Sound-proofing casing for a pneumatic percussive drill
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 25, 1986
Grant Date -
N/A
app pub date -
Nov 2, 1984
filing date -
Nov 10, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The internal absorbent layer (9) of the casing delimits an internal volume (10) around the drill (1), which volume is divided on either side of the exhaust orifice (3) by two transverse partitions (13A, 13B) into three successive expansion chambers (11A, 11B, 11C) between the exhaust orifice (3) and the outlet opening (12) to the air outside the casing.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully