Patents
Patents for D05B 51 - Applications of needle-thread guards in sewing machines; Thread-break detectors for sewing machines (345)
10/1985
10/23/1985EP0158708A2 Thread breakage or exhaustion detector for sewing machine
11/1984
11/06/1984US4481507 Abnormal condition warning apparatus for a sewing machine
07/1984
07/03/1984US4457247 Thread control mechanism for sewing machines
06/1984
06/12/1984US4453477 Thread consuming machine with thread coloring device and related process
04/1984
04/24/1984US4444132 Yarn breakage stop motion device for textile machines
02/1984
02/07/1984US4429651 Device for detecting absence of a thread in a sewing machine
01/1984
01/24/1984US4427165 Sewing machine thread guide with protective guard
01/24/1984US4426948 Yarn detector for short seam sewing machines
11/1983
11/08/1983US4413581 Optical switching arrangement for a sewing machine
10/1983
10/11/1983US4408554 Automatic needle thread control apparatus
02/1983
02/15/1983US4373458 Method and machine for versatile stitching
02/08/1983US4372235 Thread monitoring device
12/1982
12/21/1982US4364319 Controlled thread clamp device for needle threads
11/1982
11/02/1982US4356781 Thread handling arrangement for sewing machines
10/1982
10/19/1982CA1134004A1 Sewing machine thread monitor
07/1982
07/27/1982US4341171 Thread handling device for lockstitch sewing machines
05/1982
05/11/1982US4328756 Sewing machine thread tension control system
04/1982
04/20/1982US4325314 Thread control mechanism for sewing machines
10/1981
10/27/1981US4296701 Threading arrangement for chainstitch sewing on a sewing machine
08/1981
08/18/1981US4284020 Thread monitor for textile machines
05/1981
05/26/1981US4269131 Thread control device for stitching machines
02/1981
02/03/1981US4248169 Intermittently operable needle thread snubber
12/1980
12/30/1980US4241679 Inertial thread snubbing device for a sewing machine
12/30/1980US4241678 Device for automatically threading a sewing machine
09/1980
09/09/1980US4221180 Compact upper thread tension device
07/1980
07/08/1980US4211373 Thread guiding system for sewing machine bobbin winders
04/1980
04/08/1980US4196685 Thread abnormality detection utilizing integrator and comparator in conjunction with rotary thread tension disk
03/1980
03/11/1980US4192243 Sewing machine thread monitor
02/1980
02/19/1980CA1071895A1 Apparatus for converting oscillatory motion to reciprocating motion
02/05/1980US4186672 Sewing machine monitor
01/1980
01/15/1980US4183313 Sewing machine cassette threading system
10/1979
10/16/1979US4170951 Skipped stitch detection system
07/1979
07/17/1979US4161152 Pretension threading device
07/17/1979CA1058451A1 Skipped stitch detector for chain stitch sewing machines
01/1979
01/16/1979US4134351 Sewing machine
12/1978
12/19/1978CA1044528A1 Thread-tensioning mechanism for the stop motion means of a multi-needle sewing machine
09/1978
09/05/1978US4111140 Thread tensioning device for a sewing machine
07/1978
07/25/1978US4102283 Skipped stitch detector for chain stitch sewing machines
02/1978
02/28/1978US4075958 Sewing machine automatic thread changer
11/1977
11/22/1977US4059021 Apparatus for converting oscillatory motion to reciprocating motion
07/1977
07/19/1977US4036157 Automatic thread changer
04/1977
04/19/1977US4018175 Thread-tensioning mechanism for the stop motion means of a multi-needle sewing machine
08/1976
08/03/1976US3972298 Pretension threading device
06/1976
06/01/1976US3960098 Thread wiper and tension release mechanism for securing machines
03/1976
03/16/1976US3943865 Controlled delivery of yarn
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