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:
Oct. 31, 2000
Filed:
Sep. 16, 1999
Applicant:
Inventors:
David Anthony Craig, Boston, MA (US);
Thomas Anthony Royal, North Andover, MA (US);
Assignee:
Jenike & Johanson, Inc., Westford, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E04H / ; B65G / ; B65D / ; B65D / ;
U.S. Cl.
CPC ...
414287 ; 52192 ; 52197 ; 52 793 ; 52 797 ; 222564 ; 239379 ;
Abstract
A silo for gravity flow storage of bulk particulate solids comprises downwardly converging and downwardly diverging walls. The downwardly converging walls form angles to the vertical that satisfy the conditions for mass flow. The walls impose particle velocity gradients in the horizontal cross sections of the silo, reducing interparticle cohesion, preventing the formation of arches and promoting uniformity of residence time within the silo. The modules may be vertically stacked, and may be clustered to increase capacity and to reduce pressure stress levels where required.