Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7478834 | Movable concrete pump comprising a distribution boom | — | 2009-01-20 |
| 6338615 | Pipe switch for two-cylinder thick-material pump | Hellmut Hurr, Hartmut Benckert | 2002-01-15 |
| 6158313 | Process for conveying thick matter containing preshredded scrap metal or similar solids | Ulrich Schuster, Wolfgang Zey | 2000-12-12 |
| 6068025 | Delivery line for cement | — | 2000-05-30 |
| 5988028 | Process for conveying thick matter containing preshredded scrap metal or similar solids | Ulrich Schuster, Wolfgang Zey | 1999-11-23 |
| 5823218 | Large manipulator, especially for self-propelled concrete pumps, and method for operating it | Hartmut Benckert | 1998-10-20 |
| 5746247 | Slide valve for a twin-cylinder pump for viscous fluids | Hellmut Hurr | 1998-05-05 |
| 5720069 | Arrangement for surface treatment, especially the cleaning of the surfaces of large objects | Martin Wanner, Dietmar Fuegel, Stefan Fritz | 1998-02-24 |
| 5640996 | Large manipulator, especially for self-propelled concrete pumps | Hartmut Benckert | 1997-06-24 |
| 5605174 | Device for conveying thick substances containing a great deal of solid material | Axel Rockstroh, Ulrich Schuster | 1997-02-25 |
| 5578752 | Process for measuring the flow rate of thick matter pumps | Axel Rockstroh | 1996-11-26 |
| 5535780 | Concrete-distribution rig | Dieter Alwes | 1996-07-16 |
| 5522677 | Travelling concreting device | — | 1996-06-04 |
| 5302094 | Tube switch for a double-cylinder sludge pump | Hartmut Benckert | 1994-04-12 |
| 5183356 | Method and device for distributing pumpable thick matter into several delivery pipes | Manfred Kempf | 1993-02-02 |
| 5127429 | Method and device for distributing pumpable thick matter into several delivery pipes | Manfred Kempf | 1992-07-07 |
| 5037275 | Pipe junction switch for two-cylinder thick-material pump | — | 1991-08-06 |
| 4900191 | Method for removal of broken ground | — | 1990-02-13 |
| 4893992 | Two-cylinder thick-material pump | — | 1990-01-16 |
| 4653990 | Positive double-piston displacement pump conveying pasteous material | — | 1987-03-31 |
| 4418713 | Concrete pump tractor trailer assembly | — | 1983-12-06 |
| 4382752 | Twin-cylinder pump, in particular for pumping thick liquids | — | 1983-05-10 |