Patents Assigned to BTI Company
  • Bar stock silencer tube
    Patent number: 3930568
    Abstract: There is provided an improved bar stock feed tube characterized by its ability to reduce noise level. The tube structure is composed of inner and outer tubes defining an annular space therebetween, the annular space being sealed at each end and being filled with a particulate material, particularly metallic shot, e.g. lead.
    Type: Grant
    Filed: August 29, 1974
    Date of Patent: January 6, 1976
    Assignee: BTI Company
    Inventor: Cyril D. Levey