US Patent 10017988 Foldable walkway

A foldable walkway may include a platform having a first end and a second end longitudinally opposite the first end, a ladder pivotally coupled to the first end via a first pair of pivot joints, and a pair of supports pivotally coupled to the second end via a second pair of pivot joints. The ladder and the platform are configured to be manually pivoted about the respective first and second pairs of pivot joints. The ladder includes a first portion pivotally coupled to the first end of the platform via the first pair of pivot joints, a second portion movably coupled to the first portion to increase or decrease an extent of the ladder, and a spring having a first end coupled to the first portion and a second end coupled to the second portion.