Insulating composition
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 3, 1981
Grant Date -
N/A
app pub date -
Jul 30, 1979
filing date -
Jul 30, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There are disclosed apparatus and methods for incorporating feathers and downs into synthetic fiber. In one embodiment, raw polyester staple is processed into batting by a garnetting machine or the like, after which a quantity of natural feathers and downs is securely implanted in the polyester fiber using an impregnation device. The polyester sheets containing the impregnated plumage may then be folded and cut to the required size and thickness for further use.
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Cited Art Landscape
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