# US 7,608,016 B2 · Portable isometric exercise device with resistance generated by a spring force, including an electronic light or sound indicator to signal that a constant force level is being maintained > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,608,016 B2 - Document ID: US7608016B2 - Status: Granted - Kind: B2 - Application number: 11/786,938 - Filed: 2007-04-13 - Published: 2008-10-16 - Granted: 2009-10-27 - Earliest claimed: 2007-04-13 - Assignees: Armin Armani - Applicants: Mariam Beyzavi, legal representative - Inventors: M. Amin Beyzavi-Armani - Web page: https://patentgrep.com/patent/US7608016B2 ## CPC - A63B 21/0023: {for isometric exercising, i.e. substantial force variation without substantial muscle motion} - A63B 21/4015: {to the foot} - A63B 21/4035: {for operation by hand} - A63B 21/4043: {Free movement, i.e. the only restriction coming from the resistance (A63B21/00043, A63B21/072 take precedence)} - A63B 23/03541: {Moving independently from each other (A63B22/00 takes precedence)} - 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 23/1209: {Involving a bending of elbow and shoulder joints simultaneously} - A63B 2071/0627: {when used improperly, e.g. by giving a warning} - Y10S 482/90: Ergometer with feedback to load or with feedback comparison - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) - Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS ## Abstract The present invention is a portable isometric exercise device with resistance generated by a spring force including an electronic light or sound indicator to signal that a constant force level is being maintained. When a force is applied to the spring and a desired level of resistance is achieved, a continuous signal will be generated to advise the user that the isometric force exercise is being maintained. If the force is reduced, the signal will terminate to advise the user that the user has not maintained the required level of resistance. ## Claims ### Claim 1 A portable isometric exercise device, comprising: a. a body that defines a first interior chamber in one area and a second interior chamber in an adjacent area; b. a coil resistance spring having a top end and bottom end housed in the first chamber and retaining a “U” shaped spring force selection member having an arcuate lower section which extends below the bottom end of the coil spring and a first longitudinal bar adjacent the top of the coil spring and terminating in a first transverse retaining member and a second longitudinal bar terminating in a transverse force selection member adjacent the top of the coil spring and extending in a direction opposite to the first transverse member; c. an isometric spring force selector retained within the second chamber of the body having an interior slot extending through a longitudinal opening in a wall facing the coil spring, a multiplicity of paired force selection resistance level openings positioned in an aligned column on the spring force selector, the body having aligned matching openings; d. the force selection member positioned within the slot of the isometric spring force selector so that the bottom of the “U” shaped spring force selection member can be pulled to cause the transverse force selection member to be aligned with a given pair of openings; e. an electronic signal indicator having two metal prongs which extend from a body of the indicator which contains an electronic signal means therein, so that when the two metal prongs are inserted into a respective one of the pair of openings, the prongs come in contact with the transverse force selection member to close an electric circuit and cause a signal to be continuously emitted and when the two metal prongs lose contact with the transverse force selection member the signal is terminated; and f. a first gripping means connected to the arcuate lower section of the “U” shaped spring force selection member and a second gripping means affixed to the body at a location remote from the first gripping means, wherein when the first and second gripping means are pulled apart the transverse force selection member comes in contact with the selected location where the two metal prongs are located and a continuous signal is emitted to advise that the given level of isometric resistance force is achieved and maintained and if the force is reduced, the transverse force selection member move away from the prongs and the signal is terminated. ### Claim 2 (depends on 1) The isometric exercise apparatus in accordance with claim 1 wherein the body further comprises an internal area to house the electronic signal indicator when it is not in use. ### Claim 3 (depends on 1) The isometric exercise apparatus in accordance with claim 1 wherein said first gripping means is a strap affixed around the arcuate end of the “U” shaped spring force selection member. ### Claim 4 (depends on 1) The isometric exercise apparatus in accordance with claim 1 wherein said second gripping means further comprises a pulley with a cable slidable on said pulley and a pair of strap members affixed at opposite ends of the cable. ### Claim 5 (depends on 1) The isometric exercise apparatus in accordance with claim 1 wherein said continuous emitted signal is a visual signal. ### Claim 6 (depends on 1) The isometric exercise apparatus in accordance with claim 1 wherein said continuous emitted signal is an audible signal. ### Claim 7 A portable isometric exercise device, comprising: a body; a coil resistance spring housed in the body and retaining a spring force selection member having a transverse force selection member adjacent the top of the coil spring and extending in a direction transverse to the length of the coil spring; an isometric spring force selector portion disposed adjacent the coil spring, wherein the isometric spring force selector portion includes a multiplicity of pairs of force selection resistance level openings positioned in an aligned column; wherein the spring force selection member can be moved to cause the transverse force selection member to be aligned with a selected pair of openings; an electronic signal indicator having a pair of metal prongs which extend from a body of the indicator which contains an electronic signal means therein, so that when the pair of metal prongs are inserted into a selected pair of openings, the prongs come in contact with the transverse force selection member to close an electric circuit and cause a signal to be continuously emitted; and a first gripping means connected to the spring force selection member and a second gripping means affixed to the body at a location remote from the first gripping means, wherein when one or both of the first and second gripping means are pulled the transverse force selection member comes in contact with the metal prongs and a continuous signal is emitted to advise that the desired level of isometric resistance force is achieved and if the force is reduced, the transverse force selection member moves away from the prongs and the signal is terminated. ### Claim 8 (depends on 7) The isometric exercise apparatus in accordance with claim 7 wherein the body further comprises an internal area to house the electronic signal indicator when it is not in use.