Patent ID: 8397901

Claim:
An extendable boom conveyor system comprising: a first boom element, including a brake mechanism, the brake mechanism including a first pin configured to be positioned in an engaged position and a disengaged position and configured to extend from a first side of the first boom element when in the engaged position, the brake mechanism also including a second pin configured to extend from a second side of the first boom element in an engaged position; a second boom element, including a first feature configured to engage the first pin in the engaged position and a second feature configured to engage the second pin in the engaged position to thereby prevent motion of the first boom element relative to the second boom element in at least a first direction; and an actuator coupled to the first and second pins, the actuator having first and second positions and configured to move the first and second pins to their respective engaged positions when the actuator is moved to its first position and to move the first and second pins to their respective disengaged positions when the actuator is moved to its second position.