Method and means for drilling an earthen hole

Abstract

An earthen hole drilling device has an elongated tube having first and second ends. A source of vacuum pressure is connected to the first end of the tube. A rotary fluid nozzle is attached to the second end of the tube and is adapted to direct a rotary jet of fluid to intersect the space immediately beyond the second end of the tube. An elongated fluid line has first and second ends with the first end thereof being connected to a source of fluid under pressure, such as water, and the second end of the fluid line is connected to the nozzle. The tube normally has a length of five or six feet with handles thereon so as to be manipulated by a single worker. The method of drilling an earthen hole involves the steps of emitting a rotary jet of fluid into the space behind the second end of the tube to moisten and dislodge particles of earth in the earthen hole being created. Vacuum pressure in the tube will withdraw the fluid discharged from the nozzle along with the dislodged particles of earth all of which are pulled upwardly through the tube to be remotely discharged from the location where the earthen hole is being created. A hollow housing in the shape of a hollow cone is preferably placed around the nozzle whereupon the rotary jet of fluid from the nozzle is discharged within the housing and is directed towards the open lower end of the housing.

Dependencies are inferred from the claim text.