Power Tool With Dust Seal
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Mar 13, 2008
app pub date -
Jun 29, 2005
filing date -
Jun 30, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A power tool having a housing (10,11), a rotation motor and an output shaft (12;112) journalled in the housing (10,11) and adapted to carry a working implement, wherein the housing (10,11) has a neck portion (19) with an annular seal surface (22), and a seal structure (23;123) on the output shaft (12;112) has a clearance surface (24; 124) facing the annular seal surface (22) of the housing (10,11) and being arranged with a narrow gap (25;125) left between the clearance surface (24;124) and the annular seal surface (22) on the housing (10,11) to form a contact free dust barrier intended to prevent foreign particles from entering the housing (10,119), and an air flow path is provided in the housing (10;119) to supply air at the inner periphery of the clearance surface (24;124) thereby generating by centrifugal action an air flow out through the narrow gap (25;125) at rotation of the output shaft (12).
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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