Heating device for sealing material to effect different bond str

Adhesive bonding and miscellaneous chemical manufacture – Surface bonding means and/or assembly means therefor – Presses or press platen structures – per se

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

53450, 53451, 493197, 493202, 493203, B30B 1534

Patent

active

047356758

ABSTRACT:
The present invention is used to heat seal seams, and the like, of item holding means such as plastic bags holding loose fill product like beans, hard candy, pretzels, potato chips, etc. The heating station of the present invention has at least two independently controlled heating positions in each half of a pair of jaws and each heating position is heat insulated from the other and each respectively can provide different amounts of heat to material coming in contact therewith. Accordingly, the bonded areas of item holding means can be manipulated to control local package characteristics, i.e., sealed to have a stronger bond strength at one location that at another location, adjust tear properties to suit marketing methods (such as hole punched top seals) and to control seal integrity.

REFERENCES:
patent: 2257823 (1941-10-01), Stokes
patent: 2385897 (1945-10-01), Waters
patent: 2430995 (1947-11-01), Roos
patent: 2442936 (1948-06-01), Rohdin
patent: 2648463 (1953-08-01), Scherer
patent: 2743761 (1956-05-01), Snyder et al.
patent: 2835433 (1958-05-01), Swartz et al.
patent: 3314591 (1967-04-01), Cheeley
patent: 3579397 (1971-05-01), Schwarzkopf
patent: 3679871 (1972-07-01), Evalds
patent: 4288965 (1981-09-01), James

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Heating device for sealing material to effect different bond str does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heating device for sealing material to effect different bond str, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heating device for sealing material to effect different bond str will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2231821

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.