Spa pressure sensing system capable of entrapment detection
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 8, 2001
Grant Date -
N/A
app pub date -
Jul 15, 1999
filing date -
Jul 15, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A control circuit for use with a spa system includes a pressure sensor which generates a signal representative of the pressure in the system. A microcontroller is coupled to receive the signal from the sensor and is configured to store a first pressure level. The microprocessor compares the first pressure level with the subsequently measured pressure level and generates a control signal if the comparison indicates a change in pressure which exceeds a predetermined amount. An electronically controlled switch is coupled to receive the control signal from the microcontroller and turn electrical power to the pump off in response thereto.
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