Metal working – Means to assemble or disassemble – Puller or pusher means – contained force multiplying operator
Reexamination Certificate
2008-01-29
2008-01-29
Wilson, Lee D. (Department: 3723)
Metal working
Means to assemble or disassemble
Puller or pusher means, contained force multiplying operator
C029S255000, C029S262000
Reexamination Certificate
active
07322087
ABSTRACT:
A bearing installing and removing tool includes a driving unit and a link unit, wherein the driving unit has a threaded rod on which an adjusting member of a connection frame is threadedly mounted. The connection frame has a guide rail and a pivotable portion so as to be connected with different types of pull assemblies or link units to have different functions. A pull unit may be connected with the threaded rod so as to remove a bearing located in a tubular shaft. A connection unit may be connected with the threaded rod and includes a connection piece with a bowl-shaped space so as to be connected with a bowl-shaped head of a bolt such that the bolt provides an adjusting function to mount a bearing to a shaft whole improve poor eccentricity between the bearing and the shaft is existed.
REFERENCES:
patent: 6895646 (2005-05-01), Houg
patent: 7047609 (2006-05-01), Hu et al.
patent: 7117573 (2006-10-01), Hu
patent: 7216409 (2007-05-01), Chiu et al.
Rosenberg , Klein & Lee
Wilson Lee D.
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