Sod harvester with controlled sod cut-off and conveying system

Details Sod harvester with controlled sod cut-off and conveying system Sod harvester with controlled sod cut-off and conveying system

2007-09-04

2007-09-04

Will, Thomas B. (Department: 3671)

Earth working

Automatic power control

C172S020000

Reexamination Certificate

active

10896822

ABSTRACT:
A sod harvester includes a sod cut-off system driven by a hydraulic actuator controlled by a processor in response to signals from a ground speed sensor to cut a strip of sod to a desired length. The controller also operating to control the speed of conveyors used to roll the sod into a roll. The sensor measures the rotations of a ground wheel and produces a signal which is used by a processor on the harvester to determine the distance traveled by the harvester. A control valve assembly and a high pressure hydraulic fluid accumulator provide for rapid extension of the actuators to produce a rapid downward cutting action of the cutting blades. A hydraulic motor connected in driving relationship to an outer rear wheel of the harvester provides power thereto to overcome the tendency of the tractor to drift to that side.

REFERENCES:
patent: 3590927 (1971-07-01), Brouwer et al.
patent: 3913682 (1975-10-01), Kaercher et al.
patent: 4832130 (1989-05-01), Brouwer et al.
patent: 5269379 (1993-12-01), Millar et al.
patent: RE34827 (1995-01-01), Dover et al.
patent: 5571252 (1996-11-01), Worrel et al.
patent: 5626195 (1997-05-01), Dover
patent: 6244354 (2001-06-01), Van Vuuren
patent: 6273196 (2001-08-01), Van Vuuren
patent: 6659189 (2003-12-01), Woerner et al.
patent: 6681864 (2004-01-01), Tvetene et al.
patent: 7070004 (2006-07-01), Hendriks et al.
patent: 2005/0016743 (2005-01-01), Hendriks et al.
Advertising materials of Trebro Manufacturing showing Harvestack Automatic Stacking Harvester believed to have been on sale for more than one year prior to the filing date of the present application.
Advertising material of Auburn Gear showing Wheel planetary gear drives believed to have been on sale for more than one year prior to the filing date of the present application.
Advertising materials of Sauer Danfoss showing KPP Pulse Pickup believed to have been on sale for more than one year prior to the filing date of the present application.
Advertising materials of Danfoss Hydraulics showing Hydraulic Motors with speed sensor, types OMM EM, OMP EM, OMR EM, OMS EM, OMSW EM, OMT EM and OMV EM believed to have been on sale for more than one year prior to the filing date of the present application.

Affiliated with

Also associated with

Rating

Sod harvester with controlled sod cut-off and conveying system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Sod harvester with controlled sod cut-off and conveying system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Sod harvester with controlled sod cut-off and conveying system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3766082