Scraper Blade Patents (Class 37/266)
  • Patent number: 5528793
    Abstract: A multipurpose squeegee intended for use in removing snow, slush, water and other liquids from automobile surfaces and various other surfaces. The squeegee comprises a downwardly open U-shaped base within which are secured two layers of polyethylene foam or similar material. The foam extends slightly beyond the ends of the base to prevent damage to adjacent surfaces. A handle is attached to the base. A generally Y-shaped deflector with the upper arms thereof formed as curved wings is attached to the upper surface of the base to deflect excess material in the direction that the squeegee is being moved.
    Type: Grant
    Filed: July 10, 1995
    Date of Patent: June 25, 1996
    Inventor: Michel Schbot
  • Patent number: 5524369
    Abstract: A snow removal device permits a user to subdivide and then pull down sections of snow accumulated on a roof or other surface. An elongated handle supports an oppositely disposed blade and cutter, the cutter preferably having a taut wire between side struts attached to a top edge of the blade. The user draws the cutter through a section of snow, subdividing a rectangular slab of snow from the accumulated snow, then flips the device over and removes the slab with the blade. The cutter is generally perpendicular to the handle and the blade is inclined to lift the snow in the pulling direction. The cutter can be height adjustable and wheeled at the side struts, with the side struts shaped and coated for minimal friction. The handle can be length adjustable, e.g., by telescoping, and angularly adjustable or compactly collapsible via an articulation having complementary splines and groove for setting an articulation angle.
    Type: Grant
    Filed: October 4, 1994
    Date of Patent: June 11, 1996
    Inventor: Kent D. Phillips
  • Patent number: 5497569
    Abstract: A groomer attachment for forklift vehicles includes an elongated rigid member having a top and a bottom. A pair of spaced-apart fork receiving pockets are connected to the rigid member. A flexible blade extends from the bottom of the rigid member. Preferably the rigid member has a front and a rear. The attachment then has a pair of spaced-apart flexible blades extending from the bottom of the rigid member, a first blade being adjacent the front thereof and a second blade being adjacent the rear thereof. The rigid member may be channel-shaped.
    Type: Grant
    Filed: June 9, 1994
    Date of Patent: March 12, 1996
    Inventor: Lorne Byman
  • Patent number: 5487428
    Abstract: A straight-ahead traveling control system for a bulldozer comprising: (a) a driving mode setting device which can set an automatic blade control mode for dozing operation; (b) a yaw angle detector for detecting the yaw angle of a vehicle body in relation to a target traveling direction for the vehicle body; (c) a blade tilt angle detector for detecting the tilt angle of the blade tilting laterally in relation to the ground; and (d) a blade controller for controlling tilting of the blade based on a first blade tilting amount used for driving the vehicle body straight ahead and a second blade tilting amount used for forming a laterally horizontal earth surface after digging by the blade, the first blade tilting amount being obtained from the yaw angle of the vehicle body detected by the yaw angle detector and the second blade tilting amount being obtained from the tilt angle of the blade detected by the blade tilt angle detector, when the driving mode setting device has set the automatic blade control mode.
    Type: Grant
    Filed: June 23, 1994
    Date of Patent: January 30, 1996
    Assignee: Kabushiki Kaisha Komatsu Seisakusho
    Inventors: Shigeru Yamamoto, Shigenori Matsushita, Shu huai Zhang, Satoru Nishita, Kazushi Nakata
  • Patent number: 5485690
    Abstract: A lightweight snowplow configured of a number of small components, each easily lifted, moved, assembled, dis-assembled and stored by an average individual. The snowplow is especially suitable for use with small vehicles such as small trucks, utility vehicles and cars. The snowplow features novel alternate arrangements for operational lifting, stopping and lowering of the snowplow and a quick-hitch/release mechanism for easy plow attachment purposes. Finally, the mounting structure to which the plow is attached and detached is designed so as to be able to fit most small utility vehicles with two fore and aft frame chassis members and a frame mounted metal bumper without need for welding or special custom fit-up.
    Type: Grant
    Filed: January 18, 1994
    Date of Patent: January 23, 1996
    Inventor: James P. MacQueen
  • Patent number: 5477600
    Abstract: A deformable plow operates off of at least one hydraulic cylinder that extends from a post on the plow frame to a guide bar positioned along the upper edge of a plastic or deformable moldboard.
    Type: Grant
    Filed: November 29, 1993
    Date of Patent: December 26, 1995
    Assignee: Tenco Machinery Ltd.
    Inventors: Bertrand Y. Houle, Guy P. Lamoureux, Luc J. Guertin
  • Patent number: 5471770
    Abstract: A wear pad assembly for the bottom of a large machine operated device has a number of wear pads, each of which has a number of sections which are compressed and sandwiched together. The sections have an inclined front surface to assist in scooping debris or snow from a floor surface or a street. The sections are mounted in a frame which has a top plate, a pair of end plates which are perpendicular to the top plate, and a pair of rods which extend between the end plates and are parallel each other and to the top plate. The sections may include fabric reinforced rubber, molded rubber, polyurethane, or a combination of these materials.
    Type: Grant
    Filed: October 5, 1993
    Date of Patent: December 5, 1995
    Assignee: F&B Enterprises, Inc.
    Inventor: Thomas Ferreira
  • Patent number: 5410824
    Abstract: A scraping implement that can be quickly coupled and uncoupled to a conventional self-propelled snowblower for the removal of snow from a driveway or sidewalk. Drop pins releasably hold the frame of the implement to opposite sides of a snowblower housing. The implement has a concave curved plow mounted on a frame for angle adjustments. A bolt extends through a swivel plate and the frame to hold the plow at the selected position. The frame is laterally adjustable to fit different sized snowblowers.
    Type: Grant
    Filed: December 3, 1993
    Date of Patent: May 2, 1995
    Inventor: Donald A. Pedersen
  • Patent number: 5392538
    Abstract: The extendable drag plow provided by this invention has a laterally-fixed center section, and moveable outer sections positioned by a controllable actuator system. The moveable plow sections are equipped with followers engaging oppositely-extending pairs of guideways in the central plow section, with the actuators positioned between these pairs. A lifting actuator extends between pivotal connections to a bracket mounted on the vehicle and a terminal fixed with respect to the central plow section. Drag arms are also pivotally connected to a bracket mounted on the vehicle and are secured at their opposite end to the central plow section. A diagonal brace extending between the top portion of the central plow section and the drag arm is also used as a terminal for the actuator.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: February 28, 1995
    Inventors: Gerald J. Geerligs, Rick A. Geerligs
  • Patent number: 5309653
    Abstract: A snow deflection system for a snowplow includes an arcuate foil and a preferred belt. Both the foil and the belt are attached to the moldboard of the plow so that the preferred belt keeps the plowed snow close enough to the moldboard to allow the arcuate foil to direct the flow of snow and air, which blows over the top of the moldboard, down and away from the plow vehicle.
    Type: Grant
    Filed: December 4, 1992
    Date of Patent: May 10, 1994
    Assignee: Snow Visions, Inc.
    Inventors: Walter G. Pease, Michael J. Collins, Arthur J. Smith
  • Patent number: 5265356
    Abstract: A hydraulic system for a hydraulic-piston-lifted snowplow adapted to scrape a surface (e.g., a snowplow for scraping snow and ice off pavements) is shown. To save unnecessary wear on the snowplow blade, the system can be operated to allow less than the full weight of the moldboard and blade to rest on the surface being scraped. In the operation of the plow, a fraction of the moldboard and blade weight selected, the magnitude of an instantaneous deviation therefrom is measured and converted into an electrical signal, and a servo-operated control valve is actuated in response to said signal for bypassing more or less hydraulic fluid away from piston in connection of the hydraulic lift given the moldboard and blade by the piston.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: November 30, 1993
    Inventor: Kent L. Winter
  • Patent number: 5177887
    Abstract: A support arrangement for a blade of a construction machine is disclosed where the blade is located to one side of the construction machine. The support arrangement includes two support towers spaced in the length of the frame of the machine with these support towers accommodating variation in the elevation of the blade. The blade is pivotally secured at a forward end thereof to one of the support structures and secured adjacent the other end of the blade to the other support structure by means of two hydraulic cylinders which extend outwardly from the support structure. These hydraulic cylinders also include an arrangement for controlling the angle of the two hydraulic cylinders relative to the connected support structure. The arrangement for controlling the angle of the two hydraulic cylinders accommodates limited, rapid upward movement of the blade.
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: January 12, 1993
    Assignee: Champion Road Machinery Limited
    Inventors: Edward McGugan, Leonard Harman
  • Patent number: 5155929
    Abstract: A snowplow deflector assembly is attachable to that type of snowplow which is mounted on the front end of a vehicle. The deflector assembly comprises a deflector member which is supported to extend over the top of the blade of the snowplow to deflect snow moving off the top of the blade, that snow being thereby substantially prevented from being thrown against the windshield of the vehicle and obstructing the view of a driver. Two embodiments of the invention are described.
    Type: Grant
    Filed: May 5, 1992
    Date of Patent: October 20, 1992
    Inventor: Gaston Vachon
  • Patent number: 5088215
    Abstract: A plow is constructed of a curved high density polyethylene moldboard and frame assembly. The moldboard can be constructed with a mounting collar that slides over and grips the frame or with the frame molded into and encapsulated by the polyethylene. A scraper blade is attached to the bottom of the frame for increasing the moldboard's ridigity and/or securing the moldboard to the frame.
    Type: Grant
    Filed: December 3, 1990
    Date of Patent: February 18, 1992
    Assignee: The Lewis Berkman Company
    Inventor: James C. Ciula
  • Patent number: 5081775
    Abstract: A device for attaching a plow to the front of a vehicle is described. It secures to the plow mechanism and serves to raise it in a balanced manner for convenient attaching to the vehicle.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: January 21, 1992
    Inventor: Leo Veilleux
  • Patent number: 5075987
    Abstract: An apparatus for removing compressed snow and the like, includes a steam cutter provided with a plurality of longitudinally extending steam pipes connected to a steam header, with each of the steam pipes having a steam discharging opening formed in its undersurface, and an excluding blade located behind the steam cutter. The blade is disposed at an angle of inclination with respect to an advancing direction of the removing apparatus, which angle can be adjusted.
    Type: Grant
    Filed: January 23, 1990
    Date of Patent: December 31, 1991
    Assignee: Chugai Ro Co., Ltd.
    Inventors: Tethuo Akiyama, Kunio Fujii, Kiyokazu Nagai, Masayuki Imose
  • Patent number: 5072530
    Abstract: Device for preparing the landing plate of a ski-jump, guide and deflection rollers being arranged, provided with clearance, in the vicinity of the take-off platform of the ski-jump, which rollers receive a cable, the ends of which, arranged along the landing plate, can be connected to two snow vehicles.
    Type: Grant
    Filed: March 19, 1990
    Date of Patent: December 17, 1991
    Assignee: Prinoth S.p.A.
    Inventor: Walter Goller
  • Patent number: 5050322
    Abstract: Snowplow apparatus is provided having a blade assembly and elongated tongue secured at one end to the blade assembly and having a connector device at the other end for detachably securing of the tongue to a single-point hitch assembly of an automotive vehicle whereby the tongue may oscillate in a vertical plane about its point of attachment. A stabilizing mechanism secured to the tongue in axially spaced relationship to the connector device detachably connects with the vehicle to prevent oscillation of the tongue about its point of attachment to the hitch assembly of the vehicle in a horizontal plane. The blade assembly is provided with lift units automatically operable upon traversing movement of the blade assembly over a ground surface to be cleared of snow accumulation to lower the blade assembly into plowing relationship when moved in a direction effective for plowing and to lift the blade assembly a distance above the ground and support it for transport when moved in an opposite direction.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: September 24, 1991
    Inventor: David A. Burkard
  • Patent number: 5048207
    Abstract: A wing plow for use with a main plow has a scraper blade and a fixed moldboard mounted on the top edge of said scraper blade for the inner portion of the wing plow and a flexible moldboard sheet member joined to said rigid moldboard section and extending to the discharge end of said wing plow. An adjusting arm and hydraulic cylinder are connected to the top corner of the outer end of the flexible sheet to independently position and contour the discharge end of said sheet to control the discharge of material from the wing plow.
    Type: Grant
    Filed: March 13, 1990
    Date of Patent: September 17, 1991
    Assignee: Frink America, Inc.
    Inventor: Jan H. Verseef
  • 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: 5018284
    Abstract: To the front of the snow removing vehicle, a snow plow having a variable curved surface is mounted. The curved surface of the plow is varied by use of universal joints and telescopic cylinders. The curved surface of the plow is varied according to the snow removal conditions.
    Type: Grant
    Filed: December 19, 1988
    Date of Patent: May 28, 1991
    Assignee: Japan as represented by Director of Construction Machinery Works of Hokkaido Development Bureau
    Inventors: Shiro Mikami, Seiju Ooshima, Yoshio Nagahara
  • Patent number: 4962599
    Abstract: A quick connect-disconnect coupling is provided for snow plows and like devices. The coupling includes a hitch ear plate and a retaining ear plate preferably attached to the plow. The hitch ear plate has a configured gathering surface and the retaining ear plate has a hitch pin opening extending therethrough. A bracket arrangement preferably attached to the vehicle contains a spring biased axially movable hitch pin. The hitch ear plate positions the retaining plate so that its opening is in registry with the hitch pin when the plow is to be coupled to the vehicle. Rotation of the hitch pin allows the spring to axially move the hitch pin and snap the pin through the hitch pin opening to lock the plow to the vehicle.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: October 16, 1990
    Assignee: DSP, Inc.
    Inventor: Gary S. Harris
  • Patent number: 4924610
    Abstract: This invention is to disclose and claim apparatus for a roadway snow plow attachment described as a cable mount disc or pulley mounted in a cable holder disc or pulley housing and a cable hanger yoke vertically hanging and attached to a hanger arm and a cable threaded on one loop around the cable mount disc or pulley and the eyes of the cable attached to the snow plow blade mount beam and the cable eyes attached to the plow blade mount beam at points or locations extending outwardly from the vertical center line of the snow plow blade.
    Type: Grant
    Filed: May 22, 1989
    Date of Patent: May 15, 1990
    Inventor: Wayne N. Sodemann
  • Patent number: 4907357
    Abstract: A snow plow assembly adapted for mounting on a vehicle. The snowplow assembly includes a conventional blade mounted on the front of the vehicle and powered with conventional hydraulic systems. The snow plow assembly also includes a blade mounted on the rear of the vehicle which may be raised or lowered and maintained in a selected position by hydraulic ram and which may be tilted in pitch. Diverter switches permit the vehicle operator to selectively use a single control for either changing the angle of the front plow in a horizontal plane or either for raising or lowering the rear blade or for tilting the pitch of the rear blade. Thus, the snow plow assembly can readily be adapted and retrofitted on vehicles possessing conventional front blades. A method of using the snow plow assembly is also disclosed.
    Type: Grant
    Filed: February 24, 1988
    Date of Patent: March 13, 1990
    Inventor: Scott C. Lilienthal
  • Patent number: 4883129
    Abstract: Ground engaging bits used in abrasive road grading applications utilizing carbide inserts brazed to the leading face of the steel tip are beneficial on motor grader blades. Commercial road grading bit assemblies used consistent thickness, rectangular carbide inserts brazed to the leading edge of the steel tip. Due to wear and high residual stresses imparted upon the insert from the brazing operation, premature cracking and breaking of the carbide inserts occur. The subject bit arrangement utilizes a carbide insert with a flat rectangular cutting face of non-constant thickness brazed to a leading edge of a steel body. The carbide insert has a thickness that increases from the top of the carbide insert and reaches a maximum at the bottom of the steel body, where bit wear is the greatest. The increasing thickness of the carbide tip extends bit life over the current rectangular design and allows for a more efficient and economical use of the carbide.
    Type: Grant
    Filed: December 16, 1988
    Date of Patent: November 28, 1989
    Assignee: Caterpillar Inc.
    Inventors: Alan H. Lonn, Daniel W. Nelson
  • Patent number: 4845866
    Abstract: An improved blade for a snow plow is provided. The blade includes an inwardly curved, polyethylene moldboard which is secured in a prestressed and arcuate relationship to a structural frame. The frame includes inwardly curved, vertically extending, transversely spaced brace members and a defined space of predetermined shape exists between the moldboard and the braces for improved snow removal by the blade.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: July 11, 1989
    Assignee: The Louis Berkman Company
    Inventor: James C. Ciula
  • Patent number: 4803790
    Abstract: An improved blade for a snow plow is provided. The blade includes an inwardly curved, polyethylene moldboard which is secured in a prestressed and arcuate relationship to a structural frame. The frame includes inwardly curved, vertically extending, transversely spaced brace members and a defined space of predetermined shape exists between the moldboard and the braces for improved snow removal by the blade.
    Type: Grant
    Filed: March 28, 1988
    Date of Patent: February 14, 1989
    Assignee: The Louis Berkman Company
    Inventor: James C. Ciula
  • Patent number: 4753299
    Abstract: A blade assembly for hard earth road graders has a support frame for attachment to the mouldboard of the road grader and a plurality of evenly spaced picks located in sockets spaced along the lower edge of the support frame. The picks have spigots to releasably locate in the support frame sockets and engage with the support frame to prevent relative rotation between the spigots of the picks and respective sockets. The picks each have a tungsten carbide tile attached to their front face with a straight transverse cutting edge along the lower edge. In use the working face of the picks is perpendicular to a road surface to achieve a shaving action.
    Type: Grant
    Filed: May 2, 1986
    Date of Patent: June 28, 1988
    Inventor: Thomas A. Meyers
  • Patent number: 4731942
    Abstract: A dozer blade of the present invention includes two curved blade sections that are joined at respective inner ends thereof. The blade sections are joined to form a unitary blade exhibiting a concave surface for scraping and removal of snow and the like. The blade sections converge forwardly at the top toward their central juncture such that a top portion of the central juncture is generally positioned forwardly of a bottom portion thereof. Additionally, the top portion of the central juncture is generally positioned lower than outer ends of respective top portions of the blade sections, presenting a winged profile from the front. A divider is positioned along the central juncture from a bottom scraping portion of the blade sections to the top. The divider serves to distribute material being dozed generally equally to either side.
    Type: Grant
    Filed: January 7, 1987
    Date of Patent: March 22, 1988
    Inventor: Ronald D. Eberle
  • Patent number: 4716643
    Abstract: A carbon steel with at least 1% by weight carbon and at least one carbide-forming alloying element such as chromium is forged into a construction machine-tool part for engagement with abrasive material, the forging provides a fiber extension direction which coincides with the principal direction of abrasive action.
    Type: Grant
    Filed: April 30, 1986
    Date of Patent: January 5, 1988
    Assignee: Berchem & Schaberg GmbH
    Inventor: Rutger Berchem
  • Patent number: 4712623
    Abstract: A plug pusher, mounted to a mower of the type having a lift frame, pushes turf core plugs from an aerated turf surface. The plug pusher includes two L-shaped, elongate pusher elements, each having a horizontal first leg and a vertical second leg, mounted to the vehicle for being raised and lowered by the lift frame. The first leg of each pusher element extends forwardly from the second leg and lies on the turf surface so as the vehicle moves the core plugs gather in front of the second leg and on top of the first leg. The pusher elements are configured and are mounted to the mower to permit limited movement relative to the mower and each other to accommodate uneven surfaces.
    Type: Grant
    Filed: March 17, 1986
    Date of Patent: December 15, 1987
    Inventor: Donald G. Martinez
  • Patent number: 4707936
    Abstract: An attachment for a snow plow having a normally vertically-oriented snow plow blade. The attachment is composed of a side plate which is installed at an end of the blade. A brace is installed between the blade and the side plate for preventing lateral displacement of the plate, and the plate is immobily secured in place and aligned with the plow blade to assure proper orientation during use.
    Type: Grant
    Filed: July 21, 1986
    Date of Patent: November 24, 1987
    Inventor: Kenneth Steinhoff
  • Patent number: 4597205
    Abstract: A clamp assembly for mounting a snow plow to the lip of a loader bucket comprises a pair of receiving frames forming laterally extending slots. A ramp surface is disposed at the apex of the slots. Pivot arms mount a clamp engagement members which may be locked position to secure the lip of a loader bucket received in the slots. A snow plow connects with connector arms which are pivotally mounted to the receiving frames.
    Type: Grant
    Filed: May 4, 1984
    Date of Patent: July 1, 1986
    Inventor: William H. Guest
  • Patent number: 4587750
    Abstract: An air scoop arrangement is used to direct air towards a radiator of a vehicle carrying a front mounted snow plow blade. The air scoop includes an air engaging wall and oppositely disposed side walls depending therefrom. The air scoop is mounted on the snow plow blade in an adjustable angular orientation. The air engaging wall is substantially disposed above an upper end of the snow plow blade to engage and direct air towards the vehicle radiator.
    Type: Grant
    Filed: January 10, 1985
    Date of Patent: May 13, 1986
    Inventor: Duane Larson
  • Patent number: 4574502
    Abstract: A plow blade for snow plowing or other plowing applications is constructed prepared from a transparent material to reduce plow weight and to permit the normal lighting of the plow vehicle to be seen through the plow blade, thus eliminating the need for auxiliary lighting. The plow blade is especially suitable for use with small plows, such as those designed for use with small four-wheel drive passenger cars. In the preferred embodiment, a transparent, replaceable plastic plow face member is supported by a light weight frame.
    Type: Grant
    Filed: September 9, 1985
    Date of Patent: March 11, 1986
    Inventor: James R. Blau
  • Patent number: 4546513
    Abstract: An ice scraper and breaker combination comprising a common hand-held blade scraper upon which is mounted, to the back of the body of the scraper, multiple sets of toothed rollers or disks which are used to break up the ice prior to scraping.
    Type: Grant
    Filed: March 22, 1984
    Date of Patent: October 15, 1985
    Inventor: Michael D. Hammond
  • Patent number: 4439939
    Abstract: A snow plow especially suitable for use with small vehicles, such as cars, is disclosed. The snow plow features a hydraulic system for controlling movement of the plow from side to side as well as for elevating the plow. The snow plow of the present invention also includes a coupling system which permits the plow to be quickly coupled to the vehicle for snow plowing and quick removal of the plow when the vehicle is to be used for its conventional purposes. The hydraulic system may be mounted either on the plow support frame or to the subframe assembly which is attached to the underside of the car.
    Type: Grant
    Filed: March 16, 1979
    Date of Patent: April 3, 1984
    Inventor: James R. Blau