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:
Dec. 08, 2020
Filed:
May. 15, 2018
Hcc, Inc., Mendota, IL (US);
David Mammen, Mendota, IL (US);
Paul Aubry, Ottawa, IL (US);
HCC, INC., Mendota, IL (US);
Abstract
A high strength sieve which is lightweight and durable without having to add springs, and without requiring a high level of force to effect adjustment of the louvers. The high strength sieve utilizes hollow tubes to support the louvers. Providing hollow tubes (i.e., rather than solid wires) allows for larger diameter holes to be used in the frame. This provides for increased bearing surfaces, as well as provides for better tolerances. This reduces the movement of the tubes within the holes. Preferably, the tubes are mounted in the frame through holes which are extruded, thereby providing for increased bearing surfaces and a tighter fit. The extruded holes also provide a natural lead-in for the insertion of the tubes (i.e., during assembly of the sieve). Alternatively, solid wires can be provided extending through the extruded holes instead of hollow tubes.