Operation

The Lock-on-Extend (LOE) Self-Locking Cylinder employs a tri-sectional locking ring (three segments) and an annular groove to maintain a metal-on-metal mechanical lock regardless of system pressure. As the cylinder reaches end-of-stroke (extend), the tri-sectional ring (see "A" at right), is forced into the annular groove ("B") in the rod by the locking slide ("C"). The locking slide is held in place by the bias springs and will maintain lock-up until pressure is applied to the retract port. The retract port supplies pressure to move the locking slide off the three locking segments and to retract the rod at the same time.