Machine element or mechanism – Gearing – Directly cooperating gears
Reexamination Certificate
2005-09-13
2005-09-13
Fenstermacher, David M. (Department: 3682)
Machine element or mechanism
Gearing
Directly cooperating gears
C074S424860
Reexamination Certificate
active
06941831
ABSTRACT:
The ball screw apparatus of an end cap type comprises a ball nut which includes a nut main body having a ball circulation hole penetrating through the nut main body in the axial direction thereof and two end caps respectively fixed to the two end portions of the nut main body and defining two ball circulation R portions between the end faces of the nut main body and themselves. A guide groove for a ball is defined only on the end face side of the nut main body to thereby define the ball circulation R portion, and the shapes of the surfaces of the end cap, which are disposed opposed to the end faces of the nut main body, are defined substantially uniform over the entire peripheries thereof.
REFERENCES:
patent: 2298011 (1942-10-01), Hoffar
patent: 3161073 (1964-12-01), Deutsch et al.
patent: 3306124 (1967-02-01), Adams
patent: 3512426 (1970-05-01), Dabringhaus
patent: 3580098 (1971-05-01), Goad
patent: 3667311 (1972-06-01), Wysong
patent: 4074585 (1978-02-01), Richaud et al.
patent: 4177690 (1979-12-01), Klinkenberg
patent: 5014568 (1991-05-01), Schlenker
patent: 5142929 (1992-09-01), Simpson, III
patent: 5154091 (1992-10-01), Bianco
patent: 5555770 (1996-09-01), Dolata et al.
patent: 5974908 (1999-11-01), Shirai et al.
patent: 5988007 (1999-11-01), Nishimura
patent: 44 43 924 (1995-06-01), None
patent: 496 034 (1992-07-01), None
patent: 930 450 (1999-07-01), None
patent: 1 026 067 (2000-08-01), None
patent: 2 191 677 (1974-02-01), None
patent: 892612 (1962-03-01), None
Fenstermacher David M.
NSK Ltd.
Sughrue & Mion, PLLC
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