Wavy disc and coulter with notches

Details Wavy disc and coulter with notches Wavy disc and coulter with notches

2011-08-09

2011-08-09

Pezzuto, Robert E (Department: 3671)

Earth working

Rolling, rotating or orbitally moving tool

Detailed disk structure per se

C111S166000

Reexamination Certificate

active

07992651

ABSTRACT:
A wavy disc and coulter with notches and method of using same, the disc or coulter having plurality of waves formed in the blade by deviating the entire outer periphery of the variable wave coulter from a flat plane. A plurality of crests and a plurality of valleys are formed in the blade, wherein each of said plurality of waves comprises a first and a second crest and one valley between the first and second crests at the outer periphery thereof. A notch is disposed in each respective wave on the outer periphery of the blade and wherein at least a majority of the notch is disposed between the first one of the respective crests and the respective valley, such majority of the notch being closer to the first respective crest than to the second respective crest.

REFERENCES:
patent: 395638 (1889-01-01), Stuart
patent: 2575321 (1951-11-01), Traver
patent: 3734197 (1973-05-01), Zehrung
patent: 4538688 (1985-09-01), Szucs et al.
patent: 4545438 (1985-10-01), Giovanni
patent: 5473999 (1995-12-01), Rawson
patent: 5649602 (1997-07-01), Bruce
patent: 6186245 (2001-02-01), Skjaeveland
patent: 6554079 (2003-04-01), Bruce
patent: 6668532 (2003-12-01), Krone
patent: 7497270 (2009-03-01), Bruce
patent: 2002/0038620 (2002-04-01), Gentilhomme
patent: 2003/0201108 (2003-10-01), Linden
17-pg. catalog entitled Original Equipment Manufacturer (OEM) Catalogue, USA.

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