Tools Assume Different Angularity For Opposite Draft Patents (Class 172/618)
  • Patent number: 4262752
    Abstract: A plowing implement is disclosed for following and filling wheel tracks created, for example, behind a pair of sprinkler wheel tires, particularly arrangements in which each tire repeatedly traverses the same fixed path. When the track created by the tire is filled with earth by the device of the present invention, plowing or harvesting equipment can cross the path travelled by the wheels without the inconvenience of traversing rough or uneven ruts or tracks which would otherwise be the result.
    Type: Grant
    Filed: May 10, 1979
    Date of Patent: April 21, 1981
    Assignee: K-M-P Pump Company, Inc.
    Inventor: Carl D. Parish
  • Patent number: 4252198
    Abstract: A support member for stationary support from a tractor forward of a ground wheel thereof and an elongated front to rear extending mount has its front end supported from the support member for pivotal movement of the mount between a predetermined rearwardly and downwardly inclined operative position with the rear end at an elevation lower than the support member and a raised inoperative position with the rear end elevated above the aforementioned operative position. An elongated inclined ground engaging and levelling member has its upper end oscillatably supported from the rear end of the mount for free oscillation relative to the mount between a first operative ground engaging limit position with the inclined member rearwardly and downwardly inclined and a second limit position with the inclined member similarly forwardly and downwardly inclined.
    Type: Grant
    Filed: May 21, 1979
    Date of Patent: February 24, 1981
    Inventor: Gary G. Formhals
  • Patent number: 4220211
    Abstract: In a farm harrow, a U-shaped clamp mounts channel-shaped bars to harrow tine supporting shafts. The shafts transversely extend through longitudinal channel-shaped carrier arms and are rotatably mounted therethrough. The bars are mounted within each respective carrier arm channel and introduce, in cooperation with the carrier arm, rotative limits to the respective shafts. The bars allow the rotative limits of the respective shafts to be adjusted accordingly so as to maintain a desired drag angle for the attached harrow teeth during forward harrow movement as well as allowing the harrow to back up without the attached harrow teeth digging in.
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: September 2, 1980
    Assignee: Kent Manufacturing Company, Inc.
    Inventor: Kenneth A. Hake
  • Patent number: 4018255
    Abstract: A tree saw for sawing trees beneath ground level. A saw blade is attached to the front end of a land vehicle which has furrow forming blades on the sides thereof. Movable cutting bits are pivotally attached to the saw blade longitudinal side edges and each bit has two cutting edges. One cutting edge contacts a tree during a forward stroke of the saw blade to cut the tree, and the other cutting edge contacts the tree on the reverse stroke to cut the tree. A hydraulic cylinder connected to the land vehicle moves the blade sideways to cut the tree while the vehicle moves forward and/or rearward.
    Type: Grant
    Filed: October 7, 1975
    Date of Patent: April 19, 1977
    Inventor: Richard E. Diggs
  • Patent number: 3976145
    Abstract: An inverted U-shaped bracket is designed to flexibly mount transverse harrow tine supporting bars for independent movement of each other upon longitudinally extending implement carrier arms to permit drag angle adjustment and ability to back up without digging in.
    Type: Grant
    Filed: March 19, 1975
    Date of Patent: August 24, 1976
    Inventor: Calvin B. Blair