Patent ID: 9534443
Date: 2017-01-03
CPC Classifications: E06C

Claim:
1. A ladder comprising: two primary legs; at least one step coupled to the two primary legs; two secondary legs coupled to the two primary legs proximate a top of the ladder; a movable section coupled to at least one of the two primary legs, the movable section comprising a substantially planar, major substantially horizontal upper surface of a shelf, wherein the upper surface of the shelf is configured to place tools and paint thereon; wherein the movable section is configured to collapse the ladder towards a closed configuration in response to an upward movement of the movable section towards the top of the ladder; wherein the movable section is configured to open the ladder towards an open configuration in response to a downward movement of the movable section away from the top of the ladder; wherein the upper surface of the shelf is not configured to substantially rotate when the ladder is being interchanged between the open configuration and the closed configuration, and wherein the upper surface of the shelf is not configured to substantially tilt with respect to the top of the ladder when the ladder is being interchanged between the open configuration and the closed configuration; wherein the movable section is coupled to each of the two primary legs through a respective arm and a respective hinge, wherein the movable section is coupled to each of the two secondary legs through a respective arm and a respective hinge, wherein the four arms are coupled with the movable section, and; wherein longest lengths of only two of the four arms are parallel when the ladder is in the open configuration.