Microperforator

Details Microperforator Microperforator

1986-05-22

1987-05-26

Schran, Donald R.

Cutting

With means to control or modify temperature of apparatus or...

Of tool

83660, 83 16, B26F 124

Patent

active

046675523

ABSTRACT:
A sheet film perforator utilizes a plurality of heated pins projecting from a rotating cylinder to perforate film being drawn across the rotating cylinder. The pins are heated by multiple heat sources including a central heating element for heating the rotating cylinder from the inside and surface heaters mounted adjacent the pins to heat the pins from the outside and maintain a controlled pin temperature during the perforation operation. A heat shield is provided to syncronously be positioned when a pressure roll brush retractor removes film from engagement with the hot pin perforation roller. Perforation dimensions may be controlled through the use of micro adjusting means for controlling hot pin penetration into the film.

REFERENCES:
patent: 2748863 (1956-06-01), Benton
patent: 3227854 (1966-01-01), Ramsey et al.
patent: 3546742 (1970-12-01), Kugler
patent: 3707102 (1972-12-01), Huppenthal et al.
patent: 3718059 (1973-02-01), Clayton
patent: 4098159 (1978-07-01), Rothfuss

Affiliated with

Also associated with

Rating

Microperforator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Microperforator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microperforator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-696079