Patents Assigned to Penn Rail Systems, Inc.
  • Anchoring device for securing a threaded member to a substrate
    Patent number: 6273657
    Abstract: An anchoring device for anchoring a threaded member in a substrate material. More particularly, an anchoring system for anchoring a threaded member in a substrate material, which anchoring system is designed to alleviate the stresses caused during use when water trapped within the anchoring system between an anchoring sheath and a threaded member expands upon freezing.
    Type: Grant
    Filed: December 29, 1999
    Date of Patent: August 14, 2001
    Assignee: Penn Rail Systems, Inc.
    Inventor: Vladimir A. Vorona