Patent ID: 11926466
Assignee: nan
Field: Handling (Mechanical engineering)
Classification: CPC B | IPC B

Claim 12:
13. A method is using a self-lifting supply container, the method comprising the steps of:
filling, by way of a user, the self-lifting supply container with a supply material, weight of the supply material added to a movable tray causes the movable tray to descend into a container tower, tensioning by stretching one or more of an elastic band, the self-lifting supply container comprises the movable tray, at least one of a guide is fastened to each side of outer perimeter of the movable tray, the guide comprises a body portion that is narrow and a head portion that is connected to and wider than the body portion, more than one of a container wall, each of the container wall having at least one of a track cut therethrough, each of the container wall is secured proximate to each other forming the container tower, the container tower having a container top, a container bottom, an interior container region, and an exterior container surface, the track is orientated vertically from the container top to proximate the container bottom, the movable tray is sized to fit within the interior container region with the body portion of the guide fitting through the track and the head portion of the guide positioned proximate to the exterior container surface retaining the movable tray within the interior container region and allowing the movable tray to slide up and down the track within the interior container region, at least one of a pulley is secured on the exterior container surface of each of the container wall proximate to the container top, and more than one of the elastic band, one end of each of the elastic band is attached to the exterior container surface of the container wall proximate to the container bottom, and other end of the elastic band passes over the pulley and is secured to the guide; and
removing, by way of the user, portion of the supply material, reducing weight on the movable tray causing the movable tray to partially ascend the container tower by way of tension in the elastic band lifting the movable tray and the supply material on the movable tray, wherein the supply material is accessible to the user proximate to the container top regardless of the amount of the supply material remaining on the movable tray within the self-lifting supply container.