Spring actuator with rollers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jul 2, 1991
Issued Date -
N/A
app pub date -
Nov 13, 1989
filing date -
Jan 30, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An actuator having a body with interior helical grooves, an output shaft with exterior helical grooves, a set of rollers in rolling engagement with the body and output shaft grooves, and a piston sleeve axially movable within the body and retaining the rollers in a fixed axial and circumferential position relative to the piston sleeve during operation of the actuator. A spring is positioned within the body to one axial side of the piston sleeve to apply a linear force thereto. The actuator converts a linear force on the piston sleeve into a rotational force on the output shaft, and vice versa.
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