Patents by Inventor E. Laurence Libelo

E. Laurence Libelo 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 the microwave joining of ceramic items
    Patent number: 4767902
    Abstract: A method for joining together two ceramic items involves the steps of applying microwave radiation to the ceramic items, simultaneously applying compressive forces to the ceramic items in order to force such ceramic items together, and continually monitoring the joint being formed between the two ceramic items. An apparatus of three elements carries out the method. These elements are a single mode microwave applicator; a compressive force applicator; and a nondestructive evaluator for monitoring the formation of the joint.
    Type: Grant
    Filed: September 24, 1986
    Date of Patent: August 30, 1988
    Assignee: QuesTech Inc.
    Inventors: David E. Palaith, E. Laurence Libelo
  • Method and apparatus for the microwave joining of nonoxide ceramic items
    Patent number: 4757172
    Abstract: A method for joining together two nonoxide ceramic items involves a preliminary step of either creating a vacuum or overpressurizing a cavity, followed by the steps of applying microwave radiation to the ceramic items, simultaneously applying compressive forces to the ceramic items in order to force such ceramic items together, and continually monitoring the joint being formed between the two ceramic items. An apparatus of four basic elements carries out the method. These elements are a vacuum/overpressurization system; a single mode microwave applicator; a compressive force applicator; and a nondestructive evaluator for monitoring the formation of the joint.
    Type: Grant
    Filed: September 24, 1987
    Date of Patent: July 12, 1988
    Assignee: QuesTech Inc.
    Inventors: David E. Palaith, E. Laurence Libelo