# US 11,896,864 B2 · Rotation resistant exercise device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,896,864 B2 - Document ID: US11896864B2 - Status: Granted - Kind: B2 - Application number: 17/300,796 - Filed: 2021-11-09 - Published: 2023-05-11 - Granted: 2024-02-13 - Earliest claimed: 2021-11-09 - Applicants: David E. Pitcher; Clint W. DeBerry - Inventors: David E. Pitcher; Clint W. DeBerry - Web page: https://patentgrep.com/patent/US11896864B2 ## CPC - A63B 21/00069: {Setting or adjusting the resistance level; Compensating for a preload prior to use, e.g. changing length of resistance or adjusting a valve} - A63B 21/4049: {Rotational movement} - A63B 21/015: including rotating or oscillating elements {rubbing against fixed elements} - A63B 21/22: Resisting devices with rotary bodies {(A63B21/0608 takes precedence)} - A63B 21/4035: {for operation by hand} - A63B 23/12: for upper limbs {or related muscles, e.g. chest, upper back or shoulder muscles (bench press exercises A63B21/078; for teaching music G09B15/06)} - A63B 23/14: for wrist joints - A63B 21/023: {Wound springs} - A63B 21/4047: {Pivoting movement (weight pivoting A63B21/0615)} - 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: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract An exercise device designed to strengthen the entire body, with particular focus on the upper body. The device facilitates the strengthening of the core, chest, back, shoulder, and arm muscles, and in particular muscles that move the core in the transverse plane. The device consists of two hemispherical shells, both of which have handles attached via risers. This allows the device to be gripped either by the spherical surfaces, by the handles, or a combination thereof. The hemispheres are attached to each other by means of a shaft with a variable braking mechanism. The braking mechanism can provide levels of rotational resistance from almost zero to virtually impossible to rotate, with the resistance level visibly indicated on the exterior of the device. The resistance level is changed by repeatedly rotating the two halves against each other in one direction or the other. ## Claims ### Claim 1 A portable full body exercise device comprising: a palm-grippable hollow first housing rotatively engaging a palm-grippable hollow, gauge bearing second housing, wherein the first housing and the second housing are rotatively and biasedly engaged with one another, and wherein the first housing and the second housing are monitorably and rotatively adjustable with respect to one another to permit a user-enabled gauge-indicated increase or decrease display of angular rotational resistance with respect to one another. ### Claim 2 (depends on 1) The exercise device as recited in claim 1, wherein the first housing and the second housing are connected to one another by an elongated bolt. ### Claim 3 (depends on 2) The exercise device as recited in claim 2, wherein an elongated compressive spring is disposed about the elongated bolt, and wherein the elongated spring has a first end thereof compressed against a second hub in the second housing and the elongated spring has a second end compressed against a washer and a nut arrangement around the bolt in the second housing. ### Claim 4 (depends on 3) The exercise device as recited in claim 3, wherein a first hub is arranged in the first housing for secure receipt of the first end of the bolt therein, and wherein a friction generating brake material is arranged between the first hub and the second hub to affect rotative resistance therebetween, depending upon the amount of compression generated by the elongated spring thereagainst. ### Claim 5 (depends on 4) The exercise device as recited in claim 4, wherein the second housing is rotatable with respect to the first housing to permit the adjustment of the compressed length of the elongated spring surrounding the elongated bolt, and thus change the effort necessary to rotate the housings with respect to one another. ### Claim 6 (depends on 5) The exercise device as recited in claim 5, wherein changes in the compression spring are indicated by a spring connected gauge on the outside of the second housing. ### Claim 7 (depends on 1) The exercise device as recited in claim 1, wherein the first housing and the second housing are each of hemispherical shape. ### Claim 8 An exercise device arranged to enable concomitant muscular engagement of core, chest, back, shoulders, hips and lower body muscles, and arms and hands, the device comprising: a first and a second hemispherical housing arrangement resistively rotationally joined about an elongated bolt having a first end secured within the first hemispherical housing and a second end secured to the second hemispherical housing; a rotationally resistive mechanism arranged about the elongated bolt having a second end rotatively arranged within an inner portion of the second hemispherical housing and a first end of the elongated bolt secured to an inner portion of the first hemispherical housing; a compression adjustment mechanism arranged between the first and second hemispherical housings to enable adjustable changing of rotational resistance between the first and the second hemispherical housings; and a first and a second user-gripping-means on both the first and the second hemispherical housings to enable the device user to use a different gripping manner on each respective hemispherical housing of the device. ### Claim 9 (depends on 8) The exercise device as recited in claim 8, wherein the first user-gripping-means comprises a handle attached to the first and the second hemispherical housings. ### Claim 10 (depends on 9) The exercise device as recited in claim 9, wherein the second user gripping means comprises a palm engageable surface on each hemispherical housing. ### Claim 11 (depends on 8) The exercise device as recited in claim 8, wherein the rotationally resistive mechanism arranged about the elongated bolt comprises an adjustable second hub secured to the second hemispherical housing and a first stationary hub secured to the first hemispherical housing, with a compressible braking material arranged between the first hub and the second hub to effect rotational resistance therebetween. ### Claim 12 (depends on 8) The exercise device as recited in claim 8, wherein the compression adjustment mechanism includes a radially extending indicator bracket to externally display the existing rotational resistance of the compression adjustment mechanism. ### Claim 13 A spherically shaped, opposed palm-grippable exercise sphere, the exercise sphere comprising: a first hemispherically shaped housing and a second hemispherically shaped housing rotatably connected together by an elongated bolt, the elongated bolt having a first end secured within a first inner hub secured within the first housing, the elongated bolt having a second end secured within an elongated nut which elongated nut is secured within an anti-rotational sleeve within the second housing; a second inner hub secured to the second housing, with a compressive spring arranged around the elongated bolt, the compressive spring disposedly spaced between the second inner hub and the elongated nut so as to enable the bias of the second inner hub towards or away from the first inner hub; and a disk-shaped annular brake member arranged in an annulus between the first inner hub and the second inner hub so as to create an adjustable controlled rotational resistance between the first housing and the second housing when a user generates rotation between the first housing and the second housing. ### Claim 14 (depends on 13) The spherically shaped, opposed palm-grippable exercise sphere as recited in claim 13, wherein the anti-rotational sleeve has a position indicating bracket attached to a side thereof. ### Claim 15 (depends on 14) The spherically shaped, opposed palm-grippable exercise sphere as recited in claim 14, wherein the position indicating bracket has a protrusion on a distal end thereof which extends through the second housing to indicate to the user the pre-existing tension within the exercise sphere. ### Claim 16 (depends on 13) The spherically shaped, opposed palm-grippable exercise sphere as recited in claim 13, wherein the annular brake member is free-floating within the annulus between the first inner hub in the second inner hub until it is compressed therebetween by the compressive spring. ### Claim 17 (depends on 13) The spherically shaped, opposed palm-grippable exercise sphere as recited in claim 13, wherein the elongated nut secured within the anti-rotation sleeve permits a change in rotational resistance by a compression change in the compression spring against the second hub when the second housing is rotated with respect to the first housing. ### Claim 18 A spherically shaped exercise device having a first half and a second half, arranged to enable concomitant muscular engagement of core, chest, back, shoulders, hips and lower body muscles, and arms and hands, by palm-facing-palm engagement of respective ends of the device, the device comprising: a first and a second hemispherical-shaped palm-to-palm-facing-enabled grippable housing arrangement resistively rotationally joined about an elongated bolt having a first end secured to the first hemispherical housing and a second end secured to the second hemispherical housing; a rotationally resistive mechanism arranged about the elongated bolt having a second end rotatively arranged within an inner portion of the second hemispherical housing and a first end of the elongated bolt secured to an inner portion of the first hemispherical housing; a compressive adjustment mechanism arranged between the first and second hemispherical housings to enable adjustable changing of rotational resistance between the first and the second hemispherical housings. ### Claim 19 (depends on 18) The exercise device as recited in claim 18, wherein the first and the second hemispherical housing each have a gripping handle extending therefrom to enable rotation of the first and the second hemispherical housing to be positionally adjusted and grippingly rotated with respect to one another by a user thereof. ### Claim 20 (depends on 18) The exercise device as recited in claim 18 wherein the first and the second hemispherical housing each have a hemispherically-shaped palm-engageable gripping material covering an outer portion of each respective hemispherical housing to enable a further open palm gripping on each respective first or second hemispherical housing. ### Claim 21 (depends on 18) The exercise device as recited in claim 18, wherein the first end of the elongated bolt is secured to a first annular hub in the first hemispherical housing. ### Claim 22 (depends on 21) The exercise device as recited in claim 21, wherein the rotationally resistive mechanism arranged about the elongated bolt comprises a compressive spring arranged longitudinally there around, wherein the compressive spring biases against a second annular hub, the second annular hub being secured to the second hemispherical housing. ### Claim 23 (depends on 22) The exercise device as recited in claim 22, wherein a rotation resistant brake material is compressively arranged between the first annular hub and the second annular hub to facilitate rotational resistance between the first annular hub and the second annular hub and their respective first and second hemispherical housings. ### Claim 24 A spherically shaped exercise device comprised of an interconnected first hemisphere and a second hemisphere, arranged to enable concomitant muscular engagement of core, chest, back, shoulders, hips and lower body muscles, and arms and hands, by palm-facing-palm engagement of respective ends of the device, the device comprising: a first and a second hemispherical-shaped palm-to-palm-facing-enabled grippable housing arrangement resistively-rotationally joined about an elongated bolt having a first end secured to the first hemispherical housing and a second end secured within the second hemispherical housing, the elongated bolt within the second hemispherical housing having a tabbed washer therearound engaging a rotational resistance indicator bracket, the rotational resistance indicator bracket having a protrusion distally thereon protruding through the second hemispherical housing to indicate relative rotative positioning between the housings, and hence set-identifiable rotational resistance of the exercise device; a rotationally resistive compressive mechanism arranged about the elongated bolt having a second end rotatively arranged within an inner portion of the second hemispherical housing and a first end of the elongated bolt secured to an inner portion of the first hemispherical housing, wherein the rotationally resistive compressive mechanism arranged about the elongated bolt comprises a compressible spring arranged longitudinally there around, wherein the compressible spring is biasable against a second annular hub, the second annular hub being non-rotatively secured within the second hemispherical housing; a first annular hub secured within the first hemispherical housing, with the elongated bolt secured within the first annular hub, and, an annularly-shaped friction inducing compressible brake member rotationally unconstrained, pre-compressed, in an annulus between the second annular hub and the first annular hub; wherein the rotationally resistive compressive mechanism is arranged between the first and second hemispherical housings to enable adjustable changing of rotational resistance between the first and the second hemispherical housings; and wherein the rotationally resistive compressive mechanism arranged about the elongated bolt compresses against both the second annular hub secured to the second hemispherical housing and to the first stationary hub secured to the first hemispherical housing, with the compressible brake member arranged in the annulus between the first hub and the second hub to effect rotational resistance therebetween when biased between the first and second hubs. ### Claim 25 A method of using a portable, personal exercise device, comprising the steps of: arranging a transverse handle on each end of a pair of resistively engaged housings; connecting each housing via a compressively resistant spring arranged longitudinally about an elongated bolt, which bolt connects the housings together; gripping each transverse handle at the respective ends of the exercise device; rotating one handle and housing in one direction and simultaneously rotating the other handle and housing in the opposite direction; and wherein the method includes rotating one housing with respect to the other housing so as to compress or decompress the elongated spring disposed about the elongated bolt between a first hub and a second hub so as to initiate a change in rotative resistance by compressing or decompressing a resistant braking material annularly arranged between the first hub and the second hub, to effect effort requirements for further rotation of the respective housings therewith.