Including Side Gate Discharge Preventer Patents (Class 37/280)
  • Patent number: 8522458
    Abstract: A choke plate on a shaft is arranged at a discharge end of a snowplow blade and is rotationally driven, selectively to a closed position for blocking the discharge of snow from the plow blade, and an open position for allowing the discharge of snow. Switching between the positions preferably involves successive quarter turns of the shaft in a consistent rotation direction. A controller receives inputs from a manual control switch, a speed-dependent timer, and an external signal receiver, and accordingly controls the opening and closing of the choke plate. External wireless signals are provided by transmitters located before and after a driveway that joins into a road that is being plowed. The choke plate is automatically controlled to temporarily block the discharging of snow from the snowplow as the plow passes the driveway, to prevent the formation of a discharge snowbank across the mouth of the driveway.
    Type: Grant
    Filed: November 22, 2010
    Date of Patent: September 3, 2013
    Inventor: Darrel M. Gendreau
  • Publication number: 20120180347
    Abstract: A snow plow assembly comprising a main plow body, at least one butterfly gate, at least one blocker and a diverter. The at least one butterfly gate and the at least one blocker are jointly connected to the main plow body and are controlled by actuators to be opened and closed. The actuators allow the users to control when to release or hold snow collected into the main plow body. This feature is used to prevent the buildup of high snow ridges in front of small pathways such as driveways.
    Type: Application
    Filed: January 19, 2012
    Publication date: July 19, 2012
    Inventor: Mike Mile Andic
  • Patent number: 8051587
    Abstract: A snow deflector apparatus that easily attaches to a snowplow, a kit that includes two snow deflector apparatus and a control system, and to a snowplow system that includes two snow deflector apparatus and a control system. The snow deflector apparatus includes a deflector plate, a deflector plate rotator mechanism and at least one spring. The deflector plate is dimensioned to obstruct at least a substantial portion of the end of the blade of the snowplow such that an amount of snow that is sloughed off of the blade is minimized when the deflector plate is in a deployed position.
    Type: Grant
    Filed: August 23, 2010
    Date of Patent: November 8, 2011
    Inventor: David W. Mills
  • Patent number: 7779563
    Abstract: A snow deflector apparatus that easily attaches to a snowplow, a kit that includes two snow deflector apparatus and a control system, and to a snowplow system that includes two snow deflector apparatus and a control system. The snow deflector apparatus includes a deflector plate, a deflector plate rotator mechanism and at least one spring. The deflector plate is dimensioned to obstruct at least a substantial portion of the end of the blade of the snowplow such that an amount of snow that is sloughed off of the blade is minimized when the deflector plate is in a deployed position.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: August 24, 2010
    Inventor: David W. Mills
  • Patent number: 7540103
    Abstract: The invention is related to an attachment to a front end loader. The invention comprises a dual blades having a rear frame which is fixed to the movable arm means at the front of the front end\ loader. The rear frame has a pivotal left arm and a pivotal right arm with a left blade mounting frame pivotal mounted to the forward end of the left arm and a left blade spring mounted to the forward end of the left mounting frame. A right blade mounting frame is pivotally mounted to the forward end of the right arm and a right blade spring mounted to the forward end of the right blade mounting frame. A pair of hydraulic cylinders with one mounted between the left arm and the rear frame and with the other mounted between the left arm and the left blade mounting means.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: June 2, 2009
    Inventor: James O. Broten
  • Patent number: 6681505
    Abstract: A snow plow blade includes a selectively extendable barrier attachment. The barrier attachment includes a base pivotally secured to the plow blade and secured to one end of each of a number of flexible members that are also engaged by a retraction mechanism for the barrier attachment that is disposed on the blade. The retraction mechanism is used to automatically retract and extend the flexible members as the base is pivoted between a retracted position and a deployed position on the blade. In the deployed position, the flexible members form a wall that prevents snow collected or diverted by the plow blade from passing through the barrier attachment. The barrier attachment may also include a separate deployment mechanism that operates to move the base between the retracted and deployed positions, and a brace used to hold the barrier attachment in position when in the deployed position.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: January 27, 2004
    Inventor: John Wells
  • Patent number: 6463683
    Abstract: An end gate for a grader blade includes a first body attachable to a grader blade. A second body is provided which supports a barrier member. The second body is pivotally secured to the first body for movement between a lowered operative position and a raised transport position. Upon the barrier member sustaining an impact when in the lowered operative position, the second body pivots to the raised transport position thereby reducing damage to the barrier member resulting from the impact.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: October 15, 2002
    Inventor: Kenneth Michael Skwarchuk
  • Patent number: 6363631
    Abstract: The lateral plough is attached to the hitch assembly of a grader or snow plough and is used to remove selected segments of an elongated pile of gravel or snow. The plough has an arcuate blade for pushing the gravel or snow forward. A gate is attached by a hinge to the outer end of the blade for preventing the gravel or snow from exiting from the blade as the grader or plough advances. The angle of the blade may be adjusted by shortening or lengthening the effective length of a chain which extends from the outer edge of the gate to the blade.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: April 2, 2002
    Inventor: Donald George Cordingley
  • Patent number: 6347465
    Abstract: A plow blade deflector system for reducing the size of windrows thrown to the side of a plow blade. The inventive device includes a first bracket and a second bracket attachable to the upper edge of a plow blade, a pivot structure attached to the brackets, an arm member pivotally attached to the pivot structure, an actuator attached to the plow blade and to a distal end of the arm member, an upper member attached to the arm member, and a deflector member vertically attached to the upper member. The deflector member preferably includes a plurality of brace members extending from the upper member to the deflector member for providing additional support during usage. The deflector member preferably extends at an acute angle with respect to the deflector member so as to be substantially parallel to a curb during usage. The actuator allows the operator of the snowplow to elevate the deflector member during normal usage thereby allowing the snow to be diverted to the side of the snowplow.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: February 19, 2002
    Inventor: Leland E. Jensen
  • Patent number: 6240660
    Abstract: An attachment for use with snow handling equipment such as a snowplow blade or a wheel loader bucket or similar implement, the attachment comprising a plate pivotally mounted at each end of the implement and movable between a forwardly projecting horizontal deployed position and a retracted position wherein the plate extends upwardly and does not interfere with normal operation of the implement. In the deployed position the plate is freely pivotal upwards and has a rounded front lower corner so that it can readily ride over curb stones and similar obstacles without damaging the mechanism. The attachments have the effect of greatly increasing the snow handling capacity of the implement without significantly detracting from its normal utilization.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: June 5, 2001
    Inventor: Gerard F. Dugas
  • Patent number: 6209235
    Abstract: A snow blocker attachment for a device used to move snow including a snow blocker having a wall member with a hole through central portion and near a bottom edge thereof, a frame to strengthen the wall, and at least one brace member formed about the hole. The snow blocker is pivotally mounted about a horizontal axis and upon a hub member which is securely attached to a bracket member which is securely attached to the snow moving device. A stop member is also securely attached to the bracket member and is used to limit the rotation of the snow blocker. In a second embodiment, the snow blocker attachment includes three plate-like members, two of which are securely attached along one side of the snow moving device and the other of which is attached across the top of the snow moving device. Instead of snow spilling over both sides of the snow moving device, the snow blocker attachment limits the snow spilling to just one side.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: April 3, 2001
    Inventor: Boyd D. Schiltz
  • Patent number: 5921326
    Abstract: Plow windrow interruption by use of a folding auxiliary blade that is designed to overlay a portion of the plow main blade. The auxiliary blade is motivated to fold vertically pleatwise and, by alternating projection of the folded auxiliary forward of the trailing edge of the main blade, and a return to the overlying posture, respectively stop and reestablish the debris windrow.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: July 13, 1999
    Inventor: Edward J. Ragule
  • Patent number: 5894689
    Abstract: A side-shield wing attachment for a plow blade is disclosed. The planar wing blade is attached to a key element which rides in a vertical slot in a keyway assembly which is attached to the back side of a plow blade. The wing plate is held in about a perpendicular orientation with the end of the plow blade by a tensioning devises, such as a chain or the like, while the plow is in use. Optional stiffener bars and wing wear shoes are disclosed. The side-shield wing attachment is easily mounted or removed from the plow blade as desired.
    Type: Grant
    Filed: July 14, 1997
    Date of Patent: April 20, 1999
    Inventor: Roger E. Turk
  • Patent number: 5815957
    Abstract: Device relating to a paired set of snow spoons mounted at or near the ends of a snowplow blade, featuring alternative two-position emplacements and an optional street-side obstruction buffer.
    Type: Grant
    Filed: February 8, 1997
    Date of Patent: October 6, 1998
    Inventor: Ronald Wayne McKeown
  • Patent number: 5025577
    Abstract: A moldboard assembly having a flexible moldboard sheet joined along its bottom edge to a scraper blade unit so that material passing over the blade is directed into contact with the sheet. One top corner of the sheet is fixed to a side plate and an adjusting arm is secured to the other top corner of the sheet and is independently positioned to contour the sheet to any desired shape whereby the flow of material through the assembly can be accurately controlled.
    Type: Grant
    Filed: August 3, 1989
    Date of Patent: June 25, 1991
    Assignee: Frink America, Inc.
    Inventor: Jan H. Verseef
  • Patent number: 4962600
    Abstract: A wing assembly is mountable to a plow blade driven in a direction of travel by a vehicle, and preferably left and right wing assemblies are respectively mounted on the left and right side edges of the plow blade. A representative wing assembly provides an auxillary plowing surface and has an inboard edge that is proximate the plow blade when the wing plate is mounted thereon. The wing plate is pivotally mounted on a vertical pivot axis so that it may pivot into an attack position at an obtuse angle .theta. to the plow blade with the inboard wing edge proximate the plow blade and an outboard portion projecting forwardly and outwardly from the front plowing surface of the plow blade. A latching structure retains the wing plate in the attack position. The pivotal mounts may be vertically aligned trunnion pins on the plow blade and matable opening on brackets defined by rear horizontal support and mounting webs on the wing plate. Where the plow blade can be canted at an obtuse angle .phi.
    Type: Grant
    Filed: September 8, 1989
    Date of Patent: October 16, 1990
    Inventors: Dennis D. Zellaha, David L. Bacon
  • Patent number: 4741116
    Abstract: A snow plow wing assembly (10) comprising a pair of heavy duty plow wing extension units (11) adapted to be secured at a fixed angle relative to a conventional vehicle mounted snow plow (100) wherein each of the extension units (11) comprise a blade element (12), a mounted bracket (13); a brace element (14) extending between the blade element (12) and the mounting bracket (13); a stabilizing arm (15); a resilient guard element (16); and releasable securing means (50) for attaching the wing assembly (10) to the vehicle mounted snow plow (100).
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: May 3, 1988
    Inventors: Edward P. Engle, Lester O. Dowler
  • Patent number: 4614048
    Abstract: A conventional snow plow comprises a scraper blade set at an angle, which then deposits a ridge of snow at the railing edge of the scraper blade. This ridge of snow creates problems at driveways and crosswalks.This present invention discloses a snow plow apparatus to control deposit of ridge of snow and thus prevent said ridge of snow at driveways, crosswalks, etc.
    Type: Grant
    Filed: November 18, 1985
    Date of Patent: September 30, 1986
    Inventor: Phillip J. Melby
  • Patent number: 4446639
    Abstract: An improved angling snow blade, of the type which pushes snow to the left or right as the supporting vehicle alternates directions across an area to be cleared, has a right (28) and left (29) side panel attached to hinge about the upper edge of the blade, whereby wider swaths can be taken as a result of either side panel blocking the snow from previously cleared areas. A removable bottom panel (31) hingedly attached at its leading edge to the lower leading edge of the side panels enables the improved blade to carry snow from one location and dump it in another and to pull snow away from vertical obstacles, particularly those surrounding corners.
    Type: Grant
    Filed: July 22, 1982
    Date of Patent: May 8, 1984
    Inventor: Donald L. Bohn