Roller screw actuator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Apr 29, 2004
app pub date -
Dec 15, 2003
filing date -
Nov 14, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A roller screw actuator comprises a screw (112), a nut (114) coaxial with the screw and an outer drive member (202) rotatably supported on the nut. Several planetary rollers (116) are rotatably engaged between and with the screw and the nut. A gearing system (119) couples the planetary rollers to the outer drive member (202) and the nut, the arrangement being such that in a first, unjammed condition and in a second, jammed condition, the lead rate of the screw actuator is maintained substantially constant.
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