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| Number | Title | Issue Date |
| 7614827 | Subsurface drip irrigation installer A vibratory plow for installing a conduit below a ground surface. A portable vibrating compactor and a series of rollers provide a “seamless” finish to the ground. ... | 11/10/2009 |
| 7357744 | Hydro-mechanical continuously variable transmission The invention comprises a hydro-mechanical continuously variable transmission (HMCVT) that uses a planetary gear system to provide a combination of hydraulic and mechanical power for a vehicle or stationary equipment. The invention further comprises various ancillar... | 04/15/2008 |
| 7144202 | Silt fence installation apparatus A machine to install the lower edge of silt fence fabric in a seam in the soil includes a frame with a plow member attached. The frame can be mounted to the three point hitch of a tractor so that the machine can be raised, lowered, and tilted while being supported b... | 12/05/2006 |
| 7044684 | Plow blade with water passageway A plow blade having a fluid passageway and points of fluid ejection is produced with basic manufacturing processes allowing for efficient production. The blade construction has a multiple component assembly for providing the ability to rebuild a blade and replacing ... | 05/16/2006 |
| 7044689 | Silt fence installation apparatus A machine to install the lower edge of silt fence fabric in a seam in the soil includes a frame with a plow member attached. The frame can be mounted to the three point hitch of a tractor so that the machine can be raised, lowered, and tilted while being supported b... | 05/16/2006 |
| 6474909 | Fluid assisted ground wedging device A fluid assisted wedging and compacting device for the installation of underground cable that includes a blade with a cutting edge, two cutting faces a toe, a shoe, a cable feed tube, a pair of deflectors, a pair of grooves and a plurality of high pressur... | 11/05/2002 |
| 6397500 | Trenching plow with reciprocating action A trenching plow adapted for attachment to a vehicle, the plow having an elongated shank having a blade formed along a lower portion of a leading edge of the shank, the blade having a first soil cutting surface along the leading edge, a first cutting arm ... | 06/04/2002 |
| 6257962 | Apparatus and methods for forming hollow-ground knife blades Hollow-ground surfaces are simultaneously formed along opposite sides of a knife blade blank by passing the knife blade blank between a pair of grinding wheels. The grinding wheels carry grinding belts about idler pulleys. The idler pulleys are adjustable... | 07/10/2001 |
| 6244355 | Isolation mount An isolation mount having a first mounting surface arranged on a vehicle. The first surface has substantially vertical first mounting lugs arranged at a lower end of the first surface, and a first fastening device for holding at least one pair of resilien... | 06/12/2001 |
| 6234718 | Vibratory apparatus A vibratory apparatus, useful with a vibrated plow, cable layer or the like, includes a housing and a shaft mounted to the housing for rotation about a shaft axis. Counterrevolving first and second eccentric weights are supported by the shaft for rotation... | 05/22/2001 |
| 6186242 | Depth gauge for a vibratory plow A depth gauge (30) is connected to a vibratory plow (10) for indicating the depth of a blade (13). The depth gauge (30) has a rod (31) pivotally connected to the housing (11). The rod (31) has a first end (31a), a second intermediate ground following port... | 02/13/2001 |
| 6142711 | Vibrator having a rotating and oscillating housing A vibrator for vibrating an object. The vibrator is provided with a rotary housing mounted on a frame for rotation about an axis. Multiple rotary eccentric masses are mounted at equally spaced intervals in this housing about the housing axis and they are ... | 11/07/2000 |
| 6126363 | Vibratory plow with improved blade configuration A vibratory plow used for laying pipe or electrical cable in the ground is provided with an improved V-shaped oscillating blade. The V-shaped blade has two blade arms that are not connected at their lower ends, so that each blade is free to move in an osc... | 10/03/2000 |
| 5765966 | Sub-surface trenching and backfill apparatus A soil sub-surface trenching apparatus adapted to deliver a ribbon deposit of an aggregate material to form a downwardly extending curtain thereof below the soil surface level and thereby provide a soil conditioning method for accomplishing a wide range o... | 06/16/1998 |
| 5482121 | Vibratory cable plow assembly A vibratory cable plow assembly including a frame assembly for connecting a plow blade to a frame of a prime mover. The frame assembly supports a vibrating mechanism or shaker that is adapted to impart vibratory movements to the plow blade. The frame asse... | 01/09/1996 |
| 5433277 | Soil implement A slitting or tenching tool is described comprising a blade adapted to be lowered vertically into the soil and pulled therethrough so as to define a slit or trench having a depth determined by the mean depth to which the blade penetrates the soil, in whic... | 07/18/1995 |
| 5392541 | Vibratory plow assembly A vibratory plow assembly 201 incorporates a vertical ground parting blade 202 with a front cutting edge 203 and a ripper tooth 208. The blade 202 is bifurcated rearwardly of the cutting edge 203, the blade 202 being formed by two spaced-apart side plates... | 02/28/1995 |
| 5380123 | Method for building a road bed and the use of the same A method for building a road bed by providing a plurality of vaulted structures located at a road bed site. A first layer of concrete is applied on the structures for reinforcing the structures. The structures can be comprised of a profiled steel plate or... | 01/10/1995 |
| 5281054 | Vibratory plow assembly A vibratory plow assembly 201 incorporates a vertical ground parting blade 202 with a front cutting edge 203 and a ripper tooth 208. The blade 202 is bifurcated rearwardly of the cutting edge 203, the blade 202 being formed by two spaced-apart side plates... | 01/25/1994 |
| 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 |
| 5067853 | Oscillating plow apparatus An apparatus wherein a platform mounts a drive motor that directs rotary motion to an eccentrically arranged crank pin to effect oscillating motion to a blade member directed downwardly relative to the platform. The blade includes a foot member that is fo... | 11/26/1991 |
| 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 |
| 5039252 | Cable feed assembly for use with a vibratory plow A cable feed subassembly for use with a vibratory plow in placing a cable or tube in the earth. The plow includes a plow blade and an associated vibratory unit. A cable guide assembly is mounted on the rear side of the plow blade and an incremental cable ... | 08/13/1991 |
| 4909333 | Vibratory plow A vibratory plow assembly which provides improved vibratory plowing through the mounting of the plow blade and maneuverability of the assembly. The assembly includes a forward frame member, a rearward frame member, and spaced apart link members pivotally ... | 03/20/1990 |
| 4909332 | Vibratory plow A vibratory plow assembly for improving the mounting of the plow blade and optimally locating the gage wheels. The assembly includes a plow blade and gage wheel holder that is pivotally mounted to a vibrator frame. The holder includes hollow bearing membe... | 03/20/1990 |
| 4904116 | Apparatus for making tunnels in the ground and for laying supply lines An apparatus for making tunnels and for laying supply lines in the ground comprises an earth displacing machine which is guided by a sword projecting out of the ground to allow the attachment of a power drive engaging the free end of the sword, and makes ... | 02/27/1990 |
| 4871027 | Multiple-edge sod cutter for vibratory plow A vibratory plow including a cutter assembly which slices the ground covering and breaks the sod ahead of the cable-laying plow blade. The plow assembly includes a blade holder that is pivotally mounted to a vibrator frame. A mounting member attaches the ... | 10/03/1989 |
| 4867606 | Tamper attachment for vibratory plow and method of laying line and cable A tamper attachment for a vibratory plow vehicle of the type wherein a vibrator imparts vibrations to a plow which is used to plow a narrow, relatively shallow furrow to receive a line or cable. The tamper attachment comprises attachment means for attachi... | 09/19/1989 |
| 4867607 | Linkage apparatus having a mechanism for dampening vibrations Linkage apparatus for connecting a use device, preferably a vibrating cable plow, to a ground-engaging vehicle. The linkage apparatus comprises a first arm member having a first mechanism for connecting the first end to the vehicle, a second arm member ha... | 09/19/1989 |
| 4834581 | Root cutting cable laying plow A root cutting cable laying plow adapted for attachment to a tractor is provided. The plow includes a shank having a longitudinal blade formed in the leading edge of a lower portion of the shank and having a flat transverse cutting surface above the blade... | 05/30/1989 |
| 4790687 | Tamper attachment for vibratory plow and method of laying line and cable A tamper attachment for a vibrator plow vehicle of the type wherein a vibrator imparts vibrations to a plow which is used to plow a narrow, relatively shallow furrow to receive a line or cable. The tamper attachment comprises attachment means for attachin... | 12/13/1988 |
| 4685832 | Underground pipe and cable laying machine An apparatus for burying filiform objects such as ducts, conduits, cables and the like into the ground. The apparatus has the general appearance of a gasoline-powered manually-driven soil tiller with a V-shaped blade extending into the ground to a predete... | 08/11/1987 |
| 4682912 | Pipe laying apparatus For laying and joining successive sections of pipe, a vehicle is movable over a course along which the pipe is to be laid. Carried on the vehicle is a crane, the outer end portion of which is movable both vertically and horizontally relative to the course... | 07/28/1987 |
| 4652176 | Vibratory plow with blade having regressive longitudinal axis A vibratory plow blade having a tapered leading edge, a trailing edge, and a tapered bottom edge wherein the plow blade is configured such that its longitudinal axis regresses or is arcuately angled away from the towing vehicle. The tapered leading edge o... | 03/24/1987 |
| 4498813 | Underground cable installing apparatus and method utilizing a fluid jet assisted, vibrating blade arrangement An underground cable installing apparatus is disclosed herein along with its method of operation. The apparatus utilizes a power driven land vehicle and an elongated cable laying plow handle supported by and for movement with the vehicle in a way which pl... | 02/12/1985 |
| 4463509 | Vibratory plow assembly A vibratory plow assembly which eliminates the need for elastic torque cushioning elements. The plow assembly includes a vertically extending support frame and a vertically extending shaker frame having an elongated plow blade attached thereto with an osc... | 08/07/1984 |
| 4260290 | Cable plow assembly The disclosed vibratory cable plow has a generally horizontal boom supported on transverse horizontal and vertical pivots and a trailer supported on the boom by a vertical pivot. A plow blade is supported on a vibration isolating frame beneath the trailer... | 04/07/1981 |
| 4200410 | Cable laying device A device is disclosed for excavating a trench in frozen or unfrozen soil and introducing cable within the trench thereby excavated. An integral vibrating or reciprocally moving blade breaks frozen soil and cuts roots, and trench depth, as well as blade an... | 04/29/1980 |
| 4179227 | Dynamic plow assembly and method of operating same A plow assembly and method useful for burying an elongated flexible member at a predetermined depth beneath ground level. The arrangement utilizes a frame assembly adapted to be pulled by a tractor type vehicle and which frame assembly has a vertically-ex... | 12/18/1979 |
| 4164982 | Vibratory cable plow assembly The disclosed cable plow assembly is adapted to reduce the power requirements of cable and line laying plows. The plow blade is suspended on the rear of a resilient frame assembly having two pair of vertically spaced links. Each link is pivotally supporte... | 08/21/1979 |
