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| Number | Title | Issue Date |
| 7021226 | Sewing machine having a lower thread cutter A sewing machine includes a needle plate with a cutout part, and a guide plate connected to a bottom side of the needle plate and extending substantially across the cutout part. The guide plate includes a pair of slide rails, an opening substantially corresponding i... | 04/04/2006 |
| 6637357 | Overlock sewing machine A two-needle overlock sewing machine comprises a throat plate and a middle tongue. The throat plate has an opening needle hole and an outer tongue. The middle tongue is disposed parallel to the outer tongue, a thread chain is formed so as to envelop both ... | 10/28/2003 |
| 6286445 | Unitary double-acting piston thread cutter assembly A unitary double-acting piston thread cutter assembly having a housing including an integrated cutter section and drive section forming a single unitary device. The thread cutter assembly includes a universal tension mount for releasably securing the thre... | 09/11/2001 |
| 6123041 | Automated sewing system and method for sewing a knit glove cuff edge An automated sewing system and method for overedge sewing a cuff edge of a knit glove to inhibit the glove cuff edge from unraveling is disclosed. The present invention permits an oversew pattern to be sewn into the seam thereby locking the stitches. The ... | 09/26/2000 |
| 6009819 | Auxiliary device for sewing up the starting end of a thread chain in a chain stitch sewing machine An auxiliary device (6) for sewing up the starting end of a thread chain (F) in a chain stitch sewing machine (1) having a platform (2), a needle plate (3) and an edge cutter (4) comprises a suction and separating device (5) disposed subsequent to the nee... | 01/04/2000 |
| 5884573 | Apparatus for sewing a thread chain into a seam by an overlock sewing machine The present invention relates to an apparatus for sewing a thread chain into a seam by an overlock sewing machine, particularly an apparatus for providing a specified length of thread chain remaining in a side of the sewing machine. A cutting device cuts ... | 03/23/1999 |
| 5803002 | Method and apparatus for latchtacking An apparatus and method is provided for a less costly and more reliable latchtacking technique that produces a finished work piece that is esthetically superior to the work piece that is produced by the current technique. A chain cutter has miniaturized c... | 09/08/1998 |
| 5613454 | Vacuum latchtack throat plate with a vacuum generating apparatus The current invention involves a vacuum latchtack throat plate with a vacuum generating system. The throat plate includes a body having a first internal bore beginning at a front edge of the body and extending longitudinally therethrough, and a channel fo... | 03/25/1997 |
| 5609117 | Thread cutter for sewing machine Obtained is a thread cutter for a sewing machine which can further readily and reliably cut a needle thread, a looper thread or a chain loop by pushing down a knob without driving the sewing machine. In this thread cutter for a sewing machine, a long groo... | 03/11/1997 |
| 5582121 | Apparatus for sewing a thread chain in a chain stitch sewing machine An apparatus for a chain stitch sewing machine, for automatically shifting a thread chain from the stitching area to its opposite side and holding it there, and for stitching the thread chain neatly onto the initial seam on a fabric supplied successively ... | 12/10/1996 |
| 5513588 | Overlock sewing machine and thread chain back-tacker therefor A thread chain back-tacker for an overlock sewing machine eliminates defective back-tacking. The back-tacker includes a thread chain cutter, an adjuster for adjusting the length of free thread chain after the end of back-tacking, a presser foot, an air no... | 05/07/1996 |
| 5505147 | Latch taking knife and thread clamp A mechanical latch tacking device carried by the toe of the sewing machine presser foot that will allow the operator to produce a relatively short stitch chain at the end of a seam and in a single smooth ergonomical motion cause the chain to be severed an... | 04/09/1996 |
| 5311831 | Device for reversal of an end-of-stitching chain in a two-needle overedging trimming machine In a trimming sewing machine a chain (16) is formed on a workpiece (5) at the end of a stitching, which chain must be then cut and reversed over the needle plate (2) before starting of new stitching. The chain (16) is formed on a primary tab (12) provided... | 05/17/1994 |
| 5269238 | Quilting machine loopers with linkage/piston driven thread cutters An electronically controlled multi-needle quilting machine including linking cylinder arranged between an eccentric integral with a rotating spindle and a lever, to drive in an oscillating motion a number of loopers which, in combination with a number of ... | 12/14/1993 |
| 5203270 | Sewing machine with latch back device An apparatus and method for creating a "serging", "overlock" or "504" stitch wherein the excess thread chain (44) extending from the sewing machine needle to the previously sewn garment part (54) is cut in a manner to create a leading thread chain of a pr... | 04/20/1993 |
| 5176084 | Knife assembly for automatic sewing machines A thread cutting knife assembly for an automatic sewing machine cuts leading and trailing threads during the stitching of garments so that very little tail is left. The body member of the assembly has an open top cavity and first and second ends spaced fr... | 01/05/1993 |
| 5159889 | Sewing machine with automatic latch back device and method of sewing a portion of a thread chain An apparatus and method for creating an overlock or 504 stitch wherein the excess thread chain (65) extending from the sewing machine needles (19) and the hollow chaining (32) to the previously sewn garment part (60) is stretched and is cut by thread chai... | 11/03/1992 |
| 5134948 | Overlocking sewing machine and method for performing overlock sewing in overlocking sewing machine An overlock sewing machine having a loop spreading member which provides a retracted position and an operative position. In the retracted position, the loop spreading member is moved away from one side of needle hole slots, which one side being positioned... | 08/04/1992 |
| 5134947 | Method and apparatus for forming and everting a work product An overlock stitch is formed by sewing machine (11) (FIG. 1) into a work product (34) and the work product is accelerated away from the sewing machine so as to stretch the thread chain (FIG. 5). The stretched thread chain is cut by cutter (40), and the le... | 08/04/1992 |
| 5125351 | Thread trimmer system for in-line chain stitch cylinder bed sewing machine Apparatus and method for severing the needle and looper threads of a chain stitch formed by a cylinder bed sewing machine having an in-line looper system is disclosed. The cylinder bed sewing machine has a needle plate and a needle carrying the needle thr... | 06/30/1992 |
| 5123365 | Taped chaining thread sewing device A taped chaining thread sewing device is designed to sew by operation of an overedge sewing machine a tape into the upper surface of the fabric sent into the needle location of the sewing machine, and also sew the chaining thread cut off from the precedin... | 06/23/1992 |
| 5119747 | Chaining thread sew in device A chaining thread sew-in device for sewing a chaining thread produced consecutively in the seams of a preceding cloth and in the seams of a next cloth when forming seams by an overlock sewing machine. The free end of the chaining thread (Ch) cut off from ... | 06/09/1992 |
| 5090343 | Chaining thread sew-in device A chaining thread sew-in device for sewing a chaining thread produced consectively in the seams of a preceding cloth and in the seams of a next cloth when forming seams by an overlock sewing machine. The free end of the chaining thread (Ch) cut off from t... | 02/25/1992 |
| 5052318 | Adjustable stitch chain cutting assembly inlet An adjustable inlet including two members which act together to define an opening through which the stitch chain enters a stitch chain cutting assembly to be cut. Each member contains a top and a front side substantially perpendicular to each other. The m... | 10/01/1991 |
| 5027733 | Sewing machine with automatic separation of pieces of sewing material A sewing machine capable of automatically severing a thread chain between successive pieces of sewing material includes a cutting device provided behind a sewing needle in a feed direction of the sewing material, a suction device for sucking the thread ch... | 07/02/1991 |
| 4984526 | Thread chain guiding device for overedge sewing machines A thread chain guiding device provides a needle-thread-guide plate which extends underneath a throat plate by energizing a solenoid as needed. Thus, the needle-thread-guide plate pushes the needle threads twined around a lower looper outwardly away such t... | 01/15/1991 |
| 4967677 | Composite sewing machine with single needle for lock and overlock stitches A composite sewing machine has a lock stitch mechanism and an over-lock stitch mechanism. A switching mechanism is connected to the stitching mechanisms for switching the operation of the sewing machine between a lock stitch operation and an over-lock sti... | 11/06/1990 |
| 4938157 | Computerized numerical control automatic sewing device A CNC (Computerized Numerical Control) automatic sewing device comprises a sewing head and a workpiece holder movable in two co-ordinate directions perpendicular to one another for holding a workpiece to be sewn. A thread trimming device is provided adjac... | 07/03/1990 |
| 4934293 | Chaining thread sew-in device A chaining thread sew-in device of an overlock sewing machine is related having a first pinching plate and a second pinching plate which form a part of the working face of the sewing machine on the operator side of a needle drop point. The plates are capa... | 06/19/1990 |
| 4903623 | Hemmer seamer assembly A hemmer seamer assembly comprising an apparatus for positioning a chain of stitches for stitching onto fabric having a needle and a throat plate, including a device for positioning the chain of stitches forwardly of the needle, and a device for moving th... | 02/27/1990 |
| 4883010 | Thread chain cutting device A thread chain cutting device has a lower knife which has an obtuse-angled edge fixed at the rear of a presser foot and an upper knife which is movable up and down and has a flat plane opposite to the obtuse-angled edge of the lower knife, whereby a threa... | 11/28/1989 |
| 4858546 | Hemmer seamer assembly A hemmer seamer assembly comprising an apparatus for positioning a chain of stitches for stitching onto fabric having a needle and a throat plate, including a device for positioning the chain of stitches forwardly of the needle, and a device for moving th... | 08/22/1989 |
| 4834009 | Sleeve backtack An apparatus for cutting and positioning a chain of stitches for stitching onto material in a sewing machine having a needle and a throat plate, comprising, a cutting knife adapted to sever the chain of stitches after the chain has been sewn onto the mate... | 05/30/1989 |
| 4834010 | Reciprocating thread cutter for multi-needle looper thread type sewing machine A thread cutter for an interlock sewing machine wherein the sewing machine has a small diameter cylindrical arm and the cloth being sewn is fed along the axis of the arm. A plurality of needles are disposed along a line orthogonal to the axis of the arm a... | 05/30/1989 |
| 4829920 | Method and apparatus for positioning and holding a thread chain Apparatus and method of positioning and holding a thread chain for sewing onto successively fed workpieces, a thread chain which had been sewn beyond the rear edge of a workpiece and had been cut off flush with the rear edge of the workpiece, is sucked in... | 05/16/1989 |
| 4800830 | Hemmer seamer assembly A hemmer seamer assembly comprising an apparatus for positioning a chain of stitches for stitching onto fabric having a needle and a throat plate, including a device for positioning the chain of stitches forwardly of the needle, and a device for moving th... | 01/31/1989 |
| 4774900 | Apparatus for backtacking thread chain for use with a two-needle overedge sewing machine In a two-needle overedge sewing machine, a thread chain guide recess is formed for positioning the thread chain at a given position on the throat plate so that the thread chain is spaced apart from the outer needle descending point. The thread chain guide... | 10/04/1988 |
| 4763590 | Residual thread chain back tacking device for overlock stitch machines A residual thread chain back tacking device for stitching a residual thread chain in the proper position of a succeeding sewn cloth material has a thread chain cutting device which initially cuts most of the thread chain off, and then blows the remaining ... | 08/16/1988 |
| 4738210 | Backlatch attachment with a rotatable thread catcher An attachment for a semi-automatic sewing machine ensures that any excess thread chain extending from the leading or trailing edge of a garment during an operation on the garment with the sewing machine, is stitched directly to the garment so that no loos... | 04/19/1988 |
| 4735160 | Cutting device for a sewing machine A cutting device for a sewing machine is provided with a cutting instrument associated to a cutting zone. The cutting instrument is formed with a blade movable towards the cutting zone. Furthermore, a protective guard is provided with a blade cover surrou... | 04/05/1988 |
