Machine element or mechanism – Gearing – Directly cooperating gears
Reexamination Certificate
2006-08-08
2006-08-08
Ridley, Richard (Department: 3682)
Machine element or mechanism
Gearing
Directly cooperating gears
C074S424710, C384S245000, C384S611000, C264S328100
Reexamination Certificate
active
07086303
ABSTRACT:
A lead screw for a linear actuator, which has a metal pipe having a helical projection resin-molded on its outer surface, and a ball for a pivot bearing welded to a distal end of the metal pipe, is disclosed together with a method of manufacturing the same. With the lead screw according to this invention, a slight positional deviation from the origin, which is caused at a high ambient temperature by thermal expansion of a resin material filled up in the metal pipe, can be prevented reliably. Linear movement upon rotation of a stepping motor can take place with high precision.
REFERENCES:
patent: 3161447 (1964-12-01), Folke
patent: 3583778 (1971-06-01), Mori
patent: 4618273 (1986-10-01), Gotz et al.
patent: 4792245 (1988-12-01), Fuke et al.
patent: 4988472 (1991-01-01), Orimoto et al.
patent: 5486054 (1996-01-01), Nagata et al.
patent: 5533247 (1996-07-01), Ishii et al.
patent: 5672365 (1997-09-01), Ishii et al.
patent: 5683641 (1997-11-01), Jaskowiak
patent: 5876288 (1999-03-01), Jaskowiak
patent: 5973429 (1999-10-01), Swensgard et al.
patent: 6503430 (2003-01-01), Downey
patent: 6511232 (2003-01-01), Ishii et al.
patent: 6698939 (2004-03-01), Ishii et al.
Hansen Colby
Minebea Co. Ltd.
Muirhead and Saturnelli LLC
Ridley Richard
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