Push-button switch with momentary-on feature
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 21, 1990
Issued Date -
N/A
app pub date -
Apr 18, 1988
filing date -
Jul 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A miniature push-button switching apparatus having a housing for enclosing a plunger and a rotating ratchet mechanism for engaging and disengaging the switching contacts, the switching apparatus having a 'momentary-on' position for temporarily engaging an electrical load in addition to a 'stable-on' switch position with the ratchet mechanism employing a helical contact spring as a switching contact, the contact spring increasing the active length of the switching contact for significantly reducing possible spring yielding problems and further exhibiting improved resiliency properties which enhance the ratchet switching mechanism and reduce the possibility of spring distortion.
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