Boring or penetrating the earth – With below-ground tool drive prime mover – With mechanical motion-converting means
Reexamination Certificate
2005-03-14
2008-11-04
Gay, Jennifer H (Department: 3676)
Boring or penetrating the earth
With below-ground tool drive prime mover
With mechanical motion-converting means
Reexamination Certificate
active
07445061
ABSTRACT:
A bearing assembly is situated to conduct axial forces between the general housing and the output shaft by way of an intermediate sleeve that is secured to the output shaft outside the general housing and is axially confined by a bearing assembly secured to the general housing.
REFERENCES:
patent: 3840080 (1974-10-01), Berryman
patent: 4308927 (1982-01-01), Fox
patent: 4811798 (1989-03-01), Falgout
patent: 6540020 (2003-04-01), Falgout
Daigle Chad M.
Falgout, Sr. Thomas E.
Gay Jennifer H
Jeter John D.
Stephenson Daniel P
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