Vikram Madineni

US Patent:

20080315795, Dec 25, 2008

Filed:

Jun 25, 2008

Appl. No.:

12/145824

Inventors:

Vikram Madineni - Somerville NJ, US
Jason Bartoszek - Allentown PA, US

Assignee:

Ingersoll-Rand Company - Montvale NJ

International Classification:

H05B 41/36

US Classification:

315307

Abstract:

A light emitting apparatus for regulating a current output of an LED at predetermined value with a power source having a wide variety of voltages and chemistries is described. A light emitting diode is electrically coupled to the voltage source. A pulse width modulation controller controls a duty cycle of the voltage applied. A resistor electrically coupled between the voltage source and the light emitting diode is used to regulate output current for the LED. An amplification circuit is electrically coupled to the resistor and the pulse width modulation controller for supplying a feedback voltage to the pulse width modulation controller that is higher than a voltage measured across the resistor.

US Patent:

20140008090, Jan 9, 2014

Filed:

Sep 10, 2013

Appl. No.:

14/023057

Inventors:

Randolph Robert Ruetsch - Branchburg NJ, US
Vikram Madineni - Somerset NJ, US

Assignee:

Ingersoll-Rand Company - Davidson NC

International Classification:

B25F 5/02

US Classification:

173170, 29428

Abstract:

The housing assembly has a grip portion having a heightwise axis. The housing assembly includes a housing member having parallel upper and lower housing guide features spaced apart along the heightwise axis. The trigger member is mounted in the housing assembly to slide along a slide axis transverse to the heightwise axis. The trigger member includes parallel upper and lower trigger guide features spaced apart along the heightwise axis and mated with the upper and lower housing guide features. The upper and lower housing guide features and the upper and lower trigger guide features cooperate to limit the trigger member to a linear slide path relative to the housing assembly and inhibit cocking of the trigger member about a lateral axis transverse to each of the heightwise axis and the slide axis.

US Patent:

20160354905, Dec 8, 2016

Filed:

Jun 3, 2016

Appl. No.:

15/172501

Inventors:

- DAVIDSON NC, US
PINHUA XIE - KENDALL PARK NJ, US
JASON CHRISTOPHER BARTOSZEK - BETHLEHEM PA, US
JOSHUA ODELL JOHNSON - ALLENTOWN PA, US
WARREN A. SEITH - BETHLEHEM PA, US
VIKRAM MADINENI - SOMERSET NJ, US
TIMOTHY RICHARD COOPER - TITUSVILLE NJ, US

International Classification:

B25B 21/00
H02K 7/14
H02P 23/00
B25B 21/02

Abstract:

A hand-held power tool is provided that includes a housing assembly, an output spindle, and a motor endbell. The housing assembly supports an electric motor having a rotor configured to rotate when the electric motor is supplied with power. The output spindle protrudes from an output end of the housing assembly, and is functionally coupled to the rotor such that the output spindle rotates in response to a rotation of the rotor. The motor endbell is located on the housing assembly adjacent the electric motor and opposite the output spindle. An illustrative controller is operable to determine phases of a fastening operation in which the hand-held power tool is operating. The phases of the fastening operation of the hand-held power tool include two phases including: (1) a continuous run phase and (2) an impacting phase.

US Patent:

20160354912, Dec 8, 2016

Filed:

Jun 3, 2016

Appl. No.:

15/172193

Inventors:

- DAVIDSON NC, US
VIKRAM MADINENI - SOMERSET NJ, US
Joshua Odell Johnson - Allentown PA, US
Sean C. Ely - Flemington NJ, US
Douglas Fornell Leavitt - Bethlehem PA, US

International Classification:

B25F 5/00
H02K 7/14
H02P 29/02
B25F 5/02

Abstract:

A hand-held power tool is provided that includes a housing assembly to support a motor. An output spindle protrudes from an output end of the housing assembly such that the output spindle rotates in response to a rotation of the motor. A user interface is located at the housing assembly opposite the output spindle. The user interface is configured to select one of a plurality of modes of operation of the hand-held power tool to regulate power supplied to the motor.