Joseph David Walters

US Patent:

20180162039, Jun 14, 2018

Filed:

Feb 9, 2018

Appl. No.:

15/892920

Inventors:

- Chicago IL, US
Jason Turner - Marysville WA, US
Joseph D. Walters - Everett WA, US

International Classification:

B29C 51/36
B29C 70/44
B29C 70/46

Abstract:

A method for making a structural sandwich panel includes the steps of positioning a first and second thermoplastic skin elements in overlying relationship with respect to a heated male and heated female die molds respectively. A first pressure reduction is applied between the first thermoplastic skin element and the heated male die mold and a second pressure reduction is applied between the second thermoplastic and the heated female die mold. A core panel element is positioned between the heated male die mold and the heated female die mold wherein the core panel element has a first adhesive on a first side and has a second adhesive on a second opposing side. The male and female die molds are closed and exert a pressure onto the core panel element to secure the first and second thermoplastic skin elements to the core panel element and form the core panel element.