Sheet metal container making – Method – Forming or treating metallic closure
Patent
1985-04-12
1985-12-03
Gilden, Leon
Sheet metal container making
Method
Forming or treating metallic closure
413 7, 413 14, 413 54, B23P 1102
Patent
active
045563543
ABSTRACT:
Disclosed is a bonded can of the key-opening type comprising a coated metal blank and a seam formed by lap-bonding outer and inner end edge portions of the coated metal blank to each other by a tape of a thermoplastic resin adhesive, wherein the adhesive is a polyamide type or polyester type adhesive, the inner end edge portion forming the seam of the bonded can is completely covered with the adhesive tape, the outer edge portion has a winding-starting tongue piece integrated therewith, a plurality of scores are formed on the outer surface of the coated metal blank from the base of the tongue piece along the entire circumference inclusive of the seam, the scores have a knife angle of 45.degree. to 120.degree. and a depth corresponding to 8 to 45% of the thickness of the metal blank, a coating of an epoxy resin having a thermal softening point of 65.degree. to 150.degree. C. as measured according to the thermomechanical method is formed at least at the seam-forming part on the outer surface and said epoxy resin coating forms a continuous layer adhering closely to the metal blank even in the portion of said scores.
REFERENCES:
patent: 3295485 (1967-01-01), Gedde
patent: 3373895 (1968-03-01), Arfert
patent: 3397661 (1968-08-01), Allman
patent: 3734044 (1973-05-01), Armus
patent: 3736893 (1973-06-01), Coppens
patent: 4048935 (1977-09-01), Beveridge
patent: 4508481 (1985-04-01), Ishibash
Kobayashi Seishichi
Nakazato Seiichi
Nunokawa Atsushi
Tsurumaru Michiko
Ueno Hiroshi
Gilden Leon
Toyo Seikan Kaisha Ltd.
LandOfFree
Process for production of bonded can of key-opening type does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for production of bonded can of key-opening type, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for production of bonded can of key-opening type will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1392550