US Patent 11267137 Controlling end effector suction area using expandable bladder

Aspects described herein include an end effector that includes a pliable body member defining an inner recess and having a sealing surface at a distal end. The sealing surface forms a seal with items and defines a first suction area. The end effector also includes an inflatable bladder that expands into the inner recess. When the bladder is in an inflated state, the bladder defines a second suction area smaller than the first suction area. The end effector also includes a vacuum port in fluid communication with the inner recess.