Excavating – Peat excavators
Patent
1974-08-23
1976-04-13
Crowder, Clifford D.
Excavating
Peat excavators
2420517, 37 54, 37 56, 37183A, 734252, 175253, 292246, 294 70, G01N 112, E02F 344
Patent
active
039494977
ABSTRACT:
Releasable latching apparatus for a benthic dredge having closures latchable in open position, the apparatus comprising vertically displaceable latch pins coupled to a plunger which is vertically displaceable by a weighted messenger.
REFERENCES:
patent: 368729 (1887-08-01), Morris
patent: 1181311 (1916-05-01), Huber et al.
patent: 2018191 (1935-10-01), Schmidt
patent: 3509772 (1970-05-01), Blair
patent: 3572129 (1971-03-01), Walthier et al.
patent: 3633965 (1972-01-01), Norman et al.
patent: 3762078 (1973-10-01), Wetherbee
Crowder Clifford D.
Trippensee Corporation
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