Solid state temperature dependent direct voltage interrupter for a heater circuit
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 19, 1991
Grant Date -
N/A
app pub date -
Jun 2, 1989
filing date -
Jun 2, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A temperature limiting device for connection across a common heater which senses the critical temperature of the heater to trip circuit breakers and thereby disrupt power to the heater when the critical temperature exceeds a predetermined value. The device includes an SCR or triac connected across power lines to the heater and which is triggered by a comparator monitoring the output of an integrator circuit. The input to integrator circuit is connected to the output of a thermocouple device. Upon the critical temperature of the heater exceeding the predetermined value as determined by the integrator and comparator circuits the SCR or triac is fired so as to short the voltage lines and thereby open the mechanically resettable circuit breakers.
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