Spring force actuators
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 13, 1990
Grant Date -
N/A
app pub date -
Oct 27, 1988
filing date -
Oct 31, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A spring force actuator comprising a housing, an output member axially moveable in the housing, a spring captive between the member and the end wall of the housing. The actuator further comprises an axially located screw-threaded wind-off element operable to apply an opposing force to the spring between the output member and the end wall. The wind-off element is threadedly cooperable with a nut which is non-rotationally captive in an externally accessible recess of the end wall.
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