Patents by Inventor Emery W. Davis

Emery W. Davis 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: 6595284
    Abstract: A one-piece wire guard device formed of non-metallic material for use in wells includes an inner ring having a split therein defining an opening and having a portion of reduced thickness defining a hinge is disclosed. Arcuate sections are disposed concentrically outwardly of the inner ring and are connected to the latter by ribs. The ribs, arcuate sections and inner ring cooperate with each other to define openings for accommodating electric wires, ropes and the like therethrough. A guard device may be flexed about its hinge from a normally closed condition to an open position to permit a drop pipe to be inserted through the opening defined by the split. Releasably locking means, including an elongated locking element, lock the guard device upon the drop pipe. Spacer tabs extend outwardly from the arcuate sections and engage a well casing to space the drop pipe from the casing and thereby prevent damage to the drop pipe, electrical wires, safety ropes and the like extending through the guard device.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: July 22, 2003
    Inventor: Emery W. Davis
  • Publication number: 20030019624
    Abstract: A one-piece wire guard device formed of non-metallic material for use in wells includes an inner ring having a split therein defining an opening and having a portion of reduced thickness defining a hinge is disclosed. Arcuate sections are disposed concentrically outwardly of the inner ring and are connected to the latter by ribs. The ribs, arcuate sections and inner ring cooperate with each other to define openings for accommodating electric wires, ropes and the like therethrough. A guard device may be flexed about its hinge from a normally closed condition to an open position to permit a drop pipe to be inserted through the opening defined by the split. Releasably locking means, including an elongated locking element, lock the guard device upon the drop pipe. Spacer tabs extend outwardly from the arcuate sections and engage a well casing to space the drop pipe from the casing and thereby prevent damage to the drop pipe, electrical wires, safety ropes and the like extending through the guard device.
    Type: Application
    Filed: April 10, 2002
    Publication date: January 30, 2003
    Inventor: Emery W. Davis
  • Patent number: 6105669
    Abstract: A device for closing an end of a well casing includes a gasket, a base and a cap. The gasket has an inner diameter that fits around the well casing. The base has an upwardly facing groove for receiving a lower portion of the gasket, a circular opening slightly larger than the exterior diameter of the well casing thereby permitting the base to be positioned about the well casing, and a plurality of lugs positioned about the periphery of the base. The base also includes an annular flange that projects downward from the lower surface of the base, the annular flange has an inwardly facing surface extending axially downward from the groove in the base. The groove in the base has an inwardly facing wall parallel with the flange inner surface and an upwardly facing shoulder perpendicular to the flange inwardly facing wall that connects the flange inwardly facing wall with the groove annular surface. The base has an upwardly facing surface adjoining the groove annular surface.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: August 22, 2000
    Inventor: Emery W. Davis
  • Patent number: D441054
    Type: Grant
    Filed: May 11, 1999
    Date of Patent: April 24, 2001
    Inventor: Emery W. Davis