Inventors:
Thurman F. Hodge - Woodland Park CO, US
Benjamin Grill - Woodland Park CO, US
Oded Eddie Sturman - Woodland Park CO, US
Assignee:
Enginuity, Inc. - Woodland Park CO
International Classification:
F16K 31/11, F16K 31/08, F16K 17/00
US Classification:
137456, 251 65, 25112903, 1374875
Abstract:
Fluid sensing shut-off devices with timer and methods of operation to shut off fluid flow if a primary shutoff valve sticks in the on condition. An embodiment is disclosed using a microphone to sense fluid flow, with a microprocessor periodically awakening from a sleep mode to power the sensor and determine if there is flow. If there is flow, the microprocessor times flow, and if flow is not shut off within a predetermined length of time, the microprocessor shuts off the valve. The valve itself normally held in a magnetically latched, valve open state, but may be unlatched by a current pulse to close the valve. Various embodiments and applications are disclosed.