Lubricant-impregnated bushing for impact tool
US11975435B2 · kind B2 · utility
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13References
16Claims
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Key dates
| Filing date | Jun 7, 2021 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | Dec 15, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2322/50
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A tool includes a housing, a drive assembly including an output shaft extending from the housing such that a tool element for performing work on a workpiece is attachable to the output shaft, and a bushing disposed within the housing. The bushing rotatably supports the output shaft. The bushing is impregnated with lubricant such that the bushing is self-lubricating, and the bushing has an impregnation ratio between about 5% and about 25%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.