Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1977-08-05
1981-04-14
Bell, James J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
156250, 264154, 428137, 428156, B32B 310, D06N 704
Patent
active
042620490
ABSTRACT:
A deposited sheet of foraminous material (e.g., elastomeric material such as a latex) having a lace-like configuration repeated over the extent of the sheet. This configuration includes relatively open mesh regions, and relatively closed solid petal regions. Portions of the configuration have a substantial plurality of perforated openings per unit area, with the open regions having a greater area of such openings per unit surface area than in the closed regions. At least some of the closed petal regions have a predetermined lesser thickness than the open mesh regions such that the lesser thickness closed regions have a greater surface of elastomeric material per unit area than in the open regions without having a corresponding greater amount of elastomeric material per unit area. Some of the openings bordering said closed regions may be of reduced cross section. Apparatus and method for manufacturing such a sheet are also described.
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patent: 3632716 (1972-01-01), Fairbanks
Bell James J.
Fried Stewart J.
International Playtex, Inc.
Schwab Jeffrey A.
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