# US 8,739,803 B2 ยท Hair extension device > Agents: this data is available as JSON from the patentgrep API and MCP server โ€” see https://patentgrep.com/llms.txt - Number: US 8,739,803 B2 - Document ID: US8739803B2 - Status: Granted - Kind: B2 - Application number: 12/965,577 - Filed: 2010-12-10 - Published: 2011-07-14 - Granted: 2014-06-03 - Earliest claimed: 2005-01-31 - Assignees: Michelle Elizabeth FreeLove - Applicants: Michelle Elizabeth Freelove - Inventors: Michelle Elizabeth Freelove - Web page: https://patentgrep.com/patent/US8739803B2 ## CPC - A41G 5/0046: {forming hair extensions from bundles of hair} - A41G 5/0053: {Fastening thereof} - A41G: ARTIFICIAL FLOWERS; WIGS; MASKS; FEATHERS ## Abstract In one configuration of the present invention, a hair extension device for providing a user with the appearance of having longer, fuller hair is disclosed. The device may have a hair cluster having a hair flap which in turn comprises one or more hair wefts. The hair wefts may contain a number of hair strands connected together by seams which composes the band. The device may contain a filament which may be sandwiched between one or more flaps. The hair wefts may be sewn together with thread using a zigzag stitch for example. The hair extension device may be reversible and it may comprise lace and a tension band. ## Claims ### Claim 1 A hair extension device for providing a user with the appearance of having longer, fuller hair, said device comprising: a hair cluster having a hair flap comprising a first, second and a third hair weft, said hair wefts comprising hair strands attached together by seams; and a filament for supporting the hair cluster on the user's head: said filament connected to a tension band allowing a loop formed by the tension band and filament to stretch upon application of a pulling force, and shrink upon removal of the pulling force; wherein said tension band is surrounded by the hair cluster so that the tension band is not visible to the user and the tension band does not come into contact with the user's hair when it's worn. ### Claim 2 (depends on 1) The hair extension device of claim 1 wherein the tension band is attached to the filament by melting a fastener. ### Claim 3 (depends on 1) The hair extension device of claim 1 wherein the device comprises only one tension band. ### Claim 4 (depends on 3) The hair extension device of claim 3 wherein the tension bands are attached to the hair cluster by stitching which fastens an inner side of the band to the hair cluster. ### Claim 5 (depends on 3) The hair extension device of claim 3 wherein the filament is the only securing measure for maintaining the device on the head of the user. ### Claim 6 (depends on 1) The hair extension device of claim 1 wherein the tension band provides the filament with an apparent ability to stretch even though the filament is constructed of an inelastic material. ### Claim 7 (depends on 1) The hair extension device of claim 1 the tension band and filament compose a continuous length forming an arcuate or circular shape, and both ends of the filament are connected to the tension band. ### Claim 8 (depends on 1) The hair extension device of claim 1 wherein the hair flap surrounds a filament for supporting the hair cluster on the user's head, said filament having: a circular cross-section; a first and second end; an elliptical or circular shape forming a total circumference by connecting the first and second end; and a point of attachment of the first and second end. ### Claim 9 (depends on 1) The hair extension device of claim 1 wherein the hair cluster extends along a portion of the filament; said portion comprising โ…“ to โ…” of the total circumference of the filament. ### Claim 10 (depends on 1) The hair extension device of claim 1 comprising a length of lace having a length approximately equal to twice the length of the hair flap, wherein the hair wefts are not fastened to each other, but are fastened to the length of the lace. ### Claim 11 (depends on 1) The hair extension device of claim 1 comprising a length of lace having a length approximately equal to twice the length of the hair flap, wherein the hair wefts are not fastened to each other, but are fastened to the length of the lace. ### Claim 12 (depends on 1) The hair extension device of claim 1, wherein the filament has two points of attachment to the hair cluster. ### Claim 13 (depends on 12) The hair extension device of claim 12, wherein the filament has two ends, and both ends are connected to the hair cluster. ### Claim 14 (depends on 1) The hair extension device of claim 1, wherein the user's head has a crown and a bottom portion, and the filament is configured so that a first portion of the filament is in contact with the crown, and a second portion of the filament is connected to the hair cluster, and the second portion is in contact with the bottom portion of the user head when the device is being worn. ### Claim 15 A hair extension device for providing a user with the appearance of having longer, fuller hair, said device comprising: a hair cluster having a hair flap comprising a first, second and a third hair weft, said hair wefts comprising hair strands attached together by seams; and a filament and a tension band combination having a dynamic length which can increase or decrease in length upon the application or removal of a pulling force; said dynamic length being adjustable by the user so that the hair extension device contains loop of a correct length to securely fit on the user's head; wherein said tension band is surrounded by the hair cluster so that the tension band is not visible to the user and the tension band does not come into contact with the user's hair when it's worn. ### Claim 16 (depends on 15) The hair extension device of claim 15 wherein the tension band is attached to the filament by melting a fastener. ### Claim 17 (depends on 15) The hair extension device of claim 15 wherein the device comprises only one tension band. ### Claim 18 (depends on 15) The hair extension device of claim 15 wherein the tension band is sewn into the inside of the hair cluster so that it is not visible to the user. ### Claim 19 (depends on 15) The hair extension device of claim 15 wherein the filament is the only securing measure for maintaining the device on the head of the user. ### Claim 20 (depends on 15) The hair extension device of claim 15 wherein the hair flap surrounds a filament for supporting the hair cluster on the user's head, said filament having: a circular cross-section; a first and second end; an elliptical or circular shape forming a total circumference by connecting the first and second end; and a point of attachment of the first and second end. ### Claim 21 (depends on 15) The hair extension device of claim 15 wherein the tension band and filament compose a continuous length forming an arcuate or circular shape, and both ends of the filament are connected to the tension band. ### Claim 22 (depends on 15) The hair extension device of claim 15, wherein the filament has two points of attachment to the hair cluster. ### Claim 23 (depends on 22) The hair extension device of claim 22, wherein the filament has two ends, and both ends are connected to the hair cluster. ### Claim 24 (depends on 15) The hair extension device of claim 15, wherein the user's head has a crown and a bottom portion, and the filament is configured so that a first portion of the filament is in contact with the crown, and a second portion of the filament is connected to the hair cluster, and the second portion is in contact with the bottom portion of the user's head when the device is being worn.