Earth reduction tool

Details Earth reduction tool Earth reduction tool

2006-10-05

2010-06-29

Pezzuto, Robert E (Department: 3671)

Excavating

Beneath a body of water

Suction

C037S347000

Reexamination Certificate

active

07743537

ABSTRACT:
An earth reduction tool configured to connect to a vacuum source of an earth reduction system for moving material comprising an elongated body defining a first end for connecting to the vacuum source, an opposite second end, and an elongated vacuum passage extending through the elongated body between the first and the second ends. The tool also has an elongated air passage extending from the body second end to at least a point intermediate the elongated body first and second ends, the air passage having an open first end and an open second end proximate the elongated body second end that is in fluid communication with the elongated body vacuum passage second end, wherein when the vacuum source pulls a vacuum through the elongated body vacuum passage, air is drawn up into the vacuum passage from the air passage open second end.

REFERENCES:
patent: 5140759 (1992-08-01), Artzberger
patent: 6470605 (2002-10-01), Gilman et al.
patent: 6615849 (2003-09-01), Gilman et al.
patent: 6691436 (2004-02-01), Chizek, Sr.
patent: 2006/0117612 (2006-06-01), Maybury
Reimann & Georger Corp.—Web Site Brochure for Hydra Core Drill.

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