Alfred Zitz
64Patents
11h-index
45Co-inventors
78Inventor score
Filing activity: Jun 12, 1975 → May 28, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4247150A | Bit arrangement for a cutting tool | Fixed Constructions | 89 | Expired |
| US4542942A | Bit holder equipped with a spraying device | Fixed Constructions | 28 | Expired |
| US5050934A | Shearing machine with roof-bolt drilling and setting devices | Fixed Constructions | 19 | Expired |
| US5881832A | Method of controlling interlinked vehicles in mining and tunnelling as well as arrangement for carrying out this method | Physics | 14 | Expired |
| US5333936A | Low profile mining machine having a cutter mounted on a slidable carriage | Fixed Constructions | 13 | Expired |
| US4784439A | Movable cutting machine | Fixed Constructions | 13 | Expired |
| US4664449A | Drift advancing or mining machine | Fixed Constructions | 13 | Expired |
| US4159746A | Bit of circular cross-section | Fixed Constructions | 13 | Expired |
| US5098166A | Device for feeding fluid for the spraying of picks in a shearing drum | Fixed Constructions | 12 | Expired |
| US4289357A | Hollow cutting head | Fixed Constructions | 11 | Expired |
| US4456306A | Cooling system for cooling the bits of a cutting machine | Fixed Constructions | 11 | Expired |
| US4591209A | Protecting device for partial-cut cutting machines | Fixed Constructions | 11 | Expired |
| US5498069A | Bit holder with a detachably fixed bit bushing | Fixed Constructions | 10 | Expired |
| US4145197A | Impeller for separating dust particles from an air stream | Fixed Constructions | 10 | Expired |
| US4020640A | Shield structure | Fixed Constructions | 10 | Expired |
| US4225144A | Device for sealing the gap between component parts rotatable relative to each other | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4776445A | Device for transferring the cup heap of debris onto a drift conveying means | Fixed Constructions | 9 | Expired |
| US4261617A | Method of controlling the working motion of a cutting tool of a tunnel-driving machine over the breast, and apparatus for carrying out the method | Fixed Constructions | 9 | Expired |
| US5072994A | Shearing machine with movable shearing drum and conveyor | Fixed Constructions | 9 | Expired |
| US4162104A | Cutting machine | Chemistry; Metallurgy | 8 | Expired |
| US4770469A | Process for controlling the movement of a universally swivellable cutting arm of a partial cut cutting machine as well as apparatus for performing this process | Fixed Constructions | 8 | Expired |
| US4193778A | Device for removing dust-shaped particles from an air stream serving for the ventilation of mines | Emerging Cross-Sectional Technologies | 7 | Expired |
| US4111488A | Method for cutting minerals and cutting machine | Fixed Constructions | 7 | Expired |
| US4966417A | Device for guying a drift advancing machine within a drift | Fixed Constructions | 7 | Expired |
| US4098539A | Cutting machine | Fixed Constructions | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.