Electric tool
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
May 15, 2003
app pub date -
Jun 11, 2002
filing date -
Nov 12, 2001
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
To provide a cordless electric tool promoting a fastening function or a cutting function by facilitating to control a rotational number of a motor from a low speed region to a high speed region, reducing generation of vibration or noise and achieving small-sized formation and light-weighted formation, there is provided a cordless electric tool constituted by a brushless direct current motor 3, an output shaft 5 connected to the brushless direct current motor 3 via a speed changing device 4, a motor driving circuit 7 and a control portion 8 of the driving circuit and using a charge type battery 11 as a drive power source.
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