Closing plastics containers

Details Closing plastics containers Closing plastics containers

1987-09-09

1989-06-13

Coan, James F.

Package making

Methods

Gas filling and/or evacuating and closing

53425, 53478, B65B 728

Patent

active

048380083

ABSTRACT:
Thermally processable plastics tubs (10) filled with a liquid or semi-liquid product so as to leave a headspace are closed by preformed lids (12) which are heat-sealed to their peripheral flanges when the headspace is filled with steam. In order to prevent the steam from affecting the heat-sealing operation, the lid flanges are wider than the container flanges, and their projecting annular parts (29) are engaged so as to form a barrier separating the steam from the heated heat-sealing head.

REFERENCES:
patent: 2519353 (1950-08-01), Cassady
patent: 3289383 (1966-12-01), Foss
patent: 3517475 (1968-04-01), Balocca
patent: 3545163 (1970-12-01), Mahffy et al.
patent: 3714758 (1973-02-01), Vogeleer
patent: 4424659 (1984-01-01), Perigo et al.

Affiliated with

Also associated with

Rating

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

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1267452