Patents Assigned to AST Services, LLC
  • Hydraulic and electric umbilical connection for an inspection vehicle for inspecting a liquid-filled tank
    Patent number: 6838614
    Abstract: An umbilical connection for use in a hazardous environment like a floating roof storage tank has one or more hydraulic hoses, one or more electrical cables or a combination thereof. Each hydraulic hose has a static dissipative and abrasion resistant covering. Each electrical cable has an abrasion resistant coating. The hoses and cables are bundled and wrapped in a static dissipative and abrasion resistant open mesh sheath or an overbraid to form the umbilical connection.
    Type: Grant
    Filed: September 10, 2002
    Date of Patent: January 4, 2005
    Assignee: AST Services, LLC
    Inventors: Eugene B. Silverman, David L. Gilbert, Richard Skallos, Joel L. Lautenschlager