Patents Represented by Attorney Robert E. Wickersham
  • Patent number: 4596367
    Abstract: A rotary fluid propelled device employing a natural theory of constriction and controlled redistribution to convert fluid flow to rotary mechanical energy. Two conical shell-shaped compartments opposite each other are connected by a midaxis transfer band forming the device. Rotary mechanical energy, mechanical lift force and high visual interest result from the operation of the device.
    Type: Grant
    Filed: February 29, 1984
    Date of Patent: June 24, 1986
    Inventor: John J. Wittwer
  • Patent number: D242893
    Type: Grant
    Filed: December 8, 1975
    Date of Patent: January 4, 1977
    Inventor: Louis J. Silver
  • Patent number: D245702
    Type: Grant
    Filed: September 5, 1975
    Date of Patent: September 6, 1977
    Assignee: Darpex Manufacturing Company Limited
    Inventor: Andrew John Carpenter
  • Patent number: D246876
    Type: Grant
    Filed: September 24, 1976
    Date of Patent: January 10, 1978
    Inventor: Melvin S. Warenback
  • Patent number: D247017
    Type: Grant
    Filed: August 4, 1976
    Date of Patent: January 24, 1978
    Inventor: Louis J. Silver
  • Patent number: D247342
    Type: Grant
    Filed: August 4, 1976
    Date of Patent: February 28, 1978
    Inventor: Louis J. Silver
  • Patent number: D247363
    Type: Grant
    Filed: May 7, 1976
    Date of Patent: February 28, 1978
    Inventor: Leonard Hughes
  • Patent number: D249658
    Type: Grant
    Filed: July 30, 1976
    Date of Patent: September 26, 1978
    Assignee: Leemah Electronics, Inc.
    Inventor: Gary C. Fields
  • Patent number: D252688
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: August 21, 1979
    Inventor: Chong T. Ahn
  • Patent number: D256656
    Type: Grant
    Filed: January 26, 1978
    Date of Patent: September 2, 1980
    Inventor: Albert F. Naccach
  • Patent number: D257132
    Type: Grant
    Filed: September 5, 1978
    Date of Patent: September 30, 1980
    Inventor: Walter Schramm
  • Patent number: D257838
    Type: Grant
    Filed: July 18, 1978
    Date of Patent: January 13, 1981
    Assignee: Yamaha Motor N.V.
    Inventor: John Mockett
  • Patent number: D258135
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: February 3, 1981
    Inventor: Chong T. Ahn
  • Patent number: D258450
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: March 3, 1981
    Inventor: Chong T. Ahn
  • Patent number: D258480
    Type: Grant
    Filed: May 5, 1978
    Date of Patent: March 10, 1981
    Inventor: David L. Rowland