Bars Pivoted About Vertical Axis Patents (Class 172/616)
  • Patent number: 6851484
    Abstract: A novel and practical track-filling apparatus for smoothing rutted soil formed by the repeated passage of wheels. This apparatus includes a frame, a system for attaching the frame to a tractor, and a soil moving blade assembly mounted to the frame. This blade assembly has laterally disposed and spaced apart left and right blades. A system for adjusting the included blade angle between these blades is also provided. This system for adjusting includes a single blade adjusting hydraulic ram that is operatively connected to the blades via a novel yet simple and reliable linkage assembly. Additionally, systems for lifting and tilting the apparatus optimizes operation of this track-filling apparatus over irregular and differing terrain.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: February 8, 2005
    Inventor: Layne Klompien
  • Patent number: 5787993
    Abstract: Many openers are mounted on the lateral tool-bar of a farm implement. For crop and fertilizer change, different spacings along the tool-bar are required for the openers. Multi-position tool-mounting structures are provided, for each opener as required. Each has a pivoting arm, which may be locked in one of several positions. The locked-in position of each arm may be changed manually, and independently of the other tools, upon manually releasing a biassed locking pin. Adjustment to cater to the next application is light, quick, simple, and accurate.
    Type: Grant
    Filed: April 2, 1996
    Date of Patent: August 4, 1998
    Assignee: Flexi-Coil Ltd.
    Inventors: David Robert Hundeby, Dean Jay Mayerle