Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent
1994-07-18
1995-05-23
Gellner, M. L.
Acoustics
Sound-modifying means
Muffler, fluid conducting type
F01N 300
Patent
active
054183391
ABSTRACT:
The present invention relates to a pneumatic tool having superior sound muffling performance. The pneumatic tool has an exhaust port, wherein a sound muffling structure comprising a nonwoven web of fibers coated with a binder resin, is fitted in said exhaust port to seal said exhaust port, wherein said fibers have diameters of about 30 to about 100 microns and wherein the web has a compression resistance energy of about 0.09 to about 0.14 Joules.
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Bowen Gloria D.
Daruwala Zubin P.
Hegdahl David W.
McCutcheon Jeffrey W.
Scanlan Thomas J.
Dang Khanh
Dowdall Janice L.
Gellner M. L.
Griswold Gary L.
Kirn Walter N.
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