High output smoke and heat detector alarm system utilizing a piezoelectric transducer and a voltage doubling means
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
-
May 19, 1981
Grant Date -
N/A
app pub date -
Jul 3, 1978
filing date -
Jul 3, 1978
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A high output smoke and heat detector alarm system comprises a high output audible alarm means which includes a piezoelectric transducer and a voltage doubling means in combination with an improved smoke and heat detector which includes a low voltage power supply source, an ambient temperature detecting means, at least one ionization sensing chamber, a voltage amplitude comparing means, and a low voltage sensing means.
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