The Super Stealth Quick Coupler was designed to be a hydraulic version of Nye’s famous original wedge style coupler the Stealth.
This version would have a single hydraulic cylinder inside which actuates a locking bar that presses into the top of the bucket essentially holding the attachment within the wedge on top.
In addition we also included two visual indicators (painted red) at the rear of the coupler that protrude from the sides only after the locking cylinder has engaged. This way the operator would know that the attachment is safely engaged.
The hydraulic circuit for this action was accomplished by using dual pilot operated check valves that would only unlock both of the cylinders after a reverse pressure in the opposite direction.