| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 037142500 | DITCH FILLER | 6 |
| 20080313933 | Backfill attachment device - A hole filling or blast hole filling attachment machine that incorporates a separate vehicle for mobility and power to operate dirt of drill tailing gathering blades and a rotatable blade assembly. The assembly includes a circular housing with a central opening for access to a drilled hole in the ground. No less than six arcuate blades extend outwardly from the center of the circular housing. Two curved dirt gathering blades are mounted with hydraulic cylinders outside of the circular rotating blades and protective housing to pull more tailings toward the arcuate blades. An electromagnet is used to retrieve the primer cord and to raise it up and away from the moving blades. The machine incorporates a video camera and video monitor to observe the hole or blast hole to allow the operator to correctly position the machine over the hole. | 12-25-2008 |
| 20090031591 | Apparatus and a method for constructing an underground continuous filling wall and stratum - A number of slot filling-compressing members are inserted from a framework into and across a slot-shaped excavation at ahead of a frontal face of a continuous, compacted slot filling being formed along the slot, and moved with a drive means connected to the members for intermittently forcing portions of the members against the filling to compress the filling adjacent to the members longitudinally against the face. The compacted filling is in this way formed by longitudinal pressure. The members can be mounted for forward or reciprocating movement in directions along and across the face. | 02-05-2009 |
| 20110277356 | SYSTEM AND METHOD FOR PIPELINE PADDING - A method and apparatus are disclosed for padding a pipeline lying in a ditch by separating fine particles from coarse particles in the material excavated from the ditch and windrowed along the side of the ditch comprising moving a frame supporting a rotating separator drum at the desired distance above ground to engage windrowed material at the level required to obtain sufficient fines to pad the pipeline while rotating the separating drum to separate the fine and coarse material and conveying the fines laterally into the ditch. | 11-17-2011 |
| 20140144051 | Trench Filling Machine - The present invention is directed to a machine for filling a trench. The machine comprises a tub, release assembly, and a hopper. The tub mixes a material to be filled into the trench. The release assembly releases the material into the hopper and the material flows from the hopper and into the trench. The machine moves parallel to the trench as the trench is being filled. An operator controls the movement of the machine from an operator station on the machine. | 05-29-2014 |
| 20150315763 | BACKFILL DEVICE AND METHOD WITH ROTATING DRUM - A backfilling device for backfilling an open trench and padding a pipe within the trench has a lateral earth moving device and a sifting device. The backfilling device is attached to a tractor that moves the lateral earth moving device into a backfill spoil pile adjacent to the trench with the sifting device located above the trench. The lateral earth moving devices moves the backfill spoil material laterally into a rotating drum of the sifting device. Smaller particles of the backfill material fall through the rotating drum, which is also vibrating to backfill the trench and pad the pipe with backfill fines. The oversize debris in the backfill material continues to move laterally and falls out the end of the rotating drum to form a pile of large piece backfill material on the side of the trench opposite from the backfill spoil pile. | 11-05-2015 |
| 20160145831 | A PIPELINE PADDER - A pipeline padder comprising: a storage unit including a hopper for storing particulate material and a storage conveyor to remove particulate material from the hopper; a loading unit including a loading conveyor to load particulate material into the hopper; a discharge unit including a discharge conveyor for discharging particular material supplied by the storage conveyor; and a locomotion unit to move the storage unit. | 05-26-2016 |
