Excavating – Ditch filler
Patent
1977-11-11
1979-08-21
Johnson, Richard J.
Excavating
Ditch filler
172719, 172751, E02F 376
Patent
active
041648218
ABSTRACT:
By providing a plow and scraper blade assembly with a camming and securing member at one end and a pivotable, blade locking member at the other end, along with a cooperating, interfittingly engageable plow blade, a plow and scraper blade assembly is achieved wherein the plow blade is easily and quickly installable and removeable. In the preferred embodiment, a blade nesting and engaging channel is incorporated along with a plurality of stiffening ribs spaced along the channel to provide rigidity to the plow blade while enhancing the blade's rapid installation and removal qualities.
REFERENCES:
patent: 841530 (1907-01-01), Johnson
patent: 885019 (1908-04-01), Conley
patent: 1741933 (1929-12-01), Gunnison
patent: 1744139 (1930-01-01), Patton
patent: 1885231 (1932-11-01), Chong
patent: 2189745 (1940-02-01), Johnson
patent: 2254011 (1941-08-01), Kernodle
patent: 2674052 (1954-04-01), Newkirk
patent: 3202226 (1965-08-01), Carson
patent: 3477520 (1969-11-01), Gray
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