Patents by Inventor Edward A. G. Hamer

Edward A. G. Hamer 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).

  • Process for preparing microporous polyethylene film by uniaxial cold and hot stretching
    Patent number: 4620956
    Abstract: An improved process for the production of a microporous polyethylene film by cold stretching and hot stretching a non-porous crystalline, elastic polyethylene film, whereby the permeability of the resultant film is improved by controlling both the stretching rates during cold and hot stretching and the sum of the changes in length during each stretching step.
    Type: Grant
    Filed: July 19, 1985
    Date of Patent: November 4, 1986
    Assignee: Celanese Corporation
    Inventor: Edward A. G. Hamer
  • Multiple channel electronic countermeasures receiver system
    Patent number: 4170009
    Abstract: 1.
    Type: Grant
    Filed: December 3, 1963
    Date of Patent: October 2, 1979
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventor: Edward G. Hamer
  • Frequency agility radar
    Patent number: 4038659
    Abstract: A frequency agility radar having automatic electronic front end tuning in synchronism with the transmitter on a pulse to pulse basis is provided. The automatic electronic front end tuning is achieved by the use of a backward wave parametric amplifier. The frequency generated by the radar transmitter is employed to control the center frequency of backward wave amplifier. The backward wave amplifier operates as an electronically tuned filter with the center frequency of the tuner following the radar frequency accurately.
    Type: Grant
    Filed: September 9, 1966
    Date of Patent: July 26, 1977
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Edward G. Hamer, Calvert F. Phillips, Jr.