Pneumatic tool having noise reducing muffling structure

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 s...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	DARUWALA, ZUBIN P, BOWEN, GLORIA D, MCCUTCHEON, JEFFREY W, HEGDAHL, DAVID W, SCANLAN, THOMAS J
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING BRAIDING COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDEDFOR COTTON-WOOL DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOTPARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOTOTHERWISE PROVIDED FOR ENGINE PLANTS IN GENERAL FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL HAND TOOLS HEATING KNITTING LACE-MAKING LIGHTING MACHINES OR ENGINES IN GENERAL MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL MANIPULATORS MECHANICAL ENGINEERING NON-WOVEN FABRICS PERCUSSIVE TOOLS PERFORMING OPERATIONS PORTABLE POWER-DRIVEN TOOLS STEAM ENGINES TEXTILES TRANSPORTING TRIMMINGS WADDING WEAPONS
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Beschreibung
Zusammenfassung:	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.