Safety drum with lid assembly

Abstract

The drum assembly comprises a drum and a lid assembly removably mounted to the drum. The drum can include a rim defining an opening for access to an interior storage area of the drum. The lid assembly can include a band for mounting the lid assembly to the drum, a cover pivotally mounted to the band via a hinge, and a rotary latch mechanism for securing the cover in a closed position. The cover is movable between the closed position wherein the lid covers the opening and an open position in which the lid is pivoted away from the opening to allow access to the interior storage area. The rotary latch mechanism can include a retention bar mounted to one of the band and the cover and a rotary latch mounted to the other of the band and the cover. The rotary latch is configured to receive the retention bar when the cover is closed to thereby secure the cover closed over the opening of the drum. The latch includes a trigger that is moveable between a locked position in which the latch is locked and a released position in which the latch is unlocked.

1 . A drum assembly comprising;
 a drum, the drum including a sidewall and a bottom, the sidewall with a rim defining an opening to an interior storage area;   a band removably mounted to the drum;   a lid movably attached to the band, the lid being movable between a closed position wherein the lid covers the opening of the drum and an open position wherein the lid is disposed away from the opening such that the interior storage area of the drum is at least partially accessible;   a retention bar mounted to one of the band and the lid; and   a rotary latch attached to the other of the band and the lid, the rotary latch configured to receive the retention bar when the lid is in the closed position, the rotary latch movable between a locked position wherein the rotary latch is retentively engaged with the retention bar and a released position wherein the rotary latch is movable with respect to the retention bar.   
     
     
         2 . The drum of  claim 1  wherein the band comprises a split ring having a pair of ends, a nut and a screw, the nut and the screw threadedly engaged with each other to connect the ends of the split ring. 
     
     
         3 . The drum assembly of  claim 1 , wherein the lid is movably mounted to the band via a hinge. 
     
     
         4 . The drum assembly of  claim 1 , further comprising a gasket attached to an inner surface the lid, the gasket providing a seal between the rim of the drum and the lid when the lid is in the closed position. 
     
     
         5 . The drum of  claim 4 , wherein the lid includes a pressure relief valve configured to open when the pressure in the storage area of the drum reaches a predetermined level and to close when the pressure in the storage area of the drum falls below the predetermined level. 
     
     
         6 . The drum assembly of  claim 1 , wherein the rotary latch includes a rotatable trigger that is moveable between a locked position in which the latch is locked and a released position in which the latch is unlocked. 
     
     
         7 . The drum assembly of  claim 6 , wherein the rotary latch automatically engages the retention bar when the cover is moved to the closed position without manual operation of the trigger. 
     
     
         8 . A lid assembly for a drum, the lid assembly comprising;
 a band;   a lid movably attached to the band, the lid being movable between a first position and a second position;   a retention bar mounted to one of the band and the lid; and   a rotary latch attached to the other of the band and the lid, the rotary latch configured to receive the retention bar when the lid is in the first position, the rotary latch movable between a locked position wherein the rotary latch is retentively engaged with the retention bar and a released position wherein the rotary latch is movable with respect to the retention bar.