Title: Method and apparatus for transforming by pressing voluminous material into bales

Abstract: Disclosed is a method and apparatus for pressing and binding voluminous material into bales, in which material in the form of several layers is supplied through a closable opening into a pressing chamber where compression takes place of each supplied layer. Final pressing is carried out at high pressure after a desired number of layers have been supplied into the pressing chamber, whereafter the pressing effect is lowered to a substantially lower pressure, so that the material compressed into a bale is permitted to expand, and the bale thereafter is discharged from said pressing chamber through a closable opening and bound while said substantially lower pressure is being maintained.

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Inventors: Stromberg, Nils E. (Sundsvall, SE)

Application Number: 897121
Filing Date: 1978-04-17
Publication_date: 1979-07-31
Assignee: Sunds Aktiebolag (Sundsvall, SE)
Primary Class(es): 53/438 53/502, 53/529, 100/3, 100/35, 100/99, 100/207, 141/12, 141/71
Other Classes:
US Patent Ref:

2869296	Jan, 1959	Overman	53/438.
3795084	Mar, 1974	Richardson et al.	53/529.

Other Refs:
Primary Examiner: McGehee, Travis S.
Assistant Examiner:
Attorney: Lerner, David, Littenberg & Samuel