Vinod K Chopra

US Patent:

7376478, May 20, 2008

Filed:

Mar 21, 2006

Appl. No.:

11/385617

Inventors:

Vinod Kumar Chopra - Lake Barrington IL, US

Assignee:

Siemens Medical Solutions USA, Inc. - Malvern PA

International Classification:

G06F 19/00
G06F 11/30

US Classification:

700 97, 700106, 702182

Abstract:

A method to achieve perceived reliability for repairable systems including goal setting of different phases of the product life cycle. The method includes consideration of a plurality of product life cycle phases to determine a plurality of failure rate multipliers which are transformed to mean time between failures multipliers and normalized. Using these computed mean times between failures multipliers and a chosen level of customer use, the box-of-parts required mean time between failures level can be calculated. Also, the required mean time between failures for design, manufacturing, infant mortality, and service phase of product life cycle can be computed.

US Patent:

50673793, Nov 26, 1991

Filed:

Mar 20, 1989

Appl. No.:

7/325435

Inventors:

John D. Butler - Germantown WI
Vinod K. Chopra - Brookfield WI

Assignee:

Mechtrix Corporation - Menomonee Falls WI

International Classification:

H02G 112

US Classification:

83 13

Abstract:

An electro/mechanical feedback system and method for displaying the positional and sizing information relative to the hole size formed by closed stripping blades of a wire stripping machine. The feedback system includes a pair of rotary optical encoders that are tied to the respective blade tool holders via adjusting screws. The adjusting screws provide infinite adjustment resolution. Turning the adjusting screws opens or closes the blades. The encoders convert the adjusting screw rotational information into blade translatory information, which is displayed. The displayed information represents positional information of each of the blades as well as the actual diameter of the cutting hole formed by the closed blades at a true zero position. The adjusting screw includes a torque head that limits adjusting screw torque to a predetermined amount. The present invention includes a positive stop used as a home position for each blade.

US Patent:

42531543, Feb 24, 1981

Filed:

Jan 11, 1979

Appl. No.:

6/002621

Inventors:

John C. Russ - Palatine IL
Robert Carey - Asten, NL
Vinod K. Chopra - Vernon Hills IL

Assignee:

North American Philips Corporation - New York NY

International Classification:

G06F 1520

US Classification:

364527

Abstract:

An improved method and apparatus for obtaining and displaying SEM X-ray line scans and maps for data collection and presentation in energy dispersive X-ray analysis of materials, having ratemeter circuitry providing a voltage output proportional to the intensity of detected pulses in an energy window and an absolute digital representation of the intensity count rate both corrected for dead time, input multiplexing and multiple output buffering of the ratemeter to accomodate multiple channel signals, a feedback loop from said ratemeter to provide display image enhancement, inhibit circuitry to eliminate background signals, signal averging circuitry to permit storage of multiple line scan of multiple single channel analyser outputs in a multi-channel analyser for later processing and display circuitry for displaying stored line scans.

US Patent:

49875833, Jan 22, 1991

Filed:

Apr 25, 1989

Appl. No.:

7/343462

Inventors:

Frank C. Travanty - Waukesha WI
Philip M. Allen - Oconomowoc WI
Vinod K. Chopra - Brookfield WI

Assignee:

General Electric Company - Milwaukee WI

International Classification:

H05G 108

US Classification:

378 91

Abstract:

An X-ray apparatus has motors for moving its components in different directions. Sensors are provided to detect a collision between a motor driven component and an object, such as a patient being examined. In response to a collision being detected, a normal motor power supply is disconnected from the motor and another power supply is connected to the motor to move the component in the reverse direction. A safeguard is incorporated to insure that both power supplies cannot be coupled to the motor at the same time. For components which can strike a patient when moving in either of two directions, different collision sensors are provided for each direction. For this configuration, a mechanism also is provided to inhibit the connection of the other power supply when collisions are simultaneously detected each direction of component movement.