Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Patent
1994-04-15
1996-05-21
Simmons, David A.
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
156353, 156360, 156361, 493 11, 493 29, 493202, 493208, B32B 3100
Patent
active
055185592
ABSTRACT:
A plastic bag making machine includes a cylindrical drum with a variable diameter. A plurality of seal bars define the circumference of the drum, and are substantially parallel to the drum's rotational axis. A controller determines the distance between registration marks on the film using the output of an encoder as a position signal, and adjusts the diameter of the drum in response to the determined distance. The controller also determines the position of the seal bars relative to the registration marks and adjusts the diameter of the drum in response to the relative position. A downstream device includes a perforation to seal registration controller with a registration control input. The controller provides a control signal to the registration control input in response to changes in the diameter of the drum.
REFERENCES:
patent: 3360416 (1967-12-01), Cochrane
patent: 3607550 (1971-09-01), Ballanger
patent: 3703590 (1972-11-01), Holler et al.
patent: 4192705 (1980-03-01), Wech
patent: 4216705 (1980-08-01), Achelpohl et al.
patent: 4261779 (1981-04-01), Wech
patent: 4380446 (1983-04-01), Dickson et al.
patent: 4549917 (1985-10-01), Jensen, Jr.
patent: 4581083 (1986-04-01), Schultz et al.
patent: 4618391 (1986-10-01), Torti et al.
patent: 4642084 (1987-02-01), Gietman, Jr.
patent: 4712357 (1987-12-01), Crawford
patent: 4795513 (1989-01-01), Jensen, Jr.
patent: 4934993 (1990-06-01), Gietman, Jr.
patent: 5000725 (1991-03-01), Bauknecht
patent: 5000812 (1991-03-01), Murphy
patent: 5009740 (1991-04-01), Yanai
patent: 5017257 (1991-05-01), Murphy
patent: 5094556 (1992-03-01), Kohler
patent: 5292299 (1994-03-01), Anderson et al.
Gietman, Jr. Peter
Saindon Stephen A.
CMD Corporation
Rivard Paul M.
Simmons David A.
LandOfFree
Method and apparatus for registration of a seal on a plastic bag 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 registration of a seal on a plastic bag, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for registration of a seal on a plastic bag will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2035023