Switching mechanism and electric switch using the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 16, 2003
Issued Date -
N/A
app pub date -
Nov 19, 2002
filing date -
Nov 27, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An AC/DC switch for electric power tools avoids bouncing when turned on, but assures quick cutting-off of heavy current. Operation does not vary with age, as might be caused by wearing of projections of the switching mechanism and/or inconsistency in spring material. A reversal spring quickly switches the mechanism on and off so that the movable contacts are brought close to the stationary contacts before the turning-on, thereby permitting the turning-on subsequent to traverse of the reversal point without bouncing of the movable contacts from the stationary contacts, and preventing movement of the movable contacts before reversal spring has stored increased energy, thus allowing quick release of stored energy to make the movable contacts leave the stationary contacts at a speed sufficient to prevent electric arcs between the movable and stationary contacts, and hence prevent the wearing of the contacts.
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