W. Schlafhorst AG & Co.
621Patents
0Active
621Granted
44Portfolio score
Filing activity: Apr 17, 1972 → Jul 16, 2003
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5796598A | Voltage-converting circuit for the power supply of an electrical consumer of high output, particularly a bobbin winding machine | Electricity | 137 | Expired |
| US5341549A | Apparatus for removing yarn remnants | Performing Operations; Transporting | 99 | Expired |
| US5295570A | Magnetic guiding assembly for yarn packages transported on a textile machine | Performing Operations; Transporting | 72 | Expired |
| US5334917A | System and method for optimally driving a DC motor | Electricity | 41 | Expired |
| US4150534A | Method and apparatus for exchanging sliver cans | Textiles; Paper | 35 | Expired |
| US4125990A | Open-end spinning machine | Performing Operations; Transporting | 34 | Expired |
| US4939895A | Spinning machine with can replacement apparatus | Textiles; Paper | 33 | Expired |
| US5190136A | Magnetic guiding assembly for yarn packages transported on a textile machine | Emerging Cross-Sectional Technologies | 32 | Expired |
| US4150530A | Method and device for controlling the thread joining in rotor spinning machines | Textiles; Paper | 25 | Expired |
| US4571931A | Spinning and winding plant | Emerging Cross-Sectional Technologies | 24 | Expired |
| US4555215A | Spool transporting device | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4719662A | Dust-removal apparatus for textile machines and machine rooms | Performing Operations; Transporting | 22 | Expired |
| US5329822A | Yarn tension sensor for a textile machine | Performing Operations; Transporting | 22 | Expired |
| US4232509A | Method and device for joining an upper thread to a lower thread | Performing Operations; Transporting | 21 | Expired |
| US6124658A | Bearing assembly for an open-end spinning machine | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US4217749A | Method and apparatus for joining textile threads | Performing Operations; Transporting | 21 | Expired |
| US4120462A | Method and device for controlling and/or regulating thread tension during winding of a textile coil | Performing Operations; Transporting | 20 | Expired |
| US5308001A | Transport system for circulating and accumulating tube support members in association with a bobbin winding machine | Textiles; Paper | 20 | Expired |
| US4878630A | Guide roller assembly | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4033104A | Method and device for replacing a sliver container | Textiles; Paper | 19 | Expired |
| US4573313A | Method and apparatus for feeding a dosed mixture of splicing air and liquid into the splicing chamber of a compressed-air yarn splicing device | Performing Operations; Transporting | 19 | Expired |
| US4497168A | Method and apparatus for open-end spinning | Textiles; Paper | 18 | Expired |
| US5959383A | Thrust bearing for an open-end spinning rotor | Mechanical Engineering; Lighting; Heating | 18 | Expired |
| US4843808A | Method and device for monitoring the quality of yarns and wound packages produced by and the quality of operation of a textile machine | Performing Operations; Transporting | 18 | Expired |
| US5056725A | Assembly for readying yarn packages for unwinding at a textile winding machine | Performing Operations; Transporting | 18 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.