US 11,673,314 B2
Generating three-dimensional objects
Krzysztof Nauka, Palo Alto, CA (US); Esteve Comas, Sant Quirze Del Valles (ES); Alejandro Manuel De Pena, Sant Cugat del Valles (ES); Howard S. Tom, San Jose, CA (US); and Hou T. Ng, Campbell, CA (US)
Assigned to HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P., Spring, TX (US)
Filed by Hewlett-Packard Development Company, L.P., Spring, TX (US)
Filed on Jan. 21, 2019, as Appl. No. 16/253,007.
Application 16/253,007 is a continuation of application No. 15/110,754, granted, now 10,220,564, previously published as PCT/US2014/014044, filed on Jan. 31, 2014.
Claims priority of application No. PCT/EP2014/050841 (WO), filed on Jan. 16, 2014.
Prior Publication US 2019/0152132 A1, May 23, 2019
Int. Cl. B29C 64/00 (2017.01); B29C 64/165 (2017.01); B29C 64/386 (2017.01); B29C 35/16 (2006.01); B29C 35/08 (2006.01); B29C 64/40 (2017.01); B33Y 30/00 (2015.01); B33Y 10/00 (2015.01)
CPC B29C 64/00 (2017.08) [B29C 35/0805 (2013.01); B29C 35/16 (2013.01); B29C 64/165 (2017.08); B29C 64/386 (2017.08); B29C 64/40 (2017.08); B29C 2035/0822 (2013.01); B29C 2035/0838 (2013.01); B29C 2035/1616 (2013.01); B33Y 10/00 (2014.12); B33Y 30/00 (2014.12)] 16 Claims
OG exemplary drawing
 
1. An apparatus for generating a three-dimensional object, the apparatus comprising:
an energy source to apply energy to a layer of build material to cause a first portion of the layer to coalesce and solidify;
a first agent distributor to selectively deliver a cooling agent onto a second portion of the layer;
a second agent distributor to selectively deliver coalescing agent onto the first portion of the layer; and
a controller programmed to:
control the second agent distributor to selectively deliver the coalescing agent onto the first portion of the layer to cause the first portion to coalesce and solidify in a first pattern when the energy is applied;
control the energy source to apply energy to the layer to cause the first portion to coalesce and solidify in the first pattern; and
control the first agent distributor to selectively deliver the cooling agent onto the second portion of the layer in a second pattern, the first and second patterns being independent of each other.