Inventor
Rolf Vollmer
Inventor
Gersfeld, DE
Overview
Patents· 60 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H02Kprimary
H02KDynamo-electric machines64%
Y10TTechnical subjects covered by former us classification10%
F16CShafts6%
H01FMagnets4%
B23BTurning2%
B23CMilling2%
G01DMeasuring not specially adapted for a specific variable2%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution2%
B29CShaping or joining of plastics1%
F03DWind motors1%
PatentTitleYear
11,031,838Housing unit for an electric machine202110,965,200Rotating electric machine202110,873,228Rotor of an electric machine202010,581,290Reluctance armature202010,447,101Permanent magnet rotor with sickle-shaped envelope for polar permanent magnet running arcuately along the rotor boundary201910,236,730Electric machine with low magnetic slot leakage201910,211,691Permanent magnet rotor for an electric machine201910,199,888Rotor of a dynamoelectric rotary machine201910,135,309Electrical machine having a flux-concentrating permanent magnet rotor and reduction of the axial leakage flux201810,122,230Permanent-field armature with guided magnetic field201810,097,055Permanently-excited dynamoelectric machine201810,014,737Rotor for an electric machine20189,954,404Permanently magnetically excited electric machine20189,935,534Electric machine with permanently excited inner stator20189,673,672'Individual-segment rotor having retaining rings'20179,568,046'Magnetic radial bearing having single sheets in the tangential direction'20179,543,805'Axial bearing device having increased iron filling'20179,509,185'Rotor with permanent excitation including permanent magnets and soft-magnetic flux conducting elements therebetween, electric machine having such a rotor and manufacturing method for the rotor'20169,496,779'Drive device for rotational and linear movements with decoupled inertias'20169,461,511'Electric machine with permanently excited armature and associated permanently excited armature'20169,401,628'Permanently excited synchronous machine with ferrite magnets'20169,343,935'Rotor of a permanently excited synchronous machine'20169,312,732'Rotor with permanent excitation having permanent magnets and flux conducting elements therebetween, electric machine having such a rotor and manufacturing method for the rotor'20169,291,197'Magnetic radial bearing with three-phase control'20169,160,206'Permanent-magnet-excited electric motor with heating device, and operating method'20158,922,072'Electrical machine with a cooling channel and method for manufacturing the same'20148,853,894'Cylindrical linear motor having low cogging forces'20148,674,560'Linear drive module for a rotary/linear drive'20148,441,158'Linear motor with reduced force ripple'20138,378,541'Magnetic radial bearing and magnetic bearing system having a three-phase controller'20138,283,815'Electrical machine'20128,227,951'Permanent-magnet synchronous machine having skewed magnets for reduced torque ripple'20128,134,273'Electrical machine with skew-running magnet pole boundaries'20128,115,360'Electric machine with stepped winding structure'20128,063,517'Combination drive with a hybrid reluctance motor'20118,035,371'Measuring system for detecting a rotary-linear displacement and corresponding rotary-linear drive'20118,026,640'Electric machine having a rotary and a linear actuator'20117,977,826'Multipole permanent-magnet synchronous machine having tooth-wound coils'20117,915,777'Ring coil motor'20117,859,160'Electric machine with concentrated windings'20107,777,373'Cooling device of an electrical machine'20107,755,315'Rotary linear drive having a transmitter device'20107,732,967'Electrical machine comprising a winding system with coil groups'20107,709,984'Device for determining a shaft center deviation'20107,705,507'Electrical machine having a three-phase winding system'20107,564,158'Three-phase synchronous machine having a permanent magnet rotor with an induction cage'20097,285,883'Drive system for linear and rotary movements'20077,141,905'Permanent magnet synchronous machine'20066,943,467'Electric machine with heat pipes'20056,885,187'Transmitter system for a ferraris motion transmitter'20056,879,079'Permanent magnet rotor electrical synchronous machine with different alternatively arranged tooth pitch widths'20056,858,965'Stator for a synchronous machine'20056,812,612'Stator for a synchronous machine'20046,768,238'Rotor for a permanent magnet synchronous machine'20046,628,031'Harmonic-frequency synchronous machine with flux concentration'20036,483,221'Electric motor'20025,911,548'Tool for the production of arc-shaped grooves'19995,755,536'indexable cutting insert'19985,676,505'Method and milling tool to make deep grooves in a workpiece, especially in rotors of generators and turbines'19974,799,837'Multi-component chucking system, particularly for rotary machine tools, such as drills, boring tools boring mills and the like'1989Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1989–1999Based in Tubingen, DE· patent location history
1997–1999Patents assigned to WALTER AG (3)· patent assignee history
2002–2021Patents assigned to SIEMENS AG (56)· patent assignee history
2002–2021Based in Gersfeld, DE· patent location history
2011–2017Patents assigned to VOLLMER ROLF (14)· patent assignee history
2011–2014Patents assigned to BOTT ERICH (2)· patent assignee history
2011–2015Patents assigned to POTORADI DETLEF (2)· patent assignee history
2020Based in Gertsfeld, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SIEMENS AG | 56 | 2002–2021 |
| VOLLMER ROLFself | 14 | 2011–2017 |
| WALTER AG | 3 | 1997–1999 |
| BOTT ERICH | 2 | 2011–2014 |
| POTORADI DETLEF | 2 | 2011–2015 |
Locations
| Location | Patents | Span |
|---|---|---|
| Gersfeld, DE | 55 | 2002–2021 |
| Tubingen, DE | 4 | 1989–1999 |
| Gertsfeld, DE | 1 | 2020 |