Suction relief apparatus

Details Suction relief apparatus Suction relief apparatus

1997-03-24

1998-10-20

Eloshway, Charles R.

Baths, closets, sinks, and spittoons

Pool type

Construction details

4509, 45412, 137526, 137907, E04H 412

Patent

active

058228071

ABSTRACT:
A suction relief apparatus for relieving suction at a suction connection of a swimming pool or spa having a main valve member movable from an open to a closed position to relieve suction at the suction connection in the event of a blockage of the suction connection in the pool. The main valve remains closed until a reset valve is opened, at which time a spring returns the main valve to the open condition, enabling suction to resume at the suction connection of the pool. A switch responsive to increased suction indicative of an obstruction may be utilized to deactivate a suction pump motor. In an alternative embodiment, a frangible member may replace the main valve and reset valves to open a connection to ambient air atmosphere in the event of increased suction in the suction line resulting from an obstruction at the suction connection in the pool.

REFERENCES:
patent: 2590918 (1952-04-01), Barnes
patent: 3801992 (1974-04-01), Sable
patent: 4115878 (1978-09-01), Johnson et al.
patent: 4620835 (1986-11-01), Bell
patent: 5167041 (1992-12-01), Burkitt, III
patent: 5351709 (1994-10-01), Vos
patent: 5570481 (1996-11-01), Mathis et al.
patent: 5682624 (1997-11-01), Ciochetti
patent: 5725359 (1998-03-01), Dongo et al.

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