Martin E. Kummer
33Patents
9h-index
36Co-inventors
75Inventor score
Filing activity: Apr 14, 1982 → Feb 4, 2015
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5320205A | Wear adjustment for a clutch | Mechanical Engineering; Lighting; Heating | 31 | Expired |
| US5146682A | Hand-held circular saw | Performing Operations; Transporting | 29 | Expired |
| US5315193A | Hand-guided machine tool comprising a radial blower | Electricity | 27 | Expired |
| US5251737A | Self-adjusting means and method for friction clutches | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US5031739A | Two piece clutch brake | Mechanical Engineering; Lighting; Heating | 20 | Expired |
| US5531308A | Wear indicator for an automatically adjusting friction torque device | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6109412A | Automatically adjusting friction clutch with over adjustment protection and reset mechanism | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US4479569A | Spring means for a clutch | Mechanical Engineering; Lighting; Heating | 14 | Expired |
| US5566804A | Automatically adjusting friction torque device | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6129191A | Friction clutch with impeller fan feature for pressure plate cooling | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5564541A | Travel limit for an automatically adjusting friction torque device | Emerging Cross-Sectional Technologies | 9 | Expired |
| US4632235A | Clutch with cantilevered Belleville spring | Mechanical Engineering; Lighting; Heating | 7 | Expired |
| US5564542A | Automatically adjusting friction torque device with diaphragm spring | Emerging Cross-Sectional Technologies | 7 | Expired |
| US5595274A | Automatically adjusting friction torque device with relatively rotating cam rings | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6609602B2 | Friction clutch with installation device | Emerging Cross-Sectional Technologies | 6 | Expired |
| US4667799A | Shim cap device for clutch lever adjustment | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6698564B2 | Ramp segments for centrifugal ramp reaction plate | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6827193B2 | Adjustable friction torque device | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US4793456A | Variable ratio clutch lever | Emerging Cross-Sectional Technologies | 5 | Expired |
| US8967352B2 | Low driven inertia dual clutch | Mechanical Engineering; Lighting; Heating | 4 | Active |
| US6053297A | Automatically adjusting friction clutch with torsion spring housing | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US6571923B2 | Clutch adjustment travel stop | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US4863004A | Spring clutch assembly | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US7832535B2 | Method of controlling an external activation clutch brake | Performing Operations; Transporting | 3 | Active |
| US7641032B2 | Clutch pedal control system for an external activation clutch brake | Performing Operations; Transporting | 2 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.