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rotary mining patenten

WO1992020897A1 Rotary mining tools Google Patents

A rotary mining tool (10) having a steel body (12) adapted to be driven axially and turned in a rotational arc relative to its axis and being provided with a hardened wear surface (22) with a cutting edge (24) adapted for cutting engagement with a work area under the axial thrust of said tool body, the wear surface (22) and cutting edge (24) being constructed and arranged with a negative rake

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EP0584255A4 Rotary mining tools Google Patents

Rotary mining tools Info Publication number EP0584255A4. Authority EP European Patent Office Prior art keywords rotary wear surface cutting tool range Prior art date 1991-05-23 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application

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US5303787A Rotary mining tools Google Patents

US5303787A Rotary mining tools Google Patents Rotary mining tools Download PDF Info Publication number US5303787A. US5303787A US08/004,682 US468293A US5303787A US 5303787 A US5303787 A US 5303787A US 468293 A US468293 A US 468293A US 5303787 A US5303787 A US 5303787A Authority US United States Prior art keywords cutting tool wear rotary tool negative Prior

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US3820848A Rotary mining tool and keeper arrangement

Rotary mining tool and keeper arrangement therefor CA190,962A CA993902A (en) 1973-04-02: 1974-01-25: Rotary mining tool and keeper arrangement therefor GB386274A GB1443373A (en)

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US Patent for Rotary mining bit Patent (Patent # D 430,578

Justia Patents Drilling, Mining, Or Soil Treatment (includes Element) US Patent for Rotary mining bit Patent (Patent # D 430,578) Rotary mining bit . Oct 8, 1998. Skip to: Description · References Cited · Patent History · Patent History. Description. FIG. 1 is a top plan view of a rotary mining bit illustrating one embodiment of the invention; FIG. 2 is a side elevational view of the rotary

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US Patent for Apparatus for rotary mining Patent (Patent

Justia Patents Cutter Element Shifted By Longitudinally Relatively Movable Parts US Patent for Apparatus for rotary mining Patent (Patent # 7,770,670) Apparatus for rotary mining . Aug 29, 2007. In various embodiments, a mining device can include a first housing portion and a second housing portion where relative movement between the first and second housing portions can extend and/or retract

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US3966257A Driving arrangement for rotary mining

A mining machine of the type wherein the rotary mining head comprises at least one rotatable support carrying a plurality of cutter drums. The support is rotatably driven through a gear box including gearing connected to the support by a plurality of drive shafts, thereby providing the mining head with substantially increased power and torque, for the employed diameter of drive shaft, while

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US Patent Application for ROTARY BORING MINING

Rotary boring mining machines are used in the underground potash mining to extract the concentrated KCl mineral in a sedimentary form. The mining machines cut the deposit materials, e.g. ore, by forcing rotary cutters into the mining face. For sake of simplicity, the mined or liberated material may be referred to as “ore,” but shall not be limited thereto. The liberated material is augured into the

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US8939516B2 Rotary cutter drum for continuous mining

U.S. Pat. No. 7,717,522 describes a conveyor segment for use in a train of conveyor segments for Highwall mining. The cutter drum is one of the most important wear items on a continuous mining...

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Rotary mining tools BRADY; WILLIAM J. Free Patents

A non-coring rotary mining tool having a bit body constructed and arranged for rock boring as in roof bolting operations, and including PCD cutter inserts of preselected size mounted at a negative ang . Login Sign up Search Expert Search; Quick Search; US Patents/Apps Other SEARCH; TOOLS & RESOURCES Title: Rotary mining tools . United States Patent 5303787 . Abstract: A non-coring rotary

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US 3,820,848 A ROTARY MINING TOOL AND KEEPER

US3820848A A rotary mining tool in the form of a bit symmetrical about the longitudinal axis and having a cylindrical shank rotatably supported in a support block. Cooperating elements of abutment means on the bit and the block support axial loads imposed on the bit. The bit is releasably retained in the block while permitted to rotate therein by a keeper arrangement on the rear end of the

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METHOD AND APPARATUS FOR ROTARY MINING

Publications Patents Members Institutions Omniscience. Applicant Larry P. Gourley Applicant Allen G. Gourley Representative Peter John et al Finnie Application number EP08797269A1 Kind A1 Document number 2201208 Shortcuts Classifications International Patent Classification E21B 10/32 E21B 7/28. METHOD AND APPARATUS FOR ROTARY MINING. 2201208 EP08797269A1 EPO Application

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ROTARY MINING TOOL RETAINING STRUCTURE

ROTARY MINING TOOL RETAINING STRUCTURE . United States Patent 3865437 . Abstract: A mining tool of the type in which a pick style bit is rotatably mounted in a bore in a support member and is retained therein by retaining means integrally formed on the bit. The retaining means advantageously takes the form of at least one radial projection on the rear end of the bit shank with the bit shank

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Rotary mining bit Brady, William J.

05/09/2000· Complete Patent Searching Database and Patent Data Analytics Services. Login Sign up Search FIG. 3 is another side elevational view of the rotary mining bit as rotated 90° clockwise from FIGS. 1 and 2 thereof, the opposite side being a mirror image; and, FIG. 4 is a perspective view of the rotary mining bit of FIG. 1. The representation of the fragmentary mounting base of the mining bit

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US Patent for Rotary cutter heads for mining machines

Justia Patents US Patent for Rotary cutter heads for mining machines Patent (Patent # 4,428,619) Rotary cutter heads for mining machines . Oct 14, 1980 Coal Industry (Patents) Limited. A rotary cutter head having generally helical loading vanes for urging cut rock or mineral towards a mining machine supporting the cutter head is provided with air flow inducing means for inducing an air flow

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Rotary cutter heads for mining machines Coal Industry

04/06/1985· United States Patent 4521058 . Abstract: A rotary cutter head for a mining machine comprises a hub assembly drivably mounted on a drive section of the mining machine and a barrel component secured around and co-axial with the hub assembly, the barrel component supporting cutter tool-carrying loading vanes. Ventilation means provided on the cutter head comprise air flow inducing

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China Patent Rotary Trommel Gold Mining Machine with

Patent Rotary Trommel Gold Mining Machine with ISO picture from Qingzhou Keda Environment Protection Machinery Co.,Ltd. view photo of Gold Plant, Alluvial Gold Plant, Gold Washing Machine.Contact China Suppliers for More Products and Price.

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Allen J. Gourley Inventions, Patents and Patent

This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO). Apparatus for rotary mining Patent number: 8381842

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ROTARY SELECTOR VALVE by Dowty Mining Equipment

PORM I COMMONWEALTH OF AUSTR1LIA PATENTS ACT 1952 APPLICATION FOR A'STANDARD PATENT I/We, DOWTl MINING EQUIPMENT LIMITED of Ashchurch, Tewkesbury,' Gloucester shire, ENGLAND. j.OGD T SUaOFFIC 3 tDEC 1985 b i~ hereby apply for the grant of a standard patent for an invention entitled ROTARY SELECTOR VALVES which is, described in the accompanying

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Joshua Lutz Inventions, Patents and Patent Applications

Patent number: 10227871 Abstract: A mining machine includes a chassis, a cutting assembly coupled to the chassis, and a spray arm coupled to the chassis and positioned proximate the cutting assembly.

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