Rotational machine

Details Rotational machine Rotational machine

2006-07-11

2006-07-11

Kramer, Devon (Department: 3683)

Brakes

Operators

Electric

C277S549000, C187S254000

Reexamination Certificate

active

07073639

ABSTRACT:
A rotational machine includes a shaft, a rotary member rotatably mounted on the shaft with a bearing fitted between the shaft and the rotary member, an oil seal for sealing the bearing to prevent leakage of lubricant from inside the bearing through its axial end onto a surface of the rotary member, a brake which comes into sliding contact with a contact surface area formed on the surface of the rotary member for arresting rotation of the rotary member, a supporting member fixedly mounted on the shaft face to face with the rotary member forming a gap therebetween, the gap serving as a fluid path through which the lubricant which has leaked over the oil seal is allowed to flow, and an oil stop portion formed at a location in the gap between the oil seal and the contact surface area for impeding flow of the leaked lubricant.

REFERENCES:
patent: 4327924 (1982-05-01), Wheeler
patent: 4688660 (1987-08-01), Kaneko
patent: 5931274 (1999-08-01), Sakurai et al.
patent: 2005/0076739 (2005-04-01), Uduka et al.
patent: 4350085 (1992-12-01), None
patent: 8-245107 (1996-09-01), None
patent: 2001-139265 (2001-05-01), None
patent: 2002-302356 (2002-10-01), None

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