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US 2018/0169849 A1Published application
Shoed Hydraulic Hammer Piston
AssigneeCaterpillar Inc.
InventorSteven B. Ellis
Life of this patent
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Abstract
A piston for a hydraulic hammer assembly is provided. The piston may include an elongate member extending from a distal end to a proximal end and having a first outer diameter, a flange disposed on the elongate member and having a second outer diameter greater than the first outer diameter, and a non-ferrous shoe radially disposed on the flange.
Claims20
A piston for a hydraulic hammer assembly, the piston comprising:
- an elongate member extending from a distal end to a proximal end and having a first outer diameter;
- a flange disposed on the elongate member and having a second outer diameter greater than the first outer diameter;
- and
- a non-ferrous shoe radially disposed on the flange.
1 more element
A non-ferrous shoe for a hydraulic hammer piston, the non-ferrous shoe comprising:
- at least two arcuate members formed of a non-ferrous material sized to sealably fit around an outer diameter of the piston;
- and
- one or more fasteners configured removably couple the arcuate members to the outer diameter of the piston.
A method of providing a shoed piston for a hammer assembly having a cylindrical chamber, the method comprising:
- providing a piston having at least one flange formed of a ferrous material;
- providing one or more arcuate members formed of a non-ferrous material sized to sealably fit around an outer diameter of the flange and within an inner diameter of the cylindrical chamber;
- and
- removably installing the arcuate members on the outer diameter of the flange to form a non-ferrous shoe.
1 more element
Dependencies are inferred from the claim text.