# US 2014/0195009 A1 · Ground contact device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0195009 A1 - Document ID: US20140195009A1 - Status: Published application - Kind: A1 - Application number: 14/150,645 - Filed: 2014-01-08 - Published: 2014-07-10 - Earliest claimed: 2013-01-09 - Inventors: Travis GREEN - Web page: https://patentgrep.com/patent/US20140195009A1 ## CPC - A61F 2/66: Feet; Ankle joints - Y10T 29/49204: Contact or terminal manufacturing - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract A ground contact device having a module with at least a portion of the module's outer surface being curved. The ground contact device also having a planar surface, oriented in a plane parallel to a surface suitable for walking, on the module's inside surface. In addition, the planar surface contains a plurality of prosthetic mount holes. ## Claims ### Claim 1 A ground contact device, comprising: a first module having at least a portion with a curved outer surface, comprising: a first planar surface in an interior of the first module, and a plurality of prosthetic mount holes located in the first planar surface; and a second module coupled to the outside of the first planar surface, comprising: a second planar surface having a periphery coextensive with a periphery of the first planar surface; and at least a portion with a round shape. ### Claim 2 (depends on 1) The ground contact device according to claim 1, wherein the first module defines: a plurality of openings through a wall of the first module. ### Claim 3 (depends on 1) The ground contact device according to claim 1, wherein at least a portion of at least one of the prosthetic mount holes is threaded. ### Claim 4 (depends on 1) The ground contact device according to claim 1, wherein at least a portion of an outer layer of the first and second modules is roughened. ### Claim 5 (depends on 1) The ground contact device according to claim 1, wherein at least a portion of an outer layer of the first module is roughened. ### Claim 6 (depends on 1) The ground contact device according to claim 1, wherein at least a portion of an outer layer of the second module is roughened. ### Claim 7 (depends on 1) The ground contact device according to claim 1, wherein the first module comprises: a flange extending beyond a rim of the first module. ### Claim 8 (depends on 1) The ground contact device according to claim 1, wherein the first module is at least partially cylindrical. ### Claim 9 (depends on 1) The ground contact device according to claim 1, wherein the first module is at least partially elliptical in shape. ### Claim 10 (depends on 1) The ground contact device according to claim 1, further comprising: a prosthetic mount coupled to the first planar surface. ### Claim 11 (depends on 1) The ground contact device according to claim 1, further comprising: a Ferrier Coupler coupled to the first planar surface. ### Claim 12 (depends on 8) The ground contact device according to claim 8, further comprising; a Ferrier Coupler coupled to the prosthetic mount. ### Claim 13 A ground contact device, comprising: a module having at least a portion with a curved outer surface, comprising: a planar surface inside the module, the planar surface oriented in a plane normal to a longitudinal axis of the module, and a plurality of prosthetic mount holes located in the planar surface. ### Claim 14 (depends on 13) The ground contact device according to claim 13, wherein the module defines: a plurality of slits through a wall of the module. ### Claim 15 (depends on 13) The ground contact device according to claim 13, wherein at least a portion of at least one of the prosthetic mount holes is threaded. ### Claim 16 (depends on 13) The ground contact device according to claim 13, wherein at least a portion of an outer layer of the module is roughened. ### Claim 17 (depends on 13) The ground contact device according to claim 13, wherein the first module comprises: a flange extending beyond a rim of the module. ### Claim 18 (depends on 13) The ground contact device according to claim 13, further comprising: a prosthetic mount coupled to the planar surface. ### Claim 19 (depends on 13) The ground contact device according to claim 13, further comprising: a Ferrier Coupler coupled to the planar surface. ### Claim 20 (depends on 18) The ground contact device according to claim 18, further comprising; a Ferrier Coupler coupled to the prosthetic mount. ### Claim 21 A method for manufacturing a ground contact device comprising: obtaining a template of a module having at least a portion with a curved outer surface, the module comprising: a planar surface in an interior of the module, and a plurality of prosthetic mount holes located in the planar surface; and using an additive manufacturing apparatus to manufacture the module from the template. ### Claim 22 A method for using a ground contact device, comprising: attaching a ground contact device to a prosthetic mount, the ground contact device comprising: a module having at least a portion with a curved outer surface, comprising: a planar surface in an interior of the module, and a plurality of prosthetic mount holes located in the planar surface; attaching the prosthetic mount to a Ferrier coupler; and attaching the Ferrier coupler to a socket. ### Claim 23 (depends on 22) The method according to claim 22, wherein a user using the ground contact device transitions the user's legs from a position substantially parallel to a surface, to a position substantially perpendicular to the surface. ### Claim 24 (depends on 23) The method according to claim 23, wherein the curved outer surface of the ground contact device is rolled against a support to change the position of the user's legs. ### Claim 25 (depends on 23) The method according to claim 23, wherein the curved outer surface of the ground contact device is rolled against a surface to change the position of the user's legs. ### Claim 26 (depends on 1) The ground contact device according to claim 1, wherein an outer surface of the first module and/or second module includes waves, bumps or nipples. ### Claim 27 (depends on 1) The ground contact device according to claim 1, further comprising an attachment coupled to the first module, the attachment including a protrusion extending outwardly from the first module.