Pneumatic fastener driving tool having air exhaust arrangement
US5927584A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 2, 1998 |
| Grant date | Jul 27, 1999 |
| Priority date | — |
| Expiry date | Apr 2, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S173/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A compressed air exhaust arrangement in a pneumatic fastener driving tool. An exhaust port is formed in an upper portion of a main body, and a cover member is fixed onto the upper portion. An annular muffler member is disposed between the cover member and an upper surface of the main body to surround the exhaust port. The cover member has a lower surface formed with a plurality of cranked grooves for providing a plurality of air vent passages relative to an upper surface of the muffler member. The air vent passage allows the compressed air from the exhaust port to pass therethrough toward an atmosphere. Before freeze of the muffler member, most of the compressed air discharged through the exhaust port directly passes through the muffler member. After freeze of the muffler member, the compressed air passes through the air vent passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.