By Extensible Link Between Load Engager And Swinging Support Patents (Class 414/715)
  • Patent number: 10392773
    Abstract: A four-bar assembly for a linkage assembly includes an arm pivot pin pivotally coupling a front arm with a rear arm of the linkage assembly. The arm pivot pin forms a first vertex of the four-bar assembly. A distal end of the front arm forms a second vertex of the four-bar assembly. The four-bar assembly includes a tilt cylinder having a first end and a second end. The first end of the tilt cylinder is pivotally coupled to a bracket angularly extending from the rear arm at a first end pin. The first end pin forms a third vertex of the four-bar assembly and the second end of the tilt cylinder forms a fourth vertex of the four-bar assembly respectively. An angle formed at the arm pivot pin and defined between the rear arm and the bracket lies between 0 and 90 degrees.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: August 27, 2019
    Assignee: Caterpillar SARL
    Inventor: Gerald Michael Fuerst
  • Patent number: 10293683
    Abstract: An excavator has a unitary fluids tank formed from moldable cross linked high density polyethylene. The fluids tank has a compartment for hydraulic fluid and a compartment for power unit fuel. The compartments are separated by a coextensive integral wall providing an insulating barrier are formed from a polyethylene foam providing an insulating barrier between the compartments.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: May 21, 2019
    Assignee: CNH Industrial America LLC
    Inventors: Davide Caporale, Mauro Loprevite
  • Patent number: 9248736
    Abstract: A system and attendant structural components for incorporating an alternate fuel supply, such as of the type used in combination with a conventional distillate fuel, to power a heavy duty industrial vehicle, such as a mine haul dump truck. The system and attendant structure includes a mounting assembly structured for containment and support of the alternate fuel and a containment area disposed on the vehicle and structured and dimensioned to retain the mounting assembly therein. The containment area and the mounting assembly are disposed in laterally adjacent, exposed relation to an operator area of the mine haul truck, wherein the mounting assembly and the containment area are cooperatively disposed and structured to facilitate storage of the alternate fuel and operative communication and distribution thereof with the powering engine of the mine haul vehicle.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: February 2, 2016
    Assignee: Gaseous Fuel Systems, Corp.
    Inventor: Jason Green
  • Patent number: 9057179
    Abstract: A tractor loader attachment system for efficiently attaching and removing a loader upon a tractor. The tractor loader attachment system generally includes a pivot bracket attached to a loader mounting pocket, an engaging member pivotally connected to the pivot bracket, an actuator attached to a first end of the engaging member and to the tractor frame, wherein movement of the actuator pivots the engaging member so that a hooked end of the engaging member engages or releases a shaft attached to the loader frame to selectively retain the loader frame attached to the tractor vehicle.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: June 16, 2015
    Inventor: Bobby L. Kubas
  • Publication number: 20140119869
    Abstract: A bucket for a machine, such as a wheel loader or track loader is disclosed. The bucket includes a bottom section connected to a top section by a middle section. The top, bottom and middle sections are connected to a pair of side walls. The bottom section includes a bottom distal edge and the top section includes a top distal edge. A rear side of the bucket includes a lower ear for receiving a lower pin. The lower pin connects the lower ear and the bucket to a lower linkage. A first distance between the lower pin and the bottom distal edge has a first length and a second distance between the lower pin and the top distal edge has a second length. A ratio of the first and second length, referred to as a loading index (LI) ranges from greater than 0.83 to less than 0.95.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 1, 2014
    Applicant: CATERPILLAR INC.
    Inventors: Sylvain France, Jamel Necib
  • Publication number: 20140010623
    Abstract: A lift arm cross member may connect a tilt lever support to a pair of lift arms. The lift arm cross member may have a top plate with a generally convex outer surface as the outer surface extends from a first end edge to a second end edge, and a bottom plate having first and second end edges, a first planar portion extending from the second end edge, and a curved portion extending from the first planar portion opposite the second end edge. The first end edge of the bottom plate may be connected to an inner surface of the top plate and the second end edge of the first plate may be connected to an inner surface of the bottom plate. A buffer plate may be provided within the lift arm cross member and extend between the inner surfaces of the top and bottom plates.
    Type: Application
    Filed: July 6, 2012
    Publication date: January 9, 2014
    Applicant: CATERPILLAR, INC.
    Inventors: Xiaoming Tan, Michael Scott Sekulich, Anand Ramchandra Mijar
  • Publication number: 20130078070
    Abstract: A scoop assembly is disclosed for a wheel dozer. The scoop assembly includes a frame that includes right and left lift arms that may be coupled together by a distal cross beam. The lift arms include proximal portions that extend between the two cross beams and a distal hook-shaped portion that extends forward beyond the distal cross beam. The distal hook-shaped portions pivotally connect to the bucket. The distal cross beam provides a place for the location of a bracket that supports a single dump cylinder that extends upward into a central pocket disposed in the back of the bucket. The dump cylinder is protected from debris due to its raised position and placement inside a centralized pocket that does not experiment the flow of debris materials.
    Type: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: CATERPILLAR, INC.
    Inventor: Michael P. May
  • Publication number: 20130067779
    Abstract: A machine bucket assembly includes a bucket having a top section, a bottom section, and a curved middle section. The bucket assembly may also include a kinematic reaction point about which the bucket is configured to rotate. A loadability index of the bucket may be between approximately 0.95 and 1.05. The loadability index is a ratio of a distance between the kinematic reaction point and a tip of the bottom section and a distance between the kinematic reaction point and a tip of the top section.
    Type: Application
    Filed: November 15, 2012
    Publication date: March 21, 2013
    Applicant: Caterpillar Inc.
    Inventor: Caterpillar Inc.
  • Publication number: 20120128456
    Abstract: An improved Z-bar linkage for wheel loader machines for maneuvering an implement such as a bucket or pallet forks may include lift arms pivotally connected between an end frame of the machine and the implement, a tilt link pivotally connected between the implement and a tilt lever that is pivotally connected between the tilt link and the lift arms. Lift cylinders may rotate the lift arms to raise and lower the implement, and a tilt cylinder may drive the tilt lever and tilt link to rotate the implement between a dump position and a racked position. Ratios of the lengths of these kinematic elements are provided such that the good performance with one implement, such as bucket, does not result in poor performance with another implement, such as the pallet forks.
    Type: Application
    Filed: November 18, 2010
    Publication date: May 24, 2012
    Inventors: Joel R. Grimes, Wayne E. Harshberger, Jason J. Hagedorn, Jia X. Zhao, Susan Green, Jay H. Renfrow
  • Patent number: 8047759
    Abstract: A manual forklift for lifting, maneuvering, and arranging palleted freight, comprising an extensible wheeled base, a steering handle, a mast, and a boom with a descending standard secured to a support frame carriage and forward extending tines. Hydraulic jack cylinders joining the mast to the boom and the boom to the descending standard in concert with hinge joints connecting the mast to the boom and the boom to the descending standard allow the tines to be manipulated forwardly or backwardly, raised or lowered, and tilted upwardly or downwardly relative to the mast and base, enabling the user to transfer palleted freight engaged by the tines between surfaces with differing heights and angles and across longitudinal spaces. Castered wheels affixed to the base further enable freight to be moved multi-directionally, including laterally leftward or rightward.
    Type: Grant
    Filed: March 6, 2009
    Date of Patent: November 1, 2011
    Assignee: Wazee Group, Inc.
    Inventor: Jim L. Ladd
  • Patent number: 7730648
    Abstract: A construction vehicle of an all-round traverse type is configured such that when working by using one working machine of an excavating machine and a loading machine mounted on front and rear sides of a cabin, the working machine in use can perform operation without influence from the other working machine in an unused state, as the excavating machine and the loading machine are configured to be folded and retracted under an unused state into an orientation of substantially fitting along respective surfaces of the front side and the rear side of the cabin. A cabin 3 is mounted on a turn frame 2 that makes an all-round traverse and is mounted on a vehicle body 1, and a mounting bracket 40 is provided on one end of the front end and the rear end of the turn frame 2. An excavator 4 is mounted in front of the cabin 3 by mounting and connecting the excavator 4 to the mounting bracket 40.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: June 8, 2010
    Inventor: Hiroshi Fukaya
  • Patent number: 5890864
    Abstract: A load lifting scissors lift assembly, as an attachment for the three-point-hitch of a farm tractor, which utilizes a scissors-action, hinged, expandable linkage. The Heavy-duty Hay Scissors Lift assembly contains one pair of crossed lever arms, each connecting to a vertical load engaging structure (in the case described, a hay spike arrangement), the first through intermediate connection to a variable length middle arm, or third arm, and the second through direct connection to the lowest point of the load engaging structure. The assembly is constructed to multiply the lift of the tractor's lift arms. The expanding linkage is capable of lifting standard six-foot high round bales of hay or other material, outwards and upwards and placing one bale on top of another. The Heavy-duty Hay Scissors Lift is constructed without the use of additional hydraulics, to minimize the cost of materials, complexity, maintenance, and redundancy (a tractor having lift arms already has hydraulics).
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: April 6, 1999
    Inventor: Willie Davis Sloan
  • Patent number: 5709523
    Abstract: A material handling lift having a movable frame, a mast mounted at one end to a shuttle assembly movable on the frame, and a load handling assembly attached to the mast by means of two extending arm members. The frame comprises two longitudinal C-shaped side rails in which the shuttle assembly can be reciprocated by wheels which engage the inner surfaces of the rails. The sections of the wheels which engage the rails are arched to prevent the lift from tipping when the lift is moving in a sloped direction. Guide wheels mounted on the shuttle assembly rotate across the surfaces of the sides of the upper rails, thereby stabilizing movement of the shuttle assembly along the rails. The shuttle assembly can be sustained in any position along the rails by operation of a hand-operated shuttle brake.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 20, 1998
    Inventor: Emmet P. Ware
  • Patent number: 5377376
    Abstract: A surface cleaning machine (10) is disclosed in the preferred form as a combination sweeping-scrubbing apparatus including a sweeping brush (18) for sweeping debris into a hopper (20) and a one piece squeegee (112) for picking up solution after four staggered, disc brushes (122). The squeegee (112) is U-shaped having a longitudinal extent greater than that of the disc brushes (122) located intermediate the legs (124) of the squeegee (112). The drive wheel (16) is located in front of the disc brushes (122), the squeegee (112) and the solution applying means (128). The squeegee (112) is raised and lowered relative to the frame (12) by an actuator (104) which pivots an L-shaped member (94), the leg (96) of which abuts against and pivots a lever (84) interconnected to the mount (62) for the squeegee (112) by a turnbuckle (88). The hopper (20) is raised and simultaneously tilted by a single cylinder (30 ) which pivots the upper arm (24) of a parallelogram including a lower arm (36).
    Type: Grant
    Filed: August 23, 1993
    Date of Patent: January 3, 1995
    Assignee: Advance Machine Company
    Inventors: David Wood, Randy Brunn
  • Patent number: 5226777
    Abstract: Apparatus and system for loading and unloading a load onto and from a load carrying device mounted on a vehicle which is capable of producing a significant lift of the load and changing the angular position of the load at different load elevations. A bellcrank supports the load carrying device. A first pin pivotally mounts the bellcrank to the vehicle. A second pin pivotally mounts the load carrying device to the bellcrank. A first power device pivots the bellcrank around the first pin and a second power device pivots the load carrying device around the second pin.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: July 13, 1993
    Assignee: Simmons-Rand Company
    Inventor: Vladimir Radev
  • Patent number: 5195863
    Abstract: This loader-excavator has a boom divided into an inner boom (9) and a main boom (18), the latter being articulated at the free end (17) of the inner boom. The inner boom is pivotally mounted near the front end of the turntable (3) of the machine, and can assume a position inclined to the rear, in which its free end lies to the rear of the axis of the turntable and is above it. In this position, the main boom can be folded onto the inner boom and it then extended horizontally forward, its front end being substantially above the front part of the machine. In this condition, the arm (24) bearing the tool can be directed vertically downward. This facilitates the work as a loader. For work as an excavator, the main boom is unfolded essentially to be an extension of the inner boom and it is locked relative to the latter.
    Type: Grant
    Filed: October 10, 1991
    Date of Patent: March 23, 1993
    Inventor: Pierre J. De Pingon
  • Patent number: 5193295
    Abstract: A system for shifting won minerals with a continuous conveyor such as a belt or chain conveyor has a machine frame and a shovel pivotably coupled to booms. The booms are aligned in a vertically pivotable manner with a rocker arm that is pivotably coupled to the front end of the machine frame. The booms and the rocker arm are connected to the front end of the machine frame by hydraulic cylinder units. The loading shovel is swivel-mounted about at least one essentially horizontal axle to dump the debris into a feed chute provided at the front end area of the continuous conveyor. The rocker arm has at least one hydraulic cylinder unit supported at the front end of the machine frame and behind the corresponding rocker arm support to provide a compact design with improved load-bearing capacity and a reduced danger of tipping.
    Type: Grant
    Filed: October 2, 1991
    Date of Patent: March 16, 1993
    Assignee: Voest-Alpine Bergtechnik Gesellschaft m.b.H.
    Inventors: Helmut Gradenegger, Eduard Krivec, Egmont Lammer
  • Patent number: 5150999
    Abstract: Apparatus for lifting round bales of hay including a pair of arms which project forwardly from the front end of a tractor. These arms support a pivotal structure which includes a spear for impaling a round bale of hay and thereafter tilting the bale up off the ground. Another embodiment includes a device similarly attached to the forward end of a tractor; however, the latter embodiment involves a spear which can be elevated with respect to the ground while remaining parallel to the ground. A third embodiment involves a bale lifting device which is similar to the second embodiment but which can be attached to a conventional 3-point hitch on a tractor or to the rear of a flatbed trailer. A still further embodiment includes a square frame supported from a tractor by means of a 3-point hitch connection. The square frame rotatably supports an elongated rectangular frame which has impaling spears at the opposite ends thereof.
    Type: Grant
    Filed: October 9, 1990
    Date of Patent: September 29, 1992
    Inventor: Joe W. Dugan
  • Patent number: 5088213
    Abstract: A front hoe attachment for a loader includes a connecting frame which is capable of being attached to the manipulating mechanism at the front end of a loader such as a tractor. The connecting frame has a bucket secured to its outer end so that the bucket can be manipulated by use of the loader to perform various operations such as digging operations.
    Type: Grant
    Filed: February 19, 1991
    Date of Patent: February 18, 1992
    Inventors: Anthony J. Raimondo, Madeline D. Raimondo
  • Patent number: 5015148
    Abstract: A mounting frame for use with a tractor loader is disclosed wherein the main support arms extend generally linearly from the rear pivot mounting thereof with the tractor to the front pivot mounting with the loader bucket. The thickest portion of the main support arm is positioned immediately rearwardly of the transverse torque tube interconnecting the laterally spaced main support arms. Each main support arm decreases in size from this intermediate portion toward the forward and rearward pivots. The main support arm is generally symmetrical about a straight line interconnecting the forward and rearward pivots.
    Type: Grant
    Filed: August 21, 1990
    Date of Patent: May 14, 1991
    Assignee: Ford New Holland, Inc.
    Inventors: Russell I. Johnson, Daniel D. Radke, Garry L. Ball
  • Patent number: 4945663
    Abstract: Planting mounds for afforestation purposes and the like are formed by an apparatus wherein a device having at least one mound-forming and compacting body is provided on a movable support arm or boom of a carrier vehicle adapted to be driven along the ground. The body has an elongate, longitudinally concave soil-pushing front surface of shape and dimensions suitable to define the upper surface of a planting mound, and preferably has digging teeth or the like at its lower forward edge. The body is supported for pivotal movement relative to the arm or boom and may be pivoted by a piston-cylinder assembly or the like. For mound formation, the body is placed in a digging position with the soil-pushing surface facing in a first direction substantially parallel to the ground.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: August 7, 1990
    Inventor: Aston Nilsson
  • Patent number: 4884940
    Abstract: A connecting link for use on a bucket loader mountable on a tractor to control the pivotal movement of the bucket relative to the mounting frame to which the bucket is attached is disclosed wherein first and second members are telescopically associated to permit a varying of the effective length of the connecting link. A first pin is engageable through a first set of alignable holes through the first and second members to fix the telescopic position of the connecting link in an operative position. The first pin has a size sufficient to withstand the operating forces exerted on the connecting link during operation of the bucket. A second pin is engageable with the first and second members through a second set of alignable holes therethrough to shorten the effective length of the connecting link to a transport position and permit a rollback of the bucket for transport.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: December 5, 1989
    Assignee: Ford New Holland, Inc.
    Inventors: John O. Steinkamp, Garry L. Ball, Daniel D. Radke
  • Patent number: 4725189
    Abstract: A loader bucket comprising a bucket support frame which is connected to the three-point hitch assembly located at the rear of a conventional tractor. The bucket support frame comprises a pair of side frame members which are pivotally connected to the rearward ends of the lower links arms of the hitch assembly. The frame also includes a vertically disposed post which has a bracket pivotally mounted at the upper end thereof. The forward end of the bracket is pivotally secured to the rearward end of the upper link arm of the hitch assembly. A pair of hydraulic cylinders are pivotally connected at one end thereof to the rearward end of the bracket and have their other ends operatively connected to a horizontally disposed shaft which is rotatably mounted on the bucket support frame.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: February 16, 1988
    Assignee: Westendorf Mfg. Co., Inc.
    Inventors: Joseph W. Langenfeld, Neal W. Westendorf
  • Patent number: 4636133
    Abstract: A heavy load lifting machine for elevating heavy loads off of and transporting heavy loads along the ground is disclosed. The machine includes a load lifting linkage having a special configuration for the linkage arms and lift rams to accommodate lifting objects in the range of forty tons or more and transporting the objects over the ground with minimal sway of the object during transport.
    Type: Grant
    Filed: January 23, 1985
    Date of Patent: January 13, 1987
    Assignee: Crothers Limited
    Inventor: Markus J. Hess
  • Patent number: 4385863
    Abstract: A seat interlock mechanism for a skid-steer loader is disclosed wherein the boom structure can be rendered inoperable for vertical movement if the operator leaves his seat. The hydraulic circuit for powering the hydraulic cylinders, which move the boom structure in a vertical direction, includes a solenoid valve that is capable of stopping the flow of fluid through the hydraulic circuit and, thereby, prevent the boom structure from vertically moving. An improved seat frame structure, incorporating a switch which senses the presence of an operator on the seat, provides greater sensitivity for the presence of the operator, so that the switch can control the solenoid valve to stop or permit the flow of fluid through the circuit. The improved seat frame includes a first member mounted to the loader frame and a second member biased away from the first member by a spring positioned beneath the center of gravity of that portion of the seat being biased upwardly by the spring.
    Type: Grant
    Filed: May 13, 1981
    Date of Patent: May 31, 1983
    Assignee: Sperry Corporation
    Inventor: Ray C. Minor
  • Patent number: 4381900
    Abstract: A self propelled reaching type mobile loader includes a mobile vehicle which has an articulated body and frame and self leveling wheels. The front portion has a supporting frame with a cab enclosing the front end thereof and has a suitable motor means for operating the vehicle and loading components. A pair of pivot supports are laterally spaced on the frame adjacent the top of the cab and support a pair of pivoted supporting lever members each having a pair of arms rigidly extending at an angle to each other. One of the arms on each of the supporting lever members is supported for pivotal movement on the pivot supports and has an initial position extending along the top of the cab with the angularly extending arm extending substantially vertically in front of the cab. A pair of supporting boom members are supported on each of the angularly extending arms of the supporting lever members and movable longitudinally thereof. A load carrying carriage is supported on the lower ends of the boom members.
    Type: Grant
    Filed: February 12, 1981
    Date of Patent: May 3, 1983
    Inventor: Glen N. Schlottman
  • Patent number: 4306832
    Abstract: The invention provides material handling apparatus in the form of a lift arm assembly integratable with or releasably applicable to farm tractors or like relatively small, lightweight vehicles for front end loading and leveling having extended outreach capabilities. An extensible carriage which mounts stably and for guided reciprocable movement on the lift arms carries a material engaging device so interrelated as to enable an advantageous application of forces therethrough, both to break material free from a mass at ground level and to reorient the placement of material at elevated levels. In certain embodiments the material engaging device is tiltable in response and/or correspondence with movements of the carriage. In a preferred from of embodiment of the invention, a guided movement of the material engaging device and the outreach and tilting thereof is sensitively controlled by separate connectors extending thereto from both the lift arms and the carriage.
    Type: Grant
    Filed: April 30, 1979
    Date of Patent: December 22, 1981
    Inventor: Gregory Schmiesing
  • Patent number: 4268215
    Abstract: Two rotary air valves are mounted on the bucket control levers of an end loader and are operable to control the shifting of the loader's transmission. One of the air valves is used to operate a cylinder connected to the forward and reverse shift valves of the end loader power shift transmission while the other rotary air valve operates a pneumatic cylinder connected to the range selector valves of the power shift transmission. In this manner, both the bucket control functions as well as the forward and reverse movement of the end loader may be totally controlled by one hand of the operator leaving the other hand free to remain on the steering wheel at all times.
    Type: Grant
    Filed: February 6, 1979
    Date of Patent: May 19, 1981
    Inventors: Martin J. Spicer, Howard G. Spicer
  • Patent number: 4262950
    Abstract: A device adapted to be suspended from a crane for lifting and laterally shifting a load including a frame having a fork lift attached thereto for carrying the load and a counterweight means to compensate for the weight of the load and to selectively position the fork lift in a tilted condition.
    Type: Grant
    Filed: January 8, 1979
    Date of Patent: April 21, 1981
    Assignee: Paper Converting Machine Company
    Inventor: Robert M. Ellingson
  • Patent number: 4175907
    Abstract: A shovel linkage for a hydraulic excavator or the like has spaced parallel boom link rails which are coplanar with associated spaced parallel stick link rails and pivotedly connected thereto by means of pivot joints provided on the ends thereof.Bucket stops are provided on a bucket attached to the stick and are arranged to contact the centers of the stick rails for greater strength.
    Type: Grant
    Filed: July 7, 1977
    Date of Patent: November 27, 1979
    Assignee: Caterpillar Tractor Co.
    Inventors: Harvey A. Knell, Stephen H. Gill
  • Patent number: 4143783
    Abstract: A reverse linkage loader bucket arm with an enclosed cylinder assembly and wherein a loader bucket is pivotally mounted on the arm and the cylinder assembly induces the pivotal action. The lift or support arm for the bucket is hollow along its longitudinal axis and the cylinder assembly is mounted within the hollow arm and projects through an open end thereof to pivotally connect with the bucket and the point of pivotal connection is to the side of the pivotal connection of the arm in the bucket away from the bucket. The cylinder fluid lines are also disposed within the hollow boom or lift arm, and thus the cylinder assembly and the lines or hoses are enclosed and thereby protected and arranged for reverse linkage connection relative to the arm and the bucket.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: March 13, 1979
    Assignee: J. I. Case Company
    Inventors: Gary L. Cochran, Charles D. Wilson