US 12,441,569 B2
Variable tension film dispenser with locking feature
Johannes Blok, Buffalo, NY (US)
Assigned to GLOBAL FILM SOURCE LLC, Edison, NJ (US)
Filed by Johannes Blok, Buffalo, NY (US)
Filed on Oct. 11, 2023, as Appl. No. 18/195,465.
Prior Publication US 2025/0122044 A1, Apr. 17, 2025
Int. Cl. B65H 23/08 (2006.01); B65H 16/00 (2006.01); B65H 75/30 (2006.01)
CPC B65H 23/085 (2013.01) [B65H 16/005 (2013.01); B65H 75/30 (2013.01); B65H 2701/1842 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A device for stopping the release of a wrapping material film from a stretch wrap dispenser comprising:
a flexible skin;
a mandrel or extended core that is placed within said flexible skin;
a locking mechanism that stops said release of said wrapping material film from said stretch wrap film dispenser;
wherein one side of said mandrel is configured to be wedged inside a core of said stretch wrap film;
a second side of said mandrel comprising ridges on outside along length of said mandrel;
said flexible skin comprising ridges on inside of said skin that is configured to lock behind said ridges on said mandrel when said skin is squeezed creating said locking mechanism.