# US 2008/0184524 A1 · Cart stop > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2008/0184524 A1 - Document ID: US20080184524A1 - Status: Published application - Kind: A1 - Application number: 11/670,956 - Filed: 2007-02-02 - Published: 2008-08-07 - Earliest claimed: 2007-02-02 - Assignees: Maxon Industries, Inc. - Inventors: Karapet Ablabutyan; Aida Sahakyan - Web page: https://patentgrep.com/patent/US20080184524A1 ## CPC - B65G 69/287: {Constructional features of deck or surround} - B66F 7/28: Constructional details, e.g. end stops, pivoting supporting members, sliding runners adjustable to load dimensions - B65G: TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS (packaging B65B; handling thin or filamentary materials, e.g. paper sheets or thread, B65H; cranes B66C; portable mobile or lifting or hauling appliances, e.g. hoists, B66D; devices for lifting or lowering goods for loading or unloading purposes, e.g. fork-lift trucks, B66F9/00; emptying bottles, jars, casks, barrels or similar containers, not otherwise provided for, B67C9/00; delivering or transferring liquids B67D; filling or discharging vessels for liquefied, solidified or compressed gases F17C; pipe-line systems for fluids F17D) - B66F: HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD ({invalid lifting devices A61G7/10; } mounting artificial islands on piles or like supports E02B17/00; scaffolding combined with lifting devices E04G1/22; lifting devices for sliding forms E04G11/24; lifting of buildings E04G23/06; shores or struts E04G25/00; lifts or other hoisting devices on ladders E06C7/12; props for mining E21D15/00) ## Abstract A cart stop suitable for use with a lift platform is described. The cart stop has a closed position which allows a cart or other wheeled device to move over it. The cart stop also has an open position which prevents the cart or other wheeled device from rolling off of the lift platform. ## Claims ### Claim 1 An apparatus for carrying a load to and from a vehicle bed, the apparatus comprising: a lift platform defining a channel; a cart stop at least partially located in the channel, the cart stop being rotatably coupled to the lift platform, the cart stop having an open position and a closed position, the cart stop being substantially level with an upper surface of the lift platform when the cart stop is in the closed position, the cart stop having a first substantially flat surface corresponding to the open position, and a second substantially flat surface corresponding to the closed position; a spring device biased against the first substantially flat surface when the cart stop is in the open position, the spring device biased against the second substantially flat surface when the cart stop is in the closed position; and a toe flip coupled to the cart stop, the toe flip extending above an upper surface of the lift platform when the cart stop is in the closed position, the toe flip configured to allow the cart stop to be moved between the open position and the closed position. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the spring device is a spring having a substantially wave-like profile. ### Claim 3 (depends on 2) The apparatus of claim 2, wherein the spring device is located at a bottom of the channel. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein the lift platform includes a plurality of foldable sections. ### Claim 5 (depends on 4) The apparatus of claim 4, wherein the lift platform includes spacers which prevent the cart stop and/or the toe flip from striking the foldable sections. ### Claim 6 An apparatus for carrying a load to and from a vehicle bed, the apparatus comprising: a lift platform defining a channel; a cart stop at least partially located in the channel, the cart stop being rotatably coupled to the lift platform, the cart stop having an open position and a closed position, the cart stop being substantially level with an upper surface of the lift platform when the cart stop is in the closed position, the cart stop having a first substantially flat surface corresponding to the open position, and a second substantially flat surface corresponding to the closed position; a spring means biased against the first substantially flat surface when the cart stop is in the open position, the spring means biased against the second substantially flat surface when the cart stop is in the closed position; and a toe flip coupled to the cart stop, the toe flip extending above an upper surface of the lift platform when the cart stop is in the closed position, the toe flip configured to allow the cart stop to be moved between the open position and the closed position. ### Claim 7 (depends on 6) The apparatus of claim 6, wherein the spring means is a spring having a substantially wave-like profile. ### Claim 8 (depends on 7) The apparatus of claim 7, wherein the spring means is located at a bottom of the channel. ### Claim 9 (depends on 6) The apparatus of claim 6, wherein the lift platform includes a plurality of foldable sections. ### Claim 10 (depends on 10) The apparatus of claim 10, wherein the lift platform includes spacer means which prevent the cart stop and/or the toe flip from striking the foldable sections.