IP Library › Granted Patent US 7,592,921
Granted Patent B2
US 7,592,921 · App. 11/804,957 · Granted Sep 22, 2009

Apparatus for flow detection, measurement and control and method for use of same

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Quick Facts
Patent No.
US 7,592,921
App. No.
11/804,957
Granted
Sep 22, 2009
Kind
B2
Abstract

A system for distinguishing between a fire sprinkler water flow and a domestic use water flow by supplying water to a dwelling through a multipurpose piping system to at least one domestic use and at least one fire sprinkler and providing a means for distinguishing between the fire sprinkler and domestic flow.

Claims (34)

1. A system for distinguishing between a fire sprinkler water flow and a domestic use water flow comprising:

a. a multipurpose piping system coupled to at least one domestic use device and at least one fire sprinkler; and

b. means for distinguishing between the fire sprinkler water flow and the domestic use water flow through the multipurpose piping system.

2. The system of claim 1 , the means for distinguishing including sending an alarm signal when a water flow through the multipurpose piping system exceeds the domestic use water flow.

3. The system of claim 2 , further comprising a pressure gauge communicating with the multipurpose piping system.

4. The system of claim 2 , the means for distinguishing including communicating with a telephone-based remote notification system.

5. The system of claim 1 , further comprising a water softener and a water softener bypass device coupled to the means for distinguishing.

6. A method of detecting a water flow in a multipurpose piping system, the multipurpose piping system having common piping for a fire sprinkler and a domestic use device, the method comprising:

a. supplying water under pressure to the multipurpose piping system; and

b. using a means for distinguishing to distinguish between a fire suppression flow and a domestic flow in the multipurpose piping system.

7. The method of claim 6 , further comprising sending an alarm signal when the water flow exceeds a maximum domestic use.

8. The method of claim 7 , further comprising measuring a water pressure with a pressure gauge in communication with the multipurpose piping system.

9. The method of claim 8 , the means for distinguishing being in communication with a telephone-based remote notification system.

10. The apparatus method of claim 6 , the system including further comprising diverting the water flow to bypass a water softener and a means for bypassing the water softener to provide additional supply for a fire sprinkler water flow.

11. A device, comprising:

means for detecting a flow within a multipurpose piping system; and

means for creating an alarm output when the flow within the multipurpose piping system is a fire protection flow and greater than a maximum domestic flow.

12. The device of claim 11 , the maximum domestic flow having at least one of a K value greater than 3.3, a K value between 3.3 and 4.3, and a K value less than 4.3.

13. The device of claim 11 , the alarm output being provided to at least one of a visible alarm, an audible alarm, a modem, a communication system, a fire department, an emergency contact, and a cutoff valve.

14. A multipurpose piping system communicating with a water supply, the multipurpose piping system comprising;

a. an inflow end coupled to the water supply;

b. a domestic use device mounted on a domestic use end of the multipurpose piping system to provide a water flow at a domestic flow;

c. a fire sprinkler mounted on a fire protection end of the multipurpose piping system to provide the water flow at a fire protection flow; and

d. a sensor monitoring the water flow, the sensor distinguishing between the domestic flow and the fire protection flow.

15. The device of claim 14 , the domestic flow having at least one of a K value less than 3.3, a K value between 3.3 and 4.3, and a K value less than 4.3.

16. The device of claim 14 , the fire protection flow having at least one of a K value greater than 3.3, a K value between 3.3 and 4.3, and a K value greater than 4.3.

17. The system of claim 14 , the sensor providing a signal to at least one of a visible alarm, an audible alarm, a modem, a communication system, a fire department, an emergency contact, and a cutoff valve.

18. A method, comprising:

a. detecting a flow within a multipurpose piping system;

b. maintaining a non-alarm condition when the flow is less than a maximum domestic flow; and

c. activating an alarm output when the flow is a fire protection flow that is greater than the maximum domestic flow.

19. A method, comprising:

a. sensing a flow in a multipurpose piping system at a point between an inflow end of the multipurpose piping system connected to a water supply and a plurality of outflow ends of the multipurpose piping system connected to a domestic use device and a fire sprinkler; and

b. distinguishing between a first condition in which the flow is a domestic flow and a second condition in which the flow is a fire protection flow.

Continuity (8)
Continuation 1117424200 · Jul 1, 2005
Continuation In Part 1088012300 · Jun 30, 2004
Continuation In Part 1011820700 · Apr 9, 2002
Continuation In Part 0999353700 · Nov 6, 2001
Continuation In Part 0956751000 · May 8, 2000
Continuation In Part 0948399900 · Jan 18, 2000
Continuation In Part 0909897600 · Jun 17, 1998
Related Publication 20080224877A1 · Sep 18, 2008