The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 05, 1977
Filed:
Jul. 07, 1975
Daniel E Kinnison, Kimball, NB (US);
Other;
Abstract
Disclosed is a digger attachment for a tractor including a frame having at one end of a frame arm a three-point mount for securing the digger to the tractor. The opposite end of the frame arm supports an auger for pivotal movement about a transverse axis. Attached to the head of the auger is a shaft which extends through a bracket mounted on the frame arm. Coil springs are provided about the shaft on opposite sides of the bracket with the opposite ends of the springs butting against nuts threaded on the shaft. To utilize the digger, the nuts on the opposite ends of the shaft are threaded such that the springs displace the shaft in a manner displacing the auger about its transverse pivotal axis such that its rotational axis is slightly rearwardly inclined relative to a vertical through the auger's pivot. That is, the nuts are respectively threaded and unthreaded to achieve the desired inclination of the auger with the spring forces acting on the shaft in balance. Downward movement of the frame arm thus causes the rotational axis of the auger blade to move toward a true vertical position about its transverse pivotal axis and against the bias of the springs whereby a vertical hole is assured. Upon removal of the auger from the hole, the springs serve to return the auger to its adjusted, slightly rearwardly inclined, position whereby the auger is ready to dig another vertical hole.