US 12,325,547 B2
Seal and cut assembly for heat sealing machine
Marvin Levan, Steward, IL (US)
Assigned to TOPPAN Packaging Americas Holdings, Inc., Charlotte, NC (US)
Filed by Sonoco Development, Inc., Hartsville, SC (US)
Filed on Apr. 9, 2024, as Appl. No. 18/630,780.
Application 18/630,780 is a division of application No. 17/522,639, filed on Nov. 9, 2021, granted, now 11,981,471.
Claims priority of provisional application 63/111,539, filed on Nov. 9, 2020.
Prior Publication US 2024/0253843 A1, Aug. 1, 2024
Int. Cl. B65B 61/06 (2006.01); B29C 65/18 (2006.01); B29C 65/48 (2006.01); B65B 7/28 (2006.01); B65B 9/04 (2006.01); B29L 31/00 (2006.01)
CPC B65B 61/06 (2013.01) [B29C 65/18 (2013.01); B29C 65/4835 (2013.01); B65B 7/2878 (2013.01); B65B 9/045 (2013.01); B29L 2031/7164 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method for heat sealing a blister package comprising:
extending a backing material web between a nesting tray assembly and a seal and cut tooling assembly of a heat sealing machine, wherein a blister tray of the blister package is resident within a blister nest of the nesting tray assembly, wherein the seal and cut tooling assembly is mounted below a heater assembly of the heat sealing machine with a heat seal block of the heater assembly extending downward through a heat seal block opening of the seal and cut tooling assembly;
clamping the backing material web between a clamping gasket support shoulder of the nesting tray assembly and a clamping shoulder of the seal and cut tooling assembly;
clamping the backing material web between a sealing gasket support shoulder of the nesting tray assembly and a heat seal shoulder of the heat seal block, wherein the clamping gasket support shoulder and the sealing gasket support shoulder define a knife slicing groove therebetween; and
extending a knife of the seal and cut tooling assembly between the clamping gasket support shoulder and the sealing gasket support shoulder and into the knife slicing groove to cut a backing sheet of the blister package from the backing material web.