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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 7096609 | Trencher unit The trencher unit of the present invention mounts to a standard loader attachment fitting and relies on the auxiliary hydraulic power of a loader. A powered chain drive sprocket is mounted near the upper end of the trencher unit. An idler wheel is mounted at the bot... | 08/29/2006 |
| 6948266 | Vehicular arm assembly The present invention relates to a device particularly suitable for grooming/shaping various snow terrain features used by recreational snowboarders and/or skiers and includes an adjustable arm assembly (2) attachable at one end to a suitable vehicle and bein... | 09/27/2005 |
| 6948265 | Excavation apparatus An excavating apparatus having a prime mover with a longitudinal centerline and a main frame with an engine, a ground drive system and an excavation boom operatively attached thereto wherein the excavation boom has a first end and a second end. The first end of the ... | 09/27/2005 |
| 6748678 | Snow removal apparatus and method An apparatus and a method for removing snow, including a conveyor mounted at an angle with respect to a travel direction of the apparatus. The conveyor is rotatably mounted to a frame and can be driven to throw snow laterally with respect to a travel direction of th... | 06/15/2004 |
| 6729050 | Control of excavation apparatus A method and apparatus for controlling an excavator having a frame, engine, ground supports and an excavation boom with an excavating drum. The method includes fixing the orientation of the boom relative to gravity to approximately control the shape of an excavated ... | 05/04/2004 |
| 6725579 | Excavation apparatus An excavating apparatus having a prime mover with a longitudinal centerline and a main frame with an engine, a ground drive system and an excavation boom operatively attached thereto wherein the excavation boom has a sub-frame with a first end and a second end. The ... | 04/27/2004 |
| 6658768 | Trencher The trencher includes a wheeled carriage which has a steering mechanism and a digging which operates along an upright path. The trencher includes an upright boom structure that is mounted to the carrage and a digging chain support frame that can be raised... | 12/09/2003 |
| 6418646 | Machine for digging into the lower layers of the ground The present invention relates to a machine for digging into the lower layers of the ground, wherein said machine comprises the following members: a base frame (1), a ground excavator (2) and a driving chain-type working organ (3) that is suspended from th... | 07/16/2002 |
| 6371691 | Method of introducing optical cable into a solid bed A process for introducing an optical cable, in the form of a microcable or minicable (1), in solid ground (17) with the aid of a laying unit (23). The microcable or minicable (1) used for this purpose comprises a homogeneous and pressurized-water-tight tu... | 04/16/2002 |
| 6148549 | Machine for uncovering a pipeline and operating element The invention pertains to construction earth-moving machinery for overhauling of main oil pipelines, gas pipelines, or pipelines for other purposes, namely machines for uncovering pipelines of a broad range of diameters, with trench working much lower tha... | 11/21/2000 |
| 6139225 | Method for building an underground continuous wall An underground continuous wall building method and apparatus in which a chain cutter 2 provided with excavation blades is obliquely mounted on a running carriage 1. Slanting continuous trenches G1, G2 are excavated by moving the running carriage 1 in a tr... | 10/31/2000 |
| 6094847 | Beach cleaning apparatus and method A method and apparatus for cleaning beaches or other similar sandy areas which includes a digger chain and an associated sweeper chain for capturing debris and other articles and conveying the same to a collection box or separation conveyor.... | 08/01/2000 |
| 5940995 | Apparatus for forming a snow half-pipe A shaping apparatus for the working/maintenance of a snow-boarding half-pipe. The apparatus comprises a framework with a curved portion serving to support and guide a pair of drive chains actuated to run over an endless path. To the drive chains are attac... | 08/24/1999 |
| 5930923 | Method for operation to excavate underdrain in the field ground and a device for operation to excavate underdrain A method of operation to effectively excavate an underdrain in the field ground having a long service life and ensuring that the underdrain will not be closed after a long period of time and a device for such operation. The method includes attaching a plu... | 08/03/1999 |
| 5678639 | Self-contained bioremediation unit with dual auger head assembly A self-contained bioremediation unit is adapted for quick coupling to a front-end loader, bulldozer or the like with no power connections between them. It carries its own engine and fuel tank for hydraulic driving of a dual horizontal auger head assembly ... | 10/21/1997 |
| 5421108 | High volume pipe padding machine A padding machine (10, 100) which is capable of separating materials in a spoils bank beside a trench into coarser materials, which are redeposited in the spoils bank behind the machine, and finer materials which are conveyed to the trench for padding the... | 06/06/1995 |
| 5349765 | Excavator for constructing underground continuous wall and construction method using the excavator An excavator for constructing an underground continuous wall includes an extensible guide post, an endless chain extending around a chain driving wheel provided at the upper portion of the guide post and a chain sprocket at the lower portion of the guide ... | 09/27/1994 |
| 5249379 | Mounting structure for the linear actuators of a trenching apparatus A trenching apparatus comprises a boom assembly mounted on a support base which carries a digger arm operative to form a trench alongside the support base following a trench line. The boom assembly includes an inner boom, pivotally connected to a manipula... | 10/05/1993 |
| 5245769 | Trencher for mounting on a tractor A trencher for mounting on a conventional three point hitch of a tractor. The trencher is driven from the power takeoff of the tractor and uses the hydraulic system of the tractor to operate a hydraulic cylinder for raising and lowering the boom and diggi... | 09/21/1993 |
| 5244315 | Excavator for constructing underground continuous wall and underground continuous wall construction method An excavator for constructing an underground continuous wall includes a traveling trolley movable on rails and having a sprocket in mesh with a rack extended parallelly to the rails and a hydraulic motor for driving the sprocket. The trolley further inclu... | 09/14/1993 |
| 5242246 | Surface remediator A soil surface remediation apparatus useful for decontamination of oil or chemical spill sites and toxic waste containing sites comprises a soil treatment apparatus mounted on a mobile trenching machine tractor which excavates trenches in a contaminated s... | 09/07/1993 |
| 5228222 | Digging and propulsion unit for a trenching apparatus A trenching apparatus having a digger arm operative to form a trench along a trench line includes a lower end which mounts a digging and propulsion unit having an upper and lower group of sprockets which are vertically spaced from one another and carry ch... | 07/20/1993 |
| 5228220 | Bucket chain excavator A continuous excavating and loading machine having a front mounted rotary digging element divided into sections to allow cantilevered support, digs a width greater than that of any other part of the machine so that the machine may advance on the surface i... | 07/20/1993 |
| 5228221 | Boom assembly for a trencher machine A boom assembly including a boom with laterally spaced side walls and adapted to have a digging chain and tooth assembly rotatable thereabout. A boom end idler assembly is arranged between the side walls at the free end of the boom for rotatably supportin... | 07/20/1993 |
| 5219380 | Trenching apparatus A trenching machine having a tractor unit and a trenching bar mounted for transverse sliding movement on the rear end portion of the tractor unit to any desired location within the transverse confines of the tractor unit. Spoil generated by the trenching ... | 06/15/1993 |
| 5112161 | Method for excavating and constructing monolithic continuous straight or circular structural walls and a machine for realizing such a method An equipment for excavating and constructing straight or circular continuous monolithic structural walls, comprises a motor driven vehicle provided with a support structure for substaining a beam which is orientable about a vertical and horizontal axis, a... | 05/12/1992 |
| 5104260 | Method and apparatus for tunnelling The method for boring a tunnel consists in placing an excavation tool at a point of the extrados of the tunnel and in excavating a cavity by imparting the tool an advancement movement having divergent direction with respect to the axis of the tunnel. Whil... | 04/14/1992 |
| 5074063 | Undercut trenching machine An undercut trenching machine for digging a ground trench and removing the spoil therefrom wherein the trench is advanced first at the bottom. A cutter chain is carried on a cutter bar that is mounted at its upper end for pivotal movement on a drive unit.... | 12/24/1991 |
| 5056244 | Digging chain vibratory system The digging chain support boom of a continuous chain type excavating machine is vibrated in a directional mode so as to enhance digging efficiency. Directionally compliant mounting of the boom isolates this vibration from the machine proper while allowing... | 10/15/1991 |
| 4908967 | Heavy duty rock trencher A heavy duty, chassis-mounted rock trencher for use with a conventional tractor for digging a trench, which obviates the use of outboard counterweights typically used to prevent overcentering problems. The trencher comprises an elongated digger boom selec... | 03/20/1990 |
| 4882860 | Apparatus for removing ballast from beneath railroad tracks A railroad undercutter economizes both weight and space requirements through the use of a single continuous chain which carries ballast from beneath a railroad track to a track supported conveyor with the chain entering beneath and exiting from beneath th... | 11/28/1989 |
| 4785560 | Continuous excavating apparatus An excavating apparatus for breaking and removing material away from an upright face of material is disclosed. The apparatus includes a rotary cutting head mounted between the fore ends of a pair of boom arms. The boom arms are pivotally mounted relative ... | 11/22/1988 |
| 4650370 | High-speed cable-laying apparatus An improved high-speed cable-laying apparatus of the type which digs a kerf, lays a cable at the kerf bottom, and refills the kerf with spoil in one pass. The kerf digger is a chainline loop having ground-cutting teeth spaced along its length and restrict... | 03/17/1987 |
| 4495716 | Apparatus for harvesting peat On a known peat harvesting apparatus for mounting on an agricultural tractor comprising (a) a digging chain for insertion into and movement across a bog so as to form a groove, and (b) a peat extrusion press, a roller (107) is mounted above the digging ch... | 01/29/1985 |
| 4286909 | Apparatus for unloading bulk material from a storage space An apparatus for unloading bulk material from a storage space includes an upward conveyor (14), in particular a screw conveyor. For scraping the bulk material to the inlet end (22) of the upward conveyor (14), there is a scraper conveyor (27, 28) which is... | 09/01/1981 |
| 4194311 | Grave digging apparatus A compact, efficient grave digger is disclosed including a support frame and an excavation assembly which is carried by the support frame. The excavation assembly moves in a vertical direction beneath the support frame so that a grave may be excavated in ... | 03/25/1980 |
| 4126236 | Backstacking apparatus A backstacking apparatus for stacking and reclaiming bulk particulate material comprising a particulate handling and movable positioning structure. The particulate handling structure includes a boom comprising a first and second boom member having a rake ... | 11/21/1978 |
