B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
154/142, 93/72,
B32B 7/02 (2006.01) B31D 5/00 (2006.01)
Patent
CA 1289928
ABSTRACT OF THE DISCLOSURE A mechanism and method for producing relatively low density pad-like cushioning dunnage product from sheet-like stock material. The mechanism takes the sheet-like stock material from a multi-ply roll thereof and changes it into a pad-like cushioning dunnage product having lateral pillow-like portions connected together along the generally central portion of the product. The mechanism includes a converging member which in conjunction with a forming frame coacting with the converging member, causes inward rolling of the lateral edges of the stock material into generally rolled form which is then adapted to be received in a connector operable to connect the rolled edge stock material forming the pillow-like portions, into the pad-like cushioning dunnage product. A novel separating mechanism for separating the sheets of stock material as they move from the stock roll toward the forming frame and the converging member is provided, together with a transversely extending roller disposed ahead of the separating mechanism whereby the point of commencement of entry of the multi-ply sheet-like stock material toward the separating mechanism remains constant irrespective of the diameter of the stock roll. A novel alternate, multi-ply stock roll com- prising a thicker gauge but lesser width web with a plurality of wider webs or sheets is also provided. The idea is to generally improve the con- struction of the dunnage producing mechanism, and to improve its operation as well as to provide a pad-like dunnage product possessing substantial resiliency per unit volume, and which is securely attached along the abutting rolled edges of the pillow-like portions of the produced cushioning product, so that the pad- like material tends to more positively remain in pad-like form during its use as a packing.
521608
Armington Raymond Q.
Komaransky Anthony J.
Macrae & Co.
Ranpak Corp.
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