Seismic safety cutoff switch
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 4, 1980
Issued Date -
N/A
app pub date -
Aug 25, 1978
filing date -
Nov 26, 1976
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A seismic safety cutoff device responsive to external forces such as earthquakes, for use with an electrical switch for controlling the flow of electricity, including a housing adaptable to a switch mechanism having a spring-biased control stem, the safety cutoff device also having a substantially vertically-mounted rod which is pivotable near its upper end to permit movement in any horizontal direction of a weight at its lower end for releasing the spring-biased stem upon it's deflection by an external force. A stem-positioning member is connected to the control stem and extends outward through the housing for easy visual inspection and for ease of re-setting the device after being tripped by an external force.
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