# US 9,517,374 B2 · Air straps > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,517,374 B2 - Document ID: US9517374B2 - Status: Granted - Kind: B2 - Application number: 14/250,110 - Filed: 2014-04-10 - Published: 2015-05-14 - Granted: 2016-12-13 - Earliest claimed: 2013-11-13 - Assignees: Velex Corp. - Applicants: Velex Corp. - Inventors: Kiril Stefan Alexandrov; Peter Hristov Velikin - Web page: https://patentgrep.com/patent/US9517374B2 ## CPC - A63B 7/02: Swinging rings; Trapezes - A63B 21/068: using user's body weight - A63B 21/16: Supports for anchoring force-resisters - A63B 21/1636: {for anchoring on the horizontal part of a door frame} - A63B 21/4015: {to the foot} - A63B 21/4035: {for operation by hand} - A63B 23/03541: {Moving independently from each other (A63B22/00 takes precedence)} - A63B 2208/02: posture - A63B 2208/0285: Hanging - A63B 2220/17: Counting, e.g. counting periodical movements, revolutions or cycles, or including further data processing to determine distances or speed - A63B 2220/51: Force - A63B 2220/803: Motion sensors - A63B 2220/806: Video cameras - A63B 2225/09: Adjustable dimensions - A63B 2225/685: for electronic devices, e.g. phone, PDA, GPS device, notebook - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract A fitness device for fully suspending a user in air includes at least four holds, at least four strap segments, and at least one attachment member. Each hold is configured to allow a user to interface with a hand or a foot. The four holds are configured to allow a single user to concurrently interface the four holds with a separate hand or foot. At least one strap segment is adjustable in length between the corresponding hold and a suspension point. The strap segments are configured to move independently of each other strap segment. The at least one attachment member is configured to attach to a corresponding mounting support structure to enable a user to fully suspend the user's body from a ground surface by contact with the holds. ## Claims ### Claim 1 A fitness device for fully suspending a user in air, the fitness device comprising: at least four holds, wherein each hold is configured to allow a user to interface with a hand or a foot, wherein the four holds are configured to allow a single user to concurrently interface the four holds with a separate hand or foot; at least four strap segments, wherein at least one strap segment is adjustable in length between a corresponding hold and a suspension point, wherein the strap segments are configured to move independently of each other strap segment; and at least one attachment member, wherein the at least one attachment member is configured to attach to a corresponding mounting support structure to enable a user to fully suspend the user's body from a ground surface by contact with the holds, wherein the mounting support structure is a pull-up bar station configured to mount within a door frame, wherein the pull-up bar station comprises a pin spanning between brackets, the brackets attached to the pull-up bar station, the brackets fixedly rigid relative to a cross-bar configured to span across the door frame, wherein the at least one attachment member is configured to attach at the pin, wherein a longitudinal axis of the pin is fixedly parallel to a longitudinal axis of the cross-bar. ### Claim 2 (depends on 1) The fitness device for fully suspending a user in air of claim 1, wherein the at least four holds and the at least four strap segments are further configured to facilitate the user to fully-suspend the user solely from the holds, in an absence of an additional supporting member for the user's torso. ### Claim 3 (depends on 1) The fitness device for fully suspending a user in air of claim 1, wherein the at least four strap segments are independent straps individually connected to at least one attachment member. ### Claim 4 (depends on 3) The fitness device for fully suspending a user in air of claim 3, the fitness device further comprising two attachment members, wherein a first strap segment and a second strap segment attach to a first attachment member, and wherein a third strap segment and a fourth strap segment attach to a second attachment member. ### Claim 5 (depends on 1) The fitness device for fully suspending a user in air of claim 1, wherein all strap segments are individually adjustable in length between a corresponding hold and a corresponding suspension point, and wherein two of the at least four strap segments extend from a first common strap, and wherein two of the at least four strap segments extend from a second common strap, wherein each of the strap segments is independently adjustable and wherein the first and second common strap are each independently adjustable. ### Claim 6 (depends on 1) The fitness device for fully suspending a user in air of claim 1, the fitness device further comprising at least two suspension points, wherein a first suspension point suspends a first and second strap segment, and wherein a second suspension point suspends a third and fourth strap segment. ### Claim 7 (depends on 1) The fitness device for fully suspending a user in air of claim 1, wherein the suspension point for each strap segment is one of the at least one attachment members. ### Claim 8 (depends on 1) The fitness device for fully suspending a user in air of claim 1, wherein at least one strap segment comprises an elastic material configured to stretch. ### Claim 9 (depends on 1) The fitness device for fully suspending a user in air of claim 1, wherein at least two strap segments are adjustable in length, wherein adjusting a length of the first of the at least two strap segments adjusts a length for the second of the at least two strap segments by an equal amount. ### Claim 10 A method for fully suspending a user in air by fitness straps, the method comprising: inserting a user's hands and feet into holds of a fitness device comprising: at least four holds, wherein each hold is configured to allow a user to interface with a hand or a foot, wherein the four holds are configured to allow a single user to concurrently interface the four holds with a separate hand or foot; at least four strap segments, wherein at least one strap segment is adjustable in length between a corresponding hold and a suspension point, wherein the strap segments are configured to move independently of each other strap segment; and at least one attachment member, wherein the at least one attachment member is configured to attach to a corresponding mounting support structure to enable a user to fully suspend the user's body from a ground surface by contact with the holds, wherein the mounting support structure is a pull-up bar station configured to mount within a door frame, wherein the pull-up bar station comprises a pin spanning between brackets, the brackets attached to the pull-up bar station, the brackets fixedly rigid relative to a cross-bar configured to span across the door frame, wherein the at least one attachment member is configured to attach at the pin, wherein a longitudinal axis of the pin is fixedly parallel to a longitudinal axis of the cross-bar; suspending the user in air by contacting the four holds. ### Claim 11 (depends on 10) The method for fully suspending a user in air by fitness straps of claim 10, the method further comprising the user contacting only the four holds to suspend the user in the air. ### Claim 12 (depends on 10) The method for fully suspending a user in air by fitness straps of claim 10, the method further comprising the user performing a running motion with the arms and legs of the user while suspended in the air. ### Claim 13 (depends on 10) The method for fully suspending a user in air by fitness straps of claim 10, the method further comprising the user performing exercises while suspended in air and pulling one strap segment to lengthen the length between the corresponding hold and suspension point, wherein the pulling of the one strap shortens the length of another strap segment between the another strap segment's corresponding hold and suspension point. ### Claim 14 (depends on 10) The method for fully suspending a user in air by fitness straps of claim 10, the fitness device further comprising two attachment members, wherein a first strap segment and a second strap segment attach to a first attachment member, and wherein a third strap segment and a fourth strap segment attach to a second attachment member. ### Claim 15 A fitness system for fully suspending a user in air to exercise, the fitness system comprising: a mounting support structure, wherein the mounting support structure is a pull-up bar station configured to mount within a door frame; and a strap structure connected to the mounting support structure, the strap structure comprising: at least four holds, wherein each hold is configured to allow a user to interface with a hand or a foot, wherein the four holds are configured to allow a single user to concurrently interface the four holds with a separate hand or foot; at least four strap segments, wherein at least one strap segment is adjustable in length between a corresponding hold and a suspension point, wherein the strap segments are configured to move independently of each other strap segment; and at least one attachment member, wherein the at least one attachment member is configured to attach to the mounting support structure to enable a user to fully suspend the user's body from a ground surface by contact with the holds, wherein the pull-up bar station comprises a pin spanning between brackets, the brackets attached to the pull-up bar station, the brackets fixedly rigid relative to a cross-bar configured to span across the door frame, wherein the at least one attachment member is configured to attach at the pin, wherein a longitudinal axis of the pin is fixedly parallel to a longitudinal axis of the cross-bar. ### Claim 16 (depends on 15) The fitness system for fully suspending a user in air to exercise of claim 15, wherein two of the at least four strap segments extend from a first common strap, and wherein two of the at least four strap segments extend from a second common strap, wherein each of the strap segments is independently adjustable and wherein the first and second common strap are each independently adjustable. ### Claim 17 (depends on 15) The fitness system for fully suspending a user in air to exercise of claim 15, wherein the at least one attachment member comprises a carabiner or ring to connect the strap segments to the mounting support structure. ### Claim 18 (depends on 15) The fitness system for fully suspending a user in air to exercise of claim 15, the strap structure further comprising two attachment members, wherein a first strap segment and a second strap segment attach to a first attachment member, and wherein a third strap segment and a fourth strap segment attach to a second attachment member.