Solid material comminution or disintegration – Apparatus – Combined or convertible
Reexamination Certificate
2005-06-23
2009-08-25
Francis, Faye (Department: 3725)
Solid material comminution or disintegration
Apparatus
Combined or convertible
C241S266000
Reexamination Certificate
active
07578461
ABSTRACT:
A lubricating system for a heavy-duty material processing shears provides lubricant to one of more wear surfaces on one or more wear portions in the shears. The system includes a hydraulic lubricant pump that is actuated by the main hydraulic control system by means of which the jaws of the shears are opened and closed, and may include a sequential valve to distribute lubricant to various wear portions in sequential fashion. The lubricating system may lubricate one or more wear surfaces of the lateral blade stabilizers, primary and secondary blade(s) on the upper and/or lower jaws, pivotal connections between jaws and/or between the upper jaw and the hydraulic cylinder, a forward wear plate, or any other wear portion of the shears. The lubricating system may be retrofitted onto a conventional non-lubricated shears by replacing a conventional upper jaw with an upper jaw with lubricant conduits and a lubricating system.
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Sederberg Clayton P.
Swanson Michael W.
Francis Faye
Pillsbury Winthrop Shaw & Pittman LLP
The Stanley Works
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