Patents by Inventor Shalabh Kumar

Shalabh Kumar 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).

  • Publication number: 20110162434
    Abstract: The present invention relates to a combination calibration/verification gauge for calibrating measuring instruments with a measurement precision. More particularly, the present invention relates to a multi-function, multi-dimension length standard and works as a working standard to compare various measuring instruments on the shop floor.
    Type: Application
    Filed: September 29, 2008
    Publication date: July 7, 2011
    Inventor: Shalabh Kumar Rastogi
  • Patent number: 7670148
    Abstract: This invention describes an I/O module for a modular automation controller. The controller has a main assembly including a motherboard. The I/O modules plug into the motherboard. The modules are parallel to the motherboard allowing use of surface mount LED indicators reducing manufacturing costs. The modules use a plastic cover which retains the module's PCA as well latches the module to the motherboard, making the automation controller less expensive.
    Type: Grant
    Filed: January 21, 2007
    Date of Patent: March 2, 2010
    Assignee: Shaltech, Inc.
    Inventors: Shalabh Kumar, Larry Freiberg
  • Patent number: 7565459
    Abstract: The invention describes combination I/O modules for automation. Various combinations of inputs and output with different electrical interfaces are offered providing greater flexibility in controller hardware selection.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: July 21, 2009
    Inventor: Shalabh Kumar
  • Publication number: 20070183169
    Abstract: The invention describes combination I/O modules for automation. Various combinations of inputs and output with different electrical interfaces are offered providing greater flexibility in controller hardware selection.
    Type: Application
    Filed: January 22, 2007
    Publication date: August 9, 2007
    Inventor: Shalabh Kumar
  • Publication number: 20070173079
    Abstract: This invention describes an I/O module for a modular automation controller. The controller has a main assembly including a motherboard. The I/O modules plug into the motherboard. The modules are parallel to the motherboard allowing use of surface mount LED indicators reducing manufacturing costs. The modules use a plastic cover which retains the module's PCA as well latches the module to the motherboard, making the automation controller less expensive.
    Type: Application
    Filed: January 21, 2007
    Publication date: July 26, 2007
    Inventors: Shalabh Kumar, Larry Freiberg
  • Publication number: 20070173960
    Abstract: A compact lower cost programmable logic controller with modular I/O is described. SPI bus is used for accessing multi-byte data from I/O modules, while 8 bit data bus is used to access single byte data from I/O modules. Compact I/O modules with use with the PLC are described. The include short circuit proof DC output modules, Relay output with built-in electromagnetic shield, analog modules with laser trimmed resistors, and high speed counter modules.
    Type: Application
    Filed: January 22, 2007
    Publication date: July 26, 2007
    Inventor: Shalabh Kumar
  • Publication number: 20070171158
    Abstract: A low power LED based marquee is described. The LEDs are powered by 3.3 VDC.
    Type: Application
    Filed: January 22, 2007
    Publication date: July 26, 2007
    Inventor: Shalabh Kumar
  • Publication number: 20070173961
    Abstract: Automation Controller with integrated HMI and Modular I/O is described. The controller offers advantage of being a single physical unit over traditional controllers, while offering the flexibility of modular I/O.
    Type: Application
    Filed: January 22, 2007
    Publication date: July 26, 2007
    Inventor: Shalabh Kumar
  • Patent number: 5038305
    Abstract: The linear transducer input module is one of several modules mounted in a rack to form a programmable controller. The module's function is to provide position data from an externally located ultrasonic magnetostrictive linear transducer which is connected to some moving part of a machine to the programmable controller's processor module. The ultrasonic magnetostrictive linear transducer digital decoding circuitry (receiving circuitry) is located in the input module on the programmable controller input/output rack. A synchronizing circuit is provided in the module to synchronize the programmable controller's input fetch signals which input module circuitry. A user operable digital offset device is provided in the module for enabling an offset to be added to the ultrasonic magnetostrictive linear transducer position data by a user-selectable amount while accommodating different transducer lengths.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: August 6, 1991
    Assignee: Microfast Controls Corp.
    Inventors: Shalabh Kumar, Vince Chow
  • Patent number: 4954763
    Abstract: The resolver input module for use in programmable controller systems is one of several modules mounted in a rack to form a programmable controller. The module's function is to provide position data from an externally located resolver which is connected to a machine's shaft to the programmable controller's processor module. This is accomplished by moving the resolver analog-to-digital conversion circuitry from an external module location to the programmable controller input/output rack and coupling this circuitry to circuits which synchronize the programmable controller's input fetch signals. Additionally, a user operable entry mechanism for digitally offsetting the resolver position by a user-selectable amount while accommodating different scale factors is provided. Synchronization and alignment circuitry are provided for synchronizing and aligning data to compensate for different resolver gear ratios in coarse-fine geared resolver decoding circuitry.
    Type: Grant
    Filed: January 31, 1989
    Date of Patent: September 4, 1990
    Assignee: Micro Fast Controls, Inc.
    Inventors: Shalabh Kumar, Duane Edgar
  • Patent number: 4941081
    Abstract: The method and device are used to control outputs to a plurality of output devices relative to inputs and for synchronizing the updating of selected outputs with the occurrence of an external event. An interrupt signal is derived from an external event at one or more input devices and supplied to a micro-computer. A user ladder program is provided in the device for controlling the outputs and one or more interrupt zones are provided in the ladder program and are immediately responsive to the interrupt signal for instantaneously updating selected outputs. Each interrupt zone includes enabling means, an opening boundary, addresses of inputs to be fetched, a body of instructions and a closing boundary.
    Type: Grant
    Filed: December 31, 1987
    Date of Patent: July 10, 1990
    Assignee: Microfast Controls Corp.
    Inventors: Shalabh Kumar, Duane S. Edgar
  • Patent number: 4839789
    Abstract: The programmable control device is arranged to accept numerical data information from a transducer associated with a particular machine. Selected outputs are stored in addressable tables, including an I/O address table, relative to outputs which are of special interest in a program and which are to be supplied to output devices. The programmable control device, utilizing a micro-computer, responds at high speed to the numerical data and status information from the input devices, selects or calculates the appropriate output, generates visual displays, and periodically couples the addressable tables to the output devices.The control device only requires a scan time of approximately 100 to 500 microseconds and acheives the high speed by processing input data, storing selected output data in addressable tables, and periodically coupling the addressable tables to the output devices.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: June 13, 1989
    Assignee: Microfast Controls Corp.
    Inventors: Shalabh Kumar, Duane Edgar
  • Patent number: 4835676
    Abstract: The programmable control apparatus includes an absolute position transducer capable of being mechanically coupled to a machine and electrical circuitry for generating signals indicative of and related to the machine position, a programming unit including a microcomputer, visual display device, program input circuitry, one or more programmable memory position output devices (PMPODs) each of which includes a non-volatile memory, latching circuitry and output interface circuitry, and terminal blocks for interconnection of the absolute position transducer to the programming unit or the PMPOD.
    Type: Grant
    Filed: March 9, 1988
    Date of Patent: May 30, 1989
    Assignee: Autotech Corporation
    Inventors: Shalabh Kumar, Duane Edgar
  • Patent number: 4810917
    Abstract: The method of forming a compact resolver/encoder assembly which is impervious to moisture, comprises several steps. First a number of electronic components of the resolver/encoder are mounted on a flexible printed circuit board. The circuit board is then folded into a generally cylindrical envelope and placed in a generally cylindrical container having a closed bottom end and an upper open end. The folded circuit board tens to unfold against the inner surface of the cylindrical wall of said container. Then a form made of stiff but flexible paperboard is inserted within the cylindrical envelope and tends to unfold to take on a tear drop cross section. Next a heat insulating potting compound is inserted into the generally annular space in the container between the form and the cylindrical wall of the container where the folded, printed circuit board is located.
    Type: Grant
    Filed: February 22, 1988
    Date of Patent: March 7, 1989
    Assignee: Autotech Corporation
    Inventors: Shalabh Kumar, Keith R. Johnson
  • Patent number: 4744022
    Abstract: The programmable control apparatus includes an absolute position transducer capable of being mechanically coupled to a machine and electrical circuitry for generating signals indicative of and related to the machine position, a programming unit including a microcomputer, visual display device, program input circuitry, one or more programmable memory position output devices (PMPODs) each of which includes a non-volatile memory, latching circuitry and output interface circuitry, and terminal blocks for interconnection of the absolute position transducer to the programming unit or the PMPOD.
    Type: Grant
    Filed: June 3, 1985
    Date of Patent: May 10, 1988
    Assignee: Autotech Corporation
    Inventors: Shalabh Kumar, Duane Edgar
  • Patent number: 4728834
    Abstract: The compact digital resolver/encoder assembly comprises a resolver and a flexible printed circuit board having a number of electronic components for decoding the resolver mounted on the flexible printed circuit board. A generally cylindrical container is provided having a cylindrical wall, a closed end and an open end. The circuit board is folded into a generally cylindrical shape and received in the container separate from the resolver. The circuit board is insulated from the container by an electrical insulating potting compound situated in the container and surrounding the circuit board. The resolver is received in the container and is spaced a predetermined distance from the encapsulated circuit board. Preferably a voltage regulator is mounted to an inside wall of the container and electrically coupled to the circuit board.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: March 1, 1988
    Assignee: Autotech Corporation
    Inventors: Shalabh Kumar, Keith R. Johnson