William J Olson

US Patent:

50002244, Mar 19, 1991

Filed:

Oct 17, 1989

Appl. No.:

7/422662

Inventors:

William C. Olson - Cave Creek AZ
Gregory R. Johnson - Ham Lake MN
Forrest E. Lovett - Menomonie WI

Assignee:

Water Conservation, Inc. - Scottsdale AZ

International Classification:

F16K 3102

US Classification:

13762412

Abstract:

A hydraulically actuated shut-off valve is controlled by a solenoid actuated control valve. A flow detection unit having a substantially vertical inlet and a substantially vertical flow passage has a substantially horizontal outlet connected to the horizontal inlet of the shut-off valve. A member movable by water flowing through the flow passage actuates a switch forming a part of the flow detection unit. A control box preferably mounted on the flow detection unit has a timer and a reset switch therein which are capable of sending electrical control signals to the solenoid actuator of the control valve. The timer senses the condition of the flow detection switch and upon sensing that the switch has been closed a predetermined period of time suggesting abnormal water flow, possibly due to a leak in the system, sends a signal to the solenoid to actuate the control valve to cause the shut-off valve to close, preventing further water flow. The reset switch sends a reverse signal to the solenoid to cause the shut-off valve to open.

Address:

1416 Capstan Dr, Allen, TX 75013

VIN:

1N4AL21E07N422502

Make:

NISSAN

Model:

ALTIMA

Year:

2007