Tier sheets

Details Tier sheets Tier sheets

1991-07-24

1995-03-28

Loney, Donald J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428156, 428172, 428192, 428409, 428141, B32B 702, B32B 302

Patent

active

054015634

ABSTRACT:
An improved tier sheet and method for producing the same. The tier sheet is suitable for use in conveying receptacles such as cans and bottles with palletizing and depalletizing operations and it can allow the smooth sliding of receptacles in loading and unloading and can avoid the slipping off of receptacles during conveying operation. The tier sheet comprises a first zone having a first frictional resistance and a second zone having a second frictional resistance, wherein the second frictional resistance is lower than the first frictional resistance. The method of the invention comprises a feeding means to feed a tier sheet material, a forming means to form the first zone and the second zone, and a cutting means to cut the formed tier sheet.

REFERENCES:
patent: 3219203 (1965-11-01), Jeramiah
patent: 3776145 (1973-12-01), Anderson
patent: 4367511 (1983-01-01), Crass et al.
patent: 4408365 (1983-10-01), Palmer
patent: 4415618 (1983-11-01), McClung
patent: 4587147 (1986-05-01), Keith
patent: 4614680 (1986-09-01), Fry et al.
patent: 4681401 (1987-07-01), Wyckoft

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