Patent · US Expired

Rotary ground breaker, soil pulverizer and pasture renovator

US4020907A · kind A · utility

42Cited by
4References
1Claims
0Family size

Assignee

Inventor

Key dates

Filing dateAug 27, 1975
Grant dateMay 3, 1977
Priority date
Expiry dateAug 27, 1995

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA01B35/16
  • WIPO fieldOther special machines
  • WIPO sectorMechanical engineering

Abstract

A rotary soil conditioner in the form of a cylinder fitted with pointed projecting curved tines. The tines each project to a distance from the cylinder surface that is approximately one-half the cylinder radius and are each curved in the direction of rotation of the cylinder with a radius of curvature of one-third the cylinder diameter, and with the center of the arc of each tine being on the surface of the cylinder. Each tine is preferably formed with an oval cross-section that narrows from the tine root to the tine tip, with the long axis of the oval cross-section oriented in the direction of rotation of the cylinder.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.