Patents Assigned to Mary Ann Lopacki
  • Patent number: 6637549
    Abstract: A mobile observation stand assembly includes a platform that may be in a lowered position for transport and an elevated position for use in a desired location. The assembly includes a base supported by a wheel and axle assembly, with an articulated anterior frame and an articulated posterior frame attached to the base. The posterior and anterior frames each include a basal frame and a principal frame that are jointed by a rollover lock joint that allows for pivotal movement. A leveraging cam is attached to the posterior frame, with the cam supporting the anterior frame during repositioning of the assembly.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: October 28, 2003
    Assignee: Mary Ann Lopacki
    Inventor: Edwin Francis Lopacki