# US 7,607,550 B2 · Portable and stackable plastic multipurpose container > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,607,550 B2 - Document ID: US7607550B2 - Status: Granted - Kind: B2 - Application number: 10/555,159 - Filed: 2005-10-26 - Published: 2008-08-21 - Granted: 2009-10-27 - Earliest claimed: 2005-10-26 - Assignees: Steelworks Hardware, LLC - Inventors: Pei-Ying Lin; Chanwa Nguy - Web page: https://patentgrep.com/patent/US7607550B2 ## CPC - B65D 21/0223: {the closure and the bottom presenting local co-operating elements, e.g. projections and recesses (B65D21/0222 takes precedence)} - B25H 3/021: {comprising a number of connected storage elements} - B65D 43/16: hinged for upward or downward movement - B65D 43/20: linearly slidable - B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES - B25H: WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS (storing or packaging B65) ## Abstract Portable and stackable multipurpose containers are disclosed. The containers have an oval base and an oval top in communication with sides of the wall extending perpendicularly from the base. The oval top is slidably positioned to open from both sides, which are perpendicular to the oval sides; the top is slidable. The multipurpose container is adapted for storing nails, screws, and similar items useful to craftsmen. ## Claims ### Claim 1 A portable and stackable plastic multipurpose container comprising: a curved base; a curved top including two slidable panels, the panels openable from a front and rear of the multipurpose container, the top panels slidably connected to a front wall and a rear wall; and a pair of opposing substantially identical side walls extending perpendicularly from the base, the side walls having a lower portion and an upper portion, the upper portion having a top and a bottom, wherein the top of the container including the two slidable panels meets the bottom of the upper portion of the side wall, wherein the front and the rear walls extend perpendicularly from the base up to where the top having two slidable panels meet the bottom of the upper portion of the side walls, wherein the top having the pair of sildable panels is slidably positioned to open from the front wall, the rear wall, and at least one of the opposed side walls. ### Claim 2 (depends on 1) The portable and stackable plastic multipurpose container of claim 1, wherein the two panels are slidably positioned to open from at least one of a front and a rear of the container. ### Claim 3 (depends on 2) The portable and stackable plastic multipurpose container of claim 2, wherein each of the two panels has a plastic connecting member to close each of the two panels of the container. ### Claim 4 (depends on 1) The portable and stackable plastic multipurpose container of claim 1, wherein a plurality of supporting structures strengthen the base of the container. ### Claim 5 (depends on 4) The portable and stackable plastic multipurpose container of claim 4, wherein the supporting structures are located on the base inside the container and on the base outside the container. ### Claim 6 (depends on 1) The portable and stackable plastic multipurpose container of claim 1 wherein the top two panels have a plurality of tenons to facilitate stacking the portable and stackable plastic multipurpose container. ### Claim 7 (depends on 1) The portable and stackable plastic multipurpose container of claim 1 wherein a bottom of the base of a first container has a plurality of mortise apertures to receive a plurality of tenons from a second container to facilitate the stacking of the containers. ### Claim 8 A portable and stackable plastic multipurpose container comprising: a rectangular base; a top having at least two slidable panels; a pair of opposing substantially identical sidewalls extending perpendicularly from the rectangular base, the sidewalls with a lower portion and with a curved upper portion, the curved upper portion having a top and a bottom, wherein the top having at least two slidable panels is slidably connected to the side walls; and a front wall and a rear wall, each extending from the rectangular base, wherein the top having at least two slidable panels is slidably connected to the front and the rear walls and wherein the top is slidably positioned to open from the front wall, the rear wall, and at least one of the opposed side walls. ### Claim 9 (depends on 8) The portable and stackable plastic multipurpose container of claim 8, wherein the top is slidably positioned to open from either of the front and the rear walls. ### Claim 10 (depends on 9) The portable and stackable plastic multipurpose container of claim 9, wherein each of the at least two top panels has a plastic connecting member to close each side of the container. ### Claim 11 (depends on 8) The rectangular portable and stackable plastic multipurpose container of claim 8, wherein a plurality of supporting structures strengthen the base of the container. ### Claim 12 (depends on 11) The portable and stackable plastic multipurpose container of claim 11, wherein the supporting structures are located on the base inside the container and on the base outside the container. ### Claim 13 (depends on 8) The rectangular portable and stackable plastic multipurpose container of claim 8 wherein the top having the at least two slidable panels has a plurality of tenons to facilitate the stacking of the rectangular portable and stackable plastic multipurpose container. ### Claim 14 (depends on 8) The rectangular portable and stackable plastic multipurpose container of claim 8 wherein a bottom of the base has a plurality of mortise apertures to receive a plurality of tenons to facilitate the stacking of the containers. ### Claim 15 (depends on 8) The rectangular portable and stackable plastic multipurpose container of claim 8 wherein the container is made of polyolefin. ### Claim 16 (depends on 15) The rectangular portable and stackable plastic multipurpose container of claim 15 wherein the container is made of polypropylene. ### Claim 17 (depends on 15) The rectangular portable and stackable plastic multipurpose container of claim 15, wherein the container is made of polyethylene. ### Claim 18 (depends on 8) The rectangular portable and stackable plastic multipurpose container of claim 8 wherein a perpendicular extension is attached to one of the pair of opposing side walls, said extension having an aperture through which wires or poles can be inserted to assist in the stacking of the rectangular portable and stackable plastic multipurpose container. ### Claim 19 A portable and stackable plastic multipurpose container comprising: a square base; a top, the top having a pair of slidable panels; a pair of opposed substantially identical side walls extending perpendicularly from the base, the sidewalls having a lower portion and a curved upper portion, the upper portion having a top and a bottom wherein the top having the pair of slidable panels is connected to the side walls; and a front and a rear wall, each wall extending from the base to a point where the top having the pair of slidable panels meets the bottom of the curved upper portion of the side walls wherein the top having the pair of slidable panels is slidably positioned to open from the front wall, the rear wall, and at least one of the opposed side walls. ### Claim 20 (depends on 19) The square portable and stackable plastic multipurpose container of claim 19, wherein the top having the pair of slidable panels is slidably positioned to open from the pair of opposed sidewalls, from the front wall, and from the rear wall. ### Claim 21 (depends on 19) The square portable and stackable plastic multipurpose container of claim 19, wherein a plurality of supporting structures strengthen the base of the container. ### Claim 22 (depends on 21) The square portable and stackable plastic multipurpose container of claim 21, wherein the supporting structures are located on the base inside the container and on the base outside the container. ### Claim 23 (depends on 19) The square portable and stackable plastic multipurpose container of claim 19, wherein each panel of the top having the pair of slidable panels has a plastic connecting member to close each panel to one of the front and the rear walls. ### Claim 24 (depends on 19) The square portable and stackable plastic multipurpose container of claim 19, wherein the top has a plurality of tenons which facilitates stacking. ### Claim 25 (depends on 19) The square portable and stackable plastic multipurpose container of claim 19, wherein a bottom of the base has a plurality of mortise apertures to receive a plurality of tenons to facilitate stacking of the containers. ### Claim 26 (depends on 19) The square portable and stackable plastic multipurpose container of claim 19, wherein the container is made of polyolefin. ### Claim 27 (depends on 26) The square portable and stackable plastic multipurpose container of claim 26, wherein the container is made of polypropylene. ### Claim 28 (depends on 26) The square portable and stackable plastic multipurpose container of claim 26, wherein the container is made of polyethylene. ### Claim 29 A stack of portable and stackable multipurpose containers comprising: a rectangular base; a top having at least two slidable panels; a pair of opposing substantially identical side walls extending perpendicularly from the rectangular base with a lower portion and with a curved upper portion, the upper portion having a top and a bottom wherein the top having at least two slidable panels is slidably connected to the side walls; and a front and rear wall, each extending from the rectangular base wherein the top having at least two slidable panels is slidably positioned to open from the front wall, the rear wall, and the two opposed sidewalls, wherein for each set of a plurality of containers, a plurality of tenons of a first container are inserted in a plurality of mortise apertures of a bottom of the base of a second container. ### Claim 30 A stack of portable and stackable multipurpose containers comprising: a square base; a top, the top having a pair of slidable panels; a pair of opposed substantially identical side walls extending perpendicularly from the base, the sidewalls having a lower portion and a curved upper portion, the upper portion having a top and a bottom wherein the top is slidably connected to the side walls; and a front and a rear wall, each wall extending from the base to a point where the top having the pair of slidable panels of the container meets the bottom of the curved upper portion of the side walls, the top having the pair of slidable panels slidably positioned to open from the front wall, the rear wall, and at least one of the opposed side walls, wherein for each set of a plurality of containers, a plurality of tenons of a first container has been inserted in the plurality of mortise apertures of the bottom of the base of a second container. ### Claim 31 (depends on 30) The square portable and stackable plastic multipurpose container of claim 30, wherein a flange is attached to a side wall, the flange having an aperture through which wires or poles can be inserted to assist in the stacking of the square portable and stackable plastic multipurpose container.