Title:
SELF-SKINNING CAST COMPONENTS HAVING CAVITIES THEREIN
Document Type and Number:
WIPO Patent Application WO/2019/139832
Kind Code:
A1
Abstract:
Lightweight and strong components (102) may be manufactured using self-skinning foam material compositions by the processes described herein. One or more mandrels (505) may be inserted into a molding tool (530a, 530b), and a self-skinning foam material composition may be injected into the molding tool (530a, 530b). After closing the molding tool (530a, 530b), the self-skinning foam material composition may expand and cure to form a component (102), and one or more skins may be formed on exterior and/or interior surfaces of the component. For example, an external skin (104) may be formed on an exterior surface of the component in contact with surfaces of the molding tool, and one or more internal (106) skins may be formed on one or more interior surfaces of negative space spars (105) of the component in contact with surfaces of the one or more mandrels (505).
Inventors:
MCGINNIS STEVEN (US)
GLYNN PRESCOTT GEE (US)
CHELLABI KADER (US)
WALLACE ADRIAN TIMOTHY (US)
WELSH RICKY DEAN (US)
GLYNN PRESCOTT GEE (US)
CHELLABI KADER (US)
WALLACE ADRIAN TIMOTHY (US)
WELSH RICKY DEAN (US)
Application Number:
PCT/US2019/012341
Publication Date:
July 18, 2019
Filing Date:
January 04, 2019
Export Citation:
Assignee:
AMAZON TECH INC (US)
International Classes:
B29C44/58; B29C33/48; B29C33/76
Foreign References:
| US4043721A | 1977-08-23 | |||
| US20030059567A1 | 2003-03-27 | |||
| US4292101A | 1981-09-29 | |||
| US20110024350A1 | 2011-02-03 | |||
| US20050064128A1 | 2005-03-24 | |||
| US20160354968A1 | 2016-12-08 | |||
| DE1953798U | 1967-01-19 | |||
| US2199006A | 1940-04-30 | |||
| GB1478376A | 1977-06-29 | |||
| US201815871521A | 2018-01-15 | |||
| US201815871517A | 2018-01-15 | |||
| US201815871549A | 2018-01-15 |
Attorney, Agent or Firm:
CHU, Alex K. (US)
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