Excavating – Ditch filler
Patent
1981-02-25
1982-06-22
Eickholt, E. H.
Excavating
Ditch filler
299 91, E02F 928
Patent
active
043355323
ABSTRACT:
An excavating tooth wherein the coupling between the point and the adapter is achieved through generally helical thread means with an external lock to prevent removal by reverse rotation relative to the direction of the helical thread means.
REFERENCES:
patent: 329545 (1885-11-01), Foley
patent: 784116 (1905-03-01), McCaskey
patent: 1656511 (1928-01-01), Dahl
patent: 2145663 (1939-01-01), Reynolds
patent: 3117386 (1964-01-01), Ferwerda
patent: 3144909 (1964-08-01), Hart et al.
patent: 3690728 (1972-09-01), Krekeler
patent: 3833264 (1974-09-01), Elders
Barber, Jr. William R.
Hahn Frederick C.
Hampel David A.
Eickholt E. H.
ESCO Corporation
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