# US 9,752,891 B2 · Wearable fitness device and fitness device interchangeable with plural wearable articles > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,752,891 B2 - Document ID: US9752891B2 - Status: Granted - Kind: B2 - Application number: 14/452,918 - Filed: 2014-08-06 - Published: 2014-11-27 - Granted: 2017-09-05 - Earliest claimed: 2005-08-01 - Applicants: Carolyn M. Merkel; Barbara J. Merkel - Inventors: Carolyn M. Merkel; Barbara J. Merkel - Web page: https://patentgrep.com/patent/US9752891B2 ## CPC - G01C 22/006: {Pedometers} - A43B 3/00: Footwear characterised by the shape or the use - A43B 3/34: with electrical or electronic arrangements - A61B 5/11: Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb {(A61B5/1038 takes precedence; motion detection to correct for motion artifacts in physiological signals A61B5/721)} - A61B 5/6804: {Garments; Clothes} - A61B 5/6828: {Leg} - A61B 5/6831: {Straps, bands or harnesses} - A61B 5/222: {combined with detection or measurement of physiological parameters, e.g. heart rate} - A61B 2562/0219: Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches - A63B 2220/17: Counting, e.g. counting periodical movements, revolutions or cycles, or including further data processing to determine distances or speed - A63B 2220/836: Sensors arranged on the body of the user - G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S) - A43B: CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A63B: APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT (apparatus for passive exercising, massage A61H) ## Abstract The present invention relates to a fitness device comprising a display having plurality of lights that are configured for illumination as fitness intervals are achieved by a user. The fitness device is interchangeable with plural wearable articles. This functional fitness device allows a user to track their steps while at work, shopping, an evening out, or anytime one is on the move, even when it is interchanged between different wearable articles. ## Claims ### Claim 1 A fitness accessory kit comprising: a first wearable article; and a fitness device for measuring cumulative distance traversed or number of steps by a person selected from the group consisting of mechanical pedometers, electro-mechanical pedometers, electronic pedometers, and accelerometers, the fitness device comprising a display having plurality of lights that are configured for illumination as fitness intervals are achieved by a user, constructed and arranged to be removably attached to the first wearable article; includes swivel connectors at two opposing lateral sides of the fitness device; wherein each of the swivel connectors include a distal cross member having an internal stem extending therefrom with a shoulder, wherein a portion of a housing of the pedometer is rotatably seated on the internal stem, and an external stem extending from the shoulder with an aperture therethrough for receiving a ring, and wherein the wearable article includes end connectors that removably attach to the ring attached to each of the swivel connectors. ### Claim 2 (depends on 1) The fitness accessory kit as in claim 1, wherein the first wearable article is an anklet. ### Claim 3 (depends on 2) The fitness accessory kit as in claim 2, wherein the fitness device includes the display at a top portion thereof when the first wearable article is worn by a user. ### Claim 4 (depends on 1) The fitness accessory kit as in claim 1, wherein a plurality of rings are attached to each of the swivel connectors. ### Claim 5 (depends on 2) The fitness accessory kit as in claim 2, wherein the anklet is formed of chain links, beads, or rope chain. ### Claim 6 (depends on 2) The fitness accessory kit as in claim 2, wherein the anklet is formed of spandex fiber, knitted elastics, net elastics, rubber-based articles or stretchable cloth. ### Claim 7 (depends on 2) The fitness accessory kit as in claim 2, wherein the anklet includes an elastic or spring core. ### Claim 8 (depends on 1) The fitness accessory kit as in claim 1, comprising plural wearable articles including at least the first wearable article and a second wearable article, wherein the fitness device is constructed and arranged to be interchangeably connected between the first wearable article and the second wearable article. ### Claim 9 (depends on 8) The fitness accessory kit as in claim 8, wherein the plural wearable articles comprise plural types of wearable articles. ### Claim 10 (depends on 8) The fitness accessory kit as in claim 8, wherein the plural wearable articles comprise plural styles or colors of one type of wearable articles. ### Claim 11 (depends on 1) The fitness accessory kit as in claim 1, wherein the fitness device is a mechanical pedometer or an electro-mechanical pedometer. ### Claim 12 (depends on 1) The fitness accessory kit as in claim 1, wherein the fitness device is an electronic pedometer or an accelerometer. ### Claim 13 (depends on 1) The fitness accessory kit as in claim 1, comprising at least two connection structures on one or both sides of the fitness device, wherein the swivel connectors at the two opposing lateral sides of the fitness device form at least one of said connection structures the two opposing lateral sides of the fitness device, and the first wearable article comprises at least two end connectors on each end that removably attach to the at least two connection structures.