Earth working – Tool – standard or connection – Subsoilers
Patent
1989-06-01
1990-02-13
Johnson, Richard J.
Earth working
Tool, standard or connection
Subsoilers
172737, 172751, 37142R, E02F 532, E02F 928, A01B 1308
Patent
active
048998303
ABSTRACT:
A cutting tooth assembly for heavy duty earth working machines has a replaceable cutting point comprised of a length of metal bar of constant transverse cross-section, which is frictionally held on a shank by a reusable holding clamp and which is repositionable on the shank. A used length of the metal bar is welded to an unused length of metal bar or to another used length of metal bar, thus permitting the entire length of the cutting point material to be utilized, thus limiting discarded scrap to a minimum and reducing operation costs.
REFERENCES:
patent: 3084 (1819-03-01), Harris
patent: 183907 (1876-10-01), Cook
patent: 819390 (1906-05-01), Warren
patent: 2148925 (1939-02-01), Bochy
patent: 2222071 (1940-11-01), Gustafson
patent: 2940192 (1960-06-01), Lattner
patent: 3550691 (1970-12-01), Davies
patent: 3750761 (1973-08-01), Smith
patent: 4576239 (1986-03-01), Launder
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