Gas separation – With nonliquid cleaning means for separating media – With automatic control of cleaning means
Patent
1995-03-27
1997-02-18
Bushey, C. Scott
Gas separation
With nonliquid cleaning means for separating media
With automatic control of cleaning means
15352, 55298, 55300, 55304, 55337, 95282, B01D 4100
Patent
active
056037406
ABSTRACT:
A suction source is connected to the upper end of a vertical suction tube; a plug member slides upwardly within the tube under the action of the suction source and moves down by gravity when the suction source is cut off The suction tube has a bypass port above the plug member and a valve is operated by the movement of the plug member to close and open the bypass port when the plug reaches its lower and upper limit positions respectively. Therefore, the plug continuously reciprocates up by suction and down by gravity upon sequential closing and opening of the valve. The system is incorporated in a central vacuum cleaning apparatus which provides the suction source and has a filter. The reciprocating movement of the plug drives a hammer or brush to continuously remove the dirt accumulating on the filter.
REFERENCES:
patent: 1153751 (1915-09-01), Beth
patent: 3111024 (1963-11-01), Sarver
patent: 4193264 (1980-03-01), Takahashi
patent: 4277265 (1981-07-01), Leinfelt
patent: 5099544 (1992-03-01), Yamamoto
patent: 5191673 (1993-03-01), Damizet
patent: 5201095 (1993-04-01), Choi
Bushey C. Scott
Martineau Fran.cedilla.ois
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