Package making – Closing packages and filled receptacles – By means adapted to engage outturned seam of package cover
Patent
1996-03-01
1998-03-03
Moon, Daniel
Package making
Closing packages and filled receptacles
By means adapted to engage outturned seam of package cover
53 75, 53550, 53562, 156465, B65B 906
Patent
active
057222150
ABSTRACT:
A sealing device which can form pouches with different widths, which is small in size, and which can minimize the waste of sheet material. To reduce the size of the device, a pair of second rotary shafts each carrying a longitudinal heating member having a cylindrical heating surface for feeding a two-folded packing sheet and sealing its side edges by coming into contact with the sheet are mounted on a pair of rotary shafts provided in the feed path of the sheet and each carrying a lateral heating member having an axial heating surface adapted to laterally contact the sheet and a surface not in contact with the sheet. To form a pouch from the sheet, the first rotary shafts are rotated by a first rotary drive unit to laterally seal the sheet by pressing the lateral heating members. Then, the side edges of the sheet are sealed by rotating the longitudinal heating members by rotating the second rotary shafts with a second rotary drive unit. By adjusting the feed distance of the sheet, it is possible to form pouches with different widths. With this arrangement, it is possible to form any narrow pouches. Thus, it is possible to minimize the waste of sheet material.
REFERENCES:
patent: 2208951 (1940-07-01), Tamassy
patent: 2248471 (1941-07-01), Stroop
patent: 2348201 (1944-05-01), Barnett
patent: 2626494 (1953-01-01), Lewis
patent: 2889671 (1959-06-01), Weisman
patent: 2994996 (1961-08-01), Klar
patent: 3074214 (1963-01-01), Schneider et al.
patent: 3439469 (1969-04-01), Van Mil
patent: 3546849 (1970-12-01), Zimmerman
patent: 3838552 (1974-10-01), Hooley et al.
patent: 3850780 (1974-11-01), Crawford et al.
LandOfFree
Sealing device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Sealing device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sealing device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2239163