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:
Nov. 18, 2008
Filed:
Mar. 30, 2005
Applicants:
Mike W. Mccaw, Seattle, WA (US);
Roman T. Dec, Anniston, AL (US);
Inventors:
Mike W. McCaw, Seattle, WA (US);
Roman T. Dec, Anniston, AL (US);
Assignee:
Weyerhaeuser Company, Federal Way, WA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 43/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A briquetting die set comprises first and second mating cylindrical dies. The first die has a plurality of adjacent recesses surrounded by a wall having an upper rim. At least a portion of the upper rim of each recess is common to an adjacent recess and has a relatively small radius of curvature. The second mating die has mirror image recesses thereon. When the first and second dies are brought into mating relationship, the upper rims of the first and second plurality of recesses mate with each other in substantially line contact to form a briquetting cavity.