Four wheel drive snow blower
May 18, 2020. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3791469 Railroad switch sweeper Ice removing machine Multi-purpose vehicle Lawn mower power take-off and accessories All terrain vehicle Transparent plow blade Snow plow with bar reinforced deformable blade Ground working machine for hoeing, tilling and the like Implement coupler kit for tractor InventorApplicationNo. 573598 filed on 05/18/2000US Classes:37/257, Screw-type auger180/19.3Handle movement controls vehicle driveExaminersPrimary: Pezzuto, Robert E.Attorney, Agent or FirmInternational ClassesB62D 051/04E01H 005/00 AbstractA snow thrower is provided a pair of wheels on each side. The snow thrower includes two laterally spaced wheel drive assemblies for independently supplying power from the engine to each pair of wheels. Each wheel drive assembly includes a drive sprocket, which receives input from the engine, and front and rear driveable sprockets, which are operably associated with front and rear wheel axles to drive one pair of wheels. Each wheel assembly may be operated independently to provide power steering control.Field of SearchFour-wheel controlledElectric With motor in or moveable with wheel Handle movement controls vehicle drive With gearing between electric motor and drive wheel Having specific motor-to-body-frame relationship Including change-speed gearing, or clutch, mounted in common with motor Independently operable drive motors Electrical Source comprises or includes energy derived from force of nature (e.g., sun, wind) Screw-type auger Lawnmower Motorized rotary excavating tool Rotor shaft adjustable relative to direction of travel Including screw-type auger for first stage And centrifugal impeller for final stage Auger and impeller on single shaft | |
