Driving tool
US10773366B2 · kind B2 · utility
1Cited by
6References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 27, 2018 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Jan 18, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25C1/044
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A driving tool is provided with first and second grease reservoirs for supplying grease to seal rings present on the outer and inner peripheral circumferences of a head valve in contact with a spring guide. Because of this configuration, wearing off of resistance of the seal rings due to gradual loss of grease can be improved and air leakage therefrom can also be prevented, which can improve durability of the driving tool.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.