Patents by Inventor Ainslie Walthew

Ainslie Walthew 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).

  • Device for inducing an electrical voltage
    Patent number: 4035751
    Abstract: A device for inducing an electrical voltage comprises primary and secondary windings wound round a core. The core has a first part responsive to high frequencies and a second part responsive to low frequencies. The axial length of the first part does not exceed the axial length of the second part, but exceeds the axial length of primary and secondary windings.
    Type: Grant
    Filed: May 27, 1975
    Date of Patent: July 12, 1977
    Inventor: Ainslie Walthew