Patents Assigned to Surv-Kap, Inc.
  • Survey monument and improved extraction restriction means therefor
    Patent number: 5291703
    Abstract: A survey monument has a simple spring clip extraction restricting means formed as a wire form spring member to provide a straight leg inserted in a diametral opening in the rod and a curved co-planar leg which effects a snap fit with the outer periphery of the rod. An axially extending leg is offset radially outwardly and yields to displacement while imparting rotational torque to the rod when the rod is driven into the ground, but opens and restricts extraction when the rod is moved in an opposite direction.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: March 8, 1994
    Assignee: Surv-Kap, Inc.
    Inventor: Richard W. Ziegler