Patents Assigned to Pioneer Refining Services, Inc.
  • Patent number: 5112390
    Abstract: Equipment and methods for an efficient, low cost silver recovery apparatus for recovering silver from a silver-containing solution. The apparatus comprises a replaceable silver recovery subassembly, stackable container, lid, lock ring which is locked or sealed to make the container tamperproof, and an L-shaped connector by which an anodic silver reducing, hollow core metal coil in the replacement subassembly is releasibly connected to an effluent port of the recovery apparatus. The silver recovery subassembly comprises a mesh bag which is a carrier of the metal coil and containment filter for influent sludge and particulates produced during silver reduction. The mesh bag, with support by the container and lid provides a capturing net for incoming sludge as well as particulates which form during the silver reduction process.
    Type: Grant
    Filed: December 7, 1990
    Date of Patent: May 12, 1992
    Assignee: Pioneer Refining Services, Inc.
    Inventor: Michael T. MacKay