Rajesh P Das

US Patent:

20030106723, Jun 12, 2003

Filed:

Dec 6, 2002

Appl. No.:

10/313777

Inventors:

Rajeev Thakur - Lake Orion MI, US
Alexander Golshteyn - Southfield MI, US
Russ Watts - Ann Arbor MI, US
Darren Lee - Canton MI, US
Rajesh Das - Clarkston MI, US

International Classification:

G01G019/52

US Classification:

177/144000, 177/154000, 177/229000, 073/862632, 180/273000

Abstract:

Automotive load cells having centralized, multi-axis, loose tolerance overload/limit stops provide improved strain gauge response. The modular, integrated stop assemblies magnify sensor substrate deflection by use of opposed concave (Belleville) springs are used in direct contact with the substrate to accommodate Z axis deflection and Mx/My moment angular rotation. A flanged guide member on the load stud permits a wide range of geometries. The substrate is thickened around the load stud hole and the outboard support bolt holes. Hollow rivets assist in design modularity. Strain gauges are placed at the yield zones symmetrically with respect to the X axis. The substrate hole Mx/My gap is larger than the stop bracket hole to insure a positive stop for Mx/My moments prior to yield. The inventive multi-axis stop assembly is used in any type load cell, including rectangular, thinned, notched, necked/dogbone, or cantilever substrates with any strain gauge layout configuration.

US Patent:

20120081866, Apr 5, 2012

Filed:

Oct 1, 2010

Appl. No.:

12/896575

Inventors:

Paul Wickett - Northville MI, US
Bernd Eckert - Baden-Wuerttemberg, DE
Rajesh Das - Canton MI, US

Assignee:

ROBERT BOSCH GMBH - Stuttgart

International Classification:

H05K 7/00
H05K 1/16

US Classification:

361760, 174260

Abstract:

An apparatus includes, in combination, an electrical component and a bracket. The electrical component has a first end configured to electrically connect to a circuit board. The electrical component defines an axis and has a width measured in a direction transverse to the axis. The bracket has a body defining a bore shaped to receive the electrical component. The body further includes a break in communication with the bore to allow expansion of the bore. In an at-rest state of the bracket, the bore has a bore width smaller than the width of the electrical component, and when the electrical component is received in the bore, the bracket is elastically deformed such that the electrical component is clamped in the transverse direction solely by the residual stress within the bracket without any additional clamp or fastener.

US Patent:

20130066514, Mar 14, 2013

Filed:

Sep 14, 2011

Appl. No.:

13/232816

Inventors:

Rajesh Das - Canton MI, US

Assignee:

ROBERT BOSCH GMBH - Stuttgart

International Classification:

G06F 17/00

US Classification:

701 315

Abstract:

A diagnostic connector module for a vehicle includes an electronic communication module and a housing enclosing the electronic communication module. The housing has integrated connectors electrically connected to the electronic communication module. The integrated connectors include a diagnostic service connector for connection with an external diagnostic scan tool and a vehicle bus connector connectable to a vehicle bus. The diagnostic service connector has a plurality of female pin-receptors electrically connected to the electronic communication module, and the vehicle bus connector has a plurality of terminals electrically connected to the electronic communication module. A vehicle diagnostic system including the diagnostic connector module is also provided.

US Patent:

20170181257, Jun 22, 2017

Filed:

Jun 16, 2014

Appl. No.:

15/127691

Inventors:

Cyrous Rostamzadeh - Northville Township MI, US
Shijie Wang - Windsor, CA
Rajesh Das - Canton MI, US
Steven Gladstein - Farmington Hills MI, US
Timothy Foster - Saline MI, US
Allen Marecki - Plymouth MI, US
Sanjai Master - Canton MI, US

International Classification:

H05B 41/28
H05B 41/24
H02M 1/12
H02M 1/42
H02M 7/00
H05B 37/02
H02M 1/44

Abstract:

A connected light node (CLN) induction light ballast module for powering an induction lamp includes a printed circuit board having components mounted thereon and an earth ground region electrically isolated from a PCB ground region. A heat sink is disposed on a lower layer of the printed circuit board and electrically connected to the earth ground region, wherein a parasitic capacitance occurs between the printed circuit board ground region and the heat sink. A capacitive shield sandwiched by a lower insulating pad and an upper insulating pad is electrically isolated from the heat sink supporting the shield. A damping network electrically connects the capacitive shield to the PCB ground region. Switch-mode power converters are mounted above the upper insulating pad and the shield. The damping network suppresses noise by a parasitic capacitance between the PCB ground region and the heat sink during high frequency power converter operation.

US Patent:

20160234410, Aug 11, 2016

Filed:

Feb 5, 2015

Appl. No.:

14/615225

Inventors:

- Stuttgart, DE
Rajesh Das - Canton MI, US

International Classification:

H04N 5/225
G02B 7/02

Abstract:

A method for assembling a camera includes providing a circuit board with a first surface defining a plane and an aperture extending entirely through the circuit board. An image sensor is fixed on the first surface. A lens holder is provided with a lens barrel defining a central axis and supporting a lens in a fixed position relative to the lens barrel. A post extends outward from the lens barrel in a first direction. The circuit board and the lens holder are oriented such that the plane defined by a first surface of the circuit board is perpendicular to the central axis. The circuit board and the lens holder are axially joined so that the post is received by the aperture. A final alignment of the image sensor relative to the central axis and the lens is non-adjustably fixed upon sliding the post through the aperture.