| Patents for D05B 47 - Needle-thread tensioning devices for sewing machines; Applications of tensometers in sewing machines (837) |
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| 09/13/1994 | US5345887 Thread manipulations at the beginning and end of a seam |
| 08/23/1994 | CA1331595C Dynamic test system for sewing threads |
| 05/31/1994 | US5315945 Apparatus and method for thread supplying in a chain stitch sewing machine |
| 04/05/1994 | US5299517 Thread tension adjusting apparatus for a sewing machine |
| 03/17/1994 | DE4230747A1 Industrial sewing machine - has dual presser foot to accommodate double thickness material when stitching |
| 12/16/1993 | DE4218862A1 Sewing machine - has thread tension regulator with attached lever to feed thread at desired angle |
| 11/30/1993 | US5265548 Thread tension apparatus |
| 10/05/1993 | US5249538 Sewing apparatus equipped with an automatic thread supply device |
| 08/24/1993 | US5237944 Stitch-forming machine with a transducer and a control device |
| 06/08/1993 | US5216970 Mode changer with stitch length, width, and thread tension adjustments |
| 05/18/1993 | US5211122 Thread tension device for a sewing machine |
| 03/17/1993 | CN1070015A Sewing way changing device for lock-edge sewing machine |
| 03/09/1993 | US5191847 To be secured to the frame of a sewing machine |
| 02/16/1993 | US5186114 Thread tension adjusting apparatus for a sewing machine |
| 01/07/1993 | EP0521663A1 Apparatus and method for thread supplying of a chain stitch sewing machine |
| 12/03/1992 | DE4141945C1 Sewing machine thread tensioner - has tensioning element in effective connection with electromagnet |
| 12/03/1992 | DE4132991C1 Producing seam having short thread ends on bottom of workpiece - involves drawing back needle thread from underside of workpiece so that only short thread piece remains on underside |
| 12/02/1992 | EP0420856B1 Thread-cutting device for sewing machines |
| 10/20/1992 | US5156105 Thread tension adjusting device for a sewing machine |
| 08/18/1992 | US5138961 Thread supply device used in a sewing apparatus with a plurality of needles |
| 08/11/1992 | US5136958 Thread chain formed by an overlocking sewing machine and a method for making the thread chain |
| 08/05/1992 | EP0445157B1 Sewing machine with transducer and control device |
| 07/21/1992 | US5131338 Needle thread regulating mechanism for sewing machines |
| 06/24/1992 | CN1017169B Process for supplying thread to sewing machine and suspending frame used for same |
| 05/19/1992 | US5113774 Thread cutting device on a sewing machine |
| 04/28/1992 | US5107779 Process and device for recognizing missed stitches during the operation of a sewing machine |
| 10/15/1991 | US5056446 Automatic thread supply device |
| 10/09/1991 | EP0451087A1 Thread tension controlling device for sewing machine |
| 09/11/1991 | EP0445157A1 Sewing machine with transducer and control device. |
| 08/27/1991 | US5042408 Sewing machine having thread cutting mechanism and method for minimizing length of leading end portion of needle thread |
| 08/27/1991 | US5042407 Device having adjacent plates with thread gripping surfaces for controlling thread tension therebetween |
| 07/23/1991 | US5033400 Thread tensioning device for a sewing machine |
| 06/11/1991 | US5022335 Upper thread supplying device in sewing machine |
| 05/08/1991 | DE4032130A1 Sewing machine upper thread guide - is released after thread cutting to prevent stitches missed or jumped on starting a new seam |
| 04/10/1991 | EP0420856A1 Thread-cutting device for sewing machines. |
| 04/09/1991 | US5005505 Method of supplying thread from a reel to sewing machine and hanger used therein |
| 03/26/1991 | US5001997 Sewing mechanism for quilting machine |
| 03/12/1991 | US4998491 Method of automatically controlling upper thread tension in a sewing machine |
| 02/19/1991 | US4993337 Sewing machine with automatic thread control and thread breakage detecting devices |
| 11/06/1990 | US4967679 Automatic thread tension control sewing machine |
| 10/31/1990 | DE4013648A1 Sewing machine thread scanner - monitors thread for breakages and is stopped by sensor for thread motion or tension |
| 10/31/1990 | DE4004280A1 Thread feeding mechanism - for sewing machines with two non-contacting-rollers for min. hold-back forces |
| 10/02/1990 | US4960062 Sewing machine automatic thread tension device with thread elongation detector |
| 08/21/1990 | US4949657 Sewing machine with a device for amending thread tightening by needle positions |
| 07/25/1990 | EP0378885A1 Dynamic test system for sewing threads |
| 06/28/1990 | DE3843373A1 Sewing machine thread tensioner |
| 06/21/1990 | DE3842387A1 Device for controlling the top-thread braking force |
| 06/19/1990 | US4934291 Needle thread supply device in two needle sewing machine with one needle pause function |
| 06/12/1990 | US4932346 Feeding control apparatus for a plurality of threads |
| 05/31/1990 | WO1990005804A1 Sewing machine with transducer and control device |
| 04/25/1990 | CN1041624A Process for supplying thread to sewing machine and suspending frame used for same |
| 03/21/1990 | EP0359707A1 Device for regulating the tension of a longitudinally moving thread, and the use of such a device |
| 01/09/1990 | US4892048 Automatic thread tightening device for a sewing machine |
| 12/14/1989 | WO1989012129A1 Thread-cutting device for sewing machines |
| 12/12/1989 | US4886004 Needle thread tension control including separate stopping and adjustable pre-tension devices |
| 10/17/1989 | US4873931 Programmed thread regulating apparatus for a sewing machine |
| 09/26/1989 | US4869186 Needle thread tension control system with differential clamping |
| 09/19/1989 | US4867082 Electronic device for autosetting control in industrial sewing machines |
| 05/02/1989 | US4825786 Sewing method and apparatus |
| 05/02/1989 | US4825785 Latch tacker |
| 02/14/1989 | US4803936 Thread tension device for overedge sewing machines |
| 01/17/1989 | US4798152 For viewing the region of stitch formation of a sewing machineT?????h)??????? |
| 01/10/1989 | US4796552 Latch tacker |
| 12/27/1988 | US4793273 Automatic thread tension device for a sewing machine |
| 12/14/1988 | EP0295138A1 Sewing method and apparatus |
| 10/11/1988 | US4776293 Automatic needle thread supply control system for a sewing machine |
| 08/30/1988 | US4766827 Thread measuring and feeding apparatus for a sewing machine |
| 04/27/1988 | EP0265267A2 Automatic needle thread supply control system |
| 04/27/1988 | EP0264515A1 Thread feeding apparatus for a sewing machine |
| 03/29/1988 | US4733622 Thread end holder for sewing machine with thread winding bobbin |
| 02/23/1988 | US4726308 Thread tension control device for overedge sewing machines |
| 11/10/1987 | US4704975 Upper and lower thread tension devices for sewing machine |
| 10/27/1987 | US4702185 Sewing machine with an automatic thread tension device |
| 10/20/1987 | US4700644 Sewing machine having an automatic lower thread tension device |
| 09/22/1987 | US4694765 Adjustable apparatus for sewing machine thread tensioning device |
| 09/01/1987 | US4690083 Automatic upper thread tension control for a sewing machine |
| 09/01/1987 | US4690082 Device for regulating upper thread tension of a sewing machine |
| 05/05/1987 | US4662294 Device at a sewing machine for applying a tensile stress in a material to be fed in a sewing process |
| 04/07/1987 | US4655152 Thread clamp for sewing machines |
| 03/17/1987 | US4649844 Thread feeding apparatus for sewing machine |
| 02/19/1987 | DE3540126A1 Method and apparatus for the integrated monitoring of the upper and lower threads in sewing machines and automatic sewers and of the sewing process |
| 01/27/1987 | US4638751 Sewing machine with a device for setting thread tension |
| 01/06/1987 | US4633794 Device for detecting fabric thickness of a sewing machine |
| 12/30/1986 | US4632048 Method of controlling upper thread in sewing machine |
| 12/10/1986 | EP0204426A1 Upper thread guide mechanism for sewing machines |
| 09/16/1986 | US4611547 Upper thread tension device of a sewing machine |
| 08/06/1986 | EP0189682A1 Thread feeding apparatus for a sewing machine |
| 06/17/1986 | US4594954 Sewing device with a sewing head including a rotary housing |
| 03/11/1986 | US4574718 Sewing machine head including a rotary housing |
| 01/28/1986 | US4566396 Thread feed mechanism in sewing machine |
| 01/21/1986 | US4565143 Method of automatically adjusting thread tension in a sewing machine |
| 01/14/1986 | US4563965 Acoustical shield assembly and mating thread preguide unit |
| 10/08/1985 | US4545311 Thread tensioning device for a sewing machine |
| 09/17/1985 | US4541350 Thread retaining cloth strip for lockstitch sewing machines |
| 07/24/1985 | EP0149283A1 Device for measuring thread tension |
| 06/04/1985 | US4520743 Needle thread tensioning device for a sewing machine |
| 08/21/1984 | US4466371 Threading arrangement for a sewing machine |
| 06/12/1984 | US4453480 Thread tensioning module for a sewing machine |
| 11/22/1983 | US4416207 Blind stitch sewing machine |
| 10/11/1983 | US4408554 Automatic needle thread control apparatus |