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.
Patent No.:
Date of Patent:
Jul. 12, 2016
Filed:
Jul. 31, 2013
Applicant:
Caterpillar Global Mining America Llc, Houston, PA (US);
Inventors:
Benjamin P. Taylor, Blacksburg, VA (US);
James W. Coe, Jr., Rocky Gap, VA (US);
Assignee:
Caterpillar Global Mining America LLC, Houston, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/015 (2006.01); E21D 20/00 (2006.01); E21B 21/00 (2006.01);
U.S. Cl.
CPC ...
E21D 20/003 (2013.01); E21B 21/015 (2013.01); E21C 7/00 (2013.01);
Abstract
A dust collection tube arrangement is provided. The tube arrangement includes an outer tube and an inner tube. The outer tube and the inner tube have a hollow configuration. The inner tube has a diameter lesser than that of the outer tube. The inner tube moves fore and aft with respect to the outer tube. The outer and inner tubes provide a passage for dust and airflow along with adjustable length of tube arrangement based on a position of the inner tube with respect to the outer tube.