Plastic and nonmetallic article shaping or treating: processes – With severing – removing material from preform mechanically,... – Forming continuous work followed by cutting
Patent
1981-01-14
1982-07-27
Thurlow, Jeffery R.
Plastic and nonmetallic article shaping or treating: processes
With severing, removing material from preform mechanically,...
Forming continuous work followed by cutting
264153, 264156, 264163, 264167, 264284, 425291, 425298, 425377, 425DIG37, 425DIG109, B29C 1708
Patent
active
043417272
ABSTRACT:
The manufacture of perforated vinyl strips by feeding the strip material continuously without interruption to a punching apparatus that has two pairs of cooperative rotary dies that punch out closely spaced perforations with the first pair of dies scoring the perforations and the second pair punching out the perforations.
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Barnes Thomas E.
Landsness Clifford A.
Rinker William R.
White Maurice E.
Januszkiewicz Joseph
The B. F. Goodrich Company
Thurlow Jeffery R.
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