Locking strut

Details Locking strut Locking strut

2006-03-14

2006-03-14

Torres, Melanie (Department: 3683)

Brakes

Internal-resistance motion retarder

Using magnetic flux

C188S161000, C188S322150, C188S322220

Reexamination Certificate

active

07011191

ABSTRACT:
A locking strut including a housing with a piston rod extending therethrough. A baffle mounts on the piston rod to divide the housing into two chambers. An orifice through the baffle allows fluid to pass between the chambers to damp reciprocating movement. An electromagnetic driver within the housing is selectively energized to move a ferromagnetic plate between an open position, wherein fluid flows freely between the chambers, and a closed position, wherein the ferromagnetic plate blocks the orifice to prevent fluid flow between the chambers and lock the locking strut in position. A plurality of orifices may be spaced about the baffle, with the number and size of the orifices determining the damping capability of the locking strut. A plurality of drivers may be disposed within the housing to overcome fluid forces during movement of the locking strut between an extended and a retracted position.

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