Oil injecting apparatus

Details Oil injecting apparatus Oil injecting apparatus

2007-03-20

2007-03-20

Maust, Timothy L. (Department: 3751)

Fluent material handling, with receiver or receiver coacting mea

Evacuation apparatus

C141S051000, C141S059000, C141S067000, C184S055100

Reexamination Certificate

active

10525465

ABSTRACT:
The opening of an oil container11for storing oil12is sealed airtight with a cover member32. A one-sided-bag-shaped fluid dynamic pressure bearing10is seated on an O-ring25and fixed airtight onto the upper surface of a bearing seating30. Inanexhaust position with the distal end portion of an injection tube36positioned away from an oil level, the inside of the oil container11is evacuated by a vacuum pump22through a suction/exhaust passage including a suction/exhaust through-hole17, thus turning the inside of the one-sided-bag-shaped fluid dynamic pressure bearing (10) into a vacuum. In this state, a control device drives a moving device to raise the oil container11to an injection position and releases the suction/exhaust passage to the atmosphere. This causes the oil12to be injected into the one-sided-bag-shaped fluid dynamic pressure bearing10through an oil injection passage including the injection tube36.

REFERENCES:
patent: 5112142 (1992-05-01), Titcomb et al.
patent: 5601125 (1997-02-01), Parsoneault et al.
patent: 5862841 (1999-01-01), Wuester, Sr.
patent: 7028721 (2006-04-01), Bowdoin et al.
patent: 2004278630 (2004-10-01), None
patent: 2004278760 (2004-10-01), None

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