Patents by Inventor Elmer C. Ray

Elmer C. Ray 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).

  • Electric switch machine for model railroads
    Patent number: 4077591
    Abstract: This machine consists primarily of a low R.P.M., motor driven cam and follower, the follower being pivotally secured to the top of a table, upon which the railroad tracks are secured. The machine includes an adjustable push rod, secured to one leg of the follower, which will intermittently connect and disconnect a section of track with another track.
    Type: Grant
    Filed: June 30, 1977
    Date of Patent: March 7, 1978
    Inventor: Elmer C. Ray