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US 5,669,454 AGranted
Drive point device
OwnerKent E. Cordryinventor
Life of this patent
Estimating the term…
Abstract
Described is a device for driving into the ground which includes a drive point, a fluid passage section, an annular seal and an annular drive rod. The annular seal is the widest member and fits snugly in a borehole formed after the device is driven into the ground to form a seal. Specially configured drive points are also described.
Claims17
A device adapted to be driven into the ground to form a borehole comprising:
- a drive point having top and bottom ends with means to penetrate the ground surface on its bottom end;
- a sealing body for providing a seal between the ground and the device when the device is in the borehole, said sealing body having top and bottom ends and a bore therethrough defining an inner surface, wherein said sealing body bottom end is removably connected to the top end of the drive point, and wherein said sealing body has its top end configured for releasable connection, directly or indirectly, to a drive rod assembly so that the drive rod assembly can be removed from the device, thereby leaving the device downhole;
- and
- means removably located within the sealing body bore for flow of fluids either from the ground to be sampled at the ground surface or from the ground surface to be injected into the ground.
1 more element
A device adapted to be driven into the ground to form a borehole comprising:
- a drive point having top and bottom ends with means to penetrate the ground surface on its bottom end;
- a sealing body for providing a seal between the ground and the device when the device is in the borehole, said sealing body having top and bottom ends and a bore therethrough defining an inner surface, wherein said sealing body bottom end is removably connected to the top end of the drive point, and wherein said sealing body has its top end configured for releasable connection, directly or indirectly, to a drive rod assembly so that the drive rod assembly can be removed from the device, thereby leaving the device downhole, said drive point including thread means for engaging an end of a perforated pipe so that said perforated pipe, when engaged, extends up through the bore in the sealing body to transport fluids from the ground to be sampled at the ground surface or from the ground surface to be injected into the ground.
Dependencies are inferred from the claim text.