Patents by Inventor Jess Dewey Janssen

Jess Dewey Janssen has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Temporary rooftop and stairway safety rail system
    Patent number: 7028990
    Abstract: A temporary rooftop and stairway safety rail system (16a & 16b) adapted to prevent workers from falling from a work surface at a height. The system includes a plurality of safety rail support assemblies (16) having a vertical support member (52) with members for retaining horizontally disposed safety rail boards (58). The safety rail support assemblies (16) may be mounted on walls (22) and roof rafters (18), and the pitch of the vertical support members is easily adjusted to the slope of the work surface using a system of removable pins (32).
    Type: Grant
    Filed: May 11, 2001
    Date of Patent: April 18, 2006
    Inventors: Ray Robert Shorey, Jess Dewey Janssen