Package making – Methods – Conforming by stretching or shrinking of cover over contents
Patent
1992-12-03
1995-09-12
Culver, Horace M.
Package making
Methods
Conforming by stretching or shrinking of cover over contents
53450, 53 66, 53550, 53557, B65B 5902, B65B 906, B65B 5306, B65B 1934
Patent
active
054488788
ABSTRACT:
A continuously operating machine is provided for wrapping articles with a heat shrinkable plastic film automatically and sequentially. Articles are continuously, transferred along a horizontal pathway to a plurality of processing stations. At a first station, articles are tubularly overwrapped and sealed by a lap sealer or side sealer. Next, the articles are separated one from the other at a second station and at a last succeeding station, the resulting wrapped articles are subjected to thermal film shrinking. The second station comprises a cross head sealer unit which includes a skip seal mechanism thereon for overriding mechanical synchronization of the cross head sealer to the remainder of the machine through a predetermined number of sealings, allowing for packages of greater length to be accommodated, the skip seal mechanism further including a shock absorbing subassembly for smoothing action of the cross head sealer unit, increasing functional longevity of the cross head sealer unit.
REFERENCES:
patent: 2655777 (1953-10-01), Hagen
patent: 3158973 (1964-12-01), Monaghan
patent: 3237371 (1966-03-01), Gerlach
patent: 3328936 (1967-07-01), Billeb
patent: 3438173 (1969-04-01), Omori
patent: 3473288 (1969-10-01), Nakamura et al.
patent: 3477191 (1969-11-01), Davis et al.
patent: 3524301 (1970-08-01), Zimmerman
patent: 3552088 (1971-06-01), Niwa
patent: 3738081 (1973-06-01), Heinzer
patent: 3995407 (1976-12-01), Segale et al.
patent: 4520615 (1985-06-01), Engler et al.
patent: 4549386 (1985-10-01), Wilson
patent: 4553377 (1985-11-01), Klinkel
patent: 4597240 (1986-07-01), Scully
patent: 4608797 (1986-09-01), Shasbtam, Jr. et al.
patent: 4783950 (1988-11-01), Santagati
patent: 4870802 (1989-10-01), Cerf
patent: 4909356 (1990-03-01), Rimondi et al.
patent: 4914889 (1990-04-01), Francioni
patent: 4924657 (1990-05-01), Berti et al.
patent: 4945709 (1990-08-01), Cerf
Brett Edmund D.
Hansen Franck E.
LandOfFree
Shock absorbing skip seal mechanism and method for controlling a does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Shock absorbing skip seal mechanism and method for controlling a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shock absorbing skip seal mechanism and method for controlling a will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-400183