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US 2009/0211120 A1Published application
Excavator stump shearing device
OwnerGerald G. Martininventor
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OwnerGerald G. Martininventor
Estimating the term…
An excavator stump shearing device which is characterized by a blade assembly carried by various mount devices for attachment to an excavator bucket or to an excavator boom or bucket arm. In a first preferred embodiment the blade assembly is fixed to a blade mount drum which is removably gripped by the bucket and thumb of an excavator bucket to position the blade elements of the blade assembly for shearing a stump. In other embodiments the blade assembly mount devices are characterized by mount blocks, various blade mount boxes, a bucket tooth and tooth mount assembly and a bucket-engaging pad apparatus. The blade elements of the blade assembly include a bevelled shearing blade and a companion transverse wedge or stinger blade for engaging, splitting and shearing a stump responsive to operation of the excavator boom or arm and in some embodiments, the excavator bucket. In a preferred embodiment the blade assembly is designed for removably mounting on the excavator bucket boom or arm using a blade assembly housing or mount box having pins that removably engage a pin coupler mounted on the excavator boom or arm.
A stump shearing device for mounting on an excavator bucket and cutting a stump, comprising a blade assembly carried by the excavator bucket, said blade assembly comprising a blade backplate engaging the excavator bucket;
A stump shearing device for mounting on the excavator bucket of an excavator and shearing a stump, comprising a blade backplate disposed for insertion against the excavator bucket;
A stump shearing device for mounting on an excavator bucket arm and operating linkage and cutting stumps responsive to operation of the excavator bucket arm, said stump shearing device comprising a blade assembly apparatus characterized by a blade mount box for mounting on the bucket arm and operating linkage, and a blade assembly characterized by a shearing blade carried by said blade mount box for shearing the stump and a wedge blade carried by said blade mount box adjacent to said shearing blade for splitting the stump.
A stump shearing device for mounting on an excavator bucket arm and operating linkage, and shearing stumps responsive to operation of the excavator bucket arm, said stump shearing device comprising a blade mount box for mounting on the bucket arm, a shearing blade carried by said blade mount box for shearing the stump and a wedge blade carried by said blade mount box substantially transverse to said shearing blade for splitting the stump.
A stump shearing device for mounting on an excavator bucket arm and operating linkage having a pin coupler, said stump shearing device comprising a blade mount;
A stump shearing device for mounting on an excavator bucket and cutting a stump, comprising a blade assembly characterized by a blade backplate;
Dependencies are inferred from the claim text.