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US 10,947,867 B2Granted
Lightweight geardrive systems
OwnerWilliam Cullen Chapman, Jr.inventor
Life of this patent
Estimating the term…
Abstract
An improved, lightweight gear drive having a rim gear mounted on a shaft, the shaft formed of one or more shaft segments, each of the shaft segments supporting a segregated arc. The segregated arcs forming a circumferential portion of a bearing surface of the shaft.
Claims24
A gear drive comprising:
- a first wall and a second wall spaced from the first wall and defining a gear drive space between the first and second walls;
- a first gear shaft having a bearing surface and extending from one of the first wall and the second wall into the gear drive space;
- and
- a first rim gear comprising a rim with outward-facing gear teeth extending therefrom, a mounting surface of the rim rotatably mounted on the bearing surface of the first gear shaft, wherein the first and second walls position the first rim gear on the first gear shaft;
- wherein the first gear shaft comprises a first shaft segment having a first segregated arc, the first segregated arc forming a first circumferential portion of the bearing surface of the first gear shaft.
2 more elements
A gear drive comprising:
- a first wall and a second wall spaced from the first wall;
- a first gear shaft extending from one of the first wall and the second wall;
- a first rim gear having a rim rotatably mounted on the first gear shaft, the rim comprising outward-facing gear teeth extending therefrom and a mounting surface, wherein the first and second walls position the first rim gear on the first gear shaft;
- and
- a plurality of rollers mounted on the first gear shaft, the plurality of rollers engaged with the mounting surface of the first rim gear.
2 more elements
Dependencies are inferred from the claim text.