US 12,145,837 B2
Apparatus and method for making a resilient unit
Simon Spinks, Leeds (GB); and David Clare, Leeds (GB)
Assigned to HS PRODUCTS LIMITED, Leeds (GB)
Appl. No. 16/083,605
Filed by HS PRODCUTS LTD, Leeds (GB)
PCT Filed Mar. 9, 2017, PCT No. PCT/GB2017/050631
§ 371(c)(1), (2) Date Sep. 10, 2018,
PCT Pub. No. WO2017/153758, PCT Pub. Date Sep. 14, 2017.
Claims priority of application No. 1604040 (GB), filed on Mar. 9, 2016.
Prior Publication US 2020/0307990 A1, Oct. 1, 2020
Int. Cl. B68G 9/00 (2006.01); A47C 27/06 (2006.01); B65B 9/04 (2006.01); B65B 63/02 (2006.01); B68G 15/00 (2006.01); F16F 3/04 (2006.01)
CPC B68G 9/00 (2013.01) [A47C 27/062 (2013.01); A47C 27/064 (2013.01); B65B 9/04 (2013.01); B65B 63/022 (2013.01); B68G 15/00 (2013.01); F16F 3/04 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A resilient unit, comprising:
a plurality of spring pairs, wherein:
each spring pair includes an inner spring positioned inside of an outer spring;
for each spring pair, the inner spring is taller than the outer spring;
an array of discrete pockets, wherein each pocket of the array of pockets includes a spring pair of the plurality of spring pairs that is entirely located within the pocket;
a first contiguous sheet of material and a second contiguous sheet of material directly joined together to form the array of discrete pockets, such that each pocket of the array of pockets is bounded by the first sheet and the second sheet
wherein, for each pocket of the array of pockets, when no external forces are applied to the pocket, the first sheet and the second sheet compresses the spring pair included in the pocket and hold the inner spring away from the outer spring so as to prevent contact between the inner spring and the outer spring.