Excavating – Clamshell bucket – Common pivot
Patent
1995-04-11
1996-09-10
Warnick, IV, Spencer K.
Excavating
Clamshell bucket
Common pivot
294 6823, 294 661, 37340, 37341, B66C 302
Patent
active
055534040
ABSTRACT:
A bucket for power shovels is disclosed having a first bucket half and a second bucket half. Each bucket half includes a pair of spaced side walls and an end wall extending between the side walls which together forms a scoop for each bucket half. The bucket halves are pivotally secured together so that the scoops face each other and are movable between an open position in which the scoops are spaced apart from each other and a closed position in which the scoops space each other and form a load carrying chamber. The side walls of the bucket half overlap each other upon closure to minimize the spillage of the load out through the sides of the bucket during a scooping operation. Furthermore, a flap valve is mounted to an upper side of at least one of the bucket halves to allow water and air to freely escape from the interior chamber of the bucket as the bucket is lowered. This valve, however, prevents spillage of the load from the interior of the bucket.
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