Patent ID: 7600610

Claim:
A climb assist system for use in combination with a climbing structure having upper and lower ends, the climb assist system comprising: a header assembly for attachment to the upper end of the climbing structure, the header assembly including a pulley frame having opposing front and rear ends and front and rear pulleys located adjacent the front and rear ends; at least one elongated guide member extending from the header assembly downwardly toward the lower end of the climbing structure; a climb assist cable extending over the front and rear pulleys and including a front cable portion for extending along a front side of the climbing structure, and a rear cable portion for extending along a rear portion of the climbing structure adjacent to the at least one guide member; a counterweight attached to the rear cable portion of the climb assist cable, the counterweight including a guide portion engaged with the at least one guide member; including a fall prevention device for the counterweight, where the fall prevention device is engaged around the at least one quite member and includes an actuation lever connected to the climb assist cable; and wherein the counterweight includes an eye bolt member and the actuation lever includes a shaft engaged through a hole in the eye bolt member, where movement of the shaft within the hole actuates the fall prevention device into locking engagement with the at least one guide member.