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:
Sep. 01, 2020
Filed:
Sep. 11, 2019
The Exone Company, North Huntingdon, PA (US);
Adam W. Stroud, Rosharon, TX (US);
Rick D. Lucas, Belmont, OH (US);
Michael John McCoy, Murrysville, PA (US);
Anthony S. Dugan, Irwin, PA (US);
Joseph J. Bolt, Irwin, PA (US);
The ExOne Company, North Huntingdon, PA (US);
Abstract
Powder layer smoothing devices () adapted for use with powder-layer three-dimensional printers () are described. The smoothing devices () include a counter rotating roller () having a complex powder engaging face () that may include a series or plurality of flutes () or may include knurling () extending along at least a portion of the counter rotating roller () along its rotational axis (). The smoothing device () may also include a vertically adjustable finishing roller () to follow the counter rotating roller () across the build box () of the powder-layer three-dimensional printer ().