Patent ID: 8611191

Claim:
A land-based seismic data collection system comprising: a case comprising a cap and a container, each of said cap and container having a wall with an outer surface and an inner surface and a closed end, each of said walls forming an open end characterized by a periphery, one of said ends is disposed to seat inside the other said end, wherein each of said ends is provided with a plurality of teeth around its periphery, wherein said teeth of said cap and said container engage one another when one of said ends is seated inside the other end; a geophone disposed in said case, at least one through bore passing through a wall or closed end of said cap or container; an elongated, electrically conductive pin having a first end and a second end and defined along an axis; an o-ring groove defined along the pin; a fastener attachment structure defined adjacent the second end; a shoulder defined on said pin between said o-ring groove and said fastener structure; a wire attachment structure defined adjacent the second end; and an o-ring mounted in said o-ring groove of said pin and sealably engaging the through bore of said cap or container.