Class 175/354 - Axle rotatable with cutter

Subclass of Class 175 - Boring or penetrating the earth
Definition: Apparatus in which the rolling cutter element is provided
No. of patents: 25
Last issue date: 04/15/2008

Number	Title	Issue Date
7357200	Earth 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
7198434	Full-displacement pressure grouted pile system and method An auger bit is provided for a foundation pile system including a drilling rig adapted for mounting and rotating a grout pipe connected to the auger bit to form an auger. The auger bit includes a stem with lower and upper sections, which taper towards a transition w...	04/03/2007
5427191	Auger head assembly and method of drilling hard earth formations An auger is provided with a boring head having an arrangement for cutting relatively hard earth formations such as rock. First and second groups of drill bits are mounted to the boring head such that when the head is rotated, each bit in those groups cuts...	06/27/1995
5366031	Auger head assembly and method of drilling hard earth formations An auger is provided with a boring head having an arrangement for cutting relatively hard earth formations such as rock. First and second groups of drill bits are mounted to the boring head such that when the head is rotated, each bit in those groups cuts...	11/22/1994
5040623	Controlled true geometry rock bit with one piece body A rotary cone rock bit featuring a reproducible geometry and a one piece body is disclosed. Individual journal members, supporting rotary cutting cones, have upwardly extending structural shanks which are radially oriented and installed into downwardly di...	08/20/1991
4967854	Double cone cutting head for a drill bit The present invention is directed to a cutting head for use in a rotary drill bit in which the cutting head comprises a stem and a base integrally formed with the stem. The base has a first cutting surface defined by a frustrum of a cone or other shape an...	11/06/1990
4836614	Retainer scheme for machine bit A rotatable cutting tool of the type having a bored tool holder, a cutting bit comprising a shank depending from a head portion with first forward and second rearward retaining portions spaced by a recessed intermediate section includes a cylindrical spli...	06/06/1989
4813501	Rotary mining bit A rotary bit which includes a bit body having a tapered, externally threaded neck located at one side of the bit body. The bit body includes three, flat, lateral side faces which extend at 120° to each other and thus lie in planes which would contain sid...	03/21/1989
4553615	Rotary drilling bits A rotary drilling drag bit for drilling from the surface deep holes in sub-surface formations e.g. for oil has a body (4) with a diameter of at least 100 mm and having a bore for passage of drilling fluid to its face (3) and rotatable cutting elements (6)...	11/19/1985
4511006	Drill bit and method of use thereof The cutting edge of a bit of a rotary drill comprises an agglomerate of natural or synthetic diamond mounted at the free end of a shank freely rotatable in a socket in the body. Preferably the agglomerate and the free end of the shank are cold swaged toge...	04/16/1985
4489987	Mine tool bit with spring loaded button retainer A mine tool bit is retained in an open ended block with a cylindrical button insert transversely mounted in the shank of the bit, the insert having a cylindrical button extending radially outwardly from the shank and biased by a coil spring. The button mu...	12/25/1984
4485655	Tool holder for a mining tool bit and method for making same A tool holder for a mining tool bit is disclosed; it comprises a unitary steel body with a cylindrical shank for supporting the tool holder and a conical head for holding a tool bit. The shank includes a retaining neck constructed of a roll-formed portion...	12/04/1984
4484783	Retainer and wear sleeve for rotating mining bits A mining bit to be mounted for rotation in a bore of a support block or on a drill steel having a retention configuration opposite the working end. A bit shank is formed with an abutment flange at the insertion end and a recess adjacent said flange to rec...	11/27/1984
4462638	Mining bit with improved split ring retainer In a mining machine or the like which incorporates cutting bits having conically shaped heads and located in sockets of bit holders having respective wear sleeves located on the shanks of the bits with the bit free to rotate with the sleeve interposed bet...	07/31/1984
4371210	Freely rotatable pick bit holder on rotary driven member and method Disclosed herein is a new method and improved apparatus for digging and mining earth formations, especially coal formations. A mining or excavating machine having a movable frame with a drive means mounted on the frame is provided with a rotatable structu...	02/01/1983
4346934	Excavating bit A nonrotatable excavating bit comprising a forward working portion and hard wear resistant material attached thereto and having a rearward shank portion which is circular in cross section and is adapted to fit into a circular bore of a support block. An a...	08/31/1982
4247150	Bit arrangement for a cutting tool The rotary-shaft bit (7) inserted in a bushing (3) fixedly mounted, encloses by means of a hollow-cylindrical extension (9) an annular extension (5) of the bushing (3) and projecting in axial direction of said bushing (3), and in this manner is supported ...	01/27/1981
4247147	Retainer clip for cutter bits A retainer clip for tool bits comprises an annular strip having circumferentially spaced ends defining a gap therebetween. A pair of proximate projections and at least one remote projection project outwardly from the strip. The proximate projections are l...	01/27/1981
4201421	Mining machine bit and mounting thereof In a mining machine which incorporates cylindrical cutting bits having conically shaped heads and located in sockets of bit holders, the cutting bits are retained within the sockets by split tubular spring sleeves. The split spring sleeves are located on ...	05/06/1980
4159746	Bit of circular cross-section A cutting bit includes a bit tip and a shaft having a portion tapered toward the tip and having a reduced diameter between the tapered portion and the portion intended to be inserted in a holder. The bit tip has the shape of a body of revolution with conv...	07/03/1979
4154312	Drill bit with single cutting head A rotary drill for drilling a well in the surface of the earth the drill comprising a drill bit including an upper portion for connection to a drill string, duct means for carrying fluid to extract detritus and clear the bottom of the well and receiving m...	05/15/1979
4091882	Drilling tool A drilling tool which comprises: a cylindrical structure having a spiral groove provided on the outer surface thereof and at least one elongated rectangular through-hole provided in the lower portion thereof; a tip which is loosely fitted into said throug...	05/30/1978
4084856	Self-retaining sleeve and bit In a mining machine in which pick bits or point attack bits are held in a chain or wheel which moves next to coal or rock, a replaceable tool which is formed with a rear extension that is essentially cylindrical, that extension being split in circumferent...	04/18/1978
4065185	Point-attack bit A point-attack bit retained for rotation in a block bore, and used for removing material from a mine face. The bit has an elongate shank, and a head integral and coaxial with the shank, the head including a plurality of peripherally spaced, laterally proj...	12/27/1977
4026605	Mining tool An improvement in mining tools of the rotary and replaceable type which includes a retainer in the form of a double ball spring detent to provide axial retention, easy removability, and to permit ready rotation of the tool in a collet while preventing the...	05/31/1977

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Class 175/354 - Axle rotatable with cutter