Patents in subclass Excavating/Clamshell Bucket
Parent class: Excavating
| Number | Patent title | Issue Date |
|---|---|---|
| 06896306 | Actuator mechanism for a two-bucket grab device Actuator mechanism for a two-bucket grab device and having two grab arms arranged to move as pincers with respect to one another, has two hydraulic pivot motors with journals of the respective pivot shafts projecting from the motor... |
05/24/2005 |
| 06823616 | Method of excavating A method of excavating a surface layer of soil is disclosed that uses an excavator with a grab having two bucket halves with cutting edge. In a first excavating position, the grab is held in a first orientation as seen in projection on a... |
11/30/2004 |
| 06540925 | Oil recovery method and oil recovery apparatus An apparatus for recovering oil has a bucket for skimming and collecting water and oil floating on the surface of the water. The bucket has a base plate having apertures for draining water collected by the bucket. The apertures have a... |
04/01/2003 |
| 06401368 | Method and apparatus for excavating a trench An excavator and a method of use of the excavator is provided for use in excavating a trench having a pipeline extending along one side thereof in a longitudinal direction of the trench. The excavator is positioned adjacent the pipeline... |
06/11/2002 |
| 6145517 | Method of removing agglomerations of polyethylene from reactor A method of removing a solidified body of polyethylene from a Unipol reactor using a robotic apparatus extended through a porthole on top of the reactor. |
11/14/2000 |
| 6023862 | Control system for rope bucket A control system for a rope bucket, the rope bucket being designed for the hoisting and transfer of materials and adapted to be suspended from a hoist trolley transferable along an essentially horizontal travel path. The control system... |
02/15/2000 |
| 5715614 | Transplant apparatus A transplant machine including a bucket for digging a plant such as trees and shrubs from the ground, a main frame for pivotably supporting the bucket, an arm for lifting the main frame, a shaft extending from the main frame at right... |
02/10/1998 |
| 5638616 | Oil supply mechanism in a deep excavator An oil supply mechanism in a deep excavator comprising a chassis, a turntable disposed on the chassis, a boom which is pivotally supported on the turntable and is vertically swingable, a stretchable arm arrangement which is stretchable in... |
06/17/1997 |