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:
Jan. 25, 1977
Filed:
Mar. 01, 1976
Edward W Rowland-Hill, Lancaster, PA (US);
Louis R Thomas, Jr, New Holland, PA (US);
Sperry Rand Corporation, New Holland, PA (US);
Abstract
A combine of the axial flow type having an axially extending power driven rotor which coacts with a concave complementary in shape to that of the rotor to thresh a wide variety of agricultural crop material. The concave comprises a plurality of longitudinal bars that are spaced transversely and a first row of curved wires extend through said bars adjacent the upper edges thereof and are spaced even distances in a longitudinal direction to form passages for threshed crop material. A second row of wires extend through a row of holes in said bars below said first row of wires. The second row of wires is spaced more closely than the wires of the first row to form pockets which receive said threshed crop material and remove the same from contact by said rotor to prevent damage to the threshed material and also provide more aggressive threshing of the material.