David M Johnsen, Age 55831 Virginia St, Racine, WI 53405

6622633, Sep 23, 2003

Mar 29, 2002

10/113360

David Sean Johnsen - Wauwatosa WI
William D. Straub - Milwaukee WI
Bruce M. Boczkiewicz - Mukwonago WI

Nordco Inc. - Milwaukee WI

E01B 3300

104 72, 104 2

A railway maintenance device movable on a railroad track having a pair of spaced rails, the device including a frame configured for movement relative to the track and having at least two side members. At least one track contacting element is associated with at least one of the sides. An adjustment mechanism is provided for adjusting the relative position of at least one of the track contacting elements to the frame to thus position the frame relative to the rails. The device preferably includes a fluid power cylinder associated with each track contacting element to control the position of the wheel relative to the frame, as well as a stop mechanism for adjustably limiting the pivoting action of the contacting element relative to the frame, and thus control the displacement of the element.

6755135, Jun 29, 2004

Sep 3, 2002

10/233922

David Sean Johnsen - Wauwatosa WI
William D. Straub - Milwaukee WI
Bruce M. Boczkiewicz - Mukwonago WI

Nordco Inc. - Milwaukee WI

E01B 2906

104 9, 104 6

A combined tie extractor and plate remover for railroad track maintenance includes a frame configured for movement along the track and having a first side corresponding to a first side of the track and a second side corresponding to a second side of the track, each side of the track having a corresponding rail. A rail lifting apparatus associated with the frame is configured for lifting a selected one of the first and second rails away from the track. A plate remover assembly associated with the frame is configured for grasping and removing tie plates associated with each side of the track from a selected tie. At least one tie extracting assembly is disposed on the frame for extracting the gripped tie transversely relative to the track in conjunction with the removal of the tie plates.

6832558, Dec 21, 2004

Oct 11, 2002

10/269214

Robert M. Weber - Wadsworth IL
Donald Christopher Noll - Brookfield WI
Leary Peterson - Franklin WI
David Sean Johnsen - Wauwatosa WI

Nordco Inc. - Oak Creek WI

E01B 2900

104 2, 104 171

A riding rail tie plugging apparatus for plugging spike holes in ties on a railroad track includes a frame provided with wheels for supporting and moving the frame along the track. At least one reservoir is disposed in operational relationship to the frame for dispensing a supply of chemical tie-plugging solution. At least one applicator gun is in fluid communication with the at least one reservoir for dispensing the solution into the holes. At least one operator station is on the frame in operational relationship to the track and to the at least one applicator gun so that the at least one applicator gun is directly positionable by an operator disposed at the station for dispensing the epoxy solution into selected ones of the holes.

6863717, Mar 8, 2005

Mar 29, 2002

10/113585

David Sean Johnsen - Wauwatosa WI, US
William D. Straub - Milwaukee WI, US
Bruce M. Boczkiewicz - Mukwonago WI, US

Nordco Inc. - Oak Creek WI

C09G001/10

106 6, 104 9

A rail plate handling device is provided for removing plates located on rail ties on a railroad track having a pair of rails, and includes a frame configured for movement relative to the track, at least one tie plate gripping assembly mounted to the frame, the assembly configured for grasping a selected tie plate, pulling the plate away from the rail and away from the tie, and subsequently releasing the plate onto the track. The device is mounted upon a cart which is movable on the track, and features gripping assemblies for working on both rails. A tie jack is preferably provided for ensuring the release of the tie from the gripped plate. Still another feature of the present device is a plate height mechanism associated with each gripping assembly for ensuring that the gripping assembly engages the plates at the proper height.

7066277, Jun 27, 2006

Jul 15, 2003

10/619537

Emanuel A. Hendriks - Heythuysen, NL
Mathias M. Hendriks - Baernex, NL
Johannes G. Hendriks - Heythuysen, NL
Wilhelmus J. Hendriks - Heythuysen, NL
David S. Johnsen - Wauwatosa WI, US
Gerald L. Douglas - Smithville OH, US

Steiner Turf Equipment, Inc. - Providence RI

A01B 45/04

172 19, 414911

A numerically-controlled robotic manipulator arm mounted to a sod harvester comprises two segments pivotally coupled together. One segment is rotatably coupled to a fixed base on the harvester while the second segment carries a pick-up head which can turn with respect to the segment. The pick-up head is capable of picking up, holding, and releasing sod rolls. The arm is programmable so that a variety of configurations of stacked sod rolls can be achieved.

7070004, Jul 4, 2006

Jul 22, 2003

10/624462

Emanuel A. Hendriks - Heythuysen, NL
Mathias M. Hendriks - Baernex, NL
Johannes G. Hendriks - Heythuysen, NL
Wilhelmus J. Hendriks - Heythuysen, NL
David S. Johnsen - Wauwatosa WI, US
Gerald L. Douglas - Smithville OH, US

Steiner Turf Equipment, Inc. - Providence RI

A01B 45/04

172 20, 172 33, 414911, 198313

A numerically-controlled robotic manipulator arm mounted to a sod harvester comprises two segments pivotally coupled together. One segment is rotatably coupled to a fixed base on the harvester while the second segment carries a pick-up head which can turn with respect to the segment. The pick-up head is capable of picking up, holding, and releasing sod rolls. The arm is programmable so that a variety of configurations of stacked sod rolls can be achieved.

2007003, Feb 15, 2007

Jun 5, 2006

11/422250

Emanuel Hendriks - Heythuysen, NL
Mathias Hendriks - Baernex, NL
Johannes Hendriks - Heythuysen, NL
Wilhelmus Hendriks - Heythuysen, NL
David Johnsen - Wauwatosa WI, US
Gerald Douglas - Smithville OH, US
Frank Pohlman - Fort Atkinson WI, US

A01B 45/04

172020000

A numerically-controlled robotic manipulator arm mounted to a sod harvester comprises two segments pivotally coupled together. One segment is rotatably coupled to a fixed base on the harvester while the second segment carries a pick-up head which can turn with respect to the segment. The pick-up head is capable of picking up, holding, and releasing sod rolls. The arm is programmable so that a variety of configurations of stacked sod rolls can be achieved.

6095053, Aug 1, 2000

Oct 29, 1998

9/182261

David S. Johnsen - Wauwatosa WI
Robert M. Weber - Wadsworth IL
William D. Straub - Milwaukee WI
Bruce M. Boczkiewicz - Mukwonago WI

Nordco Inc. - Milwaukee WI

E01B 2926

104 171

A bulk loader conveys rigid, stick-like articles in bulk. The bulk loader has a bin for holding a plurality of the articles and a trough connected to a bin having an entrance portion for receiving the articles from the bin and a discharge portion for discharging the articles. An auger, with an inlet end and an outlet end, is rotatably positioned in the trough so that the inlet end is positioned near the entrance portion and the outlet end is positioned near the discharge portion. Upon rotation of the auger, the auger conveys the articles from the entrance portion to the discharge portion. The trough is constructed and arranged to prevent conveyed articles from becoming jammed between said auger and said trough.