Agricultural disc harrow and method

Earth working – Diverse tools – Diverse rolling

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C172S139000, C172S199000, C172S178000, C172S200000, C172S582000, C172S147000, C172S604000

Reexamination Certificate

active

07048069

ABSTRACT:
An agricultural implement consisting primarily of a towed frame supported on retractable wheels, the frame having a plurality of independently adjustable spindles for setting height and angle of attack for various size rotatable discs. Each disc is staggered to reduce resistance and clogging. Each group of discs further includes descending diameter discs at each end with the angle of attack increasing with each decrease in diameter while spacing between the discs decreases as the diameters are reduced. The implement further including harrow teeth or picks located at strategic points adjacent the discs to ensure uniform soil disruption, the disc assembly being convertible from single gang to double gang assembly and may include conventional harrow teeth sets and or unique soil leveler attachments.

REFERENCES:
patent: 802068 (1905-11-01), Case
patent: 876145 (1908-01-01), Buchet et al.
patent: 1014987 (1912-01-01), Weiler
patent: 1397333 (1921-11-01), Schmitt
patent: 1397841 (1921-11-01), Mays
patent: 1458246 (1923-06-01), Schermuly
patent: 1631639 (1927-06-01), McDonald
patent: 1740874 (1929-12-01), Polhemus et al.
patent: 1822711 (1931-09-01), Silver
patent: 1888128 (1932-11-01), Hester
patent: 2659291 (1953-11-01), Tanke
patent: 3088527 (1963-05-01), Burch
patent: 3106255 (1963-10-01), Kenney
patent: 3225839 (1965-12-01), Petitt
patent: 3334916 (1967-08-01), Tibbals
patent: 3675725 (1972-07-01), Schultz
patent: 3845825 (1974-11-01), Boone et al.
patent: 3931858 (1976-01-01), North
patent: 4002413 (1977-01-01), Foster
patent: 4113028 (1978-09-01), Gluck
patent: 4180135 (1979-12-01), Birkenbach et al.
patent: 4211284 (1980-07-01), Collado
patent: 4308919 (1982-01-01), Coughran, Jr.
patent: 4361191 (1982-11-01), Landoll et al.
patent: 4595064 (1986-06-01), Anderson
patent: 4607705 (1986-08-01), Tebben
patent: 4687065 (1987-08-01), Cope et al.
patent: 4723787 (1988-02-01), Hadley et al.
patent: 5080178 (1992-01-01), Dietrich, Sr.
patent: 5082064 (1992-01-01), Landoll et al.
patent: 5161622 (1992-11-01), Godbersen
patent: 5259460 (1993-11-01), Evers
patent: 5462123 (1995-10-01), Harlan et al.
patent: 5628373 (1997-05-01), Domries
patent: 5881820 (1999-03-01), Baker
patent: 5915481 (1999-06-01), Flenker et al.
patent: 6612381 (2003-09-01), Powell et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Agricultural disc harrow and method does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Agricultural disc harrow and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Agricultural disc harrow and method will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3525016

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.