# US 9,873,013 B2 · Exercise system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,873,013 B2 - Document ID: US9873013B2 - Status: Granted - Kind: B2 - Application number: 14/800,104 - Filed: 2015-07-15 - Published: 2016-03-24 - Granted: 2018-01-23 - Earliest claimed: 2014-09-18 - Applicants: Otis Williams - Inventors: Otis Williams - Web page: https://patentgrep.com/patent/US9873013B2 ## CPC - A63B 21/4034: {for operation by feet} - A63B 21/00061: {Replaceable resistance units of different strengths, e.g. for swapping} - A63B 21/00185: {using resistance provided by the user, e.g. exercising one body part against a resistance provided by another body part (A63B21/068 takes precedence; isometric exercise A63B21/0023)} - A63B 21/0023: {for isometric exercising, i.e. substantial force variation without substantial muscle motion} - A63B 21/0442: {Anchored at one end only, the other end being manipulated by the user} - A63B 21/0552: {Elastic ropes or bands} - A63B 21/0557: {Details of attachments, e.g. clips or clamps} - A63B 21/4035: {for operation by hand} - A63B 23/03541: {Moving independently from each other (A63B22/00 takes precedence)} - 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 23/03575: {Apparatus used for exercising upper and lower limbs simultaneously} - A63B 23/1209: {Involving a bending of elbow and shoulder joints simultaneously} - A63B 23/1245: {Primarily by articulating the shoulder joint (A63B23/129 takes precedence)} - A63B 2071/027: {using player's own weight, e.g. on a platform} - A63B 2208/0238: with stretched legs, like on a bed - A63B 2209/02: with reinforcing fibres, e.g. carbon, polyamide fibres - A63B 2225/093: Height - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract An exercise system and method for performing various exercises, including a seated abdominal exercise. The exercise system includes an elongated, rigid bar having a first end and a second end, wherein a first and second ring fastener are disposed on each end and a third ring fastener is disposed therebetween. Various exercise attachments are removably securable to each ring fastener, such as elongated straps, a pull bar, resistance bands, and the like. The exercise system allows a user to manipulate the exercise attachment in a particular direction while applying opposing force to the elongated bar using his or her feet pressed thereagainst in order to build muscle, stretch, perform isometric exercises, physical therapy, and the like. ## Claims ### Claim 1 An exercise system, comprising: an elongated bar having a first end, a second end, a front end, a rear end, and a front surface, wherein the first and second ends are shorter in length than the front and rear ends; a first ring fastener disposed on said first end of said elongated bar and a second ring fastener disposed on said second end of said elongated bar; a third ring fastener disposed between said first end and said second end of said elongated bar; wherein the exercise system is void of any additional ring fasteners; wherein the first, second, and third ring fasteners are arranged entirely linearly across the elongated bar; wherein each of the first, second, and third ring fasteners comprise a pair of ends disposed flush against the front surface of the elongated bar and a channel extending therebetween and along a longitudinal axis of the elongated bar; a first, second, and third movable ring positioned through the channel of the first, second, and third ring fasteners, respectively, wherein each of the first, second, and third movable rings are configured to only rotate 180 degrees around a same longitudinal axis of the elongated bar, the same longitudinal axis defined along the center between the front end and rear end of the elongated bar; wherein each of the first, second, and third movable ring is perpendicular to the first end and second end of the elongated bar when positioned orthogonal to the front surface of the elongated bar; one or more exercise attachments removably secured to the movable rings disposed on said front surface of said elongated bar, wherein said one or more exercise attachments each comprises a first end and a second end. ### Claim 2 (depends on 1) The exercise system of claim 1, wherein said one or more exercise attachments comprise a pair of elongated straps each having a first end and a second end, wherein said first end of each elongated strap is removably securable to said movable rings disposed on said elongated bar by a fastener disposed on each of said first end of said pair of elongated straps. ### Claim 3 (depends on 2) The exercise system of claim 2, further comprising one or more handles disposed on said second end of said pair of elongated straps. ### Claim 4 (depends on 1) The exercise system of claim 1, wherein said one or more exercise attachments comprise a pull bar having a first end, wherein said first end of said pull bar includes a fastener thereon adapted to be removably secured to said third movable ring. ### Claim 5 (depends on 1) The exercise system of claim 1, wherein said one or more exercise attachments comprise one or more resistance bands each having a first end and a second end, wherein said first end of each resistance band includes a fastener thereon adapted to be removably secured to said movable rings on said elongated bar, and said second end of each resistance band includes a fastener thereon adapted to be removably secured to a handle. ### Claim 6 (depends on 1) The exercise system of claim 1, wherein said second end of said one or more exercise attachments comprise a fastener that is removably securable to a handle. ### Claim 7 (depends on 4) The exercise system of claim 4, wherein the is a rigid clip that directly secures the pull bar to the third movable ring fastener.