Kevin J Magee

US Patent:

47126221, Dec 15, 1987

Filed:

Apr 24, 1986

Appl. No.:

6/856802

Inventors:

Eugen J. Birkenbach - Kildeer IL
Brad K. Eversole - Bollingbrook IL
Kevin J. Magee - Romeoville IL

Assignee:

J. I. Case Company - Racine WI

International Classification:

A01B 63111

US Classification:

172328

Abstract:

A self-leveling agricultural implement is disclosed which has been particularly configured for maintaining the frame of the implement in a level disposition as it is raised and lowered by relative movement of its hydraulically-operated supporting wheels. The construction includes a pivotal draft hitch at a forward end of the implement frame, and a leveling linkage which operatively connects the draft hitch with a rockshaft of the implement which is operatively connected with its hydraulic actuators. Thus, as the actuators operate to relatively raise and lower the implement wheels, attendant rotation of the rockshaft acts to pivot the draft hitch relative to the frame, whereby the level disposition of the frame is maintained. The construction desirably includes an adjustable link which operatively connects the pivotal draft hitch with the leveling linkage, whereby the implement is readily adjustable for use with different tractors having differing drawbar heights.

US Patent:

48627585, Sep 5, 1989

Filed:

Jan 6, 1988

Appl. No.:

7/140977

Inventors:

Kevin J. Magee - Romeoville IL

Assignee:

J. I. Case Company - Racine WI

International Classification:

F16H 2144

US Classification:

74103

Abstract:

An implement floating frame hinge assembly is provided for accommodating the folding of pivotally connected first and second frame sections wherein a first lever is pivotally connected to the first frame section, a second lever is connected between the second frame section and the first lever, an an extendable and retractable actuator is pivotally connected between the first frame section and the second lever. The assembly includes a connection of the second lever to the second frame section about a pivot axis fixed relative to the second frame section. A pin is moveable with the second lever at a fixed distance from the pivot axis of the connection between the second frame section and the second lever. The first lever defines an elongated slot means for receiving the pin to accommodate relative movement between the pin and the first lever whereby relative pivoting movement between the frame sections can occur even after the frame sections have been unfolded and whereby, during the folding of the frame sections, the pin remains at one end of the slot means.