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).
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Publication number: 20110162434Abstract: 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: ApplicationFiled: September 29, 2008Publication date: July 7, 2011Inventor: Shalabh Kumar Rastogi
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Patent number: 7670148Abstract: 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: GrantFiled: January 21, 2007Date of Patent: March 2, 2010Assignee: Shaltech, Inc.Inventors: Shalabh Kumar, Larry Freiberg
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Patent number: 7565459Abstract: 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: GrantFiled: January 22, 2007Date of Patent: July 21, 2009Inventor: Shalabh Kumar
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Publication number: 20070183169Abstract: 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: ApplicationFiled: January 22, 2007Publication date: August 9, 2007Inventor: Shalabh Kumar
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Publication number: 20070173079Abstract: 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: ApplicationFiled: January 21, 2007Publication date: July 26, 2007Inventors: Shalabh Kumar, Larry Freiberg
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Publication number: 20070173960Abstract: 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: ApplicationFiled: January 22, 2007Publication date: July 26, 2007Inventor: Shalabh Kumar
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Publication number: 20070171158Abstract: A low power LED based marquee is described. The LEDs are powered by 3.3 VDC.Type: ApplicationFiled: January 22, 2007Publication date: July 26, 2007Inventor: Shalabh Kumar
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Publication number: 20070173961Abstract: 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: ApplicationFiled: January 22, 2007Publication date: July 26, 2007Inventor: Shalabh Kumar
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Patent number: 5038305Abstract: 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: GrantFiled: February 27, 1989Date of Patent: August 6, 1991Assignee: Microfast Controls Corp.Inventors: Shalabh Kumar, Vince Chow
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Patent number: 4954763Abstract: 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: GrantFiled: January 31, 1989Date of Patent: September 4, 1990Assignee: Micro Fast Controls, Inc.Inventors: Shalabh Kumar, Duane Edgar
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Patent number: 4941081Abstract: 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: GrantFiled: December 31, 1987Date of Patent: July 10, 1990Assignee: Microfast Controls Corp.Inventors: Shalabh Kumar, Duane S. Edgar
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Patent number: 4839789Abstract: 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: GrantFiled: May 4, 1987Date of Patent: June 13, 1989Assignee: Microfast Controls Corp.Inventors: Shalabh Kumar, Duane Edgar
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Patent number: 4835676Abstract: 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: GrantFiled: March 9, 1988Date of Patent: May 30, 1989Assignee: Autotech CorporationInventors: Shalabh Kumar, Duane Edgar
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Patent number: 4810917Abstract: 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: GrantFiled: February 22, 1988Date of Patent: March 7, 1989Assignee: Autotech CorporationInventors: Shalabh Kumar, Keith R. Johnson
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Patent number: 4744022Abstract: 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: GrantFiled: June 3, 1985Date of Patent: May 10, 1988Assignee: Autotech CorporationInventors: Shalabh Kumar, Duane Edgar
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Patent number: 4728834Abstract: 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: GrantFiled: May 28, 1985Date of Patent: March 1, 1988Assignee: Autotech CorporationInventors: Shalabh Kumar, Keith R. Johnson