Harvesters – Cutting – Rotating-cutting-disk type
Patent
1984-12-18
1987-08-11
Hirsch, Paul J.
Harvesters
Cutting
Rotating-cutting-disk type
56229, A01D 3442
Patent
active
046852808
ABSTRACT:
An inproved cutting unit specially suited for grooming turf includes a frame supporting a conventional horizontally mounted driven reel having a number of spirally arranged blades. The cutting unit is supported on the ground by front and rear rollers. The front roller is a slotted expunger roller having numerous annular slots along its axis. Immediately behind the expunger roller is mounted a knife roller which includes numerous vertically oriented knife blades aligned with the circular slots of the expunger roller. As the expunger roller rolls along turf, horizontally lying plant material is pulled or puckered up by the expunger roller into the circular slots. The knife roller, driven at a high rate of speed about its own axis, pulls up and slices through the pulled up plant material. The expunger roller is mounted to the frame while the knife roller is pivotally mounted to the expunger roller to allow the height of the knife roller to be varied without changing the height of cut or the distance between the knife and expunger roller axes.
REFERENCES:
patent: 366879 (1887-07-01), Ristvedt
patent: 850777 (1907-04-01), Mosher
patent: 1008708 (1911-11-01), Eidem
patent: 1407962 (1922-02-01), Thomas
patent: 1538381 (1925-05-01), Bull
patent: 1633802 (1927-06-01), Wright
patent: 2032777 (1936-03-01), Thomas
patent: 2204569 (1940-06-01), Bushong
patent: 2246880 (1941-06-01), Erke et al.
patent: 2300851 (1942-11-01), Wolfard
patent: 2526396 (1950-10-01), Nowlin
patent: 3338037 (1967-08-01), Bauer et al.
patent: 3452823 (1969-07-01), Shapland, Jr.
patent: 3641754 (1972-02-01), Anstee
patent: 3739856 (1973-06-01), Rax
patent: 3783592 (1974-01-01), Schraut
patent: 3937285 (1976-02-01), Van der Lely
patent: 4202414 (1980-05-01), vom Braucke et al.
patent: 4402366 (1983-09-01), Daniel
patent: 4494365 (1985-01-01), Lloyd
Wiehle Roller Kit by Toro Co., 1969.
Thatching Reel, Greenmaster 3 by Toro, Model 04416-2001.fwdarw.10001 Lup., .COPYRGT.1976.
Toro Owner's Manual for Greenmaster Cutting Unit Model No. 04400.
Advertisement for Hahn Greens Management System, Model Tournament 1202, attachment entitled "Verti-Cut", Thatcher.
Toro Owner's Manual for Greenmaster 3, Model No. 04311-10001, pp. 1, 7 and 8.
Golf Course Management, Apr. 1983, p. 30, advertisement for Bunton Greensmower.
Grounds Management, Apr. 1983, pp. 19-20.
Golf Business, Mar., "Verticutting Produces Smoother, Healthier Turf", by Dr. Fred V. Grau.
Lloyd Lawrence L.
Lloyd, executor Barbara
LandOfFree
Mower cutting unit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Mower cutting unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mower cutting unit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-396080