Jerry R Anderson

US Patent:

59640499, Oct 12, 1999

Filed:

Jan 28, 1998

Appl. No.:

9/015550

Inventors:

Patrick E. Dean - Lake Elmo MN
Jerry M. Anderson - Stillwater MN

Assignee:

For the Edge, Inc. - Lake Elmo MN

International Classification:

E02F 508

US Classification:

37189

Abstract:

A trencher has an adjustable depth arbor support mechanism. The depth control mechanism includes a linkage which normally controls the depth of the trench being dug, but which also will allow the arbor to retract from the ground if it hits an obstacle. Preferably, the arbor support mechanism is at least partially counterbalanced by a spring, to allow the arbor to retract without undo force. The trencher has two wheels equidistant on either side of the arbor, and a third steerable wheel at the front of the trencher in line with the arbor. The cutting teeth are mounted to the arbor using a variety of chucks and mounting brackets, so the width of the trench is adjusted by adjusting the chucks and mounting brackets used.

US Patent:

54544335, Oct 3, 1995

Filed:

Jul 31, 1992

Appl. No.:

7/923244

Inventors:

Vernon J. Worrel - Mahtomedi MN
Brian L. Bouchard - West Kingston RI
Scott Kaercher - Blaine MN
Jerry Anderson - Somerset WI
James Stewart - Shoreview MN

Assignee:

Turfco Manufacturing, Incorporated - Minneapolis MN

International Classification:

A01B 4504

US Classification:

172 20

Abstract:

A sod harvesting apparatus (10) is disclosed including a cut-off device (14), a cutting unit (16) and a roll-up and core carrying device (18) mounted to a tractor (12). The cut-off device (14) includes an H-shaped slide (20) including a blade (26) pivotably attached thereto, slideably movable in tubes (30) from a cutting position to a raised position against the bias of springs (32) in the tubes (30) by a hydraulic cylinder (36), and latched in the raised position by a mechanism (38). The cutting unit (16) includes a blade assembly (66) pivotably mounted to a frame (52) and vibrated at a high frequency and low amplitude by vibrating devices (84) mounted on the frame (70) of the blade assembly (66). A roller drum (90) extends between first and second lever arms (92) pivotably mounted to the frame (52) and pivoted by electric actuators (96). The roll-up device (18) includes first and second arms (110,112) carrying cone-shaped spindles (120) pivotably mounted to the opposite ends of a bar (114).

US Patent:

55712525, Nov 5, 1996

Filed:

Jun 6, 1995

Appl. No.:

8/465722

Inventors:

Vernon J. Worrel - Mahtomedi MN
Brian L. Bouchard - West Kingston RI
Scott Kaercher - Blaine MN
Jerry Anderson - Somerset WI
James Stewart - Shoreview MN

Assignee:

Turfco Manufacturing, Incorporated - Minneapolis MN

International Classification:

A01B 4504

US Classification:

172 20

Abstract:

A sod harvesting apparatus (10) is disclosed including a cut-off device (14), a cutting unit (16) and a roll-up and core carrying device (18) mounted to a tractor (12). The cut-off device (14) includes an H-shaped slide (20) including a blade (26) pivotably attached thereto, slideably movable in tubes (30) from a cutting position to a raised position against the bias of springs (32) in the tubes (30) by a hydraulic cylinder (36), and latched in the raised position by a mechanism (38). The cutting unit (16) includes a blade assembly (66) pivotably mounted to a frame (52) and vibrated at a high frequency and low amplitude by vibrating devices (84) mounted on the frame (70) of the blade assembly (66). A roller drum (90) extends between first and second lever arms (92) pivotably mounted to the frame (52) and pivoted by electric actuators (96). The roll-up device (18) includes first and second arms (110,112) carrying cone-shaped spindles (120) pivotably mounted to the opposite ends of a bar (114).