Leading Portion Is A Screw Patents (Class 175/388)
  • Patent number: 10364604
    Abstract: A device is provided for the movement and mutual assembly of segments of an excavation battery. The device includes four parts: an upper joint, a lower joint, a flexible element and a stop element. The upper joint is connectable to a driving tube. The lower joint is connectable to one segment of the excavation battery. The flexible element connects the upper joint to the lower joint so that the lower joint slides along the flexible element. The stop element limits the sliding of the lower joint away from the upper joint, and includes a ballast with a diameter that is less than a diameter of an inner duct in one segment of the excavation battery.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: July 30, 2019
    Assignee: SOILMEC S.P.A
    Inventors: Ezio Biserna, Danilo Fusaroli, Francesco Mantovani
  • Patent number: 10337253
    Abstract: A drill head for a drilling device for making drill holes in insufficiently stable foundation by displacement of soil material has a base plate, with which the drill pipe end is detachably connected and is closable, on which base plate at least one drill head plate, oriented substantially perpendicular thereto, is placeable. Insertable in the lateral flanks is at least one curved plate, which is provided with first holding means, which are held in second holding means, which are attached on the lateral flanks of the drill head plate. The curved plate is designed in a way and is insertable in the flanks of the drill head plate such that its surfaces are effective as screw faces during the drilling process. The efficiency of the drilling can thereby be improved.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: July 2, 2019
    Inventor: Daniel Leuenberger
  • Patent number: 10161096
    Abstract: The disclosure relates to a device for reinforcing a ground on which is disposed a loading structure. Threaded inclusions are disposed vertically within the ground and reinforce said ground. The core diameter of threaded inclusions is between 250 mm and 450 mm and the external diameter is between 350 mm and 600 mm. A load transmitting layer is interposed between the ground and the loading structure disposed thereon, so as to transmit and distribute the load from the loading structure to both the ground and the plurality of inclusions. A ratio between a distance between axes of two adjacent inclusions and the internal diameter of said adjacent inclusions is between 4 and 14, and the inclusions are made from a material having a specified 28-day compressive strength between 5 MPa and 35 MPa.
    Type: Grant
    Filed: May 31, 2016
    Date of Patent: December 25, 2018
    Inventors: Frederic Masse, Benoit Quandalle, Brandon Buschmeier, Kyle Shatzer
  • Patent number: 10077607
    Abstract: A drill head borer is configured to be attached to a rotary auger including a helical blade. The borer includes at least one wing extending radially away from a body centered about a longitudinal axis. An aligning ledge is formed in the drill head borer configured to self-align the drill head borer with the helical blade without the need for substantial measurement by a user. The borer further includes a plurality of teeth arranged in a convex configuration, along the wing when viewed from above. When viewed from the side, the teeth are angled at a lifting pitch angle.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: September 18, 2018
    Assignee: Belltec Industries, Inc.
    Inventors: Robert L. Frost, Louis S. Miliman, Alan L. Jones
  • Publication number: 20140216825
    Abstract: An auger bit includes an elongated shaft, a cutting bit, a feed screw, and a locking fastener. The shaft includes a flute extending in a helical manner with respect to a longitudinal axis along at least a portion of the shaft. The shaft further includes a first slot and a second slot. The first slot extends parallel to the longitudinal axis proximate the first end and is aligned with the axis. The cutting bit is removably received in the second slot and includes a first edge. The feed screw includes a shank and a threaded portion. The shank is removably received in the first slot. The feed screw engages the cutting bit to secure the cutting bit relative to the shaft. The locking fastener is coupled to the shaft and engages the shank of the feed screw to secure the feed screw relative to the shaft.
    Type: Application
    Filed: January 31, 2014
    Publication date: August 7, 2014
    Inventors: Roger D. Neitzell, Benton Russell
  • Patent number: 8646547
    Abstract: A spade-type drilling tool designed for drilling holes within an ice surface for the purposes of ice fishing, comprising a spade end which is welded onto the end of a shaft. The length of the shaft is sufficient to provide an ergonomically comfortable posture for a user while drilling the fishing hole. A first side of the lower end of the spade comprises a straight knife edge, while a second opposite side is provided with a plurality of sharp cutting teeth. A sharp pointed bit, protruding beyond the lower line of the knife edge and the teeth, is located on a vertical centerline along the faces of the spade. The sharp point of the bit is intended to provide a means for punching a starter hole within the ice, and subsequently, to function as a pilot during the progressing drilling operation. The tool is provided with a circular shield, designed to slip over and clamp onto the shaft, thereby preventing water and ice particles from splashing back up onto the user.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: February 11, 2014
    Inventors: John E. Johnson, Eric E. Crowe
  • Publication number: 20130294843
    Abstract: The helical drill bit defines a helical end section of a helical structure formed at its periphery by an auger of an excavation assembly, and it is associated or associate with a support portion of the auger. Such a support portion defines a proximal section of the helical structure, which has an extension substantially centred around a longitudinal axis (X-X). The helical drill bit is adapted to rotate about the longitudinal axis (X-X) together with the support portion so as to drill a hole in the ground. The helical end section extends around an extremity axis (Y-Y; ?-?) that is not aligned relative to the longitudinal axis (X-X).
    Type: Application
    Filed: May 2, 2013
    Publication date: November 7, 2013
    Applicant: SOILMEC S.p.A.
    Inventors: Ezio BISERNA, Daniele VANNI
  • Publication number: 20130213717
    Abstract: A wet drill bit assembly and a dry drill bit assembly for cutting a borehole in the earth strata of a mine wherein the borehole has a reduced dimension interior region and an enlarged dimension exterior region. The wet drill bit assembly includes an axial forward spade-style cutting member, which has a spade hard cutting member with a first transverse cutting dimension, and an axially spaced apart axial rearward reamer cutting member, which has a hard insert with a second transverse cutting dimension, which is greater than the first transverse cutting dimension. The dry drill bit assembly includes an axial forward cutting member, which has an axial forward hard cutting insert with a first transverse cutting dimension, and an axially spaced apart axial rearward hard cutting insert that has a second transverse cutting dimension which is greater than the first transverse cutting dimension. An elongate sleeve is adapted to receive cutting debris from the operation of the axial forward hard cutting insert.
    Type: Application
    Filed: January 24, 2013
    Publication date: August 22, 2013
    Applicant: Kennametal Inc.
    Inventor: Kennametal Inc.
  • Patent number: 7887263
    Abstract: A cable guide mechanism configured to be releasably attached to a shaft, which includes a body portion, an indent or groove and a protrusion, characterised in that said indent or groove is located on the opposite side of the body portion to the protrusion, and is dimensioned and configured to releasably retain an inside edge of a first distal end of a loop which is attached to a terminal end of a cable; the protrusion is tapered with its widest section directly opposite the indent or groove; the linear distance between the bottom of the indent or groove and the widest section of the protrusion is sufficiently close to the inside length of the loop that in use the first distal end of the loop cannot climb out of the indent or groove; said shaft is configured to freely rotate co-axially inside the cable guide mechanism.
    Type: Grant
    Filed: February 29, 2008
    Date of Patent: February 15, 2011
    Inventor: Miles Edward Moffat
  • Patent number: 7779938
    Abstract: The invention includes a pair of swivels for use with an auger boring machine. One of the swivels allows for rotation of a first auger of a first auger assembly connected to the trailing end of a pilot tube without rotating the pilot tube. The other swivel allows for rotation of a larger diameter second auger connected to the trailing end of the first auger assembly without rotating the first auger. Each of the swivels includes a thrust bearing.
    Type: Grant
    Filed: March 7, 2007
    Date of Patent: August 24, 2010
    Inventor: James S. Barbera
  • Patent number: 7140456
    Abstract: A cutting auger has a main auger blade and a front subsidiary coaxial blade each having a drive core and a helical auger flight carried on the drive core for rotation about a longitudinal axis of the drive core with a cutting edge at an axial end face of the auger flight, such that when rotated the cutting edge cuts a hole equal in diameter to the helical flight and the helical flight carries the cut material away from the cutting edge. The second auger blade having a smaller diameter than the first, is shorter than the first and is arranged with the helical turns thereof in opposed angular direction. A planetary drive system is arranged to rotate the first and second cutting augers in opposed direction with the first driven at a slower angular velocity than the second so as to balance the torque.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: November 28, 2006
    Inventor: Brian Maki
  • Patent number: 7128174
    Abstract: The present invention describes a drilling and anchoring device for diverse application, which possess as a basic principle to provide the formation of a specific drilling and anchoring device of the most diverse products to soils, fully based on a lower penetration device in order to fully optimize both processes by directly eliminating excavations and high efforts, having as a basis a drilling and anchoring device incorporating a proprietary structure of high durability and strength possessing a properly integrated and attached main supporting body, a lower penetration device, a central rotating device and, as an option, an upper fitting device, so as to form a structure whose shape and internal and external arrangement directly adapts itself to the most diverse types of soils and products in general.
    Type: Grant
    Filed: December 8, 2003
    Date of Patent: October 31, 2006
    Inventor: Ivan Carta
  • Patent number: 6955234
    Abstract: An auger has an outer blade and a center bit. The outer blade includes an outer ring and an inner hub, and the center bit inserts into the inner hub. The outer ring has an array of circumferentially-spaced teeth, and the inner hub is inwardly spaced from the outer ring by an array of inner spokes. Each spoke in the array of inner spokes also has a bladed portion for removing material. The center bit has a drill bit-shaped tip, a toothed cone, and a shaft all concentrically aligned with the outer ring and with the inner hub. The toothed cone includes at least one blade outwardly protruding from the toothed cone, and the shaft inserts into the inner hub to center the center bit with the outer ring and with the inner hub. The drill bit-shaped tip centers the auger bit, and the array of circumferentially-spaced teeth moves soil and cuts roots. The at least one blade outwardly protruding from the toothed cone also moves soil and cuts roots.
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: October 18, 2005
    Assignee: BellSouth Intellectual Property Corporation
    Inventor: Donald Mathews
  • Patent number: 6824331
    Abstract: A screw form anchor device (10) intended for screwed penetration into a host material. The anchor device (10) includes a body (11) having a manipulating end (12) and a distal end (13). A screw thread (22) is formed by a plurality of tapering angular helix thread forms (22a) which extend from the distal end. Each angular helix thread form (22a) has an outward facing surface (24) and, relative to the distal end, a downward facing surface (25). In the preferred form an emergent helix thread (26) commences from a point distant from the distal end (13). This emergent helix thread (26) extends toward the manipulating end (12) of the body (11).
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: November 30, 2004
    Inventor: Clifford Alan Parker
  • Publication number: 20040173380
    Abstract: A hollow auger head assembly for penetrating geological formations that utilizes drill bit assemblies to which both blades and finger bits are attached. The method of securing the individual drill bit assemblies to the auger head reduces incidents of the drill bit assembly becoming detached from the auger head during drilling operations. Additionally, a rust-resistant attachment mechanism is used attach the drill bit assemblies to the auger head, which makes the drill bit assemblies easier to remove and replace. The configuration and arrangement of the bits improves cutting efficiency, increases wear life and reduces the likelihood of the bits breaking during operation.
    Type: Application
    Filed: March 12, 2004
    Publication date: September 9, 2004
    Applicant: Good Earth Tools, Inc.
    Inventors: Raymond W. Burns, Anthony James Regna
  • Publication number: 20020153173
    Abstract: A percussion bores for forming borer in a stone material and including a chisel stem (2) having a prismatic cross-section and provided with a chiseling head (3) and at least one radial opening (4), a twist drill (6) extending through the cylindrical through-bore (3) of the chisel stem and projecting beyond the chiseling head (7), a drilling head (10) with cutting elements (9) provided at the projecting end of the twist drill and a shank (12) provided at another end of the twist drill, and a stop (13) provided between the shank (12) and the chisel stem (2), with a drill stem being offset radially inwardly with respect to an outer diameter of the shank in the region of the stop.
    Type: Application
    Filed: April 11, 2002
    Publication date: October 24, 2002
    Inventors: Erich Wisser, Marcel John, Bernhard Sander, Hanspeter Schad, Cord-Henrik Surberg, Charles Coffin, Joachim Vedder, Reinhard Lins
  • Patent number: 6457909
    Abstract: A multi-purpose anchor bolt, which performs two principle functions: (1) it acts as an active reinforcement for the ground when it is installed and tensioned, and (2) it is used to excavate and advance the face in steps. The invention also includes the method of the multi-purpose anchor bolt's use. This invention is a hybrid of traditional and mechanized excavation techniques.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: October 1, 2002
    Inventors: Shulin Xu, Ashraf Mahtab
  • Patent number: 6296068
    Abstract: A planting system with the special planter to dig uniform holes, puck type plant feeders to go in the holes and plastic dual planting trays. These can be used independently or in any combination. Features include a protective shroud, pulverizing the dirt by circulating it in an enclosed area, a tapered spiral ramp to help pile the dirt and pulverize it, a root cutter, ground clearing with spinning shroud, a friction plate to power ground clearing, pointed feet at the bottom of the shroud to stop the spinning when excavation starts, a rock sifter including a ramped face on the internal louvers, a rock catcher ring with flexible fingers, piling the dirt around the perimeter, hole depth measurement rings on the shaft, a slidable ring to select gap between the bottom of the shroud and the ground and an optional locking stop ring to guarantee uniform hole depth.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: October 2, 2001
    Inventor: W. Richard Frederick
  • Patent number: 6283231
    Abstract: Soil-displacing screw auger which contains an auger tube (1); a double displacement body (2) equipped with a hollow shaft (8) fixed to the auger tube (1) and containing an upper part (6) which constitutes a closed screw the radius of which increases towards its lower extremity and a lower part (7) which constitutes a closed screw the radius of which decreases towards its lower extremity, preferably with the same pitch as the upper part (6); a lower tube the diameter of which is smaller than twice the largest radius (R2) of the displacement body and which is situated between the lower part (7) of the displacement body (2) and the lower extremity of the auger; a screw blade (4) welded onto the outer casing of the lower tube, which rotates in the same sense as the lower part (7) of the displacement body (2) and an auger tip (5) connected to the lower extremity of the lower tube, with the special characteristic that the lower tube of the auger is an intermediate tube (3) with an outer diameter (D3) which is small
    Type: Grant
    Filed: December 3, 1997
    Date of Patent: September 4, 2001
    Inventor: Gaspar Jozef Coelus
  • Patent number: 6073710
    Abstract: A combination drilling member includes an axially elongated drill, such as used for drilling rock, having an axially extending shaft (2) with a first end leading in the drilling direction containing a cutting bit (3). The shaft (2) has at least one helical drilled material removal groove (4) and an auxiliary element encircling and detachably connected to the shaft (2) intermediate the ends thereof. The auxiliary element (6) has at least one elastic plastic part (9) extending around the shaft and containing a through hole (10) for the shaft where the plastic part is secured to the shaft by at least one of frictional and positive locking engagement against inadvertent axial displacement and held against relative rotation to torques of up to 40 Nm.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: June 13, 2000
    Assignee: Hilti Aktiengesellschaft
    Inventors: Franz Popp, Heinz Bisping, Thomas Belz
  • Patent number: 5476149
    Abstract: A pilot bit is provided with an elongated body member and three blades that extend radially from and spirally along the body member. As compared to conventional two bladed pilot bits, the outer edge and leading tip of the third blade removes additional spoil which increases penetration rates. The pilot bit also includes an adapter which is inserted in an auger shaft and releasably secured thereto with a fastener, such as a bolt. The adapter includes a surface that cooperates with a key that is secured to the auger shaft to take the torque load off the bolt. In this manner, deformation of the auger shaft bolt holes and bolt fatigue is minimized.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: December 19, 1995
    Assignee: Pengo Corporation
    Inventor: Brian Rickards
  • Patent number: 5454435
    Abstract: A device for facilitating the insertion of a beach umbrella in the sand includes a shaft formed as a helix about an axis of rotation with a handle attached to one end thereof. The curvature of the helix defines a major diameter and the shaft of the device is at least a quarter the size of the major diameter. The shaft is manually inserted in the sand and then withdrawn thereby forming a hole for the insertion of the beach umbrella support shaft.
    Type: Grant
    Filed: May 25, 1994
    Date of Patent: October 3, 1995
    Inventor: Lisa Reinhardt
  • Patent number: 4901800
    Abstract: The tool includes a shaft adapted at its upper end to receive a power source. Flighting extends partially along the shaft above a pair of radially directed elongate blades which project outwardly from the shaft a distance beyond the flighting edge. A modified form dispenses with the flighting.
    Type: Grant
    Filed: July 11, 1988
    Date of Patent: February 20, 1990
    Inventor: Alvin K. Wilson
  • Patent number: 4623025
    Abstract: To the drill pipe connects a head comprising a cylinder-shaped portion and a cone-shaped point. Three spiral ribs are regularly distributed over the head. Each rib has a downwardly-extending rib portion standing on the point and having an outer side making an angle between 0.degree. and 5.degree. with the drill axis and an inner side making with the outer side of the point an angle which is smaller than 90.degree. increased by half the apex of the point, and has a outwardly-extending rib portion standing on the cylinder-shaped head portion and having a top side making an angle between 85.degree. and 95.degree. with the outer side of this head portion. The lowermost edge of the rib portion standing on the point merges into the outermost edge of the other rib portion. The apex of the point lies between 85.degree. and 95.degree..
    Type: Grant
    Filed: October 11, 1984
    Date of Patent: November 18, 1986
    Assignee: Fundex
    Inventor: Alexander J. Verstraeten
  • Patent number: 4496011
    Abstract: A tool comprises two coaxial casings, a leading and a trailing ones, connected by a tubular element provided with ports for discharging a fixing material into a hole. The leading casing comprises a cylindrical portion, and frontal and rear conical tips provided with spiral tapered surfaces intended for consolidating soil. The trailing casing has a cylindrical portion of a greater diameter than that of the cylindrical portion of the leading casing. In the trailing casing there is provided an axial duct communicating with a cavity of the coupling element for supplying a fixing material. A method of forming holes having fixed walls includes formation of a pilot hole using the leading casing, and subsequent formation of a hole of a predetermined diameter using the trailing casing in the advancing sinking of a pilot hole.
    Type: Grant
    Filed: July 26, 1982
    Date of Patent: January 29, 1985
    Assignee: Dnepropetrovsky Inzhenerno-Stroitelny Institut
    Inventors: Boris M. Mazo, Valentin I. Feklin
  • Patent number: 4214617
    Abstract: A stump cutter is disclosed having a rotatable shank upon which a transverse support bar is attached. Tool holders are mounted in a distributed relation on the support bar and replaceable cutter bits are mounted in the tool holders. Mounted on the forward end of either the shank or support bar is a pilot member that holds the stump cutter engaged to the stump during cutting operations.
    Type: Grant
    Filed: June 19, 1978
    Date of Patent: July 29, 1980
    Assignee: Kennametal Inc.
    Inventor: Robert J. McKenry
  • Patent number: 4121668
    Abstract: This cultivator includes a base, which is carried by a pair of ground wheels, and a motor mounted to the base above a pair of auger assemblies. The motor shaft extends rearwardly of the base and the auger assemblies include elongate shafts rotatively mounted within sleeves attached to the base. The motor shaft and the auger shafts are connected at their rear ends by a chain and sprocket drive assembly which provides counter-rotational motion in the two auger shafts. The forward ends of the auger shafts are each provided with a screw and spaced radial tines of progressively increasing length.
    Type: Grant
    Filed: June 29, 1976
    Date of Patent: October 24, 1978
    Assignee: Detroit Tool & Engineering Co.
    Inventor: Earl L. Miner
  • Patent number: 4031973
    Abstract: This invention relates to placer mining and more particularly to a novel bit adapted for use in stream beds, dependably to break up and deliver to and through a sluice box a quantity of divided, water-borne gravel, sand, clay and ore for the conventional analysis and segregation of the precious metal or metals contained therein. There have been prior proposals of a generally similar nature but the material dislodging bits employed have been so poorly designed that they have been severely limited in capacity or have quickly become clogged by gravel, clay, etc. so that the ore digging operation has had to be frequently interrupted for the elimination of obstructing material. The present invention substantially eliminates this shortcoming.
    Type: Grant
    Filed: November 10, 1975
    Date of Patent: June 28, 1977
    Inventors: Robert G. Claye, David S. Wilson