| Patents for D01H 4 - Open-end spinning machines or arrangements for imparting twist to independently moving fibres separated from slivers; Piecing arrangements therefor; Covering endless core threads with fibres by open-end spinning techniques (4,993) |
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| 08/29/1991 | DE4104452A1 High speed rotor bearing - has heavy duty bearings and internal self lubrication |
| 08/28/1991 | EP0443220A1 Device and procedure for preparing the thread end to start or resume open-end spinning |
| 08/28/1991 | CN1013692B Method and apparatus for producing yarn |
| 07/31/1991 | EP0438846A1 Friction spinning apparatus |
| 07/25/1991 | WO1991010762A1 Release roller unit for open-ended spinning machines |
| 07/25/1991 | DE4036017A1 Sliver opening roller - contains outer rotor of electro-motor as dedicated drive with constant rotary speed |
| 07/17/1991 | EP0436754A1 Opening roller for an open-end spinning machine |
| 07/10/1991 | CN1013126B Method and equipment for free end spinning |
| 07/10/1991 | CN1013125B Open-end spinning process and device |
| 07/09/1991 | US5030019 Bearing for an open-end spinning rotor |
| 07/04/1991 | DE4040133A1 Core stretch yarn - produced on open-end rotor with speed controllers to regulate the stretch when spinning |
| 07/03/1991 | EP0435016A2 Open end spinning machine |
| 07/02/1991 | US5027594 Equipment for producing a yarn having loosened fibers and binding threads |
| 06/27/1991 | DE3942454A1 Open-end spinning rotor - has specified angles for the fibre to enter and leave the groove of the rotor |
| 06/27/1991 | DE3942402A1 Open=end rotor spinning frame - has robotic link mechanism to increase belt pressure at re-commencement of spinning |
| 06/19/1991 | CN2079191U Seizing-proof device for combing roller speed measuring |
| 06/11/1991 | US5022222 Process and device for piecing yarn to an open-end spinning device |
| 06/06/1991 | DE3940046A1 Open=end spinning rotor - has restrictive yarn outlet design made in sintered ceramic |
| 05/29/1991 | EP0428648A1 Step bearing for the shaft of a spinning rotor. |
| 05/28/1991 | US5019110 Needle ring with needles for the combing cylinder of an open-end spinning machine |
| 04/24/1991 | CN1012442B Method and device for joining thread in open-end friction-spining device |
| 04/23/1991 | US5008979 Textile-fiber treating grooved roller and a wire with teeth having a foot portion indented for force-fitting the wire into the groove and method of making same |
| 04/17/1991 | EP0423063A1 Protective coating for spinning machine parts |
| 04/17/1991 | EP0422615A2 Open end spinning device |
| 04/16/1991 | US5007136 Process for the production of a yarn from fiber material |
| 04/09/1991 | US5006367 Demagnetization, then plating of ferromagnetic substrate gives smooth surface |
| 04/09/1991 | US5005259 Opening roller for open end spinning machines |
| 04/02/1991 | US5004171 High-productivity bobbin winding method and devices for its implementation |
| 03/28/1991 | DE4026278A1 Open=end spinning arrangement - has device to re-arrange fibres suitably for spinning condenser yarn |
| 03/26/1991 | CA1281951C Combined carpet yarns by open end rotor spinning |
| 03/20/1991 | EP0417662A1 Method of initiating the working cycle of a service carriage on a textile machine |
| 03/20/1991 | EP0417599A2 Method and apparatus for transferring a yarn to a winding station of a textile machine |
| 03/14/1991 | DE3929963A1 Rotor for open=end spinning - has weft formation groove reduced for fine counts |
| 03/13/1991 | EP0416349A2 Open end spinning machine |
| 03/12/1991 | US4998404 Method and device for removing deteriorated fibres during yarn rejoining in an open-end spinning machine |
| 03/05/1991 | US4997528 Mold for, and method of, fabricating a perforated body and perforated body for use as a friction spinning element |
| 02/20/1991 | CN2071652U Rotary cup spinning device with muffler |
| 02/13/1991 | EP0412504A1 Opening Roller for an open-end spinning machine and method for producing it |
| 02/13/1991 | CN1011602B Opend-end spinning apparatus |
| 02/05/1991 | US4989401 Brake for an open-end spinning rotor |
| 01/30/1991 | EP0410020A1 Process and apparatus for automatically cleaning bobbin containers and/or the anti-ballooning devices of a two-for-one twisting spindle of a two-for-one twisting machine |
| 01/29/1991 | US4988048 Method and device for winding cross-wound bobbins |
| 01/23/1991 | EP0408949A1 Method of producing a thread out of fibre material |
| 01/16/1991 | EP0407732A1 Open-end spinning device |
| 01/09/1991 | EP0406601A1 Spinning or twisting device with a tubular element submitted to an optional negative pressure |
| 01/08/1991 | US4983808 Spinning machines |
| 01/03/1991 | DE3932574C1 Device for installation of open end- spinning rotors - comprises support with groove for holding replaceable centering prism, so that height of prism can be adapted to different bearing loads |
| 12/27/1990 | EP0403801A1 Open-end rotor spinning device |
| 12/12/1990 | EP0401516A1 Device and method for piecing yarn in an open-end spinning machine |
| 12/11/1990 | US4976099 Sliver feeding and opening device of an open end spinning machine |
| 11/29/1990 | DE3916237A1 Open-ended spinning rotor - has by=pass openings in fibre feed channel |
| 11/29/1990 | DE3915813A1 Spinning process using an open-end rotor - has indented inside surface at end of the feed channel |
| 11/27/1990 | US4972553 Combing device and method of processing staple fibers |
| 11/20/1990 | US4970855 Method and apparatus for piecing a reserve feed stock with a production feed stock |
| 11/15/1990 | WO1990013691A1 Opening roller for an open-ended spinning machine |
| 11/15/1990 | WO1990013690A1 Step bearing for the shaft of a spinning rotor |
| 11/15/1990 | DE3915022A1 Aufloesewalze fuer offenend-spinnmaschine Aufloesewalze for open-end spinning machine |
| 11/13/1990 | US4970422 Device with a thrust bearing |
| 11/13/1990 | US4969754 Rotational bearing arrangement for high speeds of rotation |
| 11/07/1990 | EP0395880A1 Method and device for joining of yarn in an open-ended rotor spinning machine |
| 11/06/1990 | US4968525 Coating bores to prevent penetration of fibers |
| 11/06/1990 | US4967549 Device and process for the storage of a yarn |
| 10/23/1990 | US4964581 Bobbin winding method comprising variable-duration interventions for restoring yarn continuity, and devices for its implementation |
| 10/23/1990 | US4964267 Method and apparatus for piecing a reserve feed stock with a production feed stock |
| 10/17/1990 | EP0392949A1 Rotary and hollow condensing guide and method for producing the same |
| 10/17/1990 | CN1046201A Preparation of fibres for spinning |
| 10/16/1990 | US4962638 Multi-position open-end spinning machine |
| 10/10/1990 | CN2063528U Bearing for combing roller |
| 10/04/1990 | DE3910321A1 Open-end rotor-spinning machine |
| 10/03/1990 | EP0276208B1 Process and device for resuming spinning on an open-end friction spinning device |
| 09/26/1990 | CN1045610A Method and device for piecing on open end spinning device |
| 09/25/1990 | US4958779 Method for restoring yarn continuity during bobbin winding, and devices for its implementation |
| 09/25/1990 | US4958485 Corespun yarn for fire resistant safety apparel |
| 09/18/1990 | US4957244 Bobbin winding method, and devices for implementing said method |
| 09/12/1990 | EP0387009A2 Yarn piecing method and yarn piecing apparatus |
| 09/05/1990 | EP0385531A1 Method and device for rejoining yarn in an automatic open-end spinning machine |
| 09/05/1990 | EP0385530A1 Improved open-end spinning machine |
| 08/22/1990 | CN1044834A Corespun yarn friction spinning apparatus and method |
| 08/16/1990 | EP0381995A2 Piecing method and apparatus for an open end spinning machine |
| 08/08/1990 | EP0380648A1 Support assembly for the rotor of an open end yarn spinning apparatus |
| 08/08/1990 | EP0380635A1 Spinning method of the open end type, and device for implementing such method |
| 08/02/1990 | DE3937729A1 Open end rotor spinning frame - has robotic device to automatically shut down a hazardous unit |
| 08/01/1990 | CN1044312A Corespun yarn for fire resistant safety apparel and method |
| 07/26/1990 | WO1990008211A1 Preparation of fibres for spinning |
| 07/18/1990 | CN1043967A Method of producing imitating wool spinning by thread waste |
| 07/10/1990 | US4939897 Opening cylinder unit for open-end spinning machines |
| 07/10/1990 | US4939895 Spinning machine with can replacement apparatus |
| 07/03/1990 | US4938018 Friction spinning machine |
| 06/27/1990 | EP0375113A2 Corespun yarn for fire resistant safety apparel and method |
| 06/27/1990 | EP0375112A2 Corespun yarn friction spinning apparatus and method |
| 06/27/1990 | EP0374983A1 Method and device for removing deteriorated fibres during yarn rejoining in an open-end spinning machine |
| 06/27/1990 | EP0374982A1 Method and device for rejoining yarn with high efficiency in an open-end spinning machine |
| 06/12/1990 | US4932202 Yarn draw-off pipe for an open-end spinning device |
| 06/12/1990 | US4932201 Method to engage and insert sliver into free fiber spinning units and device which employs the method |
| 06/12/1990 | US4932199 Open-end spinning device |
| 06/12/1990 | CA1270112A1 Method and apparatus for opening a sliver |
| 06/06/1990 | CN1008278B Method and device for joining thread in friction-spinning device |
| 06/06/1990 | CN1008277B Method and apparatus for producing nultihead fibre-supply yarn |
| 05/31/1990 | WO1990005802A1 Spinning of yarn |
| 05/30/1990 | CN1008193B Open end spinner piecing method and apparatus and multi-position friction spinner embodying same |