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:
Aug. 09, 2011
Filed:
Sep. 02, 2005
Applicants:
Masahiko Tetsumoto, Kobe, JP;
Sumito Hashimoto, Kobe, JP;
Inventors:
Masahiko Tetsumoto, Kobe, JP;
Sumito Hashimoto, Kobe, JP;
Assignee:
Kobe Steel, Ltd., Kobe-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
B65G 33/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A screw conveyor for conveying an object to be conveyed, supported by a casingby rotation of a screw, in which wear of a screw blade and decrease in conveyance efficiency are prevented without the need for extra power. Load on an electric motoror the like for rotating the screwor a value corresponding to the load is measured, and if the value is equal to or larger than a preset upper limit value, a screw shaftis lifted up to increase a gap between an edge of the screw bladeand a bottom portion of the casing