Patents Examined by Nathan Mammen
  • Patent number: 6679041
    Abstract: A rotor includes a tube having an outer cross section which is non-circular onto which is assembled one-piece drivers provided with central openings of the same shape and size as the outer circumferential surface of the tube and thereby create a connection, fixed against rotation, between these parts. The rotor is shown used in a crop reducing arrangement of a large round baler.
    Type: Grant
    Filed: June 20, 2002
    Date of Patent: January 20, 2004
    Assignee: Deere & Company
    Inventors: Jean Viaud, Alain Beaudoin, Aurélien Chabassier, Lionel Guiet, Philippe Lucand
  • Patent number: 6675568
    Abstract: A crop harvesting header for mounting on a propulsion vehicle such as a swather tractor or combine harvester includes a main frame structure supporting a crop receiving table with a cutter bar across a front of the table and side drapers on the table for moving the cut crop toward a discharge location of the header. The frame is divided into a central frame portion and two separate wing frame portions each arranged for pivotal movement relative to the central portion about a pivot axis extending in a plane parallel to the forward direction and intersecting the cutter bar so that, as the wing frame portions pivot, the cutter bar flexes in the area adjacent the respective pivot axis over a small angle of the order of 4 degrees to maintain the cutter bar following the ground.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: January 13, 2004
    Assignee: MacDon Industries Ltd.
    Inventors: Roger L. Patterson, Francois R. Talbot
  • Patent number: 6675565
    Abstract: A wheeled attachment for a weed trimmer using string or blades, the wheeled attachment being adjustable along the shaft of the weed trimmer, thus to adjust the height of the trimmer. There is a centered bump wheel beneath the cutter head of the trimmer. Other embodiments employ a single wheel for the attachment assembly to a trimmer's shaft. A weed trimmer has a motor attached in-line on a shaft having a median projecting handle and a terminal handle.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: January 13, 2004
    Inventor: Richard Appleyard
  • Patent number: 6672398
    Abstract: A ballast cleaning machine comprises a machine frame supported on the track by undercarriages for movement in an operating direction. Two vertically and laterally adjustable endless ballast excavating chains are sequentially arranged in a longitudinal direction for excavating ballast from the ballast bed, and a track lifting device mounted on the machine frame. A first conveyor arrangement conveys the ballast excavated by the first endless ballast excavating chain to a first screening installation, a second conveyor arrangement conveys the ballast excavated by the second endless ballast excavating chain to a second screening installation, and a third conveyor arrangement distributes the cleaned ballast to the ballast bed.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: January 6, 2004
    Assignee: Franz Plasser Bahnbaumaschinen-Industriegesellschaft m.b.H.
    Inventors: Josef Theurer, Herbert Wörgötter
  • Patent number: 6666010
    Abstract: A towed farm implement includes a set of auxiliary wheels mounted for elevating the implement to a height which permits the implement to be pulled over and lowered onto a transport trailer or which permits the trailer to be otherwise maneuvered to a loading position beneath the implement. Once the implement is loaded, a pivoted tongue of the implement is positioned so as to be used for the endwise transport of loaded implement. In one embodiment, the auxiliary wheels are mounted on their own lift arms for being swung vertically by an adjusting mechanism that is independent of that use to effect vertical adjustment of the ground wheels. In another embodiment, the wheel support arms of the ground wheels and the lift arms to which the auxiliary wheels are mounted are secured together for being swung by the same adjusting mechanism.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: December 23, 2003
    Assignee: Deere & Company
    Inventors: David Beaufort, Damien Faivre, Heinrich Tepe, Matthew Mentzer
  • Patent number: 6662541
    Abstract: A pine straw rake apparatus and system, and a square drive for the pine straw rake. Typically, the square drive includes three sprockets, one larger than the other two in a triangular and planar arrangement, and a roller chain wrapped around the partial circumferences of the sprockets. A motor is typically connected to the large sprocket. An embodiment of the pine straw rake includes two square drives in an offset and parallel arrangement with a plurality of rake bars connected to corresponding points on the roller chain of each square drive. The rake bars include rake teeth. In the pine straw rake system, a pine straw rake is connected to a carrier that can be self-propelled or can be adapted to be pulled by a tractor or other vehicle. An elevation adjustment can be used to adjust the elevation of the raking action to compensate for uneven ground or other terrain.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: December 16, 2003
    Inventor: James L. Meier
  • Patent number: 6658829
    Abstract: Switch operation mechanism includes a handling lever pivotally connected to a portion of a handle, a generally-fan-shaped actuating member pivotally connected at its pivot portion to the handle in such a manner that the actuating member is pivotable in response to operation, by a human operator, of the handling lever, and a noncontact reed switch for turning on or off a cutter-driving electric motor in accordance with an ON/OFF state of the noncontact reed switch. The ON/OFF state of the noncontact reed switch is determined in accordance with pivoting movement, toward or away from the switch, of the actuating member responsive to the operation of the handling lever. With such arrangements, the switching operations of the operation mechanism can be performed accurately in a stable manner.
    Type: Grant
    Filed: February 26, 2002
    Date of Patent: December 9, 2003
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Takao Kobayashi, Tetsuo Iida, Kenzou Shimada, Norikazu Shimizu
  • Patent number: 6659192
    Abstract: A hydraulic lift device for an attaching device of a tractor which has a hydraulic pressure supply device and a hydraulic tank, comprising for each of two lower steering arms, a double acting hydraulic cylinder having a cylinder housing, a piston rod, a piston with a piston-end piston area and a piston rod-end piston area, as well as a piston-end cylinder chamber and a piston rod-end cylinder chamber. The device further comprises a first switching valve, which has at least three switching positions and four ports. The first port represents a connection to the pressure supply device. The second port represents the connection to the hydraulic tank. The third port represents the connection to the piston-end cylinder chamber of the first hydraulic cylinder and the fourth port represents the connection to the piston rod-end cylinder chamber of the second hydraulic chamber.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: December 9, 2003
    Assignee: GKN Walterscheid GmbH
    Inventors: Herbert Coenen, John Sayer
  • Patent number: 6656038
    Abstract: A combine harvester includes a device for discharging husks, the husk discharging device having at least one fan rotatably mounted in a fan casing, the fan casing having at least one husk discharge opening, a device for chopping straw arranged downstream of the husk discharging device, the straw chopping device having a rotating cutting rotor in a rotor casing for chopping straw, the rotor casing having an inlet for unchopped straw and an outlet for chopped straw, and a control device arranged between the husk discharging device and the straw chopping device, the control device being movable between a first position in which the control device closes the inlet of the rotor to bypass the straw chopping device and a second position in which the inlet of the rotor is open to allow chopping of the straw.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: December 2, 2003
    Assignee: Rekordverken Sweden AB
    Inventor: Sven Johan Persson
  • Patent number: 6655481
    Abstract: A method of fabricating the drill bit includes employing known layered-manufacturing techniques to fabricate the bit crown, positioning a bit gage mold adjacent the bit crown, and disposing a core material within an interior of the bit crown and a cavity of the bit gage mold. A mold that may be employed to fabricate the drill bit includes an initially conforming mold region, in which the prefabricated bit crown may be disposed, and a second, substantially rigid mold region including a cavity to define the gage of the drill bit. Preferably, the conforming mold region is formed of a nonwettable, granular material.
    Type: Grant
    Filed: June 25, 2002
    Date of Patent: December 2, 2003
    Assignee: Baker Hughes Incorporated
    Inventors: Sidney L. Findley, Trent N. Butcher, Gordon A. Tibbits
  • Patent number: 6655120
    Abstract: A crop lifter for a harvesting machine reaping system with a bed plate (1) and projecting reaping fingers (2) has an elastically bendable support bar (5) with a first end (6) and a second end (7). The first end (6) is adapted to be retained on the bed plate (1). A grain lifter is connected to the second end (7) of the support bar (5). A holder (10), which has legs (15, 16), projects from the face of the support bar (5) facing the grain lifter (8). The holder (10) is adapted to receive the reaping finger (2) between the legs (15, 16). A holding mechanism is adapted to support the reaping finger (2) in a direction towards the support bar (5). The support bar (5) includes an area with a bend (13), which opposes the portion adapted to receive the reaping finger (2) taken up by the holder (10). The portions (18, 19) on both sides of the bend 13 enclose an angle opening towards the grain lifter (8).
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: December 2, 2003
    Assignee: Gebr. Schumacher
    Inventors: Gustav Schumacher, Friedrich-Wilhelm Schumacher
  • Patent number: 6655121
    Abstract: A round baler for forming round bales of crop material includes a crop pickup which feeds crop material rearwardly toward a bale-forming chamber defined by a series of rollers in combination with a bale-forming section of a series of side-by-side baler belts. The series of rollers include front and rear floor rollers which rotate in the same direction, as well as an upper stripping roller and a powered feed roller. The powered feed roller cooperates with the front floor roller to define a crop inlet, and the feed roller and the front floor roller aggressively feed crop material into the bale-forming chamber. The front and rear floor rollers cooperate with the bale-forming section of the baler belts and the upper stripping roller to define an open initial bale-forming chamber. As the bale grows, the bale-forming section of the belts expands and the bale is supported by the rear floor roller without support from the front floor roller.
    Type: Grant
    Filed: August 10, 2000
    Date of Patent: December 2, 2003
    Assignee: Gehl Company
    Inventors: Kim P. Viesselmann, David William Tulloch, Graeme Hugh Tulloch
  • Patent number: 6651418
    Abstract: A round baler having a frame assembly, comprising: (a) a first frame assembly; (b) a pickup assembly comprising a pickup and a auger assembly integrally mounted on the first frame assembly to form a pickup module; (c) a second frame assembly connected to the first frame assembly; and (d) a conveyor module selected from the group consisting of a stuffer module and a rotor module, wherein each conveyor module comprises a conveyor mounted on the second frame assembly. The modular structure of the frame assembly facilitates manufacture of several diverse types of product balers while minimizing the complexity of the assembly line process.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: November 25, 2003
    Assignee: New Holland North America, Inc.
    Inventors: John R. McClure, William Dale Hotaling, Fred M. Horchler
  • Patent number: 6651412
    Abstract: A drive system for the auger of a crop-harvesting header that includes a slip clutch to slow or stop auger rotation upon encountering a slug or foreign object of sufficient size, and pawls on the drive sprocket that engage a ratchet wheel on the auger drive shaft when the drive is reversed to provide positive power to the auger in reverse to eject the obstruction.
    Type: Grant
    Filed: October 29, 2002
    Date of Patent: November 25, 2003
    Assignee: New Holland North America, Inc.
    Inventors: Randall L. Sierk, Anthony F. Diederich, Jr., Wayne D. Thaxton
  • Patent number: 6651413
    Abstract: Multiple belt mule drive apparatus and systems for use with ground maintenance vehicles are provided. The apparatus may include two endless belts each engageable with a drive sheave of a prime mover and a driven sheave of a cutting deck. Each drive belt may further contact a guide pulley and an idler pulley on a tension side and a slack side of the belt, respectively. In one embodiment, the drive sheave has an axis generally parallel to a longitudinal axis of the vehicle. Preferably, the guide pulley and the idler pulley associated with the first endless belt are, when the vehicle is in an operating configuration, located on a first side of a vertical plane passing through the drive sheave axis, while the guide pulley and idler pulley associated with the second endless belt are located on a second side.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: November 25, 2003
    Assignee: Exmark Manufacturing Company, Incorporated
    Inventor: Clark S. Papke
  • Patent number: 6647648
    Abstract: A bucket tooth capable of preventing a bolt from being loosened during operation is provided. In order to allow the bucket tooth to generate a resilient return force after attachment, a warp is caused by resilient deformation so that a face on the bucket lip side becomes a concave face. In addition, a spot facing portion is formed around a bolt hole into which a fastening bolt is inserted, on the side facing the bucket lip.
    Type: Grant
    Filed: February 11, 2002
    Date of Patent: November 18, 2003
    Assignee: Komatsu Ltd.
    Inventors: Masaharu Amano, Kazuhide Okawa
  • Patent number: 6644225
    Abstract: A pressure control system is configured to precisely tune positive air pressure or vacuum to pneumatic seed meters that are located along a pneumatic metering manifold. The system includes pressure control valves pneumatically located at plural seed meters that adjust the air pressure or vacuum at the seed meters. The system can utilize feedback pressure signals from pressure sensors at each meter to equalize positive air pressure or vacuum at the seed meters to ensure consistent row-to-row seed populations.
    Type: Grant
    Filed: January 17, 2002
    Date of Patent: November 11, 2003
    Assignee: Deere & Company
    Inventor: Miles R. Keaton
  • Patent number: 6644004
    Abstract: The mower includes a frame which is supported for movement upon a plurality of ground engaging wheels and upon which are supported a motor generator set, an internal combustion motor and a plurality of reel lawn mowers. The motor generator set provides electrical energy for electric motors that drive the reel type lawn mowers. A housing encloses the internal combustion motor and motor generator set and utilizes a combination of passive noise abatement and active noise abatement to reduce noise generated within the interior of the housing. The passive noise abatement is provided at plurality of locations around the motor generator set within the housing.
    Type: Grant
    Filed: August 5, 2002
    Date of Patent: November 11, 2003
    Assignee: Textron Inc.
    Inventors: Kirk W Reimers, Dammika Weeratunga
  • Patent number: 6644005
    Abstract: An overload and overfill protection system for a round baler includes a selectively engageable drive mechanism located between a rotary input member of the baler and an input driven member, such as a sprocket, which drives a pickup mechanism forming a part of the round baler. The selectively engageable drive mechanism includes a fixed drive member mounted to the rotary input member, and a shiftable engagement member mounted to the sprocket for movement between an engaged position for transferring power to the pickup mechanism, and a disengaged position in which power from the rotary input member is not transferred to the sprocket. The fixed drive member is in the form of a shear bolt, which is sheared by an overload force applied to the engagement member when the pickup mechanism is overloaded so as to disable the pickup mechanism. The overfill protection system is in the form of a clutching mechanism interconnected between a movable member of the baler, e.g.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: November 11, 2003
    Assignee: Gehl Company
    Inventors: Scott V. Grahl, Kim P. Viesselmann
  • Patent number: 6644224
    Abstract: An apparatus for preparing soil for the placement therein of at least one of seed and fertilizer. A frame is provided with there being first structure on the frame for penetrating the soil to create an opening for at least one of seed and fertilizer as the frame is advanced in a travel direction. A second structure is provided on the frame at least partially downstream of the first structure for at least one of a) stripping soil clods from the first structure and b) loosening soil downstream of the first structure.
    Type: Grant
    Filed: June 8, 1993
    Date of Patent: November 11, 2003
    Assignee: Dawn Equipment Company
    Inventor: James H. Bassett