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:
Nov. 08, 2011

Filed:

Apr. 02, 2007
Applicants:

Wallace Bolton, Harrogate, TN (US);

Demrey G. Brandon, Pittsburgh, PA (US);

Ben Mirabile, Lerona, WV (US);

John G. Oldsen, Butler, PA (US);

John C. Stankus, Canonsburg, PA (US);

Rodney Poland, Morgantown, WV (US);

Inventors:

Wallace Bolton, Harrogate, TN (US);

Demrey G. Brandon, Pittsburgh, PA (US);

Ben Mirabile, Lerona, WV (US);

John G. Oldsen, Butler, PA (US);

John C. Stankus, Canonsburg, PA (US);

Rodney Poland, Morgantown, WV (US);

Assignee:

FCI Holdings Delaware, Inc., Wilmington, DE (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21D 15/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A mine support yieldable prop includes a threaded shaft rotatably mounted in an end of the prop to move into and out of the prop end to move a bearing plate toward or away from a mine roof, and/or a bearing plate pivotally mounted to the end of the prop to level the prop with uneven mine roofs.


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