Compound sinusoidal wheel applicable to materials handling equipment
US10688824B2 · kind B2 · utility
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51References
15Claims
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Key dates
| Filing date | Nov 6, 2018 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Nov 6, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/88
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A materials handling equipment has blades of a lifting fork wherein each of the blades engages a blade wheel that moves between a retracted position when the blade is lowered and an extended position when the blade is raised to lift and support a load. The blade wheels have a plurality of tires linearly aligned on a common axis, the tires each having a circular circumference and a sinusoidally varying peripheral surface. The sinusoidally varying peripheral surfaces have relative peaks and valleys uniformly spaced around the circular circumference wherein the peaks and valleys are mutually nested.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.