Abstract: An impeller assembly for a snowthrower includes a driven shaft configured to rotate about an axis, a flexible impeller configured to rotate about the axis and extending horizontally across substantially a complete width of the impeller assembly parallel to the axis, and a rigid cutting implement. The flexible impeller extends radially from the driven shaft to an impeller radial distance. The rigid cutting implement extends radially from the driven shaft to a cutting implement radial distance less than the impeller radial distance, wherein the rigid cutting implement is spaced apart from and does not contact the flexible impeller.
November 21, 2017
Date of Patent:
October 30, 2018
Briggs & Stratton Corporation
Richard J. Gilpatrick, John E. Gulke, Peter Jerger, Christopher M. Fisher
Abstract: A digging system includes a machine having a machine frame, and an implement assembly mounted to the machine frame. The implement assembly includes an elongate boom and a trenching mechanism having a plurality of drawing cutters coupled with an endless drive chain movable about a drive system mounted to an elongate boom. The implement assembly further includes an undercutting mechanism having first and second rotating cutters projecting in opposite axial directions from the distal boom end. The implement assembly defines a compound projection profile in a plane which includes first and second axes of rotation of a drive wheel and guide wheel of the drive system. The compound projection profile includes a relatively narrow proximal stem segment corresponding to the trenching mechanism and a relatively broad distal footing segment corresponding to the undercutting mechanism.
Abstract: An engine of a snow blower is arranged with a crankshaft along a front to rear direction of the snow blower, and an output shaft, with an outer circumferential portion on which a drive pulley is fixed, is provided in a front end portion of the crankshaft. Further, an intermediate shaft with a rear end circumference on which a driven pulley is fixed and with a front end circumference, on which an impeller drive pulley is fixed, is arranged to extend toward a front direction higher than the output shaft. An impeller drive shaft with a rear end circumference on which an impeller driven pulley is fixed is arranged to extend toward the front direction more downward than the intermediate shaft. A first transmission belt is meshed with the drive pulley and the driven pulley, and a second transmission belt is meshed with the impeller drive pulley and the impeller driven pulley. Using this arrangement, it is possible to provide a snow blower with a low center of gravity.
December 30, 2008
Date of Patent:
June 8, 2010
Yamaha Motor Power Products Kabushiki Kaisha
Abstract: One embodiment of the present invention pertains to a system, including a mechanical arm, an attachment member, an actuator, a power system, an electronic control, and an operator interface. The attachment member is tiltably mounted on the mechanical arm about a pivot joint. The actuator is operably connected to the attachment member for powering the attachment member to tilt about the pivot joint. The power system is operably connected to the actuator. The electronic control is operatively connected to the power system, and comprises an automatic vibration mechanism for causing the attachment member to vibrate automatically in response to an activation signal. The operator interface is in operable communication with the electronic control. The system comprises a default state and an activation state for causing the activation signal.
Abstract: A snow removal or ground-surface cleaning apparatus that is pushed or pulled by a prime mover. The apparatus has a drum array that includes rows of triple-stepped blade-like fingers distributed evenly around a drum array. These fingers are stiffly flexible and can cleanly and efficiently pick up snow and debris from uneven ground surfaces.
Abstract: A modular implement apparatus and method of use for securing a snowblower to an all terrain vehicle (ATV) comprises an implement mounted to a first end of the ATV and an engine mounted at a second end. A longitudinal support structure extends between the two ends and supports a drive shaft assembly. The engine provides power to the implement, thus eliminating the need for a PTO shaft. The apparatus is further adapted to permit placement of the apparatus in either a ground-engaging position or a raised, transport position.
January 29, 1999
Date of Patent:
January 30, 2001
Erskine Manufacturing Company, Inc.
Michael W. Gustafson, Timothy K. Radniecki
Abstract: A hydraulic system used in conjunction with a standard pickup truck and the like for powering a snowblower and other implements. The hydraulic system provides power for controlling up and down movement of a snowblower and for driving the snowblower's auger and fan. The hydraulic system, which only minimally impacts the pickup truck's horsepower output, is designed so that all of its mechanical components may be placed within the truck's engine compartment. The hydraulic system can be easily connected to and removed from a truck's existing engine mount, and the snowblower unit itself is designed so that it may be easily attached to the vehicle.
Abstract: Apparatus defined by an elongate truck body with a cab and truck bed housing overlying elongate truck frame plate. A forwardly oriented chute with an impeller drive at a forwardmost end of the chute directs snow upwardly through the chute by use of a drive belt into a receiving tank. The receiving tank includes a plurality of heater plates arranged in an angular relationship overlying the tank adjacent the uppermost end of the drive belt. The truck bed includes an auxiliary pump for directing fluid outwardly relative to the tank and further includes a drive motor for driving a generator to operate the heater plates, auxiliary pump, and heater unit positioned rearwardly within the truck bed housing with the heater unit underlying an apertured floor of the truck frame plate to direct heat therethrough to effect completion of snow removal underlying the truck body during its traverse over a road surface to be cleared of snow.
Abstract: In a rotary snow plough having a feed plough arranged on a side of its housing (2) in order to increase the intake cross section, the accumulation of snow on the ploughshare (8) of the feed plough (4) is avoided by providing, in the ploughshare (8), a belt conveyor element (11) supplying the rotary element(s) of the rotary plough.
Abstract: An ice preparation machine has a snow container, and a conveyor for transporting of snow removed from an ice surface into the snow container and formed as an inclined container including a belt drive provided with driving posts which are arranged centrally between screws transporting the snow.
Abstract: A means for removal of snow and/or ice from a road or other equivalent area, meant to be attached to a work machine, said means comprising a helical cutter (10) disposed substantially transversally to the direction of travel of the work machine, a drive means (11) for rotating the cutter about its central axis (12), and members (6,7,8) for collecting the material detached by the cutter (10) and for their removal from the ground and transportation onto a load platform (9). The object is to eliminate the drawback encountered in means of this kind that it is not possible with them to remove the snow and ice simultaneously from the carriage-way and pavements and from behind traffis signs, posts and other similar obstacles.
Abstract: A feeding device comprises a rotary drum (1) in the casing wall (2) of which narrow slots (3, 4) are provided, said slots serving as intakes for the material to be fed. Blade-like elements (5, 6) project from the outside of the casing wall and co-operate with said slots for the purpose of ripping and carrying along material upon rotating of the drum so as to introduce the material into the interior of the drum through the intake slots (3, 4). On the inside of the casing wall (2) flange members (9, 10) are provided for conveying the material introduced into the drum to an outlet opening (8) at one end of the drum. (FIG. 1).
Abstract: The sense circuit includes first and second inverters connected at their inputs to a signal input node and a reference node, respectively. The inverters are selectively biased to different quiescent points for charging the signal input node and the reference node to different quiescent voltage levels. Signals applied to the signal input and reference nodes cause the potential at these nodes to vary from their quiescent values. The inverters are selectively cross-coupled to form a flip flop whose binary value is determined by the outputs of the inverters. For the same value of signals applied to the two nodes the flip flop is set to the state dictated by the initial voltage offset due to the difference in the quiescent points of the inverters.