# US 11,992,142 B2 · No-dig mailbox > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,992,142 B2 - Document ID: US11992142B2 - Status: Granted - Kind: B2 - Application number: 16/949,931 - Filed: 2020-11-20 - Published: 2021-05-27 - Granted: 2024-05-28 - Earliest claimed: 2019-11-22 - Assignees: The Simplay3 Company - Applicants: The Simplay3 Company - Inventors: John Hradisky; Keary Knerem - Web page: https://patentgrep.com/patent/US11992142B2 ## CPC - A47G 29/1216: {Supports} - F16M 11/22: with approximately constant height, e.g. with constant length of column or of legs (F16M11/42 takes precedence) - A47G: HOUSEHOLD OR TABLE EQUIPMENT (book-ends A47B5/00; knives B26B) - F16M: FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS ## Abstract A mailbox assembly that may be provided on a surface and freely movable by an end user from one location to another without digging a hole for the post. The mailbox assembly includes a post, a mail receptacle on an upper poste end, and a base on a lower base end. The base includes one or more hollow cavities for retaining ballast material to thereby move a center of gravity of the mailbox assembly towards the bottom surface, such that the mailbox can withstand 100 N of force applied perpendicular to the post without toppling. The post may also have one or more cavities for holding ballast material. ## Claims ### Claim 1 A mailbox assembly comprising: a post; a receptacle provided on the post; and a base provided at a bottom end of the post, the base having a bottom surface and one or more hollow cavities for retaining ballast material to thereby move a center of gravity of the mailbox assembly towards the bottom surface, wherein a width of the base measurable along the bottom surface of the base is at least 1.5 times greater than a distance between the bottom surface and a center of gravity of the mailbox assembly such that the mailbox assembly can withstand 100 N of force applied perpendicular to the post without toppling, wherein the base further comprises: a first and second part that, when connected together, define a channel within which the bottom end of the post is mountable, wherein the first part and the second part are separable from each other to expose a first and second interlocking face, respectively, the first and second interlocking face at least partially defining the channel when in contact with each other. ### Claim 2 (depends on 1) The mailbox assembly of claim 1, wherein, upon separating the first and second parts, the bottom end of the post is positionable in or removable from a portion of the channel defined in the first or second interlocking face. ### Claim 3 (depends on 1) The mailbox assembly of claim 1, wherein the first and second interlocking face are transverse to the bottom surface. ### Claim 4 (depends on 1) The mailbox assembly of claim 1, wherein the first and second interlocking face have complimentary shapes such that they may be connected together. ### Claim 5 (depends on 1) The mailbox assembly of claim 1, wherein the post, the receptacle, and the base together weigh approximately 16 pounds. ### Claim 6 (depends on 5) The mailbox assembly of claim 5, wherein the one or more hollow cavities is sized to retain approximately 100 pounds of ballast material. ### Claim 7 (depends on 1) The mailbox assembly of claim 1, wherein the post is integral with the receptacle. ### Claim 8 (depends on 1) The mailbox assembly of claim 1, wherein the post includes a hollow cavity for retaining ballast material. ### Claim 9 (depends on 8) The mailbox assembly of claim 8, wherein the hollow cavity of the post is in fluid communication with at least one of the one or more hollow cavities of the base. ### Claim 10 A mailbox assembly comprising: a post; a receptacle provided on the post; and a base provided at a bottom end of the post, the base having at least two separable parts that, when connected together, define a channel within which the bottom end of the post is securable, wherein the at least two separable parts having one or more hollow cavities for retaining ballast material, wherein separating the first part from the second part exposes a first and second interlocking face, respectively, the first and second interlocking face at least partially defining portions of the channel. ### Claim 11 (depends on 10) The mailbox assembly of claim 10, wherein a width of the base measurable along a bottom surface of the base is at least 1.5 times greater than a distance between the bottom surface and a center of gravity of the mailbox assembly such that the mailbox assembly can withstand 100 N of force applied perpendicular to the post without toppling. ### Claim 12 (depends on 10) The mailbox assembly of claim 10, wherein, upon separating the first and second parts, the bottom end of the post is positionable in or removable from the portion of the channel defined in the first or second interlocking face. ### Claim 13 (depends on 10) The mailbox assembly of claim 10, wherein the first and second interlocking face are transverse to a bottom surface of the base. ### Claim 14 (depends on 10) The mailbox assembly of claim 10, wherein the first and second interlocking face have complimentary shapes such that they may be connected together. ### Claim 15 (depends on 10) The mailbox assembly of claim 10, wherein the post includes a hollow cavity for retaining ballast material. ### Claim 16 (depends on 15) The mailbox assembly of claim 15, wherein the hollow cavity of the post is in fluid communication with at least one of the one or more hollow cavities of the base.