Patents Assigned to R & R Precision Corp.
  • Coaxial piping systems
    Patent number: 5803127
    Abstract: In a coaxial piping system for the transport of toxic and hazardous gases having an inner conduit wherein hazardous gases are transported therethrough and having a spacer that separates the inner conduit from an outer conduit, so that purging gases can flow between the conduits.
    Type: Grant
    Filed: November 27, 1996
    Date of Patent: September 8, 1998
    Assignee: R & R Precision Corp.
    Inventor: Robert L. Rains