Class 37/246 - Electric motor drive

Subclass of Class 37 - Excavating
Definition: Apparatus wherein the shaft is driven by an electric motor.
No. of patents: 36
Last issue date: 11/23/2010

Number	Title	Issue Date
7836614	Rechargeable snow removal device and associated method A rechargeable snow removal device for displacing snow from a variety of locations may include a portable frame with a plurality of wheels. Further, the device may include a primary snow intake section connected to a front end of the frame, a power-actuated vacuum m...	11/23/2010
7343994	Working machine A working machine has a machine body, a working unit attached to the machine body, an internal combustion engine for driving the working unit, a traveling unit mounted on the machine body 11 for displacing the working unit over a ground surface to perform a w...	03/18/2008
7328762	Electric vehicle An electric vehicle has traveling units, first and second electric motors for driving the respective traveling units, a speed adjusting lever for adjusting a speed of the traveling units, a speed adjustment mechanism for generating a speed adjusting signal in respon...	02/12/2008
7320192	Motorized grain scoop An apparatus for moving particulate matter includes a body having a drive mechanism that operatively connects a motor to a shaft of a paddle assembly. A drive housing is disposed on the body and houses the drive mechanism. A cavity having a first side, a second side...	01/22/2008
7305778	Self-propelled working machine A self-propelled working machine has a pair of transporting parts, a working part, an engine for driving at least the working part, and a main switch for turning the engine on and off. A locomotion preparation switch produces a command for moving the transporting pa...	12/11/2007
7257909	Convertible yard tool A convertible yard tool is disclosed having an implement connected for rotation within a housing, wherein the implement and housing are operated relative to a ground surface in either a snow throwing orientation or a sweeping orientation. When operated in the snow t...	08/21/2007
7194827	Snow thrower discharge chute A snow thrower having a discharge chute rotation and locking device. The snow thrower includes a discharge chute rotatable about a chute axis with respect to the snow thrower housing to discharge in a selected direction snow under the influence of the auger. The sno...	03/27/2007
7143835	Walk-behind electric working machine A walk-behind electric working machine has a frame, an electric motor mounted on the frame, and a handle support section mounted on the frame, the handle support section having a pair of electrical terminals. A handle post has a first end portion for removable conne...	12/05/2006
7108089	Walk-behind self-propelled working machine A walk-behind self-propelled working machine includes an engine disposed with a crankshaft extending vertically in a downward direction and a cylinder disposed horizontally, and a generator having a drive shaft disposed vertically downward. The drive shaft of the ge...	09/19/2006
7100312	Working machine A working machine has a machine body, an engine mounted on the machine body, an electric motor mounted on the machine body, a working part driven by the engine during a working state of the working part for performing a working operation, and a transporting part dri...	09/05/2006
7096608	Overload prevention device for a snow removing machine An overload prevention device has a first rotational member for driving engagement with an input shaft of an auger transmission of a snow removing machine, a second rotational member engaging the first rotational member for rotation therewith over a predetermined to...	08/29/2006
7051461	Walk-behind working machine A walk-behind working machine has a traveling unit, a working unit, an engine, and an illumination section disposed forwardly of the engine for projecting light. A cover member collectively covers the engine and the illumination section. The cover member has a light...	05/30/2006
7004866	Shiftable toothed-belt drive A shiftable toothed-belt drive, containing an engagement and disengagement device, in order alternately to mesh radially and demesh radially a toothed belt, which is guided around at least two gearwheels, with and from at least one of the two gearwheels. A disengage...	02/28/2006
6977473	Travel control method of electric vehicle In a travel control method for an electric vehicle, an accelerator angle is obtained from a position of an accelerator lever. An accelerator percentage is determined in accordance with the accelerator angle. The ON times of first and second brake buttons are read. B...	12/20/2005
6968265	Travel control method of electric vehicle In a travel control method for an electric vehicle having first and second electric motors for driving respective first and second driven wheels, a speed of each of the first and second electric motors is calculated. The speed of the first electric motor is reduced ...	11/22/2005
6952990	Land mine overpass tread design A land mine pressure fuse avoidance system has a base. A tread on the base contacts the ground around a land mine and independently distributes pressures around the ground. The tread has plural independent closed cell foam rubber elements. Each element is separated ...	10/11/2005
6948569	Snow auger assembly A device for removing material from a surface includes a blade, an auger positioned in close proximity to a front side of the blade and operably mounted on an axle for rotary motion relative to the blade whereby material accumulating at the front side of the blade d...	09/27/2005
6938364	Two stage snowthrower with impeller housing bypass A two stage snowthrower includes snow removal components comprising a transversely extending auger housed within an auger housing. A generally cylindrical impeller housing is joined to a rear wall of the auger housing. A rotatable impeller within the impeller housin...	09/06/2005
6756750	Electric vehicle An electric vehicle driven by a pair of left and right electric motors is provided. The vehicle includes a controller for controlling the start of the vehicle. The controller performs such control as avoiding brake drag caused by the operation of the electric motors...	06/29/2004
6705028	Self-propelled snowplow vehicle A self-propelled snowplow vehicle includes a vehicle frame equipped with an auger at a front end portion thereof and pivotally connected to a propelling frame equipped with driving wheels, and a frame lift mechanism for lifting the front end portion of the vehicle f...	03/16/2004
6550161	Walk behind self-propelled crawler snowplow A walk behind self-propelled crawler has a travel ready lever mounted to one of the left and right handlebars and adapted to be gripped by a human operator to place the electric motors in an operative condition, and a clutch control pushbutton switch disp...	04/22/2003
6513267	Snow removing machine with snow removing plate A snow removing machine equipped with a snow removing plate is disclosed. The snow removing plate is mounted to a front portion of a vehicle body which forms part of the snow removing machine. An operating handle having grip portions is mounted to a rear ...	02/04/2003
6453583	Walk behind self-propelled crawler snowplow A walk behind self-propelled crawler snowplow includes a snowplow mechanism disposed on a front portion of a vehicle body, an engine disposed on a longitudinal central portion of the vehicle body for driving the snowplow mechanism, a left crawler belt and...	09/24/2002
6212799	Rotary drive contained within hollow rotating drum A single-stage snowblower (20) is designed as an accessory for attachment to an electric tractor, and takes power from the batteries on the tractor. The rotary drum (24) of the snowblower, which carries the spiral blade (25), is driven by two electric mot...	04/10/2001
6170179	Battery powered electric snow thrower A snow thrower (10) includes a rotatable wheel (12) for collecting the snow and a chute (14) for throwing the snow away from the snow thrower (10). The snow thrower (10) includes a motor (22) and a battery (24) connected thereto for providing power to the...	01/09/2001
6035561	Battery powered electric snow thrower A snow thrower (10) includes a rotatable wheel (12) for collecting the snow and a chute (14) for throwing the snow away from the snow thrower (10). The snow thrower (10) includes a motor (22) and a battery (24) connected thereto for providing power to the...	03/14/2000
5603173	Snow thrower A portable, hand-held snow thrower comprising a power unit and an attachment removably securable to the power unit. The attachment includes an impeller having a first pulley and a flexible drive shaft. A first end of the drive shaft is connected to the po...	02/18/1997
5522162	Snow blower shovel A portable rotary snow blower shovel which is lightweight and maneuverable is disclosed. The device uses the drive mechanism from a rotary string trimmer. In place of the string and string guard, the snow blower utilizes an impeller and a substantially cy...	06/04/1996
5269082	Rotary sweeper attachment The present invention provides a hand held, readily portable power sweeping tool. The tool includes an elongate boom having a power generation means disposed at one end thereof and a power sweeping means disposed at the other end. Power transmission means...	12/14/1993
5161318	Power sweeping tool The present invention provides a hand held, readily portable power sweeping tool. The tool includes an elongate boom having a power generation means disposed at one end thereof and a power sweeping means disposed at the other end. Power transmission means...	11/10/1992
4353422	Hand held power machine with oscillating tool A light weight hand-held power actuated tool for aiding an operator do work such as raking, thatching, cultivating, hoeing and sweeping. A main member with handles for operator support has a motor attached. The motor activates a mechanism which holds a working...	10/12/1982
4329792	Snow remover The invention relates to a very light weight portable single stage snow remover which is electrically powered, can be operated and manipulated in a sideways swinging fashion in the manner of a broom, can handle normally difficult areas to clean such as st...	05/18/1982
4295285	Snowthrower An improved snowthrower (2) comprises a housing (4) having a rotatable impeller (6) therein. Impeller (6) is rotationally molded from plastic and is easily replaceable in housing (4). Moreover, impeller (6) includes a plurality of snow impelling blades (6...	10/20/1981
4190972	Snow remover The invention relates to a very light weight portable single stage snow remover which is electrically powered, can be operated and manipulated in a sideways swinging fashion in the manner of a broom, can handle normally difficult areas to clean such as st...	03/04/1980
4150501	Handy snow plough A manually operable mobile snow plough includes a streamlined main body supported upon wheels or runners for movement over the ground or snow. The main body has one or more entrance openings for receiving snow, and at least one blade mounted rotatably wit...	04/24/1979
4053958	Surface preparation machine This device consists primarily of a tool (blade, chisel, or sanding attachment) which is attached to a tool holder. The tool holder in turn is attached by a bearing to a shaft which passes thru a flywheel, the shaft is offset from the center of the flywhe...	10/18/1977

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Class 37/246 - Electric motor drive