John Patrick Moyna

US Patent:

6672822, Jan 6, 2004

Filed:

Apr 1, 1999

Appl. No.:

09/283650

Inventors:

John P Moyna - Elkader IA

Assignee:

Caterpillar S.A.R.L. - Geneva

International Classification:

B60P 100

US Classification:

414517, 414492, 414813

Abstract:

An ejecting device for a dump truck has a truck bed with a bed surface, a pair of side walls, and a pivotally moveable tailgate. The ejecting device has a pair of guide rails, one each mounted to a top edge of the side walls of the bed. A generally vertically oriented ejector plate is disposed between the side walls extending transversely there across and has a roller member assembly attached to each side edge. The roller assemblies are carried one in each of the guide rails. The ejector plate is moveable between a fully retracted position at a first end of the truck bed to a fully extended position at a second end of the truck bed adjacent the tailgate. An extendable cylinder is carried on the truck frame and attached to the ejector plate for moving the plate between the fully retracted position and the fully extended position to eject material from the bed.

US Patent:

6719349, Apr 13, 2004

Filed:

Mar 8, 2002

Appl. No.:

10/094535

Inventors:

John P. Moyna - Elkader IA

Assignee:

Caterpillar S.A.R.L. - Geneva

International Classification:

B60P 1267

US Classification:

296 50, 296 56, 414557, 41452554

Abstract:

Trucks and other work machines require strong and easily operated and maintained tailgate assemblies. Often, the operating structure of the tailgate assembly requires precise alignment and relatively large clearance space to operate effectively. The operating structure is also commonly under great stresses from the tension and compression forces that power the operating structure to move the tailgate. A tailgate assembly including a tailgate and an; operating structure is provided. The tailgate is attached to a platform in a hinge d manner and allowed to move pivotally with respect to the platform. The operating structure includes a linear actuator and a linking member. The linear actuator is attached to the platform. The linking member has a first end portion pivotally attached to the linear actuator, a fulcrum pivotally attached to the platform, and a second end portion attached to a tracking member. The tracking member is adapted to contact the tailgate and to move vertically with respect to the tailgate.

US Patent:

6769859, Aug 3, 2004

Filed:

Mar 8, 2002

Appl. No.:

10/094486

Inventors:

John P. Moyna - Elkader IA

Assignee:

Caterpillar S.A.R. L. - Geneva

International Classification:

B60P 100

US Classification:

414517, 414513, 414813

Abstract:

An ejector truck requires an ejector mechanism to remove hauled material from the ejector truck body. Often, these ejector mechanisms are costly and require precise manufacturing and maintenance because they include a telescoping linear actuator. The present invention provides a method and apparatus of a multi-actuator ejection mechanism. The multi-actuator ejection mechanism includes an anchor member, an ejection carriage, an ejector blade, a first linear actuator, and a second linear actuator. The ejector blade is located a predetermined distance from the anchor member and is adapted to move longitudinally with respect to the anchor member. The first linear actuator has a first end secured to the anchor member and a second end secured to the ejection carriage, and is adapted to move the ejection carriage longitudinally with respect to the anchor member. The second linear actuator has a first end secured to the ejection carriage and a second end secured to the ejector blade, and is adapted to move the ejector blade with respect to the ejection carriage. The multi-actuator ejection mechanism of the present invention uses multiple single-stage linear actuators instead of a single telescoping/multiple-stage linear actuator.

US Patent:

6869250, Mar 22, 2005

Filed:

Jan 23, 2003

Appl. No.:

10/350368

Inventors:

John P. Moyna - Elkader IA, US

Assignee:

C. J. Moyna and Sons Inc. - Elkader IA

International Classification:

E01C019/23

US Classification:

404124, 404122

Abstract:

A compacting device and a system and a method for compacting a material are provided. The compacting device may have a base and a column which extends from the base. A sleeve may be fitted and secured around the column. The sleeve may have a length which is greater than a length of the column. Material may be collected within the sleeve and may be used for compaction.

US Patent:

6910289, Jun 28, 2005

Filed:

Feb 27, 2003

Appl. No.:

10/377567

Inventors:

John P. Moyna - Elkader IA, US
David K. Kobliska - Elkader IA, US
James P. Junk - McGregor IA, US

Assignee:

CJ Moyna + Sons, Inc. - Elkader IA

International Classification:

E02F003/64
G05D001/00

US Classification:

37381, 37409, 37410, 37416, 37425, 37426, 37428, 37430, 37445, 37903, 37907, 172815

Abstract:

A scraping device, a system and a method for collecting a material are provided. The scraping device may have a bowl having a first end and a second end. A lip may be positioned at the first end and may cover an opening at the first end. In an embodiment, direct mounted cylinders may be attached to the lip and may move the lip to completely cover or uncover the opening. The scraping device may have a tongue mounted to the bowl having a triangular-shaped plate mechanism that may be used to raise and to lower a cutting edge attached to the bowl. Cylinders connected to the mechanism may be retracted or extended to raise or to lower the scraping device. A load within the scraping device may be lifted by force exerted from a barrel end of a cylinder, thus utilizing a maximum potential of the cylinder.

US Patent:

7112006, Sep 26, 2006

Filed:

Mar 21, 2005

Appl. No.:

11/086685

Inventors:

John P. Moyna - Elkader IA, US

International Classification:

E01C 19/26

US Classification:

404124, 404121

Abstract:

A compacting device and a system and a method for compacting a material are provided. The compacting device may have a base and a column which extends from the base. A sleeve may be fitted and secured around the column. The sleeve may have a length which is greater than a length of the column. Material may be collected within the sleeve and may be used for compaction.

US Patent:

7117953, Oct 10, 2006

Filed:

May 31, 2005

Appl. No.:

11/141168

Inventors:

John P. Moyna - Elkader IA, US

International Classification:

A01B 15/00
A01B 23/00
A01B 31/00
A01B 51/00
A01B 59/00

US Classification:

172272, 6776845, 37231, 37268, 37381

Abstract:

A scraping device, a system and a method for collecting a material are provided. The scraping device may have a bowl having a first end and a second end. A lip may be positioned at the first end and may cover an opening at the first end. In an embodiment, direct mounted cylinders may be attached to the lip and may move the lip to completely cover or uncover the opening. The scraping device may have a tongue mounted to the bowl having a triangular-shaped plate mechanism that may be used to raise and to lower a cutting edge attached to the bowl. Cylinders connected to the mechanism may be retracted or extended to raise or to lower the scraping device. A load within the scraping device may be lifted by force exerted from a barrel end of a cylinder, thus utilizing a maximum potential of the cylinder.

US Patent:

7356949, Apr 15, 2008

Filed:

Feb 13, 2006

Appl. No.:

11/352977

Inventors:

John P. Moyna - Elkader IA, US
David K Kobliska - Elkader IA, US
James P. Junk - McGregor IA, US

Assignee:

Caterpillar Inc. - Peoria IL

International Classification:

E02F 3/64
G05D 1/00

US Classification:

37381, 37409, 37410, 37416, 37425, 37426, 37428, 37430, 37445, 37903, 37907, 172815

Abstract:

A scraping device, a system and a method for collecting a material are provided. The scraping device may have a bowl having a first end and a second end. A lip may be positioned at the first end and may cover an opening at the first end. In an embodiment, direct mounted cylinders may be attached to the lip and may move the lip to completely cover or uncover the opening. The scraping device may have a tongue mounted to the bowl having a triangular-shaped plate mechanism that may be used to raise and to lower a cutting edge attached to the bowl. Cylinders connected to the mechanism may be retracted or extended to raise or to lower the scraping device. A load within the scraping device may be lifted by force exerted from a barrel end of a cylinder, thus utilizing a maximum potential of the cylinder.