Excavating – Snow or ice removing or grooming by portable device – Railway clearer
Patent
1982-07-19
1983-09-13
Eickholt, E. H.
Excavating
Snow or ice removing or grooming by portable device
Railway clearer
30134, 144 34E, 414740, E02F 376, B23P 1900
Patent
active
044034318
ABSTRACT:
A self-contained material handling and shearing attachment for a backhoe enables the backhoe to be used in grasping and moving structural beams, pipes, cables, and the like, and pivotally positions a cutting blade in the form of a hook on the end of a backhoe boom for actuation by a self-contained piston and cylinder assembly. A fixed blade is secured to the attachment forming a shear point between the movable cutting blade and the fixed blade. The fixed and movable blades are shaped and positioned relative to their pivotal engagement to move objects being sheared towards the blade's pivotal engagement rather than away therefrom and does not require the use of the piston and cylinder of the backhoe as is known in prior art shears.
REFERENCES:
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patent: 4058915 (1977-11-01), Hake
patent: 4104792 (1978-08-01), Labounty
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patent: 4198747 (1980-04-01), Labounty
patent: 4217000 (1980-08-01), Watanabe
patent: 4313479 (1982-02-01), Coughran, Jr.
Ramun John
Ramun Michael
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