Machine element or mechanism – Gearing – Directly cooperating gears
Reexamination Certificate
2006-01-10
2006-01-10
Hannon, Thomas R. (Department: 3682)
Machine element or mechanism
Gearing
Directly cooperating gears
C074S424810, C074S424820, C074S089400
Reexamination Certificate
active
06983669
ABSTRACT:
A ball screw mechanism has an opposing thread provided by an integral male thread formed at one end of a nut received on the screw. The male thread is of a smaller form than the female thread on the screw so as to not normally be in contact therewith, but should ay loss of the balls occur with the resultant slight relative axial shift of the screw and nut, the male threads engage to limit such relative axial movement to protect connected equipment. Both the nut male and female threads may be machined from a cylindrical nut blank.
REFERENCES:
patent: 3244022 (1966-04-01), Wysong, Jr.
patent: 3304794 (1967-02-01), Bird
patent: 3643521 (1972-02-01), Nilsson
patent: 5178029 (1993-01-01), Klinkenberg
patent: 5555771 (1996-09-01), Kuroiwa et al.
Bulthaus Bryce J.
Caronna Steven
Clint Patrick
Atwood Mobile Products Inc.
Benefiel John R.
Dura Automotive
Hannon Thomas R.
McAnulty Timothy
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