When a sample needs to be put into a machine for experimentation or study, the sample is affixed to an arrowhead shaped sample holder called a "Puck". The puck has a "Stem" at the back of it that attaches to/docks with a device called a "Puckulator". The puckulator is used to safely and reliably transfer these pucks in and out of machines. Its main purpose is to ensure that it will not let go of a puck until it has been properly secured into a stage. A puckulator is usually affixed to the end of a long rod and manipulated at a distance by twisting the rod to lock/unlock the puck into it's stage.(Visual demonstration can be seen in the "Puckulator Purpose Drawing" document)There has been previous designs of puckulators, however the Revision E is, in my opinion, the superior design.