Patents by Inventor Donald R. Redman

Donald R. Redman 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).

  • Amphibious vehicle having an inflatable pontoon
    Patent number: 6526900
    Abstract: An amphibious vehicle having inflatable pontoons disposed in recesses formed in the vehicle body. The inflatable pontoons retract into the recesses when deflated to reduce the overall width of the vehicle to below the maximum allowable width for a road vehicle. The inflatable pontoons extend when inflated to beyond the maximum allowable width for road vehicles, thereby improving the stability of the vehicle when it is operated in water. The inside surfaces of the recesses provide support for transferring the uplift force generated by the pontoons to the vehicle body when in water. An elastic member may be used to retract the deflated pontoons into the recess. Decorative doors covering the recesses are forced open by the inflating pontoons to a position above the water line.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: March 4, 2003
    Assignee: Trolley Boat LLC
    Inventor: Donald R. Redman
  • Amphibious vehicle having an inflatable pontoon
    Publication number: 20020025734
    Abstract: An amphibious vehicle having inflatable pontoons disposed in recesses formed in the vehicle body. The inflatable pontoons retract into the recesses when deflated to reduce the overall width of the vehicle to below the maximum allowable width for a road vehicle. The inflatable pontoons extend when inflated to beyond the maximum allowable width for road vehicles, thereby improving the stability of the vehicle when it is operated in water. The inside surfaces of the recesses provide support for transferring the uplift force generated by the pontoons to the vehicle body when in water. An elastic member may be used to retract the deflated pontoons into the recess. Decorative doors covering the recesses are forced open by the inflating pontoons to a position above the water line.
    Type: Application
    Filed: July 27, 2001
    Publication date: February 28, 2002
    Inventor: Donald R. Redman
  • Cryptosporidiosis amelioration
    Patent number: 5200418
    Abstract: This invention relates to the amelioration of cryptosporidiosis symptoms, such as diarrhea, caused by the parasite crypotosporidium in susceptible host animals using effective amounts of decoquinate.
    Type: Grant
    Filed: July 12, 1991
    Date of Patent: April 6, 1993
    Assignees: The Ohio State University, Rhone-Poulenc Inc.
    Inventors: Donald R. Redman, James E. Fox
  • Trolley boat
    Patent number: D436891
    Type: Grant
    Filed: June 19, 2000
    Date of Patent: January 30, 2001
    Inventor: Donald R. Redman