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.

Date of Patent:
Dec. 30, 2014

Filed:

Sep. 15, 2011
Applicants:

Jeffrey L. Beck, Honey Brook, PA (US);

Myron Henry Wardell, Lititz, PA (US);

Boyd E. Knepp, Lancaster, PA (US);

Inventors:

Jeffrey L. Beck, Honey Brook, PA (US);

Myron Henry Wardell, Lititz, PA (US);

Boyd E. Knepp, Lancaster, PA (US);

Assignee:

Lumsden Corporation, Lancaster, PA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B07B 1/46 (2006.01);
U.S. Cl.
CPC ...
B07B 1/4672 (2013.01); B07B 1/4681 (2013.01);
Abstract

A screening having a plurality of warp elements. The plurality of warp elements includes first and second warp elements each having a plurality of undulations oriented in any desired manner including but not limited to horizontal or vertical. At least one retaining member is operably associated with the plurality of warp elements to form an integral screen segment having a plurality of openings. The first warp element has at least one characteristic different from the second warp element to prevent blinding of the screen segment. The at least one characteristic affecting movement of the first warp element and the second warp element when the screen segment is used to classify material such that at least one of amplitude and frequency of movement of the first warp screening element is different from that of the second warp element when subjected to the same operating condition.


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