Patents by Inventor Hansjoachim Brunn

Hansjoachim Brunn has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 4455054
    Abstract: A master link for a track chain has two parallel cheeks each split into a pair of mutually complementary parts with mating teeth having undercut flanks which in the tensioned chain urge them into firmer engagement with each other. The teeth have concentric arcuate ridges with a center of curvature lying beyond the axis of a pintle interconnecting the two cheeks at their ends. A track shoe or bottom plate is fastened, with some relative play in the longitudinal direction of the link, by respective bolts to the otherwise unconnected link parts.
    Type: Grant
    Filed: March 19, 1982
    Date of Patent: June 19, 1984
    Assignee: Firma Intertractor Viehmann GmbH & Co.
    Inventor: Hansjoachim Brunn
  • Patent number: 4361364
    Abstract: A track chain has a master link joining together a pair of axis-defining shafts. This master link has a pair of like link parts each mounted on a respective shaft and pivotal about its axis. The link parts have axially confronting inner faces formed with meshing teeth each having an inner flank that faces back toward the respective shaft, that flatly engages the inner flank of the respective tooth of the other link parts, and that forms with the axis of the respective shaft an acute angle. Thus forces urging the shafts radially apart have at these inner flanks have force components urging the parts axially together. No bolts extending axially between the two parts are necessary and the respective track shoe can be bolted to both of the parts of the master link so as to inhibit relative pivoting thereof.
    Type: Grant
    Filed: October 15, 1980
    Date of Patent: November 30, 1982
    Assignee: Firma Intertrac Viehmann & Co.
    Inventor: Hansjoachim Brunn
  • Patent number: 4355988
    Abstract: Track roller for track-laying vehicles such as excavators having a shaft, a roller body rotatably supported thereon, two caps for limiting relative axial movement of shaft and roller body, and end pieces for attaching the track roller to the frame. The shaft has at its center a relatively large diameter, laterally thereof, spaced axially from each other, two relatively wide cylindrical bearing surfaces of larger diameter and, on its sides, ends of reduced diameter with elastic packings at suitable places between the end pieces and the caps and between the caps and the roller body, and an antifriction metal washer arranged between shaft and caps for the feeding of oil to those packings requiring lubrication which is effected from the oil space arranged between the bearing surfaces of the shaft and serves as an oil reservoir.
    Type: Grant
    Filed: June 26, 1980
    Date of Patent: October 26, 1982
    Assignee: Firma Intertractor Viehmann GmbH & Co.
    Inventors: Helmuth Klaus, Heinz Lause, Hansjoachim Brunn
  • Patent number: 4179130
    Abstract: A seal assembly for the pivot of a track of a tracklaying vehicle comprises an annular U-section nonmetallic and elastomeric seal and a metallic load ring received in the groove formed between the sides of the seal which bear in turn on a pair of axially confronting flanks of a pair of relatively pivotal members each belonging to a respective track segment. The metallic load ring has a pair of sides each bearing axially against a respective surface of a respective side of the seal and is received between the sides of the seal. This load ring may be of U-section, or may be constituted by a pair of oppositely dished metal washers.
    Type: Grant
    Filed: June 9, 1978
    Date of Patent: December 18, 1979
    Assignee: Firma Intertrac Viehmann & Co.
    Inventors: Carl Fass, Hansjoachim Brunn