# US 11,077,008 B2 · Massage device and system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,077,008 B2 - Document ID: US11077008B2 - Status: Granted - Kind: B2 - Application number: 15/501,429 - Filed: 2015-08-06 - Published: 2017-08-17 - Granted: 2021-08-03 - Earliest claimed: 2014-08-06 - Assignees: Polar Fusion LLC - Applicants: Polar Fusion LLC - Inventors: Spring S. Faussete - Web page: https://patentgrep.com/patent/US11077008B2 ## CPC - A61H 1/008: {Apparatus for applying pressure or blows almost perpendicular to the body or limb axis, e.g. chiropractic devices for repositioning vertebrae, correcting deformation} - A61H 7/001: {without substantial movement between the skin and the device} - A61H 15/00: Massage by means of rollers, balls, e.g. inflatable, chains, or roller chains - A63B 39/00: Hollow non-inflatable balls {, i.e. having no valves (rigid balls A63B37/00)} - A61H 2015/0014: {cylinder-like, i.e. rollers} - A61H 2201/0107: modular - A61H 2201/168: not moving - A61H 2201/1685: interchangeable - A63B 2039/003: {substantially hollow and pressureless} - A61H: PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY (electrotherapy, magnetotherapy, radiation therapy or ultrasound therapy A61N) - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract A massage kit having a foam roller, a massage device, and a removable cover. The massage device includes a flat bottom surface with a curved top surface. Protrusions extend from the massage device and are configured to interact with the removable cover to hold the cover in place on the top surface or the bottom surface of the massage device. The roller includes an opening sized and dimensioned to receive the massage device. ## Claims ### Claim 1 A massage device, comprising: a main body having a bottom end portion and a top end portion, the bottom end portion having flat and planar longitudinal sidewalls, the bottom end portion further including a flat and planar bottommost surface defined by an outermost edge, and the top end portion having a circular planform shape; a first recess in the flat and planar bottommost surface of the main body and having a first volume; a second recess in the flat and planar bottommost surface of the main body, the second recess having a second volume less than the first volume; a peripheral ridge extending laterally outward from the outermost edge of the bottom end portion of the main body; wherein the top end portion includes an uppermost tip and the main body tapers from the peripheral ridge to the uppermost tip; and a base portion including an outermost edge and an outer lip extending laterally outward from the outermost edge of the base portion, the outer lip having a longitudinal portion and a lateral portion that extends radially inward from the longitudinal portion toward the outermost edge of the base portion, the base portion including a top surface and a protrusion extending longitudinally from the top surface, the protrusion being integrally formed with the base portion, the protrusion configured to be received in the second recess in the flat and planar bottommost surface of the main body, the base portion further including an opening through the base portion, the opening configured to align and be in fluid communication with the first recess in the flat and planar bottommost surface of the main body, wherein the outer lip of the base portion is configured to engage the peripheral ridge of the main body to secure the base portion to the main body with the outer lip of the base portion positioned laterally outward from the main body. ### Claim 2 (depends on 1) The massage device of claim 1 wherein the first recess has a cross-sectional shape comprising a rectangle, and the main body includes the bottom end portion and the top end portion as a single, integral, unitary structure with a sidewall. ### Claim 3 (depends on 1) The massage device of claim 1 wherein the protrusion includes a single elongate strip of material extending longitudinally relative to the base portion and three strips of material that are centered on and intersect the elongate strip, wherein the three strips of material extend laterally relative to the single elongate strip and are spaced from each other along the single elongate strip. ### Claim 4 (depends on 1) The massage device of claim 1 wherein the main body is coupleable to the base portion with the protrusion positioned within the second recess and frictionally engaged with outer walls of the second recess. ### Claim 5 (depends on 1) The massage device of claim 1 wherein the main body is coupleable to the base portion with the protrusion positioned within the second recess and the base portion frictionally secured to the main body. ### Claim 6 (depends on 1) The massage device of claim 1, further comprising an adhesive on the protrusion that secures the main body to the base portion. ### Claim 7 (depends on 1) The massage device of claim 1 wherein the opening through the base portion is positioned centrally with respect to the base portion, the base portion further including an inner lip surrounding the central opening of the base portion. ### Claim 8 (depends on 7) The massage device of claim 7 wherein the inner lip has a longitudinal portion that is shorter than the longitudinal portion of the outer lip, wherein the main body is coupleable to the base portion with the inner lip extending into the first recess of the main body. ### Claim 9 A massage device kit, comprising: a main body having a bottom end portion and a top end portion with a dome shape, the bottom end portion having a bottommost surface having four sides and defined by an outermost edge, the main body including a cavity extending into the bottommost surface having a first volume, the cavity open to an external environment, the main body further including a plurality of recesses in the bottommost surface of the main body positioned about the cavity with one of the plurality of recesses positioned in each of the four sides of the bottommost surface and each of the plurality of recesses having a second volume that is less than the first volume; a peripheral ridge extending laterally outward from the outermost edge of the bottom end portion of the main body; wherein the top end portion includes an uppermost tip and the main body tapers from the peripheral ridge to the uppermost tip; a first base portion including an outermost edge and a first outer lip extending laterally outward from the outermost edge of the first base portion, the first base portion further including a first bottom surface having a first coefficient of friction and a first opening configured to be aligned with the cavity of the main body, the first outer lip configured to engage the peripheral ridge to secure the first base portion to the main body, the first base portion having a plurality of first protrusions configured to be received in the plurality of recesses of the main body, the plurality of first protrusions being integrally formed with the first base portion; and a second base portion including an outermost edge and a second outer lip extending laterally outward from the outermost edge of the second base portion, the second base portion further including a second bottom surface having a second coefficient of friction different from the first coefficient of friction and a second opening configured to be aligned with the cavity of the main body, the second outer lip configured to engage the peripheral ridge to secure the second base portion to the main body, the second base portion including a plurality of second protrusions configured to be received in the plurality of recesses of the main body, the plurality of second protrusions being integrally formed with the second base portion; wherein the first base portion and the second base portion are structured to be interchangeably coupleable to the main body with the cavity of the main body remaining open to the external environment through either the first opening of the first base portion or the second opening of the second base portion. ### Claim 10 (depends on 9) The massage device kit of claim 9 wherein the first base portion includes a first top surface with the plurality of first protrusions extending longitudinally from the first top surface, and the second base portion includes a second top surface with the plurality of second protrusions extending longitudinally from the second top surface. ### Claim 11 (depends on 10) The massage device kit of claim 10 wherein the plurality of first protrusions each include a longitudinal strip of material with a first distal side and a second distal side across a width of the longitudinal strip of material, a first lateral strip centered on and disposed at the first distal side, a second lateral strip centered on and disposed at the second distal side, and a third lateral strip centered on and disposed through a center of the longitudinal strip. ### Claim 12 (depends on 10) The massage device kit of claim 10 wherein the first base portion includes a first inner lip configured to extend into the cavity of the main body. ### Claim 13 (depends on 9) The massage device kit of claim 9 wherein the first opening is centered with respect to the first base portion, the first base portion including a first inner lip surrounding the first opening, and the second opening is centered with respect to the second base portion, the second base portion including a second inner lip surrounding the second opening. ### Claim 14 (depends on 9) The massage device kit of claim 9 wherein the plurality of recesses of the main body are centered on each of the four sides of the bottommost surface of the main body. ### Claim 15 (depends on 9) The massage device kit of claim 9 wherein the main body includes a sidewall, the plurality of recesses extending from the bottommost surface of the main body into the sidewall of the main body. ### Claim 16 A method of assembling a massage device, comprising: inserting a peripheral ridge extending laterally outward from an outermost edge of a square-shaped bottom end portion of a dome-shaped main body of the massage device into an outer lip of a base portion, wherein a top end portion of the dome-shaped main body includes an uppermost tip and the main body tapers from the peripheral ridge to the uppermost tip, the outer lip including a longitudinal portion extending laterally outward from an outermost edge of the base portion and a lateral portion coupled to the longitudinal portion extending radially inward from the longitudinal portion toward the outermost edge; inserting a plurality of protrusions extending longitudinally from the base portion and being integrally formed with the base portion into a plurality of first recesses in a flat and planar bottommost surface of the main body having four sides, the plurality of first protrusions having a size and a shape corresponding to the plurality of first recesses and each of the plurality of first recesses having a first volume, the plurality of first recesses spaced about a second recess in the flat and planar bottommost surface of the main body with one first recess of the plurality of first recesses in each of the four sides of the flat and planar bottommost surface of the main body; setting the main body down on the base portion so that an outer surface of the bottom end portion is bounded by the outer lip of the base portion; and manipulating the outer lip of the base portion so the lateral portion of the outer lip covers the entirety of the peripheral ridge of the main body, including aligning an opening through the base portion with a second recess in the flat and planar bottommost surface of the main body of the massage device such that the second recess remains open to an external environment following coupling of the base portion to the main body, the second recess having a second volume greater than the first volume. ### Claim 17 (depends on 16) The method of claim 16 wherein manipulating the outer lip of the base portion so the lateral portion of the outer lip covers the entirety of the peripheral ridge of the main body comprises securing the base portion to the main body. ### Claim 18 (depends on 16) The method of claim 16, wherein setting the main body down on the base portion comprises setting the main body down on the base portion so that an inner surface of the bottom end portion is bounded by an inner lip of the base portion with the inner lip of the base portion extending into the hollow interior of the main body. ### Claim 19 (depends on 16) The method of claim 16, further comprising before inserting the peripheral edge: selecting the base portion from a first base portion including a first bottom surface having a first coefficient of friction and a second base portion including a second bottom surface having a second coefficient of friction. ### Claim 20 (depends on 19) The method of claim 19 wherein the selecting is based on a third coefficient of friction of a surface on which the massage device is to be used.