Patents Represented by Attorney Merck, Blackmon & Voorhees, LLC

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  • Patriot retrievable production packer
    Patent number: 7591305
    Abstract: The present invention provides a tool capable of being set and released. A novel arrangement of a push sleeve in the spring body eliminates several shear pins while an internal J slot formed directly on the mandrel significantly reduces the size of the lower drag body and thus the length of the tool. An internal pathway between the inner mandrel and the mandrel body selectively provide increase flow through the packer tool to facilitate running in of the tool.
    Type: Grant
    Filed: December 15, 2005
    Date of Patent: September 22, 2009
    Assignee: Tejas Complete Solutions, LP
    Inventors: Robert L. Brookey, Michael T. Sommers
  • System and method for determining the data rate of a digital data stream
    Patent number: 7061979
    Abstract: A system and method for determining a minimum pulse width for a digital data stream is described herein. The minimum pulse width is used to infer the data rate for the digital data stream. A measuring cell is used to measure the pulse widths by utilizing RC time constants. The measuring cell comprises a capacitor whose voltage is related to the pulse width. This voltage is then transferred by the measuring cell to a measurement node which determines the minimum pulse width of all the transferred voltages for the plurality of pulses.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: June 13, 2006
    Assignee: CIENA Corporation
    Inventor: Hon Wah Chin