Pneumatic tool having noise reducing muffling structure
US5418339A · kind A · utility
29Cited by
21References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1994 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Jul 18, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S173/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.