| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 037304000 | SELF-LOADING VEHICLE | 12 |
| 20100095559 | Mobile vacuum excavation attachment for vehicle - A mobile, platform mounted excavator which may include a vacuum container and a device which will create a vacuum condition within the vacuum container. A water container, water pump, hoses and spray nozzles may be mounted on the platform and may be used for cleaning, jettering out conduits, and loosening earthen material. An articulated boom may be pivotably mounted on the platform and the articulated boom may have the added feature of having a means for coupling and supporting in stabilizing in place, auxiliary tools which are useful for accessing, servicing or repairing in ground utilities. The mobile platform mounted systems may have sensors to measure the physical quantities of the service or repair operation. A data logger, a PLC, an RFID, a camera, a GPS, a utility mapping program and wireless communication may be used for documenting, displaying and storing data related to a utility servicing operation. The above described mobile platform system may be mounted to a variety of vehicles. | 04-22-2010 |
| 20100107454 | Method for adjusting a wheel axis of rotation of a scraper and actuation mechanism therefor - A machine includes an axle assembly coupled with a frame and defining a central axis. The axle assembly includes a wheel axle disposed within a spindle housing, and a rotary actuator configured to rotate the wheel axle about the central axis by rotating the spindle housing. According to one embodiment, for example, the rotary actuator may be configured to adjust a wheel axis of rotation relative to the frame of a machine, such as a scraper, by rotating the spindle housing. | 05-06-2010 |
| 20110088289 | COLLECTION TANK - A collection tank for use in a vacuum operated earth reduction system, the collection tank comprising a closed first end, an open second end defining a tank sealing flange and a body extending between the closed first end and the open second end. An internal chamber defined by the body, the closed first end and the open second end has a door coupled to the open second end and is configured to releasably seal the open second end. An automated door closer is coupled to a center of the door, wherein the automated door closer provides a closing force at the center of the door so that the closing force is equally distributed about a periphery of the door to seal the door against the tank sealing flange. | 04-21-2011 |
| 20110258890 | DIGGING AND BACKFILL APPARATUS - A mobile digging and backfill system for removing and collecting material above a buried utility. The system comprises a mobile chassis, a collection tank mounted to the chassis, a water pump mounted to the chassis for delivering a pressurized liquid flow against the material for loosening the material at a location, a vacuum pump connected to the collection tank so that an air stream created by the vacuum pump draws the material and the fluid from the location into the collection tank, and at least one backfill reservoir mounted to the chassis for carrying backfill for placement at the location. | 10-27-2011 |
| 20130111786 | DIGGING AND BACKFILL APPARATUS - A mobile digging and backfill system for removing and collecting material above a buried utility. The system comprises a mobile chassis, a collection tank mounted to the chassis, a water pump mounted to the chassis for delivering a pressurized liquid flow against the material for loosening the material at a location, a vacuum pump connected to the collection tank so that an air stream created by the vacuum pump draws the material and the fluid from the location into the collection tank, and at least one backfill reservoir mounted to the chassis for carrying backfill for placement at the location. | 05-09-2013 |
| 20130340297 | SYSTEM AND METHOD TO EXCAVATE USING VACUUM EXCAVATOR - A system and method to excavate using a vacuum hose is disclosed. The system includes a suction wand handle, where a first end of the suction wand handle is adapted to be secured to a suction hose and a first and second grip project from opposing sides of the suction wand handle are adapted for a user to grasp. In addition, a suction wand is secured to a second end of the suction wand handle, where the suction wand includes an open end. An air line is secured to the suction wand, where a first end of the air line is adapted to be in communication with a pressurized air source and the second end terminates in at least one air nozzle at the open end of the suction wand. | 12-26-2013 |
| 20140020268 | SYSTEM AND METHOD TO EXCAVATE USING PNEUMATIC SHOCK WAVE - A system and method to excavate using a pneumatic shock wave is disclosed. The system includes a supply of pressurized fluid, a suction wand, and an air line in communication with the supply of pressurized fluid. A portion of the air line is integrated within the suction wand. The system also includes a dump valve interposed between the supply of pressurized fluid and the portion of the air line integrated within the suction wand. The dump valve is configured to rapidly discharge a pulse of the pressurized fluid out an open end of the air line to generate a shock wave at a distal end of the suction wand to fracture and dislodge soil so that the suction wand can excavate the soil. | 01-23-2014 |
| 20140182173 | DIGGING AND BACKFILL APPARATUS - A mobile digging and backfill system for removing and collecting material above a buried utility. The system comprises a mobile chassis, a collection tank mounted to the chassis, a water pump mounted to the chassis for delivering a pressurized liquid flow against the material for loosening the material at a location, a vacuum pump connected to the collection tank so that an air stream created by the vacuum pump draws the material and the fluid from the location into the collection tank, and at least one backfill reservoir mounted to the chassis for carrying backfill for placement at the location. | 07-03-2014 |
| 20150321594 | Long-Reach Vacuum Extraction - A boom, most commonly used in conjunction with a cement truck to deliver cement a great distance from the cement truck to the work site, is adapted to be used with a truck mounted vacuum extraction system. In this instance, the boom is used in a completely backwards fashion. Instead of being connected to a pump, which pumps material to a work site, the boom is connected to the vacuum extraction vacuum blower in order to bring debris at the excavation site to the debris tank of the vacuum extraction system. The boom is able to reach up, over, under, or around barriers that stand in the way. In addition, the boom can also reach through or go under existing structures to reach the excavation site. | 11-12-2015 |
| 037305000 | Having endless digger or conveyor | 3 |
| 20090025261 | Storage Car - A storage car for storing bulk material contains a car chassis which may be optionally supported on rail-bound carriages or non-rail-bound carriages. A floor conveyor belt, runs in a car longitudinal direction and is disposed in a storage container. A transfer conveyor belt is disposed at an angle extending over a front end of the car chassis. At a rear end of the floor conveyor belt with relation to a transport direction, the storage car has an excavator device for picking up and removing the bulk material onto the floor conveyor belt. The excavator device is arranged outside the storage container and contains an adjustable grab operated by actuators. The excavator device further contains a take-up conveyor belt with a low take-up end and an ejection end positioned above the floor conveyor belt. | 01-29-2009 |
| 20090288319 | Earth Moving Apparatus and Method - An excavator has a moving conveyor with vanes that penetrate the earth and section it. A cutter bar follows the vanes, cuts a section of earth loose and directs it to a lifting throat. The lifting throat, in combination with the conveyor and vanes, lifts the excavated earth into a hopper. | 11-26-2009 |
| 20120324767 | HYDRAULIC SUSPENSION HITCH SYSTEM - The present disclosure provides a hitch suspension system that reduces a transfer of energy (e.g., provides a smoother ride) between two bodies hitched together, such as between a towing vehicle and a towed vehicle/trailer. In an embodiment, the suspension system includes a hydraulic cylinder with an extendable rod in fluid communication with a fluid pump. A control valve is fluidly coupled between the hydraulic cylinder and the fluid pump and is configured to adjust an extension length of the rod. Additionally, a variable orifice that adjusts resistance to extension and retraction of the rod is fluidly coupled between the hydraulic cylinder and the control valve. A first fixed restrictive element is fluidly coupled in series with the variable orifice to dissipate energy ad the rod extends and a second fixed restrictive element is fluidly coupled in series with the variable orifice to dissipate energy as the rod retracts. | 12-27-2012 |
