Apparatus for severing and heat sealing sheets of thermoplastic

Details Apparatus for severing and heat sealing sheets of thermoplastic Apparatus for severing and heat sealing sheets of thermoplastic

1985-07-03

1988-08-30

Simmons, David

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

83 18, 83175, 156229, 156251, 156494, 1565832, 156515, B31B 116

Patent

active

047674822

ABSTRACT:
Apparatus for simultaneously severing and heat sealing of overlapping portions of thermoplastic sheets between a fixedly mounted anvil and a reciprocable heated blade has an uncooled hold down device with two metallic plate-like members which flank the blade and are confined in layers of silicone so that they are thermally insulated from the blade and need not come in direct contact with the thermoplastic material. Those portions of the silicone layers which contact the exposed side of the adjacent sheet opposite the anvil at the respective sides of the blade tend to stretch the sheets in a direction at right angles to the cutting plane to thus ensure immediate separation of the welded seams which are formed by the blade during severing of the sheets.

REFERENCES:
patent: 2570273 (1951-10-01), Dryor
patent: 3640790 (1972-02-01), Rowley
patent: 3803963 (1974-04-01), Hunt
patent: 3805485 (1974-04-01), Swope
patent: 3912575 (1975-10-01), Zelnick
patent: 3940305 (1976-02-01), Stenberg
patent: 3954371 (1976-05-01), Hutt et al.
patent: 4019947 (1977-04-01), Stock et al.
patent: 4488466 (1984-12-01), Jones

Affiliated with

Also associated with

Rating

Apparatus for severing and heat sealing sheets of thermoplastic does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for severing and heat sealing sheets of thermoplastic , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for severing and heat sealing sheets of thermoplastic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2086322