US 12,127,679 B2
Pocket coil spring assembly including flexible foam
Larry K. DeMoss, Greensboro, NC (US); Darin T. Thomas, Salisbury, NC (US); Brian M. Manuszak, Thomasville, NC (US); and Stephen Wallace, Duffield, VA (US)
Assigned to Sealy Technology, LLC, Trinity, NC (US)
Appl. No. 16/758,150
Filed by Sealy Technology, LLC, Trinity, NC (US)
PCT Filed Oct. 29, 2018, PCT No. PCT/US2018/057948
§ 371(c)(1), (2) Date Apr. 22, 2020,
PCT Pub. No. WO2019/089429, PCT Pub. Date May 9, 2019.
Claims priority of provisional application 62/579,209, filed on Oct. 31, 2017.
Prior Publication US 2020/0281367 A1, Sep. 10, 2020
Int. Cl. A47C 27/05 (2006.01); A47C 27/06 (2006.01); A47C 27/14 (2006.01); A47C 27/20 (2006.01)
CPC A47C 27/05 (2013.01) [A47C 27/064 (2013.01); A47C 27/063 (2013.01); A47C 27/14 (2013.01); A47C 27/20 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A pocket coil spring assembly, comprising:
a coil spring having an upper portion and a lower portion, the upper portion and the lower portion collectively defining a height of the coil spring;
a fabric pocket encasing the coil spring, the fabric pocket including a top area covering the upper portion of the coil spring and a bottom area covering the lower portion of the coil spring; and
an amount of a flexible foam dispensed as a liquid directly on the top area of the fabric pocket, the flexible foam positioned directly on the fabric pocket encasing the coil spring and entirely above the upper portion of the coil spring,
wherein the liquid dispensed on the top area of the fabric pocket reacts to form a hemisphere with a top surface having a convex shape and a flattened bottom surface.