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Title: Rotary powder feed through apparatus

Abstract

A device for increasing the uniformity of solids within a solids fabrication system, such as a direct light fabrication (DLF) system in which gas entrained powders are passed through the focal point of a moving high-power light which fuses the particles in the powder to a surface being built up in layers. The invention provides a feed through interface wherein gas entrained powders input from stationary input lines are coupled to a rotating head of the fabrication system. The invention eliminates the need to provide additional slack in the feed lines to accommodate head rotation, and therefore reduces feed line bending movements which induce non-uniform feeding of gas entrained powder to a rotating head.

Inventors:
 [1];  [1]
  1. Los Alamos, NM
Issue Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
874066
Patent Number(s):
6305884
Assignee:
The Regents of the University of California (Oakland, CA)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B05 - SPRAYING OR ATOMISING IN GENERAL B05B - SPRAYING APPARATUS
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23K - SOLDERING OR UNSOLDERING
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
rotary; powder; feed; apparatus; device; increasing; uniformity; solids; fabrication; direct; light; dlf; gas; entrained; powders; passed; focal; moving; high-power; fuses; particles; surface; built; layers; provides; interface; input; stationary; lines; coupled; rotating; head; eliminates; provide; additional; slack; accommodate; rotation; reduces; line; bending; movements; induce; non-uniform; feeding; provide additional; /406/

Citation Formats

Lewis, Gary K, and Less, Richard M. Rotary powder feed through apparatus. United States: N. p., 2001. Web.
Lewis, Gary K, & Less, Richard M. Rotary powder feed through apparatus. United States.
Lewis, Gary K, and Less, Richard M. Mon . "Rotary powder feed through apparatus". United States. https://www.osti.gov/servlets/purl/874066.
@article{osti_874066,
title = {Rotary powder feed through apparatus},
author = {Lewis, Gary K and Less, Richard M},
abstractNote = {A device for increasing the uniformity of solids within a solids fabrication system, such as a direct light fabrication (DLF) system in which gas entrained powders are passed through the focal point of a moving high-power light which fuses the particles in the powder to a surface being built up in layers. The invention provides a feed through interface wherein gas entrained powders input from stationary input lines are coupled to a rotating head of the fabrication system. The invention eliminates the need to provide additional slack in the feed lines to accommodate head rotation, and therefore reduces feed line bending movements which induce non-uniform feeding of gas entrained powder to a rotating head.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}