초록 ▼

The present invention is a soil sampling probe where a conical piston is kept at the opening to the sampling container by a first threaded portion near the top of the piston rod which engages a threaded opening near the top end of the container. With the piston in this position the probe is more str

The present invention is a soil sampling probe where a conical piston is kept at the opening to the sampling container by a first threaded portion near the top of the piston rod which engages a threaded opening near the top end of the container. With the piston in this position the probe is more streamlined to reduce the required driving force. When the desired depth is reached, the piston rod is rotated until the first threaded portion of the piston rod is disengaged from the threaded opening at the top end of the container. The piston is then raised until a second threaded portion of the piston rod, near the piston itself, engages a threaded lock ring near the top end of the container. Thus the piston is locked in place near the top of the container. The container is then further inserted to take the core sample.

대표청구항 ▼

A soil sampling probe comprising: a split barrel sample container having first and second ends, and a bore, said bore having a longitudinal axis; a lock ring fitted within said bore proximate said split barrel sample container first end and having an inside surface, and said lock ring having female

A soil sampling probe comprising: a split barrel sample container having first and second ends, and a bore, said bore having a longitudinal axis; a lock ring fitted within said bore proximate said split barrel sample container first end and having an inside surface, and said lock ring having female threads on the inside surface thereof; a piston arranged to slidably move within said bore; and a piston rod having first and second ends, said piston rod first end engaging said piston, and said piston rod being substantially concentric with said bore.