Patents by Inventor Alan G. Abraham

Alan G. Abraham 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).

  • Method and apparatus for transferring control information between two members
    Patent number: 4175230
    Abstract: There is provided optical arrangements rather than conventional electrical slip rings for transferring control information between two members, one of which is rotatable relative to the other. The information may be transferred by a laser beam which is pulse modulated. The use of an optical method overcomes the disadvantages associated with electrical slip rings, for example, poor contact, unreliability, electromagnetic interference and mechanical complexity.
    Type: Grant
    Filed: April 26, 1978
    Date of Patent: November 20, 1979
    Assignee: International Standard Electric Corporation
    Inventors: Gordon S. Richards, Peter E. Douglas, Alan G. Abraham