发明名称 |
Apparatus for cutting a web of sheet material |
摘要 |
A moving web of material having a high tendency to elongation under stress, such as woven and non-woven plastic fiber or filament webs, is cut by the combined action of a cutting knife which executes its cutting stroke generally in line with and upstream of the web and a grab knife which holds the web at a station spaced closely downstream from the path of the cutting knife and thereby isolates the small length of web between the two knives while the cutting knife completes its stroke.
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申请公布号 |
US4007656(A) |
申请公布日期 |
1977.02.15 |
申请号 |
US19750639988 |
申请日期 |
1975.12.11 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
ERDODY, ROBERT G.;HARMON, PAUL E.;TETRO, RICHARD S. |
分类号 |
B26D7/14;B26F3/02;(IPC1-7):B26D7/14 |
主分类号 |
B26D7/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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