Patents in subclass Excavating/And Material Size Reducer (E.G., Crusher)
Parent class: Excavating
| Number | Patent title | Issue Date |
|---|---|---|
| 5802747 | Crusher A driving device of a jaw crusher of attachment type comprising a hydraulic cylinder having a rod connected with a movable member; a hydraulic source provided on a body of a hydraulic excavator having a mobile travel device; and a control... |
09/08/1998 |
| 5651200 | Debris exclusion devices for an augerhead type hydraulic dredge system The present invention pertains to debris exclusion devices designed for use on a small augerhead type hydraulic dredge system for operations in debris laden channels that can cause the system's pump to malfunction. Debris to be excluded... |
07/29/1997 |