William Lee Grimm

Author:

William C. Grimm

ISBN #:

0811730859

Author:

William Carey Grimm

ISBN #:

0070248397

Author:

William Carey Grimm

ISBN #:

0070248400

Author:

William Carey Grimm

ISBN #:

0672517094

Author:

William Carey Grimm

ISBN #:

0811708063

Author:

William Carey Grimm

ISBN #:

0811722201

Author:

William Carey Grimm

ISBN #:

0811728110

US Patent:

55604331, Oct 1, 1996

Filed:

May 12, 1994

Appl. No.:

8/241646

Inventors:

William L. Grimm - Wheaton IL
Austin W. Lutz - Woodridge IL

Assignee:

Case Corporation - Racine WI

International Classification:

A01B 6104

US Classification:

172266

Abstract:

An earth working implement including a frame having at least one earth working tool mounted thereon. A spring biased linkage assembly connects the tool to the frame to allow for vertical "floating" and "tripping" movements of the tool. The linkage assembly includes upper and lower generally parallel links which are pivotally connected to the frame and to a generally vertical standard having the tool connected to the lower end thereof. The upper link is formed from a pair of toggle elements defining a pivotal connection between opposite ends thereof. A spring assembly normally maintains the toggle elements in non-collapsible relation relative to each other and inhibits floating movements of the tool as it is drawn through the soil. The spring mechanism furthermore allows the toggle elements to move to a collapsed position relative to each other thereby allowing the tool to move to a tripped position. The upper and lower links of the linkage assembly are connected by a series of pivotal connections arranged in a quadrilateral formation relative to each other and such that a 1600 pound preload spring tension setting on the spring assembly advantageously requires a 4600 pound draft condition to abe applied to the tool before the tool begins to float and a draft condition ranging between 4200 and 6800 pounds is required to be imparted to the tool before the spring mechanism allows the tool to be moved to a tripped position.

US Patent:

51862611, Feb 16, 1993

Filed:

Jun 25, 1991

Appl. No.:

7/720651

Inventors:

John H. Will - Elkhart IL
William L. Grimm - Wheaton IL

Assignee:

Case Corporation - Racine WI

International Classification:

A01B 6900

US Classification:

172285

Abstract:

A plow assembly adapted for connection to a tractor and including a plurality of plow units commonly connected to a beam which is inclined relative to the direction of travel of the plow assembly. A ground engaging steering wheel supporting a rear end of the beam. A steering system is provided for holding the steering wheel generally parallel to rear wheels on the tractor and for turning the steering wheel through an angle and opposite to a steering angle of the tractor to bring the plow assembly behind the tractor during turns. The steering system includes a linkage mechanism for proportionately reducing the turning angle of the steering wheel relative to the steering angle of the tractor thereby allowing tractor turns to exceed 35. degree. to either side of the direction of travel of the plow assembly. The plow assembly further includes a mechanism for quickly and easily changing the spacing between adjacent plow units as the plow assembly is pulled through the field and with minimal operator involvement.

US Patent:

51395819, Aug 18, 1992

Filed:

Oct 3, 1990

Appl. No.:

7/592419

Inventors:

William L. Grimm - Wheaton IL
William A. Stewart - Hamilton, CA

Assignee:

Case Corporation - Racine WI

International Classification:

C21D 706
C21D 800

US Classification:

148632

Abstract:

A method for producing moldboard for use with plows and the like employs a process whereby the moldboards are shot peened under closely controlled conditions to form a textured, pocked contour across the working surface of the moldboard. This surface structure allows for several prior art steps to be eliminated, and also facilitates the scouring of the moldboard when it is first used thereby allowing the moldboard to scour until a working finish is established on the working surface of the moldboard.

US Patent:

56051964, Feb 25, 1997

Filed:

Mar 30, 1995

Appl. No.:

8/413599

Inventors:

William L. Grimm - Wheaton IL
Austin W. Lutz - Woodridge IL

Assignee:

Case Corporation - Racine WI

International Classification:

A01B 6104

US Classification:

172266

Abstract:

An agricultural implement that includes a plurality of ground penetrating units for shattering the hard pan in a relatively wide pattern as the implement is drawn across the field while causing minimum disturbance to the top surface of the ground. Each ground penetrating unit includes a depending shank with a three piece plow point assembly releasably and symmetrically connected to a forward projecting lower end of the shank. The plow point assembly includes a shoe with first and second vanes attached to the shank rearwardly of a rear surface of the shoe and diverging outwardly from opposite sides of the shank. The shoe and vanes of each plow point assembly are separately and releasably attached to the shank such that any one component of the plow point assembly can be repaired or replaced independent of the other components. Each vane is pivotally fastened to the shank such that a blade portion of the vane can be angularly adjusted relative to upwardly sloping top surface of the shoe to control the degree of lifting force imparted to the ground as the implement is drawn across the field. The shank of each ground penetrating unit is specifically configured to maintain the plow point assembly in the ground.

US Patent:

50727931, Dec 17, 1991

Filed:

Aug 2, 1990

Appl. No.:

7/561837

Inventors:

William L. Grimm - Wheaton IL
Charles E. Sheets - Naperville IL

Assignee:

Case Corporation - Racine WI

International Classification:

A01B 6104

US Classification:

172266

Abstract:

A trip assembly for a ground-working implement includes a rigid toggle member and a spring toggle member that are pinned, respectively, at a first point to a ground-engaging tool and at a second point to a frame. The rigid toggle member and the spring toggle member are pinned together at a third point that is a small distance vertically below a line extending between the first two points. A fulcrum from the rigid toggle member is in contact with the top of the spring toggle member at a central position. An obstruction force transmitted to the ground-engaging tool is transmitted to flex the spring toggle member vertically upwardly at the central position. As the spring toggle member flexes vertically upwardly, the third point moves upwardly through the small distance. Once the third point crosses the line between the first two points, the trip assembly trips and moves the ground-engaging tool to a vertically upwardly removed tripped position. The third point crosses the line once the obstruction force exceeds a trip load.