Double sided lamination machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 18, 1992
Issued Date -
N/A
app pub date -
Oct 2, 1990
filing date -
Feb 19, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A laminating system includes a pair of pull rollers (18) for drawing laminating film (12) from supply rolls, over preheat rollers (30) and through a pair of heated laminating rollers (14). A motor (124) connected to a driver sprocket (128) drives a driven sprocket (132) connected to one of the pull rollers (18). A second sprocket (214) is connected to the pull roller (18) by a one-way bearing (220) and is coupled to a sprocket (210) attached to one of the lamination rollers (14). The ratios of the sprockets are set such that if the lamination roller (14) are rotating properly, the laminate product (112) drives them and the coupled pull roller sprocket (214) free-wheels. And, if the lamination rollers (14) slow down their rotational speed, the bearing (220) and the abutting second pull roller sprocket (214) engage, lock and drive the lamination roller sprocket (210) and lamination rollers (14).
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