XTEND

SAFETY AND SECURITY SYSTEMS COMPRISING INFRA-RED OPTICAL SENSORS USED ON A PLURALITY OF SPACED-APART MOVABLE CARRIAGES TO DETECT AN OBJECT OR A PERSON IN THE OPEN AISLE OF THE SHELVING SYSTEM; ELECTRONIC CONTROL SYSTEM FOR CONTROLLING, MONITORING AND DIAGNOSING POWERED MOBILE STORAGE SYSTEMS

STORAGE RACKS AND SHELVING SYSTEMS; MOBILE RACKS AND SHELVING SYSTEMS, AND PARTS AND ACCESSORIES THEREFORE, NAMELY, SHELVES, CARRIAGES CONSISTING OF METAL STRUCTURAL ELEMENTS ON WHICH STORAGE DEVICES ARE MOUNTED OR MOVE UPON AND SOLD AS A UNIT THEREWITH; MOBILE STORAGE SYSTEMS COMPRISED OF A PLURALITY OF MOBILE TRACK-GUIDED STORAGE CARRIAGES EQUIPPED WITH SHELVES OR OTHER STORAGE DEVICES WHICH ARE MOVABLE TOGETHER AND APART TO OPEN-UP AND CLOSE ACCESS AISLES BETWEEN THE STORAGE CARRIAGES, AND POWER UNITS AND CONTROL UNITS SOLD AS A UNIT THEREWITH; ANTI-TIP DEVICES FOR MOBILE TRACK-GUIDED STORAGE UNITS, namely, DEVICES WHICH STABILIZE TRACK-MOUNTED STORAGE RACKS AND SHELVING UNITS AGAINST TIPPING AND SOLD AS A UNIT THEREWITH