# US 11,998,793 B1 · Detachable strength training device for linemen and other athletes > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,998,793 B1 - Document ID: US11998793B1 - Status: Granted - Kind: B1 - Application number: 17/562,716 - Filed: 2021-12-27 - Granted: 2024-06-04 - Earliest claimed: 2020-12-25 - Applicants: David L. Harrison, II - Inventors: David L. Harrison, II - Web page: https://patentgrep.com/patent/US11998793B1 ## CPC - A63B 21/4035: {for operation by hand} - A63B 21/0442: {Anchored at one end only, the other end being manipulated by the user} - A63B 21/072: Dumb-bells, bar-bells or the like {, e.g. weight discs having an integral peripheral handle} - A63B 21/0724: {Bar-bells; Hand bars} - A63B 21/0728: {with means for fixing weights on bars, i.e. fixing olympic discs or bumper plates on bar-bells or dumb-bells} - A63B 69/002: {for football (American-football dummies A63B69/34)} - A63B 2243/007: American football - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract A detachable strength training device, for football linemen and other athletes, includes a frame structure, a weight bar, and a removable weight assembly. The frame structure includes a peripheral frame and at least one crossbar providing a plurality of grip points. ## Claims ### Claim 1 A detachable strength training device, comprising: (a) a frame structure including: (i) at least a top segment, a bottom segment, a left side segment, and a right sight segment, collectively forming a peripheral frame that defines a central opening, (ii) a plurality of crossbars extending from one segment of the frame structure across the central opening to another segment of the frame structure, and (iii) a barbell support element supported by at least two of the plurality of crossbars, wherein the barbell support element extends from one of the at least two crossbars to another, (iv) wherein the peripheral frame and the plurality of crossbars are co-planar with one another, and (v) wherein a plurality of grip points are provided on the peripheral frame and on the plurality of crossbars; (c) a weight bar; and (d) a removable weight assembly. ### Claim 2 (depends on 1) The detachable strength training device of claim 1, wherein the two crossbars and barbell support element are collectively “H”-shaped. ### Claim 3 (depends on 1) The detachable strength training device of claim 1, wherein the two crossbars and barbell support element are collectively “A”-shaped. ### Claim 4 (depends on 1) The detachable strength training device of claim 1, wherein the barbell support element includes a first coupling, wherein the weight bar includes a second coupling, and wherein the first and second couplings removably mate together such that the weight bar is removable from the frame structure. ### Claim 5 (depends on 4) The detachable strength training device of claim 4, wherein the first coupling includes a keyhole slot, and wherein the second coupling includes a knobbed prong that is removably received in the keyhole slot. ### Claim 6 (depends on 1) The detachable strength training device of claim 1, wherein the removable weight assembly is removably carried on the weight bar. ### Claim 7 (depends on 6) The detachable strength training device of claim 6, wherein the removable weight assembly includes at least one weight and a weight retainer that are removably carried on the weight bar. ### Claim 8 (depends on 7) The detachable strength training device of claim 7, wherein the at least one weight includes a weight plate, having a center hole, and wherein the weight plate is carried on the weight bar via the center hole. ### Claim 9 (depends on 8) The detachable strength training device of claim 8, wherein the at least one weight includes at least two weight plates. ### Claim 10 (depends on 7) The detachable strength training device of claim 7, wherein the weight retainer includes a spring clip. ### Claim 11 (depends on 7) The detachable strength training device of claim 7, wherein the weight retainer includes a ring pin with a detent. ### Claim 12 (depends on 4) The detachable strength training device of claim 4, wherein the weight bar further includes a dumbbell section and a head, wherein the head is interposed between the second coupling and the dumbbell section and is adapted to serve as a backstop for the removable weight assembly and to space the removable weight assembly from the at least two crossbars. ### Claim 13 (depends on 1) The detachable strength training device of claim 1, wherein the peripheral frame is octagonal. ### Claim 14 (depends on 4) The detachable strength training device of claim 4, wherein the first coupling is a threaded female coupling, and wherein the second coupling is a threaded male coupling. ### Claim 15 A detachable strength training device, comprising: (a) a frame structure including: (i) at least a top segment, a bottom segment, a left side segment, and a right sight segment, collectively forming a peripheral frame that defines a central opening, and (ii) a plurality of crossbars extending from one segment of the frame structure across the central opening to another segment of the frame structure, (iii) wherein the peripheral frame and the plurality of crossbars are co-planar with one another, (iv) wherein a plurality of grip points are provided on the peripheral frame and on the plurality of crossbars, and (v) wherein the peripheral frame and at least one crossbar are made of tubular metal and have the same cross-section as one another; (b) a weight bar; and (c) a removable weight assembly. ### Claim 16 (depends on 15) The detachable strength training device of claim 15, wherein the peripheral frame is octagonal. ### Claim 17 A detachable strength training device, comprising: (a) a frame structure including: (i) at least a top segment, a bottom segment, a left side segment, and a right sight segment, collectively forming a peripheral frame that defines a central opening, (ii) a plurality of crossbars extending from one segment of the frame structure across the central opening to another segment of the frame structure, and (iii) one or more resistance band retention structures, wherein the resistance band retention structures have a cross-section similar to that of the crossbars, (iv) wherein the peripheral frame and the plurality of crossbars are co-planar with one another, and (v) wherein a plurality of grip points are provided on the peripheral frame and on the plurality of crossbars; (b) a weight bar; and (c) a removable weight assembly. ### Claim 18 (depends on 17) The detachable strength training device of claim 17, further comprising a pair of resistance bands wrapped around the one or more resistance band retention structures. ### Claim 19 (depends on 17) The detachable strength training device of claim 17, wherein the peripheral frame is octagonal. ### Claim 20 A detachable strength training device, comprising: (a) a frame structure having eight peripheral frame segments that collectively form an octagonal peripheral frame that defines a central opening, wherein each of the eight peripheral frame segments defines a grip point adapted for use by a user in gripping the device and holding the device in front of them, and wherein the eight peripheral frame segments are of approximately equal length and are joined with one another at approximately equal angles; (b) a weight bar supported by the frame structure; and c) a removable weight assembly.