# US 7,608,020 B2 · Arm and shoulder lift apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,608,020 B2 - Document ID: US7608020B2 - Status: Granted - Kind: B2 - Application number: 12/020,621 - Filed: 2008-01-28 - Published: 2009-07-30 - Granted: 2009-10-27 - Earliest claimed: 2008-01-28 - Inventors: Christopher M. Mason - Web page: https://patentgrep.com/patent/US7608020B2 ## CPC - A63B 21/0615: {pivoting about a fixed horizontal fulcrum} - A63B 21/08: anchored at one end - A63B 21/159: {Using levers for transmitting forces} - A63B 21/4005: {to the shoulder} - A63B 21/4035: {for operation by hand} - A63B 21/4047: {Pivoting movement (weight pivoting A63B21/0615)} - A63B 23/03525: {Supports for both feet or both hands performing simultaneously the same movement, e.g. single pedal or single handle (A63B21/0724 takes precedence)} - A63B 23/0405: {involving a bending of the knee and hip joints simultaneously (A63B23/0476 takes precedence)} - A63B 2023/0411: {Squatting exercises} - A63B 2208/0204: Standing on the feet - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract An exercise apparatus has a frame supporting a pivotable lower right arm and a lower left arm, and also a pivotable upper right arm and upper left arm. The upper right arm and the upper left arm are pivotably connected to the frame at points above the pivotable connections of the lower right arm and the lower left arm. The lower arms have handles for grasping by a user and weight pegs. The upper right arm and the upper left arm each further have a rail connected to the arm and running substantially parallel to it. A sleeve slideably engages the rail and supports a shoulder harness for a user and also weight pegs. The user grasps the handles connected to the lower arms and lifts upward, whereby his shoulders contact the resistance of the upper arms through the shoulder harness. ## Claims ### Claim 1 An exercise apparatus comprising: a frame; a lower right arm and a lower left arm; the lower right arm and the lower left arm pivotably connected to the frame; the lower right arm and the lower left arm each having a handle for grasping by a user; an upper right arm and an upper left arm; the upper right arm and the upper left arm pivotably connected to the frame; the upper right arm and the upper left arm pivotably connected to the frame at points above the pivotable connections of the lower right arm and the lower left arm; the upper right arm and the upper left arm each further comprising: a rail connected to the arm; the rail substantially parallel to the arm; a sleeve slideably engaging the rail; the sleeve connected to a harness support rod; a shoulder harness for engaging the shoulders of a user; the shoulder harness connected to the left and right harness support rods. ### Claim 2 (depends on 1) The exercise apparatus of claim 1, further comprising: a peg for supporting weights connected to each sleeve. ### Claim 3 (depends on 2) The exercise apparatus of claim 2, where the pegs for supporting weights are offset from the axis of the harness support rods. ### Claim 4 (depends on 1) The exercise apparatus of claim 1, further comprising: a peg for supporting weights connected to each lower arm. ### Claim 5 (depends on 1) The exercise apparatus of claim 1, further comprising: a lower crossbeam; the lower crossbeam connected between the lower right arm and the lower left arm, so that the lower right arm and the lower left arm are forced to pivot together. ### Claim 6 (depends on 1) The exercise apparatus of claim 1, further comprising: an upper crossbeam, the upper crossbeam connected between the upper right arm and the upper left arm, so that the upper right arm and the upper left arm are forced to pivot together. ### Claim 7 (depends on 1) The exercise apparatus of claim 1, where the left and right harness support rods are rotatable with respect to the respective sleeves. ### Claim 8 (depends on 1) The exercise apparatus of claim 1, further comprising: right and left counterbalance arms connected respectively to the upper right arm and the upper left arm. ### Claim 9 (depends on 8) The exercise apparatus of claim 8, where the left and right counterbalance arms further comprise pegs for supporting weights. ### Claim 10 (depends on 1) The exercise apparatus of claim 1, where each upper arm further comprises: limit bars; the limit bars adjustable to limit the travel of the sleeve along the rail. ### Claim 11 (depends on 1) The exercise apparatus of claim 1, further comprising: the frame having right and left adjusting beams; the left and right adjusting beams disposed on the side of the frame opposite the pivotable connections of the upper arms and the lower arms to the frame; the left and right adjusting beams having holes for receiving pins for supporting the upper arms or the lower arms or both in an initial position. ### Claim 12 An exercise apparatus comprising: a frame; a lower right arm and a lower left arm; the lower right arm and the lower left arm pivotably connected to the frame; the lower right arm and the lower left arm each having a peg for supporting weights; the lower right arm and the lower left arm each having a handle for grasping by a user; an upper right arm and an upper left arm; the upper right arm and the upper left arm pivotably connected to the frame; the upper right arm and the upper left arm pivotably connected to the frame above the pivotable connections of the lower right arm and the lower left arm; the upper right arm and the upper left arm each further comprising: a rail connected to the arm; the rail substantially parallel to the arm; a sleeve slideably engaging the rail; the sleeve connected to a harness support rod; where the harness support rod is rotatable with respect to the sleeve; the sleeve connected to a peg for supporting weights; and, limit bars; the limit bars adjustable to limit the travel of the sleeve along the rail; a shoulder harness for engaging the shoulders of a user; the shoulder harness connected to the left and right harness support rods. ### Claim 13 (depends on 12) The exercise apparatus of claim 12, where the pegs for supporting weights connected to the sleeves are offset from the axis of the harness support rods. ### Claim 14 (depends on 12) The exercise apparatus of claim 12, further comprising: a lower crossbeam; the lower crossbeam connected between the lower right arm and the lower left arm, so that the lower right arm and the lower left arm are forced to pivot together. ### Claim 15 (depends on 14) The exercise apparatus of claim 14, where the extension of the lower crossbeam is adjustable. ### Claim 16 (depends on 12) The exercise apparatus of claim 12, further comprising: an upper crossbeam, the upper crossbeam connected between the upper right arm and the upper left arm, so that the upper right arm and the upper left arm are forced to pivot together. ### Claim 17 (depends on 12) The exercise apparatus of claim 12, further comprising: right and left counterbalance arms connected respectively to the upper right arm and the upper left arm; the right and left counterbalance arms further comprising pegs for supporting weights. ### Claim 18 (depends on 12) The exercise apparatus of claim 12, further comprising: the frame having right and left adjusting beams; the left and right adjusting beams disposed on the side of the frame opposite the pivotable connections of the upper arms and the lower arms to the frame; the left and right adjusting beams having spaced holes for receiving pins for supporting the upper arms or the lower arms, or both, in an initial position.