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Class 175/388 - Leading portion is a screw


Subclass of Class 175 - Boring or penetrating the earth
Definition: Apparatus in which the leading or pilot portion describes
No. of patents: 22
Last issue date: 08/24/2010


NumberTitleIssue Date
7779938Swivel for use in installing large diameter casing
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 fo...
08/24/2010
7357200Earth auger
An earth auger presents a shank having a spiral earth removing structure therearound. The structure first presents a series of spirally positioned housings with cutting teeth therein followed by a spiral cutting edge about the shank. The teeth are radially, vertical...
04/15/2008
7140456Easy hold power auger
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 f...
11/28/2006
7128174Drilling and anchoring device for diverse applications
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...
10/31/2006
7114272Winged digging tooth
A digging tooth adapted to extend forward from a leading edge of a bucket or the like. The digging tooth has a forward end, with an edge extending thereacross, and a rear end. The digging tooth further includes wing structure preferably formed integral with the digg...
10/03/2006
7104344Percussion drilling head
Device and method for drilling into geological formations. The device comprises: a rotatable body; drilling cutters arranged on an axial end surface of the rotatable body; a percussion part, which ...
09/12/2006
6994494Device for producing bored piles
Device for producing bored piles having an auger, which along at least part of the auger length is surrounded by a rotating encasing tube and during boring the encasing tube is rotated in or counter to the rotation direction of the auger and in which the auger and t...
02/07/2006
6955234Auger bit
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 r...
10/18/2005
6929078Apparatus for use in enlarging a borehole
A device for enlarging a bore includes an elongate body having a forward end, a rear end and an axis of rotation. The body of the device is adapted to be moved through the bore while being rotated about its axis. The device also includes a cutting blade which is att...
08/16/2005
6824331Screw form anchor device
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 plur...
11/30/2004
6457909Multi-purpose anchor bolt assembly
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 me...
10/01/2002
6296068Planting system
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 ...
10/02/2001
6283231Soil displacing screw auger and method for making a concrete pile with this auger
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 towar...
09/04/2001
6073710Combination drilling member
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 helica...
06/13/2000
5476149Pilot bit
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 sp...
12/19/1995
5454435Device for facilitating insertion of a beach umbrella in sand
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...
10/03/1995
4901800Cultivator tool for planting seedlings
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 modi...
02/20/1990
4623025Soil-displacement drill and method for manufacturing a pile
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 makin...
11/18/1986
4496011Tool for forming earth holes having fixed walls and method therefor
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 pr...
01/29/1985
4214617Stump cutter
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...
07/29/1980
4121668Motor-driven cultivator with counter-rotating auger shafts
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 moun...
10/24/1978
4031973Placer mining tool
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 ...
06/28/1977
 
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