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US 12,390,918 B2Granted
Electric working machine
AssigneeMakita Corporation
InventorsDaisuke Suzuki, Masayoshi Okumi
Life of this patent
Estimating the term…
Abstract
An electric working machine may include: an electrical component; a first space in which the electrical component is disposed; a partition wall separating the first space from a second space different from the first space, the partition wall including a first communication opening communicating the first space and the second space; and a first one-way valve disposed at the first communication opening.
Claims10
An electric working machine comprising:
- at least one electrical component;
- a first space in which the at least one electrical component is disposed;
- a partition wall separating the first space from a second space different from the first space, the partition wall including a first communication opening communicating the first space and the second space;
- and
- a first one-way valve disposed at the first communication opening,
- wherein:
- the first one-way valve is configured to open and close according to an orientation of the electric working machine,
- the partition wall separates the first space from a third space different from the first space,
- the partition wall further includes a second communication opening communicating the first space and the third space,
- the electric working machine further comprises a second one-way valve disposed at the second communication opening and configured to open and close according to the orientation of the electric working machine,
- when the electric working machine is in a first orientation, the first one-way valve is open and the second one-way valve is closed, and
- when the electric working machine is in a second orientation, the first one-way valve is closed and the second one-way valve is open.
9 more elements
Dependencies are inferred from the claim text.