Mining or in situ disintegration of hard material – Cutter tooth or tooth head – Tooth mounted on helical head portion or head with helical...
Patent
1992-06-10
1994-03-22
Bagnell, David J.
Mining or in situ disintegration of hard material
Cutter tooth or tooth head
Tooth mounted on helical head portion or head with helical...
37189, 175373, E21B 1012, E21B 1016
Patent
active
052957357
ABSTRACT:
A device for cutting trenches in hard rock. A plurality of disc-like primary cutters are positioned on arms around a frame. The frame rotates about a central shaft and the center shaft is moved along horizontally in the direction the trench is to be cut. Between the primary cutters are reaming cutters. Each primary and each reaming cutter is provided with a plurality of spaced apart indentors secured to the external surface and each indentor has an end point and being adaptable to penetrate the rock face upon the application of working force a distance "P" and wherein the indentor end points are spaced a distance not greater then 7P apart.
REFERENCES:
patent: 254520 (1882-03-01), Warren
patent: 1590340 (1926-06-01), York
patent: 1604388 (1926-10-01), Calvin
patent: 1824329 (1931-09-01), Childs
patent: 2107626 (1938-02-01), Catland
patent: 2261501 (1941-11-01), Lore
patent: 2597669 (1952-05-01), Pilon et al.
patent: 2742439 (1956-04-01), Hallett
patent: 3064958 (1962-11-01), Osgood
patent: 3190367 (1965-06-01), Christensen
patent: 3216513 (1965-11-01), Robbins et al.
patent: 3358782 (1967-12-01), Bechem
patent: 3486794 (1969-12-01), Tabor
patent: 3612197 (1971-10-01), Motoyama
patent: 3705635 (1972-12-01), Conn
patent: 3705750 (1972-12-01), Crow
patent: 3848930 (1974-11-01), LeBegue
patent: 3858667 (1975-01-01), Goodfellow
patent: 4035024 (1977-07-01), Fink
patent: 4548442 (1985-10-01), Sugden et al.
patent: 4596295 (1986-06-01), Bengtsson
patent: 4647112 (1987-03-01), Demoulin et al.
patent: 4907664 (1990-03-01), Cobbs et al.
patent: 4953916 (1990-09-01), Brandl
patent: 5053071 (1990-07-01), Stotzer et al.
Cobbs David C.
Cobbs James H.
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