Manufacturing container or tube from paper; or other manufacturi – Assembling or disassembling of distinct members – Comprising bringing two members together
Patent
1985-01-31
1988-10-04
Schmidt, Frederick R.
Manufacturing container or tube from paper; or other manufacturi
Assembling or disassembling of distinct members
Comprising bringing two members together
493217, 493413, 493451, B31B 3952, B65H 45107
Patent
active
047753595
ABSTRACT:
A method for folding a tube into radially superimposed accordian pleats in which the tube is first placed in tubular form and clamped against radial and longitudinal movement at circumferentially spaced zones adjacent an open end of the tube. A first annular band of the tube is then forced radially outwardly and longitudinally to a position radially outwardly of the clamped zones, and is connected by a bight to the remainder of the tube, a part of which forms a second annular band lying radially outwardly from the first band. The two annular bands and the part of the tube containing the spaced zones are then clamped against radial and longitudinal movement, and a series of additional pairs of bands are then sequentially formed radially outwardly from the second band in the same way that said first and second bands are formed, with periodic clamping of all of said bands against radial and longitudinal movement occurring after each additional pair of bands is formed. The invention is also directed to an apparatus for placing radially superimposed accordian pleats in a tube which includes a forming structure to hold the tube in a distended tubular form while it is alternately contacted by a series of clamping fingers and a series of pleat folding fingers, which latter fingers function to move sections of the bag radially outwardly and longitudinally into a configuration constituting radially superimposed bands.
REFERENCES:
patent: 3279784 (1966-10-01), Schwendinger
patent: 4106398 (1978-08-01), Buisson
patent: 4265439 (1981-05-01), Sundberg
patent: 4424051 (1984-01-01), Lee et al.
Poly Farm, Inc.
Rand Farm Systems Inc.
Schmidt Frederick R.
Terrell William E.
LandOfFree
Bag and tube folding method and apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bag and tube folding method and apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bag and tube folding method and apparatus will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2154234