Pneumatic hopper outlet cap latch

Details Pneumatic hopper outlet cap latch Pneumatic hopper outlet cap latch

1977-10-25

1979-08-07

Kunin, Stephen G.

Conveyors: fluid current

Miscellaneous

105283, 222545, B61D 702, B61D 728, B61D 4900, B65G 5350

Patent

active

041635833

ABSTRACT:
A pneumatic hopper outlet, where the discharge conduit end cap is held in place with at least one large headed bolt which is pivotably mounted on the discharge conduit and which engages at least a portion of the end cap. The large headed bolt is attached to a vertically extending locking member of generally inverted J shape which is rotatably mounted on a side of the discharge conduit. When an operating handle attached to an operating shaft of an outlet valve element is in the position which corresponds to the fully closed position of the valve element, the lower surface of the locking member prevents movement of the operating handle and the valve element from moving from the closed position. If the valve element and its operating shaft are not in the fully closed position, the operating handle obstructs the path of the pivoting locking member and the large headed bolt cannot be pivoted into position to hold the end cap in closed position. Preferably a pair of locking members are provided on each end of the outlet, each attached to a large headed bolt which engages a portion of the end cap.

REFERENCES:
patent: 1252810 (1918-01-01), Kirchner
patent: 3167222 (1965-01-01), Koranda
patent: 3306675 (1967-02-01), Fritz
patent: 3583768 (1971-06-01), Koranda
patent: 3693846 (1972-09-01), Schuller
patent: 3980212 (1976-09-01), Aller et al.
patent: 4062596 (1977-12-01), Kull
patent: 4114785 (1978-09-01), Dugge

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