Oil reservoir for chainsaw with pressure releasing valve
US11186007B2 · kind B2 · utility
0Cited by
14References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2013 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Jul 6, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N19/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A chainsaw (100) includes a power unit, a bar (120), a chain (122) operably coupled to the bar (120) to rotate around the bar (120) responsive to drive power from the power unit, an oil pump operably coupled to the power unit to deliver oil to the chain (122), and an oil 420 reservoir (400) configured to hold oil for delivery to the chain (122) via the oil pump. The oil reservoir (400) may include a main chamber (410) to receive the oil and an air chamber (420). The air chamber (420) may be formed adjacent to and distinct from the main chamber (410). The air chamber (420) is configured to define a space for an air pocket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.