Longitudinal seam sealer for polyethylene material

Details Longitudinal seam sealer for polyethylene material Longitudinal seam sealer for polyethylene material

1998-11-06

2000-03-21

Sipos, John

Package making

Progressively seamed cover web or web folds

With closing of web between package units

533759, 533739, 493192, 156499, B65B 906, B65B 5120

Patent

active

060388390

ABSTRACT:
A form-fill-seal machine in which a heated longitudinal seam sealer continuously forms a longitudinal lap seam along lapped edges of the tube being formed. This longitudinal lap seam sealer can be used in machines having conventional cross sealing jaws as well as in machines in which the cross sealing jaws move in the direction of the moving film during the cross sealing operation. The heated longitudinal seam sealer includes a wafer thin internal hot air dispenser that discharges hot air from both surfaces on the surfaces to be fused together. The heated longitudinal seam sealer also includes an external hot air dispenser that includes a plurality of hot air discharge jets through which hot air is discharges on the outer surface of one of the overlapped edges that not only provides necessary heat to cause fusion but also exerts sufficient pressure on the overlapped edge to insure proper sealing.

REFERENCES:
patent: 2405675 (1946-08-01), Southwick, Jr. et al.
patent: 3825408 (1974-07-01), Farfaglia et al.
patent: 3884746 (1975-05-01), Loliger et al.
patent: 4103473 (1978-08-01), Bast et al.
patent: 5816099 (1998-10-01), Saget et al.
patent: 5848517 (1998-12-01), Yamamoto et al.

Affiliated with

Also associated with

Rating

Longitudinal seam sealer for polyethylene material does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-721067