The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 10, 2016

Filed:

Sep. 08, 2015
Applicants:

Otis Walton, Livermore, CA (US);

Hubert J. Vollmer, Tracy, CA (US);

Inventors:

Otis Walton, Livermore, CA (US);

Hubert J. Vollmer, Tracy, CA (US);

Assignee:

Other;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 49/02 (2006.01); E21B 10/43 (2006.01); E21B 10/00 (2006.01); E21B 10/54 (2006.01); E21B 7/06 (2006.01); E21B 3/00 (2006.01);
U.S. Cl.
CPC ...
E21B 10/43 (2013.01); E21B 3/00 (2013.01); E21B 7/06 (2013.01); E21B 10/003 (2013.01); E21B 10/54 (2013.01); E21B 49/02 (2013.01);
Abstract

A conical feeder is attached to a vertically conveying screw auger. The feeder is equipped with scoops and rotated from the surface to force-feed regolith the auger. Additional scoops are possible by adding a cylindrical section above the conical funnel section. Such then allows the unit to collect material from swaths larger in diameter than the enclosing casing pipe of the screw auger. A third element includes a flexible screw auger. All three can be used in combination in microgravity and zero atmosphere environments to drill and recover a wide area of subsurface regolith and entrained volatiles through a single access point on the surface.


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