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US 10,865,541 B1Granted
Dipper handle assembly for a power shovel
AssigneeL&H Industrial, Inc.
InventorsJordan T. Rhodine, Nathanael S. Hecht
Life of this patent
Estimating the term…
Abstract
A yoke for a dipper handle assembly used on a power shovel. The yoke is constructed at least in part of a transition portion and associated lugs manufactured of a forged material as opposed to castings. Accordingly, the yoke is less prone to failure and easy to repair in the field.
Claims19
A dipper handle assembly, comprising:
- a tube with a first end and a second end;
- a yoke comprising:
- a transition portion interconnected to the first end of the tube,
- an upper plate interconnected to an outer end of the transition and generally coincident with an upper surface of the transition,
- a lower plate interconnected to an outer end of the transition and generally coincident with a lower surface of the transition,
- a wrapper plate interconnecting an outer end of the upper plate and an outer end of the lower plate,
- a substantially planar first side plate interconnected to a first lateral end of the upper plate, a first lateral end of the lower plate, and a first lateral end of the transition;
- a substantially planar second side plate interconnected to a second lateral end of the upper plate, a second lateral end of the lower plate, and a second lateral end of the transition;
- a first lug interconnected to a first lateral end of the wrapper plate, an outer end of the substantially planar first side plate, the outer end of the upper plate, and the outer end of the lower plate;
- a second lug interconnected to a second lateral end of the wrapper plate, an outer end of the substantially planar second side plate, the outer end of the upper plate, and the outer end of the lower plate;
- a first pitch brace lug interconnected to the lower plate;
- and
- a second pitch brace lug interconnected to the lower plate and spaced from the first pitch brace.
10 more elements
A dipper handle assembly, comprising:
- a tube with a first end and a second end;
- a yoke comprising:
- a transition portion interconnected to the first end of the tube,
- an upper plate interconnected to an outer end of the transition,
- a lower plate interconnected to an outer end of the transition,
- a wrapper plate interconnecting an outer end of the upper plate and an outer end of the lower plate,
- a substantially planar first side plate interconnected to a first lateral end of the upper plate, a first lateral end of the lower plate, and a first lateral end of the transition, and
- a substantially planar second side plate interconnected to a second lateral end of the upper plate, a second lateral end of the lower plate, and a second lateral end of the transition;
- a first lug interconnected to a first lateral end of the wrapper plate, an outer end of the substantially planar first side plate, the outer end of the upper plate, and the outer end of the lower plate;
- and
- a second lug interconnected to a second lateral end of the wrapper plate, an outer end of the substantially planar second side plate, the outer end of the upper plate, and the outer end of the lower plate.
8 more elements
A power shovel, comprising:
- a boom assembly;
- a saddle block interconnected to the boom assembly;
- and
- a dipper handle assembly operably interconnected to the saddle block, the dipper handle assembly comprising:
- a tube with a first end and a second end;
- and
- a yoke comprising:
- a transition portion interconnected to the first end of the tube,
- an upper plate interconnected to an outer end of the transition,
- a lower plate interconnected to an outer end of the transition,
- a wrapper plate interconnecting an outer end of the upper plate and an outer end of the lower plate,
- a substantially planar first side plate interconnected to a first lateral end of the upper plate, a first lateral end of the lower plate, and a first lateral end of the transition, and
- a substantially planar second side plate interconnected to a second lateral end of the upper plate, a second lateral end of the lower plate, and a second lateral end of the transition;
- a first lug interconnected to a first lateral end of the wrapper plate, an outer end of the substantially planar first side plate, the outer end of the upper plate, and the outer end of the lower plate;
- and
- a second lug interconnected to a second lateral end of the wrapper plate, an outer end of the substantially planar second side plate, the outer end of the upper plate, and the outer end of the lower plate.
13 more elements
Dependencies are inferred from the claim text.