US 11,052,583 B2
Cast components having surfaces with resin coatings
Steven McGinnis, Seattle, WA (US); Prescott Gee Glynn, Sammamish, WA (US); Kader Chellabi, Seattle, WA (US); Adrian Timothy Wallace, Seattle, WA (US); and Ricky Dean Welsh, Seattle, WA (US)
Assigned to Amazon Technologies, Inc., Seattle, WA (US)
Filed by Amazon Technologies, Inc., Seattle, WA (US)
Filed on Jan. 15, 2018, as Appl. No. 15/871,517.
Prior Publication US 2019/0217510 A1, Jul. 18, 2019
Int. Cl. B29C 44/58 (2006.01); B29C 44/34 (2006.01); B29C 44/42 (2006.01); B29C 33/50 (2006.01); B29D 99/00 (2010.01); B29C 33/38 (2006.01); B29L 31/30 (2006.01); B29C 33/48 (2006.01)
CPC B29C 44/583 (2013.01) [B29C 33/485 (2013.01); B29C 33/505 (2013.01); B29C 44/355 (2013.01); B29C 44/42 (2013.01); B29D 99/0025 (2013.01); B29L 2031/3085 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of manufacturing a component, comprising:
applying a urethane resin material composition to a mandrel and a molding tool;
inserting the mandrel into the molding tool;
metering a foam material composition into the molding tool;
closing the molding tool for a period of time, wherein the foam material composition expands and cures to form a component having a negative space spar during the period of time;
applying heat to the molding tool during at least a portion of the period of time, wherein the urethane resin material composition cures to form a skin of the component during the at least a portion of the period of time;
opening the molding tool after the period of time;
removing the component from the molding tool; and
removing the mandrel from the negative space spar of the component.