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:
Apr. 03, 2007
Filed:
May. 31, 2005
Applicants:
Stacy L. Gildersleeve, Vancouver, WA (US);
Tomas A. Glascoe, Vancouver, WA (US);
Inventors:
Stacy L. Gildersleeve, Vancouver, WA (US);
Tomas A. Glascoe, Vancouver, WA (US);
Assignee:
Columbia Machine, Inc., Vancouver, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B02C 19/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A tumbler for tumbling concrete products comprises a rotatable cylindrical drum having an input end that is slightly elevated relative to an output end. Tire retread strips are placed side-by-side on the radially inner surface of the drum and extend along its length. Clamps having lateral arms extending on either side are engaged with lateral tread grooves on the strips. The clamps are bolted to the drum between adjacent strips thereby securing the strips to the radially inner surface of the drum.