Baths – closets – sinks – and spittoons – Tubs – Particular construction or configuration details
Patent
1975-02-27
1976-11-30
Artis, Henry K.
Baths, closets, sinks, and spittoons
Tubs
Particular construction or configuration details
4 52, 4 57R, 4 61, 4 62, 4 67R, 137445, 251232, E03D 136, E03D 304
Patent
active
039940292
ABSTRACT:
Described herein is a pressure activated fluid control system particularly adapted for use as a flushing mechanism for toilets of the water tank type. The system includes a push-button actuated needle valve assembly which, in the shutoff position, presses against a movable valve seat; a pressure actuated direction flow valve; and a tank ball lifting mechanism. The direction flow valve is in fluid communication with the needle valve assembly and includes a floating piston which upon actuation of the needle valve, allows incoming water under line pressure to pass to the lifting mechanism, raise a lift piston and lift the tank ball from the cistern drain. The tank ball depends from a piston disposed within a water filled lower cylinder and following the draining of the cistern, the tank ball slowly and precisely returns to the cistern drain as the water below the piston head within the lower cylinder passes from the cylinder through a check valve disposed about the piston rod. A float is connected to the needle valve to close the valve upon refilling of the cistern and prevent further fluid flow to the lifting mechanism.
REFERENCES:
patent: 2341116 (1944-02-01), Owens
patent: 2591975 (1952-04-01), Southwick
patent: 2644952 (1953-07-01), Boyd
patent: 2740129 (1956-04-01), Braswell, Jr.
patent: 2744262 (1956-05-01), Boyd
patent: 2838765 (1958-06-01), Hosking
patent: 2867820 (1959-01-01), Gray
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