Granted Patent B2

US 10,124,515 · App. 14/487,296 · Granted Nov 13, 2018

Abstract

Claims (19)

1. A method of producing a pillow, comprising the steps of:

providing a foam molding system having an open position and a closed position, the foam molding system including a top mold defining a plurality of air ports extending through the top mold, and a bottom mold defining a plurality of air ports extending through the bottom mold;

applying a vacuum to the plurality of air ports defined by the top mold and to the plurality of air ports defined by the bottom mold;

positioning a first gel insert against the plurality of air ports defined by the top mold when the foam molding system is in an open position, such that the first gel insert is held against the plurality of air ports defined by the top mold as a result of the applied vacuum;

positioning a second gel insert against the plurality of air ports defined by the bottom mold, such that the second gel insert is held against the plurality of air ports defined by the bottom mold as a result of the applied vacuum;

dispensing a foam precursor into the bottom mold atop the second gel insert; and

securing the top mold to the bottom mold to place the foam molding system in the closed position, such that, upon reaction and expansion of the foam precursor, the molded foam pillow is produced having the first gel insert positioned on a first top side of the molded foam pillow and the second gel insert positioned on a second bottom side of the molded foam pillow opposite the first top side;

wherein the vacuum applied to the plurality of air ports defined by the top mold is sufficient to hold the first gel insert against the top mold when the foam molding system is in the open position and when the foam molding system is in the closed position while the foam precursor reacts and expands.

2. The method of claim 1 , wherein the step of applying the vacuum comprises applying a first vacuum to the plurality of air ports defined by the top mold and applying a second vacuum to the plurality of air ports defined by the bottom mold.

3. The method of claim 2 , wherein the first vacuum applied to the top mold is greater than the second vacuum applied to the bottom mold.

4. The method of claim 3 , wherein, prior to positioning the first gel insert and the second gel insert, the vacuum applied to the bottom mold moves less than about 30 cfm of air through the plurality of air ports defined by the bottom mold and the vacuum applied to the top mold moves greater than about 300 cfm of air through the plurality of air ports defined by the top mold.

5. The method of claim 1 , wherein the plurality of air ports defined by the top mold and the plurality of air ports defined by the bottom mold are each arranged in an array.

6. The method of claim 1 , wherein the foam molding system further includes a vacuum pump operably connected to the plurality of air ports defined by the top mold and to the plurality of air ports defined by the bottom mold, the vacuum pump for applying the vacuum.

7. The method of claim 6 , wherein the foam molding system further comprises an air control unit for controlling the vacuum pump.

8. The method of claim 1 , further comprising the step of setting the foam precursor in the foam molding system for an amount of time sufficient to allow the first gel insert and the second gel insert to bond to the setting foam precursor.

9. The method of claim 8 , wherein the amount of time is about ten to about fifteen minutes.

10. The method of claim 8 , further comprising the step of removing the molded foam pillow from the foam molding system subsequent to setting the foam precursor.

11. The method of claim 1 , wherein the foam precursor is a visco-elastic foam precursor.

12. A pillow produced by the method of claim 1 .

Assignments (6)