Harvesters – Motorized harvester – Having fluid-pressure or stored-energy motor
Patent
1996-11-15
1999-04-20
Melius, Terry Lee
Harvesters
Motorized harvester
Having fluid-pressure or stored-energy motor
563201, A01D 3478
Patent
active
058947159
ABSTRACT:
The power head assembly for a cordless electric lawnmower has a removable upper housing that includes two spaced batteries, and a lower housing that is mounted to the deck of the grass cutting device. The upper housing has a handle, and at least one quick disconnect terminal that engages a mating quick disconnect terminal affixed to the lower housing. The lower housing includes an electric motor that is disposed between the two batteries when the upper housing is in place. A portion of the electric motor is located below the deck to further reduce the overall height of the device. The lower housing is mounted to the deck by several bolts which are placed in the same mounting pattern used to mount gasoline engines to a deck, so that the same decks may be used for both the cordless electric and gasoline-powered lawnmowers.
REFERENCES:
patent: 3973378 (1976-08-01), Bartasevich et al.
patent: 4064680 (1977-12-01), Fleigle
patent: 4882896 (1989-11-01), Wilcox
patent: 4942723 (1990-07-01), Wassell
patent: 5085043 (1992-02-01), Hess et al.
patent: 5402626 (1995-04-01), Zinck
patent: 5615540 (1997-04-01), Yang
AL-KO Accu Tec 32, Advertising flyer, published by AL-KO Britain Ltd., Aug., 1993.
"CCM650 18" Cordless Mulching Mower, published by Black & Decker Canada Inc., Dec., 1993.
"Owner's Operating Manual Cordless Mulching Mower Model BMM2400" published by Ryobi Outdoor Products, Inc. of Chandler, Arizona, Jan., 1993.
"Electric mower that really works", Popular Science magazine, Mar., 1974, p. 28 etc.
"Wolf-Gerate, instruction Manual, Senator accu 35", published Nov., 1991.
Photograph, Wolf-Gerate Cub Eletric Lawnmower, first sold at lest as early as 1994.
Photograph, Tecumseh Products power for a cordless electric lawnmower, publicly shown Jul. 1995.
Photograph, Wolf-Gerate cordless electric lawnmower, Jul., 1995.
SAE Standard J609a, Figure 3, p. 24.21 revised Jul., 1965.
Braun Michael
Bruener Patrick
Johnson Gary S.
Briggs & Stratton Corporation
Melius Terry Lee
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