Boring or penetrating the earth – With tool shaft detail – Helix or helically arranged structure
Reexamination Certificate
2005-02-15
2005-02-15
Kreck, John (Department: 3673)
Boring or penetrating the earth
With tool shaft detail
Helix or helically arranged structure
C175S394000, C175S424000, C299S017000, C073S864730
Reexamination Certificate
active
06854537
ABSTRACT:
A portable apparatus for exploration and sampling of placers which is capable of being disassembled for transport into areas not accessible to traditional sampling methods. The sampling unit operates on a principle of power augering and water jetting a sampling pipe to bedrock while concurrently recovering ¾″ minus materials, including particles and nuggets of valuable minerals and gemstones, through a concentric center pipe, such recovery powered by a ring jet venturi and supplemented by a sample hole plug to increase the water pressure in the sampling hole.
REFERENCES:
patent: 656994 (1900-08-01), Munn
patent: 1071199 (1913-08-01), Andrews
patent: 1525235 (1925-02-01), Hansen
patent: 1533465 (1925-04-01), Rowe
patent: 1994884 (1935-03-01), Chew
patent: 2255167 (1941-09-01), Hunn
patent: 3486570 (1969-12-01), Richardson
patent: 3790213 (1974-02-01), Grable
patent: 3856355 (1974-12-01), Grable
patent: 3917326 (1975-11-01), Grable
patent: 3961671 (1976-06-01), Adams et al.
patent: 4140346 (1979-02-01), Barthel
patent: 4336849 (1982-06-01), Hug
patent: 4497519 (1985-02-01), Grable
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