Did You Know...
...that it was melting ice cream that inspired the invention of the outboard motor? It was a lovely August day and Ole Evinrude was rowing his boat to his favorite island picnic spot. As he rowed, he watched his ice cream melt and wished he had a faster way to get to the island. At that moment the idea for the outboard motor was born!
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| Number | Title | Issue Date |
| 7765723 | Cutter head for an excavator machine The invention relates to a cutter head for an excavator machine including at least one cutter motor, each cutter motor comprising: a fastener plate; a mounting structure secured to the fastener plate and presenting... | 08/03/2010 |
| 7627964 | Soil spreading scraper device A soil spreading scraper device comprises a cutting blade for cutting a top layer of soil from the ground, a kicker for throwing the cut soil rearward from the cutting blade, and an impeller member rotatable within a plane of rotation extending upward and rearward f... | 12/08/2009 |
| 7367143 | Cutter and method for working the soil A cutter for working the soil includes a cutting frame, at least two cutting wheels that are supported on the cutting frame in a rotatably drivable manner about parallel axes of rotation, and an adjusting device, The adjusting device functions to adjust the center d... | 05/06/2008 |
| 7363733 | Device and method for making a trench wall in the soil The invention relates to a device for making a trench wall in the soil comprising a frame, at least one lower cutting/mixing wheel arranged at the bottom of the frame, at least one further, upper cutting/mixing wheel arranged at the top of the frame, wherein the fra... | 04/29/2008 |
| 7356947 | Method for making a trench wall in the ground, trench wall cutter, and trench wall cutting device The invention relates to a method for making a trench wall in the ground, in which at least one cutting wheel located on a trench wall cutter is given a rotary movement by a drive, the trench wall cutter is lowered into the ground and soil material below the cutting... | 04/15/2008 |
| 7351009 | Fiber optic installation structures in a paved surface, ducts, and methods therefor A fiber optic installation structure and method therefor includes a duct having an inner tube, at least one optical waveguide, and a jacket and is disposed within a channel of a paved surface. The jacket generally surrounds the inner tube. When the duct is disposed ... | 04/01/2008 |
| 7178273 | Cutting device for cutting trenches in the ground A cutting device for cutting trenches in the ground having at least one cutting wheel drivable in rotary manner and at least one first cutting element, located on the cutting wheel, for removing soil material during a rotation of the cutting wheel in one rotation di... | 02/20/2007 |
| 7114271 | Cutting tool for digging trenches, and enabling the cutter head to be changed quickly The invention relates to a cutting tool for digging vertical trenches, the tool comprising: a jib (B); a cutter structure (34; C) suspended from the jib via a cable; a plurality of cutter me... | 10/03/2006 |
| 6944977 | Drum for an excavator that can be used in particular for the production of vertical trenches in hard or very hard soils Excavator drum for the production of vertical trenches, including a cylindrical shell (22) mounted so sa to rotate about its axis of revolution and a plurality of excavating tools (28, 30) mounted on the external face of the shell. The tools include a ... | 09/20/2005 |
| 6839989 | Drilling apparatus for hard ground The invention provides apparatus for drilling trenches in the ground, the apparatus comprising a frame and a drilling assembly having a horizontal support plate connected to the bottom end of the frame, said plate supporting drilling tools disposed beneath said plat... | 01/11/2005 |
| 6839988 | Drilling apparatus for hard ground An apparatus for drilling trenches in the ground comprising a main frame having two vertical main faces, a drilling assembly comprising a support disposed at the bottom of said frame, means for causing said drilling assembly to move in vertical translation relative ... | 01/11/2005 |
| 6536140 | Soil spreading scraper An apparatus for cutting a layer of soil and spreading the cut soil over adjacent ground comprises a disc having a rotational plane sloping backward and upward from a lower portion of the apparatus at an angle between 45 and 75 degrees above a horizontal ... | 03/25/2003 |
| 6349488 | Technical field A trencher mountable on a vehicle such as a tractor, includes a substantially horizontal hollow stationary member positioned substantially perpendicular to the direction of travel of the vehicle, an extension member which is slidably receivable within the... | 02/26/2002 |
| 5924222 | Trench wall cutter The invention relates to a trench wall cutter with a cutting frame and a gear shield attached thereto. There is at least one cutting wheel positioned to turn on the opposite shield sides, and on it roller-shaped excavation tools distributed over the perip... | 07/20/1999 |
| 5873186 | Excavating machine with cleaning device An excavating machine is provided having a cleaning member for cleaning spoil out of an earth cutting device having a digging wheel assembly. The digging wheel assembly has a rim structure and a series of circumferentially spaced peripherally extended buc... | 02/23/1999 |
| 5864970 | Earth excavating apparatus An earth excavating apparatus is disclosed as operable to loosen earthen material and expel the loosened earthen material away from the apparatus. One embodiment of the apparatus includes a rotatable drum partially disposed within a housing and having a p... | 02/02/1999 |
| 5809670 | Excavating machine with grooving device An excavating machine is provided having an adjustable grooving device for forming a groove in the bottom of a trench. The excavating machine has a power unit, a supporting frame assembly operably attached to the power unit, an earth cutting device to for... | 09/22/1998 |
| 5490339 | Trenching system for earth surface use, as on paved streets, roads, highways and the like The present invention relates to a center-line trenching system for use at the earth's surface such as on a paved street, road, highway or the like. The system includes a rubber tired drive machine movable over the earth's surface for advancing a side-by-... | 02/13/1996 |
| 5423137 | Pavement cutting and excavating tool A pavement cutting and excavating tool comprising an excavation bucket and a cutting disc. The tool is mountable to a construction vehicle such as a backhoe. A disc housing is disposed in the backhoe bucket, and the cutting disc is disposed in the housing... | 06/13/1995 |
| 5381616 | Rotary rockwheel assemblies A rotary rockwheel assembly (1) is provided for cutting a narrow trench in the ground when driven along the ground by a vehicle. The assembly (1) comprising a support frame (14), ground-engaging skids (17) on the support frame (14) permitting the support ... | 01/17/1995 |
| 5375347 | Bucket wheel with supporting body A bucket wheel has a conical supporting body constructed as an inner shell rotatably mounted on the bucket wheel axis and a device which co-operates with the supporting body to accommodate the buckets on the outer rim of the bucket wheel. The supporting b... | 12/27/1994 |
| 5355597 | Device for digging a trench A device for digging a trench having a vertical face and a sloping face. The device includes a rotor configured to rotate about an axis of rotation and means for moving the device in a direction of travel substantially perpendicular to the axis of rotatio... | 10/18/1994 |
| 5333399 | Fastening of the buckets and possibly also the skim cutters on cutting wheels A digging wheel assembly includes a supporting wheel having a peripheral zone and a plurality of receiving elements affixed to the supporting wheel in the peripheral zone in a spaced, circumferential distribution. Each receiving element has a receiving po... | 08/02/1994 |
| 5315770 | Roadway trenching apparatus A self propelled apparatus for digging a shallow trench along one side of a roadway is disclosed, and which is useful as part of a roadway widening operation. The apparatus comprises a cutter drum mounted to one side of the chassis of the apparatus, and a... | 05/31/1994 |
| 5279345 | Stump cutter bracket An improved bracket clamps a cutting tool to the wheel of a stump cutting apparatus and includes a channel defined between a leading bracket half and a trailing bracket half. The trailing bracket half includes an extension extending outwardly beyond an ou... | 01/18/1994 |
| 5255454 | Apparatus for preparing trenches An apparatus for preparing and refurbishing trenches having two cutters supported on a frame. During operation of the apparatus, the cutters rotate about an axis to prepare the trench. The distance between the cutters as well as the angle of the cutters a... | 10/26/1993 |
| 5226248 | Trencher A trencher for digging a trench having a vertical face and a sloping face. The trencher includes a frame and means for moving the trencher over the surface of the ground. A rotor is connected to drive means which rotate the rotor, thereby digging the tren... | 07/13/1993 |
| 5214867 | Forest fire extinguishing apparatus Towed apparatus for excavating, pulverizing, and throwing soil to halt the spread of a forest fire. The apparatus comprises two series of rotating disks mounted to a first frame, each series driven by a hydraulic motor, for loosening the soil and pulveriz... | 06/01/1993 |
| 5214868 | Apparatus for laying an underground member An apparatus is disclosed for laying an underground member such as a service wire, tubing or the like. The apparatus includes a frame having a plurality of wheels with a rotatable cutting blade and a fixed cutting blade mounted to the frame for extending ... | 06/01/1993 |
| 5203101 | Digging chain vibratory system The digging apparatus support boom of a continuous 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 unimpa... | 04/20/1993 |
| 5199195 | Articulated toothed excavating apparatus An excavating device for scraping away the high shoulder material on the road sides. The device includes a rotating drum on which are permanently attached tooth-supports arranged in a helix. On the supports are fastened spikes and teeth, different types f... | 04/06/1993 |
| 5144760 | Trencher A trencher comprises a ground running, powered vehicle which travels in a forward direction carrying a trenching wheel driven by power to rotate in a vertical plane containing the forward direction so that cutting tips on the wheel's periphery excavate sp... | 09/08/1992 |
| 5113610 | Rotating disk type ditcher A method and apparatus in which a laser controllable ditcher drawn by a tractor to which it is attached for forming ditches, furrows and the like incorporates a cutting disk which is adjustably inclined downwardly toward the rear of its direction of trave... | 05/19/1992 |
| 5058294 | Grade control system for continuous bucket excavators This invention pertains to method and apparatus for accurate control of the cutting depth and grade for mobile excavating system excavators having a continuous bucket excavating system mounted at the leading end of a structural main frame. Such excavators... | 10/22/1991 |
| 5056242 | Underground wall construction method and apparatus Apparatus and method for constructing an impervious underground wall in which an initial excavation, filled with an excavating slurry, is made having a length L1. A milling excavator is lowered to the bottom of the initial excavation in a colla... | 10/15/1991 |
| 5035071 | Trench wall cutter In particular for the production of trenches in medium hard to hard rock, the cutting wheels of the trench wall cutter are equipped with rolling tools, whose cutting faces are parallel to the bore axis. The cleaning of the bottom of the bore and the trans... | 07/30/1991 |
| 4976051 | Rotary trench excavator A rotary trench excavator comprising a prime mover (1) pivotably connected to a movable frame (2) carrying a working member having the form of a system of drive rotors (9 to 11). To drive each such rotor (9 to 11), its interior accommodates a support fram... | 12/11/1990 |
| 4971157 | Apparatus for the removal of spoil when making trenches of great depth Apparatus including a rotary drilling cutter and a spoil removal conduit for the digging of a deep trench, characterized in that the spoil removal conduit is gradually adjustable in length during excavation and comprises: (a) a first conduit section, arra... | 11/20/1990 |
| 4969279 | Mobile earth mover having a scraper blade An earth mover comprising at least one wheeled axle; a supported frame movable by the axle, said frame further including means for pushing up soil, comprising an elongate scraper blade with a ground-facing sharp longitudinal edge being substantially right... | 11/13/1990 |
| 4958457 | Trench digging or root cutting device An apparatus for ditch digging or root pruning having a main frame on which a motor drive mechanism and a cutting wheel are supported. A secondary frame portion or undercarriage is pivotally attached to the main frame. The cutting wheel is preferably moun... | 09/25/1990 |
