Excavating – Ditch filler
Patent
1984-12-24
1986-03-25
Burr, Edgar S.
Excavating
Ditch filler
172753, E02F 928
Patent
active
045774234
ABSTRACT:
An excavating tooth especially suited for trenching and the like wherein relatively smaller teeth are employed, the tooth incorporating a dual lock utilizing helical thread means and snap-in, detent-like means operative upon the conclusion of rotatable engagement of the tooth parts.
REFERENCES:
patent: 3624827 (1971-11-01), Liess et al.
patent: 4103442 (1978-08-01), Zepf
patent: 4238896 (1980-12-01), Lanz et al.
patent: 4335532 (1982-06-01), Hahn et al.
Burr Edgar S.
Cohen Moshe I.
ESCO Corporation
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