Machine element or mechanism – Gearing – Directly cooperating gears
Patent
1985-11-25
1987-07-07
Husar, Cornelius J.
Machine element or mechanism
Gearing
Directly cooperating gears
74459, F16H 118
Patent
active
046778691
ABSTRACT:
A linear actuator comprising a ball screw, ball nut, and an endless ball circuit disposed between the two has an improved end closure body having a guide portion extending to approximately one revolution of the helical path around the screw out of the nut, where the balls then depart from the helical screw path and are received in a nonlinear ball passage formed within the closure. The ball passage has a first portion tangent to the ball screw groove and a second portion extending out of the end face of the closure in line with a longitudinal hole in the ball nut so that the balls may be smoothly returned through the nut to the opposite end, for reentry into the helical ball path.
REFERENCES:
patent: 3198029 (1965-08-01), Orner
patent: 4074585 (1978-02-01), Richaud et al.
patent: 4211125 (1980-07-01), Benton
patent: 4258584 (1981-03-01), Haegele et al.
patent: 4557156 (1985-12-01), Teramachi
patent: 4564993 (1986-01-01), Blaurock et al.
patent: 4604911 (1986-08-01), Teramachi
Cincinnati Milacron Inc.
Cuomo Peter M.
Farrell Thomas M.
Husar Cornelius J.
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