Patents by Inventor E. A. Bender

E. A. Bender 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).

  • Patent number: 5281109
    Abstract: Shallow well pumping apparatus comprising a modified walking beam structure in which the beam itself is replaced by a tower intermediate a drive motor and the wellhead, wherein belting, capable of shock absorbtion, is employed as a shock absorbing motion translating and transmitting system for reciprocating a sucker rod to pump fluids from a subsurface deposit.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: January 25, 1994
    Inventor: E. A. Bender
  • Patent number: 5018350
    Abstract: A long stroke deep well pumping unit which employs a fluid motor connected with a polish rod by using a plurality of belts, fixed at either end, to reciprocate the sucker rod through repeated long strokes with a minimum of stress and shock to the sucker rod during directional change.
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: May 28, 1991
    Inventor: E. A. Bender