Vibration detector
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 11, 1983
Grant Date -
N/A
app pub date -
Jul 3, 1980
filing date -
Jul 11, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A vibration detector of the seismic system comprises a weight member; a support frame; at least two weight supporting members, each of the supporting members being fixed to the weight member at one end thereof and being substantially fixed to the support frame at one portion thereof in detecting the vibration; and a member for substantially fixing one portion to the support frame in detecting the vibration; wherein the weight member is vibratively supported by the tension of the supporting members, and at least a part of one of the supporting members is formed by a piezoelectric polymeric substance having a pair of vibration detecting electrodes, the part being at a position between the fixed end and one substantially fixed portion of the supporting member.
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