Double-coated sintered hard-faced harrow disk blades

Details Double-coated sintered hard-faced harrow disk blades Double-coated sintered hard-faced harrow disk blades

2006-06-19

2009-12-15

Pezzuto, Robert E (Department: 3671)

Earth working

Rolling, rotating or orbitally moving tool

Detailed disk structure per se

Reexamination Certificate

active

07631702

ABSTRACT:
The instant invention relates to a double-coated sintered composition on a hard-faced disk blade for agricultural use as a rotary knife blade of a farm implement termed a harrow wherein the sintered hard-faced composition is applied to both the concave and convex sides of the rotary harrow disk blade to provide protection against soil abrasion and wear.

REFERENCES:
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patent: 6655882 (2003-12-01), Heinrich et al.
patent: 6908688 (2005-06-01), Majagi et al.
patent: 7194933 (2007-03-01), Zhu et al.
patent: 5501-4960 (1980-02-01), None

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