Patents by Inventor Daniel R. Martindale

Daniel R. Martindale 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: 8327947
    Abstract: A tillage machine includes a plurality of front tines and a plurality of rear tines rotatably secured to a frame which is pulled by a tractor in a direction of travel. The front tines are aligned with the rear tines along the direction of travel whereby the front tines penetrate the soil and create tine soil penetrations, and the rear tines enter the soil in the penetrations created by the front tines. Preferably, the front tines are also rotatably secured to the frame in a clockwise or counter-clockwise angle about a front pivot point. The rear tines are rotatably secured to the frame in a clockwise of counter-clockwise angle about a rear pivot point opposite the front tines angle. The front tines penetrate and fracture the soil in one direction and the rear tines enter the soil penetrations created by the front tines and fracture the soil in another direction.
    Type: Grant
    Filed: December 27, 2010
    Date of Patent: December 11, 2012
    Inventors: James R. Martindale, Daniel R. Martindale
  • Publication number: 20110155401
    Abstract: This tillage machine disclosure utilizes the original Huxley (1983) patented aerator tine geometry with special features which are different from those patented by Martindale (U.S. Pat. No. 6,854,525). These features are disclosed here in a series of different arrangements within machine frame designs. There are two different embodiments of the enhanced tine design. The frame designs disclosed protect the farmer from maintenance neglect and unintentional misuse or oversight of the tine technology limitations which have led to inconsistent performance in previous framing presentations. These designs result in greatly reduced machine lifetime costs of soil-engaging tines. A wide range of power requirements and concomitant amounts of soil fracturing in relation to the number of tine perforations is achieved to effectively reduce soil erosion potential as a result of the tillage operations.
    Type: Application
    Filed: December 27, 2010
    Publication date: June 30, 2011
    Inventors: James R. Martindale, Daniel R. Martindale