Excavating – Snow or ice removing or grooming by portable device – Motorized rotary excavating tool
Reexamination Certificate
1999-10-14
2001-01-09
Bagnell, David (Department: 3673)
Excavating
Snow or ice removing or grooming by portable device
Motorized rotary excavating tool
C037S244000, C037S248000, C180S068500, C439S500000
Reexamination Certificate
active
06170179
ABSTRACT:
TECHNICAL FIELD
The invention relates to snow throwers or snow blower devices for removing snow from roadways, and more particularly toward an improved battery powered snow thrower.
BACKGROUND OF THE INVENTION
Snow throwers are commonly known in the art and include a rotatable wheel or paddle for accumulating snow and throwing the snow away from the area. Such snow throwing devices commonly are of the paddle-type or auger-type. Most snow blowers today utilize a gasoline engine which drives a pulley connected to the wheel assembly of the paddle or auger-type. However, it is desirable to eliminate gasoline engines and utilize electric motors with battery storage capability to allow portability of such snow thrower and easy start.
U.S. Pat. No. 2,605,561, issued Aug. 5, 1952 in the name of Maynard et al discloses a snow plow which is driven by a motor. The motor may be an electric motor or may be a small gasoline motor of the type commonly used on power lawn mowers. When the electric motor is used, it is either connected to a source of power supply by means of a long extension cord, or may be operated by a storage battery carried on the frame of the apparatus in any suitable location. The specification states that if the apparatus is to be used at a considerable distance from a source of electrical current supply, a simple gasoline motor or the like may be used in place of the electric motor illustrated.
The prior art fails to disclose a snow thrower device having the ability to satisfactorily accumulate and throw snow while allowing for portability and benefits associated with a battery powered drive motor.
SUMMARY OF THE INVENTION
The invention is a snow thrower apparatus which comprises a housing, a snow gathering device connected to the housing for collecting snow, a chute for throwing the snow out from said housing, and a battery powered electric motor connected to the snow gathering device for actuating same to collect snow, and a removable battery including terminals for electrical connection to the electric motor. The housing includes quick connect assembly for allowing quick electrical connection between the battery and motor to allow removal and replacement of the battery.
The invention allows for batteries to be replaced within the snow thrower to allow uninterruption and extended duration of use in the clearing of snow. Further, a snow thrower having electric motor is more economical, easier to start and non-polluting as compared to the today available gasoline-type snow throwers. The subject invention provides a practical solution for snow throwers.
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Halleck Jason J.
Paytas Karen A.
Bagnell David
Hartmann Gary S.
Reising Ethington Barnes Kisselle Learman & McCulloch
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