Motorized gate valve for a waste disposal system

Details Motorized gate valve for a waste disposal system Motorized gate valve for a waste disposal system

1986-09-16

1987-09-15

Rosenthal, Arnold

Valves and valve actuation

Electrically actuated valve

Rotary electric actuator

251174, 251328, 4323, F16K 304, F16K 3104

Patent

active

046934472

ABSTRACT:
Gate valve means connected in a waste pipe system have a hollow housing with an inlet and an outlet connected to the waste pipe system. A blade is disposed in the housing at a substantially right angle to the waste pipe system and is selectively movable between a closed position blocking the inlet from the outlet, and an open position allowing waste flow between the inlet and outlet. The blade moves between the open and closed positions and a pair of seals are disposed in the housing in an abutting relationship aligned to receive the blade therebetween when in the closed position and to seal waste flow between the inlet and outlet from the interior of the housing when the blade is in the open position. Each of the pair of seals has a unique design enabling it to mechanically rotate with the blade, thereby limiting wearing forces thereon.

REFERENCES:
patent: 2943706 (1960-07-01), Morgan
patent: 3333816 (1967-08-01), Williams et al.
patent: 3801991 (1974-04-01), Fulton et al.
patent: 4257447 (1981-03-01), Clarkson

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