Apparatus for fine grading compacted earth

Details Apparatus for fine grading compacted earth Apparatus for fine grading compacted earth

1976-12-06

1978-06-13

Shapiro, Paul E.

Earth working

With drive means for tool or cleaner

Tool driven about axis transverse to draft line

83840, 144218, 172540, 172548, 407 48, A01B 3302, A01B 3310

Patent

active

040943623

ABSTRACT:
A device for cutting, chipping and scraping compacted earth is disclosed. The apparatus is affixed to a prime mover for rotary engagement with the earth, whereby the compacted earth is selectively loosened and/or moved. The blade design disclosed is particularly useful for close accurate work around concrete forms and the like. Other embodiments are disclosed for large area grading.

REFERENCES:
patent: B545935 (1976-01-01), Barbour, Jr.
patent: 924078 (1909-06-01), Keene
patent: 1661692 (1928-03-01), Everest
patent: 1699151 (1929-01-01), Miller et al.
patent: 1705251 (1929-03-01), Hollis
patent: 2691933 (1954-10-01), Emerson
patent: 3134412 (1964-05-01), Schmitt
patent: 3331561 (1967-07-01), Morkoski et al.
patent: 3347188 (1967-10-01), Richey
patent: 3899947 (1975-08-01), Faltim
patent: 3995699 (1976-12-01), Blucher et al.

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