Linear or rotary actuator
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United States of America Patent
Stats
-
Feb 22, 2005
Grant Date -
Jun 26, 2003
app pub date -
Nov 18, 2002
filing date -
May 19, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An actuator (1) for the linear displacement of a member to be controlled comprising a motor part (2) and an actuating device part (3) including a threaded screw (11) with linear displacement, and a rotary member (9) provided with a threaded portion (10) matching the screw thread, the rotary member capable of being driven in rotation by the motor part and being supported by bearings (15,16) in the form of roller bearing stops with four contact points arranged on either axial side of said threaded portion to guide the rotary member axially and radially. The raceways of the balls are directly in the rotary member and integral with parts of the body (14) or the cover (13) of the actuator.
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