Safety suction assembly for use in whirlpool baths and the like

Details Safety suction assembly for use in whirlpool baths and the like Safety suction assembly for use in whirlpool baths and the like

1994-12-12

1996-03-19

Phillips, Charles E.

Baths, closets, sinks, and spittoons

Tubs

Means for agitating or circulating water in a tub

4504, 417151, 417160, A47K 300, E04H 412

Patent

active

054994063

ABSTRACT:
A suction assembly employs an air induction tube to induct air into the recirculating water pump to cause the pump to cease pumping operation when the front face of the assembly is blocked. The induction tube is connected to a bleed path formed between the induction tube and a surrounding coaxial face tube extended into the assembly from the front face. When the face is blocked by hair or the like, water in the induction tube bleeds into the main chamber of the assembly and empties the induction tube. Air is then pulled into the pump, causing the pump to lose prime thereby reducing pump pressure to zero and allowing the hair or other blocking material to be removed.

REFERENCES:
patent: 4115878 (1978-09-01), Johnson et al.
patent: 4602391 (1986-07-01), Shepherd
patent: 5167041 (1992-12-01), Burkitt
patent: 5347664 (1994-09-01), Hamza et al.

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