The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 02, 2005
Filed:
Nov. 25, 2002
Anders Urban Jansson, Älvsjö, SE;
Mikael John Nordström, Johanneshov, SE;
Ulf Michael Stenberg, Djurhamn, SE;
Anders Urban Jansson, Älvsjö, SE;
Mikael John Nordström, Johanneshov, SE;
Ulf Michael Stenberg, Djurhamn, SE;
Atlas Copco Tools AB, Nacka, SE;
Abstract
A pneumatic power tool comprises a housing () with a motor and a pressure air inlet passage () and an exhaust air outlet passage () both extending through the housing () and communicating with the motor, wherein the outlet passage () is provided with sound attenuating elements () formed in a highly porous resinous material and arranged to be penetrated by the exhaust flow for exhaust noise reduction, and an exhaust flow diverting deflector () mounted at the outlet end of the outlet passage () and comprising a shell like body () with a cylindrical neck portion () rotatively received in the outlet passage (), a concave flow guiding surface (), and two parallel inner walls () forming between them a main flow passage () and between them and the shell body () two narrow secondary flow passages () for accomplishing noise dampening low velocity air flow shields on both sides of the main flow.