Patents by Inventor Donald A. MacLeod

Donald A. MacLeod 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).

  • Patent number: 4045714
    Abstract: A plurality of control stations spaced along conductor lines; a normally closed disconnect switch at each station for connecting or disconnecting said conductor lines; a fault detector at each station; a status indicator at each station to indicate the status of said fault detector and of said disconnect switch; an electrically actuated indicator device remote from said stations; remote power source; and remote control selector means for selectively connecting the status indicator of a selected station to said indicator device for indicating the status of said fault detector and of said disconnect switch; said selector means being also capable of connecting said remote power source to the disconnect switch a selected station for opening or closing said disconnect switch.
    Type: Grant
    Filed: April 8, 1975
    Date of Patent: August 30, 1977
    Inventor: Donald A. MacLeod