# US 10,946,247 B1 · Unstable surface training apparatus and method of use thereof > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,946,247 B1 - Document ID: US10946247B1 - Status: Granted - Kind: B1 - Application number: 15/706,318 - Filed: 2017-09-15 - Granted: 2021-03-16 - Earliest claimed: 2016-09-15 - Applicants: Robert Burton - Inventors: Robert Burton - Web page: https://patentgrep.com/patent/US10946247B1 ## CPC - A63B 26/003: {for improving balance or equilibrium (balance beams A63B4/00; apparatus for rope dancing A63B7/08; balancing drums, balancing boards or the like A63B22/16)} - A63B 21/023: {Wound springs} - A63B 21/4034: {for operation by feet} - A63B 21/4047: {Pivoting movement (weight pivoting A63B21/0615)} - A63B 22/0015: {with an adjustable movement path of the support elements} - A63B 22/0046: {Details of the support elements or their connection to the exercising apparatus, e.g. adjustment of size or orientation (attachments of resisters or weights to the body of the user A63B21/4001; using rollers, wheels, castors or gliding means to be moved over the floor or guide tracks A63B22/20)} - A63B 71/0054: {Features for injury prevention on an apparatus, e.g. shock absorbers (mats or the like for absorbing shocks for jumping A63B6/00)} - A63B 69/0093: {for surfing, i.e. without a sail; for skate or snow boarding} - A63B 2022/0092: {for training agility or co-ordination of movements} - A63B 2071/0072: {Limiting the applied force, torque, movement or speed} - A63B 2071/0694: {Visual indication, e.g. Indicia} - A63B 2225/09: Adjustable dimensions - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract The present disclosure relates, in one embodiment, to an unstable surface training apparatus. The apparatus may include a platform that is pivotally connected to a support member about the pivot axis. The apparatus may include at least one user handle that is adjustably connected to the platform. The platform may be freely pivotable about the pivot axis up to a maximum degree of rotation. Some embodiments of the exercise apparatus may include an base upon which the support member is connected. The base provides the exercise apparatus with increased stability. Other embodiments of the exercise apparatus may include a rotational restriction assembly disposed between the support member and the platform for limiting the maximum degree of rotation. ## Claims ### Claim 1 An exercise apparatus for unstable surface training comprising: a support member; an intermediate member having an upper surface that is flat, the intermediate member being pivotally connected to the support member about a pivot axis, through a pivotal connection member, the pivotal connection member coupled to the support member and arranged perpendicularly in contact with the intermediate member such that the pivotal connection member intersects through a plane defined by and parallel with the flat upper surface; and at least one user engagement member adjustably connected to the intermediate member, the at least one user engagement member comprising a first mounting extension, a second mounting extension, and a first handle having a first end and a second end, the first handle connected to the first mounting extension at the first end and the second mounting extension at the second end. ### Claim 2 (depends on 1) The exercise apparatus of claim 1, wherein the intermediate member is pivotable up to a maximum threshold angle about the pivot axis. ### Claim 3 (depends on 1) The exercise apparatus of claim 1, further comprising an elongate base attached to the support member to increase stabilization of the exercise apparatus. ### Claim 4 (depends on 3) The exercise apparatus of claim 3, wherein the intermediate member includes at least one vertical plate extending parallel with the support member. ### Claim 5 (depends on 4) The exercise apparatus of claim 4, further comprising a rotational restriction assembly disposed between the support member and the intermediate member. ### Claim 6 (depends on 3) The exercise apparatus of claim 3, further comprising at least one user stabilization handle connected to the base attached and extending upwardly therefrom. ### Claim 7 (depends on 6) The exercise apparatus of claim 6, comprising a first user stabilization handle and a second user stabilization handle, the first user stabilization handle attached to a first corner of the elongate base, and the second user stabilization handle attached to a second corner of the elongate base, wherein the first corner and second corner are on the same side of the intermediate member with respect to a length of the intermediate member. ### Claim 8 (depends on 1) The exercise apparatus of claim 1, wherein: the intermediate member has a length perpendicular to the pivot axis; the intermediate member includes a row of holes defined in the intermediate member, the row of holes extending along at a portion of the length of the intermediate member. ### Claim 9 (depends on 1) The exercise apparatus of claim 1, wherein the at least one user engagement member further comprises a second handle attached to the same first mounting extension as the first handle, the second handle positioned at an acute angle relative to the first handle. ### Claim 10 (depends on 1) The exercise apparatus of claim 1, wherein the intermediate member is biased toward a rest position. ### Claim 11 (depends on 10) The exercise apparatus of claim 10, wherein the intermediate member is biased toward the rest position by at least one spring. ### Claim 12 (depends on 11) The exercise apparatus of claim 11, wherein the intermediate member has multiple connection points, the spring configured to connect to the intermediate member at a given connection point of the multiple connection points. ### Claim 13 A method of adjusting an exercise apparatus for unstable surface training, the method comprising: (a) providing an intermediate member pivotable about a pivot axis, through a pivotal connection member that is coupled to a support member, the intermediate member including a flat upper surface transverse to a surface of the support member, the pivotal connection member arranged perpendicularly in contact with the intermediate member such that the pivot axis extends through a first plane defined by the surface of the support member, and the pivotal connection member intersects through a second plane defined by and parallel with the flat upper surface; (b) providing at least one user engagement member secured to the intermediate member, wherein the at least one user engagement member comprises at least one mounting extension, the at least one mounting extension secured to the intermediate member via a pin; (c) moving the at least one user engagement member along the length of the intermediate member from a first position to a second position; and (d) securing the at least one user engagement member in the second position. ### Claim 14 (depends on 13) The method of claim 13, further comprising freeing the user engagement member from the first position. ### Claim 15 An exercise apparatus for unstable surface training comprising: a support member; an intermediate member pivotally connected to the support member about a pivot axis, the intermediate member including at least one vertical plate extending parallel with the support member; at least one user engagement member adjustably connected to the intermediate member; and a rotational restriction assembly comprising a plurality of apertures defined in the support member and a lock pin connected to the vertical plate of the intermediate member, the lock pin configured to engage a given aperture of the plurality of apertures. ### Claim 16 (depends on 15) The exercise apparatus of claim 15, wherein the plurality of apertures includes at least one arcuate slot.