U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Corn cob saver sieve for combines

Patent 4600019 Issued on July 15, 1986. Estimated Expiration Date: Icon_subject May 13, 2005. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

677857

882723

1939314

3109433

Inventor

Application

No. 06/733193 filed on 05/13/1985

US Classes:

460/101, Sieve or grate209/397, Perforated sheet56/14.2, With opposed-gatherer-couple unit56/16.5For separating one material from another

Examiners

Primary: Eskovitz, Jay N.

International Classes

A01D 45/02 (20060101)
A01D 45/00 (20060101)
A01F 12/44 (20060101)

Abstract

The adjustable chaffer and lower sieve of a combine harvester are replaced by a cob catcher or cob-saving sieve which allows corncobs along with shelled corn to be recovered as a mixture from the harvester rather than separating the corn from the cobs and discarding the cobs. The cob-saving sieve comprises a framework incorporating parallel inclined vanes sufficiently spaced apart to allow cobs to pass therethrough and disposed at an angle to direct airflow from the harvester fan over the surface of the sieve for removal of unwanted material.

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