Patent ID: 11946601
Assignee: DISCO CORPORATION
Field: Chemical engineering (Chemistry)
Classification: CPC F  B  G  H | IPC B  F  G  H

Claim 5:
6. The apparatus according to claim 1, further comprising:
a second air pipe configured to be supplied with high-pressure air from a second high-pressure air supply source and to supply the high-pressure air into the main body;
a second filter configured to remove oil contained in the high-pressure air flowing through the second air pipe;
a second gas detector configured to detect an organic gas derived from oil and contained in the high-pressure air that has passed through the second filter; and
a three-way valve connected to both:
the air pipe at a location downstream of the filter; and
the second air pipe at a location downstream of the second air filter,

wherein the three-way valve is configured and arranged to switch the high pressure air flow between the air pipe and the second air pipe based on whether the gas detector or the second gas detector has detected the organic gas within the high pressure air.