Patents by Inventor William H. Ralph

William H. Ralph 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).

  • Balloon powered airplane
    Patent number: 4096660
    Abstract: A balloon powered toy airplane including a one piece stick fuselage having a wing mounted thereon and a stabilizer and fin also mounted thereon. A balloon inflatable at one end with the other closed end secured to the fuselage. Secured to and depending from the fuselage is a loop through which the balloon extends in alignment with the fuselage. With the balloon inflated and released the airplane flies as a result.
    Type: Grant
    Filed: September 2, 1976
    Date of Patent: June 27, 1978
    Inventor: William H. Ralph