Wood cutting shear

Details Wood cutting shear Wood cutting shear

1988-10-06

1990-03-20

Bray, W. Donald

Cutlery

Combined cutlery or combined with ancillary feature

With material-holder or disposal

83928, 83609, 144 3D, 144 34E, 144339, 30228, 371175, B23P 1900

Patent

active

049089463

ABSTRACT:
The present invention relates to heavy duty wood cutting shear attachments of a large scale for connection to a boom structure of a hydraulic excavator for cutting tree stumps and the like. The wood cutting shear includes a swingable jaw and a stationary jaw. The swingable jaw has a C-shaped frame with a knife like cutting blade affixed therein. The stationary jaw includes a stump supporting section having a blade receiving slot with a width of approximately the thickness of the cutting blade. Besides slicing through a stump placed between the jaws, the knife like blade may cooperate with the stump supporting section to shear portions of the stump being sliced.

REFERENCES:
patent: Re26992 (1970-11-01), Rehnstrom
patent: 3814152 (1974-06-01), Pallari
patent: 4198747 (1980-04-01), LaBounty
patent: 4274457 (1981-06-01), Nilsen
patent: 4439921 (1984-04-01), Ramun et al.
patent: 4519135 (1985-05-01), LaBounty
patent: 4558515 (1985-12-01), LaBounty
patent: 4670983 (1987-06-01), Ramun et al.

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