Excavating – Ditch filler
Patent
1982-12-27
1984-05-08
Burr, Edgar S.
Excavating
Ditch filler
403379, E02F 928
Patent
active
044466382
ABSTRACT:
An adapter-tip retainer pin has a wedge member and a lock member joined by a first pair of walls on a resilient member. The resilient member includes a central cavity and a second pair of walls which are curved inwardly toward the cavity such that the second pair of walls collapse inwardly when the retainer pin is compressed during insertion or removal from an adapter-tip assembly.
REFERENCES:
patent: 3685178 (1972-08-01), Ratkowski
patent: 3727547 (1973-04-01), Wilde
patent: 4192089 (1980-03-01), Schwappach
Mulder James P.
Novotny Raymond J.
ABEX Corporation
Baker Jr. Thomas S.
Burr Edgar S.
Cohen Moshe I.
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