US 11,867,248 B2
Lattice transitioning structures in additively manufactured products
Hardik Kabaria, San Francisco, CA (US); and Aidan Kurtz, Palomar Park, CA (US)
Assigned to Carbon, Inc., Redwood City, CA (US)
Appl. No. 17/269,129
Filed by Carbon, Inc., Redwood City, CA (US)
PCT Filed Oct. 17, 2019, PCT No. PCT/US2019/056706
§ 371(c)(1), (2) Date Feb. 17, 2021,
PCT Pub. No. WO2020/086372, PCT Pub. Date Apr. 30, 2020.
Claims priority of provisional application 62/748,624, filed on Oct. 22, 2018.
Prior Publication US 2021/0246959 A1, Aug. 12, 2021
Int. Cl. B33Y 10/00 (2015.01); B33Y 50/00 (2015.01); B33Y 80/00 (2015.01); B29C 64/10 (2017.01); F16F 1/373 (2006.01); B29C 64/386 (2017.01); F16H 51/00 (2006.01)
CPC F16F 1/3737 (2013.01) [B29C 64/10 (2017.08); B29C 64/386 (2017.08); B33Y 10/00 (2014.12); B33Y 50/00 (2014.12); B33Y 80/00 (2014.12); F16H 51/00 (2013.01); F16F 2226/04 (2013.01); F16F 2234/06 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An additively manufactured lattice structure, comprising:
(a) a first three-dimensional lattice comprising a repeating interconnected array of a first lattice unit cell;
(b) a second three-dimensional lattice comprising a repeating interconnected array of a second lattice unit cell, wherein said second lattice unit cell is different from said first lattice unit cell;
(c) a first transition segment interconnecting said first three-dimensional lattice and said second three-dimensional lattice; said first transition segment comprising:
(i) a first three-dimensional transitional lattice comprising a repeating array of said first lattice unit cell; and
(ii) interleaved with and interconnected to said first three-dimensional transitional lattice, a second three-dimensional transitional lattice comprising a repeating array of said second lattice unit cell,
wherein:
said first transition segment has a first portion connected to said first three-dimensional lattice and a second portion connected to said second three-dimensional lattice;
said first lattice unit cells of said first three-dimensional transitional lattice progressively contract in size from said first portion to said second portion; and
said second lattice unit cells of said second three-dimensional transitional lattice progressively expand in size from said first portion to said second portion.