# US 7,607,399 B2 · Magnetic fabric retaining device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 7,607,399 B2 - Document ID: US7607399B2 - Status: Granted - Kind: B2 - Application number: 12/072,775 - Filed: 2008-02-28 - Published: 2008-08-28 - Granted: 2009-10-27 - Earliest claimed: 2007-02-28 - Assignees: Midwest Products, Inc. - Inventors: Charles H. Mack; Jesse C. Mack - Web page: https://patentgrep.com/patent/US7607399B2 ## CPC - D05B 39/00: Workpiece carriers (for automatically controlling movement of work-carrier to obtain particular configuration of seam D05B21/00; in general A41H15/00) - D05C 9/04: Work holders, e.g. frames - D05B: SEWING (appliances for the tailoring trade A41H; sewing tables A47B29/00; sewing in bookbinding B42B2/00; sewing machines modified for knitting D04B39/08) - D05C: EMBROIDERING; TUFTING (making non-woven fabrics D04H; sewing D05B) ## Abstract A device for use with an embroidery machine to hold an item or material to be embroidered between upper and lower hooping members, with the hooping members being secured to one another by use of a magnetic force, preferably with rare earth magnets, is disclosed. The magnets provide a solid, secure mating arrangement between the upper and lower hooping members as well as providing proper alignment of the hoping members. A ridge may be formed in at least one hooping member to securely retain the item or material to be embroidered. One hooping member has interchangeable arms for attaching the mating hooping members to different brands of embroidery machines. ## Claims ### Claim 1 A fabric retaining device for holding an article to be embroidered in an embroidery machine, said device comprising: a first hooping member defining a first opening; a second hooping member defining a second opening; wherein one of said first and said second hooping members comprises a plurality of individual spaced apart magnets; wherein the other of said first and said second hooping members comprises a material to attract the magnets of the other of said hooping members, whereby said article to be embroidered is retained by the magnetic attraction between said first and said second hooping members; at least one ridge formed on the upper member of said first and said second hooping members and whereby said at least one ridge positions said article to be embroidered relative to a needle plate on said embroidery machine; and wherein at least one of said first and said second hooping members comprises at least one mounting arm for attaching said device to the embroidery machine. ### Claim 2 (depends on 1) The device according to claim 1, wherein each of said first and said second hooping members comprises at least two individual spaced apart magnets. ### Claim 3 (depends on 1) The device according to claim 1, wherein the other of said first and said second hooping members comprises a metal material to attract the magnets of the other of said hooping members, whereby said article to be embroidered is retained by the attraction of said plurality of individually spaced apart magnets and said metal material. ### Claim 4 (depends on 1) The device according to claim 1, wherein each of said first and said second hooping members comprise at least two spaced apart magnets and whereby said magnets comprise means for properly aligning said first and said second hooping members. ### Claim 5 (depends on 1) The device according to claim 1, wherein one of said first and said second hooping members comprises a locating feature for aligning said first or said second hooping member with a hooping device. ### Claim 6 (depends on 1) The device according to claim 1, wherein said mounting arms for attaching said device to the embroidery machine are changeable whereby said device may be mounted on a variety of makes of embroidery machines. ### Claim 7 (depends on 1) The device according to claim 1, wherein said magnets comprise rare earth magnets. ### Claim 8 (depends on 1) The device according to claim 1, wherein said ridge substantially positions said article to be embroidered through the opening in the lower of said first and said second hooping members. ### Claim 9 A fabric retaining device for holding an article to be embroidered in an automated embroidery machine, said device comprising: a first hooping member defining a first opening and having a plurality of holes formed therein; a support structure comprising a plurality of individual spaced apart magnets, said magnets being arranged to pass into at least one of said holes; a second hooping member defining a second opening and comprising a material to attract said magnets; whereby said article to be embroidered is retained by the magnetic attraction between said first and said second hooping members; and wherein said first hooping member comprises at least one mounting arm for attaching said device to the embroidery machine. ### Claim 10 (depends on 9) The device according to claim 9, wherein said second hooping member comprises at least two individual spaced apart magnets. ### Claim 11 (depends on 9) The device according to claim 9 wherein said second hooping member comprises a metal material to attract the magnets of said support structure, whereby said article to be embroidered is retained by the attraction of said plurality of individually spaced apart magnets and said metal material. ### Claim 12 (depends on 9) The device according to claim 9 further comprising at least one ridge formed on said first and upper hooping member and whereby said at least one ridge positions said material to be embroidered relative to a needle plate on said embroidery machine. ### Claim 13 (depends on 12) The device according to claim 12, wherein said ridge substantially positions said article to be embroidered through the opening in said second hooping member. ### Claim 14 A fabric retaining device for holding an article to be embroidered in an embroidery machine, said device comprising: a first hooping member defining a first opening and having a plurality of holes formed therein; a support structure comprising a plurality of individual spaced apart magnets, said magnets being arranged to pass into at least one of said holes; a second hooping member defining a second opening and comprising a material to attract said magnets; whereby said article to be embroidered is retained by the magnetic attraction between said first and said second hooping members; wherein said first hooping member comprises means for attaching said device to the embroidery machine; and means for selectively positioning said support structure relative to said first hooping member, thereby preventing said support structure from being attracted to said second hooping member until an external force is applied to said support structure. ### Claim 15 (depends on 14) The device according to claim 14, wherein said means for selectively positioning said support structure relative to said first hooping member comprises at least one spring attached between said support structure and said first hooping member. ### Claim 16 (depends on 14) The device according to claim 14, wherein said second hooping member comprises at least two spaced apart magnets, and whereby said magnets comprise means for properly aligning said first and said second hooping members. ### Claim 17 (depends on 14) The device according to claim 14, wherein said means for attaching said device to the embroidery machine are changeable to allow said device to be mounted on a variety of makes of embroidery machines. ### Claim 18 (depends on 14) The device according to claim 14, wherein said magnets comprise rare earth magnets.