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. 30, 1979
Filed:
Jul. 18, 1977
Applicant:
Inventor:
Lawrence A Botkin, Omaha, NE (US);
Assignee:
Fruehauf Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B65G / ;
U.S. Cl.
CPC ...
222195 ; 366107 ; 406137 ;
Abstract
An aerating or fluidizing device is located adjacent the gravity discharge opening of a hopper. The device is in the form of a flexible, resilient member fixed so that a marginal edge normally contacts and defines an interface with an associated surface. Air under pressure is fed to the interface in such fashion as to cause the marginal edge of the resilient member to flutter and allow the air to escape in randomly directed 'puffs.' The fluttering movement combined with the intermittent puffs of air causes pulverulent material to be agitated, aerated and/or fluidized as it passes to the discharge opening.