Stock material or miscellaneous articles – Sheet – web – or layer weakened to permit separation through...
Patent
1991-05-30
1992-11-17
Van Balen, William J.
Stock material or miscellaneous articles
Sheet, web, or layer weakened to permit separation through...
428 40, 428131, 428137, 428138, 428159, 428167, 428172, 428213, 4283144, 4283171, 4283173, 428352, B65D 6528, B32B 300
Patent
active
051642387
ABSTRACT:
A masking member presented herein comprises a sheet of a polystyrene foam provided with cutting guide lines so that said masking member consists of a plural number of units of the masking members surrounded with said cutting guide lines wherein said cutting guide lines are discontinuous and consist of a number of small grooves or short penetrating lines or small penetrating holes wherein the total length of said grooves or lines or holes is 20 to 80% of the length of said cutting guide lines. When said masking member is used, said sheet is easily and correctly broken along said cutting guide lines by hand to a piece consisting of one or more units of the masking member to have a proper size and shape corresponding with a part of an article which is necessary to be protected from a surface treatment.
REFERENCES:
patent: 4759959 (1988-07-01), Guy
patent: 4764421 (1988-08-01), Horiki et al.
patent: 4822650 (1989-04-01), Horiki et al.
patent: 4835026 (1989-05-01), Horiki et al.
patent: 4913786 (1990-04-01), Horiki et al.
Horiki Seinosuke
Ito Kuninori
Makino Reiji
Nagoya Oilchemical Co., Ltd.
Van Balen William J.
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