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:
Nov. 09, 2021

Filed:

Mar. 31, 2014
Applicant:

Hewlett-packard Development Company, L.p., Houston, TX (US);

Inventor:

David H. Donovan, San Diego, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B33Y 30/00 (2015.01); B29C 64/153 (2017.01); B33Y 50/02 (2015.01); B29C 64/165 (2017.01); B29C 64/135 (2017.01); B29C 64/40 (2017.01);
U.S. Cl.
CPC ...
B29C 64/153 (2017.08); B29C 64/135 (2017.08); B29C 64/165 (2017.08); B33Y 30/00 (2014.12); B33Y 50/02 (2014.12); B29C 64/40 (2017.08);
Abstract

A three-dimensional object may be generated. A controller may be to control an energy source to apply energy to a layer of build material on a support member or previous layer to cause a portion of the layer to coalesce and solidify to form a slice of the three-dimensional object. A radiation sensor may be to measure absorbance or gloss of the layer. The controller may be to receive, from the radiation sensor, data representing measured absorbance or measured gloss of the layer. The controller may be to control the apparatus to modify a process parameter if the measured absorbance or gloss indicates an incorrect degree of solidification of a part of the layer.


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