Patents by Inventor Benjamin A. Shader

Benjamin A. Shader 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).

  • Land leveling apparatus with section blade assembly
    Patent number: 4236586
    Abstract: Land leveling apparatus includes a leveling attachment drawn by a tractor with the attachment having pivotally connected side blade sections on a central blade section affording a substantially greater leveling capacity. The side blade sections fold up to reduce width during transport and have a power-driven linkage arrangement for each blade section that moves and positions the blade sections and locks them in the lowered working position, together with upper and lower level adjustments for the side blade sections. A hitch assembly facilitates quick coupling to a crossbar carried by the lower links of the tractor linkage and is pivotally joined to the central blade section so as to facilitate rear tractor wheel movement independently of the scraper blades.
    Type: Grant
    Filed: January 16, 1978
    Date of Patent: December 2, 1980
    Assignee: The Eversman Mfg. Company
    Inventors: Benjamin A. Shader, Bruce H. Mayeda
  • Ground-working apparatus and hitch assembly therefor
    Patent number: 4236587
    Abstract: Land leveling apparatus includes a leveling attachment drawn by a tractor with the attachment having pivotally connected side blade sections on a central blade section affording a substantially greater leveling capacity. The side blade sections fold up to reduce width during transport and have a power-driven linkage arrangement for each blade section that moves and positions the blade sections and locks them in the lowered working position, together with upper and lower level adjustments for the side blade sections. A hitch assembly facilitates quick coupling to a crossbar carried by the lower links of the tractor linkage and is pivotally joined to the central blade section so as to facilitate rear tractor wheel movement independently of the scraper blades.
    Type: Grant
    Filed: April 23, 1979
    Date of Patent: December 2, 1980
    Assignee: The Eversman Mfg. Company
    Inventors: Benjamin A. Shader, Bruce H. Mayeda