Method and apparatus for folding and welding the marginal edges

Details Method and apparatus for folding and welding the marginal edges Method and apparatus for folding and welding the marginal edges

1979-03-29

1980-12-16

Goolkasian, John T.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

69 21, 69 33, 156273, 156380, 156479, 428121, 493133, 493162, 493189, B32B 304, B31B 152

Patent

active

042395720

ABSTRACT:
A cover sheet is disposed over a recess in a work table. A folding apparatus, including an edge folder and edge erector is disposed over the recess and lowered until the edge erector is in the recess. The edge erector includes horizontally movable plates which are moved outwardly against the edges of the recess to erect the marginal edges of the sheet. The edge folder has downwardly depending, horizontally moving members. The edge folder is lowered until the members touch the work table after which the members are moved inwardly to fold the erected marginal edges of the sheet horizontally over the plates. The plates are then withdrawn while the edge folder members are maintained in contact with the folded marginal edges, and high frequency heat applied to weld the folded marginal edges to the sheet. After the welding is completed the edge erector and edge folder are raised to their initial position and the members are returned to their outward positions.

REFERENCES:
patent: 1894592 (1933-01-01), Kilmer
patent: 3101602 (1963-08-01), Tosi
patent: 3147172 (1964-09-01), Wesa et al.
patent: 4019944 (1977-04-01), Tomita

Affiliated with

Also associated with

Rating

Method and apparatus for folding and welding the marginal edges does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for folding and welding the marginal edges , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for folding and welding the marginal edges will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-606368