Patrick E Kuhn

US Patent:

D2713977, Nov 15, 1983

Filed:

May 28, 1981

Appl. No.:

6/268041

Inventors:

Patrick Kuhn - Bismarck ND
Thomas M. Sagaser - Bismarck ND
Oryn B. Wagner - Bismarck ND

Assignee:

Clark Equipment Company - Buchanan MI

International Classification:

D1503

US Classification:

D15 25

US Patent:

45223734, Jun 11, 1985

Filed:

Sep 6, 1983

Appl. No.:

6/529241

Inventors:

William C. Shelbourn - Bismarck ND
Patrick Kuhn - Bismarck ND
Michael A. Vig - Bismarck ND

Assignee:

Clark Equipment Company - Buchanan MI

International Classification:

F16K 3504
F15B 1304

US Classification:

251297

Abstract:

A detent mechanism for a hydraulic control valve, having a detent position in which a detent member is in engagement with a groove and a spring urges the detent member into the groove so that a predetermined force is required to move the detent member out of the groove. A second spring loaded detent member is provided which requires the application of another predetermined force in order to move the mechanism into the detent position. The springs for both of the detent members can be readily changed to adjust the forces required to operate them.

US Patent:

D2569213, Sep 16, 1980

Filed:

May 31, 1978

Appl. No.:

5/911254

Inventors:

Patrick Kuhn - Bismarck ND

Assignee:

Clark Equipment Company - Buchanan MI

International Classification:

D1503

US Classification:

D15 23

US Patent:

42213533, Sep 9, 1980

Filed:

Aug 4, 1978

Appl. No.:

5/930952

Inventors:

Patrick Kuhn - Bismarck ND
Donald K. Schmidt - Bismarck ND

Assignee:

Clark Equipment Company - Buchanan MI

International Classification:

A47F 500

US Classification:

2482921

Abstract:

A boom assembly mountable on a vehicle is provided in which the boom is supported at a lower or working position by a first spring. A manually applied force selectively applies a moment to partially rotate a toggle device and to partially lift the boom to an upper or clearance position. The partial rotation of the toggle device activates a second spring and the boom is raised to a second position by the combined force of the manually applied force and the force of the second spring.

US Patent:

56367996, Jun 10, 1997

Filed:

Jan 13, 1995

Appl. No.:

8/372377

Inventors:

Dennis L. Trusty - Bismarck ND
Oryn B. Wagner - Bismarck ND
Patrick Kuhn - Bismarck ND

Assignee:

Clark Equipment Company - Woodcliff Lake NJ

International Classification:

A01G 2509
B05B 5025

US Classification:

239708

Abstract:

An electrostatic spray system has a support for a liquid container, and the high voltage components mounted through isolators for providing electrical insulation relative to a low voltage or grounded support. The liquid container is connected to a pump that provides the liquid under pressure, after an electric charge is applied to the liquid on the exterior of the liquid container. The liquid container has an open top, and a sprinkler head adds liquid to the liquid container. The sprinkler head is mounted on the low voltage support, but all high voltage components are electrically isolated from low voltage components to insure there is little current leakage back to ground.

US Patent:

D2563649, Aug 12, 1980

Filed:

May 31, 1978

Appl. No.:

5/911245

Inventors:

Patrick Kuhn - Bismarck ND

Assignee:

Clark Equipment Company - Buchanan MI

International Classification:

D1503

US Classification:

D15 30

US Patent:

42002559, Apr 29, 1980

Filed:

Aug 17, 1978

Appl. No.:

5/934295

Inventors:

Donald K. Schmidt - Bismarck ND
Patrick Kuhn - Bismarck ND

Assignee:

Clark Equipment Company - Buchanan MI

International Classification:

A01C 2562

US Classification:

248289A

Abstract:

A vehicle and foldable boom assembly includes an inner boom that extends outwardly from a side of the vehicle and an outer boom that extends outwardly from the inner boom to a working position. A hinge, having a pivot axis that is disposed generally vertically, interconnects the inner and outer booms and allows the outer boom to swing rearwardly to avoid structural damage upon impact with a foreign object; and the pivot axis is inclined in a direction that resiliently urges the outer boom forwardly to the working position so that the outer boom is automatically reset to the working position subsequent to impact with a foreign object.

US Patent:

44482590, May 15, 1984

Filed:

Apr 19, 1982

Appl. No.:

6/369571

Inventors:

Arthur J. Ford - Leesburg GA
Patrick Kuhn - Bismarck ND
William D. Long - Bismarck ND

Assignee:

Lilliston Corporation - Albany GA

International Classification:

A01C 506

US Classification:

172462

Abstract:

A pre-stressed columnar rubber spring interposed between the pressure beam and pivoted draw bar tube of a no-till seed drill deflects under load in one direction only and the force causing increased spring deflection in the principle operational range increases to a desired maximum and then remains substantially constant or decreases slightly thereby relieving the machine of excess stresses caused by contact of coulters and openers with rocks and other field obstructions.