Patents Assigned to Fedd Systems, Inc.
  • Fugitive emissions detection system and components thereof
    Patent number: 6722185
    Abstract: The present invention relates to detection and alarm systems for predicting and detecting the location of spills, leaks, emissions, and/or pollution sources, i.e., unwanted fluid (liquid/gas) flow/escape, at refineries, e.g., oil and gas refineries, and plants, e.g., petrochemical, chemical, pharmaceutical, and food processing plants, and avoiding said unwanted flow/escape. According to one embodiment, said system comprises at least one detector, at least one battery powered radio frequency transmitter, preferably, according to one embodiment, a 900 megahertz spread spectrum transmitter, and a central processing location which, according to one embodiment, is preferably capable of handling up to 3000 points in a single cell site.
    Type: Grant
    Filed: February 18, 2003
    Date of Patent: April 20, 2004
    Assignee: Fedd Systems Inc.
    Inventors: Rick A. Lawson, Michael S. Kelly
  • Fugitive emissions detection system and components thereof
    Patent number: 6530259
    Abstract: The present invention relates to detection and alarm systems for predicting and detecting the location of spills, leaks, emissions, and/or pollution sources, i.e., unwanted fluid (liquid/gas) flow/escape, at refineries, e.g., oil and gas refineries, and plants, e.g., petrochemical, chemical, pharmaceutical, and food processing plants, and avoiding said unwanted flow/escape. According to one embodiment, said system comprises at least one detector, at least one battery powered radio frequency transmitter, preferably, according to one embodiment, a 900 megahertz spread spectrum transmitter, and a central processing location which, according to one embodiment is preferably capable of handling up to 3000 points in a single cell site.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: March 11, 2003
    Assignee: Fedd Systems, Inc.
    Inventors: Michael S. Kelly, Rick A. Lawson
  • Fugitive emissions detection systems and components thereof
    Patent number: 5979227
    Abstract: A system for detecting fugitive emissions including emissions from valves and bolted flange connections. The system may include: (1) enclosures, for example, for valves and pipe flange connections, and (2) a detector in communication with said enclosures.
    Type: Grant
    Filed: August 13, 1996
    Date of Patent: November 9, 1999
    Assignee: Fedd Systems, Inc.
    Inventors: Rick A. Lawson, Michael S. Kelly