madhav Puppala - Lisle IL, US
Christof Rauen - Mettmann, DE
Erwin Bohler - Bettwiesen, CH
Bodo Kaleja - Ratingen, DE

ILLINOIS TOOL WORKS INC. - Glenview IL

B23B 31/10
B23Q 17/00

279126, 279134

A rotatable chuck for securing a workpiece in a machine includes a base element having a center and a plurality of jaw elements movable relative to the center. The jaw elements are movable to clamp the workpiece. The jaw elements exert a measurable clamping force on the workpiece. The clamping force exerted on the workpiece is measured and the jaw elements are moved relative to the center to vary the clamping force exerted on the workpiece. A comparator compares the measured clamping force to a predetermined clamping force and the jaw elements are moved, as the chuck is rotating, to adjust the clamping force on the workpiece relative to the predetermined clamping force.

2012000, Jan 5, 2012

Feb 11, 2010

13/255655

Ghaffar Kazkaz - Rolling Meadows IL, US
Madhav Puppala - Lisle IL, US
Didier Richard - Cluses, FR

ILLINOIS TOOL WORKS INC. - Glenview IL

F16H 1/16
B23P 15/14
F16H 55/06
F16H 55/02

74416, 74458, 2989331

A hybrid spiroid and worm gear is formed as a gear body having an axis of rotation. The gear body has a plurality of spiroid gear teeth formed in opposing surfaces of the body formed generally radially relative to the axis of rotation. The gear body further has a plurality of worm gear teeth formed in a hub portion, between, separate and apart from the spiroid teeth. The worm gear teeth are formed generally longitudinally relative to the axis of rotation. A method for making the hybrid spiroid and worm gear is also disclosed.

2013007, Mar 28, 2013

Aug 3, 2011

13/702722

Madhav S. Puppala - Glenview IL, US
Ghaffar Kazkaz - Glenview IL, US
Thomas W. Moeller - Glenview IL, US
Bradley G. Carman - Glenview IL, US
John R. Wolfe - Glenview IL, US
Frank Otte - Glenview IL, US

ILLINOIS TOOL WORKS INC. - Glenview IL

F16D 59/00

188 67

A motion control system configured to control motion of a load object independent of the load object, includes a main housing having an internal nut secured with respect to a longitudinal axis of the main housing, and a threaded helical gear movably secured within the main housing. The threaded helical gear includes an end configured to be operatively secured to the load object. The helical gear threadably engages the internal nut. One or both of a first frictional force between the helical gear and the nut or a second frictional force between the nut and at least a portion of the main housing provides a resistive force that controls motion of the load object.