Patent ID: 11904512
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A method of making a vehicle headrest restraint comprising:
connecting first and second molds to form an enclosed mold cavity having a lower end and an upper end;
injecting a first material with a first density into the mold cavity through an injection port inserted at a fixed location within the upper end such that the first material settles in the lower end of the mold cavity;
injecting a second material with a second density into the mold cavity through the injection port at the fixed location and through the upper end to settle over the first material and to extend to the upper end of the mold cavity; and
subsequently allowing the first and second materials to cure together to develop an integrally formed headrest having a rearward stiff foam portion developed from the first material and a forward flexible portion developed from the second material.