Patents Assigned to Esmay Products, Inc.
  • Patent number: 4079788
    Abstract: A hand-pushable, tilling device includes a main frame carrying ground-engaging front and rear wheels, handle means on the frame and a selection of tilling tools, including at least a furrow-forming tool and a cultivating tool, each having a shank portion terminating in a transversely extending soil-penetrating projection. The main frame includes a tool-holding frame supported for pivotal movement about a lateral, horizontal axis. In the uppermost position of the tool-holding frame, the latter frame presents a generally horizontally extending recess into which the shank portion of either tool is slidably mountable and locked preferably by a spring-urged latching means. The depth of penetration and the angle of penetration of the soil-penetrating projecting portion of the selected tool is varied preferably by screw means passing through a support member pivoted on a lateral, horizontal axis upon the main frame and secured to a pivoted second support member attached to the tool-holding frame.
    Type: Grant
    Filed: February 12, 1976
    Date of Patent: March 21, 1978
    Assignee: Esmay Products, Inc.
    Inventor: Carl B. Derr