Sound reduction apparatus for pneumatic type nailing machine

Details Sound reduction apparatus for pneumatic type nailing machine Sound reduction apparatus for pneumatic type nailing machine

1995-11-07

1997-10-14

Smith, Scott A.

Elongated-member-driving apparatus

With means to move or guide member into driving position

Including supply magazine for constantly urged members

B25C 104

Patent

active

056763000

ABSTRACT:
A sound reduction apparatus for a pneumatic type nailing machine in which a driving piston is driven by compressed air to drive a nail and the compressed air is exhausted from an exhaust port after driving is provided. The sound reduction apparatus includes a sound reduction chamber configured for receiving the compressed air from the exhaust port and exhausting the air after driving. The sound reduction chamber includes a wall defining a plurality of exhaust slits extending circumferentially about the sound reduction chamber. The exhaust slits are constructed and arranged to exhaust the compressed air from the sound reduction chamber in a substantially laminar flow thereby reducing an intensity of exhaust sound.

REFERENCES:
patent: 4380313 (1983-04-01), Klaus et al.
patent: 4407390 (1983-10-01), Le Blanc, Jr.
patent: 4609135 (1986-09-01), Elliesen
patent: 4773581 (1988-09-01), Ohtsu et al.
patent: 5423469 (1995-06-01), Armstrong

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