Fluid handling – Liquid level responsive or maintaining systems – By float controlled valve
Reexamination Certificate
2008-05-07
2011-10-11
Hepperle, Stephen M (Department: 3753)
Fluid handling
Liquid level responsive or maintaining systems
By float controlled valve
C137S436000, C137S439000, C137S448000, C251S065000
Reexamination Certificate
active
08033291
ABSTRACT:
A cut-off valve assembly for use with a toilet tank, includes a float within the toilet tank, a water retaining float guide within the toilet tank which allows the vertical travel of the float, the water retaining float guide having weep holes below the lowest travel of the float. The weep holes slowly release the retained water when the water in the tank is below the weep holes, a magnet within the toilet tank, affixed to the bottom of the float, and a magnetically activated cut-off valve for cutting off the water flow to the toilet tank when activated by the magnet. The magnet will activate the magnetically activated cut-off valve when the float is at the lowest travel. A preferred form of the cut-off valve assembly also includes a stem affixed to the float and extending downward from the float. The magnet is affixed to the bottom of the stem, and the magnet is affixed to the float through the stem. In a preferred form, a magnet housing is affixed to the bottom of the stem. The magnet is secured within the magnet housing, and the stem is affixed to the magnet through the magnet housing. In such an arrangement, a guide shaft is located within the water retaining float guide, for guiding the vertical movement of the magnet housing.
REFERENCES:
patent: 3038491 (1962-06-01), Beazley
patent: 3822933 (1974-07-01), Johnson
patent: 6729368 (2004-05-01), Nguyen
patent: 7509973 (2009-03-01), Deive
patent: 2008/0216900 (2008-09-01), Barnham
Hepperle Stephen M
Timmons W. Thomas
Waddy Jonathan
LandOfFree
Magnetically activated cut-off valve assembly does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetically activated cut-off valve assembly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetically activated cut-off valve assembly will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4302286