Clamping ring for removable covers of drums

Details Clamping ring for removable covers of drums Clamping ring for removable covers of drums

1976-05-28

1978-07-18

Moore, Richard E.

Closure fasteners

Clamps

Ring

E05C 1918

Patent

active

041011562

ABSTRACT:
A clamping ring for securing a removable cover on a drum is provided with a closing device having a lever and a latch. The lever is pivotal in a plane parallel to that of the clamping ring from an outwardly extending open position inwardly to contract the ring into a closed position. The latch is pivoted downwardly until its latch finger extends through a slot in the lever finger to place the clamping ring in a sealed position. This sealed position is accomplished by means of a primary lock caused by the interengagement of a hook-tang on the latch finger and bottom surfaces of the lever finger adjacent the slot. A secondary lock is formed by the interengagement of an inwardly projecting tang on the latch finger which also engages with surfaces of the lever finger adjacent the slot.

REFERENCES:
patent: 2304539 (1942-12-01), Carpenter
patent: 2772109 (1956-11-01), Busch et al.
patent: 2914354 (1959-11-01), Moberg
patent: 3146012 (1964-08-01), King, Sr.
patent: 3339961 (1967-09-01), Schaefer
patent: 3768848 (1973-10-01), Santoni

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