公开(公告)号：US3809179A

公开(公告)日：1974-05-07

申请号：US35216973

申请日：1973-04-18

Applicant: DRESSER IND

Inventor： DELANEY G ,  JONES R

IPC: F01N1/22 ,  F01N3/06

CPC classification number: B25F5/00

Abstract: A muffler for the air exhaust of pneumatic tools to reduce the noise level thereof. Composition of the muffler comprises an abrasive grit distributed on a thin flexible base to which it is secured. An example of the composition is represented by commercially available grades of common emery cloth. Positioning the muffler in a manner affording retention of its flexibility enables sound muffling within an otherwise restrictive exhaust passage with only minimal, if any, adverse effect on operational characteristics of the tool. With this construction it is possible to muffle the exhaust of tools previously regarded as impossible or impractical to muffle satisfactorily because of space limitations ordinarily insufficient to accommodate a muffler device.

Abstract translation: 用于气动工具排气的消声器以降低其噪音水平。 消音器的组成包括分布在其被固定的薄柔性基座上的磨料砂粒。 组合物的实例由市售的普通金刚砂布代表。 以保持其柔性的方式定位消声器使得在另外限制性的排气通道内的声音消声仅对工具的操作特性具有最小的（如果有的话）不利影响）。 利用这种结构，由于空间限制通常不足以容纳消声器装置，所以可以消除先前被认为是不可能的或不切实际的工具的排气。