Class / Patent application number | Description | Number of patent applications / Date published |
037189000 | ROTARY DIGGER | 6 |
20080295363 | Extendable excavating screw unit equipped with hydraulic excavating auxiliary blades - An excavating screw unit equipped with a hydraulic excavating auxiliary blades has developed for an auger crane, comprising: an extension unit having auxiliary excavating blade, cylinder mounting hole, built-in fluid passages in extension unit, hydraulic cylinder, piston, and extension guiding rods; an excavation column formed a hollow center of a square-shaped to mount on top of extension unit; an extension rod having an outer square-shape to fit into the excavation column, a built-in hydraulic passages in the extension rod, at top portion of the extension rod, an inlet and outlet that is bent right angle at top portion of the hydraulic passages to connect to hydraulic tubes, the extension rod is sliding to extend or retract through the excavation column. The extended excavating auxiliary blades are maintained by the pressurized fluid to prevent retracting by digging resistance during the excavating. Thus, this mechanized excavating device is easily digging a burial hole for a utility pole and underbracing. | 12-04-2008 |
20090165338 | DRILLING TOOL - The invention relates to a drilling tool comprising: two pairs of rotary drums in axial alignment on parallel axes; motor means for driving rotation of said drums; support means; and a support structure on which said drums are mounted to rotate and serving to connect said drums to the support means; said tool being characterized in that said motor means are mounted inside the drums; and in that said support structure comprises a plate forming bearings at its bottom ends for said drum; and a mounting pad for fastening to the support means, the top edge face of the plate connecting said pad to the bearing-forming means. | 07-02-2009 |
20100037490 | Easy inter equipment - Devices by which certain types of units, such as posts, poles, pilings, anchors, caskets, burial containers, stanchions and the like may be picked up, gripped, maneuvered into a desired position and, pressed, rotated and agitated for the purpose of installing such units at nearly any angle, into earth, sand, snow or other receiving material on dry land, wet land or under water. | 02-18-2010 |
20130255112 | SOIL TRIMMING TOOL AND METHODS OF USING SAME - Described herein are tools, systems, and methods for trimming a soil face. | 10-03-2013 |
20130269220 | Drilling Bucket - A drilling bucket adapted to combine with a prime mover vehicle such as an excavator. The drilling bucket includes a floor pivotally combined with the bucket. The floor has an open position wherein collected spoils are emptied from the bucket and a closed position for retaining spoils in the bucket during operation. A release assembly is adapted to securely hold the floor in its closed position until it is actuated to release it to its open position. Some embodiments of the drilling bucket comprise two separate internal cavities. The first cavity is adapted to receive the spoils as the bucket is rotated beneath the ground by the prime mover vehicle. The second cavity is adapted to house portions of the release assembly. The second cavity may serve as a vent which allows air to pass the bucket as the bucket is being raised or lowered in a hole. | 10-17-2013 |
037190000 | Endless conveyor | 1 |
20100024256 | EXCAVATION DEVICE - The invention relates to a device for excavating and transporting material, especially earth, said device comprising an excavation appliance that can be rotated about a rotational axis (y) in a rotational direction (u), and a longitudinal conveyor ( | 02-04-2010 |