Harvesters – Cutting – Housing or guard
Patent
1994-12-12
1995-11-14
Novosad, Stephen J.
Harvesters
Cutting
Housing or guard
56 136, 56 175, 56 169, A01D 3466, A01D 3468, A01D 3473, A01D 7500
Patent
active
054655641
ABSTRACT:
A mower deck is convertible between a discharge configuration wherein grass clippings are discharged from the deck and a mulching configuration wherein grass clippings are mulched within the deck. The deck has a housing with a discharge port for discharging grass clippings from the housing when the deck is in the discharge configuration. Spindles are rotatably mounted to the housing and coupled to a drive mechanism. A cutting blade is attached to each spindle. A removable shroud can be attached to and removed from the housing. The mulching configuration of the deck corresponds to when the removable shroud is attached to the housing and the discharge configuration of the deck corresponds to when the removable shroud is detached from the housing. A fixed shroud is attached to the housing and partially enshrouds the cutting path of the cutting blade. When the removable shroud is attached to the housing, the cutting path of the blade is substantially enshrouded by a combination of the fixed shroud and the removable shroud. Tapered baffles are attached to the removable shroud and are positioned substantially perpendicular to the cutting paths of the blades so that the baffle facilitates zones of turbulence in the airstream above and around the blade, the zones of turbulence causing grass clippings to drop to the ground.
REFERENCES:
patent: 2836024 (1958-05-01), Davis et al.
patent: 3680295 (1972-08-01), Rutherford
patent: 3797212 (1974-03-01), Pursel
patent: 4189903 (1980-02-01), Jackson et al.
patent: 5129217 (1992-07-01), Loehr
patent: 5210998 (1993-05-01), Hojo et al.
patent: 5267429 (1993-12-01), Kettler et al.
The Dixon mower deck depicted in Exhibits A and B which was in public use or on sale in the United States prior to Dec. 12, 1993.
The Exmark mower deck depicted in Exhibit C which was in public use or on sale in the United States prior to Dec. 12, 1993.
The Encore mower deck depicted in Exhibit D. which was in public use or on sale in the United States prior to Dec. 12, 1993.
The John Deere mower deck depicted in Exhibit E which was in public use or on sale in the United States prior to Dec. 12, 1993.
The Woods Equipment Company mower deck depicted in Exhibit F which was in public use or on sale in the United States prior to Dec. 12, 1993.
Esau Merlin L.
Koehn Leroy F.
Moridge Manufacturing, Inc.
Novosad Stephen J.
LandOfFree
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